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/*
* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* questions.
*/
package javafx.scene;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;
import javafx.beans.InvalidationListener;
import javafx.beans.Observable;
import javafx.beans.binding.BooleanExpression;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.BooleanPropertyBase;
import javafx.beans.property.DoubleProperty;
import javafx.beans.property.DoublePropertyBase;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.ObjectPropertyBase;
import javafx.beans.property.ReadOnlyBooleanProperty;
import javafx.beans.property.ReadOnlyBooleanPropertyBase;
import javafx.beans.property.ReadOnlyBooleanWrapper;
import javafx.beans.property.ReadOnlyObjectProperty;
import javafx.beans.property.ReadOnlyObjectPropertyBase;
import javafx.beans.property.ReadOnlyObjectWrapper;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.beans.property.StringProperty;
import javafx.beans.property.StringPropertyBase;
import javafx.beans.value.ChangeListener;
import javafx.collections.FXCollections;
import javafx.collections.ListChangeListener.Change;
import javafx.collections.ObservableList;
import javafx.collections.ObservableMap;
import javafx.collections.ObservableSet;
import javafx.event.Event;
import javafx.event.EventDispatchChain;
import javafx.event.EventDispatcher;
import javafx.event.EventHandler;
import javafx.event.EventTarget;
import javafx.event.EventType;
import javafx.geometry.BoundingBox;
import javafx.geometry.Bounds;
import javafx.geometry.Orientation;
import javafx.geometry.Point2D;
import javafx.geometry.Point3D;
import javafx.geometry.Rectangle2D;
import javafx.scene.effect.Blend;
import javafx.scene.effect.BlendMode;
import javafx.scene.effect.Effect;
import javafx.scene.image.WritableImage;
import javafx.scene.input.ContextMenuEvent;
import javafx.scene.input.DragEvent;
import javafx.scene.input.Dragboard;
import javafx.scene.input.InputEvent;
import javafx.scene.input.InputMethodEvent;
import javafx.scene.input.InputMethodRequests;
import javafx.scene.input.KeyEvent;
import javafx.scene.input.MouseDragEvent;
import javafx.scene.input.MouseEvent;
import javafx.scene.input.RotateEvent;
import javafx.scene.input.ScrollEvent;
import javafx.scene.input.SwipeEvent;
import javafx.scene.input.TouchEvent;
import javafx.scene.input.TransferMode;
import javafx.scene.input.ZoomEvent;
import javafx.scene.text.Font;
import javafx.scene.transform.Rotate;
import javafx.scene.transform.Transform;
import javafx.util.Callback;
import com.sun.javafx.Logging;
import com.sun.javafx.TempState;
import com.sun.javafx.Utils;
import com.sun.javafx.beans.IDProperty;
import com.sun.javafx.beans.event.AbstractNotifyListener;
import com.sun.javafx.binding.ExpressionHelper;
import com.sun.javafx.collections.TrackableObservableList;
import com.sun.javafx.collections.UnmodifiableListSet;
import com.sun.javafx.css.PseudoClassState;
import javafx.css.ParsedValue;
import com.sun.javafx.css.Selector;
import com.sun.javafx.css.Style;
import javafx.css.StyleConverter;
import javafx.css.Styleable;
import javafx.css.StyleableBooleanProperty;
import javafx.css.StyleableDoubleProperty;
import javafx.css.StyleableObjectProperty;
import javafx.css.CssMetaData;
import javafx.css.PseudoClass;
import com.sun.javafx.css.converters.BooleanConverter;
import com.sun.javafx.css.converters.CursorConverter;
import com.sun.javafx.css.converters.EffectConverter;
import com.sun.javafx.css.converters.EnumConverter;
import com.sun.javafx.css.converters.SizeConverter;
import com.sun.javafx.effect.EffectDirtyBits;
import com.sun.javafx.geom.BaseBounds;
import com.sun.javafx.geom.BoxBounds;
import com.sun.javafx.geom.PickRay;
import com.sun.javafx.geom.RectBounds;
import com.sun.javafx.geom.transform.Affine3D;
import com.sun.javafx.geom.transform.BaseTransform;
import com.sun.javafx.geom.transform.NoninvertibleTransformException;
import com.sun.javafx.geom.Vec3d;
import com.sun.javafx.geom.transform.GeneralTransform3D;
import com.sun.javafx.jmx.MXNodeAlgorithm;
import com.sun.javafx.jmx.MXNodeAlgorithmContext;
import sun.util.logging.PlatformLogger;
import com.sun.javafx.perf.PerformanceTracker;
import com.sun.javafx.scene.BoundsAccessor;
import com.sun.javafx.scene.CameraHelper;
import com.sun.javafx.scene.CssFlags;
import com.sun.javafx.scene.DirtyBits;
import com.sun.javafx.scene.EventHandlerProperties;
import com.sun.javafx.scene.NodeEventDispatcher;
import com.sun.javafx.scene.NodeHelper;
import com.sun.javafx.scene.SceneHelper;
import com.sun.javafx.scene.SceneUtils;
import com.sun.javafx.scene.input.PickResultChooser;
import com.sun.javafx.scene.transform.TransformUtils;
import com.sun.javafx.scene.traversal.Direction;
import com.sun.javafx.sg.PGNode;
import com.sun.javafx.tk.Toolkit;
import javafx.css.StyleableProperty;
import javafx.geometry.NodeOrientation;
import javafx.stage.Window;
/**
* Base class for scene graph nodes. A scene graph is a set of tree data structures
* where every item has zero or one parent, and each item is either
* a "leaf" with zero sub-items or a "branch" with zero or more sub-items.
*
* Each item in the scene graph is called a {@code Node}. Branch nodes are
* of type {@link Parent}, whose concrete subclasses are {@link Group},
* {@link javafx.scene.layout.Region}, and {@link javafx.scene.control.Control},
* or subclasses thereof.
*
* Leaf nodes are classes such as
* {@link javafx.scene.shape.Rectangle}, {@link javafx.scene.text.Text},
* {@link javafx.scene.image.ImageView}, {@link javafx.scene.media.MediaView},
* or other such leaf classes which cannot have children. Only a single node within
* each scene graph tree will have no parent, which is referred to as the "root" node.
*
* There may be several trees in the scene graph. Some trees may be part of
* a {@link Scene}, in which case they are eligible to be displayed.
* Other trees might not be part of any {@link Scene}.
*
* A node may occur at most once anywhere in the scene graph. Specifically,
* a node must appear no more than once in all of the following:
* as the root node of a {@link Scene},
* the children ObservableList of a {@link Parent},
* or as the clip of a {@link Node}.
*
* The scene graph must not have cycles. A cycle would exist if a node is
* an ancestor of itself in the tree, considering the {@link Group} content
* ObservableList, {@link Parent} children ObservableList, and {@link Node} clip relationships
* mentioned above.
*
* If a program adds a child node to a Parent (including Group, Region, etc)
* and that node is already a child of a different Parent or the root of a Scene,
* the node is automatically (and silently) removed from its former parent.
* If a program attempts to modify the scene graph in any other way that violates
* the above rules, an exception is thrown, the modification attempt is ignored
* and the scene graph is restored to its previous state.
*
* It is possible to rearrange the structure of the scene graph, for
* example, to move a subtree from one location in the scene graph to
* another. In order to do this, one would normally remove the subtree from
* its old location before inserting it at the new location. However, the
* subtree will be automatically removed as described above if the application
* doesn't explicitly remove it.
*
* Node objects may be constructed and modified on any thread as long they are
* not yet attached to a {@link Scene}. An application must attach nodes to a
* Scene, and modify nodes that are already attached to a Scene, on the JavaFX
* Application Thread.
*
*
String ID
*
* Each node in the scene graph can be given a unique {@link #idProperty id}. This id is
* much like the "id" attribute of an HTML tag in that it is up to the designer
* and developer to ensure that the {@code id} is unique within the scene graph.
* A convenience function called {@link #lookup(String)} can be used to find
* a node with a unique id within the scene graph, or within a subtree of the
* scene graph. The id can also be used identify nodes for applying styles; see
* the CSS section below.
*
*
Coordinate System
*
* The {@code Node} class defines a traditional computer graphics "local"
* coordinate system in which the {@code x} axis increases to the right and the
* {@code y} axis increases downwards. The concrete node classes for shapes
* provide variables for defining the geometry and location of the shape
* within this local coordinate space. For example,
* {@link javafx.scene.shape.Rectangle} provides {@code x}, {@code y},
* {@code width}, {@code height} variables while
* {@link javafx.scene.shape.Circle} provides {@code centerX}, {@code centerY},
* and {@code radius}.
*
* At the device pixel level, integer coordinates map onto the corners and
* cracks between the pixels and the centers of the pixels appear at the
* midpoints between integer pixel locations. Because all coordinate values
* are specified with floating point numbers, coordinates can precisely
* point to these corners (when the floating point values have exact integer
* values) or to any location on the pixel. For example, a coordinate of
* {@code (0.5, 0.5)} would point to the center of the upper left pixel on the
* {@code Stage}. Similarly, a rectangle at {@code (0, 0)} with dimensions
* of {@code 10} by {@code 10} would span from the upper left corner of the
* upper left pixel on the {@code Stage} to the lower right corner of the
* 10th pixel on the 10th scanline. The pixel center of the last pixel
* inside that rectangle would be at the coordinates {@code (9.5, 9.5)}.
*
* In practice, most nodes have transformations applied to their coordinate
* system as mentioned below. As a result, the information above describing
* the alignment of device coordinates to the pixel grid is relative to
* the transformed coordinates, not the local coordinates of the nodes.
* The {@link javafx.scene.shape.Shape Shape} class describes some additional
* important context-specific information about coordinate mapping and how
* it can affect rendering.
*
*
Transformations
*
* Any {@code Node} can have transformations applied to it. These include
* translation, rotation, scaling, or shearing.
*
* A translation transformation is one which shifts the origin of the
* node's coordinate space along either the x or y axis. For example, if you
* create a {@link javafx.scene.shape.Rectangle} which is drawn at the origin
* (x=0, y=0) and has a width of 100 and a height of 50, and then apply a
* {@link javafx.scene.transform.Translate} with a shift of 10 along the x axis
* (x=10), then the rectangle will appear drawn at (x=10, y=0) and remain
* 100 points wide and 50 tall. Note that the origin was shifted, not the
* {@code x} variable of the rectangle.
*
* A common node transform is a translation by an integer distance, most often
* used to lay out nodes on the stage. Such integer translations maintain the
* device pixel mapping so that local coordinates that are integers still
* map to the cracks between pixels.
*
* A rotation transformation is one which rotates the coordinate space of
* the node about a specified "pivot" point, causing the node to appear rotated.
* For example, if you create a {@link javafx.scene.shape.Rectangle} which is
* drawn at the origin (x=0, y=0) and has a width of 100 and height of 30 and
* you apply a {@link javafx.scene.transform.Rotate} with a 90 degree rotation
* (angle=90) and a pivot at the origin (pivotX=0, pivotY=0), then
* the rectangle will be drawn as if its x and y were zero but its height was
* 100 and its width -30. That is, it is as if a pin is being stuck at the top
* left corner and the rectangle is rotating 90 degrees clockwise around that
* pin. If the pivot point is instead placed in the center of the rectangle
* (at point x=50, y=15) then the rectangle will instead appear to rotate about
* its center.
*
* Note that as with all transformations, the x, y, width, and height variables
* of the rectangle (which remain relative to the local coordinate space) have
* not changed, but rather the transformation alters the entire coordinate space
* of the rectangle.
*
* A scaling transformation causes a node to either appear larger or
* smaller depending on the scaling factor. Scaling alters the coordinate space
* of the node such that each unit of distance along the axis in local
* coordinates is multipled by the scale factor. As with rotation
* transformations, scaling transformations are applied about a "pivot" point.
* You can think of this as the point in the Node around which you "zoom". For
* example, if you create a {@link javafx.scene.shape.Rectangle} with a
* {@code strokeWidth} of 5, and a width and height of 50, and you apply a
* {@link javafx.scene.transform.Scale} with scale factors (x=2.0, y=2.0) and
* a pivot at the origin (pivotX=0, pivotY=0), the entire rectangle
* (including the stroke) will double in size, growing to the right and
* downwards from the origin.
*
* A shearing transformation, sometimes called a skew, effectively
* rotates one axis so that the x and y axes are no longer perpendicular.
*
* Multiple transformations may be applied to a node by specifying an ordered
* chain of transforms. The order in which the transforms are applied is
* defined by the ObservableList specified in the {@link #getTransforms transforms} variable.
*
*
Bounding Rectangles
*
* Since every {@code Node} has transformations, every Node's geometric
* bounding rectangle can be described differently depending on whether
* transformations are accounted for or not.
*
* Each {@code Node} has a read-only {@link #boundsInLocalProperty boundsInLocal}
* variable which specifies the bounding rectangle of the {@code Node} in
* untransformed local coordinates. {@code boundsInLocal} includes the
* Node's shape geometry, including any space required for a
* non-zero stroke that may fall outside the local position/size variables,
* and its {@link #clipProperty clip} and {@link #effectProperty effect} variables.
*
* Each {@code Node} also has a read-only {@link #boundsInParentProperty boundsInParent} variable which
* specifies the bounding rectangle of the {@code Node} after all transformations
* have been applied, including those set in {@link #getTransforms transforms},
* {@link #scaleXProperty scaleX}/{@link #scaleYProperty scaleY}, {@link #rotateProperty rotate},
* {@link #translateXProperty translateX}/{@link #translateYProperty translateY}, and {@link #layoutXProperty layoutX}/{@link #layoutYProperty layoutY}.
* It is called "boundsInParent" because the rectangle will be relative to the
* parent's coordinate system. This is the 'visual' bounds of the node.
*
* Finally, the {@link #layoutBoundsProperty layoutBounds} variable defines the rectangular bounds of
* the {@code Node} that should be used as the basis for layout calculations and
* may differ from the visual bounds of the node. For shapes, Text, and ImageView,
* layoutBounds by default includes only the shape geometry, including space required
* for a non-zero {@code strokeWidth}, but does not include the effect,
* clip, or any transforms. For resizable classes (Regions and Controls)
* layoutBounds will always map to {@code 0,0 width x height}.
*
*
The image shows a node with transformation (rotation by 20 degrees)
* and its bounds. The red rectangle represents {@code boundsInParent} in the
* coordinate space of the Node's parent. The green rectangle represents {@code boundsInLocal}
* in coordinate space of the Node.
* 
*
* The images show a filled and stroked rectangle and their bounds. The
* first rectangle {@code [x:10.0 y:10.0 width:100.0 height:100.0 strokeWidth:0]}
* has the following bounds bounds: {@code [x:10.0 y:10.0 width:100.0 height:100.0]}.
*
* The second rectangle {@code [x:10.0 y:10.0 width:100.0 height:100.0 strokeWidth:5]}
* has the following bounds: {@code [x:5.0 y:5.0 width:110.0 height:110.0]}.
*
* Since neither of the rectangles has any transformation applied,
* {@code boundsInParent} and {@code boundsInLocal} are the same.
* 
*
*
* CSS
*
* The {@code Node} class contains {@code id}, {@code styleClass}, and
* {@code style} variables that are used in styling this node from
* CSS. The {@code id} and {@code styleClass} variables are used in
* CSS style sheets to identify nodes to which styles should be
* applied. The {@code style} variable contains style properties and
* values that are applied directly to this node.
*
* For further information about CSS and how to apply CSS styles
* to nodes, see the CSS Reference
* Guide.
* @since JavaFX 2.0
*/
@IDProperty("id")
public abstract class Node implements EventTarget, Styleable {
static {
PerformanceTracker.logEvent("Node class loaded");
}
/**************************************************************************
* *
* Methods and state for managing the dirty bits of a Node. The dirty *
* bits are flags used to keep track of what things are dirty on the *
* node and therefore need processing on the next pulse. Since the pulse *
* happens asynchronously to the change that made the node dirty (for *
* performance reasons), we need to keep track of what things have *
* changed. *
* *
*************************************************************************/
/**
* Set of dirty bits that are set when state is invalidated and cleared by
* the updateState method, which is called from the synchronizer.
*/
private int dirtyBits;
/**
* Mark the specified bit as dirty, and add this node to the scene's dirty list.
*
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
protected void impl_markDirty(DirtyBits dirtyBit) {
if (impl_isDirtyEmpty()) {
addToSceneDirtyList();
}
dirtyBits |= dirtyBit.getMask();
}
private void addToSceneDirtyList() {
Scene s = getScene();
if (s != null) {
s.addToDirtyList(this);
if (getSubScene() != null) {
getSubScene().setDirty(this);
}
}
}
/**
* Test whether the specified dirty bit is set
*
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
protected final boolean impl_isDirty(DirtyBits dirtyBit) {
return (dirtyBits & dirtyBit.getMask()) != 0;
}
/**
* Clear the specified dirty bit
*
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
protected final void impl_clearDirty(DirtyBits dirtyBit) {
dirtyBits &= ~dirtyBit.getMask();
}
/**
* Set all dirty bits
*/
private void setDirty() {
dirtyBits = ~0;
}
/**
* Clear all dirty bits
*/
private void clearDirty() {
dirtyBits = 0;
}
/**
* Test whether the set of dirty bits is empty
*
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
protected final boolean impl_isDirtyEmpty() {
return dirtyBits == 0;
}
/**************************************************************************
* *
* Methods for synchronizing state from this Node to its PG peer. This *
* should only *ever* be called during synchronization initialized as a *
* result of a pulse. Any attempt to synchronize at any other time may *
* cause rendering artifacts. *
* *
*************************************************************************/
/**
* Called by the synchronizer to update the state and
* clear dirtybits of this node in the PG graph
*
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
public final void impl_syncPGNode() {
// Do not synchronize invisible nodes unless their visibility has changed
if (!impl_isDirtyEmpty() && (treeVisible || impl_isDirty(DirtyBits.NODE_VISIBLE))) {
impl_updatePG();
clearDirty();
}
}
/**
* A temporary rect used for computing bounds by the various bounds
* variables. This bounds starts life as a RectBounds, but may be promoted
* to a BoxBounds if there is a 3D transform mixed into its computation.
* These two fields were held in a thread local, but were then pulled
* out of it so that we could compute bounds before holding the
* synchronization lock. These objects have to be per-instance so
* that we can pass the right data down to the PG side later during
* synchronization (rather than statics as they were before).
*/
private BaseBounds _geomBounds = new RectBounds(0, 0, -1, -1);
private BaseBounds _txBounds = new RectBounds(0, 0, -1, -1);
// Happens before we hold the sync lock
void updateBounds() {
// See impl_syncPGNode()
if (!treeVisible && !impl_isDirty(DirtyBits.NODE_VISIBLE)) {
return;
}
if (impl_isDirty(DirtyBits.NODE_TRANSFORM) || impl_isDirty(DirtyBits.NODE_TRANSFORMED_BOUNDS)) {
if (impl_isDirty(DirtyBits.NODE_TRANSFORM)) {
updateLocalToParentTransform();
}
_txBounds = getTransformedBounds(_txBounds,
BaseTransform.IDENTITY_TRANSFORM);
}
if (impl_isDirty(DirtyBits.NODE_BOUNDS)) {
_geomBounds = getGeomBounds(_geomBounds,
BaseTransform.IDENTITY_TRANSFORM);
}
Node n = getClip();
if (n != null) {
n.updateBounds();
}
}
/**
* This function is called during synchronization to update the state of the
* PG Node from the FX Node. Subclasses of Node should override this method
* and must call super.impl_updatePG()
*
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
public void impl_updatePG() {
final PGNode peer = impl_getPGNode();
if (impl_isDirty(DirtyBits.NODE_TRANSFORM)) {
peer.setTransformMatrix(localToParentTx);
}
if (impl_isDirty(DirtyBits.NODE_BOUNDS)) {
peer.setContentBounds(_geomBounds);
}
if (impl_isDirty(DirtyBits.NODE_TRANSFORMED_BOUNDS)) {
peer.setTransformedBounds(_txBounds, !impl_isDirty(DirtyBits.NODE_BOUNDS));
}
if (impl_isDirty(DirtyBits.NODE_OPACITY)) {
peer.setOpacity((float)Utils.clamp(0, getOpacity(), 1));
}
if (impl_isDirty(DirtyBits.NODE_CACHE)) {
peer.setCachedAsBitmap(isCache(), toPGCacheHint(getCacheHint()));
}
if (impl_isDirty(DirtyBits.NODE_CLIP)) {
peer.setClipNode(getClip() != null ? getClip().impl_getPGNode() : null);
}
if (impl_isDirty(DirtyBits.EFFECT_EFFECT)) {
if (getEffect() != null) {
getEffect().impl_sync();
peer.effectChanged();
}
}
if (impl_isDirty(DirtyBits.NODE_EFFECT)) {
peer.setEffect(getEffect() != null ? getEffect().impl_getImpl() : null);
}
if (impl_isDirty(DirtyBits.NODE_VISIBLE)) {
peer.setVisible(isVisible());
}
if (impl_isDirty(DirtyBits.NODE_DEPTH_TEST)) {
peer.setDepthTest(isDerivedDepthTest());
}
if (impl_isDirty(DirtyBits.NODE_BLENDMODE)) {
BlendMode mode = getBlendMode();
peer.setNodeBlendMode((mode == null)
? null
: Blend.impl_getToolkitMode(mode));
}
}
/*************************************************************************
* *
* *
* *
*************************************************************************/
private static final Object USER_DATA_KEY = new Object();
// A map containing a set of properties for this node
private ObservableMap properties;
/**
* Returns an observable map of properties on this node for use primarily
* by application developers.
*
* @return an observable map of properties on this node for use primarily
* by application developers
*/
public final ObservableMap getProperties() {
if (properties == null) {
properties = FXCollections.observableMap(new HashMap());
}
return properties;
}
/**
* Tests if Node has properties.
* @return true if node has properties.
*/
public boolean hasProperties() {
return properties != null && !properties.isEmpty();
}
/**
* Convenience method for setting a single Object property that can be
* retrieved at a later date. This is functionally equivalent to calling
* the getProperties().put(Object key, Object value) method. This can later
* be retrieved by calling {@link Node#getUserData()}.
*
* @param value The value to be stored - this can later be retrieved by calling
* {@link Node#getUserData()}.
*/
public void setUserData(Object value) {
getProperties().put(USER_DATA_KEY, value);
}
/**
* Returns a previously set Object property, or null if no such property
* has been set using the {@link Node#setUserData(java.lang.Object)} method.
*
* @return The Object that was previously set, or null if no property
* has been set or if null was set.
*/
public Object getUserData() {
return getProperties().get(USER_DATA_KEY);
}
/**************************************************************************
* *
*
* *
*************************************************************************/
/**
* The parent of this {@code Node}. If this {@code Node} has not been added
* to a scene graph, then parent will be null.
*
* @defaultValue null
*/
private ReadOnlyObjectWrapper parent;
final void setParent(Parent value) {
parentPropertyImpl().set(value);
}
public final Parent getParent() {
return parent == null ? null : parent.get();
}
public final ReadOnlyObjectProperty parentProperty() {
return parentPropertyImpl().getReadOnlyProperty();
}
private ReadOnlyObjectWrapper parentPropertyImpl() {
if (parent == null) {
parent = new ReadOnlyObjectWrapper() {
private Parent oldParent;
@Override
protected void invalidated() {
if (oldParent != null) {
oldParent.disabledProperty().removeListener(parentDisabledChangedListener);
oldParent.impl_treeVisibleProperty().removeListener(parentTreeVisibleChangedListener);
if (nodeTransformation != null && nodeTransformation.listenerReasons > 0) {
((Node) oldParent).localToSceneTransformProperty().removeListener(
nodeTransformation.getLocalToSceneInvalidationListener());
}
}
updateDisabled();
computeDerivedDepthTest();
final Parent newParent = get();
if (newParent != null) {
newParent.disabledProperty().addListener(parentDisabledChangedListener);
newParent.impl_treeVisibleProperty().addListener(parentTreeVisibleChangedListener);
if (nodeTransformation != null && nodeTransformation.listenerReasons > 0) {
((Node) newParent).localToSceneTransformProperty().addListener(
nodeTransformation.getLocalToSceneInvalidationListener());
}
//
// if parent changed, then CSS needs to be reapplied so
// that this node will get the right styles. This used
// to be done from Parent.children's onChanged method.
// See the comments there, also.
//
impl_reapplyCSS();
}
updateTreeVisible();
oldParent = newParent;
invalidateLocalToSceneTransform();
parentResolvedOrientationInvalidated();
}
@Override
public Object getBean() {
return Node.this;
}
@Override
public String getName() {
return "parent";
}
};
}
return parent;
}
private final InvalidationListener parentDisabledChangedListener = new InvalidationListener() {
@Override public void invalidated(Observable valueModel) {
updateDisabled();
}
};
private final InvalidationListener parentTreeVisibleChangedListener = new InvalidationListener() {
@Override public void invalidated(Observable valueModel) {
updateTreeVisible();
}
};
private SubScene subScene = null;
/**
* The {@link Scene} that this {@code Node} is part of. If the Node is not
* part of a scene, then this variable will be null.
*
* @defaultValue null
*/
private ReadOnlyObjectWrapperManualFire scene = new ReadOnlyObjectWrapperManualFire();
private class ReadOnlyObjectWrapperManualFire extends ReadOnlyObjectWrapper {
@Override
public Object getBean() {
return Node.this;
}
@Override
public String getName() {
return "scene";
}
@Override
protected void fireValueChangedEvent() {
/*
* Note: This method has been intentionally made into a no-op. In
* order to override the default set behavior. By default calling
* set(...) on a different scene will trigger:
* - invalidated();
* - fireValueChangedEvent();
* Both of the above are no-ops, but are handled manually via
* - Node.this.setScenes(...)
* - Node.this.invalidatedScenes(...)
* - forceValueChangedEvent()
*/
}
public void fireSuperValueChangedEvent() {
super.fireValueChangedEvent();
}
}
private void invalidatedScenes(Scene oldScene, SubScene oldSubScene) {
Scene newScene = sceneProperty().get();
boolean sceneChanged = oldScene != newScene;
SubScene newSubScene = subScene;
if (getClip() != null) {
getClip().setScenes(newScene, newSubScene);
}
if (sceneChanged) {
updateCanReceiveFocus();
if (isFocusTraversable()) {
if (oldScene != null) {
oldScene.unregisterTraversable(Node.this);
}
if (newScene != null) {
newScene.registerTraversable(Node.this);
}
}
focusSetDirty(oldScene);
focusSetDirty(newScene);
}
scenesChanged(newScene, newSubScene, oldScene, oldSubScene);
impl_reapplyCSS();
if (sceneChanged && !impl_isDirtyEmpty()) {
//Note: no need to remove from scene's dirty list
//Scene's is checking if the node's scene is correct
/* TODO: looks like an existing bug when a node is moved from one
* location to another, setScenes will be called twice by
* Parent.VetoableListDecorator onProposedChange and onChanged
* respectively. Removing the node and setting setScense(null,null)
* then adding it back to potentially the same scene. Causing the
* same node to being added twice to the same scene.
*/
addToSceneDirtyList();
}
if (newScene == null && peer != null) {
peer.release();
}
if (getParent() == null) {
// if we are the root we need to handle scene change
parentResolvedOrientationInvalidated();
}
if (sceneChanged) { scene.fireSuperValueChangedEvent(); }
}
final void setScenes(Scene newScene, SubScene newSubScene) {
Scene oldScene = sceneProperty().get();
if (newScene != oldScene || newSubScene != subScene) {
scene.set(newScene);
SubScene oldSubScene = subScene;
subScene = newSubScene;
invalidatedScenes(oldScene, oldSubScene);
if (this instanceof SubScene) { // TODO: find better solution
SubScene thisSubScene = (SubScene)this;
thisSubScene.getRoot().setScenes(newScene, thisSubScene);
}
}
}
final SubScene getSubScene() {
return subScene;
}
public final Scene getScene() {
return scene.get();
}
public final ReadOnlyObjectProperty sceneProperty() {
return scene.getReadOnlyProperty();
}
/**
* Exists for Parent and LightBase
*/
void scenesChanged(final Scene newScene, final SubScene newSubScene,
final Scene oldScene, final SubScene oldSubScene) { }
/**
* The id of this {@code Node}. This simple string identifier is useful for
* finding a specific Node within the scene graph. While the id of a Node
* should be unique within the scene graph, this uniqueness is not enforced.
* This is analogous to the "id" attribute on an HTML element
* (CSS ID Specification).
*
* For example, if a Node is given the id of "myId", then the lookup method can
* be used to find this node as follows: scene.lookup("#myId");.
*
*
* @defaultValue null
*/
private StringProperty id;
public final void setId(String value) {
idProperty().set(value);
}
//TODO: this is copied from the property in order to add the @return statement.
// We should have a better, general solution without the need to copy it.
/**
* The id of this {@code Node}. This simple string identifier is useful for
* finding a specific Node within the scene graph. While the id of a Node
* should be unique within the scene graph, this uniqueness is not enforced.
* This is analogous to the "id" attribute on an HTML element
* (CSS ID Specification).
*
* @return the id assigned to this {@code Node} using the {@code setId}
* method or {@code null}, if no id has been assigned.
* @defaultValue null
*/
public final String getId() {
return id == null ? null : id.get();
}
public final StringProperty idProperty() {
if (id == null) {
id = new StringPropertyBase() {
@Override
protected void invalidated() {
impl_reapplyCSS();
}
@Override
public Object getBean() {
return Node.this;
}
@Override
public String getName() {
return "id";
}
};
}
return id;
}
/**
* A list of String identifiers which can be used to logically group
* Nodes, specifically for an external style engine. This variable is
* analogous to the "class" attribute on an HTML element and, as such,
* each element of the list is a style class to which this Node belongs.
*
* @see CSS3 class selectors
* @defaultValue null
*/
private ObservableList styleClass = new TrackableObservableList() {
@Override
protected void onChanged(Change c) {
impl_reapplyCSS();
}
@Override
public String toString() {
if (size() == 0) {
return "";
} else if (size() == 1) {
return get(0);
} else {
StringBuilder buf = new StringBuilder();
for (int i = 0; i < size(); i++) {
buf.append(get(i));
if (i + 1 < size()) {
buf.append(' ');
}
}
return buf.toString();
}
}
};
@Override
public final ObservableList getStyleClass() {
return styleClass;
}
/**
* A string representation of the CSS style associated with this
* specific {@code Node}. This is analogous to the "style" attribute of an
* HTML element. Note that, like the HTML style attribute, this
* variable contains style properties and values and not the
* selector portion of a style rule.
* @defaultValue empty string
*/
private StringProperty style;
/**
* A string representation of the CSS style associated with this
* specific {@code Node}. This is analogous to the "style" attribute of an
* HTML element. Note that, like the HTML style attribute, this
* variable contains style properties and values and not the
* selector portion of a style rule.
* @param value The inline CSS style to use for this {@code Node}.
* {@code null} is implicitly converted to an empty String.
* @defaultValue empty string
*/
public final void setStyle(String value) {
styleProperty().set(value);
}
// TODO: javadoc copied from property for the sole purpose of providing a return tag
/**
* A string representation of the CSS style associated with this
* specific {@code Node}. This is analogous to the "style" attribute of an
* HTML element. Note that, like the HTML style attribute, this
* variable contains style properties and values and not the
* selector portion of a style rule.
* @defaultValue empty string
* @return The inline CSS style associated with this {@code Node}.
* If this {@code Node} does not have an inline style,
* an empty String is returned.
*/
public final String getStyle() {
return style == null ? "" : style.get();
}
public final StringProperty styleProperty() {
if (style == null) {
style = new StringPropertyBase("") {
@Override public void set(String value) {
// getStyle returns an empty string if the style property
// is null. To be consistent, getStyle should also return
// an empty string when the style property's value is null.
super.set((value != null) ? value : "");
}
@Override
protected void invalidated() {
if (getScene() == null) return;
// If the style has changed, then styles of this node
// and child nodes might be affected. So if the cssFlag
// is not already set to reapply or recalculate, make it so.
if (cssFlag != CssFlags.REAPPLY ||
cssFlag != CssFlags.RECALCULATE) {
cssFlag = CssFlags.RECALCULATE;
notifyParentsOfInvalidatedCSS();
}
}
@Override
public Object getBean() {
return Node.this;
}
@Override
public String getName() {
return "style";
}
};
}
return style;
}
/**
* Specifies whether this {@code Node} and any subnodes should be rendered
* as part of the scene graph. A node may be visible and yet not be shown
* in the rendered scene if, for instance, it is off the screen or obscured
* by another Node. Invisible nodes never receive mouse events or
* keyboard focus and never maintain keyboard focus when they become
* invisible.
*
* @defaultValue true
*/
private BooleanProperty visible;
public final void setVisible(boolean value) {
visibleProperty().set(value);
}
public final boolean isVisible() {
return visible == null ? true : visible.get();
}
public final BooleanProperty visibleProperty() {
if (visible == null) {
visible = new StyleableBooleanProperty(true) {
boolean oldValue = true;
@Override
protected void invalidated() {
if (oldValue != get()) {
impl_markDirty(DirtyBits.NODE_VISIBLE);
impl_geomChanged();
updateTreeVisible();
if (getClip() != null) {
getClip().updateTreeVisible();
}
if (getParent() != null) {
// notify the parent of the potential change in visibility
// of this node, since visibility affects bounds of the
// parent node
getParent().childVisibilityChanged(Node.this);
}
oldValue = get();
}
}
@Override
public CssMetaData getCssMetaData() {
return StyleableProperties.VISIBILITY;
}
@Override
public Object getBean() {
return Node.this;
}
@Override
public String getName() {
return "visible";
}
};
}
return visible;
}
public final void setCursor(Cursor value) {
cursorProperty().set(value);
}
public final Cursor getCursor() {
return (miscProperties == null) ? DEFAULT_CURSOR
: miscProperties.getCursor();
}
/**
* Defines the mouse cursor for this {@code Node} and subnodes. If null,
* then the cursor of the first parent node with a non-null cursor will be
* used. If no Node in the scene graph defines a cursor, then the cursor
* of the {@code Scene} will be used.
*
* @defaultValue null
*/
public final ObjectProperty cursorProperty() {
return getMiscProperties().cursorProperty();
}
/**
* Specifies how opaque (that is, solid) the {@code Node} appears. A Node
* with 0% opacity is fully translucent. That is, while it is still
* {@link #visibleProperty visible} and rendered, you generally won't be able to see it. The
* exception to this rule is when the {@code Node} is combined with a
* blending mode and blend effect in which case a translucent Node may still
* have an impact in rendering. An opacity of 50% will render the node as
* being 50% transparent.
*
* A {@link #visibleProperty visible} node with any opacity setting still receives mouse
* events and can receive keyboard focus. For example, if you want to have
* a large invisible rectangle overlay all {@code Node}s in the scene graph
* in order to intercept mouse events but not be visible to the user, you could
* create a large {@code Rectangle} that had an opacity of 0%.
*
* Opacity is specified as a value between 0 and 1. Values less than 0 are
* treated as 0, values greater than 1 are treated as 1.
*
* On some platforms ImageView might not support opacity variable.
*
*
* There is a known limitation of mixing opacity < 1.0 with a 3D Transform.
* Opacity/Blending is essentially a 2D image operation. The result of
* an opacity < 1.0 set on a {@link Group} node with 3D transformed children
* will cause its children to be rendered in order without Z-buffering
* applied between those children.
*
* @defaultValue 1.0
*/
private DoubleProperty opacity;
public final void setOpacity(double value) {
opacityProperty().set(value);
}
public final double getOpacity() {
return opacity == null ? 1 : opacity.get();
}
public final DoubleProperty opacityProperty() {
if (opacity == null) {
opacity = new StyleableDoubleProperty(1) {
@Override
public void invalidated() {
impl_markDirty(DirtyBits.NODE_OPACITY);
}
@Override
public CssMetaData getCssMetaData() {
return StyleableProperties.OPACITY;
}
@Override
public Object getBean() {
return Node.this;
}
@Override
public String getName() {
return "opacity";
}
};
}
return opacity;
}
/**
* The {@link javafx.scene.effect.BlendMode} used to blend this individual node
* into the scene behind it. If this node happens to be a Group then all of the
* children will be composited individually into a temporary buffer using their
* own blend modes and then that temporary buffer will be composited into the
* scene using the specified blend mode.
*
* A value of {@code null} is treated as pass-though this means no effect on a
* parent such as a Group and the equivalent of SRC_OVER for a single Node.
*
* @defaultValue null
*/
private javafx.beans.property.ObjectProperty blendMode;
public final void setBlendMode(BlendMode value) {
blendModeProperty().set(value);
}
public final BlendMode getBlendMode() {
return blendMode == null ? null : blendMode.get();
}
public final ObjectProperty blendModeProperty() {
if (blendMode == null) {
blendMode = new StyleableObjectProperty(null) {
@Override public void invalidated() {
impl_markDirty(DirtyBits.NODE_BLENDMODE);
}
@Override
public CssMetaData getCssMetaData() {
return StyleableProperties.BLEND_MODE;
}
@Override
public Object getBean() {
return Node.this;
}
@Override
public String getName() {
return "blendMode";
}
};
}
return blendMode;
}
public final void setClip(Node value) {
clipProperty().set(value);
}
public final Node getClip() {
return (miscProperties == null) ? DEFAULT_CLIP
: miscProperties.getClip();
}
/**
* Specifies a {@code Node} to use to define the the clipping shape for this
* Node. This clipping Node is not a child of this {@code Node} in the scene
* graph sense. Rather, it is used to define the clip for this {@code Node}.
*
* For example, you can use an {@link javafx.scene.image.ImageView} Node as
* a mask to represent the Clip. Or you could use one of the geometric shape
* Nodes such as {@link javafx.scene.shape.Rectangle} or
* {@link javafx.scene.shape.Circle}. Or you could use a
* {@link javafx.scene.text.Text} node to represent the Clip.
*
* See the class documentation for {@link Node} for scene graph structure
* restrictions on setting the clip. If these restrictions are violated by
* a change to the clip variable, the change is ignored and the
* previous value of the clip variable is restored.
*
* Note that this is a conditional feature. See
* {@link javafx.application.ConditionalFeature#SHAPE_CLIP ConditionalFeature.SHAPE_CLIP}
* for more information.
*
* There is a known limitation of mixing Clip with a 3D Transform.
* Clipping is essentially a 2D image operation. The result of
* a Clip set on a {@link Group} node with 3D transformed children
* will cause its children to be rendered in order without Z-buffering
* applied between those children.
*
* @defaultValue null
*/
public final ObjectProperty clipProperty() {
return getMiscProperties().clipProperty();
}
private com.sun.javafx.sg.PGNode.CacheHint toPGCacheHint(CacheHint ch) {
if (ch == CacheHint.DEFAULT) {
return PGNode.CacheHint.DEFAULT;
} else if (ch == CacheHint.SCALE) {
return PGNode.CacheHint.SCALE;
} else if (ch == CacheHint.ROTATE) {
return PGNode.CacheHint.ROTATE;
} else if (ch == CacheHint.SCALE_AND_ROTATE) {
return PGNode.CacheHint.SCALE_AND_ROTATE;
} else if (ch == CacheHint.SPEED) {
return PGNode.CacheHint.SCALE_AND_ROTATE;
} else if (ch == CacheHint.QUALITY) {
return PGNode.CacheHint.DEFAULT;
} else { // impossible
return PGNode.CacheHint.DEFAULT;
}
}
public final void setCache(boolean value) {
cacheProperty().set(value);
}
public final boolean isCache() {
return (miscProperties == null) ? DEFAULT_CACHE
: miscProperties.isCache();
}
/**
* A performance hint to the system to indicate that this {@code Node}
* should be cached as a bitmap. Rendering a bitmap representation of a node
* will be faster than rendering primitives in many cases, especially in the
* case of primitives with effects applied (such as a blur). However, it
* also increases memory usage. This hint indicates whether that trade-off
* (increased memory usage for increased performance) is worthwhile. Also
* note that on some platforms such as GPU accelerated platforms there is
* little benefit to caching Nodes as bitmaps when blurs and other effects
* are used since they are very fast to render on the GPU.
*
* The {@link #cacheHintProperty} variable provides additional options for enabling
* more aggressive bitmap caching.
*
*
* Caching may be disabled for any node that has a 3D transform on itself,
* any of its ancestors, or any of its descendants.
*
* @see #cacheHintProperty
* @defaultValue false
*/
public final BooleanProperty cacheProperty() {
return getMiscProperties().cacheProperty();
}
public final void setCacheHint(CacheHint value) {
cacheHintProperty().set(value);
}
public final CacheHint getCacheHint() {
return (miscProperties == null) ? DEFAULT_CACHE_HINT
: miscProperties.getCacheHint();
}
/**
* Additional hint for controlling bitmap caching.
*
* Under certain circumstances, such as animating nodes that are very
* expensive to render, it is desirable to be able to perform
* transformations on the node without having to regenerate the cached
* bitmap. An option in such cases is to perform the transforms on the
* cached bitmap itself.
*
* This technique can provide a dramatic improvement to animation
* performance, though may also result in a reduction in visual quality.
* The {@code cacheHint} variable provides a hint to the system about how
* and when that trade-off (visual quality for animation performance) is
* acceptable.
*
* It is possible to enable the cacheHint only at times when your node is
* animating. In this way, expensive nodes can appear on screen with full
* visual quality, yet still animate smoothly.
*
* Example:
*
expensiveNode.setCache(true);
expensiveNode.setCacheHint(CacheHint.QUALITY);
...
// Do an animation
expensiveNode.setCacheHint(CacheHint.SPEED);
new Timeline(
new KeyFrame(Duration.seconds(2),
new KeyValue(expensiveNode.scaleXProperty(), 2.0),
new KeyValue(expensiveNode.scaleYProperty(), 2.0),
new KeyValue(expensiveNode.rotateProperty(), 360),
new KeyValue(expensiveNode.cacheHintProperty(), CacheHint.QUALITY)
)
).play();
*
* Note that {@code cacheHint} is only a hint to the system. Depending on
* the details of the node or the transform, this hint may be ignored.
*
*
* If {@code Node.cache} is false, cacheHint is ignored.
* Caching may be disabled for any node that has a 3D transform on itself,
* any of its ancestors, or any of its descendants.
*
* @see #cacheProperty
* @defaultValue CacheHint.DEFAULT
*/
public final ObjectProperty cacheHintProperty() {
return getMiscProperties().cacheHintProperty();
}
public final void setEffect(Effect value) {
effectProperty().set(value);
}
public final Effect getEffect() {
return (miscProperties == null) ? DEFAULT_EFFECT
: miscProperties.getEffect();
}
/**
* Specifies an effect to apply to this {@code Node}.
*
* Note that this is a conditional feature. See
* {@link javafx.application.ConditionalFeature#EFFECT ConditionalFeature.EFFECT}
* for more information.
*
*
* There is a known limitation of mixing Effect with a 3D Transform. Effect is
* essentially a 2D image operation. The result of an Effect set on
* a {@link Group} node with 3D transformed children will cause its children
* to be rendered in order without Z-buffering applied between those
* children.
*
* @defaultValue null
*/
public final ObjectProperty effectProperty() {
return getMiscProperties().effectProperty();
}
public final void setDepthTest(DepthTest value) {
depthTestProperty().set(value);
}
public final DepthTest getDepthTest() {
return (miscProperties == null) ? DEFAULT_DEPTH_TEST
: miscProperties.getDepthTest();
}
/**
* Indicates whether depth testing is used when rendering this node.
* If the depthTest flag is {@code DepthTest.DISABLE}, then depth testing
* is disabled for this node.
* If the depthTest flag is {@code DepthTest.ENABLE}, then depth testing
* is enabled for this node.
* If the depthTest flag is {@code DepthTest.INHERIT}, then depth testing
* is enabled for this node if it is enabled for the parent node or the
* parent node is null.
*
* The depthTest flag is only used when the depthBuffer flag for
* the {@link Scene} is true (meaning that the
* {@link Scene} has an associated depth buffer)
*
* Depth test comparison is only done among nodes with depthTest enabled.
* A node with depthTest disabled does not read, test, or write the depth buffer,
* that is to say its Z value will not be considered for depth testing
* with other nodes.
*
* Note that this is a conditional feature. See
* {@link javafx.application.ConditionalFeature#SCENE3D ConditionalFeature.SCENE3D}
* for more information.
*
* See the constructor in Scene with depthBuffer as one of its input
* arguments.
*
* @see javafx.scene.Scene
* @defaultValue INHERIT
*/
public final ObjectProperty depthTestProperty() {
return getMiscProperties().depthTestProperty();
}
/**
* Recompute the derived depth test flag. This flag is true
* if the depthTest flag for this node is true and the
* depth test flag for each ancestor node is true. It is false
* otherwise. Equivalently, the derived depth flag is true
* if the depthTest flag for this node is true and the derivedDepthTest
* flag for its parent is true.
*/
void computeDerivedDepthTest() {
boolean newDDT;
if (getDepthTest() == DepthTest.INHERIT) {
if (getParent() != null) {
newDDT = getParent().isDerivedDepthTest();
} else {
newDDT = true;
}
} else if (getDepthTest() == DepthTest.ENABLE) {
newDDT = true;
} else {
newDDT = false;
}
if (isDerivedDepthTest() != newDDT) {
impl_markDirty(DirtyBits.NODE_DEPTH_TEST);
setDerivedDepthTest(newDDT);
}
}
// This is the derived depthTest value to pass to PG level
private boolean derivedDepthTest = true;
void setDerivedDepthTest(boolean value) {
derivedDepthTest = value;
}
boolean isDerivedDepthTest() {
return derivedDepthTest;
}
public final void setDisable(boolean value) {
disableProperty().set(value);
}
public final boolean isDisable() {
return (miscProperties == null) ? DEFAULT_DISABLE
: miscProperties.isDisable();
}
/**
* Defines the individual disabled state of this {@code Node}. Setting
* {@code disable} to true will cause this {@code Node} and any subnodes to
* become disabled. This property should be used only to set the disabled
* state of a {@code Node}. For querying the disabled state of a
* {@code Node}, the {@link #disabledProperty disabled} property should instead be used,
* since it is possible that a {@code Node} was disabled as a result of an
* ancestor being disabled even if the individual {@code disable} state on
* this {@code Node} is {@code false}.
*
* @defaultValue false
*/
public final BooleanProperty disableProperty() {
return getMiscProperties().disableProperty();
}
/**************************************************************************
* *
*
* *
*************************************************************************/
/**
* Defines how the picking computation is done for this node when
* triggered by a {@code MouseEvent} or a {@code contains} function call.
*
* If {@code pickOnBounds} is true, then picking is computed by
* intersecting with the bounds of this node, else picking is computed
* by intersecting with the geometric shape of this node.
*
* @defaultValue false
*/
private BooleanProperty pickOnBounds;
public final void setPickOnBounds(boolean value) {
pickOnBoundsProperty().set(value);
}
public final boolean isPickOnBounds() {
return pickOnBounds == null ? false : pickOnBounds.get();
}
public final BooleanProperty pickOnBoundsProperty() {
if (pickOnBounds == null) {
pickOnBounds = new SimpleBooleanProperty(this, "pickOnBounds");
}
return pickOnBounds;
}
/**
* Indicates whether or not this {@code Node} is disabled. A {@code Node}
* will become disabled if {@link #disableProperty disable} is set to {@code true} on either
* itself or one of its ancestors in the scene graph.
*
* A disabled {@code Node} should render itself differently to indicate its
* disabled state to the user.
* Such disabled rendering is dependent on the implementation of the
* {@code Node}. The shape classes contained in {@code javafx.scene.shape}
* do not implement such rendering by default, therefore applications using
* shapes for handling input must implement appropriate disabled rendering
* themselves. The user-interface controls defined in
* {@code javafx.scene.control} will implement disabled-sensitive rendering,
* however.
*
* A disabled {@code Node} does not receive mouse or key events.
*
* @defaultValue false
*/
private ReadOnlyBooleanWrapper disabled;
protected final void setDisabled(boolean value) {
disabledPropertyImpl().set(value);
}
public final boolean isDisabled() {
return disabled == null ? false : disabled.get();
}
public final ReadOnlyBooleanProperty disabledProperty() {
return disabledPropertyImpl().getReadOnlyProperty();
}
private ReadOnlyBooleanWrapper disabledPropertyImpl() {
if (disabled == null) {
disabled = new ReadOnlyBooleanWrapper() {
@Override
protected void invalidated() {
pseudoClassStateChanged(DISABLED_PSEUDOCLASS_STATE, get());
updateCanReceiveFocus();
focusSetDirty(getScene());
}
@Override
public Object getBean() {
return Node.this;
}
@Override
public String getName() {
return "disabled";
}
};
}
return disabled;
}
private void updateDisabled() {
boolean isDisabled = isDisable();
if (!isDisabled) {
isDisabled = getParent() != null ? getParent().isDisabled() :
getSubScene() != null && getSubScene().isDisabled();
}
setDisabled(isDisabled);
if (this instanceof SubScene) {
((SubScene)this).getRoot().setDisabled(isDisabled);
}
}
/**
* Finds this {@code Node}, or the first sub-node, based on the given CSS selector.
* If this node is a {@code Parent}, then this function will traverse down
* into the branch until it finds a match. If more than one sub-node matches the
* specified selector, this function returns the first of them.
*
* For example, if a Node is given the id of "myId", then the lookup method can
* be used to find this node as follows: scene.lookup("#myId");.
*
*
* @param selector The css selector of the node to find
* @return The first node, starting from this {@code Node}, which matches
* the CSS {@code selector}, null if none is found.
*/
public Node lookup(String selector) {
if (selector == null) return null;
Selector s = Selector.createSelector(selector);
return s != null && s.applies(this) ? this : null;
}
/**
* Finds all {@code Node}s, including this one and any children, which match
* the given CSS selector. If no matches are found, an empty unmodifiable set is
* returned. The set is explicitly unordered.
*
* @param selector The css selector of the nodes to find
* @return All nodes, starting from and including this {@code Node}, which match
* the CSS {@code selector}. The returned set is always unordered and
* unmodifiable, and never null.
*/
public Set lookupAll(String selector) {
final Selector s = Selector.createSelector(selector);
final Set empty = Collections.emptySet();
if (s == null) return empty;
List results = lookupAll(s, null);
return results == null ? empty : new UnmodifiableListSet(results);
}
/**
* Used by Node and Parent for traversing the tree and adding all nodes which
* match the given selector.
*
* @param selector The Selector. This will never be null.
* @param results The results. This will never be null.
*/
List lookupAll(Selector selector, List results) {
if (selector.applies(this)) {
// Lazily create the set to reduce some trash.
if (results == null) {
results = new LinkedList();
}
results.add(this);
}
return results;
}
/**
* Moves this {@code Node} to the back of its sibling nodes in terms of
* z-order. This is accomplished by moving this {@code Node} to the
* first position in its parent's {@code content} ObservableList.
* This function has no effect if this {@code Node} is not part of a group.
*/
public void toBack() {
if (getParent() != null) {
getParent().impl_toBack(this);
}
}
/**
* Moves this {@code Node} to the front of its sibling nodes in terms of
* z-order. This is accomplished by moving this {@code Node} to the
* last position in its parent's {@code content} ObservableList.
* This function has no effect if this {@code Node} is not part of a group.
*/
public void toFront() {
if (getParent() != null) {
getParent().impl_toFront(this);
}
}
// TODO: need to verify whether this is OK to do starting from a node in
// the scene graph other than the root.
private void doCSSPass() {
if (this.cssFlag != CssFlags.CLEAN) {
// The dirty bit isn't checked but we must ensure it is cleared.
// The cssFlag is set to clean in either Node.processCSS or
// Node.impl_processCSS(boolean)
// Don't clear the dirty bit in case it will cause problems
// with a full CSS pass on the scene.
// TODO: is this the right thing to do?
// this.impl_clearDirty(com.sun.javafx.scene.DirtyBits.NODE_CSS);
this.processCSS();
}
}
/**
* Recursive function for synchronizing a node and all descendents
*/
private static void syncAll(Node node) {
node.impl_syncPGNode();
if (node instanceof Parent) {
Parent p = (Parent) node;
final int childrenCount = p.getChildren().size();
for (int i = 0; i < childrenCount; i++) {
Node n = p.getChildren().get(i);
if (n != null) {
syncAll(n);
}
}
}
if (node.getClip() != null) {
syncAll(node.getClip());
}
}
private void doLayoutPass() {
if (this instanceof Parent) {
// TODO: As an optimization we only need to layout those dirty
// roots that are descendents of this node
Parent p = (Parent)this;
for (int i = 0; i < 3; i++) {
p.layout();
}
}
}
private void doCSSLayoutSyncForSnapshot() {
doCSSPass();
doLayoutPass();
updateBounds();
Scene.impl_setAllowPGAccess(true);
syncAll(this);
Scene.impl_setAllowPGAccess(false);
}
private WritableImage doSnapshot(SnapshotParameters params, WritableImage img) {
if (getScene() != null) {
getScene().doCSSLayoutSyncForSnapshot(this);
} else {
doCSSLayoutSyncForSnapshot();
}
BaseTransform transform = BaseTransform.IDENTITY_TRANSFORM;
if (params.getTransform() != null) {
Affine3D tempTx = new Affine3D();
params.getTransform().impl_apply(tempTx);
transform = tempTx;
}
double x;
double y;
double w;
double h;
Rectangle2D viewport = params.getViewport();
if (viewport != null) {
// Use the specified viewport
x = viewport.getMinX();
y = viewport.getMinY();
w = viewport.getWidth();
h = viewport.getHeight();
} else {
// Get the bounds in parent of this node, transformed by the
// specified transform.
BaseBounds tempBounds = TempState.getInstance().bounds;
tempBounds = getTransformedBounds(tempBounds, transform);
x = tempBounds.getMinX();
y = tempBounds.getMinY();
w = tempBounds.getWidth();
h = tempBounds.getHeight();
}
WritableImage result = Scene.doSnapshot(getScene(), x, y, w, h,
this, transform, params.isDepthBufferInternal(),
params.getFill(), params.getEffectiveCamera(), img);
return result;
}
/**
* Takes a snapshot of this node and returns the rendered image when
* it is ready.
* CSS and layout processing will be done for the node, and any of its
* children, prior to rendering it.
* The entire destination image is cleared to the fill {@code Paint}
* specified by the SnapshotParameters. This node is then rendered to
* the image.
* If the viewport specified by the SnapshotParameters is null, the
* upper-left pixel of the {@code boundsInParent} of this
* node, after first applying the transform specified by the
* SnapshotParameters,
* is mapped to the upper-left pixel (0,0) in the image.
* If a non-null viewport is specified,
* the upper-left pixel of the viewport is mapped to upper-left pixel
* (0,0) in the image.
* In both cases, this mapping to (0,0) of the image is done with an integer
* translation. The portion of the node that is outside of the rendered
* image will be clipped by the image.
*
*
* When taking a snapshot of a scene that is being animated, either
* explicitly by the application or implicitly (such as chart animation),
* the snapshot will be rendered based on the state of the scene graph at
* the moment the snapshot is taken and will not reflect any subsequent
* animation changes.
*
*
*
* NOTE: In order for CSS and layout to function correctly, the node
* must be part of a Scene (the Scene may be attached to a Stage, but need
* not be).
*
*
* @param params the snapshot parameters containing attributes that
* will control the rendering. If the SnapshotParameters object is null,
* then the Scene's attributes will be used if this node is part of a scene,
* or default attributes will be used if this node is not part of a scene.
*
* @param image the writable image that will be used to hold the rendered node.
* It may be null in which case a new WritableImage will be constructed.
* The new image is constructed using integer width and
* height values that are derived either from the transformed bounds of this
* Node or from the size of the viewport as specified in the
* SnapShotParameters. These integer values are chosen such that the image
* will wholly contain the bounds of this Node or the specified viewport.
* If the image is non-null, the node will be rendered into the
* existing image.
* In this case, the width and height of the image determine the area
* that is rendered instead of the width and height of the bounds or
* viewport.
*
* @throws IllegalStateException if this method is called on a thread
* other than the JavaFX Application Thread.
*
* @return the rendered image
* @since JavaFX 2.2
*/
public WritableImage snapshot(SnapshotParameters params, WritableImage image) {
Toolkit.getToolkit().checkFxUserThread();
if (params == null) {
params = new SnapshotParameters();
Scene s = getScene();
if (s != null) {
params.setCamera(s.getEffectiveCamera());
params.setDepthBuffer(s.isDepthBufferInteral());
params.setFill(s.getFill());
}
}
return doSnapshot(params, image);
}
/**
* Takes a snapshot of this node at the next frame and calls the
* specified callback method when the image is ready.
* CSS and layout processing will be done for the node, and any of its
* children, prior to rendering it.
* The entire destination image is cleared to the fill {@code Paint}
* specified by the SnapshotParameters. This node is then rendered to
* the image.
* If the viewport specified by the SnapshotParameters is null, the
* upper-left pixel of the {@code boundsInParent} of this
* node, after first applying the transform specified by the
* SnapshotParameters,
* is mapped to the upper-left pixel (0,0) in the image.
* If a non-null viewport is specified,
* the upper-left pixel of the viewport is mapped to upper-left pixel
* (0,0) in the image.
* In both cases, this mapping to (0,0) of the image is done with an integer
* translation. The portion of the node that is outside of the rendered
* image will be clipped by the image.
*
*
* This is an asynchronous call, which means that other
* events or animation might be processed before the node is rendered.
* If any such events modify the node, or any of its children, that
* modification will be reflected in the rendered image (just like it
* will also be reflected in the frame rendered to the Stage, if this node
* is part of a live scene graph).
*
*
*
* When taking a snapshot of a node that is being animated, either
* explicitly by the application or implicitly (such as chart animation),
* the snapshot will be rendered based on the state of the scene graph at
* the moment the snapshot is taken and will not reflect any subsequent
* animation changes.
*
*
*
* NOTE: In order for CSS and layout to function correctly, the node
* must be part of a Scene (the Scene may be attached to a Stage, but need
* not be).
*
*
* @param callback a class whose call method will be called when the image
* is ready. The SnapshotResult that is passed into the call method of
* the callback will contain the rendered image, the source node
* that was rendered, and a copy of the SnapshotParameters.
* The callback parameter must not be null.
*
* @param params the snapshot parameters containing attributes that
* will control the rendering. If the SnapshotParameters object is null,
* then the Scene's attributes will be used if this node is part of a scene,
* or default attributes will be used if this node is not part of a scene.
*
* @param image the writable image that will be used to hold the rendered node.
* It may be null in which case a new WritableImage will be constructed.
* The new image is constructed using integer width and
* height values that are derived either from the transformed bounds of this
* Node or from the size of the viewport as specified in the
* SnapShotParameters. These integer values are chosen such that the image
* will wholly contain the bounds of this Node or the specified viewport.
* If the image is non-null, the node will be rendered into the
* existing image.
* In this case, the width and height of the image determine the area
* that is rendered instead of the width and height of the bounds or
* viewport.
*
* @throws IllegalStateException if this method is called on a thread
* other than the JavaFX Application Thread.
*
* @throws NullPointerException if the callback parameter is null.
* @since JavaFX 2.2
*/
public void snapshot(Callback callback,
SnapshotParameters params, WritableImage image) {
Toolkit.getToolkit().checkFxUserThread();
if (callback == null) {
throw new NullPointerException("The callback must not be null");
}
if (params == null) {
params = new SnapshotParameters();
Scene s = getScene();
if (s != null) {
params.setCamera(s.getEffectiveCamera());
params.setDepthBuffer(s.isDepthBufferInteral());
params.setFill(s.getFill());
}
} else {
params = params.copy();
}
final SnapshotParameters theParams = params;
final Callback theCallback = callback;
final WritableImage theImage = image;
// Create a deferred runnable that will be run from a pulse listener
// that is called after all of the scenes have been synced but before
// any of them have been rendered.
final Runnable snapshotRunnable = new Runnable() {
@Override public void run() {
WritableImage img = doSnapshot(theParams, theImage);
SnapshotResult result = new SnapshotResult(img, Node.this, theParams);
// System.err.println("Calling snapshot callback");
try {
Void v = theCallback.call(result);
} catch (Throwable th) {
System.err.println("Exception in snapshot callback");
th.printStackTrace(System.err);
}
}
};
// System.err.println("Schedule a snapshot in the future");
Scene.addSnapshotRunnable(snapshotRunnable);
}
/* ************************************************************************
* *
*
* *
*************************************************************************/
public final void setOnDragEntered(
EventHandler value) {
onDragEnteredProperty().set(value);
}
public final EventHandler getOnDragEntered() {
return (eventHandlerProperties == null)
? null : eventHandlerProperties.getOnDragEntered();
}
/**
* Defines a function to be called when drag gesture
* enters this {@code Node}.
*/
public final ObjectProperty>
onDragEnteredProperty() {
return getEventHandlerProperties().onDragEnteredProperty();
}
public final void setOnDragExited(
EventHandler value) {
onDragExitedProperty().set(value);
}
public final EventHandler getOnDragExited() {
return (eventHandlerProperties == null)
? null : eventHandlerProperties.getOnDragExited();
}
/**
* Defines a function to be called when drag gesture
* exits this {@code Node}.
*/
public final ObjectProperty>
onDragExitedProperty() {
return getEventHandlerProperties().onDragExitedProperty();
}
public final void setOnDragOver(
EventHandler value) {
onDragOverProperty().set(value);
}
public final EventHandler getOnDragOver() {
return (eventHandlerProperties == null)
? null : eventHandlerProperties.getOnDragOver();
}
/**
* Defines a function to be called when drag gesture progresses within
* this {@code Node}.
*/
public final ObjectProperty>
onDragOverProperty() {
return getEventHandlerProperties().onDragOverProperty();
}
// Do we want DRAG_TRANSFER_MODE_CHANGED event?
// public final void setOnDragTransferModeChanged(
// EventHandler value) {
// onDragTransferModeChangedProperty().set(value);
// }
//
// public final EventHandler getOnDragTransferModeChanged() {
// return (eventHandlerProperties == null)
// ? null : eventHandlerProperties.getOnDragTransferModeChanged();
// }
//
// /**
// * Defines a function to be called this {@code Node} if it is a potential
// * drag-and-drop target when the user takes action to change the intended
// * {@code TransferMode}.
// * The user can change the intended {@link TransferMode} by holding down
// * or releasing key modifiers.
// */
// public final ObjectProperty>
// onDragTransferModeChangedProperty() {
// return getEventHandlerProperties().onDragTransferModeChangedProperty();
// }
public final void setOnDragDropped(
EventHandler value) {
onDragDroppedProperty().set(value);
}
public final EventHandler getOnDragDropped() {
return (eventHandlerProperties == null)
? null : eventHandlerProperties.getOnDragDropped();
}
/**
* Defines a function to be called when the mouse button is released
* on this {@code Node} during drag and drop gesture. Transfer of data from
* the {@link DragEvent}'s {@link DragEvent#dragboard dragboard} should
* happen in this function.
*/
public final ObjectProperty>
onDragDroppedProperty() {
return getEventHandlerProperties().onDragDroppedProperty();
}
public final void setOnDragDone(
EventHandler value) {
onDragDoneProperty().set(value);
}
public final EventHandler getOnDragDone() {
return (eventHandlerProperties == null)
? null : eventHandlerProperties.getOnDragDone();
}
/**
* Defines a function to be called when this {@code Node} is a
* drag and drop gesture source after its data has
* been dropped on a drop target. The {@code transferMode} of the
* event shows what just happened at the drop target.
* If {@code transferMode} has the value {@code MOVE}, then the source can
* clear out its data. Clearing the source's data gives the appropriate
* appearance to a user that the data has been moved by the drag and drop
* gesture. A {@code transferMode} that has the value {@code NONE}
* indicates that no data was transferred during the drag and drop gesture.
*/
public final ObjectProperty>
onDragDoneProperty() {
return getEventHandlerProperties().onDragDoneProperty();
}
/**
* Confirms a potential drag and drop gesture that is recognized over this
* {@code Node}.
* Can be called only from a DRAG_DETECTED event handler. The returned
* {@link Dragboard} is used to transfer data during
* the drag and drop gesture. Placing this {@code Node}'s data on the
* {@link Dragboard} also identifies this {@code Node} as the source of
* the drag and drop gesture.
* More detail about drag and drop gestures is described in the overivew
* of {@link DragEvent}.
*
* @see DragEvent
* @param transferModes The supported {@code TransferMode}(s) of this {@code Node}
* @return A {@code Dragboard} to place this {@code Node}'s data on
* @throws IllegalStateException if drag and drop cannot be started at this
* moment (it's called outside of {@code DRAG_DETECTED} event handling or
* this node is not in scene).
*/
public Dragboard startDragAndDrop(TransferMode... transferModes) {
if (getScene() != null) {
return getScene().startDragAndDrop(this, transferModes);
}
throw new IllegalStateException("Cannot start drag and drop on node "
+ "that is not in scene");
}
/**
* Starts a full press-drag-release gesture with this node as gesture
* source. This method can be called only from a {@code DRAG_DETECTED} mouse
* event handler. More detail about dragging gestures can be found
* in the overview of {@link MouseEvent} and {@link MouseDragEvent}.
*
* @see MouseEvent
* @see MouseDragEvent
* @throws IllegalStateException if the full press-drag-release gesture
* cannot be started at this moment (it's called outside of
* {@code DRAG_DETECTED} event handling or this node is not in scene).
* @since JavaFX 2.1
*/
public void startFullDrag() {
if (getScene() != null) {
getScene().startFullDrag(this);
return;
}
throw new IllegalStateException("Cannot start full drag on node "
+ "that is not in scene");
}
////////////////////////////
// Private Implementation
////////////////////////////
/**
* If this Node is being used as the clip of another Node, that other node
* is referred to as the clipParent. If the boundsInParent of this Node
* changes, it must update the clipParent's bounds as well.
*/
private Node clipParent;
// Use a getter function instead of giving clipParent package access,
// so that clipParent doesn't get turned into a Location.
final Node getClipParent() {
return clipParent;
}
/**
* Determines whether this node is connected anywhere in the scene graph.
*/
boolean isConnected() {
// don't need to check scene, because if scene is non-null
// parent must also be non-null
return getParent() != null || clipParent != null;
}
/**
* Tests whether creating a parent-child relationship between these
* nodes would cause a cycle. The parent relationship includes not only
* the "real" parent (child of Group) but also the clipParent.
*/
boolean wouldCreateCycle(Node parent, Node child) {
if (child != null && child.getClip() == null && (!(child instanceof Parent))) {
return false;
}
Node n = parent;
while (n != child) {
if (n.getParent() != null) {
n = n.getParent();
} else if (n.getSubScene() != null) {
n = n.getSubScene();
} else if (n.clipParent != null) {
n = n.clipParent;
} else {
return false;
}
}
return true;
}
/**
* The peer node created by the graphics Toolkit/Pipeline implementation
*/
private PGNode peer;
/**
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
@SuppressWarnings("CallToPrintStackTrace")
public PGNode impl_getPGNode() {
if (Utils.assertionEnabled()) {
// Assertion checking code
if (getScene() != null && !Scene.isPGAccessAllowed()) {
java.lang.System.err.println();
java.lang.System.err.println("*** unexpected PG access");
java.lang.Thread.dumpStack();
}
}
if (peer == null) {
//if (PerformanceTracker.isLoggingEnabled()) {
// PerformanceTracker.logEvent("Creating PGNode for [{this}, id=\"{id}\"]");
//}
peer = impl_createPGNode();
//if (PerformanceTracker.isLoggingEnabled()) {
// PerformanceTracker.logEvent("PGNode created");
//}
}
return peer;
}
/**
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
protected abstract PGNode impl_createPGNode();
/***************************************************************************
* *
* Initialization *
* *
* To Note limit the number of bounds computations and improve startup *
* performance. *
* *
**************************************************************************/
/**
* Creates a new instance of Node.
*/
protected Node() {
//if (PerformanceTracker.isLoggingEnabled()) {
// PerformanceTracker.logEvent("Node.init for [{this}, id=\"{id}\"]");
//}
setDirty();
updateTreeVisible();
//if (PerformanceTracker.isLoggingEnabled()) {
// PerformanceTracker.logEvent("Node.postinit " +
// "for [{this}, id=\"{id}\"] finished");
//}
}
/***************************************************************************
* *
* Layout related APIs. *
* *
**************************************************************************/
/**
* Defines whether or not this node's layout will be managed by it's parent.
* If the node is managed, it's parent will factor the node's geometry
* into its own preferred size and {@link #layoutBoundsProperty layoutBounds}
* calculations and will lay it
* out during the scene's layout pass. If a managed node's layoutBounds
* changes, it will automatically trigger relayout up the scene-graph
* to the nearest layout root (which is typically the scene's root node).
*
* If the node is unmanaged, its parent will ignore the child in both preferred
* size computations and layout. Changes in layoutBounds will not trigger
* relayout above it. If an unmanaged node is of type {@link javafx.scene.Parent Parent},
* it will act as a "layout root", meaning that calls to {@link Parent#requestLayout()}
* beneath it will cause only the branch rooted by the node to be relayed out,
* thereby isolating layout changes to that root and below. It's the application's
* responsibility to set the size and position of an unmanaged node.
*
* By default all nodes are managed.
*
*
* @see #isResizable()
* @see #layoutBoundsProperty()
* @see Parent#requestLayout()
*
*/
private BooleanProperty managed;
public final void setManaged(boolean value) {
managedProperty().set(value);
}
public final boolean isManaged() {
return managed == null ? true : managed.get();
}
public final BooleanProperty managedProperty() {
if (managed == null) {
managed = new BooleanPropertyBase(true) {
@Override
protected void invalidated() {
final Parent parent = getParent();
if (parent != null) {
parent.managedChildChanged();
}
notifyManagedChanged();
}
@Override
public Object getBean() {
return Node.this;
}
@Override
public String getName() {
return "managed";
}
};
}
return managed;
}
/**
* Called whenever the "managed" flag has changed. This is only
* used by Parent as an optimization to keep track of whether a
* Parent node is a layout root or not.
*/
void notifyManagedChanged() { }
/**
* Defines the x coordinate of the translation that is added to this {@code Node}'s
* transform for the purpose of layout. The value should be computed as the
* offset required to adjust the position of the node from its current
* {@link #layoutBoundsProperty() layoutBounds minX} position (which might not be 0) to the desired location.
*
* For example, if {@code textnode} should be positioned at {@code finalX}
*
* textnode.setLayoutX(finalX - textnode.getLayoutBounds().getMinX());
*
* Failure to subtract {@code layoutBounds minX} may result in misplacement
* of the node. The {@link #relocate(double, double) relocate(x, y)} method will automatically do the
* correct computation and should generally be used over setting layoutX directly.
*
* The node's final translation will be computed as {@code layoutX} + {@link #translateXProperty translateX},
* where {@code layoutX} establishes the node's stable position
* and {@code translateX} optionally makes dynamic adjustments to that
* position.
*
* If the node is managed and has a {@link javafx.scene.layout.Region}
* as its parent, then the layout region will set {@code layoutX} according to its
* own layout policy. If the node is unmanaged or parented by a {@link Group},
* then the application may set {@code layoutX} directly to position it.
*
* @see #relocate(double, double)
* @see #layoutBoundsProperty()
*
*/
private DoubleProperty layoutX;
public final void setLayoutX(double value) {
layoutXProperty().set(value);
}
public final double getLayoutX() {
return layoutX == null ? 0.0 : layoutX.get();
}
public final DoubleProperty layoutXProperty() {
if (layoutX == null) {
layoutX = new DoublePropertyBase(0.0) {
@Override
protected void invalidated() {
impl_transformsChanged();
}
@Override
public Object getBean() {
return Node.this;
}
@Override
public String getName() {
return "layoutX";
}
};
}
return layoutX;
}
/**
* Defines the y coordinate of the translation that is added to this {@code Node}'s
* transform for the purpose of layout. The value should be computed as the
* offset required to adjust the position of the node from its current
* {@link #layoutBoundsProperty() layoutBounds minY} position (which might not be 0) to the desired location.
*
*
For example, if {@code textnode} should be positioned at {@code finalY}
*
* textnode.setLayoutY(finalY - textnode.getLayoutBounds().getMinY());
*
* Failure to subtract {@code layoutBounds minY} may result in misplacement
* of the node. The {@link #relocate(double, double) relocate(x, y)} method will automatically do the
* correct computation and should generally be used over setting layoutY directly.
*
* The node's final translation will be computed as {@code layoutY} + {@link #translateYProperty translateY},
* where {@code layoutY} establishes the node's stable position
* and {@code translateY} optionally makes dynamic adjustments to that
* position.
*
* If the node is managed and has a {@link javafx.scene.layout.Region}
* as its parent, then the region will set {@code layoutY} according to its
* own layout policy. If the node is unmanaged or parented by a {@link Group},
* then the application may set {@code layoutY} directly to position it.
*
* @see #relocate(double, double)
* @see #layoutBoundsProperty()
*/
private DoubleProperty layoutY;
public final void setLayoutY(double value) {
layoutYProperty().set(value);
}
public final double getLayoutY() {
return layoutY == null ? 0.0 : layoutY.get();
}
public final DoubleProperty layoutYProperty() {
if (layoutY == null) {
layoutY = new DoublePropertyBase(0.0) {
@Override
protected void invalidated() {
impl_transformsChanged();
}
@Override
public Object getBean() {
return Node.this;
}
@Override
public String getName() {
return "layoutY";
}
};
}
return layoutY;
}
/**
* Sets the node's layoutX and layoutY translation properties in order to
* relocate this node to the x,y location in the parent.
*
* This method does not alter translateX or translateY, which if also set
* will be added to layoutX and layoutY, adjusting the final location by
* corresponding amounts.
*
* @param x the target x coordinate location
* @param y the target y coordinate location
*/
public void relocate(double x, double y) {
setLayoutX(x - getLayoutBounds().getMinX());
setLayoutY(y - getLayoutBounds().getMinY());
PlatformLogger logger = Logging.getLayoutLogger();
if (logger.isLoggable(PlatformLogger.FINER)) {
logger.finer(this.toString()+" moved to ("+x+","+y+")");
}
}
/**
* Indicates whether this node is a type which can be resized by its parent.
* If this method returns true, then the parent will resize the node (ideally
* within its size range) by calling node.resize(width,height) during the
* layout pass. All Regions, Controls, and WebView are resizable classes
* which depend on their parents resizing them during layout once all sizing
* and CSS styling information has been applied.
*
* If this method returns false, then the parent cannot resize it during
* layout (resize() is a no-op) and it should return its layoutBounds for
* minimum, preferred, and maximum sizes. Group, Text, and all Shapes are not
* resizable and hence depend on the application to establish their sizing
* by setting appropriate properties (e.g. width/height for Rectangle,
* text on Text, and so on). Non-resizable nodes may still be relocated
* during layout.
*
* @see #getContentBias()
* @see #minWidth(double)
* @see #minHeight(double)
* @see #prefWidth(double)
* @see #prefHeight(double)
* @see #maxWidth(double)
* @see #maxHeight(double)
* @see #resize(double, double)
* @see #getLayoutBounds()
*
* @return whether or not this node type can be resized by its parent during layout
*/
public boolean isResizable() {
return false;
}
/**
* Returns the orientation of a node's resizing bias for layout purposes.
* If the node type has no bias, returns null. If the node is resizable and
* it's height depends on its width, returns HORIZONTAL, else if its width
* depends on its height, returns VERTICAL.
*
* Resizable subclasses should override this method to return an
* appropriate value.
*
* @see #isResizable()
* @see #minWidth(double)
* @see #minHeight(double)
* @see #prefWidth(double)
* @see #prefHeight(double)
* @see #maxWidth(double)
* @see #maxHeight(double)
*
* @return orientation of width/height dependency or null if there is none
*/
public Orientation getContentBias() {
return null;
}
/**
* Returns the node's minimum width for use in layout calculations.
* If the node is resizable, its parent should not resize its width any
* smaller than this value. If the node is not resizable, returns its
* layoutBounds width.
*
* Layout code which calls this method should first check the content-bias
* of the node. If the node has a vertical content-bias, then callers
* should pass in a height value that the minimum width should be based on.
* If the node has either a horizontal or null content-bias, then the caller
* should pass in -1.
*
* Node subclasses with a vertical content-bias should honor the height
* parameter whether -1 or a positive value. All other subclasses may ignore
* the height parameter (which will likely be -1).
*
* If Node's {@link #maxWidth(double)} is lower than this number,
* {@code minWidth} takes precedence. This means the Node should never be resized below {@code minWidth}.
*
* @see #isResizable()
* @see #getContentBias()
*
* @param height the height that should be used if minimum width depends on it
* @return the minimum width that the node should be resized to during layout
*
*/
public double minWidth(double height) {
return prefWidth(height);
}
/**
* Returns the node's minimum height for use in layout calculations.
* If the node is resizable, its parent should not resize its height any
* smaller than this value. If the node is not resizable, returns its
* layoutBounds height.
*
* Layout code which calls this method should first check the content-bias
* of the node. If the node has a horizontal content-bias, then callers
* should pass in a width value that the minimum height should be based on.
* If the node has either a vertical or null content-bias, then the caller
* should pass in -1.
*
* Node subclasses with a horizontal content-bias should honor the width
* parameter whether -1 or a positive value. All other subclasses may ignore
* the width parameter (which will likely be -1).
*
* If Node's {@link #maxHeight(double)} is lower than this number,
* {@code minHeight} takes precedence. This means the Node should never be resized below {@code minHeight}.
*
* @see #isResizable()
* @see #getContentBias()
*
* @param width the width that should be used if minimum height depends on it
* @return the minimum height that the node should be resized to during layout
*
*/
public double minHeight(double width) {
return prefHeight(width);
}
/**
* Returns the node's preferred width for use in layout calculations.
* If the node is resizable, its parent should treat this value as the
* node's ideal width within its range. If the node is not resizable,
* just returns its layoutBounds width, which should be treated as the rigid
* width of the node.
*
* Layout code which calls this method should first check the content-bias
* of the node. If the node has a vertical content-bias, then callers
* should pass in a height value that the preferred width should be based on.
* If the node has either a horizontal or null content-bias, then the caller
* should pass in -1.
*
* Node subclasses with a vertical content-bias should honor the height
* parameter whether -1 or a positive value. All other subclasses may ignore
* the height parameter (which will likely be -1).
*
* @see #isResizable()
* @see #getContentBias()
* @see #autosize()
*
* @param height the height that should be used if preferred width depends on it
* @return the preferred width that the node should be resized to during layout
*/
public double prefWidth(double height) {
return getLayoutBounds().getWidth();
}
/**
* Returns the node's preferred height for use in layout calculations.
* If the node is resizable, its parent should treat this value as the
* node's ideal height within its range. If the node is not resizable,
* just returns its layoutBounds height, which should be treated as the rigid
* height of the node.
*
* Layout code which calls this method should first check the content-bias
* of the node. If the node has a horizontal content-bias, then callers
* should pass in a width value that the preferred height should be based on.
* If the node has either a vertical or null content-bias, then the caller
* should pass in -1.
*
* Node subclasses with a horizontal content-bias should honor the height
* parameter whether -1 or a positive value. All other subclasses may ignore
* the height parameter (which will likely be -1).
*
* @see #getContentBias()
* @see #autosize()
*
* @param width the width that should be used if preferred height depends on it
* @return the preferred height that the node should be resized to during layout
*/
public double prefHeight(double width) {
return getLayoutBounds().getHeight();
}
/**
* Returns the node's maximum width for use in layout calculations.
* If the node is resizable, its parent should not resize its width any
* larger than this value. A value of Double.MAX_VALUE indicates the
* parent may expand the node's width beyond its preferred without limits.
*
* If the node is not resizable, returns its layoutBounds width.
*
* Layout code which calls this method should first check the content-bias
* of the node. If the node has a vertical content-bias, then callers
* should pass in a height value that the maximum width should be based on.
* If the node has either a horizontal or null content-bias, then the caller
* should pass in -1.
*
* Node subclasses with a vertical content-bias should honor the height
* parameter whether -1 or a positive value. All other subclasses may ignore
* the height parameter (which will likely be -1).
*
* If Node's {@link #minWidth(double)} is greater, it should take precedence
* over the {@code maxWidth}. This means the Node should never be resized below {@code minWidth}.
*
* @see #isResizable()
* @see #getContentBias()
*
* @param height the height that should be used if maximum width depends on it
* @return the maximum width that the node should be resized to during layout
*
*/
public double maxWidth(double height) {
return prefWidth(height);
}
/**
* Returns the node's maximum height for use in layout calculations.
* If the node is resizable, its parent should not resize its height any
* larger than this value. A value of Double.MAX_VALUE indicates the
* parent may expand the node's height beyond its preferred without limits.
*
* If the node is not resizable, returns its layoutBounds height.
*
* Layout code which calls this method should first check the content-bias
* of the node. If the node has a horizontal content-bias, then callers
* should pass in a width value that the maximum height should be based on.
* If the node has either a vertical or null content-bias, then the caller
* should pass in -1.
*
* Node subclasses with a horizontal content-bias should honor the width
* parameter whether -1 or a positive value. All other subclasses may ignore
* the width parameter (which will likely be -1).
*
* If Node's {@link #minHeight(double)} is greater, it should take precedence
* over the {@code maxHeight}. This means the Node should never be resized below {@code minHeight}.
*
* @see #isResizable()
* @see #getContentBias()
*
* @param width the width that should be used if maximum height depends on it
* @return the maximum height that the node should be resized to during layout
*
*/
public double maxHeight(double width) {
return prefHeight(width);
}
/**
* If the node is resizable, will set its layout bounds to the specified
* width and height. If the node is not resizable, this method is a no-op.
*
* This method should generally only be called by parent nodes from their
* layoutChildren() methods. All Parent classes will automatically resize
* resizable children, so resizing done directly by the application will be
* overridden by the node's parent, unless the child is unmanaged.
*
* Parents are responsible for ensuring the width and height values fall
* within the resizable node's preferred range. The autosize() method may
* be used if the parent just needs to resize the node to its preferred size.
*
*
* @see #isResizable()
* @see #getContentBias()
* @see #autosize()
* @see #minWidth(double)
* @see #minHeight(double)
* @see #prefWidth(double)
* @see #prefHeight(double)
* @see #maxWidth(double)
* @see #maxHeight(double)
* @see #getLayoutBounds()
*
* @param width the target layout bounds width
* @param height the target layout bounds height
*/
public void resize(double width, double height) {
}
/**
* If the node is resizable, will set its layout bounds to its current preferred
* width and height. If the node is not resizable, this method is a no-op.
*
* This method automatically queries the node's content-bias and if it's
* horizontal, will pass in the node's preferred width to get the preferred
* height; if vertical, will pass in the node's preferred height to get the width,
* and if null, will compute the preferred width/height independently.
*
*
* @see #isResizable()
* @see #getContentBias()
*
*/
public final void autosize() {
if (isResizable()) {
Orientation contentBias = getContentBias();
double w, h;
if (contentBias == null) {
w = boundedSize(prefWidth(-1), minWidth(-1), maxWidth(-1));
h = boundedSize(prefHeight(-1), minHeight(-1), maxHeight(-1));
} else if (contentBias == Orientation.HORIZONTAL) {
w = boundedSize(prefWidth(-1), minWidth(-1), maxWidth(-1));
h = boundedSize(prefHeight(w), minHeight(w), maxHeight(w));
} else { // bias == VERTICAL
h = boundedSize(prefHeight(-1), minHeight(-1), maxHeight(-1));
w = boundedSize(prefWidth(h), minWidth(h), maxWidth(h));
}
resize(w,h);
}
}
double boundedSize(double value, double min, double max) {
// if max < value, return max
// if min > value, return min
// if min > max, return min
return Math.min(Math.max(value, min), Math.max(min,max));
}
/**
* If the node is resizable, will set its layout bounds to the specified
* width and height. If the node is not resizable, the resize step is skipped.
*
* Once the node has been resized (if resizable) then sets the node's layoutX
* and layoutY translation properties in order to relocate it to x,y in the
* parent's coordinate space.
*
* This method should generally only be called by parent nodes from their
* layoutChildren() methods. All Parent classes will automatically resize
* resizable children, so resizing done directly by the application will be
* overridden by the node's parent, unless the child is unmanaged.
*
* Parents are responsible for ensuring the width and height values fall
* within the resizable node's preferred range. The autosize() and relocate()
* methods may be used if the parent just needs to resize the node to its
* preferred size and reposition it.
*
* @see #isResizable()
* @see #getContentBias()
* @see #autosize()
* @see #minWidth(double)
* @see #minHeight(double)
* @see #prefWidth(double)
* @see #prefHeight(double)
* @see #maxWidth(double)
* @see #maxHeight(double)
*
* @param x the target x coordinate location
* @param y the target y coordinate location
* @param width the target layout bounds width
* @param height the target layout bounds height
*
*/
public void resizeRelocate(double x, double y, double width, double height) {
resize(width, height);
relocate(x,y);
}
/**
* The 'alphabetic' (or 'roman') baseline offset from the node's layoutBounds.minY location
* that should be used when this node is being vertically aligned by baseline with
* other nodes. By default this returns the layoutBounds height of the node. Subclasses
* which contain text should override this method to return their actual text baseline offset.
*
* @return offset of text baseline from layoutBounds.minY
*/
public double getBaselineOffset() {
return getLayoutBounds().getHeight();
}
/**
* Returns the area of this {@code Node} projected onto the
* physical screen in pixel units.
* @since JavaFX 8.0
*/
public double computeAreaInScreen() {
return impl_computeAreaInScreen();
}
/*
* Help application or utility to implement LOD support by returning the
* projected area of a Node in pixel unit. The projected area is not clipped.
*
* For perspective camera, this method first exams node's bounds against
* camera's clipping plane to cut off those out of viewing frustrum. After
* computing areaInScreen, it applys a tight viewing frustrum check using
* canonical view volume.
*
* The result of areaInScreen comes from the product of
* (projViewTx x localToSceneTransform x localBounds).
*
* Returns 0 for those fall outside viewing frustrum.
*/
private double impl_computeAreaInScreen() {
Scene tmpScene = getScene();
if (tmpScene != null) {
Bounds bounds = getBoundsInLocal();
Camera camera = tmpScene.getEffectiveCamera();
boolean isPerspective = camera instanceof PerspectiveCamera ? true : false;
Transform localToSceneTx = getLocalToSceneTransform();
Affine3D tempTx = TempState.getInstance().tempTx;
BaseBounds localBounds = new BoxBounds((float) bounds.getMinX(),
(float) bounds.getMinY(),
(float) bounds.getMinZ(),
(float) bounds.getMaxX(),
(float) bounds.getMaxY(),
(float) bounds.getMaxZ());
// NOTE: Viewing frustrum check on camera's clipping plane is now only
// for perspective camera.
// TODO: Need to hook up parallel camera's nearClip and farClip.
if (isPerspective) {
Transform cameraL2STx = camera.getLocalToSceneTransform();
// If camera transform only contains translate, compare in scene
// coordinate. Otherwise, compare in camera coordinate.
if (cameraL2STx.getMxx() == 1.0
&& cameraL2STx.getMxy() == 0.0
&& cameraL2STx.getMxz() == 0.0
&& cameraL2STx.getMyx() == 0.0
&& cameraL2STx.getMyy() == 1.0
&& cameraL2STx.getMyz() == 0.0
&& cameraL2STx.getMzx() == 0.0
&& cameraL2STx.getMzy() == 0.0
&& cameraL2STx.getMzz() == 1.0) {
double minZ, maxZ;
// If node transform only contains translate, only convert
// minZ and maxZ to scene coordinate. Otherwise, convert
// node bounds to scene coordinate.
if (localToSceneTx.getMxx() == 1.0
&& localToSceneTx.getMxy() == 0.0
&& localToSceneTx.getMxz() == 0.0
&& localToSceneTx.getMyx() == 0.0
&& localToSceneTx.getMyy() == 1.0
&& localToSceneTx.getMyz() == 0.0
&& localToSceneTx.getMzx() == 0.0
&& localToSceneTx.getMzy() == 0.0
&& localToSceneTx.getMzz() == 1.0) {
Vec3d tempV3D = TempState.getInstance().vec3d;
tempV3D.set(0, 0, bounds.getMinZ());
localToScene(tempV3D);
minZ = tempV3D.z;
tempV3D.set(0, 0, bounds.getMaxZ());
localToScene(tempV3D);
maxZ = tempV3D.z;
} else {
Bounds nodeInSceneBounds = localToScene(bounds);
minZ = nodeInSceneBounds.getMinZ();
maxZ = nodeInSceneBounds.getMaxZ();
}
if (minZ > camera.getFarClipInScene()
|| maxZ < camera.getNearClipInScene()) {
return 0;
}
} else {
BaseBounds nodeInCameraBounds = new BoxBounds();
// We need to set tempTx to identity since it is a recycled transform.
// This is because impl_apply is a matrix concatenation operation.
tempTx.setToIdentity();
localToSceneTx.impl_apply(tempTx);
// Convert node from local coordinate to camera coordinate
tempTx.preConcatenate(camera.getSceneToLocalTransform());
tempTx.transform(localBounds, nodeInCameraBounds);
// Compare in camera coornidate
if (nodeInCameraBounds.getMinZ() > camera.getFarClip()
|| nodeInCameraBounds.getMaxZ() < camera.getNearClip()) {
return 0;
}
}
}
GeneralTransform3D projViewTx = TempState.getInstance().projViewTx;
projViewTx.set(camera.getProjViewTransform());
// We need to set tempTx to identity since it is a recycled transform.
// This is because impl_apply is a matrix concatenation operation.
tempTx.setToIdentity();
localToSceneTx.impl_apply(tempTx);
// The product of projViewTx * localToSceneTransform
GeneralTransform3D tx = projViewTx.mul(tempTx);
// Transform localBounds to projected bounds
localBounds = tx.transform(localBounds, localBounds);
double area = localBounds.getWidth() * localBounds.getHeight();
// Use canonical view volume to check whether object is outside the
// viewing frustrum
if (isPerspective) {
localBounds.intersectWith(-1, -1, 0, 1, 1, 1);
area = (localBounds.getWidth() < 0 || localBounds.getHeight() < 0) ? 0 : area;
}
return area * (camera.getViewWidth() / 2 * camera.getViewHeight() / 2);
}
return 0;
}
/* *************************************************************************
* *
* Bounds related APIs *
* *
**************************************************************************/
public final Bounds getBoundsInParent() {
return boundsInParentProperty().get();
}
/**
* The rectangular bounds of this {@code Node} which include its transforms.
* {@code boundsInParent} is calculated by
* taking the local bounds (defined by {@link #boundsInLocalProperty boundsInLocal}) and applying
* the transform created by setting the following additional variables
*
* - {@link #getTransforms transforms} ObservableList
* - {@link #scaleXProperty scaleX}, {@link #scaleYProperty scaleY}
* - {@link #rotateProperty rotate}
* - {@link #layoutXProperty layoutX}, {@link #layoutYProperty layoutY}
* - {@link #translateXProperty translateX}, {@link #translateYProperty translateY}
*
*
* The resulting bounds will be conceptually in the coordinate space of the
* {@code Node}'s parent, however the node need not have a parent to calculate
* these bounds.
*
* Note that this method does not take the node's visibility into account;
* the computation is based on the geometry of this {@code Node} only.
*
* This property will always have a non-null value.
*
* Note that boundsInParent is automatically recomputed whenever the
* geometry of a node changes, or when any of the following the change:
* transforms ObservableList, translateX, translateY, layoutX, layoutY,
* scaleX, scaleY, or the rotate variable. For this reason, it is an error
* to bind any of these values in a node to an expression that depends upon
* this variable. For example, the x or y variables of a shape, or
* translateX, translateY should never be bound to boundsInParent
* for the purpose of positioning the node.
*/
public final ReadOnlyObjectProperty boundsInParentProperty() {
return getMiscProperties().boundsInParentProperty();
}
private void invalidateBoundsInParent() {
if (miscProperties != null) {
miscProperties.invalidateBoundsInParent();
}
}
public final Bounds getBoundsInLocal() {
return boundsInLocalProperty().get();
}
/**
* The rectangular bounds of this {@code Node} in the node's
* untransformed local coordinate space. For nodes that extend
* {@link javafx.scene.shape.Shape}, the local bounds will also include
* space required for a non-zero stroke that may fall outside the shape's
* geometry that is defined by position and size attributes.
* The local bounds will also include any clipping set with {@link #clipProperty clip}
* as well as effects set with {@link #effectProperty effect}.
*
*
* Note that this method does not take the node's visibility into account;
* the computation is based on the geometry of this {@code Node} only.
*
* This property will always have a non-null value.
*
* Note that boundsInLocal is automatically recomputed whenever the
* geometry of a node changes. For this reason, it is an error to bind any
* of these values in a node to an expression that depends upon this variable.
* For example, the x or y variables of a shape should never be bound
* to boundsInLocal for the purpose of positioning the node.
*/
public final ReadOnlyObjectProperty boundsInLocalProperty() {
return getMiscProperties().boundsInLocalProperty();
}
private void invalidateBoundsInLocal() {
if (miscProperties != null) {
miscProperties.invalidateBoundsInLocal();
}
}
/**
* The rectangular bounds that should be used for layout calculations for
* this node. {@code layoutBounds} may differ from the visual bounds
* of the node and is computed differently depending on the node type.
*
* If the node type is resizable ({@link javafx.scene.layout.Region Region},
* {@link javafx.scene.control.Control Control}, or {@link javafx.scene.web.WebView WebView})
* then the layoutBounds will always be {@code 0,0 width x height}.
* If the node type is not resizable ({@link javafx.scene.shape.Shape Shape},
* {@link javafx.scene.text.Text Text}, or {@link Group}), then the layoutBounds
* are computed based on the node's geometric properties and does not include the
* node's clip, effect, or transforms. See individual class documentation
* for details.
*
* Note that the {@link #layoutXProperty layoutX}, {@link #layoutYProperty layoutY}, {@link #translateXProperty translateX}, and
* {@link #translateYProperty translateY} variables are not included in the layoutBounds.
* This is important because layout code must first determine the current
* size and location of the node (using layoutBounds) and then set
* {@code layoutX} and {@code layoutY} to adjust the translation of the
* node so that it will have the desired layout position.
*
* Because the computation of layoutBounds is often tied to a node's
* geometric variables, it is an error to bind any such variables to an
* expression that depends upon {@code layoutBounds}. For example, the
* x or y variables of a shape should never be bound to layoutBounds
* for the purpose of positioning the node.
*
* The layoutBounds will never be null.
*
*/
private LazyBoundsProperty layoutBounds = new LazyBoundsProperty() {
@Override
protected Bounds computeBounds() {
return impl_computeLayoutBounds();
}
@Override
public Object getBean() {
return Node.this;
}
@Override
public String getName() {
return "layoutBounds";
}
};
public final Bounds getLayoutBounds() {
return layoutBoundsProperty().get();
}
public final ReadOnlyObjectProperty layoutBoundsProperty() {
return layoutBounds;
}
/*
* Bounds And Transforms Computation
*
* This section of the code is responsible for computing and caching
* various bounds and transforms. For optimal performance and minimal
* recomputation of bounds (which can be quite expensive), we cache
* values on two different levels. We expose two public immutable
* Bounds boundsInParent objects and boundsInLocal. Because they are
* immutable and because they may change quite frequently (especially
* in the case of a Parent who's children are animated), it is
* important that the system does not rely on these variables, because
* doing so would produce a large amount of garbage. Rather, these
* variables are provided solely for the convenience of application
* developers and, being lazily bound, should generally be created at
* most once per frame.
*
* The second level of caching are within local Bounds2D variables.
* These variables, txBounds and geomBounds, are mutable and as such
* can be cached and updated as frequently as necessary without creating
* excessive garbage. However, since the computation of bounds is still
* expensive, it is desirable to cache both the geometric bounds and
* the "complete" transformed bounds (essentially, boundsInParent).
* Cached txBounds is particularly useful when computing the geometric
* bounds of a Parent since it would not require complete or partial
* recomputation of each child.
*
* Finally, we cache the complete transform for this node which converts
* its coord system from local to parent coords. This is useful both for
* minimizing bounds recomputations in the case of the geometry having
* changed but the transform not having changed, and also because the tx
* is required for several different computations (for example, it must
* be computed once during state synchronization with the PG peer, and
* must also be computed when the pivot point changes, and also when
* deriving the txBounds of the Node).
*
* As with any caching system, a subtle and non-trivial amount of code
* is devoted to invalidating the bounds / transforms at appropriate
* times and in appropriate places to make sure bounds / transforms
* are recomputed at all necessary times.
*
* There are three computeXXX functions. One is for computing the
* boundsInParent, the second for computing boundsInLocal, and the
* third for computing the default layout bounds (which, by default,
* is based on the geometric bounds). These functions are all prefixed
* with "compute" because they create and return new immutable
* Bounds objects.
*
* There are three getXXXBounds functions. One is for returning the
* complete transformed bounds. The second is for returning the
* local bounds. The last is for returning the geometric bounds. These
* functions are all prefixed with "get" because they may well return
* a cached value, or may actually compute the bounds if necessary. These
* functions all have the same signature. They take a Bounds2D and
* BaseTransform, and return a Bounds2D (the same as they took). These
* functions essentially populate the supplied bounds2D with the
* appropriate bounds information, leveraging cached bounds if possible.
*
* There is a single impl_computeGeomBounds function which is abstract.
* This must be implemented in each subclass, and is responsible for
* computing the actual geometric bounds for the Node. For example, Parent
* is written such that this function is the union of the transformed
* bounds of each child. Rectangle is written such that this takes into
* account the size and stroke. Text is written such that it is computed
* based on the actual glyphs.
*
* There are two updateXXX functions, updateGeomBounds and updateTxBounds.
* These functions are for ensuring that geomBounds and txBounds are
* valid. They only execute in the case of the cached value being invalid,
* so the function call is very cheap in cases where the cached bounds
* values are still valid.
*/
/**
* An affine transform that holds the computed local-to-parent transform.
* This is the concatenation of all transforms in this node, including all
* of the convenience transforms.
*/
private final Affine3D localToParentTx = new Affine3D();
/**
* This flag is used to indicate that localToParentTx is dirty and needs
* to be recomputed.
*/
private boolean transformDirty = true;
/**
* The cached transformed bounds. This is never null, but is frequently set
* to be invalid whenever the bounds for the node have changed. These are
* "complete" bounds, that is, with transforms and effect and clip applied.
* Note that this is equivalent to boundsInParent
*/
private BaseBounds txBounds = new RectBounds();
/**
* The cached bounds. This is never null, but is frequently set to be
* invalid whenever the bounds for the node have changed. These are the
* "content" bounds, that is, without transforms or effects applied.
*/
private BaseBounds geomBounds = new RectBounds();
/**
* This special flag is used only by Parent to flag whether or not
* the *parent* has processed the fact that bounds have changed for this
* child Node. We need some way of flagging this on a per-node basis to
* enable the significant performance optimizations and fast paths that
* are in the Parent code.
*
* To reduce confusion, although this variable is defined on Node, it
* really belongs to the Parent of the node and should *only* be modified
* by the parent.
*/
boolean boundsChanged;
/**
* Returns geometric bounds, but may be over-ridden by a subclass.
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
protected Bounds impl_computeLayoutBounds() {
BaseBounds tempBounds = TempState.getInstance().bounds;
tempBounds = getGeomBounds(tempBounds,
BaseTransform.IDENTITY_TRANSFORM);
return new BoundingBox(tempBounds.getMinX(),
tempBounds.getMinY(),
tempBounds.getMinZ(),
tempBounds.getWidth(),
tempBounds.getHeight(),
tempBounds.getDepth());
}
/**
* Subclasses may customize the layoutBounds by means of overriding the
* impl_computeLayoutBounds method. If the layout bounds need to be
* recomputed, the subclass must notify the Node implementation of this
* fact so that appropriate notifications and internal state can be
* kept in sync. Subclasses must call impl_layoutBoundsChanged to
* let Node know that the layout bounds are invalid and need to be
* recomputed.
*
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
protected final void impl_layoutBoundsChanged() {
if (!layoutBounds.valid) {
return;
}
layoutBounds.invalidate();
if ((nodeTransformation != null && nodeTransformation.hasScaleOrRotate()) || hasMirroring()) {
// if either the scale or rotate convenience variables are used,
// then we need a valid pivot point. Since the layoutBounds
// affects the pivot we need to invalidate the transform
impl_transformsChanged();
}
}
/**
* Loads the given bounds object with the transformed bounds relative to,
* and based on, the given transform. That is, this is the local bounds
* with the local-to-parent transform applied.
*
* We *never* pass null in as a bounds. This method will
* NOT take a null bounds object. The returned value may be
* the same bounds object passed in, or it may be a new object.
* The reason for this object promotion is in the case of needing
* to promote from a RectBounds to a BoxBounds (3D).
*/
BaseBounds getTransformedBounds(BaseBounds bounds, BaseTransform tx) {
updateLocalToParentTransform();
if (tx.isTranslateOrIdentity()) {
updateTxBounds();
bounds = bounds.deriveWithNewBounds(txBounds);
if (!tx.isIdentity()) {
final double translateX = tx.getMxt();
final double translateY = tx.getMyt();
final double translateZ = tx.getMzt();
bounds = bounds.deriveWithNewBounds(
(float) (bounds.getMinX() + translateX),
(float) (bounds.getMinY() + translateY),
(float) (bounds.getMinZ() + translateZ),
(float) (bounds.getMaxX() + translateX),
(float) (bounds.getMaxY() + translateY),
(float) (bounds.getMaxZ() + translateZ));
}
return bounds;
} else if (localToParentTx.isIdentity()) {
return getLocalBounds(bounds, tx);
} else {
double mxx = tx.getMxx();
double mxy = tx.getMxy();
double mxz = tx.getMxz();
double mxt = tx.getMxt();
double myx = tx.getMyx();
double myy = tx.getMyy();
double myz = tx.getMyz();
double myt = tx.getMyt();
double mzx = tx.getMzx();
double mzy = tx.getMzy();
double mzz = tx.getMzz();
double mzt = tx.getMzt();
BaseTransform boundsTx = tx.deriveWithConcatenation(localToParentTx);
bounds = getLocalBounds(bounds, boundsTx);
if (boundsTx == tx) {
tx.restoreTransform(mxx, mxy, mxz, mxt,
myx, myy, myz, myt,
mzx, mzy, mzz, mzt);
}
return bounds;
}
}
/**
* Loads the given bounds object with the local bounds relative to,
* and based on, the given transform. That is, these are the geometric
* bounds + clip and effect.
*
* We *never* pass null in as a bounds. This method will
* NOT take a null bounds object. The returned value may be
* the same bounds object passed in, or it may be a new object.
* The reason for this object promotion is in the case of needing
* to promote from a RectBounds to a BoxBounds (3D).
*/
BaseBounds getLocalBounds(BaseBounds bounds, BaseTransform tx) {
if (getEffect() != null || getClip() != null) {
// We either get the bounds of the effect (if it isn't null)
// or we get the geom bounds (if effect is null). We will then
// intersect this with the clip.
if (getEffect() != null) {
BaseBounds b = getEffect().impl_getBounds(bounds, tx, this, boundsAccessor);
bounds = bounds.deriveWithNewBounds(b);
} else {
bounds = getGeomBounds(bounds, tx);
}
// intersect with the clip. Take care with "bounds" as it may
// actually be TEMP_BOUNDS, so we save off state
if (getClip() != null) {
//TODO: For 3D case the intersecting transformed bounds and
// transformed clip will not produce the correct bounds.
double x1 = bounds.getMinX();
double y1 = bounds.getMinY();
double x2 = bounds.getMaxX();
double y2 = bounds.getMaxY();
double z1 = bounds.getMinZ();
double z2 = bounds.getMaxZ();
bounds = getClip().getTransformedBounds(bounds, tx);
bounds.intersectWith((float)x1, (float)y1, (float)z1,
(float)x2, (float)y2, (float)z2);
}
// return the bounds
return bounds;
} else {
// fast path, simply return geom bounds
return getGeomBounds(bounds, tx);
}
}
/**
* Loads the given bounds object with the geometric bounds relative to,
* and based on, the given transform.
*
* We *never* pass null in as a bounds. This method will
* NOT take a null bounds object. The returned value may be
* the same bounds object passed in, or it may be a new object.
* The reason for this object promotion is in the case of needing
* to promote from a RectBounds to a BoxBounds (3D).
*/
BaseBounds getGeomBounds(BaseBounds bounds, BaseTransform tx) {
if (tx.isTranslateOrIdentity()) {
// we can take a fast path since we know tx is either a simple
// translation or is identity
updateGeomBounds();
bounds = bounds.deriveWithNewBounds(geomBounds);
if (!tx.isIdentity()) {
double translateX = tx.getMxt();
double translateY = tx.getMyt();
double translateZ = tx.getMzt();
bounds = bounds.deriveWithNewBounds((float) (bounds.getMinX() + translateX),
(float) (bounds.getMinY() + translateY),
(float) (bounds.getMinZ() + translateZ),
(float) (bounds.getMaxX() + translateX),
(float) (bounds.getMaxY() + translateY),
(float) (bounds.getMaxZ() + translateZ));
}
return bounds;
} else if (tx.is2D()
&& (tx.getType()
& ~(BaseTransform.TYPE_UNIFORM_SCALE | BaseTransform.TYPE_TRANSLATION
| BaseTransform.TYPE_FLIP | BaseTransform.TYPE_QUADRANT_ROTATION)) != 0) {
// this is a non-uniform scale / non-quadrant rotate / skew transform
return impl_computeGeomBounds(bounds, tx);
} else {
// 3D transformations and
// selected 2D transformations (unifrom transform, flip, quadrant rotation).
// These 2D transformation will yield tight bounds when applied on the pre-computed
// geomBounds
// Note: Transforming the local geomBounds into a 3D space will yield a bounds
// that isn't as tight as transforming its geometry and compute it bounds.
updateGeomBounds();
return tx.transform(geomBounds, bounds);
}
}
/**
* Computes the geometric bounds for this Node. This method is abstract
* and must be implemented by each Node subclass.
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
public abstract BaseBounds impl_computeGeomBounds(BaseBounds bounds, BaseTransform tx);
/**
* If necessary, recomputes the cached local bounds. If the bounds are not
* invalid, then this method is a no-op.
*/
void updateGeomBounds() {
if (geomBoundsInvalid) {
geomBounds = impl_computeGeomBounds(geomBounds, BaseTransform.IDENTITY_TRANSFORM);
geomBoundsInvalid = false;
}
}
/**
* If necessary, recomputes the cached transformed bounds.
* If the cached transformed bounds are not invalid, then
* this method is a no-op.
*/
void updateTxBounds() {
if (txBoundsInvalid) {
updateLocalToParentTransform();
txBounds = getLocalBounds(txBounds, localToParentTx);
txBoundsInvalid = false;
}
}
/**
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
protected abstract boolean impl_computeContains(double localX, double localY);
private double min4(double v1, double v2, double v3, double v4) {
return Math.min(Math.min(v1, v2), Math.min(v3, v4));
}
private double max4(double v1, double v2, double v3, double v4) {
return Math.max(Math.max(v1, v2), Math.max(v3, v4));
}
private double min8(double v1, double v2, double v3, double v4,
double v5, double v6, double v7, double v8) {
return Math.min(min4(v1, v2, v3, v4), min4(v5, v6, v7, v8));
}
private double max8(double v1, double v2, double v3, double v4,
double v5, double v6, double v7, double v8) {
return Math.max(max4(v1, v2, v3, v4), max4(v5, v6, v7, v8));
}
Bounds createBoundingBox(Point3D p1, Point3D p2, Point3D p3, Point3D p4,
Point3D p5, Point3D p6, Point3D p7, Point3D p8) {
double minX = min8(p1.getX(), p2.getX(), p3.getX(), p4.getX(),
p5.getX(), p6.getX(), p7.getX(), p8.getX());
double maxX = max8(p1.getX(), p2.getX(), p3.getX(), p4.getX(),
p5.getX(), p6.getX(), p7.getX(), p8.getX());
double minY = min8(p1.getY(), p2.getY(), p3.getY(), p4.getY(),
p5.getY(), p6.getY(), p7.getY(), p8.getY());
double maxY = max8(p1.getY(), p2.getY(), p3.getY(), p4.getY(),
p5.getY(), p6.getY(), p7.getY(), p8.getY());
double minZ = min8(p1.getZ(), p2.getZ(), p3.getZ(), p4.getZ(),
p5.getZ(), p6.getZ(), p7.getZ(), p8.getZ());
double maxZ = max8(p1.getZ(), p2.getZ(), p3.getZ(), p4.getZ(),
p5.getZ(), p6.getZ(), p7.getZ(), p8.getZ());
return new BoundingBox(minX, minY, minZ, maxX - minX, maxY - minY, maxZ - minZ);
}
Bounds createBoundingBox(Point2D p1, Point2D p2, Point2D p3, Point2D p4) {
double minX = min4(p1.getX(), p2.getX(), p3.getX(), p4.getX());
double maxX = max4(p1.getX(), p2.getX(), p3.getX(), p4.getX());
double minY = min4(p1.getY(), p2.getY(), p3.getY(), p4.getY());
double maxY = max4(p1.getY(), p2.getY(), p3.getY(), p4.getY());
return new BoundingBox(minX, minY, maxX - minX, maxY - minY);
}
/*
* Bounds Invalidation And Notification
*
* The goal of this section is to efficiently propagate bounds
* invalidation through the scenegraph while also being semantically
* correct.
*
* The code path for invalidation of layout bounds is somewhat confusing
* primarily due to performance enhancements and the desire to reduce the
* number of requestLayout() calls that are performed when layout bounds
* change. Before diving into layout bounds, I will first describe how
* normal bounds invalidation occurs.
*
* When a node's geometry changes (for example, if the width of a
* Rectangle is changed) then the Node must call impl_geomChanged().
* Invoking this function will eventually clear all cached bounds and
* notify to each parent up the tree that their bounds may have changed.
*
* After invalidating geomBounds (and after kicking off layout bounds
* notification), impl_geomChanged calls localBoundsChanged(). It should
* be noted that impl_geomChanged should only be called when the geometry
* of the node has changed such that it may result in the geom bounds
* actually changing.
*
* localBoundsChanged() simply invalidates boundsInLocal and then calls
* transformedBoundsChanged().
*
* transformedBoundsChanged() is responsible for invalidating
* boundsInParent and txBounds. If the Node is not visible, then there is
* no need to notify the parent of the bounds change because the parent's
* bounds do not include invisible nodes. If the node is visible, then
* it must tell the parent that this child node's bounds have changed.
* It is up to the parent to eventually invoke its own impl_geomChanged
* function. If instead of a parent this node has a clipParent, then the
* clipParent's localBoundsChanged() is called instead.
*
* There are a few other ways in which we enter the invalidate steps
* beyond just the geometry changes. If the visibility of a Node changes,
* its own bounds are not affected but its parent's bounds are. So a
* special call to parent.childVisibilityChanged is made so the parent
* can react accordingly.
*
* If a transform is changed (layoutX, layoutY, rotate, transforms, etc)
* then the transform must be invalidated. When a transform is invalidated,
* it must also invalidate the txBounds by invoking
* transformedBoundsChanged, which will in turn notify the parent as
* before.
*
* If an effect is changed or replaced then the local bounds must be
* invalidated, as well as the transformedBounds and the parent notified
* of the change in bounds.
*
* layoutBound is somewhat unique in that it can be redefined in
* subclasses. By default, the layoutBounds is the geomBounds, and so
* whenever the impl_geomBounds() function is called the layoutBounds
* must be invalidated. However in subclasses, especially Resizables,
* the layout bounds may not be defined to be the same as the geometric
* bounds. This is both useful and provides a very nice performance
* optimization for regions and controls. In this case, subclasses
* need some way to interpose themselves such that a call to
* impl_geomChanged() *does not* invalidate the layout bounds.
*
* This interposition happens by providing the
* impl_notifyLayoutBoundsChanged function. The default implementation
* simply invalidates boundsInLocal. Subclasses (such as Region and
* Control) can override this function so that it does not invalidate
* the layout bounds.
*
* An on invalidate trigger on layoutBounds handles kicking off the rest
* of the invalidate process for layoutBounds. Because the layout bounds
* define the pivot point, if scaleX, scaleY, or rotate contain
* non-identity values then whenever the layoutBounds change the
* transformed bounds also change. Finally, if this node's parent is
* a Region and if the Node is being managed by the Region, then
* we must call requestLayout on the Region whenever the layout bounds
* have changed.
*/
/**
* Invoked by subclasses whenever their geometric bounds have changed.
* Because the default layout bounds is based on the node geometry, this
* function will invoke impl_notifyLayoutBoundsChanged. The default
* implementation of impl_notifyLayoutBoundsChanged() will simply invalidate
* layoutBounds. Resizable subclasses will want to override this function
* in most cases to be a no-op.
*
* This function will also invalidate the cached geom bounds, and then
* invoke localBoundsChanged() which will eventually end up invoking a
* chain of functions up the tree to ensure that each parent of this
* Node is notified that its bounds may have also changed.
*
* This function should be treated as though it were final. It is not
* intended to be overridden by subclasses.
*
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
protected void impl_geomChanged() {
if (geomBoundsInvalid) {
// GeomBoundsInvalid is false when node geometry changed and
// the untransformed node bounds haven't been recalculated yet.
// Most of the time, the recalculation of layout and transformed
// node bounds don't require validation of untransformed bounds
// and so we can not skip the following notifications.
impl_notifyLayoutBoundsChanged();
transformedBoundsChanged();
return;
}
geomBounds.makeEmpty();
geomBoundsInvalid = true;
impl_markDirty(DirtyBits.NODE_BOUNDS);
impl_notifyLayoutBoundsChanged();
localBoundsChanged();
}
private boolean geomBoundsInvalid = true;
private boolean txBoundsInvalid = true;
/**
* Responds to changes in the local bounds by invalidating boundsInLocal
* and notifying this node that its transformed bounds have changed.
*/
void localBoundsChanged() {
invalidateBoundsInLocal();
transformedBoundsChanged();
}
/**
* Responds to changes in the transformed bounds by invalidating txBounds
* and boundsInParent. If this Node is not visible, then we have no need
* to walk further up the tree but can instead simply invalidate state.
* Otherwise, this function will notify parents (either the parent or the
* clipParent) that this child Node's bounds have changed.
*/
void transformedBoundsChanged() {
if (txBoundsInvalid) {
return;
}
txBounds.makeEmpty();
txBoundsInvalid = true;
invalidateBoundsInParent();
if (isVisible()) {
notifyParentOfBoundsChange();
}
impl_markDirty(DirtyBits.NODE_TRANSFORMED_BOUNDS);
}
/**
* Invoked by impl_geomChanged(). Since layoutBounds is by default based
* on the geometric bounds, the default implementation of this function will
* invalidate the layoutBounds. Resizable Node subclasses generally base
* layoutBounds on the width/height instead of the geometric bounds, and so
* will generally want to override this function to be a no-op.
*
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
protected void impl_notifyLayoutBoundsChanged() {
impl_layoutBoundsChanged();
// notify the parent
// Group instanceof check a little hoaky, but it allows us to disable
// unnecessary layout for the case of a non-resizable within a group
Parent p = getParent();
if (isManaged() && (p != null) && !(p instanceof Group && !isResizable())
&& !p.performingLayout) {
p.requestLayout();
}
}
/**
* Notifies both the real parent and the clip parent (if they exist) that
* the bounds of the child has changed. Note that since FX doesn't throw
* NPE's, things actually are faster if we don't check twice for Null
* (we check once, the compiler checks again)
*/
void notifyParentOfBoundsChange() {
// let the parent know which node has changed and the parent will
// deal with marking itself invalid correctly
Parent p = getParent();
if (p != null) {
p.childBoundsChanged(this);
}
// since the clip is used to compute the local bounds (and not the
// geom bounds), we just need to notify that local bounds on the
// clip parent have changed
if (clipParent != null) {
clipParent.localBoundsChanged();
}
}
/***************************************************************************
* *
* Geometry and coordinate system related APIs. For example, methods *
* related to containment, intersection, coordinate space conversion, etc. *
* *
**************************************************************************/
/**
* Returns {@code true} if the given point (specified in the local
* coordinate space of this {@code Node}) is contained within the shape of
* this {@code Node}. Note that this method does not take visibility into
* account; the test is based on the geometry of this {@code Node} only.
*/
public boolean contains(double localX, double localY) {
if (containsBounds(localX, localY)) {
return (isPickOnBounds() || impl_computeContains(localX, localY));
}
return false;
}
/**
* This method only does the contains check based on the bounds, clip and
* effect of this node, excluding its shape (or geometry).
*
* Returns true if the given point (specified in the local
* coordinate space of this {@code Node}) is contained within the bounds,
* clip and effect of this node.
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
protected boolean containsBounds(double localX, double localY) {
final TempState tempState = TempState.getInstance();
BaseBounds tempBounds = tempState.bounds;
// first, we do a quick test to see if the point is contained in
// our local bounds. If so, then we will go the next step and check
// the clip, effect, and geometry for containment.
tempBounds = getLocalBounds(tempBounds,
BaseTransform.IDENTITY_TRANSFORM);
if (tempBounds.contains((float)localX, (float)localY)) {
// if the clip is defined, then check it for containment, being
// sure to convert from this node's local coordinate system
// to the local coordinate system of the clip node
if (getClip() != null) {
tempState.point.x = (float)localX;
tempState.point.y = (float)localY;
try {
getClip().parentToLocal(tempState.point);
} catch (NoninvertibleTransformException e) {
return false;
}
if (!getClip().contains(tempState.point.x, tempState.point.y)) {
return false;
}
}
// if there is an effect, then we need to check the effect
// for containment as well.
if (getEffect() != null) {
tempBounds = getEffect().impl_getBounds(
tempBounds,
BaseTransform.IDENTITY_TRANSFORM,
this, boundsAccessor);
if (!tempBounds.contains((float)localX, (float)localY)) {
return false;
}
}
return true;
}
return false;
}
/**
* Returns {@code true} if the given point (specified in the local
* coordinate space of this {@code Node}) is contained within the shape of
* this {@code Node}. Note that this method does not take visibility into
* account; the test is based on the geometry of this {@code Node} only.
*/
public boolean contains(Point2D localPoint) {
return contains(localPoint.getX(), localPoint.getY());
}
/**
* Returns {@code true} if the given rectangle (specified in the local
* coordinate space of this {@code Node}) intersects the shape of this
* {@code Node}. Note that this method does not take visibility into
* account; the test is based on the geometry of this {@code Node} only.
* The default behavior of this function is simply to check if the
* given coordinates intersect with the local bounds.
*/
public boolean intersects(double localX, double localY, double localWidth, double localHeight) {
BaseBounds tempBounds = TempState.getInstance().bounds;
tempBounds = getLocalBounds(tempBounds,
BaseTransform.IDENTITY_TRANSFORM);
return tempBounds.intersects((float)localX,
(float)localY,
(float)localWidth,
(float)localHeight);
}
/**
* Returns {@code true} if the given bounds (specified in the local
* coordinate space of this {@code Node}) intersects the shape of this
* {@code Node}. Note that this method does not take visibility into
* account; the test is based on the geometry of this {@code Node} only.
* The default behavior of this function is simply to check if the
* given coordinates intersect with the local bounds.
*/
public boolean intersects(Bounds localBounds) {
return intersects(localBounds.getMinX(), localBounds.getMinY(), localBounds.getWidth(), localBounds.getHeight());
}
/**
* Transforms a point from the coordinate space of the {@link Screen}
* into the local coordinate space of this {@code Node}.
* @param screenX x coordinate of a point on a Screen
* @param screenY y coordinate of a point on a Screen
* @return local Node's coordinates of the point or null if Node is not in a {@link Window}.
* Null is also returned if the transformation from local to Scene is not invertible.
* @since JavaFX 8.0
*/
public Point2D screenToLocal(double screenX, double screenY) {
Scene scene = getScene();
Window window = scene.getWindow();
if (scene == null || window == null) {
return null;
}
final com.sun.javafx.geom.Point2D tempPt =
TempState.getInstance().point;
tempPt.setLocation((float)(screenX - scene.getX() - window.getX()),
(float)(screenY - scene.getY() - window.getY()));
final SubScene subScene = getSubScene();
if (subScene != null) {
final Point2D ssCoord = SceneUtils.sceneToSubScenePlane(subScene,
new Point2D(tempPt.x, tempPt.y));
if (ssCoord == null) {
return null;
}
tempPt.setLocation((float) ssCoord.getX(), (float) ssCoord.getY());
}
final Point3D ppIntersect =
scene.getEffectiveCamera().pickProjectPlane(tempPt.x, tempPt.y);
tempPt.setLocation((float) ppIntersect.getX(), (float) ppIntersect.getY());
try {
sceneToLocal(tempPt);
} catch (NoninvertibleTransformException e) {
return null;
}
return new Point2D(tempPt.x, tempPt.y);
}
/**
* Transforms a point from the coordinate space of the {@link javafx.stage.Screen}
* into the local coordinate space of this {@code Node}.
* @param screenPoint a point on a Screen
* @return local Node's coordinates of the point or null if Node is not in a {@link Window}.
* Null is also returned if the transformation from local to Scene is not invertible.
* @since JavaFX 8.0
*/
public Point2D screenToLocal(Point2D screenPoint) {
return screenToLocal(screenPoint.getX(), screenPoint.getY());
}
/**
* Transforms a rectangle from the coordinate space of the
* {@link javafx.stage.Screen} into the local coordinate space of this
* {@code Node}. Returns reasonable result only in 2D space.
* @param screenBounds bounds on a Screen
* @return bounds in the local Node'space or null if Node is not in a {@link Window}.
* Null is also returned if the transformation from local to Scene is not invertible.
* @since JavaFX 8.0
*/
public Bounds screenToLocal(Bounds screenBounds) {
final Point2D p1 = screenToLocal(screenBounds.getMinX(), screenBounds.getMinY());
final Point2D p2 = screenToLocal(screenBounds.getMinX(), screenBounds.getMaxY());
final Point2D p3 = screenToLocal(screenBounds.getMaxX(), screenBounds.getMinY());
final Point2D p4 = screenToLocal(screenBounds.getMaxX(), screenBounds.getMaxY());
if (p1 == null || p2 == null || p3 == null || p4 == null) {
return null;
}
final double minX = min4(p1.getX(), p2.getX(), p3.getX(), p4.getX());
final double maxX = max4(p1.getX(), p2.getX(), p3.getX(), p4.getX());
final double minY = min4(p1.getY(), p2.getY(), p3.getY(), p4.getY());
final double maxY = max4(p1.getY(), p2.getY(), p3.getY(), p4.getY());
return new BoundingBox(minX, minY, 0.0, maxX - minX, maxY - minY, 0.0);
}
/**
* Transforms a point from the coordinate space of the {@link Scene}
* into the local coordinate space of this {@code Node}.
* @param sceneX x coordinate of a point on a Scene
* @param sceneY y coordinate of a point on a Scene
* @return local Node's coordinates of the point or null if Node is not in a {@link Window}.
* Null is also returned if the transformation from local to Scene is not invertible.
*/
public Point2D sceneToLocal(double sceneX, double sceneY) {
final com.sun.javafx.geom.Point2D tempPt =
TempState.getInstance().point;
tempPt.setLocation((float)sceneX, (float)sceneY);
try {
sceneToLocal(tempPt);
} catch (NoninvertibleTransformException e) {
return null;
}
return new Point2D(tempPt.x, tempPt.y);
}
/**
* Transforms a point from the coordinate space of the {@link javafx.scene.Scene}
* into the local coordinate space of this {@code Node}.
* @param scenePoint a point on a Scene
* @return local Node's coordinates of the point or null if Node is not in a {@link Window}.
* Null is also returned if the transformation from local to Scene is not invertible.
*/
public Point2D sceneToLocal(Point2D scenePoint) {
return sceneToLocal(scenePoint.getX(), scenePoint.getY());
}
/**
* Transforms a point from the coordinate space of the {@link javafx.scene.Scene}
* into the local coordinate space of this {@code Node}.
* @param scenePoint a point on a Scene
* @return local Node's coordinates of the point or null if Node is not in a {@link Window}.
* Null is also returned if the transformation from local to Scene is not invertible.
* @since JavaFX 8.0
*/
public Point3D sceneToLocal(Point3D scenePoint) {
return sceneToLocal(scenePoint.getX(), scenePoint.getY(), scenePoint.getZ());
}
/**
* Transforms a point from the coordinate space of the {@link javafx.scene.Scene}
* into the local coordinate space of this {@code Node}.
* @param sceneX x coordinate of a point on a Scene
* @param sceneY y coordinate of a point on a Scene
* @param sceneZ z coordinate of a point on a Scene
* @return local Node's coordinates of the point or null if Node is not in a {@link Window}.
* Null is also returned if the transformation from local to Scene is not invertible.
* @since JavaFX 8.0
*/
public Point3D sceneToLocal(double sceneX, double sceneY, double sceneZ) {
try {
return sceneToLocal0(sceneX, sceneY, sceneZ);
} catch (NoninvertibleTransformException ex) {
return null;
}
}
/**
* Internal method to transform a point from scene to local coordinates.
*/
private Point3D sceneToLocal0(double x, double y, double z) throws NoninvertibleTransformException {
final com.sun.javafx.geom.Vec3d tempV3D =
TempState.getInstance().vec3d;
tempV3D.set(x, y, z);
sceneToLocal(tempV3D);
return new Point3D(tempV3D.x, tempV3D.y, tempV3D.z);
}
/**
* Transforms a rectangle from the coordinate space of the
* {@link javafx.scene.Scene} into the local coordinate space of this
* {@code Node}.
* @param sceneBounds bounds on a Scene
* @return bounds in the local Node'space or null if Node is not in a {@link Window}.
* Null is also returned if the transformation from local to Scene is not invertible.
*/
public Bounds sceneToLocal(Bounds sceneBounds) {
// Do a quick update of localToParentTransform so that we can determine
// if this tx is 2D transform
updateLocalToParentTransform();
if (localToParentTx.is2D() && (sceneBounds.getMinZ() == 0) && (sceneBounds.getMaxZ() == 0)) {
Point2D p1 = sceneToLocal(sceneBounds.getMinX(), sceneBounds.getMinY());
Point2D p2 = sceneToLocal(sceneBounds.getMaxX(), sceneBounds.getMinY());
Point2D p3 = sceneToLocal(sceneBounds.getMaxX(), sceneBounds.getMaxY());
Point2D p4 = sceneToLocal(sceneBounds.getMinX(), sceneBounds.getMaxY());
return createBoundingBox(p1, p2, p3, p4);
}
try {
Point3D p1 = sceneToLocal0(sceneBounds.getMinX(), sceneBounds.getMinY(), sceneBounds.getMinZ());
Point3D p2 = sceneToLocal0(sceneBounds.getMinX(), sceneBounds.getMinY(), sceneBounds.getMaxZ());
Point3D p3 = sceneToLocal0(sceneBounds.getMinX(), sceneBounds.getMaxY(), sceneBounds.getMinZ());
Point3D p4 = sceneToLocal0(sceneBounds.getMinX(), sceneBounds.getMaxY(), sceneBounds.getMaxZ());
Point3D p5 = sceneToLocal0(sceneBounds.getMaxX(), sceneBounds.getMaxY(), sceneBounds.getMinZ());
Point3D p6 = sceneToLocal0(sceneBounds.getMaxX(), sceneBounds.getMaxY(), sceneBounds.getMaxZ());
Point3D p7 = sceneToLocal0(sceneBounds.getMaxX(), sceneBounds.getMinY(), sceneBounds.getMinZ());
Point3D p8 = sceneToLocal0(sceneBounds.getMaxX(), sceneBounds.getMinY(), sceneBounds.getMaxZ());
return createBoundingBox(p1, p2, p3, p4, p5, p6, p7, p8);
} catch (NoninvertibleTransformException e) {
return null;
}
}
/**
* Transforms a point from the local coordinate space of this {@code Node}
* into the coordinate space of its {@link javafx.stage.Screen}.
* @param localX x coordinate of a point in Node's space
* @param localY y coordinate of a point in Node's space
* @return screen coordinates of the point or null if Node is not in a {@link Window}
* @since JavaFX 8.0
*/
public Point2D localToScreen(double localX, double localY) {
return localToScreen(localX, localY, 0.0);
}
/**
* Transforms a point from the local coordinate space of this {@code Node}
* into the coordinate space of its {@link javafx.stage.Screen}.
* @param localPoint a point in Node's space
* @return screen coordinates of the point or null if Node is not in a {@link Window}
* @since JavaFX 8.0
*/
public Point2D localToScreen(Point2D localPoint) {
return localToScreen(localPoint.getX(), localPoint.getY());
}
/**
* Transforms a point from the local coordinate space of this {@code Node}
* into the coordinate space of its {@link javafx.stage.Screen}.
* @param localX x coordinate of a point in Node's space
* @param localY y coordinate of a point in Node's space
* @param localZ z coordinate of a point in Node's space
* @return screen coordinates of the point or null if Node is not in a {@link Window}
* @since JavaFX 8.0
*/
public Point2D localToScreen(double localX, double localY, double localZ) {
Scene scene = getScene();
Window window = scene.getWindow();
if (scene == null || window == null) {
return null;
}
Point3D pt = localToScene(localX, localY, localZ);
final SubScene subScene = getSubScene();
if (subScene != null) {
pt = SceneUtils.subSceneToScene(subScene, pt);
}
final Point2D projection = CameraHelper.project(
SceneHelper.getEffectiveCamera(getScene()), pt);
return new Point2D(projection.getX() + scene.getX() + window.getX(),
projection.getY() + scene.getY() + window.getY());
}
/**
* Transforms a point from the local coordinate space of this {@code Node}
* into the coordinate space of its {@link javafx.stage.Screen}.
* @param localPoint a point in Node's space
* @return screen coordinates of the point or null if Node is not in a {@link Window}
* @since JavaFX 8.0
*/
public Point2D localToScreen(Point3D localPoint) {
return localToScreen(localPoint.getX(), localPoint.getY(), localPoint.getZ());
}
/**
* Transforms a bounds from the local coordinate space of this
* {@code Node} into the coordinate space of its {@link javafx.stage.Screen}.
* @param localBounds bounds in Node's space
* @return the bounds in screen coordinates or null if Node is not in a {@link Window}
* @since JavaFX 8.0
*/
public Bounds localToScreen(Bounds localBounds) {
final Point2D p1 = localToScreen(localBounds.getMinX(), localBounds.getMinY(), localBounds.getMinZ());
final Point2D p2 = localToScreen(localBounds.getMinX(), localBounds.getMinY(), localBounds.getMaxZ());
final Point2D p3 = localToScreen(localBounds.getMinX(), localBounds.getMaxY(), localBounds.getMinZ());
final Point2D p4 = localToScreen(localBounds.getMinX(), localBounds.getMaxY(), localBounds.getMaxZ());
final Point2D p5 = localToScreen(localBounds.getMaxX(), localBounds.getMaxY(), localBounds.getMinZ());
final Point2D p6 = localToScreen(localBounds.getMaxX(), localBounds.getMaxY(), localBounds.getMaxZ());
final Point2D p7 = localToScreen(localBounds.getMaxX(), localBounds.getMinY(), localBounds.getMinZ());
final Point2D p8 = localToScreen(localBounds.getMaxX(), localBounds.getMinY(), localBounds.getMaxZ());
if (p1 == null || p2 == null || p3 == null || p4 == null
|| p5 == null || p6 == null || p7 == null || p8 == null) {
return null;
}
final double minX = min8(p1.getX(), p2.getX(), p3.getX(), p4.getX(),
p5.getX(), p6.getX(), p7.getX(), p8.getX());
final double maxX = max8(p1.getX(), p2.getX(), p3.getX(), p4.getX(),
p5.getX(), p6.getX(), p7.getX(), p8.getX());
final double minY = min8(p1.getY(), p2.getY(), p3.getY(), p4.getY(),
p5.getY(), p6.getY(), p7.getY(), p8.getY());
final double maxY = max8(p1.getY(), p2.getY(), p3.getY(), p4.getY(),
p5.getY(), p6.getY(), p7.getY(), p8.getY());
return new BoundingBox(minX, minY, maxX - minX, maxY - minY);
}
/**
* Transforms a point from the local coordinate space of this {@code Node}
* into the coordinate space of its {@link javafx.scene.Scene}.
* @param localX x coordinate of a point in Node's space
* @param localY y coordinate of a point in Node's space
* @return scene coordinates of the point or null if Node is not in a {@link Window}
*/
public Point2D localToScene(double localX, double localY) {
final com.sun.javafx.geom.Point2D tempPt =
TempState.getInstance().point;
tempPt.setLocation((float)localX, (float)localY);
localToScene(tempPt);
return new Point2D(tempPt.x, tempPt.y);
}
/**
* Transforms a point from the local coordinate space of this {@code Node}
* into the coordinate space of its {@link javafx.scene.Scene}.
* @param localPoint a point in Node's space
* @return scene coordinates of the point or null if Node is not in a {@link Window}
*/
public Point2D localToScene(Point2D localPoint) {
return localToScene(localPoint.getX(), localPoint.getY());
}
/**
* Transforms a point from the local coordinate space of this {@code Node}
* into the coordinate space of its {@link javafx.scene.Scene}.
* @since JavaFX 8.0
*/
public Point3D localToScene(Point3D localPoint) {
return localToScene(localPoint.getX(), localPoint.getY(), localPoint.getZ());
}
/**
* Transforms a point from the local coordinate space of this {@code Node}
* into the coordinate space of its {@link javafx.scene.Scene}.
* @since JavaFX 8.0
*/
public Point3D localToScene(double x, double y, double z) {
final com.sun.javafx.geom.Vec3d tempV3D =
TempState.getInstance().vec3d;
tempV3D.set(x, y, z);
localToScene(tempV3D);
return new Point3D(tempV3D.x, tempV3D.y, tempV3D.z);
}
/**
* Transforms a bounds from the local coordinate space of this
* {@code Node} into the coordinate space of its {@link javafx.scene.Scene}.
* @param localBounds bounds in Node's space
* @return the bounds in the scene coordinates or null if Node is not in a {@link Window}
*/
public Bounds localToScene(Bounds localBounds) {
// Do a quick update of localToParentTransform so that we can determine
// if this tx is 2D transform
updateLocalToParentTransform();
if (localToParentTx.is2D() && (localBounds.getMinZ() == 0) && (localBounds.getMaxZ() == 0)) {
Point2D p1 = localToScene(localBounds.getMinX(), localBounds.getMinY());
Point2D p2 = localToScene(localBounds.getMaxX(), localBounds.getMinY());
Point2D p3 = localToScene(localBounds.getMaxX(), localBounds.getMaxY());
Point2D p4 = localToScene(localBounds.getMinX(), localBounds.getMaxY());
return createBoundingBox(p1, p2, p3, p4);
}
Point3D p1 = localToScene(localBounds.getMinX(), localBounds.getMinY(), localBounds.getMinZ());
Point3D p2 = localToScene(localBounds.getMinX(), localBounds.getMinY(), localBounds.getMaxZ());
Point3D p3 = localToScene(localBounds.getMinX(), localBounds.getMaxY(), localBounds.getMinZ());
Point3D p4 = localToScene(localBounds.getMinX(), localBounds.getMaxY(), localBounds.getMaxZ());
Point3D p5 = localToScene(localBounds.getMaxX(), localBounds.getMaxY(), localBounds.getMinZ());
Point3D p6 = localToScene(localBounds.getMaxX(), localBounds.getMaxY(), localBounds.getMaxZ());
Point3D p7 = localToScene(localBounds.getMaxX(), localBounds.getMinY(), localBounds.getMinZ());
Point3D p8 = localToScene(localBounds.getMaxX(), localBounds.getMinY(), localBounds.getMaxZ());
return createBoundingBox(p1, p2, p3, p4, p5, p6, p7, p8);
}
/**
* Transforms a point from the coordinate space of the parent into the
* local coordinate space of this {@code Node}.
*/
public Point2D parentToLocal(double parentX, double parentY) {
final com.sun.javafx.geom.Point2D tempPt =
TempState.getInstance().point;
tempPt.setLocation((float)parentX, (float)parentY);
try {
parentToLocal(tempPt);
} catch (NoninvertibleTransformException e) {
return null;
}
return new Point2D(tempPt.x, tempPt.y);
}
/**
* Transforms a point from the coordinate space of the parent into the
* local coordinate space of this {@code Node}.
*/
public Point2D parentToLocal(Point2D parentPoint) {
return parentToLocal(parentPoint.getX(), parentPoint.getY());
}
/**
* Transforms a point from the coordinate space of the parent into the
* local coordinate space of this {@code Node}.
* @since JavaFX 8.0
*/
public Point3D parentToLocal(Point3D parentPoint) {
return parentToLocal(parentPoint.getX(), parentPoint.getY(), parentPoint.getZ());
}
/**
* Transforms a point from the coordinate space of the parent into the
* local coordinate space of this {@code Node}.
* @since JavaFX 8.0
*/
public Point3D parentToLocal(double parentX, double parentY, double parentZ) {
final com.sun.javafx.geom.Vec3d tempV3D =
TempState.getInstance().vec3d;
tempV3D.set(parentX, parentY, parentZ);
try {
parentToLocal(tempV3D);
} catch (NoninvertibleTransformException e) {
return null;
}
return new Point3D(tempV3D.x, tempV3D.y, tempV3D.z);
}
/**
* Transforms a rectangle from the coordinate space of the parent into the
* local coordinate space of this {@code Node}.
*/
public Bounds parentToLocal(Bounds parentBounds) {
// Do a quick update of localToParentTransform so that we can determine
// if this tx is 2D transform
updateLocalToParentTransform();
if (localToParentTx.is2D() && (parentBounds.getMinZ() == 0) && (parentBounds.getMaxZ() == 0)) {
Point2D p1 = parentToLocal(parentBounds.getMinX(), parentBounds.getMinY());
Point2D p2 = parentToLocal(parentBounds.getMaxX(), parentBounds.getMinY());
Point2D p3 = parentToLocal(parentBounds.getMaxX(), parentBounds.getMaxY());
Point2D p4 = parentToLocal(parentBounds.getMinX(), parentBounds.getMaxY());
return createBoundingBox(p1, p2, p3, p4);
}
Point3D p1 = parentToLocal(parentBounds.getMinX(), parentBounds.getMinY(), parentBounds.getMinZ());
Point3D p2 = parentToLocal(parentBounds.getMinX(), parentBounds.getMinY(), parentBounds.getMaxZ());
Point3D p3 = parentToLocal(parentBounds.getMinX(), parentBounds.getMaxY(), parentBounds.getMinZ());
Point3D p4 = parentToLocal(parentBounds.getMinX(), parentBounds.getMaxY(), parentBounds.getMaxZ());
Point3D p5 = parentToLocal(parentBounds.getMaxX(), parentBounds.getMaxY(), parentBounds.getMinZ());
Point3D p6 = parentToLocal(parentBounds.getMaxX(), parentBounds.getMaxY(), parentBounds.getMaxZ());
Point3D p7 = parentToLocal(parentBounds.getMaxX(), parentBounds.getMinY(), parentBounds.getMinZ());
Point3D p8 = parentToLocal(parentBounds.getMaxX(), parentBounds.getMinY(), parentBounds.getMaxZ());
return createBoundingBox(p1, p2, p3, p4, p5, p6, p7, p8);
}
/**
* Transforms a point from the local coordinate space of this {@code Node}
* into the coordinate space of its parent.
*/
public Point2D localToParent(double localX, double localY) {
final com.sun.javafx.geom.Point2D tempPt =
TempState.getInstance().point;
tempPt.setLocation((float)localX, (float)localY);
localToParent(tempPt);
return new Point2D(tempPt.x, tempPt.y);
}
/**
* Transforms a point from the local coordinate space of this {@code Node}
* into the coordinate space of its parent.
*/
public Point2D localToParent(Point2D localPoint) {
return localToParent(localPoint.getX(), localPoint.getY());
}
/**
* Transforms a point from the local coordinate space of this {@code Node}
* into the coordinate space of its parent.
* @since JavaFX 8.0
*/
public Point3D localToParent(Point3D localPoint) {
return localToParent(localPoint.getX(), localPoint.getY(), localPoint.getZ());
}
/**
* Transforms a point from the local coordinate space of this {@code Node}
* into the coordinate space of its parent.
* @since JavaFX 8.0
*/
public Point3D localToParent(double x, double y, double z) {
final com.sun.javafx.geom.Vec3d tempV3D =
TempState.getInstance().vec3d;
tempV3D.set(x, y, z);
localToParent(tempV3D);
return new Point3D(tempV3D.x, tempV3D.y, tempV3D.z);
}
/**
* Transforms a bounds from the local coordinate space of this
* {@code Node} into the coordinate space of its parent.
*/
public Bounds localToParent(Bounds localBounds) {
// Do a quick update of localToParentTransform so that we can determine
// if this tx is 2D transform
updateLocalToParentTransform();
if (localToParentTx.is2D() && (localBounds.getMinZ() == 0) && (localBounds.getMaxZ() == 0)) {
Point2D p1 = localToParent(localBounds.getMinX(), localBounds.getMinY());
Point2D p2 = localToParent(localBounds.getMaxX(), localBounds.getMinY());
Point2D p3 = localToParent(localBounds.getMaxX(), localBounds.getMaxY());
Point2D p4 = localToParent(localBounds.getMinX(), localBounds.getMaxY());
return createBoundingBox(p1, p2, p3, p4);
}
Point3D p1 = localToParent(localBounds.getMinX(), localBounds.getMinY(), localBounds.getMinZ());
Point3D p2 = localToParent(localBounds.getMinX(), localBounds.getMinY(), localBounds.getMaxZ());
Point3D p3 = localToParent(localBounds.getMinX(), localBounds.getMaxY(), localBounds.getMinZ());
Point3D p4 = localToParent(localBounds.getMinX(), localBounds.getMaxY(), localBounds.getMaxZ());
Point3D p5 = localToParent(localBounds.getMaxX(), localBounds.getMaxY(), localBounds.getMinZ());
Point3D p6 = localToParent(localBounds.getMaxX(), localBounds.getMaxY(), localBounds.getMaxZ());
Point3D p7 = localToParent(localBounds.getMaxX(), localBounds.getMinY(), localBounds.getMinZ());
Point3D p8 = localToParent(localBounds.getMaxX(), localBounds.getMinY(), localBounds.getMaxZ());
return createBoundingBox(p1, p2, p3, p4, p5, p6, p7, p8);
}
/**
* Copy the localToParent transform into specified transform.
*/
BaseTransform getLocalToParentTransform(BaseTransform tx) {
updateLocalToParentTransform();
tx.setTransform(localToParentTx);
return tx;
}
/**
* Currently used only by AnimationPath.createAnimationPathHelper().
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
public final BaseTransform impl_getLeafTransform() {
return getLocalToParentTransform(TempState.getInstance().leafTx);
}
/**
* Invoked whenever the transforms[] ObservableList changes, or by the transforms
* in that ObservableList whenever they are changed.
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
public void impl_transformsChanged() {
if (!transformDirty) {
impl_markDirty(DirtyBits.NODE_TRANSFORM);
transformDirty = true;
transformedBoundsChanged();
}
invalidateLocalToParentTransform();
invalidateLocalToSceneTransform();
}
/**
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
public final double impl_getPivotX() {
final Bounds bounds = getLayoutBounds();
return bounds.getMinX() + bounds.getWidth()/2;
}
/**
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
public final double impl_getPivotY() {
final Bounds bounds = getLayoutBounds();
return bounds.getMinY() + bounds.getHeight()/2;
}
/**
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
public final double impl_getPivotZ() {
final Bounds bounds = getLayoutBounds();
return bounds.getMinZ() + bounds.getDepth()/2;
}
/**
* This helper function will update the transform matrix on the peer based
* on the "complete" transform for this node.
*/
void updateLocalToParentTransform() {
if (transformDirty) {
localToParentTx.setToIdentity();
if (getScaleX() != 1 || getScaleY() != 1 || getScaleZ() != 1 || getRotate() != 0) {
// recompute pivotX, pivotY and pivotZ
double pivotX = impl_getPivotX();
double pivotY = impl_getPivotY();
double pivotZ = impl_getPivotZ();
localToParentTx.translate(getTranslateX() + getLayoutX() + pivotX, getTranslateY() + getLayoutY() + pivotY, getTranslateZ() + pivotZ);
localToParentTx.rotate(Math.toRadians(getRotate()), getRotationAxis().getX(), getRotationAxis().getY(), getRotationAxis().getZ());
localToParentTx.scale(getScaleX(), getScaleY(), getScaleZ());
localToParentTx.translate(-pivotX, -pivotY, -pivotZ);
} else {
localToParentTx.translate(getTranslateX() + getLayoutX(), getTranslateY() + getLayoutY(), getTranslateZ());
}
if (impl_hasTransforms()) {
for (Transform t : getTransforms()) {
t.impl_apply(localToParentTx);
}
}
// Check to see whether the node requires mirroring
if (hasMirroring()) {
final double xOffset = getMirroringCenter();
localToParentTx.translate(xOffset, 0, 0);
localToParentTx.scale(-1, 1);
localToParentTx.translate(-xOffset, 0, 0);
}
transformDirty = false;
}
}
private double getMirroringCenter() {
final Scene sceneValue = getScene();
return ((sceneValue != null) && (sceneValue.getRoot() == this))
? sceneValue.getWidth() / 2
: impl_getPivotX();
}
/**
* Transforms in place the specified point from parent coords to local
* coords. Made package private for the sake of testing.
*/
void parentToLocal(com.sun.javafx.geom.Point2D pt) throws NoninvertibleTransformException {
updateLocalToParentTransform();
localToParentTx.inverseTransform(pt, pt);
}
void parentToLocal(com.sun.javafx.geom.Vec3d pt) throws NoninvertibleTransformException {
updateLocalToParentTransform();
localToParentTx.inverseTransform(pt, pt);
}
void sceneToLocal(com.sun.javafx.geom.Point2D pt) throws NoninvertibleTransformException {
if (getParent() != null) {
getParent().sceneToLocal(pt);
}
parentToLocal(pt);
}
void sceneToLocal(com.sun.javafx.geom.Vec3d pt) throws NoninvertibleTransformException {
if (getParent() != null) {
getParent().sceneToLocal(pt);
}
parentToLocal(pt);
}
void localToScene(com.sun.javafx.geom.Point2D pt) {
localToParent(pt);
if (getParent() != null) {
getParent().localToScene(pt);
}
}
void localToScene(com.sun.javafx.geom.Vec3d pt) {
localToParent(pt);
if (getParent() != null) {
getParent().localToScene(pt);
}
}
/***************************************************************************
* *
* Mouse event related APIs *
* *
**************************************************************************/
/**
* Transforms in place the specified point from local coords to parent
* coords. Made package private for the sake of testing.
*/
void localToParent(com.sun.javafx.geom.Point2D pt) {
updateLocalToParentTransform();
localToParentTx.transform(pt, pt);
}
void localToParent(com.sun.javafx.geom.Vec3d pt) {
updateLocalToParentTransform();
localToParentTx.transform(pt, pt);
}
/**
* Finds a top-most child node that contains the given local coordinates.
*
* The result argument is used for storing the picking result.
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
protected void impl_pickNodeLocal(PickRay localPickRay, PickResultChooser result) {
impl_intersects(localPickRay, result);
}
/**
* Finds a top-most child node that intersects the given ray.
*
* The result argument is used for storing the picking result.
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
public final void impl_pickNode(PickRay pickRay, PickResultChooser result) {
// In some conditions we can omit picking this node or subgraph
if (!isVisible() || isDisable() || isMouseTransparent()) {
return;
}
final Vec3d o = pickRay.getOriginNoClone();
final double ox = o.x;
final double oy = o.y;
final double oz = o.z;
final Vec3d d = pickRay.getDirectionNoClone();
final double dx = d.x;
final double dy = d.y;
final double dz = d.z;
updateLocalToParentTransform();
try {
localToParentTx.inverseTransform(o, o);
localToParentTx.inverseDeltaTransform(d, d);
// Delegate to a function which can be overridden by subclasses which
// actually does the pick. The implementation is markedly different
// for leaf nodes vs. parent nodes vs. region nodes.
impl_pickNodeLocal(pickRay, result);
} catch (NoninvertibleTransformException e) {
// in this case we just don't pick anything
}
pickRay.setOrigin(ox, oy, oz);
pickRay.setDirection(dx, dy, dz);
}
/**
* Returns {@code true} if the given ray (start, dir), specified in the
* local coordinate space of this {@code Node}, intersects the
* shape of this {@code Node}. Note that this method does not take visibility
* into account; the test is based on the geometry of this {@code Node} only.
*
* The pickResult is updated if the found intersection is closer than
* the currently held one.
*
* Note that this is a conditional feature. See
* {@link javafx.application.ConditionalFeature#SCENE3D ConditionalFeature.SCENE3D}
* for more information.
*
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
protected final boolean impl_intersects(PickRay pickRay, PickResultChooser pickResult) {
double boundsDistance = impl_intersectsBounds(pickRay);
if (!Double.isNaN(boundsDistance)) {
if (isPickOnBounds()) {
if (pickResult != null) {
pickResult.offer(this, boundsDistance, PickResultChooser.computePoint(pickRay, boundsDistance));
}
return true;
} else {
return impl_computeIntersects(pickRay, pickResult);
}
}
return false;
}
/**
* Computes the intersection of the pickRay with this node.
* The pickResult argument is updated if the found intersection
* is closer than the passed one. On the other hand, the return value
* specifies whether the intersection exists, regardless of its comparison
* with the given pickResult.
*
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
protected boolean impl_computeIntersects(PickRay pickRay, PickResultChooser pickResult) {
double origZ = pickRay.getOriginNoClone().z;
double dirZ = pickRay.getDirectionNoClone().z;
// Handle the case where pickRay is almost parallel to the Z-plane
if (almostZero(dirZ)) {
return false;
}
double t = -origZ / dirZ;
if (t < pickRay.getNearClip() || t > pickRay.getFarClip()) {
return false;
}
double x = pickRay.getOriginNoClone().x + (pickRay.getDirectionNoClone().x * t);
double y = pickRay.getOriginNoClone().y + (pickRay.getDirectionNoClone().y * t);
if (contains((float) x, (float) y)) {
if (pickResult != null) {
pickResult.offer(this, t, PickResultChooser.computePoint(pickRay, t));
}
return true;
}
return false;
}
/**
* Computes the intersection of the pickRay with the bounds of this node.
* The return value is the distance between the camera and the intersection
* point, measured in pickRay direction magnitudes. If there is
* no intersection, it returns NaN.
*
* @param pickRay The pick ray
* @return Distance of the intersection point, a NaN if there
* is no intersection
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
protected final double impl_intersectsBounds(PickRay pickRay) {
final Vec3d dir = pickRay.getDirectionNoClone();
double tmin, tmax;
final Vec3d origin = pickRay.getOriginNoClone();
final double originX = origin.x;
final double originY = origin.y;
final double originZ = origin.z;
final TempState tempState = TempState.getInstance();
BaseBounds tempBounds = tempState.bounds;
tempBounds = getLocalBounds(tempBounds,
BaseTransform.IDENTITY_TRANSFORM);
if (dir.x == 0.0 && dir.y == 0.0) {
// fast path for the usual 2D picking
if (dir.z == 0.0) {
return Double.NaN;
}
if (originX < tempBounds.getMinX() ||
originX > tempBounds.getMaxX() ||
originY < tempBounds.getMinY() ||
originY > tempBounds.getMaxY()) {
return Double.NaN;
}
final double invDirZ = 1.0 / dir.z;
final boolean signZ = invDirZ < 0.0;
final double minZ = tempBounds.getMinZ();
final double maxZ = tempBounds.getMaxZ();
tmin = ((signZ ? maxZ : minZ) - originZ) * invDirZ;
tmax = ((signZ ? minZ : maxZ) - originZ) * invDirZ;
} else if (tempBounds.getDepth() == 0.0) {
// fast path for 3D picking of 2D bounds
if (almostZero(dir.z)) {
return Double.NaN;
}
final double t = (tempBounds.getMinZ() - originZ) / dir.z;
final double x = originX + (dir.x * t);
final double y = originY + (dir.y * t);
if (x < tempBounds.getMinX() ||
x > tempBounds.getMaxX() ||
y < tempBounds.getMinY() ||
y > tempBounds.getMaxY()) {
return Double.NaN;
}
tmin = tmax = t;
} else {
final double invDirX = dir.x == 0.0 ? Double.POSITIVE_INFINITY : (1.0 / dir.x);
final double invDirY = dir.y == 0.0 ? Double.POSITIVE_INFINITY : (1.0 / dir.y);
final double invDirZ = dir.z == 0.0 ? Double.POSITIVE_INFINITY : (1.0 / dir.z);
final boolean signX = invDirX < 0.0;
final boolean signY = invDirY < 0.0;
final boolean signZ = invDirZ < 0.0;
final double minX = tempBounds.getMinX();
final double minY = tempBounds.getMinY();
final double maxX = tempBounds.getMaxX();
final double maxY = tempBounds.getMaxY();
tmin = Double.NEGATIVE_INFINITY;
tmax = Double.POSITIVE_INFINITY;
if (Double.isInfinite(invDirX)) {
if (minX <= originX && maxX >= originX) {
// move on, we are inside for the whole length
} else {
return Double.NaN;
}
} else {
tmin = ((signX ? maxX : minX) - originX) * invDirX;
tmax = ((signX ? minX : maxX) - originX) * invDirX;
}
if (Double.isInfinite(invDirY)) {
if (minY <= originY && maxY >= originY) {
// move on, we are inside for the whole length
} else {
return Double.NaN;
}
} else {
final double tymin = ((signY ? maxY : minY) - originY) * invDirY;
final double tymax = ((signY ? minY : maxY) - originY) * invDirY;
if ((tmin > tymax) || (tymin > tmax)) {
return Double.NaN;
}
if (tymin > tmin) {
tmin = tymin;
}
if (tymax < tmax) {
tmax = tymax;
}
}
final double minZ = tempBounds.getMinZ();
final double maxZ = tempBounds.getMaxZ();
if (Double.isInfinite(invDirZ)) {
if (minZ <= originZ && maxZ >= originZ) {
// move on, we are inside for the whole length
} else {
return Double.NaN;
}
} else {
final double tzmin = ((signZ ? maxZ : minZ) - originZ) * invDirZ;
final double tzmax = ((signZ ? minZ : maxZ) - originZ) * invDirZ;
if ((tmin > tzmax) || (tzmin > tmax)) {
return Double.NaN;
}
if (tzmin > tmin) {
tmin = tzmin;
}
if (tzmax < tmax) {
tmax = tzmax;
}
}
}
// For clip we use following semantics: pick the node normally
// if there is an intersection with the clip node. We don't consider
// clip node distance.
Node clip = getClip();
if (clip != null) {
final double dirX = dir.x;
final double dirY = dir.y;
final double dirZ = dir.z;
clip.updateLocalToParentTransform();
boolean hitClip = true;
try {
clip.localToParentTx.inverseTransform(origin, origin);
clip.localToParentTx.inverseDeltaTransform(dir, dir);
} catch (NoninvertibleTransformException e) {
hitClip = false;
}
hitClip = hitClip && clip.impl_intersects(pickRay, null);
pickRay.setOrigin(originX, originY, originZ);
pickRay.setDirection(dirX, dirY, dirZ);
if (!hitClip) {
return Double.NaN;
}
}
if (Double.isInfinite(tmin) || Double.isNaN(tmin)) {
// We've got a nonsense pick ray or bounds.
return Double.NaN;
}
final double minDistance = pickRay.getNearClip();
final double maxDistance = pickRay.getFarClip();
if (tmin < minDistance) {
if (tmax >= minDistance && tmax <= maxDistance) {
// we are inside bounds
return 0.0;
} else {
return Double.NaN;
}
} else if (tmin > maxDistance) {
return Double.NaN;
}
return tmin;
}
// Good to find a home for commonly use util. code such as EPS.
// and almostZero. This code currently defined in multiple places,
// such as Affine3D and GeneralTransform3D.
private static final double EPSILON_ABSOLUTE = 1.0e-5;
static boolean almostZero(double a) {
return ((a < EPSILON_ABSOLUTE) && (a > -EPSILON_ABSOLUTE));
}
/***************************************************************************
* *
* Transformations *
* *
**************************************************************************/
/**
* Defines the ObservableList of {@link javafx.scene.transform.Transform} objects
* to be applied to this {@code Node}. This ObservableList of transforms is applied
* before {@link #translateXProperty translateX}, {@link #translateYProperty translateY}, {@link #scaleXProperty scaleX}, and
* {@link #scaleYProperty scaleY}, {@link #rotateProperty rotate} transforms.
*
* @defaultValue empty
*/
public final ObservableList getTransforms() {
return transformsProperty();
}
private ObservableList transformsProperty() {
return getNodeTransformation().getTransforms();
}
public final void setTranslateX(double value) {
translateXProperty().set(value);
}
public final double getTranslateX() {
return (nodeTransformation == null)
? DEFAULT_TRANSLATE_X
: nodeTransformation.getTranslateX();
}
/**
* Defines the x coordinate of the translation that is added to this {@code Node}'s
* transform.
*
* The node's final translation will be computed as {@link #layoutXProperty layoutX} + {@code translateX},
* where {@code layoutX} establishes the node's stable position and {@code translateX}
* optionally makes dynamic adjustments to that position.
*
* This variable can be used to alter the location of a node without disturbing
* its {@link #layoutBoundsProperty layoutBounds}, which makes it useful for animating a node's location.
*
* @defaultValue 0
*/
public final DoubleProperty translateXProperty() {
return getNodeTransformation().translateXProperty();
}
public final void setTranslateY(double value) {
translateYProperty().set(value);
}
public final double getTranslateY() {
return (nodeTransformation == null)
? DEFAULT_TRANSLATE_Y
: nodeTransformation.getTranslateY();
}
/**
* Defines the y coordinate of the translation that is added to this {@code Node}'s
* transform.
*
* The node's final translation will be computed as {@link #layoutYProperty layoutY} + {@code translateY},
* where {@code layoutY} establishes the node's stable position and {@code translateY}
* optionally makes dynamic adjustments to that position.
*
* This variable can be used to alter the location of a node without disturbing
* its {@link #layoutBoundsProperty layoutBounds}, which makes it useful for animating a node's location.
*
* @defaultValue 0
*/
public final DoubleProperty translateYProperty() {
return getNodeTransformation().translateYProperty();
}
public final void setTranslateZ(double value) {
translateZProperty().set(value);
}
public final double getTranslateZ() {
return (nodeTransformation == null)
? DEFAULT_TRANSLATE_Z
: nodeTransformation.getTranslateZ();
}
/**
* Defines the Z coordinate of the translation that is added to the
* transformed coordinates of this {@code Node}. This value will be added
* to any translation defined by the {@code transforms} ObservableList and
* {@code layoutZ}.
*
* This variable can be used to alter the location of a Node without
* disturbing its layout bounds, which makes it useful for animating a
* node's location.
*
* Note that this is a conditional feature. See
* {@link javafx.application.ConditionalFeature#SCENE3D ConditionalFeature.SCENE3D}
* for more information.
*
* @defaultValue 0
*/
public final DoubleProperty translateZProperty() {
return getNodeTransformation().translateZProperty();
}
public final void setScaleX(double value) {
scaleXProperty().set(value);
}
public final double getScaleX() {
return (nodeTransformation == null) ? DEFAULT_SCALE_X
: nodeTransformation.getScaleX();
}
/**
* Defines the factor by which coordinates are scaled about the center of the
* object along the X axis of this {@code Node}. This is used to stretch or
* animate the node either manually or by using an animation.
*
* This scale factor is not included in {@link #layoutBoundsProperty layoutBounds} by
* default, which makes it ideal for scaling the entire node after
* all effects and transforms have been taken into account.
*
* The pivot point about which the scale occurs is the center of the
* untransformed {@link #layoutBoundsProperty layoutBounds}.
*
* @defaultValue 1.0
*/
public final DoubleProperty scaleXProperty() {
return getNodeTransformation().scaleXProperty();
}
public final void setScaleY(double value) {
scaleYProperty().set(value);
}
public final double getScaleY() {
return (nodeTransformation == null) ? DEFAULT_SCALE_Y
: nodeTransformation.getScaleY();
}
/**
* Defines the factor by which coordinates are scaled about the center of the
* object along the Y axis of this {@code Node}. This is used to stretch or
* animate the node either manually or by using an animation.
*
* This scale factor is not included in {@link #layoutBoundsProperty layoutBounds} by
* default, which makes it ideal for scaling the entire node after
* all effects and transforms have been taken into account.
*
* The pivot point about which the scale occurs is the center of the
* untransformed {@link #layoutBoundsProperty layoutBounds}.
*
* @defaultValue 1.0
*/
public final DoubleProperty scaleYProperty() {
return getNodeTransformation().scaleYProperty();
}
public final void setScaleZ(double value) {
scaleZProperty().set(value);
}
public final double getScaleZ() {
return (nodeTransformation == null) ? DEFAULT_SCALE_Z
: nodeTransformation.getScaleZ();
}
/**
* Defines the factor by which coordinates are scaled about the center of the
* object along the Z axis of this {@code Node}. This is used to stretch or
* animate the node either manually or by using an animation.
*
* This scale factor is not included in {@link #layoutBoundsProperty layoutBounds} by
* default, which makes it ideal for scaling the entire node after
* all effects and transforms have been taken into account.
*
* The pivot point about which the scale occurs is the center of the
* rectangular bounds formed by taking {@link #boundsInLocalProperty boundsInLocal} and applying
* all the transforms in the {@link #getTransforms transforms} ObservableList.
*
* Note that this is a conditional feature. See
* {@link javafx.application.ConditionalFeature#SCENE3D ConditionalFeature.SCENE3D}
* for more information.
*
* @defaultValue 1.0
*/
public final DoubleProperty scaleZProperty() {
return getNodeTransformation().scaleZProperty();
}
public final void setRotate(double value) {
rotateProperty().set(value);
}
public final double getRotate() {
return (nodeTransformation == null) ? DEFAULT_ROTATE
: nodeTransformation.getRotate();
}
/**
* Defines the angle of rotation about the {@code Node}'s center, measured in
* degrees. This is used to rotate the {@code Node}.
*
* This rotation factor is not included in {@link #layoutBoundsProperty layoutBounds} by
* default, which makes it ideal for rotating the entire node after
* all effects and transforms have been taken into account.
*
* The pivot point about which the rotation occurs is the center of the
* untransformed {@link #layoutBoundsProperty layoutBounds}.
*
* Note that because the pivot point is computed as the center of this
* {@code Node}'s layout bounds, any change to the layout bounds will cause
* the pivot point to change, which can move the object. For a leaf node,
* any change to the geometry will cause the layout bounds to change.
* For a group node, any change to any of its children, including a
* change in a child's geometry, clip, effect, position, orientation, or
* scale, will cause the group's layout bounds to change. If this movement
* of the pivot point is not
* desired, applications should instead use the Node's {@link #getTransforms transforms}
* ObservableList, and add a {@link javafx.scene.transform.Rotate} transform,
* which has a user-specifiable pivot point.
*
* @defaultValue 0.0
*/
public final DoubleProperty rotateProperty() {
return getNodeTransformation().rotateProperty();
}
public final void setRotationAxis(Point3D value) {
rotationAxisProperty().set(value);
}
public final Point3D getRotationAxis() {
return (nodeTransformation == null)
? DEFAULT_ROTATION_AXIS
: nodeTransformation.getRotationAxis();
}
/**
* Defines the axis of rotation of this {@code Node}.
*
* Note that this is a conditional feature. See
* {@link javafx.application.ConditionalFeature#SCENE3D ConditionalFeature.SCENE3D}
* for more information.
*
* @defaultValue Rotate.Z_AXIS
*/
public final ObjectProperty rotationAxisProperty() {
return getNodeTransformation().rotationAxisProperty();
}
/**
* An affine transform that holds the computed local-to-parent transform.
* This is the concatenation of all transforms in this node, including all
* of the convenience transforms.
* @since JavaFX 2.2
*/
public final ReadOnlyObjectProperty localToParentTransformProperty() {
return getNodeTransformation().localToParentTransformProperty();
}
private void invalidateLocalToParentTransform() {
if (nodeTransformation != null) {
nodeTransformation.invalidateLocalToParentTransform();
}
}
public final Transform getLocalToParentTransform() {
return localToParentTransformProperty().get();
}
/**
* An affine transform that holds the computed local-to-scene transform.
* This is the concatenation of all transforms in this node's parents and
* in this node, including all of the convenience transforms.
*
*
* Note that when you register a listener or a binding to this property,
* it needs to listen for invalidation on all its parents to the root node.
* This means that registering a listener on this
* property on many nodes may negatively affect performance of
* transformation changes in their common parents.
*
* @since JavaFX 2.2
*/
public final ReadOnlyObjectProperty localToSceneTransformProperty() {
return getNodeTransformation().localToSceneTransformProperty();
}
private void invalidateLocalToSceneTransform() {
if (nodeTransformation != null) {
nodeTransformation.invalidateLocalToSceneTransform();
}
}
public final Transform getLocalToSceneTransform() {
return localToSceneTransformProperty().get();
}
private NodeTransformation nodeTransformation;
private NodeTransformation getNodeTransformation() {
if (nodeTransformation == null) {
nodeTransformation = new NodeTransformation();
}
return nodeTransformation;
}
/**
* @treatAsPrivate implementation detail
* @deprecated This is an internal API that is not intended for use and will be removed in the next version
*/
@Deprecated
public boolean impl_hasTransforms() {
return (nodeTransformation != null)
&& nodeTransformation.hasTransforms();
}
// for tests only
Transform getCurrentLocalToSceneTransformState() {
if (nodeTransformation == null ||
nodeTransformation.localToSceneTransform == null) {
return null;
}
return nodeTransformation.localToSceneTransform.transform;
}
private static final double DEFAULT_TRANSLATE_X = 0;
private static final double DEFAULT_TRANSLATE_Y = 0;
private static final double DEFAULT_TRANSLATE_Z = 0;
private static final double DEFAULT_SCALE_X = 1;
private static final double DEFAULT_SCALE_Y = 1;
private static final double DEFAULT_SCALE_Z = 1;
private static final double DEFAULT_ROTATE = 0;
private static final Point3D DEFAULT_ROTATION_AXIS = Rotate.Z_AXIS;
private final class NodeTransformation {
private DoubleProperty translateX;
private DoubleProperty translateY;
private DoubleProperty translateZ;
private DoubleProperty scaleX;
private DoubleProperty scaleY;
private DoubleProperty scaleZ;
private DoubleProperty rotate;
private ObjectProperty rotationAxis;
private ObservableList transforms;
private LazyTransformProperty localToParentTransform;
private LazyTransformProperty localToSceneTransform;
private int listenerReasons = 0;
private InvalidationListener localToSceneInvLstnr;
private InvalidationListener getLocalToSceneInvalidationListener() {
if (localToSceneInvLstnr == null) {
localToSceneInvLstnr = new InvalidationListener() {
@Override
public void invalidated(Observable observable) {
invalidateLocalToSceneTransform();
}
};
}
return localToSceneInvLstnr;
}
public void incListenerReasons() {
if (listenerReasons == 0) {
Node n = Node.this.getParent();
if (n != null) {
n.localToSceneTransformProperty().addListener(
getLocalToSceneInvalidationListener());
}
}
listenerReasons++;
}
public void decListenerReasons() {
listenerReasons--;
if (listenerReasons == 0) {
Node n = Node.this.getParent();
if (n != null) {
n.localToSceneTransformProperty().removeListener(
getLocalToSceneInvalidationListener());
}
}
}
public final Transform getLocalToParentTransform() {
return localToParentTransformProperty().get();
}
public final ReadOnlyObjectProperty localToParentTransformProperty() {
if (localToParentTransform == null) {
localToParentTransform = new LazyTransformProperty() {
@Override
protected Transform computeTransform(Transform reuse) {
updateLocalToParentTransform();
return TransformUtils.immutableTransform(reuse,
localToParentTx.getMxx(), localToParentTx.getMxy(), localToParentTx.getMxz(), localToParentTx.getMxt(),
localToParentTx.getMyx(), localToParentTx.getMyy(), localToParentTx.getMyz(), localToParentTx.getMyt(),
localToParentTx.getMzx(), localToParentTx.getMzy(), localToParentTx.getMzz(), localToParentTx.getMzt());
}
@Override
protected boolean validityKnown() {
return true;
}
@Override
protected int computeValidity() {
return valid;
}
@Override
public Object getBean() {
return Node.this;
}
@Override
public String getName() {
return "localToParentTransform";
}
};
}
return localToParentTransform;
}
public void invalidateLocalToParentTransform() {
if (localToParentTransform != null) {
localToParentTransform.invalidate();
}
}
public final Transform getLocalToSceneTransform() {
return localToSceneTransformProperty().get();
}
class LocalToSceneTransformProperty extends LazyTransformProperty {
// need this to track number of listeners
private List localToSceneListeners;
// stamps to watch for parent changes when the listeners
// are not present
private long stamp, parentStamp;
@Override
protected Transform computeTransform(Transform reuse) {
stamp++;
updateLocalToParentTransform();
Node parentNode = Node.this.getParent();
if (parentNode != null) {
final LocalToSceneTransformProperty parentProperty =
(LocalToSceneTransformProperty) parentNode.localToSceneTransformProperty();
final Transform parentTransform = parentProperty.getInternalValue();
parentStamp = parentProperty.stamp;
return TransformUtils.immutableTransform(reuse,
parentTransform,
((LazyTransformProperty) localToParentTransformProperty()).getInternalValue());
} else {
return TransformUtils.immutableTransform(reuse,
((LazyTransformProperty) localToParentTransformProperty()).getInternalValue());
}
}
@Override
public Object getBean() {
return Node.this;
}
@Override
public String getName() {
return "localToSceneTransform";
}
@Override
protected boolean validityKnown() {
return listenerReasons > 0;
}
@Override
protected int computeValidity() {
if (valid != VALIDITY_UNKNOWN) {
return valid;
}
Node n = (Node) getBean();
Node parent = n.getParent();
if (parent != null) {
final LocalToSceneTransformProperty parentProperty =
(LocalToSceneTransformProperty) parent.localToSceneTransformProperty();
if (parentStamp != parentProperty.stamp) {
valid = INVALID;
return INVALID;
}
int parentValid = parentProperty.computeValidity();
if (parentValid == INVALID) {
valid = INVALID;
}
return parentValid;
}
// Validity unknown for root means it is valid
return VALID;
}
@Override
public void addListener(InvalidationListener listener) {
incListenerReasons();
if (localToSceneListeners == null) {
localToSceneListeners = new LinkedList