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High quality UI controls and other tools to complement the core JavaFX distribution
/**
* Copyright (c) 2014, ControlsFX
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of ControlsFX, any associated website, nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL CONTROLSFX BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package impl.org.controlsfx;
import java.lang.reflect.Method;
import java.util.Collections;
import java.util.List;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Group;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Control;
import javafx.scene.control.Skin;
import javafx.scene.control.SkinBase;
import javafx.scene.layout.Pane;
import javafx.scene.layout.Region;
public class ImplUtils {
private ImplUtils() {
// no-op
}
public static void injectAsRootPane(Scene scene, Parent injectedParent, boolean useReflection) {
Parent originalParent = scene.getRoot();
scene.setRoot(injectedParent);
// Begin Fix Issue #847, see
// https://bitbucket.org/controlsfx/controlsfx/issues/847/validationsupport-messes-up-layout
if (injectedParent instanceof Region) {
Region region = (Region) originalParent;
region.setMaxWidth(Double.MAX_VALUE);
region.setMaxHeight(Double.MAX_VALUE);
}
// End Fix Issue #847
if (originalParent != null) {
getChildren(injectedParent, useReflection).add(0, originalParent);
// copy in layout properties, etc, so that the dialogStack displays
// properly in (hopefully) whatever layout the owner node is in
injectedParent.getProperties().putAll(originalParent.getProperties());
}
}
// parent is where we want to inject the injectedParent. We then need to
// set the child of the injectedParent to include parent.
// The end result is that we've forced in the injectedParent node above parent.
public static void injectPane(Parent parent, Parent injectedParent, boolean useReflection) {
if (parent == null) {
throw new IllegalArgumentException("parent can not be null"); //$NON-NLS-1$
}
List ownerParentChildren = getChildren(parent.getParent(), useReflection);
// we've got the children list, now we need to insert a temporary
// layout container holding our dialogs and opaque layer / effect
// in place of the owner (the owner will become a child of the dialog
// stack)
int ownerPos = ownerParentChildren.indexOf(parent);
ownerParentChildren.remove(ownerPos);
ownerParentChildren.add(ownerPos, injectedParent);
// now we install the parent as a child of the injectedParent
getChildren(injectedParent, useReflection).add(0, parent);
// copy in layout properties, etc, so that the dialogStack displays
// properly in (hopefully) whatever layout the owner node is in
injectedParent.getProperties().putAll(parent.getProperties());
}
public static void stripRootPane(Scene scene, Parent originalParent, boolean useReflection) {
Parent oldParent = scene.getRoot();
getChildren(oldParent, useReflection).remove(originalParent);
originalParent.getStyleClass().remove("root"); //$NON-NLS-1$
scene.setRoot(originalParent);
}
public static List getChildren(Node n, boolean useReflection) {
return n instanceof Parent ? getChildren((Parent)n, useReflection) : Collections.emptyList();
}
public static List getChildren(Parent p, boolean useReflection) {
ObservableList children = null;
// previously we used reflection immediately, now we try to avoid reflection
// by checking the type of the Parent. Still not great...
if (p instanceof Pane) {
// This should cover the majority of layout containers, including
// AnchorPane, FlowPane, GridPane, HBox, Pane, StackPane, TilePane, VBox
children = ((Pane)p).getChildren();
} else if (p instanceof Group) {
children = ((Group)p).getChildren();
} else if (p instanceof Control) {
Control c = (Control) p;
Skin s = c.getSkin();
children = s instanceof SkinBase ? ((SkinBase)s).getChildren() : getChildrenReflectively(p);
} else if (useReflection) {
// we really want to avoid using this!!!!
children = getChildrenReflectively(p);
}
if (children == null) {
throw new RuntimeException("Unable to get children for Parent of type " + p.getClass() + //$NON-NLS-1$
". useReflection is set to " + useReflection); //$NON-NLS-1$
}
return children == null ? FXCollections.emptyObservableList() : children;
}
@SuppressWarnings("unchecked")
public static ObservableList getChildrenReflectively(Parent p) {
ObservableList children = null;
try {
Method getChildrenMethod = Parent.class.getDeclaredMethod("getChildren"); //$NON-NLS-1$
if (getChildrenMethod != null) {
if (! getChildrenMethod.isAccessible()) {
getChildrenMethod.setAccessible(true);
}
children = (ObservableList) getChildrenMethod.invoke(p);
} else {
// uh oh, trouble
}
} catch (ReflectiveOperationException | IllegalArgumentException e) {
throw new RuntimeException("Unable to get children for Parent of type " + p.getClass(), e); //$NON-NLS-1$
}
return children;
}
}