javafx.scene.input.MouseEvent Maven / Gradle / Ivy
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package javafx.scene.input;
import com.sun.javafx.tk.Toolkit;
import javafx.beans.NamedArg;
import javafx.event.EventTarget;
import javafx.event.EventType;
import javafx.geometry.Point3D;
import com.sun.javafx.scene.input.InputEventUtils;
import java.io.IOException;
// PENDING_DOC_REVIEW
/**
* When a mouse event occurs, the top-most node under cursor is picked and
* the event is delivered to it through capturing and bubbling phases
* described at {@link javafx.event.EventDispatcher EventDispatcher}.
*
* The mouse (pointer's) location is available relative to several
* coordinate systems: x,y - relative to the origin of the
* MouseEvent's node, sceneX,sceneY - relative to to the
* origin of the {@code Scene} that contains the node,
* screenX,screenY - relative to origin of the screen that
* contains the mouse pointer.
*
*
Dragging gestures
*
* There are three types of dragging gestures. They are all initiated by
* a mouse press event and terminated as a result of a mouse released
* event, the source node decides which gesture will take place.
*
* The simple press-drag-release gesture is default. It's best used to allow
* changing size of a shape, dragging it around and so on. Whole
* press-drag-release gesture is delivered to one node. When a mouse
* button is pressed, the top-most node is picked and all subsequent
* mouse events are delivered to the same node until the button is released.
* If a mouse clicked event is generated from these events, it is still
* delivered to the same node.
*
* During simple press-drag-release gesture, the other nodes are not involved
* and don't get any events. If these nodes need to be involved in the gesture,
* full press-drag-release gesture has to be activated. This gesture is
* best used for connecting nodes by "wires", dragging nodes to other nodes etc.
* This gesture type is more closely described at
* {@link javafx.scene.input.MouseDragEvent MouseDragEvent} which contains
* the events delivered to the gesture targets.
*
* The third gesture type is platform-supported drag-and-drop gesture. It serves
* best to transfer data and works also between (not necessarily FX)
* applications. This gesture type is more closely described
* at {@link javafx.scene.input.DragEvent DragEvent}.
*
* In a short summary, simple press-drag-release gesture is activated
* automatically when a mouse button is pressed and delivers all
* {@code MouseEvent}s to the gesture source. When you start dragging,
* eventually the {@code DRAG_DETECTED} event arrives. In its handler
* you can either start full press-drag-release gesture by calling
* {@code startFullDrag} method on a node or scene - the {@code MouseDragEvent}s
* start to be delivered to gesture targets, or you can start drag and drop
* gesture by calling {@code startDragAndDrop} method on a node or scene -
* the system switches into the drag and drop mode and {@code DragEvent}s start
* to be delivered instead of {@code MouseEvent}s. If you don't call any of
* those methods, the simple press-drag-release gesture continues.
*
* Note that dragging a finger over touch screen produces mouse dragging events,
* but also scroll gesture events. If it means a conflict in an application
* (the physical dragging action is handled by two different handlers), the
* {@code isSynthesized()} method may be used to detect the problem and make the
* dragging handlers behave accordingly.
*
*
Mouse enter/exit handling
*
* When the mouse enters a node, the node gets {@code MOUSE_ENTERED} event, when
* it leaves, it gets {@code MOUSE_EXITED} event. These events are delivered
* only to the entered/exited node and seemingly don't go through the
* capturing/bubbling phases. This is the most common use-case.
*
* When the capturing or bubbling is desired, there are
* {@code MOUSE_ENTERED_TARGET}/{@code MOUSE_EXITED_TARGET} events. These events
* go through capturing/bubbling phases normally. This means that parent may
* receive the {@code MOUSE_ENTERED_TARGET} event when the mouse entered
* either the parent itself or some of its children. To distinguish between
* these two cases, the event target can be tested on equality with the node.
*
* These two types are closely connected:
* {@code MOUSE_ENTERED}/{@code MOUSE_EXITED} are subtypes
* of {@code MOUSE_ENTERED_TARGET}/{@code MOUSE_EXITED_TARGET}.
* During capturing phase,
* {@code MOUSE_ENTERED_TARGET} is delivered to the
* parents. When the event is delivered to the event target (the node that
* has actually been entered), its type is switched to
* {@code MOUSE_ENTERED}. Then the type is switched back to
* {@code MOUSE_ENTERED_TARGET} for the bubbling phase.
* It's still one event just switching types, so if it's filtered or consumed,
* it affects both event variants. Thanks to the subtype-relationship, a
* {@code MOUSE_ENTERED_TARGET} event handler will receive the
* {@code MOUSE_ENTERED} event on target.
*
*
Notes
*
* - For triggering context menus see the {@link ContextMenuEvent}.
*
* @since JavaFX 2.0
*/
public class MouseEvent extends InputEvent {
private static final long serialVersionUID = 20121107L;
/**
* Common supertype for all mouse event types.
*/
public static final EventType ANY =
new EventType<>(InputEvent.ANY, "MOUSE");
/**
* This event occurs when a mouse button is pressed. This activates a
* press-drag-release gesture, so all subsequent mouse events until
* the button is released are delivered to the same node.
*/
public static final EventType MOUSE_PRESSED =
new EventType<>(MouseEvent.ANY, "MOUSE_PRESSED");
/**
* This event occurs when a mouse button is released. It is delivered
* to the same node where the button has been pressed which activated
* a press-drag-release gesture.
*/
public static final EventType MOUSE_RELEASED =
new EventType<>(MouseEvent.ANY, "MOUSE_RELEASED");
/**
* This event occurs when a mouse button has been clicked (pressed and
* released on the same node). This event provides a button-like behavior
* to any node. Note that even long drags can generate click event (it
* is delivered to the top-most node on which the mouse was both
* pressed and released).
*/
public static final EventType MOUSE_CLICKED =
new EventType<>(MouseEvent.ANY, "MOUSE_CLICKED");
/**
* This event occurs when the mouse enters a node. It's the bubbling variant,
* which is delivered also to all parents of the entered node (unless it
* was consumed). When notifications about mouse entering some of node's
* children are not desired, {@code MOUSE_ENTERED} event handler should
* be used.
*
* @see MouseEvent MouseEvent for more information about mouse entered/exited handling
*/
public static final EventType MOUSE_ENTERED_TARGET =
new EventType<>(MouseEvent.ANY, "MOUSE_ENTERED_TARGET");
/**
* This event occurs when the mouse enters a node. This event type is delivered
* only to the entered node, if parents want to filter it or get the
* bubbling event, they need to use {@code MOUSE_ENTERED_TARGET}.
*
* @see MouseEvent MouseEvent for more information about mouse entered/exited handling
*/
public static final EventType MOUSE_ENTERED =
new EventType<>(MouseEvent.MOUSE_ENTERED_TARGET, "MOUSE_ENTERED");
/**
* This event occurs when the mouse exits a node. It's the bubbling variant,
* which is delivered also to all parents of the exited node (unless it
* was consumed). When notifications about mouse exiting some of node's
* children are not desired, {@code MOUSE_EXITED} event handler should
* be used.
*
* @see MouseEvent MouseEvent for more information about mouse entered/exited handling
*/
public static final EventType MOUSE_EXITED_TARGET =
new EventType<>(MouseEvent.ANY, "MOUSE_EXITED_TARGET");
/**
* This event occurs when the mouse exits a node. This event type is delivered
* only to the exited node, if parents want to filter it or get the
* bubbling event, they need to use {@code MOUSE_EXITED_TARGET}.
*
* @see MouseEvent MouseEvent for more information about mouse entered/exited handling
*/
public static final EventType MOUSE_EXITED =
new EventType<>(MouseEvent.MOUSE_EXITED_TARGET, "MOUSE_EXITED");
/**
* This event occurs when the mouse moves within a node and no buttons
* are pressed. If any mouse button is pressed, MOUSE_DRAGGED event
* occurs instead.
*/
public static final EventType MOUSE_MOVED =
new EventType<>(MouseEvent.ANY, "MOUSE_MOVED");
/**
* This event occurs when the mouse moves with a pressed button.
* It is delivered to the same node where the button has been pressed
* which activated a press-drag-release gesture. It is delivered
* regardless of the mouse being within bounds of the node.
*/
public static final EventType MOUSE_DRAGGED =
new EventType<>(MouseEvent.ANY, "MOUSE_DRAGGED");
/**
* This event is delivered to a node that is identified as a source of a
* dragging gesture. Handler of this event is the only place where
* full press-drag-release gesture or a drag and drop gesture can be
* started (by calling {@link javafx.scene.Node#startFullDrag startFullDrag()}
* of {@link javafx.scene.Node#startDragAndDrop startDragAndDrop()} method).
* If none of them is called, simple press-drag-release gesture will continue.
*
* Note that his event is generated based on dragging the mouse over a
* platform-specific distance threshold. You can modify this behavior
* by calling {@code setDragDetect} method on any MOUSE_PRESSED or
* MOUSE_DRAGGED event.
*
* @see MouseEvent MouseEvent for more details about simple press-drag-release gestures
* @see MouseDragEvent MouseDragEvent for more details about full press-drag-release gestures
* @see DragEvent DragEvent for more details about drag and drop gestures
*/
public static final EventType DRAG_DETECTED =
new EventType<>(MouseEvent.ANY, "DRAG_DETECTED");
/**
* Fills the given event by this event's coordinates recomputed to the given
* source object
* @param newEvent Event whose coordinates are to be filled
* @param newSource Source object to compute coordinates for
*/
void recomputeCoordinatesToSource(MouseEvent oldEvent, Object newSource) {
final Point3D newCoordinates = InputEventUtils.recomputeCoordinates(
pickResult, newSource);
x = newCoordinates.getX();
y = newCoordinates.getY();
z = newCoordinates.getZ();
}
@Override
public EventType getEventType() {
return (EventType) super.getEventType();
}
/**
* Copies this event for a different source and target.
* In most cases you don't need to use this method, it's called
* automatically when you fire the event.
* @param newSource New event source
* @param newTarget New event target
* @return copy of this event for a different source and target
*/
@Override
public MouseEvent copyFor(Object newSource, EventTarget newTarget) {
MouseEvent e = (MouseEvent) super.copyFor(newSource, newTarget);
e.recomputeCoordinatesToSource(this, newSource);
return e;
}
/**
* Creates a copy of the given event with the given fields substituted.
* @param newSource the new source of the copied event
* @param newTarget the new target of the copied event
* @param eventType the new eventType
* @return the event copy with the fields substituted
* @since JavaFX 8.0
*/
public MouseEvent copyFor(Object newSource, EventTarget newTarget, EventType eventType) {
MouseEvent e = copyFor(newSource, newTarget);
e.eventType = eventType;
return e;
}
/**
* Constructs new MouseEvent event with null source and target.
*
* Both {@link #isBackButtonDown()} and {@link #isForwardButtonDown()}
* will return {@literal false} for this event.
*
* @param eventType The type of the event.
* @param x The x with respect to the scene.
* @param y The y with respect to the scene.
* @param screenX The x coordinate relative to screen.
* @param screenY The y coordinate relative to screen.
* @param button the mouse button used
* @param clickCount number of click counts
* @param shiftDown true if shift modifier was pressed.
* @param controlDown true if control modifier was pressed.
* @param altDown true if alt modifier was pressed.
* @param metaDown true if meta modifier was pressed.
* @param primaryButtonDown true if primary button was pressed.
* @param middleButtonDown true if middle button was pressed.
* @param secondaryButtonDown true if secondary button was pressed.
* @param synthesized if this event was synthesized
* @param popupTrigger whether this event denotes a popup trigger for current platform
* @param stillSincePress see {@link #isStillSincePress() }
* @param pickResult pick result. Can be null, in this case a 2D pick result
* without any further values is constructed
* based on the scene coordinates
* @since JavaFX 8.0
*/
public MouseEvent(
@NamedArg("eventType") EventType eventType,
@NamedArg("x") double x, @NamedArg("y") double y,
@NamedArg("screenX") double screenX, @NamedArg("screenY") double screenY,
@NamedArg("button") MouseButton button,
@NamedArg("clickCount") int clickCount,
@NamedArg("shiftDown") boolean shiftDown,
@NamedArg("controlDown") boolean controlDown,
@NamedArg("altDown") boolean altDown,
@NamedArg("metaDown") boolean metaDown,
@NamedArg("primaryButtonDown") boolean primaryButtonDown,
@NamedArg("middleButtonDown") boolean middleButtonDown,
@NamedArg("secondaryButtonDown") boolean secondaryButtonDown,
@NamedArg("synthesized") boolean synthesized,
@NamedArg("popupTrigger") boolean popupTrigger,
@NamedArg("stillSincePress") boolean stillSincePress,
@NamedArg("pickResult") PickResult pickResult) {
this(null, null, eventType, x, y, screenX, screenY, button, clickCount,
shiftDown, controlDown, altDown, metaDown,
primaryButtonDown, middleButtonDown, secondaryButtonDown,
synthesized, popupTrigger, stillSincePress, pickResult);
}
/**
* Constructs new MouseEvent event with null source and target.
* @param eventType The type of the event.
* @param x The x with respect to the scene.
* @param y The y with respect to the scene.
* @param screenX The x coordinate relative to screen.
* @param screenY The y coordinate relative to screen.
* @param button the mouse button used
* @param clickCount number of click counts
* @param shiftDown true if shift modifier was pressed.
* @param controlDown true if control modifier was pressed.
* @param altDown true if alt modifier was pressed.
* @param metaDown true if meta modifier was pressed.
* @param primaryButtonDown true if primary button was pressed.
* @param middleButtonDown true if middle button was pressed.
* @param secondaryButtonDown true if secondary button was pressed.
* @param backButtonDown true if back button was pressed.
* @param forwardButtonDown true if forward button was pressed
* @param synthesized if this event was synthesized
* @param popupTrigger whether this event denotes a popup trigger for current platform
* @param stillSincePress see {@link #isStillSincePress() }
* @param pickResult pick result. Can be null, in this case a 2D pick result
* without any further values is constructed
* based on the scene coordinates
* @since 12
*/
public MouseEvent(
@NamedArg("eventType") EventType eventType,
@NamedArg("x") double x, @NamedArg("y") double y,
@NamedArg("screenX") double screenX, @NamedArg("screenY") double screenY,
@NamedArg("button") MouseButton button,
@NamedArg("clickCount") int clickCount,
@NamedArg("shiftDown") boolean shiftDown,
@NamedArg("controlDown") boolean controlDown,
@NamedArg("altDown") boolean altDown,
@NamedArg("metaDown") boolean metaDown,
@NamedArg("primaryButtonDown") boolean primaryButtonDown,
@NamedArg("middleButtonDown") boolean middleButtonDown,
@NamedArg("secondaryButtonDown") boolean secondaryButtonDown,
@NamedArg("backButtonDown") boolean backButtonDown,
@NamedArg("forwardButtonDown") boolean forwardButtonDown,
@NamedArg("synthesized") boolean synthesized,
@NamedArg("popupTrigger") boolean popupTrigger,
@NamedArg("stillSincePress") boolean stillSincePress,
@NamedArg("pickResult") PickResult pickResult) {
this(null, null, eventType, x, y, screenX, screenY, button, clickCount,
shiftDown, controlDown, altDown, metaDown,
primaryButtonDown, middleButtonDown, secondaryButtonDown,
backButtonDown, forwardButtonDown,
synthesized, popupTrigger, stillSincePress, pickResult);
}
/**
* Constructs new MouseEvent event.
*
* Both {@link #isBackButtonDown()} and {@link #isForwardButtonDown()}
* will return {@literal false} for this event.
*
* @param source the source of the event. Can be null.
* @param target the target of the event. Can be null.
* @param eventType The type of the event.
* @param x The x with respect to the source. Should be in scene coordinates if source == null or source is not a Node.
* @param y The y with respect to the source. Should be in scene coordinates if source == null or source is not a Node.
* @param screenX The x coordinate relative to screen.
* @param screenY The y coordinate relative to screen.
* @param button the mouse button used
* @param clickCount number of click counts
* @param shiftDown true if shift modifier was pressed.
* @param controlDown true if control modifier was pressed.
* @param altDown true if alt modifier was pressed.
* @param metaDown true if meta modifier was pressed.
* @param primaryButtonDown true if primary button was pressed.
* @param middleButtonDown true if middle button was pressed.
* @param secondaryButtonDown true if secondary button was pressed.
* @param synthesized if this event was synthesized
* @param popupTrigger whether this event denotes a popup trigger for current platform
* @param stillSincePress see {@link #isStillSincePress() }
* @param pickResult pick result. Can be null, in this case a 2D pick result
* without any further values is constructed
* based on the scene coordinates and target
* @since JavaFX 8.0
*/
public MouseEvent(@NamedArg("source") Object source, @NamedArg("target") EventTarget target,
@NamedArg("eventType") EventType eventType,
@NamedArg("x") double x, @NamedArg("y") double y,
@NamedArg("screenX") double screenX, @NamedArg("screenY") double screenY,
@NamedArg("button") MouseButton button,
@NamedArg("clickCount") int clickCount,
@NamedArg("shiftDown") boolean shiftDown,
@NamedArg("controlDown") boolean controlDown,
@NamedArg("altDown") boolean altDown,
@NamedArg("metaDown") boolean metaDown,
@NamedArg("primaryButtonDown") boolean primaryButtonDown,
@NamedArg("middleButtonDown") boolean middleButtonDown,
@NamedArg("secondaryButtonDown") boolean secondaryButtonDown,
@NamedArg("synthesized") boolean synthesized,
@NamedArg("popupTrigger") boolean popupTrigger,
@NamedArg("stillSincePress") boolean stillSincePress,
@NamedArg("pickResult") PickResult pickResult) {
this(source, target, eventType, x, y, screenX, screenY, button, clickCount,
shiftDown, controlDown, altDown, metaDown,
primaryButtonDown, middleButtonDown, secondaryButtonDown, false, false,
synthesized, popupTrigger, stillSincePress, pickResult);
}
/**
* Constructs new MouseEvent event.
* @param source the source of the event. Can be null.
* @param target the target of the event. Can be null.
* @param eventType The type of the event.
* @param x The x with respect to the source. Should be in scene coordinates if source == null or source is not a Node.
* @param y The y with respect to the source. Should be in scene coordinates if source == null or source is not a Node.
* @param screenX The x coordinate relative to screen.
* @param screenY The y coordinate relative to screen.
* @param button the mouse button used
* @param clickCount number of click counts
* @param shiftDown true if shift modifier was pressed.
* @param controlDown true if control modifier was pressed.
* @param altDown true if alt modifier was pressed.
* @param metaDown true if meta modifier was pressed.
* @param primaryButtonDown true if primary button was pressed.
* @param middleButtonDown true if middle button was pressed.
* @param secondaryButtonDown true if secondary button was pressed.
* @param backButtonDown true if the back button was pressed
* @param forwardButtonDown true if the forward button was pressed
* @param synthesized if this event was synthesized
* @param popupTrigger whether this event denotes a popup trigger for current platform
* @param stillSincePress see {@link #isStillSincePress() }
* @param pickResult pick result. Can be null, in this case a 2D pick result
* without any further values is constructed
* based on the scene coordinates and target
* @since 12
*/
public MouseEvent(@NamedArg("source") Object source, @NamedArg("target") EventTarget target,
@NamedArg("eventType") EventType eventType,
@NamedArg("x") double x, @NamedArg("y") double y,
@NamedArg("screenX") double screenX, @NamedArg("screenY") double screenY,
@NamedArg("button") MouseButton button,
@NamedArg("clickCount") int clickCount,
@NamedArg("shiftDown") boolean shiftDown,
@NamedArg("controlDown") boolean controlDown,
@NamedArg("altDown") boolean altDown,
@NamedArg("metaDown") boolean metaDown,
@NamedArg("primaryButtonDown") boolean primaryButtonDown,
@NamedArg("middleButtonDown") boolean middleButtonDown,
@NamedArg("secondaryButtonDown") boolean secondaryButtonDown,
@NamedArg("backButtonDown") boolean backButtonDown,
@NamedArg("forwardButtonDown") boolean forwardButtonDown,
@NamedArg("synthesized") boolean synthesized,
@NamedArg("popupTrigger") boolean popupTrigger,
@NamedArg("stillSincePress") boolean stillSincePress,
@NamedArg("pickResult") PickResult pickResult) {
super(source, target, eventType);
this.x = x;
this.y = y;
this.screenX = screenX;
this.screenY = screenY;
this.sceneX = x;
this.sceneY = y;
this.button = button;
this.clickCount = clickCount;
this.shiftDown = shiftDown;
this.controlDown = controlDown;
this.altDown = altDown;
this.metaDown = metaDown;
this.primaryButtonDown = primaryButtonDown;
this.middleButtonDown = middleButtonDown;
this.secondaryButtonDown = secondaryButtonDown;
this.backButtonDown = backButtonDown;
this.forwardButtonDown = forwardButtonDown;
this.synthesized = synthesized;
this.stillSincePress = stillSincePress;
this.popupTrigger = popupTrigger;
this.pickResult = pickResult;
this.pickResult = pickResult != null ? pickResult : new PickResult(target, x, y);
final Point3D p = InputEventUtils.recomputeCoordinates(this.pickResult, null);
this.x = p.getX();
this.y = p.getY();
this.z = p.getZ();
}
/**
* Creates a copy of this mouse event of MouseDragEvent type
* @param e the mouse event to copy
* @param source the new source of the copied event
* @param target the new target of the copied event
* @param type the new MouseDragEvent type
* @param gestureSource the new source of the gesture
* @param pickResult pick result. Can be null, in this case a 2D pick result
* without any further values is constructed
* based on the scene coordinates
* @return new MouseDragEvent that was created from MouseEvent
* @since JavaFX 8.0
*/
public static MouseDragEvent copyForMouseDragEvent(
MouseEvent e,
Object source, EventTarget target,
EventType type,
Object gestureSource, PickResult pickResult) {
MouseDragEvent ev = new MouseDragEvent(source, target,
type, e.sceneX, e.sceneY, e.screenX, e.screenY,
e.button, e.clickCount, e.shiftDown, e.controlDown,
e.altDown, e.metaDown, e.primaryButtonDown, e.middleButtonDown,
e.secondaryButtonDown, e.backButtonDown, e.forwardButtonDown, e.synthesized, e.popupTrigger,
pickResult, gestureSource);
ev.recomputeCoordinatesToSource(e, source);
return ev;
}
@SuppressWarnings("doclint:missing")
private final Flags flags = new Flags();
/**
* Determines whether this event will be followed by {@code DRAG_DETECTED}
* event. It has effect only with {@code MOUSE_PRESSED} and
* {@code MOUSE_DRAGGED} events.
*
* @return true if the {@code DRAG_DETECTED} event will follow
*/
public boolean isDragDetect() {
return flags.dragDetect;
}
/**
* Augments drag detection behavior. The value says whether this event
* will be followed by {@code DRAG_DETECTED} event. It has effect only
* with {@code MOUSE_PRESSED} and {@code MOUSE_DRAGGED} events.
*
* @param dragDetect Whether {@code DRAG_DETECTED} event will follow
*/
public void setDragDetect(boolean dragDetect) {
flags.dragDetect = dragDetect;
}
/**
* Horizontal x position of the event relative to the
* origin of the MouseEvent's node.
*/
private transient double x;
/**
* Horizontal position of the event relative to the
* origin of the MouseEvent's source.
*
* @return horizontal position of the event relative to the
* origin of the MouseEvent's source.
*/
public final double getX() {
return x;
}
/**
* Vertical y position of the event relative to the
* origin of the MouseEvent's node.
*/
private transient double y;
/**
* Vertical position of the event relative to the
* origin of the MouseEvent's source.
*
* @return vertical position of the event relative to the
* origin of the MouseEvent's source.
*/
public final double getY() {
return y;
}
/**
* Depth z position of the event relative to the
* origin of the MouseEvent's node.
*/
private transient double z;
/**
* Depth position of the event relative to the
* origin of the MouseEvent's source.
*
* @return depth position of the event relative to the
* origin of the MouseEvent's source.
* @since JavaFX 8.0
*/
public final double getZ() {
return z;
}
/**
* Absolute horizontal x position of the event.
*/
private final double screenX;
/**
* Returns absolute horizontal position of the event.
* @return absolute horizontal position of the event
*/
public final double getScreenX() {
return screenX;
}
/**
* Absolute vertical y position of the event.
*/
private final double screenY;
/**
* Returns absolute vertical position of the event.
* @return absolute vertical position of the event
*/
public final double getScreenY() {
return screenY;
}
/**
* Horizontal x position of the event relative to the
* origin of the {@code Scene} that contains the MouseEvent's node.
* If the node is not in a {@code Scene}, then the value is relative to
* the boundsInParent of the root-most parent of the MouseEvent's node.
*/
private final double sceneX;
/**
* Returns horizontal position of the event relative to the
* origin of the {@code Scene} that contains the MouseEvent's source.
* If the node is not in a {@code Scene}, then the value is relative to
* the boundsInParent of the root-most parent of the MouseEvent's node.
* Note that in 3D scene, this represents the flat coordinates after
* applying the projection transformations.
*
* @return horizontal position of the event relative to the
* origin of the {@code Scene} that contains the MouseEvent's source
*/
public final double getSceneX() {
return sceneX;
}
/**
* Vertical y position of the event relative to the
* origin of the {@code Scene} that contains the MouseEvent's node.
* If the node is not in a {@code Scene}, then the value is relative to
* the boundsInParent of the root-most parent of the MouseEvent's node.
*/
private final double sceneY;
/**
* Returns vertical position of the event relative to the
* origin of the {@code Scene} that contains the MouseEvent's source.
* If the node is not in a {@code Scene}, then the value is relative to
* the boundsInParent of the root-most parent of the MouseEvent's node.
* Note that in 3D scene, this represents the flat coordinates after
* applying the projection transformations.
*
* @return vertical position of the event relative to the
* origin of the {@code Scene} that contains the MouseEvent's source
*/
public final double getSceneY() {
return sceneY;
}
/**
* Which, if any, of the mouse buttons is responsible for this event.
*/
private final MouseButton button;
/**
* Which, if any, of the mouse buttons is responsible for this event.
*
* @return mouse button whose state change caused this event
*/
public final MouseButton getButton() {
return button;
}
/**
* Number of mouse clicks associated with this event.
* All MOUSE_MOVED events have the clickCount value equal to 0. The
* value is increased with MOUSE_PRESSED event and stays like
* that for all subsequent events till MOUSE_RELEASED, including the
* afterwards generated MOUSE_CLICKED event. The value is increased
* to numbers higher than one if all the events between two subsequent
* presses happen on a small region and in a small time (according
* to native operating system configuration).
*/
private final int clickCount;
/**
* Returns number of mouse clicks associated with this event.
* All MOUSE_MOVED events have the clickCount value equal to 0. The
* value is increased with MOUSE_PRESSED event and stays like
* that for all subsequent events till MOUSE_RELEASED, including the
* afterwards generated MOUSE_CLICKED event. The value is increased
* to numbers higher than one if all the events between two subsequent
* presses happen on a small region and in a small time (according
* to native operating system configuration).
*
* @return number of mouse clicks associated with this event
*/
public final int getClickCount() {
return clickCount;
}
/**
* Whether the mouse cursor left the hysteresis region since the previous
* press.
*/
private final boolean stillSincePress;
/**
* Indicates whether the mouse cursor stayed in the system-provided
* hysteresis area since last pressed event that occurred before this event.
*
* Click event is generated for a node if mouse was both pressed and
* released over the node, regardless of mouse movements between the press
* and release. If a node wants to react differently on a simple click and
* on a mouse drag, it should use a system-supplied short distance
* threshold to decide between click and drag (users often perform
* inadvertent tiny movements during a click). It can be easily achieved
* by ignoring all drags with this method returning {@code true} and
* ignoring all clicks with this method returning {@code false}.
*
* @return true if there were no significant mouse movements (out of
* system hysteresis area) since the last pressed event that occurred
* before this event.
*/
public final boolean isStillSincePress() {
return stillSincePress;
}
/**
* Whether or not the Shift modifier is down on this event.
*/
private final boolean shiftDown;
/**
* Whether or not the Shift modifier is down on this event.
* @return true if the Shift modifier is down on this event
*/
public final boolean isShiftDown() {
return shiftDown;
}
/**
* Whether or not the Control modifier is down on this event.
*/
private final boolean controlDown;
/**
* Whether or not the Control modifier is down on this event.
* @return true if the Control modifier is down on this event
*/
public final boolean isControlDown() {
return controlDown;
}
/**
* Whether or not the Alt modifier is down on this event.
*/
private final boolean altDown;
/**
* Whether or not the Alt modifier is down on this event.
* @return true if the Alt modifier is down on this event
*/
public final boolean isAltDown() {
return altDown;
}
/**
* Whether or not the Meta modifier is down on this event.
*/
private final boolean metaDown;
/**
* Whether or not the Meta modifier is down on this event.
* @return true if the Meta modifier is down on this event
*/
public final boolean isMetaDown() {
return metaDown;
}
@SuppressWarnings("doclint:missing")
private final boolean synthesized;
/**
* Indicates whether this event is synthesized from using a touch screen
* instead of usual mouse event source devices like mouse or track pad.
* When a finger is dragged over a touch screen, both scrolling gesture
* and mouse dragging are produced. If it causes a conflict in an
* application, this flag can be used to tell apart the usual mouse dragging
* from the touch screen dragging already handled as scroll events.
* @return true if this event is synthesized from using a touch screen
* @since JavaFX 2.2
*/
public boolean isSynthesized() {
return synthesized;
}
/**
* Returns whether or not the host platform common shortcut modifier is
* down on this event. This common shortcut modifier is a modifier key which
* is used commonly in shortcuts on the host platform. It is for example
* {@code control} on Windows and {@code meta} (command key) on Mac.
*
* @return {@code true} if the shortcut modifier is down, {@code false}
* otherwise
*/
public final boolean isShortcutDown() {
switch (Toolkit.getToolkit().getPlatformShortcutKey()) {
case SHIFT:
return shiftDown;
case CONTROL:
return controlDown;
case ALT:
return altDown;
case META:
return metaDown;
default:
return false;
}
}
/**
* Whether or not this mouse event is the popup menu
* trigger event for the platform.
*
Note: Popup menus are triggered differently
* on different systems. Therefore, {@code popupTrigger}
* should be checked in both {@code onMousePressed}
* and {@code mouseReleased} for proper cross-platform functionality.
*/
private final boolean popupTrigger;
/**
* Returns {@code true} if this mouse event is the popup menu
* trigger event for the platform.
*
Note: Popup menus are triggered differently
* on different systems. Therefore, {@code popupTrigger}
* should be checked in both {@code onMousePressed}
* and {@code mouseReleased} for proper cross-platform functionality.
*
* @return {@code true} if this mouse event is the popup menu
* trigger event for the platform
* @since JavaFX 8.0
*/
public final boolean isPopupTrigger() {
return popupTrigger;
}
/**
* {@code true} if primary button (button 1, usually the left) is currently
* pressed. Note that this is different from the {@link #getButton() button}
* variable in that the {@code button} variable indicates which button press was
* responsible for this event while this variable indicates whether the
* primary button is depressed.
*/
private final boolean primaryButtonDown;
/**
* Returns {@code true} if primary button (button 1, usually the left)
* is currently pressed. Note that this is different from the
* {@code getButton()} method that indicates which button press was
* responsible for this event while this method indicates whether the
* primary button is depressed.
*
* @return {@code true} if primary button (button 1, usually the left)
* is currently pressed
*/
public final boolean isPrimaryButtonDown() {
return primaryButtonDown;
}
/**
* {@code true} if secondary button (button 3, usually the right) is currently
* pressed. Note that this is different from the {@link #getButton() button}
* variable in that the {@code button} variable indicates which button press was
* responsible for this event while this variable indicates whether the
* primary button is depressed.
*/
private final boolean secondaryButtonDown;
/**
* Returns {@code true} if secondary button (button 3, usually the right)
* is currently pressed. Note that this is different from the
* {@code getButton()} method that indicates which button press was
* responsible for this event while this method indicates whether the
* secondary button is depressed.
*
* @return {@code true} if secondary button (button 3, usually the right)
* is currently pressed
*/
public final boolean isSecondaryButtonDown() {
return secondaryButtonDown;
}
/**
* {@code true} if middle button (button 2) is currently pressed.
* Note that this is different from the {@link #getButton() button} variable in
* that the {@code button} variable indicates which button press was
* responsible for this event while this variable indicates whether the
* middle button is depressed.
*/
private final boolean middleButtonDown;
/**
* Returns {@code true} if middle button (button 2)
* is currently pressed. Note that this is different from the
* {@code getButton()} method that indicates which button press was
* responsible for this event while this method indicates whether the
* middle button is depressed.
*
* @return {@code true} if middle button (button 2) is currently pressed
*/
public final boolean isMiddleButtonDown() {
return middleButtonDown;
}
/**
* {@code true} if back button (button 4) is currently pressed.
* Note that this is different from the {@link #getButton() button} variable in
* that the {@code button} variable indicates which button press was
* responsible for this event while this variable indicates whether the
* back button is depressed.
*/
private final boolean backButtonDown;
/**
* Returns {@code true} if back button (button 4)
* is currently pressed. Note that this is different from the
* {@code getButton()} method that indicates which button press was
* responsible for this event while this method indicates whether the
* back button is depressed.
*
* @return {@code true} if back button (button 4) is currently pressed
* @since 12
*/
public final boolean isBackButtonDown() {
return backButtonDown;
}
/**
* {@code true} if forward button (button 5) is currently pressed.
* Note that this is different from the {@link #getButton() button} variable in
* that the {@code button} variable indicates which button press was
* responsible for this event while this variable indicates whether the
* forward button is depressed.
*/
private final boolean forwardButtonDown;
/**
* Returns {@code true} if forward button (button 5)
* is currently pressed. Note that this is different from the
* {@code getButton()} method that indicates which button press was
* responsible for this event while this method indicates whether the
* back button is depressed.
*
* @return {@code true} if forward button (button 5) is currently pressed
* @since 12
*/
public final boolean isForwardButtonDown() {
return forwardButtonDown;
}
/**
* Returns a string representation of this {@code MouseEvent} object.
* @return a string representation of this {@code MouseEvent} object.
*/
@Override public String toString() {
final StringBuilder sb = new StringBuilder("MouseEvent [");
sb.append("source = ").append(getSource());
sb.append(", target = ").append(getTarget());
sb.append(", eventType = ").append(getEventType());
sb.append(", consumed = ").append(isConsumed());
sb.append(", x = ").append(getX()).append(", y = ").append(getY())
.append(", z = ").append(getZ());
if (getButton() != null) {
sb.append(", button = ").append(getButton());
}
if (getClickCount() > 1) {
sb.append(", clickCount = ").append(getClickCount());
}
if (isPrimaryButtonDown()) {
sb.append(", primaryButtonDown");
}
if (isMiddleButtonDown()) {
sb.append(", middleButtonDown");
}
if (isSecondaryButtonDown()) {
sb.append(", secondaryButtonDown");
}
if (isBackButtonDown()) {
sb.append(", backButtonDown");
}
if (isForwardButtonDown()) {
sb.append(", forwardButtonDown");
}
if (isShiftDown()) {
sb.append(", shiftDown");
}
if (isControlDown()) {
sb.append(", controlDown");
}
if (isAltDown()) {
sb.append(", altDown");
}
if (isMetaDown()) {
sb.append(", metaDown");
}
if (isShortcutDown()) {
sb.append(", shortcutDown");
}
if (isSynthesized()) {
sb.append(", synthesized");
}
sb.append(", pickResult = ").append(getPickResult());
return sb.append("]").toString();
}
/**
* Information about the pick if the picked {@code Node} is a
* {@code Shape3D} node and its pickOnBounds is false.
*/
private PickResult pickResult;
/**
* Returns information about the pick.
*
* @return new PickResult object that contains information about the pick
* @since JavaFX 8.0
*/
public final PickResult getPickResult() {
return pickResult;
}
/**
* These properties need to live in a separate object shared among all the
* copied events to make sure that the values are propagated to the
* original event.
*/
private static class Flags implements Cloneable {
/**
* Whether dragDetected event is going to be sent after this event.
* Applies only to MOUSE_PRESSED and MOUSE_MOVED event types.
*/
boolean dragDetect = true;
@Override
public Flags clone() {
try {
return (Flags) super.clone();
} catch (CloneNotSupportedException e) {
/* won't happen */
return null;
}
}
}
@SuppressWarnings("doclint:missing")
private void readObject(java.io.ObjectInputStream in)
throws IOException, ClassNotFoundException {
in.defaultReadObject();
x = sceneX;
y = sceneY;
}
}