com.trolltech.qt.gui
Class QGraphicsSceneDragDropEvent

java.lang.Object
  com.trolltech.qt.internal.QSignalEmitterInternal
      com.trolltech.qt.QSignalEmitter
          com.trolltech.qt.QtJambiObject
              com.trolltech.qt.core.QEvent
                  com.trolltech.qt.gui.QGraphicsSceneEvent
                      com.trolltech.qt.gui.QGraphicsSceneDragDropEvent

All Implemented Interfaces:

QtJambiInterface

public class QGraphicsSceneDragDropEvent
extends QGraphicsSceneEvent

The QGraphicsSceneDragDropEvent class provides events for drag and drop in the graphics view framework. QGraphicsView inherits the drag and drop functionality provided by QWidget. When it receives a drag and drop event, it translates it to a QGraphicsSceneDragDropEvent.

QGraphicsSceneDragDropEvent stores events of type GraphicsSceneDragEnter , GraphicsSceneDragLeave , GraphicsSceneDragMove , or GraphicsSceneDrop .

QGraphicsSceneDragDropEvent contains the position of the mouse cursor in both item, scene, and screen coordinates; this can be retrieved with pos(), scenePos(), and screenPos().

The scene sends the event to the first QGraphicsItem under the mouse cursor that accepts drops; a graphics item is set to accept drops with setAcceptDrops().

Nested Class Summary

Nested classes/interfaces inherited from class com.trolltech.qt.core.QEvent

QEvent.Type

Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter

QSignalEmitter.AbstractSignal, QSignalEmitter.PrivateSignal0, QSignalEmitter.PrivateSignal1, QSignalEmitter.PrivateSignal2, QSignalEmitter.PrivateSignal3, QSignalEmitter.PrivateSignal4, QSignalEmitter.PrivateSignal5, QSignalEmitter.PrivateSignal6, QSignalEmitter.PrivateSignal7, QSignalEmitter.PrivateSignal8, QSignalEmitter.PrivateSignal9, QSignalEmitter.Signal0, QSignalEmitter.Signal1, QSignalEmitter.Signal2, QSignalEmitter.Signal3, QSignalEmitter.Signal4, QSignalEmitter.Signal5, QSignalEmitter.Signal6, QSignalEmitter.Signal7, QSignalEmitter.Signal8, QSignalEmitter.Signal9

Nested classes/interfaces inherited from class com.trolltech.qt.internal.QSignalEmitterInternal

com.trolltech.qt.internal.QSignalEmitterInternal.AbstractSignalInternal

Field Summary

Fields inherited from class com.trolltech.qt.internal.QSignalEmitterInternal

currentSender

Method Summary

void	acceptProposedAction() Sets the proposed action as accepted, i.
Qt.MouseButtons	buttons() Returns a Qt.:MouseButtons value indicating which buttons were pressed on the mouse when this mouse event was generated.
Qt.DropAction	dropAction() Returns the action that was performed in this drag and drop.
QMimeData	mimeData() This function returns the MIME data of the event.
Qt.KeyboardModifiers	modifiers() Returns the keyboard modifiers that were pressed when the drag and drop event was created.
QPointF	pos() Returns the mouse position of the event relative to the view that sent the event.
Qt.DropActions	possibleActions() Returns the possible drop actions that the drag and drop can result in.
Qt.DropAction	proposedAction() Returns the drop action that is proposed, i.
QPointF	scenePos() Returns the position of the mouse in scene coordinates.
QPoint	screenPos() Returns the position of the mouse relative to the screen.
void	setButtons(Qt.MouseButton[] buttons) This is an overloaded method provided for convenience.
void	setDropAction(Qt.DropAction action) This function lets the receiver of the drop set the drop action that was performed to action, which should be one of the possible actions.
void	setModifiers(Qt.KeyboardModifier[] modifiers) This is an overloaded method provided for convenience.
void	setPossibleActions(Qt.DropAction[] actions) This is an overloaded method provided for convenience.
QWidget	source() This function returns the QGraphicsView that created the QGraphicsSceneDragDropEvent.
java.lang.String	toString() Returns a string representation of the this QGraphicsSceneDragDropEvent.

Methods inherited from class com.trolltech.qt.gui.QGraphicsSceneEvent

widget

Methods inherited from class com.trolltech.qt.core.QEvent

accept, ignore, isAccepted, registerEventType, registerEventType, setAccepted, setT, spontaneous, t, type

Methods inherited from class com.trolltech.qt.QtJambiObject

dispose, disposed, equals, finalize, reassignNativeResources, tr, tr, tr

Methods inherited from class com.trolltech.qt.QSignalEmitter

blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread

Methods inherited from class com.trolltech.qt.internal.QSignalEmitterInternal

__qt_signalInitialization

Methods inherited from class java.lang.Object

clone, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.trolltech.qt.QtJambiInterface

disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership

Method Detail

acceptProposedAction

public final void acceptProposedAction()

Sets the proposed action as accepted, i. , the drop action is set to the proposed action. This is equal to:

    setDropAction(proposedAction());

When using this function, one should not call accept().

See also:

dropAction(), setDropAction(), and proposedAction().

buttons

public final Qt.MouseButtons buttons()

Returns a Qt.:MouseButtons value indicating which buttons were pressed on the mouse when this mouse event was generated.

See also:

Qt::MouseButtons.

dropAction

public final Qt.DropAction dropAction()

Returns the action that was performed in this drag and drop. This should be set by the receiver of the drop and is returned by QDrag::start().

See also:

setDropAction(), and acceptProposedAction().

mimeData

public final QMimeData mimeData()

This function returns the MIME data of the event.

modifiers

public final Qt.KeyboardModifiers modifiers()

Returns the keyboard modifiers that were pressed when the drag and drop event was created.

See also:

Qt::KeyboardModifiers.

pos

public final QPointF pos()

Returns the mouse position of the event relative to the view that sent the event.

See also:

QGraphicsView, screenPos(), and scenePos().

possibleActions

public final Qt.DropActions possibleActions()

Returns the possible drop actions that the drag and drop can result in.

See also:

Qt::DropActions.

proposedAction

public final Qt.DropAction proposedAction()

Returns the drop action that is proposed, i. ., preferred. The action must be one of the possible actions as defined by possibleActions().

See also:

Qt::DropAction , and possibleActions().

scenePos

public final QPointF scenePos()

Returns the position of the mouse in scene coordinates.

See also:

pos(), and screenPos().

screenPos

public final QPoint screenPos()

Returns the position of the mouse relative to the screen.

See also:

pos(), and scenePos().

setButtons

public final void setButtons(Qt.MouseButton[] buttons)

This is an overloaded method provided for convenience.

setDropAction

public final void setDropAction(Qt.DropAction action)

This function lets the receiver of the drop set the drop action that was performed to action, which should be one of the possible actions. Call accept() in stead of acceptProposedAction() if you use this function.

See also:

dropAction(), accept(), and possibleActions().

setModifiers

public final void setModifiers(Qt.KeyboardModifier[] modifiers)

This is an overloaded method provided for convenience.

setPossibleActions

public final void setPossibleActions(Qt.DropAction[] actions)

This is an overloaded method provided for convenience.

source

public final QWidget source()

This function returns the QGraphicsView that created the QGraphicsSceneDragDropEvent.

toString

public java.lang.String toString()

Returns a string representation of the this QGraphicsSceneDragDropEvent.

Overrides:

toString in class QGraphicsSceneEvent