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java.lang.Objectcom.trolltech.qt.internal.QSignalEmitterInternal
com.trolltech.qt.QSignalEmitter
com.trolltech.qt.QtJambiObject
com.trolltech.qt.core.QEvent
com.trolltech.qt.gui.QDropEvent
public class QDropEvent
The QDropEvent class provides an event which is sent when a drag and drop action is completed. When a widget accepts drop events
, it will receive this event if it has accepted the most recent QDragEnterEvent
or QDragMoveEvent
sent to it.
The drop event contains a proposed action, available from proposedAction()
, for the widget to either accept or ignore. If the action can be handled by the widget, you should call the acceptProposedAction()
function. Since the proposed action can be a combination of Qt::DropAction
values, it may be useful to either select one of these values as a default action or ask the user to select their preferred action.
If the proposed drop action is not suitable, perhaps because your custom widget does not support that action, you can replace it with any of the possible drop actions
by calling setDropAction()
with your preferred action. If you set a value that is not present in the bitwise OR combination of values returned by possibleActions()
, the default copy action will be used. Once a replacement drop action has been set, call accept() instead of acceptProposedAction()
to complete the drop operation.
The mimeData()
function provides the data dropped on the widget in a QMimeData
object. This contains information about the MIME type of the data in addition to the data itself.
QMimeData
, QDrag
, and Drag and Drop.
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.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 |
Constructor Summary | |
---|---|
QDropEvent(QPoint pos,
Qt.DropActions actions,
QMimeData data,
Qt.MouseButtons buttons,
Qt.KeyboardModifiers modifiers)
Constructs a drop event of a certain type corresponding to a drop at the point specified by pos in the destination widget's coordinate system. |
|
QDropEvent(QPoint pos,
Qt.DropActions actions,
QMimeData data,
Qt.MouseButtons buttons,
Qt.KeyboardModifiers modifiers,
QEvent.Type type)
Constructs a drop event of a certain type corresponding to a drop at the point specified by pos in the destination widget's coordinate system. |
Method Summary | |
---|---|
void |
acceptProposedAction()
Sets the drop action to be the proposed action. |
protected Qt.DropActions |
act()
|
protected Qt.DropAction |
default_action()
|
protected Qt.DropAction |
drop_action()
|
Qt.DropAction |
dropAction()
Returns the action to be performed on the data by the target. |
Qt.KeyboardModifiers |
keyboardModifiers()
Returns the modifier keys that are pressed. |
protected QMimeData |
mdata()
|
QMimeData |
mimeData()
Returns the data that was dropped on the widget and its associated MIME type information. |
protected Qt.KeyboardModifiers |
modState()
|
Qt.MouseButtons |
mouseButtons()
Returns the mouse buttons that are pressed. |
protected Qt.MouseButtons |
mouseState()
|
protected QPoint |
p()
|
QPoint |
pos()
Returns the position where the drop was made. |
Qt.DropActions |
possibleActions()
Returns an OR-combination of possible drop actions. |
Qt.DropAction |
proposedAction()
Returns the proposed drop action. |
protected void |
setAct(Qt.DropAction[] act)
|
protected void |
setAct(Qt.DropActions act)
|
protected void |
setDefault_action(Qt.DropAction default_action)
|
protected void |
setDrop_action(Qt.DropAction drop_action)
|
void |
setDropAction(Qt.DropAction action)
Sets the action to be performed on the data by the target. |
protected void |
setModState(Qt.KeyboardModifier[] modState)
|
protected void |
setModState(Qt.KeyboardModifiers modState)
|
protected void |
setMouseState(Qt.MouseButton[] mouseState)
|
protected void |
setMouseState(Qt.MouseButtons mouseState)
|
protected void |
setP(QPoint p)
|
QWidget |
source()
If the source of the drag operation is a widget in this application, this function returns that source; otherwise it returns 0. |
java.lang.String |
toString()
|
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 |
Constructor Detail |
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public QDropEvent(QPoint pos, Qt.DropActions actions, QMimeData data, Qt.MouseButtons buttons, Qt.KeyboardModifiers modifiers)
The actions indicate which types of drag and drop operation can be performed, and the drag data is stored as MIME-encoded data in data.
The states of the mouse buttons and keyboard modifiers at the time of the drop are specified by buttons and modifiers.
public QDropEvent(QPoint pos, Qt.DropActions actions, QMimeData data, Qt.MouseButtons buttons, Qt.KeyboardModifiers modifiers, QEvent.Type type)
The actions indicate which types of drag and drop operation can be performed, and the drag data is stored as MIME-encoded data in data.
The states of the mouse buttons and keyboard modifiers at the time of the drop are specified by buttons and modifiers.
Method Detail |
---|
public final void acceptProposedAction()
setDropAction()
, proposedAction()
, and accept()
.
public final Qt.DropAction dropAction()
proposedAction()
if you have called setDropAction()
to explicitly choose a drop action. setDropAction()
.
public final Qt.KeyboardModifiers keyboardModifiers()
public final QMimeData mimeData()
public final Qt.MouseButtons mouseButtons()
public final QPoint pos()
public final Qt.DropActions possibleActions()
dropAction()
.
public final Qt.DropAction proposedAction()
dropAction()
.
public final void setDropAction(Qt.DropAction action)
proposed action
with one of the possible actions
. If you set a drop action that is not one of the possible actions, the drag and drop operation will default to a copy operation.
Once you have supplied a replacement drop action, call accept() instead of acceptProposedAction()
.
dropAction()
.
public final QWidget source()
QDrag
object used instantiate the drag. This is useful if your widget needs special behavior when dragging to itself.
protected final QMimeData mdata()
protected final void setDefault_action(Qt.DropAction default_action)
protected final Qt.DropAction default_action()
protected final void setModState(Qt.KeyboardModifier[] modState)
protected final void setModState(Qt.KeyboardModifiers modState)
protected final Qt.KeyboardModifiers modState()
protected final void setMouseState(Qt.MouseButton[] mouseState)
protected final void setMouseState(Qt.MouseButtons mouseState)
protected final Qt.MouseButtons mouseState()
protected final void setDrop_action(Qt.DropAction drop_action)
protected final Qt.DropAction drop_action()
protected final void setP(QPoint p)
protected final QPoint p()
protected final void setAct(Qt.DropAction[] act)
protected final void setAct(Qt.DropActions act)
protected final Qt.DropActions act()
public java.lang.String toString()
toString
in class QEvent
|
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