Class DragRecognitionSupport
- java.lang.Object
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- org.jdesktop.swingx.plaf.basic.core.DragRecognitionSupport
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public class DragRecognitionSupport extends java.lang.Object
Drag gesture recognition support for classes that have aTransferHandler
. The gesture for a drag in this class is a mouse press followed by movement byDragSource.getDragThreshold()
pixels. An instance of this class is maintained per AppContext, and the public static methods call into the appropriate instance.This is a c&p of core (package private) needed for BasicXListUI. It differs from core in that references to sun packages have been replaced.
- a static method of SunDragSourceContextPeer has been copied into SwingXUtilities and is used here
- the shared instance of this class is maintained in the UIManager instead of per appContext.
- Version:
- 1.2 11/17/05
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Nested Class Summary
Nested Classes Modifier and Type Class Description static interface
DragRecognitionSupport.BeforeDrag
This interface allows us to pass in a handler to mouseDragged, so that we can be notified immediately before a drag begins.
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Field Summary
Fields Modifier and Type Field Description private javax.swing.JComponent
component
private java.awt.event.MouseEvent
dndArmedEvent
private int
motionThreshold
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Constructor Summary
Constructors Constructor Description DragRecognitionSupport()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description private void
clearState()
private static DragRecognitionSupport
getDragRecognitionSupport()
Returns the DragRecognitionSupport for the caller's AppContext.private int
mapDragOperationFromModifiers(java.awt.event.MouseEvent me, javax.swing.TransferHandler th)
static boolean
mouseDragged(java.awt.event.MouseEvent me, DragRecognitionSupport.BeforeDrag bd)
Returns whether or not a drag gesture recognition is ongoing.private boolean
mouseDraggedImpl(java.awt.event.MouseEvent me, DragRecognitionSupport.BeforeDrag bd)
Returns whether or not a drag gesture recognition is ongoing.static boolean
mousePressed(java.awt.event.MouseEvent me)
Returns whether or not the event is potentially part of a drag sequence.private boolean
mousePressedImpl(java.awt.event.MouseEvent me)
Returns whether or not the event is potentially part of a drag sequence.static java.awt.event.MouseEvent
mouseReleased(java.awt.event.MouseEvent me)
If a dnd recognition has been going on, return the MouseEvent that started the recognition.private java.awt.event.MouseEvent
mouseReleasedImpl(java.awt.event.MouseEvent me)
If a dnd recognition has been going on, return the MouseEvent that started the recognition.
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Method Detail
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getDragRecognitionSupport
private static DragRecognitionSupport getDragRecognitionSupport()
Returns the DragRecognitionSupport for the caller's AppContext.
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mousePressed
public static boolean mousePressed(java.awt.event.MouseEvent me)
Returns whether or not the event is potentially part of a drag sequence.
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mouseReleased
public static java.awt.event.MouseEvent mouseReleased(java.awt.event.MouseEvent me)
If a dnd recognition has been going on, return the MouseEvent that started the recognition. Otherwise, return null.
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mouseDragged
public static boolean mouseDragged(java.awt.event.MouseEvent me, DragRecognitionSupport.BeforeDrag bd)
Returns whether or not a drag gesture recognition is ongoing.
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clearState
private void clearState()
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mapDragOperationFromModifiers
private int mapDragOperationFromModifiers(java.awt.event.MouseEvent me, javax.swing.TransferHandler th)
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mousePressedImpl
private boolean mousePressedImpl(java.awt.event.MouseEvent me)
Returns whether or not the event is potentially part of a drag sequence.
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mouseReleasedImpl
private java.awt.event.MouseEvent mouseReleasedImpl(java.awt.event.MouseEvent me)
If a dnd recognition has been going on, return the MouseEvent that started the recognition. Otherwise, return null.
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mouseDraggedImpl
private boolean mouseDraggedImpl(java.awt.event.MouseEvent me, DragRecognitionSupport.BeforeDrag bd)
Returns whether or not a drag gesture recognition is ongoing.
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