?? palettedragginghandler.java
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/*
* PaletteDraggingHandler.java
*
* Created on 2007年8月9日, 下午11:56
*
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
*/
package dyno.swing.designer.beans.toolkit;
import dyno.swing.designer.beans.SwingDesigner;
import java.awt.event.MouseEvent;
import javax.swing.TransferHandler;
import javax.swing.event.MouseInputListener;
/**
*
* @author William Chen
*/
public class PaletteDraggingHandler implements MouseInputListener {
private MouseEvent lastPressEvent;
private SwingDesigner designer;
/** Creates a new instance of PaletteDraggingHandler */
public PaletteDraggingHandler(SwingDesigner designer) {
this.designer=designer;
}
public void mouseClicked(MouseEvent e) {
}
public void mousePressed(MouseEvent e) {
lastPressEvent = e;
}
public void mouseReleased(MouseEvent e) {
lastPressEvent = null;
}
public void mouseEntered(MouseEvent e) {
}
public void mouseExited(MouseEvent e) {
}
public void mouseDragged(MouseEvent e) {
if (lastPressEvent == null) {
return;
}
if (e.getPoint().distance(lastPressEvent.getPoint()) > 5) {
BeanInfoToggleButton button = (BeanInfoToggleButton) e.getSource();
TransferHandler handler = button.getTransferHandler();
handler.exportAsDrag(button, lastPressEvent, TransferHandler.COPY);
designer.startDraggingComponent(button);
lastPressEvent = null;
}
}
public void mouseMoved(MouseEvent e) {
}
}
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