private void processDrag(final MouseEvent e) {
if (myDragCancelled) return;
if (!isDraggingNow()) {
if (myPressedPoint == null) return;
if (isWithinDeadZone(e)) return;
myDragPane = findLayeredPane(e);
if (myDragPane == null) return;
final BufferedImage image =
new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_INT_ARGB);
paint(image.getGraphics());
myDragButtonImage =
new JLabel(new ImageIcon(image)) {
public String toString() {
return "Image for: " + StripeButton.this.toString();
}
};
myDragPane.add(myDragButtonImage, JLayeredPane.POPUP_LAYER);
myDragButtonImage.setSize(myDragButtonImage.getPreferredSize());
setVisible(false);
myPane.startDrag();
myDragKeyEventDispatcher = new DragKeyEventDispatcher();
KeyboardFocusManager.getCurrentKeyboardFocusManager()
.addKeyEventDispatcher(myDragKeyEventDispatcher);
}
if (!isDraggingNow()) return;
Point xy = SwingUtilities.convertPoint(e.getComponent(), e.getPoint(), myDragPane);
if (myPressedPoint != null) {
xy.x -= myPressedPoint.x;
xy.y -= myPressedPoint.y;
}
myDragButtonImage.setLocation(xy);
SwingUtilities.convertPointToScreen(xy, myDragPane);
final Stripe stripe =
myPane.getStripeFor(new Rectangle(xy, myDragButtonImage.getSize()), (Stripe) getParent());
if (stripe == null) {
if (myLastStripe != null) {
myLastStripe.resetDrop();
}
} else {
if (myLastStripe != null && myLastStripe != stripe) {
myLastStripe.resetDrop();
}
stripe.processDropButton(this, myDragButtonImage, xy);
}
myLastStripe = stripe;
}
private void finishDragging() {
if (!isDraggingNow()) return;
myDragPane.remove(myDragButtonImage);
myDragButtonImage = null;
myPane.stopDrag();
myDragPane.repaint();
setVisible(true);
if (myLastStripe != null) {
myLastStripe.finishDrop();
myLastStripe = null;
}
if (myDragKeyEventDispatcher != null) {
KeyboardFocusManager.getCurrentKeyboardFocusManager()
.removeKeyEventDispatcher(myDragKeyEventDispatcher);
myDragKeyEventDispatcher = null;
}
}
