private void dragFrameFaster(JComponent f, int newX, int newY) {
Rectangle previousBounds =
new Rectangle(currentBounds.x, currentBounds.y, currentBounds.width, currentBounds.height);
// move the frame
currentBounds.x = newX;
currentBounds.y = newY;
if (didDrag) {
// Only initiate cleanup if we have actually done a drag.
emergencyCleanup(f);
} else {
didDrag = true;
// We reset the danger field as until now we haven't actually
// moved the internal frame so we don't need to initiate repaint.
((JInternalFrame) f).danger = false;
}
boolean floaterCollision = isFloaterCollision(previousBounds, currentBounds);
// System.out.println(previousBounds);
JComponent parent = (JComponent) f.getParent();
Rectangle visBounds = previousBounds.intersection(desktopBounds);
// System.out.println(previousBounds);
// System.out.println(visBounds);
RepaintManager currentManager = RepaintManager.currentManager(f);
currentManager.beginPaint();
try {
if (!floaterCollision) {
currentManager.copyArea(
parent,
desktopGraphics,
visBounds.x,
visBounds.y,
visBounds.width,
visBounds.height,
newX - previousBounds.x,
newY - previousBounds.y,
true);
}
f.setBounds(currentBounds);
if (floaterCollision) {
// since we couldn't blit we just redraw as fast as possible
// the isDragging mucking is to avoid activating emergency
// cleanup
((JInternalFrame) f).isDragging = false;
parent.paintImmediately(currentBounds);
((JInternalFrame) f).isDragging = true;
}
// fake out the repaint manager. We'll take care of everything
currentManager.markCompletelyClean(parent);
currentManager.markCompletelyClean(f);
// compute the minimal newly exposed area
// if the rects intersect then we use computeDifference. Otherwise
// we'll repaint the entire previous bounds
Rectangle[] dirtyRects = null;
if (previousBounds.intersects(currentBounds)) {
dirtyRects = SwingUtilities.computeDifference(previousBounds, currentBounds);
} else {
dirtyRects = new Rectangle[1];
dirtyRects[0] = previousBounds;
// System.out.println("no intersection");
}
;
// Fix the damage
for (int i = 0; i < dirtyRects.length; i++) {
parent.paintImmediately(dirtyRects[i]);
}
// new areas of blit were exposed
if (!(visBounds.equals(previousBounds))) {
dirtyRects = SwingUtilities.computeDifference(previousBounds, desktopBounds);
for (int i = 0; i < dirtyRects.length; i++) {
dirtyRects[i].x += newX - previousBounds.x;
dirtyRects[i].y += newY - previousBounds.y;
((JInternalFrame) f).isDragging = false;
parent.paintImmediately(dirtyRects[i]);
((JInternalFrame) f).isDragging = true;
// System.out.println(dirtyRects[i]);
}
}
} finally {
currentManager.endPaint();
}
// update window if it's non-opaque
Window topLevel = SwingUtilities.getWindowAncestor(f);
Toolkit tk = Toolkit.getDefaultToolkit();
if (!AWTAccessor.getWindowAccessor().isOpaque(topLevel)
&& (tk instanceof SunToolkit)
&& ((SunToolkit) tk).needUpdateWindow()) {
AWTAccessor.getWindowAccessor().updateWindow(topLevel);
}
}
