/**
* Moves the visible location of the frame being dragged to the location specified. The means by
* which this occurs can vary depending on the dragging algorithm being used. The actual logical
* location of the frame might not change until <code>endDraggingFrame</code> is called.
*/
public void dragFrame(JComponent f, int newX, int newY) {
if (dragMode == OUTLINE_DRAG_MODE) {
JDesktopPane desktopPane = getDesktopPane(f);
if (desktopPane != null) {
Graphics g = JComponent.safelyGetGraphics(desktopPane);
g.setXORMode(Color.white);
if (currentLoc != null) {
g.drawRect(currentLoc.x, currentLoc.y, f.getWidth() - 1, f.getHeight() - 1);
}
g.drawRect(newX, newY, f.getWidth() - 1, f.getHeight() - 1);
/* Work around for 6635462: XOR mode may cause a SurfaceLost on first use.
* Swing doesn't expect that its XOR drawRect did
* not complete, so believes that on re-entering at
* the next update location, that there is an XOR rect
* to draw out at "currentLoc". But in fact
* it's now got a new clean surface without that rect,
* so drawing it "out" in fact draws it on, leaving garbage.
* So only update/set currentLoc if the draw completed.
*/
sun.java2d.SurfaceData sData = ((sun.java2d.SunGraphics2D) g).getSurfaceData();
if (!sData.isSurfaceLost()) {
currentLoc = new Point(newX, newY);
}
g.dispose();
}
} else if (dragMode == FASTER_DRAG_MODE) {
dragFrameFaster(f, newX, newY);
} else {
setBoundsForFrame(f, newX, newY, f.getWidth(), f.getHeight());
}
}
/**
* Calls <code>setBoundsForFrame</code> with the new values.
*
* @param f the component to be resized
* @param newX the new x-coordinate
* @param newY the new y-coordinate
* @param newWidth the new width
* @param newHeight the new height
*/
public void resizeFrame(JComponent f, int newX, int newY, int newWidth, int newHeight) {
if (dragMode == DEFAULT_DRAG_MODE || dragMode == FASTER_DRAG_MODE) {
setBoundsForFrame(f, newX, newY, newWidth, newHeight);
} else {
JDesktopPane desktopPane = getDesktopPane(f);
if (desktopPane != null) {
Graphics g = JComponent.safelyGetGraphics(desktopPane);
g.setXORMode(Color.white);
if (currentBounds != null) {
g.drawRect(
currentBounds.x, currentBounds.y, currentBounds.width - 1, currentBounds.height - 1);
}
g.drawRect(newX, newY, newWidth - 1, newHeight - 1);
// Work around for 6635462, see comment in dragFrame()
sun.java2d.SurfaceData sData = ((sun.java2d.SunGraphics2D) g).getSurfaceData();
if (!sData.isSurfaceLost()) {
currentBounds = new Rectangle(newX, newY, newWidth, newHeight);
}
g.setPaintMode();
g.dispose();
}
}
}
// implements javax.swing.DesktopManager
public void beginDraggingFrame(JComponent f) {
setupDragMode(f);
if (dragMode == FASTER_DRAG_MODE) {
Component desktop = f.getParent();
floatingItems = findFloatingItems(f);
currentBounds = f.getBounds();
if (desktop instanceof JComponent) {
desktopBounds = ((JComponent) desktop).getVisibleRect();
} else {
desktopBounds = desktop.getBounds();
desktopBounds.x = desktopBounds.y = 0;
}
desktopGraphics = JComponent.safelyGetGraphics(desktop);
((JInternalFrame) f).isDragging = true;
didDrag = false;
}
}