/** The iconifyFrame() code calls this to determine the proper bounds for the desktopIcon. */
protected Rectangle getBoundsForIconOf(JInternalFrame f) {
//
// Get the icon for this internal frame and its preferred size
//
JInternalFrame.JDesktopIcon icon = f.getDesktopIcon();
Dimension prefSize = icon.getPreferredSize();
//
// Get the parent bounds and child components.
//
Container c = f.getParent();
if (c == null) {
c = f.getDesktopIcon().getParent();
}
if (c == null) {
/* the frame has not yet been added to the parent; how about (0,0) ?*/
return new Rectangle(0, 0, prefSize.width, prefSize.height);
}
Rectangle parentBounds = c.getBounds();
Component[] components = c.getComponents();
//
// Iterate through valid default icon locations and return the
// first one that does not intersect any other icons.
//
Rectangle availableRectangle = null;
JInternalFrame.JDesktopIcon currentIcon = null;
int x = 0;
int y = parentBounds.height - prefSize.height;
int w = prefSize.width;
int h = prefSize.height;
boolean found = false;
while (!found) {
availableRectangle = new Rectangle(x, y, w, h);
found = true;
for (int i = 0; i < components.length; i++) {
//
// Get the icon for this component
//
if (components[i] instanceof JInternalFrame) {
currentIcon = ((JInternalFrame) components[i]).getDesktopIcon();
} else if (components[i] instanceof JInternalFrame.JDesktopIcon) {
currentIcon = (JInternalFrame.JDesktopIcon) components[i];
} else
/* found a child that's neither an internal frame nor
an icon. I don't believe this should happen, but at
present it does and causes a null pointer exception.
Even when that gets fixed, this code protects against
the npe. hania */
continue;
//
// If this icon intersects the current location, get next location.
//
if (!currentIcon.equals(icon)) {
if (availableRectangle.intersects(currentIcon.getBounds())) {
found = false;
break;
}
}
}
if (currentIcon == null)
/* didn't find any useful children above. This probably shouldn't
happen, but this check protects against an npe if it ever does
(and it's happening now) */
return availableRectangle;
x += currentIcon.getBounds().width;
if (x + w > parentBounds.width) {
x = 0;
y -= h;
}
}
return (availableRectangle);
}
