/**
* Positions the specified dialog at a position relative to its parent.
*
* @param dialog the dialog to be positioned.
* @param horizontalPercent the relative location.
* @param verticalPercent the relative location.
*/
public static void positionDialogRelativeToParent(
final Dialog dialog, final double horizontalPercent, final double verticalPercent) {
final Container parent = dialog.getParent();
if (parent == null || (parent.isVisible() == false)) {
positionFrameOnScreen(dialog, horizontalPercent, verticalPercent);
return;
}
final Dimension d = dialog.getSize();
final Dimension p = parent.getSize();
final int baseX = parent.getX();
final int baseY = parent.getY();
final int parentPointX = baseX + (int) (horizontalPercent * p.width);
final int parentPointY = baseY + (int) (verticalPercent * p.height);
final int dialogPointX = parentPointX - (int) (horizontalPercent * d.width);
final int dialogPointY = parentPointY - (int) (verticalPercent * d.height);
// make sure the dialog fits completely on the screen...
final Rectangle s = parent.getGraphicsConfiguration().getBounds();
final Rectangle r = new Rectangle(dialogPointX, dialogPointY, d.width, d.height);
final Rectangle intersectedDialogBounds = r.intersection(s);
if (intersectedDialogBounds.width < d.width) {
r.x = s.width - d.width;
r.width = d.width;
}
if (intersectedDialogBounds.height < d.height) {
r.y = s.height - d.height;
r.height = d.height;
}
final Rectangle finalIntersection = r.intersection(s);
dialog.setBounds(finalIntersection);
}
/**
* Returns true if popup can fit the screen and the owner's top parent. It determines can popup
* be lightweight or mediumweight.
*/
boolean fitsOnScreen() {
boolean result = false;
Component component = getComponent();
if (owner != null && component != null) {
int popupWidth = component.getWidth();
int popupHeight = component.getHeight();
Container parent = (Container) SwingUtilities.getRoot(owner);
if (parent instanceof JFrame || parent instanceof JDialog || parent instanceof JWindow) {
Rectangle parentBounds = parent.getBounds();
Insets i = parent.getInsets();
parentBounds.x += i.left;
parentBounds.y += i.top;
parentBounds.width -= i.left + i.right;
parentBounds.height -= i.top + i.bottom;
if (JPopupMenu.canPopupOverlapTaskBar()) {
GraphicsConfiguration gc = parent.getGraphicsConfiguration();
Rectangle popupArea = getContainerPopupArea(gc);
result = parentBounds.intersection(popupArea).contains(x, y, popupWidth, popupHeight);
} else {
result = parentBounds.contains(x, y, popupWidth, popupHeight);
}
} else if (parent instanceof JApplet) {
Rectangle parentBounds = parent.getBounds();
Point p = parent.getLocationOnScreen();
parentBounds.x = p.x;
parentBounds.y = p.y;
result = parentBounds.contains(x, y, popupWidth, popupHeight);
}
}
return result;
}