private void setHeaderComponent(JComponent c) {
boolean doRevalidate = false;
if (myHeaderComponent != null) {
myHeaderPanel.remove(myHeaderComponent);
myHeaderPanel.add(myCaption, BorderLayout.NORTH);
myHeaderComponent = null;
doRevalidate = true;
}
if (c != null) {
myHeaderPanel.remove(myCaption);
myHeaderPanel.add(c, BorderLayout.NORTH);
myHeaderComponent = c;
final Dimension size = myContent.getSize();
if (size.height < c.getPreferredSize().height * 2) {
size.height += c.getPreferredSize().height;
setSize(size);
}
doRevalidate = true;
}
if (doRevalidate) myContent.revalidate();
}
public static Point getCenterOf(final Component aContainer, final JComponent content) {
final JComponent component = getTargetComponent(aContainer);
Point containerScreenPoint = component.getVisibleRect().getLocation();
SwingUtilities.convertPointToScreen(containerScreenPoint, aContainer);
return UIUtil.getCenterPoint(
new Rectangle(containerScreenPoint, component.getVisibleRect().getSize()),
content.getPreferredSize());
}