/** Resets the <code>Popup</code> to an initial state. */
void reset(Component owner, Component contents, int ownerX, int ownerY) {
super.reset(owner, contents, ownerX, ownerY);
JComponent component = (JComponent) getComponent();
component.setOpaque(contents.isOpaque());
component.setLocation(ownerX, ownerY);
component.add(contents, BorderLayout.CENTER);
contents.invalidate();
pack();
}
/**
* Overridden for performance reasons. See the <a href="#override">Implementation Note</a> for
* more information.
*/
@Override
public boolean isOpaque() {
Color back = getBackground();
Component p = getParent();
if (p != null) {
p = p.getParent();
}
// p should now be the JTable.
boolean colorMatch =
(back != null) && (p != null) && back.equals(p.getBackground()) && p.isOpaque();
return !colorMatch && super.isOpaque();
}
// Overridden for performance reasons. ---->
@Override
public boolean isOpaque() {
Color back = getBackground();
Component p = getParent();
if (Objects.nonNull(p)) {
p = p.getParent();
} // p should now be the JTable.
boolean colorMatch =
Objects.nonNull(back)
&& Objects.nonNull(p)
&& back.equals(p.getBackground())
&& p.isOpaque();
return !colorMatch && super.isOpaque();
}
public static Color getBackgroundColor(Component component) {
if (component == null) return null;
if (component instanceof BackgroundPainter) {
ComponentPainter painter = ((BackgroundPainter) component).getComponentPainter();
if (painter != null) {
Color color = painter.getColor(component);
if (color != null) return color;
}
}
return component.isOpaque()
? component.getBackground()
: getBackgroundColor(component.getParent());
}
