public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
JInternalFrame jif = null;
if (c instanceof JInternalFrame) {
jif = (JInternalFrame) c;
} else if (c instanceof JInternalFrame.JDesktopIcon) {
jif = ((JInternalFrame.JDesktopIcon) c).getInternalFrame();
} else {
return;
}
if (jif.isSelected()) {
// Set the line color so the line border gets the correct
// color.
lineColor = activeColor;
super.paintBorder(c, g, x, y, width, height);
} else {
lineColor = inactiveColor;
super.paintBorder(c, g, x, y, width, height);
}
}
// Returns true if the associated internal frame has focus.
protected boolean isActiveFrame() {
return frame.isSelected();
}