/**
* Instructs the layout manager to perform the layout for the specified container.
*
* @param the Container for which this layout manager is being used
*/
public void layoutContainer(Container parent) {
JRootPane root = (JRootPane) parent;
Rectangle b = root.getBounds();
Insets i = root.getInsets();
int nextY = 0;
int w = b.width - i.right - i.left;
int h = b.height - i.top - i.bottom;
if (root.getLayeredPane() != null) {
root.getLayeredPane().setBounds(i.left, i.top, w, h);
}
if (root.getGlassPane() != null) {
root.getGlassPane().setBounds(i.left, i.top, w, h);
}
// Note: This is laying out the children in the layeredPane,
// technically, these are not our children.
if (root.getWindowDecorationStyle() != JRootPane.NONE
&& (root.getUI() instanceof RootPaneUI)) {
JComponent titlePane = ((RootPaneUI) root.getUI()).getTitlePane();
if (titlePane != null) {
Dimension tpd = titlePane.getPreferredSize();
if (tpd != null) {
int tpHeight = tpd.height;
titlePane.setBounds(0, 0, w, tpHeight);
nextY += tpHeight;
}
}
}
if (root.getContentPane() != null) {
root.getContentPane().setBounds(0, nextY, w, h < nextY ? 0 : h - nextY);
}
}
/**
* Sets the window title pane -- the JComponent used to provide a plaf a way to override the
* native operating system's window title pane with one whose look and feel are controlled by the
* plaf. The plaf creates and sets this value; the default is null, implying a native operating
* system window title pane.
*
* @param content the <code>JComponent</code> to use for the window title pane.
*/
private void setTitlePane(JRootPane root, JComponent titlePane) {
JLayeredPane layeredPane = root.getLayeredPane();
JComponent oldTitlePane = getTitlePane();
if (oldTitlePane != null) {
oldTitlePane.setVisible(false);
layeredPane.remove(oldTitlePane);
}
if (titlePane != null) {
layeredPane.add(titlePane, JLayeredPane.FRAME_CONTENT_LAYER);
titlePane.setVisible(true);
}
this.titlePane = titlePane;
}