/**
* Adds the specified component to the container.
*
* @param c The component to add.
*/
private void addComponent(JComponent c) {
Container container = window.getContentPane();
Component[] comps = container.getComponents();
boolean in = false;
for (int i = 0; i < comps.length; i++) {
if (comps[i].equals(c)) {
in = true;
break;
}
}
if (!in) {
container.add(c, BorderLayout.CENTER);
window.repaint();
}
}
/**
* Removes the specified component from the container.
*
* @param c The component to remove.
*/
private void removeComponent(JComponent c) {
window.getContentPane().remove(c);
}
/** Builds and lays out the UI. */
private void buildUI() {
Container container = window.getContentPane();
container.add(titleBar, BorderLayout.NORTH);
if (canvas != null) container.add(canvas, BorderLayout.CENTER);
}
