/** Sends a figure to the back of the drawing. */
public synchronized void sendToBack(Figure figure) {
if (fFigures.contains(figure)) {
fFigures.removeElement(figure);
fFigures.insertElementAt(figure, 0);
figure.changed();
}
}
/** Brings a figure to the front. */
public synchronized void bringToFront(Figure figure) {
if (fFigures.contains(figure)) {
fFigures.removeElement(figure);
fFigures.addElement(figure);
figure.changed();
}
}
/** Replaces a figure in the drawing without removing it from the drawing. */
public synchronized void replace(Figure figure, Figure replacement) {
int index = fFigures.indexOf(figure);
if (index != -1) {
replacement.addToContainer(this); // will invalidate figure
figure.changed();
fFigures.setElementAt(replacement, index);
}
}