/**
* Sets the {@link Dockable} which is shown on this field.
*
* @param figure the new dockable, might be <code>null</code>
*/
public void set(ChessFigure figure) {
ChessFigure old = this.figure;
if (this.figure != null) {
getContentPane().remove(handle.getDisplayer().getComponent());
handle.destroy();
this.figure = null;
this.handle = null;
}
this.figure = figure;
if (this.figure != null) {
DockTitleVersion version = null;
if (controller != null)
version = controller.getDockTitleManager().getVersion("chess-board");
handle = new StationChildHandle(ChessBoard.this, displayerCollection, figure, version);
handle.updateDisplayer();
getContentPane().add(handle.getDisplayer().getComponent());
}
if (old == null && figure != null) usedFieldList.add(this);
else if (old != null && figure == null) usedFieldList.remove(this);
getContentPane().revalidate();
}
/**
* Ensures that the correct {@link DockTitle} for the current {@link #set(ChessFigure) figure}
* is shown.
*/
public void updateTitle() {
if (handle != null) {
if (controller == null) {
handle.setTitleRequest(null);
} else {
DockTitleVersion version = controller.getDockTitleManager().getVersion("chess-board");
handle.setTitleRequest(version);
}
}
}