private void updateMenuItems() {
SetRedoMenuItemState cmd =
(SetRedoMenuItemState) CommandManager.getInstance().getCommand("SetRedoMenuItemState");
if (cmd != null) {
cmd.setState(actions2redo() > 0);
cmd.execute();
}
SetUndoMenuItemState cmd2 =
(SetUndoMenuItemState) CommandManager.getInstance().getCommand("SetUndoMenuItemState");
if (cmd2 != null) {
cmd2.setState(actions2undo() > 0);
cmd2.execute();
}
}
public void actionPerformed(ActionEvent event) {
String action = event.getActionCommand();
if (action.equals(colorString)) {
Color newColor = ColorChooser.getColor(colorTitleString, getColor());
if (newColor != null) {
setColor(newColor);
currentColor = newColor;
}
CommandManager.getInstance().execute("RepaintWorkspace");
} else if (action.equals(dashedString)) {
dashed = !dashed;
currentIsDashed = dashed;
CommandManager.getInstance().execute("RepaintWorkspace");
}
}
public static void registerDsListener() {
UndoManager manager = new UndoManager(Constants.DEFAULT_NAME);
instances.put(Constants.DEFAULT_NAME, manager);
GetDsManager command = (GetDsManager) CommandManager.getInstance().getCommand("GetDsManager");
if (command != null) {
command.getManager().addDsEventListener(manager);
}
}