public void undoableEditHappened(UndoableEditEvent e) {
UndoManager mgr = Undo.getCurrentUndoMgr();
if (mgr != null && mgr.canRedo()) {
setToolTipText(mgr.getRedoPresentationName());
setEnabled(true);
} else {
setToolTipText(tipStr);
setEnabled(false);
}
}
/**
* Refreshes the undo/redo icons with the last action performed.
*
* @param oUndoManager, the manager to use to check for undo/redo possibilities.
*/
public void refreshUndoRedo(UndoManager oUndoManager) {
// refresh undo
pbUndo.setToolTipText(oUndoManager.getUndoPresentationName());
pbUndo.setEnabled(oUndoManager.canUndo());
// refresh redo
pbRedo.setToolTipText(oUndoManager.getRedoPresentationName());
pbRedo.setEnabled(oUndoManager.canRedo());
}
public void actionPerformed(ActionEvent e) {
UndoManager mgr = Undo.getLastUndoMgr();
if (mgr != null && mgr.canRedo()) mgr.redo();
}