本文整理匯總了Java中javax.swing.undo.UndoManager.canUndo方法的典型用法代碼示例。如果您正苦於以下問題：Java UndoManager.canUndo方法的具體用法？Java UndoManager.canUndo怎麽用？Java UndoManager.canUndo使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類javax.swing.undo.UndoManager的用法示例。
在下文中一共展示了UndoManager.canUndo方法的5個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: onUndo
import javax.swing.undo.UndoManager; //導入方法依賴的package包/類
public void onUndo() {
if(undoManager.canUndo() && hasChanges) {
undoManager.undo();
} else {
// HACK need to call parent frames undo if we have no changes
CommonModuleFrame cmf = CommonModuleFrame.getCurrentFrame();
if(cmf == null) return;
final UndoManager cmfUndoManager = cmf.getExtension(UndoManager.class);
if(cmfUndoManager != null && cmfUndoManager.canUndo()) {
cmfUndoManager.undo();
// reset this flag - otherwise the group undo manager
// will attempt to undo with 'nothing' as last value
hasChanges = false;
}
}
}
示例2: undo
import javax.swing.undo.UndoManager; //導入方法依賴的package包/類
public static void undo(Context context, final int count) throws Exception {
final UndoManager undoManager = getValidUndoManager(context);
logUndoRedoOp(context, "UNDO", count);
int cnt = count;
while (undoManager.canUndo() && --cnt >= 0) {
undoManager.undo();
checkContent(context);
}
logPostUndoRedoOp(context, cnt);
}
示例3: run
import javax.swing.undo.UndoManager; //導入方法依賴的package包/類
@Override
protected void run(CsvGridSheetCellValuePanel valuePanel) {
UndoManager um = valuePanel.getUndoManager();
if (um.canUndo()) {
um.undo();
} else {
abort();
}
}
示例4: createUndoAction
import javax.swing.undo.UndoManager; //導入方法依賴的package包/類
@SuppressWarnings("serial")
public static Action createUndoAction(final UndoManager undoManager, String name) {
return new AbstractAction(name) {
public void actionPerformed(ActionEvent arg0) {
if (undoManager.canUndo()) {
undoManager.undo();
}
}
};
}
示例5: actionPerformed
import javax.swing.undo.UndoManager; //導入方法依賴的package包/類
@Override
public void actionPerformed(ActionEvent event) {
try {
UndoManager currentManager = undoManageTeam.getCurrentManager();
if (currentManager.canUndo())
currentManager.undo();
} catch (CannotUndoException exceptionInfo) {
//Ignore the exception.
}
}