public void Undo()
{
if (history.Count > 0)
{
var cmd = history.Pop();
BeginDisableCommands(); //prevent text changing into handlers
try {
cmd.Undo();
} finally {
EndDisableCommands();
}
redoStack.Push(cmd);
}
//undo next autoUndo command
if (history.Count > 0)
{
UndoableCommand cmd = history.Peek();
if (cmd.autoUndo || cmd is InsertCharCommand)
{
Undo();
}
}
TextSource.CurrentTB.OnUndoRedoStateChanged();
}
public MultiRangeCommand(UndoableCommand command)
: base(command.ts)
{
this.cmd = command;
range = ts.CurrentTB.Selection.Clone();
}