public void CommitCommand(CommandBase command)
{
if (_undoCommands.Count == 0)
{
PocketPaintApplication.GetInstance().SaveAsWriteableBitmapToRam();
var w = PocketPaintApplication.GetInstance().Bitmap.PixelWidth;
var h = PocketPaintApplication.GetInstance().Bitmap.PixelHeight;
_commandBitmapDict.Add(command, new WriteableBitmap(w, h));
}
if (HasNext())
{
_redoCommands.Clear();
UndoRedoActionbarManager.GetInstance().Update(UndoRedoActionbarManager.UndoRedoButtonState.DisableRedo);
}
if (_undoCommands.Count != 0 && command is EraserCommand)
{
var c = _undoCommands.Last();
if (c.ToolType != ToolType.Eraser)
{
//PocketPaintApplication.GetInstance().SaveAsWriteableBitmapToRam();
// TODO: _commandBitmapDict.Add(command, new WriteableBitmap(PocketPaintApplication.GetInstance().Bitmap));
var w = PocketPaintApplication.GetInstance().Bitmap.PixelWidth;
var h = PocketPaintApplication.GetInstance().Bitmap.PixelHeight;
_commandBitmapDict.Add(command, new WriteableBitmap(w, h));
}
}
_undoCommands.AddLast(command);
UndoRedoActionbarManager.GetInstance().Update(UndoRedoActionbarManager.UndoRedoButtonState.EnableUndo);
PocketPaintApplication.GetInstance().UnsavedChangesMade = true;
}
public void UnDo()
{
System.Diagnostics.Debug.WriteLine("--UNDO--");
if (HasCommands())
{
Spinner.StartSpinning();
var command = _undoCommands.Last.Value;
_undoCommands.RemoveLast();
if (command is CropCommand || command is FlipCommand || command is MoveCommand || command is RotateCommand || command is RemoveCommand || command is ZoomCommand)
{
var lastCommand = true;
foreach (var undoCommand in _undoCommands)
{
if (undoCommand.GetType() == command.GetType())
{
lastCommand = false;
break;
}
}
if (lastCommand || command is CropCommand || command is MoveCommand || command is RemoveCommand || command is RotateCommand || command is ZoomCommand)
{
command.UnDo();
}
}
if (!HasCommands())
{
UndoRedoActionbarManager.GetInstance().Update(UndoRedoActionbarManager.UndoRedoButtonState.DisableUndo);
}
_redoCommands.AddLast(command);
UndoRedoActionbarManager.GetInstance().Update(UndoRedoActionbarManager.UndoRedoButtonState.EnableRedo);
DoUnDo();
}
}
public void ReDo()
{
System.Diagnostics.Debug.WriteLine("--REDO--");
if (HasNext())
{
Spinner.StartSpinning();
var command = _redoCommands.Last.Value;
_redoCommands.RemoveLast();
var redoCommandsList = new List <CommandBase>();
if (!HasNext())
{
UndoRedoActionbarManager.GetInstance().Update(UndoRedoActionbarManager.UndoRedoButtonState.DisableRedo);
}
_undoCommands.AddLast(command);
UndoRedoActionbarManager.GetInstance().Update(UndoRedoActionbarManager.UndoRedoButtonState.EnableUndo);
redoCommandsList.Add(command);
DoReDo(redoCommandsList);
}
}
public static UndoRedoActionbarManager GetInstance()
{
return(_instance ?? (_instance = new UndoRedoActionbarManager()));
}