Beispiel #1
0
        private void pbMain_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Clicks != 1)
            {
                return;
            }
            switch (_drawMode)
            {
            case DrawMode.Undefined:
            case DrawMode.DragAndDrop:
            {
                if (_currentShapeFactory != null)
                {
                    _lastShape = _currentShapeFactory.GetShape(_currentPen, _currentBrush);
                    _lastShape.SetPostition(e.Location);
                    _drawMode = _lastShape.DrawMode();
                    _history.Add(_lastShape);
                    UpdateUndoRedo();
                    pbMain.Invalidate();
                }
                break;
            }

            case DrawMode.ByPoint:
            {
                if (_lastShape != null)
                {
                    _lastShape.AddPoint(e.Location);
                    _drawMode = _lastShape.DrawMode();
                    pbMain.Invalidate();
                }
                break;
            }
            }
        }