Пример #1
0
        private void canvas_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            if (cbxShapes.SelectedIndex == -1)
            {
                return;
            }

            Point          p   = e.GetPosition(canvas);
            DrawableObject obj = (DrawableObject)(cbxShapes.SelectedItem as DrawableObject).Clone();

            obj.StartPoint = new Point2D(p.X, p.Y);
            obj.EndPoint   = new Point2D(p.X, p.Y);
            _drawingObject = obj;

            _suitableDrawing = GetSuitableDrawing(obj);
            if (_suitableDrawing != null)
            {
                _suitableDrawing.Draw(canvas, obj);
                _isDrawing = true;
            }
        }
Пример #2
0
 private void canvas_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
 {
     _drawingObject   = null;
     _suitableDrawing = null;
     _isDrawing       = false;
 }