public override void Render(Graphics g)
{
if (shape != null)
{
shape.Draw(g);
}
}
private void canvas_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
Cursor = Cursors.Pen;
curColor = GetRandomColor();
Point curPos = e.GetPosition(canvas);
curShape = curCreator.FactoryMethod(curColor, curPos, curPos);
curShape.Draw(canvas, shapesHistory);
}
private void Window_KeyUp(object sender, KeyEventArgs e)
{
// Рисование разносторонних фигур
if (e.Key == Key.LeftShift && Mouse.LeftButton == MouseButtonState.Pressed)
{
if ((bool)rectangle.IsChecked)
{
curShape.Remove(canvas, shapesHistory);
curShape = new Rectangle(curShape);
curShape.Draw(canvas, shapesHistory);
}
if ((bool)ellipse.IsChecked)
{
curShape.Remove(canvas, shapesHistory);
curShape = new Ellipse(curShape);
curShape.Draw(canvas, shapesHistory);
}
}
}
private void Window_KeyDown(object sender, KeyEventArgs e)
{
// Рисование равносторонних фигур
if (e.Key == Key.LeftShift && Mouse.LeftButton == MouseButtonState.Pressed)
{
if ((bool)rectangle.IsChecked)
{
curShape.Remove(canvas, shapesHistory);
curShape = new Square(curShape);
curShape.Draw(canvas, shapesHistory);
}
if ((bool)ellipse.IsChecked)
{
curShape.Remove(canvas, shapesHistory);
curShape = new Circle(curShape);
curShape.Draw(canvas, shapesHistory);
}
}
// Удаление последней фигуры
if (e.Key == Key.Z && Keyboard.IsKeyDown(Key.LeftCtrl) && canvas.Children.Count != 0)
{
shapesHistory.Last().Remove(canvas, shapesHistory);
if (shapesHistory.Count != 0)
{
curShape = shapesHistory.Last();
}
else
{
curShape = null;
}
}
}
