Сделал так:
| Код |
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfApplication1"
Title="MainWindow" Height="350" Width="525">
<local:DrawingCanvas x:Name="drawingSurface" Background="White" ClipToBounds="True" MouseLeftButtonDown="drawingSurface_MouseLeftButtonDown" MouseDown="drawingSurface_MouseDown"></local:DrawingCanvas>
</Window>
|
Добавил рисование квадратов
| Код |
private Brush drawingBrush = Brushes.AliceBlue;
private Brush selectedDrawingBrush = Brushes.LightGoldenrodYellow;
private Pen drawingPen = new Pen(Brushes.SteelBlue, 3);
private Size squareSize = new Size(30, 30);
// не отлавливает
private void drawingSurface_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
Point pCl = e.GetPosition(drawingSurface);
// Создание, рисование и добавление нового квадрата.
DrawingVisual visual = new DrawingVisual();
DrawSquare(visual, pCl);
drawingSurface.AddVisual(visual);
}
private void DrawSquare(DrawingVisual visual, Point topLeftCorner)
{
using (DrawingContext dc = visual.RenderOpen())
{
Brush brush = drawingBrush;
dc.DrawRectangle(brush, drawingPen,
new Rect(topLeftCorner, squareSize));
}
}
private void drawingSurface_MouseDown(object sender, MouseButtonEventArgs e)
{
Point pCl = e.GetPosition(drawingSurface);
// Создание, рисование и добавление нового квадрата.
DrawingVisual visual = new DrawingVisual();
DrawSquare(visual, pCl);
drawingSurface.AddVisual(visual);
}
|
Нажатие левой кнопки мыши не отлавливает, поэтому добавил просто mouseDown. Квадраты не рисуются, ПОЧЕМУ? |
