private void HideSelection()
{
if (Selection == null)
{
return;
}
CanvasFractalView.Children.Remove(Selection.View);
Selection = null;
}
private void ImageFractalView_OnMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
HideSelection();
var selectionRect = new Rectangle
{
DataContext = Selection,
Stroke = Brushes.Blue
};
var mouse = e.GetPosition(CanvasFractalView);
Selection = new SelectionRect(selectionRect)
{
X = mouse.X,
Y = mouse.Y
};
var bndX = new Binding("X")
{
Source = Selection
};
selectionRect.SetBinding(Canvas.LeftProperty, bndX);
var bndY = new Binding("Y")
{
Source = Selection
};
selectionRect.SetBinding(Canvas.TopProperty, bndY);
var bndWidth = new Binding("Width")
{
Source = Selection
};
selectionRect.SetBinding(WidthProperty, bndWidth);
var bndHeight = new Binding("Height")
{
Source = Selection
};
selectionRect.SetBinding(HeightProperty, bndHeight);
selectionRect.MouseLeftButtonUp += async(o, args) => { await RefreshView(); };
CanvasFractalView.Children.Add(selectionRect);
}
