private void DrawSelection(object sender, MouseEventArgs e)
{
if (e.LeftButton == MouseButtonState.Pressed)
{
System.Windows.Point mousePosition = e.GetPosition(_adornedElement);
if (mousePosition.X < _anchorPoint.X)
{
_selectRect.X = mousePosition.X;
}
else
{
_selectRect.X = _anchorPoint.X;
}
if (mousePosition.Y < _anchorPoint.Y)
{
_selectRect.Y = mousePosition.Y;
}
else
{
_selectRect.Y = _anchorPoint.Y;
}
_selectRect.Width = Math.Abs(mousePosition.X - _anchorPoint.X);
_selectRect.Height = Math.Abs(mousePosition.Y - _anchorPoint.Y);
_geometry.Rect = _selectRect;
AdornerLayer layer = AdornerLayer.GetAdornerLayer(_adornedElement);
layer.InvalidateArrange();
}
}
private void DrawSelection(object sender, MouseEventArgs e)
{
if (e.LeftButton == MouseButtonState.Pressed)
{
_selectPosition = e.GetPosition(_adornedElement);
_cursorband.Data = CreateCursorData(_selectPosition);
AdornerLayer layer = AdornerLayer.GetAdornerLayer(_adornedElement);
layer.InvalidateArrange();
OnCursorChanged(_selectPosition);
}
}
protected void updateCursor()
{
System.Windows.Controls.Image imageControl = _adornedElement as System.Windows.Controls.Image;
_cursorband.Data = CreateCursorData(new Point(imageControl.ActualWidth / 2, imageControl.ActualHeight / 2));
if (Visibility.Visible != _cursorband.Visibility)
{
_cursorband.Visibility = Visibility.Visible;
}
AdornerLayer layer = AdornerLayer.GetAdornerLayer(_adornedElement);
layer.InvalidateArrange();
}
/// <summary>
/// Установка курсора в указанное положение.
/// Предназначено для упраления курсором родительским объектом
/// </summary>
/// <param name="p">новое положение курсора в системе координат ImageControl</param>
public void SetCursorPosition(Point p)
{
if (Image == null)
{
return;
}
System.Windows.Controls.Image imageControl = _adornedElement as System.Windows.Controls.Image;
_selectPosition.X = p.X * imageControl.ActualWidth / Image.PixelWidth;
_selectPosition.Y = p.Y * imageControl.ActualHeight / Image.PixelHeight;
_cursorband.Data = CreateCursorData(_selectPosition);
AdornerLayer layer = AdornerLayer.GetAdornerLayer(_adornedElement);
layer.InvalidateArrange();
OnCursorChanged(_selectPosition);
}
private void Invalidate()
{
AdornerLayer layer = AdornerLayer.GetAdornerLayer(_adornedImage);
layer.InvalidateArrange();
}
