public void ChangeFrame(object sender, CursorEventArgs e)
{
CursorAdorner cusorAdoner = sender as CursorAdorner;
BitmapSource img = cusorAdoner.Image;
double R = img.DpiX * 0.4;
Int32Rect rect = new Int32Rect();
rect.X = (int)(e.Position.X - R);
rect.Y = (int)(e.Position.Y - R);
rect.Width = (int)(2 * R);
rect.Height = (int)(2 * R);
if (rect.X + rect.Width >= img.PixelWidth)
{
rect.X -= (int)(rect.X + rect.Width - img.PixelWidth + 1);
}
if (rect.Y + rect.Height >= img.PixelHeight)
{
rect.Y -= (int)(rect.Y + rect.Height - img.PixelHeight + 1);
}
if (rect.X < 0)
{
rect.Width += rect.X;
if (rect.Width < 1)
{
rect.Width = 1;
}
rect.X = 0;
}
if (rect.Y < 0)
{
rect.Height += rect.Y;
if (rect.Height < 1)
{
rect.Height = 1;
}
rect.Y = 0;
}
System.Windows.Controls.Image imageControl = _adornedElement as System.Windows.Controls.Image;
imageControl.Source = new CroppedBitmap(img, rect);
//if (_cursorband.Data == null)
updateCursor();
}
private void WindowLoaded(object sender, RoutedEventArgs e)
{
AdornerLayer layer = AdornerLayer.GetAdornerLayer(ImageLarge);
CursorSelector = new CursorAdorner(ImageLarge);
layer.Add(CursorSelector);
CursorSelector.Cursorband.Visibility = Visibility.Hidden;
AdornerLayer layerPrecise = AdornerLayer.GetAdornerLayer(ImageSmall);
PreciseSelector = new PreciseAdoner(ImageSmall);
PreciseSelector.Window = this;
layerPrecise.Add(PreciseSelector);
PreciseSelector.Cursorband.Visibility = Visibility.Hidden;
CursorSelector.CursorChanged += new EventHandler <CursorEventArgs>(PreciseSelector.ChangeFrame);
CursorSelector.CursorChanged += new EventHandler <CursorEventArgs>(this.ChangeCursorPosition);
PreciseSelector.CursorChanged += new EventHandler <CursorEventArgs>(CursorSelector.ChangeCursorPosition);
}
