private void Cropping_MouseMove(object sender, MouseEventArgs e)
{
if (e.LeftButton == MouseButtonState.Pressed)
{
SelectedAreaChanged?.Invoke(this, e);
}
}
private void AddCrop()
{
if (croppedElement != null)
{
RemoveCrop();
}
if (AreaSelection)
{
Rect rcInterior = new Rect(
uiImage.ActualWidth * 0.2,
uiImage.ActualHeight * 0.2,
uiImage.ActualWidth * 0.6,
uiImage.ActualHeight * 0.6);
AdornerLayer layer = AdornerLayer.GetAdornerLayer(uiImage);
cropping = new CroppingAdorner(uiImage, rcInterior);
cropping.Fill = new SolidColorBrush(Color.FromArgb(128, 0, 0, 0));
layer.Add(cropping);
croppedElement = uiImage;
cropping.MouseMove += Cropping_MouseMove;
SelectedAreaChanged?.Invoke(this, EventArgs.Empty);
}
}
private void UpdateSelectedAreaView()
{
if (ImageViewer != null && ImageViewer.ActiveItem != null && ImageViewer.ActiveItem.Element != null)
{
SelectAreaView view = ImageViewer.ActiveItem.Element as SelectAreaView;
view.SelectAreaRectangle = GetSelectedAreaRectangle(false);
view.ControlPoints = _controlPoints;
SelectedAreaChanged?.Invoke(this, new SelectedAreaChangedEventArgs(view.SelectAreaRectangle));
}
}
private void RemoveCrop()
{
if (croppedElement != null)
{
AdornerLayer layer = AdornerLayer.GetAdornerLayer(croppedElement);
layer.Remove(cropping);
croppedElement = null;
cropping.MouseMove -= Cropping_MouseMove;
SelectedAreaChanged?.Invoke(this, EventArgs.Empty);
}
}