private void ClearRoiAdorner()
{
var adornerLayer = AdornerLayer.GetAdornerLayer(this.img);
if (null != this.roiAdorner && null != adornerLayer)
{
adornerLayer.Remove(this.roiAdorner);
this.roiAdorner.RoiComplete -= this.OnRoiComplete;
this.roiAdorner = null;
}
this.img.SetValue(OpacityMaskProperty, null);
this.IsDrawingRoi = false;
this.DrawRoiCommand.RaiseCanExecuteChanged();
this.SaveMaskCommand.RaiseCanExecuteChanged();
}
private void ExecuteDrawRoi()
{
if (this.isDrawingRoi)
{
this.ClearRoiAdorner();
}
else
{
var adornerLayer = AdornerLayer.GetAdornerLayer(this.img);
if (null != adornerLayer)
{
this.roiAdorner = new ImageRoiAdorner(img);
this.roiAdorner.Cursor = Cursors.Cross;
this.roiAdorner.RoiComplete += this.OnRoiComplete;
adornerLayer.Add(this.roiAdorner);
this.img.ForceCursor = true;
this.IsDrawingRoi = true;
}
}
}
