Svg2Xaml.SvgFilterElement.ToBitmapEffect C# (CSharp) Méthode

        public BitmapEffect ToBitmapEffect()
        {
            if(Document.Options.IgnoreEffects)
            return null;

              BitmapEffectGroup bitmap_effect_group = new BitmapEffectGroup();

              foreach(SvgFilterEffectBaseElement filter_effect in FilterEffects)
              {
            BitmapEffect bitmap_effect = filter_effect.ToBitmapEffect();
            if(bitmap_effect != null)
              bitmap_effect_group.Children.Add(bitmap_effect);
              }

              if(bitmap_effect_group.Children.Count == 0)
            return null;

              return bitmap_effect_group;
        }

        //==========================================================================
        public virtual Drawing Draw()
        {
            Drawing drawing = GetBaseDrawing();

            if (drawing == null)
            {
                return(null);
            }

            BitmapEffect bitmap_effect = null;

            if (Filter != null)
            {
                if (Document.Elements.ContainsKey(Filter))
                {
                    SvgFilterElement filter_element = Document.Elements[Filter] as SvgFilterElement;
                    if (filter_element != null)
                    {
                        bitmap_effect = filter_element.ToBitmapEffect();
                    }
                }
            }

            Brush opacity_mask = null;

            if (Mask != null)
            {
                SvgMaskElement mask_element = Document.Elements[Mask] as SvgMaskElement;
                if (mask_element != null)
                {
                    opacity_mask = mask_element.GetOpacityMask();
                    if (opacity_mask != null)
                    {
                        if (Transform != null)
                        {
                            opacity_mask.Transform = Transform.ToTransform();
                        }
                    }
                }
            }

            if ((opacity_mask == null) && (bitmap_effect == null))
            {
                return(drawing);
            }


            DrawingGroup drawing_group = new DrawingGroup();

            drawing_group.BitmapEffect = bitmap_effect;
            drawing_group.OpacityMask  = opacity_mask;
            drawing_group.Children.Add(drawing);

            return(drawing_group);
        }