Esempio n. 1
0
        public override void DrawLayer(BitmapCanvas canvas, Matrix3X3 parentMatrix, byte parentAlpha)
        {
            LottieLog.BeginSection("CompositionLayer.Draw");
            canvas.GetClipBounds(out _originalClipRect);
            RectExt.Set(ref _newClipRect, 0, 0, LayerModel.PreCompWidth, LayerModel.PreCompHeight);
            parentMatrix.MapRect(ref _newClipRect);

            for (var i = _layers.Count - 1; i >= 0; i--)
            {
                var nonEmptyClip = true;
                if (!_newClipRect.IsEmpty)
                {
                    nonEmptyClip = canvas.ClipRect(_newClipRect);
                }
                if (nonEmptyClip)
                {
                    var layer = _layers[i];
                    layer.Draw(canvas, parentMatrix, parentAlpha);
                }
            }
            if (!_originalClipRect.IsEmpty)
            {
                canvas.ClipReplaceRect(_originalClipRect);
            }
            LottieLog.EndSection("CompositionLayer.Draw");
        }