public override HistoryMemento OnExecute(IHistoryWorkspace historyWorkspace)
{
if (!this.QueryCanExecute(historyWorkspace))
{
return(null);
}
HistoryMemento memento = this.OnPreRender(historyWorkspace);
int activeLayerIndex = historyWorkspace.ActiveLayerIndex;
BitmapLayer activeLayer = (BitmapLayer)historyWorkspace.ActiveLayer;
RectInt32 num2 = activeLayer.Bounds();
RectDouble bounds = historyWorkspace.Selection.GetCachedClippingMask().Bounds;
IRenderer <ColorAlpha8> cachedClippingMaskRenderer = historyWorkspace.Selection.GetCachedClippingMaskRenderer(historyWorkspace.ToolSettings.Selection.RenderingQuality.Value);
IEnumerable <IMaskedRenderer <ColorBgra, ColorAlpha8> > contentRenderers = this.OnCreateContentRenderers(historyWorkspace, num2.Width, num2.Height);
ContentBlendMode contentBlendMode = this.GetContentBlendMode();
ContentRendererBgra renderer = new ContentRendererBgra(activeLayer.Surface, contentBlendMode, contentRenderers, cachedClippingMaskRenderer);
base.EnterCriticalRegion();
HistoryMemento memento2 = new ApplyRendererToBitmapLayerHistoryFunction(this.HistoryMementoName, this.HistoryMementoImage, activeLayerIndex, renderer, bounds.Int32Bound, 4, 0x7d0, ActionFlags.None).Execute(historyWorkspace);
HistoryMemento memento3 = this.OnPostRender(historyWorkspace);
HistoryMemento[] items = new HistoryMemento[] { memento, memento2, memento3 };
HistoryMemento[] actions = ArrayUtil.Infer <HistoryMemento>(items).WhereNotNull <HistoryMemento>().ToArrayEx <HistoryMemento>();
if (actions.Length == 0)
{
return(null);
}
return(new CompoundHistoryMemento(this.HistoryMementoName, this.HistoryMementoImage, actions));
}
private BitmapLayerToolLayerOverlay <TTool, TChanges> CreateLayerOverlay(BitmapLayer layer, TChanges changes)
{
IRenderer <ColorAlpha8> renderer;
RectInt32 num;
this.tool.VerifyAccess <TTool>();
if (this.autoClipToSelection)
{
this.GetDefaultContentClip(changes, out num, out renderer);
}
else
{
this.tool.GetContentClip(changes, out num, out renderer);
}
ContentBlendMode blendMode = this.tool.GetBlendMode(changes);
IEnumerable <IMaskedRenderer <ColorBgra, ColorAlpha8> > contentRenderers = this.tool.CreateContentRenderers(layer, changes);
if (contentRenderers == null)
{
ExceptionUtil.ThrowInternalErrorException("OnCreateContentRenderer() returned null");
}
RectInt32 maxRenderBounds = changes.GetMaxRenderBounds();
return(new BitmapLayerToolLayerOverlay <TTool, TChanges>(layer, RectInt32.Intersect(layer.Bounds(), RectInt32.Intersect(num, maxRenderBounds)), changes, blendMode, contentRenderers, renderer));
}
