public override HistoryMemento OnExecute(IHistoryWorkspace historyWorkspace)
{
GeometryList cachedClippingMask = historyWorkspace.Selection.GetCachedClippingMask();
if (historyWorkspace.Selection.IsEmpty || (cachedClippingMask.Bounds.Area < 1.0))
{
return(null);
}
Document oldDocument = historyWorkspace.Document;
RectInt32 b = cachedClippingMask.Bounds.GetInt32Bound(1E-05);
RectInt32 oldClipBounds = RectInt32.Intersect(oldDocument.Bounds(), b);
Document document = new Document(oldClipBounds.Width, oldClipBounds.Height);
document.ReplaceMetadataFrom(oldDocument);
RectInt32 newClipBounds = new RectInt32(0, 0, oldClipBounds.Width, oldClipBounds.Height);
SelectionRenderingQuality quality = historyWorkspace.ToolSettings.Selection.RenderingQuality.Value;
Result <IRenderer <ColorAlpha8> > oldClipMaskRendererLazy = historyWorkspace.Selection.GetCachedLazyClippingMaskRenderer(quality);
LazyResult <ClippedRenderer <ColorAlpha8> > newClipMaskRendererLazy = LazyResult.New <ClippedRenderer <ColorAlpha8> >(() => new ClippedRenderer <ColorAlpha8>(oldClipMaskRendererLazy.Value, oldClipBounds), LazyThreadSafetyMode.ExecutionAndPublication, new VistaCriticalSection(0));
SelectionData selectionData = historyWorkspace.Selection.Save();
System.Threading.Tasks.Task <SelectionHistoryMemento> task = System.Threading.Tasks.Task.Factory.StartNew <SelectionHistoryMemento>(() => new SelectionHistoryMemento(null, null, historyWorkspace, selectionData));
System.Threading.Tasks.Task <ReplaceDocumentHistoryMemento> task2 = System.Threading.Tasks.Task.Factory.StartNew <ReplaceDocumentHistoryMemento>(() => new ReplaceDocumentHistoryMemento(null, null, historyWorkspace, oldDocument), TaskCreationOptions.LongRunning);
int count = oldDocument.Layers.Count;
System.Threading.Tasks.Task <BitmapLayer>[] items = new System.Threading.Tasks.Task <BitmapLayer> [count];
for (int i = 0; i < count; i++)
{
int iP = i;
items[iP] = System.Threading.Tasks.Task.Factory.StartNew <BitmapLayer>(delegate {
if (iP == 0)
{
newClipMaskRendererLazy.EnsureEvaluated();
}
BitmapLayer layer = (BitmapLayer)oldDocument.Layers[iP];
Surface croppedSurface = layer.Surface.CreateWindow(oldClipBounds);
BitmapLayer newLayer = RetryManager.RunMemorySensitiveOperation <BitmapLayer>(() => new BitmapLayer(croppedSurface));
newLayer.LoadProperties(layer.SaveProperties());
Parallel.ForEach <RectInt32>(newClipBounds.GetTiles(TilingStrategy.Tiles, 7), delegate(RectInt32 newTileRect) {
ISurface <ColorBgra> surface = newLayer.Surface.CreateWindow(newTileRect);
IRenderer <ColorAlpha8> mask = new ClippedRenderer <ColorAlpha8>(newClipMaskRendererLazy.Value, newTileRect);
surface.MultiplyAlphaChannel(mask);
});
return(newLayer);
});
}
List <TupleStruct <System.Threading.Tasks.Task, double> > collection = new List <TupleStruct <System.Threading.Tasks.Task, double> >();
collection.AddTuple <System.Threading.Tasks.Task, double>(task, 0.1);
collection.AddTuple <System.Threading.Tasks.Task, double>(task2, 1.0);
for (int j = 0; j < items.Length; j++)
{
collection.AddTuple <System.Threading.Tasks.Task, double>(items[j], 0.1);
}
PaintDotNet.Threading.Tasks.Task <Unit> task3 = historyWorkspace.TaskManager.CreateFrameworkTasksWrapper(collection);
historyWorkspace.WaitWithProgress(task3, HistoryMementoImage, HistoryMementoName, PdnResources.GetString("Effects.ApplyingDialog.Description"));
document.Layers.AddRange <Layer>(items.Select <System.Threading.Tasks.Task <BitmapLayer>, BitmapLayer>(t => t.Result));
SelectionHistoryMemento result = task.Result;
ReplaceDocumentHistoryMemento memento2 = task2.Result;
base.EnterCriticalRegion();
historyWorkspace.Document = document;
HistoryMemento[] mementos = new HistoryMemento[] { result, memento2 };
return(HistoryMemento.Combine(HistoryMementoName, HistoryMementoImage, mementos));
}
