public override HistoryMemento OnExecute(IHistoryWorkspace historyWorkspace)
{
if ((this.layerIndex < 1) || (this.layerIndex >= historyWorkspace.Document.Layers.Count))
{
object[] objArray1 = new object[] { "layerIndex must be greater than or equal to 1, and a valid layer index. layerIndex=", this.layerIndex, ", allowableRange=[0,", historyWorkspace.Document.Layers.Count, ")" };
throw new ArgumentException(string.Concat(objArray1));
}
int layerIndex = this.layerIndex - 1;
RectInt32 rect = historyWorkspace.Document.Bounds();
GeometryList list = new GeometryList();
list.AddRect(rect);
RectInt32[] changedRegion = list.EnumerateInteriorScans().ToArrayEx <RectInt32>();
BitmapHistoryMemento memento = new BitmapHistoryMemento(null, null, historyWorkspace, layerIndex, changedRegion);
BitmapLayer layer = (BitmapLayer)historyWorkspace.Document.Layers[this.layerIndex];
BitmapLayer layer2 = (BitmapLayer)historyWorkspace.Document.Layers[layerIndex];
RenderArgs args = new RenderArgs(layer2.Surface);
base.EnterCriticalRegion();
foreach (RectInt32 num4 in changedRegion)
{
layer.Render(args, num4.ToGdipRectangle());
}
layer2.Invalidate();
args.Dispose();
args = null;
list = null;
HistoryMemento memento2 = new DeleteLayerFunction(this.layerIndex).Execute(historyWorkspace);
return(new CompoundHistoryMemento(StaticName, StaticImage, new HistoryMemento[] { memento, memento2 }));
}
public override HistoryMemento OnExecute(IHistoryWorkspace historyWorkspace)
{
if (this.layerIndex < 1 || this.layerIndex >= historyWorkspace.Document.Layers.Count)
{
throw new ArgumentException("layerIndex must be greater than or equal to 1, and a valid layer index. layerIndex=" +
layerIndex + ", allowableRange=[0," + historyWorkspace.Document.Layers.Count + ")");
}
int bottomLayerIndex = this.layerIndex - 1;
Rectangle bounds = historyWorkspace.Document.Bounds;
PdnRegion region = new PdnRegion(bounds);
BitmapHistoryMemento bhm = new BitmapHistoryMemento(
null,
null,
historyWorkspace,
bottomLayerIndex,
region);
BitmapLayer topLayer = (BitmapLayer)historyWorkspace.Document.Layers[this.layerIndex];
BitmapLayer bottomLayer = (BitmapLayer)historyWorkspace.Document.Layers[bottomLayerIndex];
RenderArgs bottomRA = new RenderArgs(bottomLayer.Surface);
EnterCriticalRegion();
topLayer.Render(bottomRA, region);
bottomLayer.Invalidate();
bottomRA.Dispose();
bottomRA = null;
region.Dispose();
region = null;
DeleteLayerFunction dlf = new DeleteLayerFunction(this.layerIndex);
HistoryMemento dlhm = dlf.Execute(historyWorkspace);
CompoundHistoryMemento chm = new CompoundHistoryMemento(StaticName, StaticImage, new HistoryMemento[] { bhm, dlhm });
return(chm);
}
