public override HistoryMemento OnExecute(IHistoryWorkspace historyWorkspace)
{
if (layer1Index < 0 || layer1Index >= historyWorkspace.Document.Layers.Count ||
layer2Index < 0 || layer2Index >= historyWorkspace.Document.Layers.Count)
{
throw new ArgumentOutOfRangeException("layer1Index = " + this.layer1Index + ", layer2Index = " + layer2Index + ", expected [0," + historyWorkspace.Document.Layers.Count + ")");
}
SwapLayerHistoryMemento slhm = new SwapLayerHistoryMemento(
StaticName,
StaticImage,
historyWorkspace,
layer1Index,
layer2Index);
Layer layer1 = historyWorkspace.Document.Layers.GetAt(layer1Index);
Layer layer2 = historyWorkspace.Document.Layers.GetAt(layer2Index);
EnterCriticalRegion();
historyWorkspace.Document.Layers[layer1Index] = layer2;
historyWorkspace.Document.Layers[layer2Index] = layer1;
layer1.Invalidate();
layer2.Invalidate();
return(slhm);
}
public override HistoryMemento PerformAction(DocumentWorkspace documentWorkspace)
{
HistoryMemento memento = null;
int activeLayerIndex = documentWorkspace.ActiveLayerIndex;
if (activeLayerIndex != 0)
{
memento = new SwapLayerHistoryMemento(StaticName, StaticImage, documentWorkspace, activeLayerIndex, activeLayerIndex - 1).PerformUndo(null);
}
return(memento);
}
public override HistoryMemento OnExecute(IHistoryWorkspace historyWorkspace)
{
if (((this.layer1Index < 0) || (this.layer1Index >= historyWorkspace.Document.Layers.Count)) || ((this.layer2Index < 0) || (this.layer2Index >= historyWorkspace.Document.Layers.Count)))
{
object[] objArray1 = new object[] { "layer1Index = ", this.layer1Index, ", layer2Index = ", this.layer2Index, ", expected [0,", historyWorkspace.Document.Layers.Count, ")" };
throw new ArgumentOutOfRangeException(string.Concat(objArray1));
}
SwapLayerHistoryMemento memento = new SwapLayerHistoryMemento(StaticName, StaticImage, historyWorkspace, this.layer1Index, this.layer2Index);
Layer at = historyWorkspace.Document.Layers.GetAt(this.layer1Index);
Layer layer2 = historyWorkspace.Document.Layers.GetAt(this.layer2Index);
base.EnterCriticalRegion();
historyWorkspace.Document.Layers.SwapAt(this.layer1Index, this.layer2Index);
historyWorkspace.Document.Invalidate();
return(memento);
}
public override HistoryMemento PerformAction(DocumentWorkspace documentWorkspace)
{
HistoryMemento hm = null;
int index = documentWorkspace.ActiveLayerIndex;
if (index != 0)
{
SwapLayerHistoryMemento slhm = new SwapLayerHistoryMemento(
StaticName,
StaticImage,
documentWorkspace,
index,
index - 1);
hm = slhm.PerformUndo();
}
return(hm);
}
