public BitmapHistoryMemento(string name, ImageResource image, IHistoryWorkspace historyWorkspace, int layerIndex, IEnumerable <RectInt32> changedRegion, Surface copyFromThisSurface) : base(name, image)
{
RectInt32[] scans = changedRegion.ToArrayEx <RectInt32>();
this.historyWorkspace = historyWorkspace;
this.layerIndex = layerIndex;
this.tempFileName = FileSystem.GetTempFileName();
FileStream output = null;
try
{
output = FileSystem.OpenStreamingFile(this.tempFileName, FileAccess.Write);
SaveSurfaceRegion(output, copyFromThisSurface, scans);
}
finally
{
if (output != null)
{
output.Dispose();
output = null;
}
}
this.tempFileHandle = new DeleteFileOnFree(this.tempFileName);
BitmapHistoryMementoData data = new BitmapHistoryMementoData(scans);
base.Data = data;
}
protected override HistoryMemento OnUndo(ProgressEventHandler progressCallback)
{
BitmapHistoryMementoData data = base.Data as BitmapHistoryMementoData;
BitmapLayer layer = (BitmapLayer)this.historyWorkspace.Document.Layers[this.layerIndex];
RectInt32[] savedRegion = data.SavedRegion;
MaskedSurface surface = null;
BitmapHistoryMemento memento = new BitmapHistoryMemento(base.Name, base.Image, this.historyWorkspace, this.layerIndex, savedRegion);
if (surface != null)
{
surface.Draw(layer.Surface);
}
else
{
using (FileStream stream = FileSystem.OpenStreamingFile(this.tempFileName, FileAccess.Read))
{
LoadSurfaceRegion(stream, layer.Surface, data.SavedRegion);
}
this.tempFileHandle.Dispose();
this.tempFileHandle = null;
}
if (savedRegion.Length != 0)
{
RectInt32 roi = savedRegion.Bounds();
layer.Invalidate(roi);
}
return(memento);
}
public BitmapHistoryMemento(string name, ImageResource image, IHistoryWorkspace historyWorkspace,
int layerIndex, PdnRegion changedRegion, Surface copyFromThisSurface)
: base(name, image)
{
this.historyWorkspace = historyWorkspace;
this.layerIndex = layerIndex;
PdnRegion region = changedRegion.Clone();
this.tempFileName = FileSystem.GetTempFileName();
FileStream outputStream = null;
try
{
outputStream = FileSystem.OpenStreamingFile(this.tempFileName, FileAccess.Write);
SaveSurfaceRegion(outputStream, copyFromThisSurface, region);
}
finally
{
if (outputStream != null)
{
outputStream.Dispose();
outputStream = null;
}
}
this.tempFileHandle = new DeleteFileOnFree(this.tempFileName);
BitmapHistoryMementoData data = new BitmapHistoryMementoData(null, region);
this.Data = data;
}
public BitmapHistoryMemento(string name, ImageResource image, IHistoryWorkspace historyWorkspace,
int layerIndex, PdnRegion changedRegion, Surface copyFromThisSurface)
: base(name, image)
{
this.historyWorkspace = historyWorkspace;
this.layerIndex = layerIndex;
PdnRegion region = changedRegion.Clone();
this.tempFileName = FileSystem.GetTempFileName();
FileStream outputStream = null;
try
{
outputStream = FileSystem.OpenStreamingFile(this.tempFileName, FileAccess.Write);
SaveSurfaceRegion(outputStream, copyFromThisSurface, region);
}
finally
{
if (outputStream != null)
{
outputStream.Dispose();
outputStream = null;
}
}
this.tempFileHandle = new DeleteFileOnFree(this.tempFileName);
BitmapHistoryMementoData data = new BitmapHistoryMementoData(null, region);
this.Data = data;
}
protected override HistoryMemento OnUndo()
{
BitmapHistoryMementoData data = this.Data as BitmapHistoryMementoData;
BitmapLayer layer = (BitmapLayer)this.historyWorkspace.Document.Layers[this.layerIndex];
PdnRegion region;
MaskedSurface maskedSurface = null;
if (this.poMaskedSurfaceRef != Guid.Empty)
{
PersistedObject <MaskedSurface> poMS = PersistedObjectLocker.Get <MaskedSurface>(this.poMaskedSurfaceRef);
maskedSurface = poMS.Object;
region = maskedSurface.CreateRegion();
}
else if (data.UndoImage == null)
{
region = data.SavedRegion;
}
else
{
region = data.UndoImage.Region;
}
BitmapHistoryMemento redo;
if (this.poUndoMaskedSurfaceRef == Guid.Empty)
{
redo = new BitmapHistoryMemento(Name, Image, this.historyWorkspace, this.layerIndex, region);
redo.poUndoMaskedSurfaceRef = this.poMaskedSurfaceRef;
}
else
{
redo = new BitmapHistoryMemento(Name, Image, this.historyWorkspace, this.layerIndex, this.poUndoMaskedSurfaceRef);
}
PdnRegion simplified = Utility.SimplifyAndInflateRegion(region);
if (maskedSurface != null)
{
maskedSurface.Draw(layer.Surface);
}
else if (data.UndoImage == null)
{
using (FileStream input = FileSystem.OpenStreamingFile(this.tempFileName, FileAccess.Read))
{
LoadSurfaceRegion(input, layer.Surface, data.SavedRegion);
}
data.SavedRegion.Dispose();
this.tempFileHandle.Dispose();
this.tempFileHandle = null;
}
else
{
data.UndoImage.Draw(layer.Surface);
data.UndoImage.Dispose();
}
layer.Invalidate(simplified);
simplified.Dispose();
return(redo);
}
protected override HistoryMemento OnUndo()
{
BitmapHistoryMementoData data = this.Data as BitmapHistoryMementoData;
BitmapLayer layer = (BitmapLayer)this.historyWorkspace.Document.Layers[this.layerIndex];
PdnRegion region;
MaskedSurface maskedSurface = null;
if (this.poMaskedSurfaceRef != Guid.Empty)
{
PersistedObject<MaskedSurface> poMS = PersistedObjectLocker.Get<MaskedSurface>(this.poMaskedSurfaceRef);
maskedSurface = poMS.Object;
region = maskedSurface.CreateRegion();
}
else if (data.UndoImage == null)
{
region = data.SavedRegion;
}
else
{
region = data.UndoImage.Region;
}
BitmapHistoryMemento redo;
if (this.poUndoMaskedSurfaceRef == Guid.Empty)
{
redo = new BitmapHistoryMemento(Name, Image, this.historyWorkspace, this.layerIndex, region);
redo.poUndoMaskedSurfaceRef = this.poMaskedSurfaceRef;
}
else
{
redo = new BitmapHistoryMemento(Name, Image, this.historyWorkspace, this.layerIndex, this.poUndoMaskedSurfaceRef);
}
PdnRegion simplified = Utility.SimplifyAndInflateRegion(region);
if (maskedSurface != null)
{
maskedSurface.Draw(layer.Surface);
}
else if (data.UndoImage == null)
{
using (FileStream input = FileSystem.OpenStreamingFile(this.tempFileName, FileAccess.Read))
{
LoadSurfaceRegion(input, layer.Surface, data.SavedRegion);
}
data.SavedRegion.Dispose();
this.tempFileHandle.Dispose();
this.tempFileHandle = null;
}
else
{
data.UndoImage.Draw(layer.Surface);
data.UndoImage.Dispose();
}
layer.Invalidate(simplified);
simplified.Dispose();
return redo;
}
