public override HistoryMemento OnExecute(IHistoryWorkspace historyWorkspace)
{
CompoundHistoryMemento chm = new CompoundHistoryMemento(this.historyName, this.undoImage);
if (!historyWorkspace.Selection.IsEmpty)
{
DeselectFunction df = new DeselectFunction();
EnterCriticalRegion();
HistoryMemento hm = df.Execute(historyWorkspace);
chm.PushNewAction(hm);
}
FlipLayerHistoryMemento flha = new FlipLayerHistoryMemento(
null,
null,
historyWorkspace,
this.layerIndex,
this.flipType);
EnterCriticalRegion();
HistoryMemento flha2 = flha.PerformUndo();
chm.PushNewAction(flha);
return(chm);
}
public override HistoryMemento OnExecute(IHistoryWorkspace historyWorkspace)
{
object savedSelection = null;
List <HistoryMemento> actions = new List <HistoryMemento>();
if (!historyWorkspace.Selection.IsEmpty)
{
savedSelection = historyWorkspace.Selection.Save();
DeselectFunction da = new DeselectFunction();
HistoryMemento hm = da.Execute(historyWorkspace);
actions.Add(hm);
}
ReplaceDocumentHistoryMemento rdha = new ReplaceDocumentHistoryMemento(null, null, historyWorkspace);
actions.Add(rdha);
CompoundHistoryMemento chm = new CompoundHistoryMemento(
StaticName,
PdnResources.GetImageResource("Icons.MenuImageFlattenIcon.png"),
actions);
// TODO: we can save memory here by serializing, then flattening on to an existing layer
Document flat = historyWorkspace.Document.Flatten();
EnterCriticalRegion();
historyWorkspace.Document = flat;
if (savedSelection != null)
{
SelectionHistoryMemento shm = new SelectionHistoryMemento(null, null, historyWorkspace);
historyWorkspace.Selection.Restore(savedSelection);
chm.PushNewAction(shm);
}
return(chm);
}
public override HistoryMemento OnExecute(IHistoryWorkspace historyWorkspace)
{
List <HistoryMemento> actions = new List <HistoryMemento>();
if (!historyWorkspace.Selection.IsEmpty)
{
DeselectFunction da = new DeselectFunction();
EnterCriticalRegion();
HistoryMemento hm = da.Execute(historyWorkspace);
actions.Add(hm);
}
int count = historyWorkspace.Document.Layers.Count;
for (int i = 0; i < count; ++i)
{
HistoryMemento memento = new FlipLayerHistoryMemento(this.historyName, undoImage, historyWorkspace, i, flipType);
EnterCriticalRegion();
HistoryMemento mementoToAdd = memento.PerformUndo();
actions.Add(mementoToAdd);
}
return(new CompoundHistoryMemento(this.historyName, undoImage, actions));
}
public override HistoryMemento OnExecute(IHistoryWorkspace historyWorkspace)
{
int newWidth;
int newHeight;
// Get new width and Height
switch (rotation)
{
case RotateType.Clockwise90:
case RotateType.CounterClockwise90:
newWidth = historyWorkspace.Document.Height;
newHeight = historyWorkspace.Document.Width;
break;
case RotateType.Rotate180:
newWidth = historyWorkspace.Document.Width;
newHeight = historyWorkspace.Document.Height;
break;
default:
throw new InvalidEnumArgumentException("invalid RotateType");
}
// Figure out which icon and text to use
string iconResName;
string suffix;
switch (rotation)
{
case RotateType.Rotate180:
iconResName = "Icons.MenuImageRotate180Icon.png";
suffix = PdnResources.GetString("RotateAction.180");
break;
case RotateType.Clockwise90:
iconResName = "Icons.MenuImageRotate90CWIcon.png";
suffix = PdnResources.GetString("RotateAction.90CW");
break;
case RotateType.CounterClockwise90:
iconResName = "Icons.MenuImageRotate90CCWIcon.png";
suffix = PdnResources.GetString("RotateAction.90CCW");
break;
default:
throw new InvalidEnumArgumentException("invalid RotateType");
}
// Initialize the new Doc
string haNameFormat = PdnResources.GetString("RotateAction.HistoryMementoName.Format");
string haName = string.Format(haNameFormat, StaticName, suffix);
ImageResource haImage = PdnResources.GetImageResource(iconResName);
List <HistoryMemento> actions = new List <HistoryMemento>();
// do the memory allocation now: if this fails, we can still bail out cleanly
Document newDoc = new Document(newWidth, newHeight);
if (!historyWorkspace.Selection.IsEmpty)
{
DeselectFunction da = new DeselectFunction();
EnterCriticalRegion();
HistoryMemento hm = da.Execute(historyWorkspace);
actions.Add(hm);
}
ReplaceDocumentHistoryMemento rdha = new ReplaceDocumentHistoryMemento(null, null, historyWorkspace);
actions.Add(rdha);
newDoc.ReplaceMetaDataFrom(historyWorkspace.Document);
// TODO: serialize oldDoc to disk, and let the GC purge it if needed
OnProgress(0.0);
for (int i = 0; i < historyWorkspace.Document.Layers.Count; ++i)
{
Layer layer = historyWorkspace.Document.Layers.GetAt(i);
double progressStart = 100.0 * ((double)i / (double)historyWorkspace.Document.Layers.Count);
double progressEnd = 100.0 * ((double)(i + 1) / (double)historyWorkspace.Document.Layers.Count);
if (layer is BitmapLayer)
{
Layer nl = RotateLayer((BitmapLayer)layer, rotation, newWidth, newHeight, progressStart, progressEnd);
newDoc.Layers.Add(nl);
}
else
{
throw new InvalidOperationException("Cannot Rotate non-BitmapLayers");
}
if (this.PleaseCancel)
{
break;
}
OnProgress(progressEnd);
}
CompoundHistoryMemento chm = new CompoundHistoryMemento(
haName,
haImage,
actions);
if (this.PleaseCancel)
{
chm = null;
}
else
{
EnterCriticalRegion();
historyWorkspace.Document = newDoc;
}
return(chm);
}
