public override HistoryMemento PerformAction(DocumentWorkspace documentWorkspace)
{
DateTime utcNow = DateTime.UtcNow;
documentWorkspace.History.BeginStepGroup();
using (new WaitCursorChanger(documentWorkspace))
{
documentWorkspace.SuspendToolCursorChanges();
while (documentWorkspace.History.UndoStack.Count > 1)
{
documentWorkspace.History.StepBackward(documentWorkspace);
CleanupManager.RequestCleanup();
TimeSpan span = (TimeSpan)(DateTime.UtcNow - utcNow);
if (span.TotalMilliseconds >= 500.0)
{
documentWorkspace.History.EndStepGroup();
documentWorkspace.QueueUpdate();
utcNow = DateTime.UtcNow;
documentWorkspace.History.BeginStepGroup();
}
}
documentWorkspace.ResumeToolCursorChanges();
}
documentWorkspace.History.EndStepGroup();
CleanupManager.RequestCleanup();
documentWorkspace.Document.Invalidate();
documentWorkspace.QueueUpdate();
return(null);
}
public override HistoryMemento PerformAction(DocumentWorkspace documentWorkspace)
{
if (documentWorkspace.History.RedoStack.Count > 0)
{
if (!(documentWorkspace.History.RedoStack[documentWorkspace.History.RedoStack.Count - 1] is NullHistoryMemento))
{
using (new WaitCursorChanger(documentWorkspace.FindForm()))
{
documentWorkspace.History.StepForward(documentWorkspace);
documentWorkspace.QueueUpdate();
}
}
CleanupManager.RequestCleanup();
}
return(null);
}
public override HistoryMemento PerformAction(DocumentWorkspace documentWorkspace)
{
if (!ScanningAndPrinting.CanPrint)
{
ShowWiaError(documentWorkspace);
return(null);
}
using (new PushNullToolMode(documentWorkspace))
{
Surface surface = documentWorkspace.BorrowScratchSurface(base.GetType().Name + ".PerformAction()");
try
{
surface.Clear();
RenderArgs args = new RenderArgs(surface);
documentWorkspace.QueueUpdate();
using (new WaitCursorChanger(documentWorkspace))
{
args.Surface.Clear(ColorBgra.White);
documentWorkspace.Document.Render(args, false);
}
string filename = Path.GetTempFileName() + ".bmp";
args.Bitmap.Save(filename, ImageFormat.Bmp);
try
{
ScanningAndPrinting.Print(documentWorkspace, filename);
}
catch (Exception)
{
ShowWiaError(documentWorkspace);
}
bool flag = FileSystem.TryDeleteFile(filename);
}
catch (Exception exception)
{
ExceptionDialog.ShowErrorDialog(documentWorkspace, exception);
}
finally
{
documentWorkspace.ReturnScratchSurface(surface);
}
}
return(null);
}
