public void removeSlides(IEnumerable <Slide> slides, Slide primarySelection)
{
int slideIndex = slideshow.indexOf(primarySelection);
List <SlideInfo> removedSlides = new List <SlideInfo>(from slide in slides select new SlideInfo(slide, slideshow.indexOf(slide)));
if (removedSlides.Count > 0)
{
removedSlides.Sort(SlideInfo.Sort);
doRemoveSlides(removedSlides);
Slide changeToSlide = null;
if (primarySelection == lastEditSlide)
{
if (slideIndex < slideshow.Count)
{
changeToSlide = slideshow.get(slideIndex);
}
else if (slideIndex - 1 >= 0)
{
changeToSlide = slideshow.get(slideIndex - 1);
}
}
bool wasAllowingUndo = allowUndoCreation;
allowUndoCreation = false;
if (changeToSlide != null && SlideSelected != null)
{
SlideSelected.Invoke(changeToSlide, IEnumerableUtil <Slide> .EmptyIterator);
}
allowUndoCreation = wasAllowingUndo;
if (allowUndoCreation)
{
undoBuffer.pushAndSkip(new TwoWayDelegateCommand(
new TwoWayDelegateCommand.Funcs()
{
ExecuteFunc = () => //Execute
{
ThreadManager.invoke(new Action(() =>
{
allowUndoCreation = false;
doRemoveSlides(removedSlides);
if (changeToSlide != null && SlideSelected != null)
{
SlideSelected.Invoke(changeToSlide, IEnumerableUtil <Slide> .EmptyIterator);
}
allowUndoCreation = true;
}));
},
UndoFunc = () => //Undo
{
ThreadManager.invoke(new Action(() =>
{
allowUndoCreation = false;
foreach (SlideInfo slide in removedSlides)
{
slideshow.insertSlide(slide.Index, slide.Slide);
if (SlideAdded != null)
{
SlideAdded.Invoke(slide.Slide, slide.Index);
}
}
if (SlideSelected != null)
{
SlideSelected.Invoke(primarySelection, secondarySlideSelections(removedSlides, primarySelection));
}
allowUndoCreation = true;
}));
},
PoppedFrontFunc = () =>
{
foreach (SlideInfo slideInfo in removedSlides)
{
cleanupThumbnail(slideInfo);
}
}
}));
}
}
}
