private void SetToLast(IAlbumPicture ial)
{
if (ial == null)
return;
int Index = Images.IndexOf(ial);
if (Index == -1)
return;
Images.Move(Index, Images.Count - 1);
}
private void SetToFront(IAlbumPicture ial)
{
if (ial == null)
return;
int Index = Images.IndexOf(ial);
if (Index == -1)
return;
Images.Move(Index, 0);
}
private void DoDeleteImage(IAlbumPicture ifal)
{
foreach (IAlbumPicture ial in GetImages(ifal))
{
int Index = Images.IndexOf(ial);
if (Index == -1) return;
_IModifiableAlbum.Images.RemoveAt(Index);
int count = _IModifiableAlbum.Images.Count;
if (count > 0)
{
int imaindex = Math.Min(Math.Max(Index--, 0), count - 1);
SelectedImage = _IModifiableAlbum.Images[imaindex];
}
}
}
private void DoRotateImage(IAlbumPicture ifal,bool irigth)
{
Images.CollectionChanged -= Images_CollectionChanged;
foreach (IAlbumPicture ial in GetImages(ifal))
{
int Index = Images.IndexOf(ial);
if (Index == -1) return;
SelectedImages.Add(_IModifiableAlbum.RotateImage(Index, irigth));
}
Images.CollectionChanged += Images_CollectionChanged;
}
private void DoSplitImage(IAlbumPicture ifal)
{
Images.CollectionChanged -= Images_CollectionChanged;
foreach(IAlbumPicture ial in GetImages(ifal))
{
int Index = Images.IndexOf(ial);
if (Index == -1) continue;
SelectedImages.AddCollection(_IModifiableAlbum.SplitImage(Index).Where(el=>!SelectedImages.Contains(el)));
}
Images.CollectionChanged += Images_CollectionChanged;
}
private IEnumerable<IAlbumPicture> GetImages(IAlbumPicture icontext)
{
if (icontext == null)
return Enumerable.Empty<IAlbumPicture>();
return SelectedImages.Contains(icontext) ? SelectedImages.ToList() : icontext.SingleItemCollection();
}