/// <summary>
/// Undo the last operation perform on the {@link NiceArtEditor}
/// </summary>
/// <returns>true if there nothing more to undo</returns>
public bool Undo(ViewType viewType)
{
try
{
if (AddedViews.Count > 0)
{
var view = AddedViews.LastOrDefault();
if (view != null)
{
if (view.GetType() == typeof(BrushDrawingView))
{
return(BrushDrawingView != null && BrushDrawingView.Undo());
}
else
{
AddedViews.Remove(view);
ParentView.RemoveView(view);
RedoViews.Add(view);
}
}
if (MOnNiceArtEditorListener != null)
{
MOnNiceArtEditorListener?.OnRemoveViewListener(AddedViews.Count);
MOnNiceArtEditorListener.OnRemoveViewListener(viewType, AddedViews.Count);
}
}
return(AddedViews.Count != 0);
}
catch (Exception e)
{
Methods.DisplayReportResultTrack(e);
return(false);
}
}
public void OnViewRemoved(BrushDrawingView brushDrawingView)
{
try
{
if (AddedViews.Count > 0)
{
var item = AddedViews.LastOrDefault();
if (item != null)
{
AddedViews.Remove(item);
if (!(item.GetType() == typeof(BrushDrawingView)))
{
ParentView.RemoveView(item);
}
RedoViews.Add(item);
}
}
if (MOnNiceArtEditorListener != null)
{
MOnNiceArtEditorListener?.OnRemoveViewListener(ViewType.BrushDrawing, AddedViews.Count);
}
}
catch (Exception e)
{
Methods.DisplayReportResultTrack(e);
}
}
public void ViewUndo(View removedView, ViewType viewType)
{
try
{
if (AddedViews.Count > 0)
{
if (AddedViews.Contains(removedView))
{
ParentView.RemoveView(removedView);
AddedViews.Remove(removedView);
RedoViews.Add(removedView);
if (MOnNiceArtEditorListener != null)
{
MOnNiceArtEditorListener.OnRemoveViewListener(viewType, AddedViews.Count);
}
}
}
}
catch (Exception e)
{
Methods.DisplayReportResultTrack(e);
}
}
public void ViewUndo(View removedView, ViewType viewType)
{
try
{
if (AddedViews.Count > 0)
{
if (AddedViews.Contains(removedView))
{
ParentView.RemoveView(removedView);
AddedViews.Remove(removedView);
RedoViews.Add(removedView);
if (MOnNiceArtEditorListener != null)
{
MOnNiceArtEditorListener.OnRemoveViewListener(AddedViews.Count);
MOnNiceArtEditorListener.OnRemoveViewListener(viewType, AddedViews.Count);
}
}
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
}