void Advance(bool forward)
{
Gtk.TreePath path = new Gtk.TreePath();
if (this.ImageThumbView.SelectedItems.Length > 0)
{
if (this.imageView.AdvanceSubImage(forward))
{
return;
}
if (forward)
{
foreach (var selPath in this.ImageThumbView.SelectedItems)
{
if (path.Depth == 0 || path.Compare(selPath) < 0)
{
path = selPath;
}
}
}
else
{
foreach (var selPath in this.ImageThumbView.SelectedItems)
{
if (path.Depth == 0 || path.Compare(selPath) > 0)
{
path = selPath;
}
}
}
}
path = this.GetNextPath(path, forward);
this.ImageThumbView.UnselectAll();
this.SelectImagePath(path);
}
protected override bool OnButtonReleaseEvent(Gdk.EventButton evnt)
{
this.Selection.SelectFunction = (s, m, p, b) => {
return(true);
};
Gtk.TreePath buttonReleasePath;
//If OnButtonPressEvent attempted on making deselection and dragging was not started
//check if we are on same item as when we clicked(could be different if dragging is disabled)
if (selectOnRelease &&
GetPathAtPos((int)evnt.X, (int)evnt.Y, out buttonReleasePath) &&
buttonPressPath.Compare(buttonReleasePath) == 0)
{
//Simulate what would happen in OnButtonPressEvent if we were not blocking selection
//notice that item is currently 100% selected since this check was performed in OnButtonPressEvent
if (Selection.Mode == Gtk.SelectionMode.Multiple &&
(evnt.State & Gdk.ModifierType.ControlMask) > 0)
{
Selection.UnselectPath(buttonReleasePath);
}
else
{
//UnselectAll in case multiple were selected we want only our item to be selected now
//if it was clicked but not dragged
Selection.UnselectAll();
Selection.SelectPath(buttonReleasePath);
}
buttonPressPath = null;
}
selectOnRelease = false;
bool res = base.OnButtonReleaseEvent(evnt);
if (DoPopupMenu != null && evnt.IsContextMenuButton())
{
return(true);
}
return(res);
}