OpenStructure
overlay_manager_observer.hh
Go to the documentation of this file.
1 //------------------------------------------------------------------------------
2 // This file is part of the OpenStructure project <www.openstructure.org>
3 //
4 // Copyright (C) 2008-2020 by the OpenStructure authors
5 // Copyright (C) 2003-2010 by the IPLT authors
6 //
7 // This library is free software; you can redistribute it and/or modify it under
8 // the terms of the GNU Lesser General Public License as published by the Free
9 // Software Foundation; either version 3.0 of the License, or (at your option)
10 // any later version.
11 // This library is distributed in the hope that it will be useful, but WITHOUT
12 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13 // FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
14 // details.
15 //
16 // You should have received a copy of the GNU Lesser General Public License
17 // along with this library; if not, write to the Free Software Foundation, Inc.,
18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 //------------------------------------------------------------------------------
20 
21 /*
22  Authors: Ansgar Philippsen
23 */
24 
25 #ifndef IMG_GUI_OVERLAY_MANAGER_OBSERVER_H
26 #define IMG_GUI_OVERLAY_MANAGER_OBSERVER_H
27 
28 #include "overlay_manager_fw.hh"
29 
30 namespace ost { namespace img { namespace gui {
31 
34 public:
36 
38  virtual void OnLockChange(OverlayManager* m, int id, bool lock) {}
40  virtual void OnVisibilityChange(OverlayManager* m, int id, bool is_visible) {}
42  virtual void OnActivate(OverlayManager* m, int id) {}
44  virtual void OnAddOverlay(OverlayManager* m, int id) {}
46  virtual void OnRemoveOverlay(OverlayManager* m, int id) {}
47 
49 
52  virtual void OnRelease(OverlayManager* m) {}
53 };
54 
55 }}} //ns
56 
57 #endif
Abstract observer base class for the OverlayManager.
virtual void OnVisibilityChange(OverlayManager *m, int id, bool is_visible)
called on overlay visibility change
virtual void OnRemoveOverlay(OverlayManager *m, int id)
called on removal of an overlay
virtual void OnRelease(OverlayManager *m)
called if observed manager will go out of scope
virtual void OnLockChange(OverlayManager *m, int id, bool lock)
called on overlay lock change
virtual void OnAddOverlay(OverlayManager *m, int id)
called on addition of an overlay
virtual void OnActivate(OverlayManager *m, int id)
called on overlay activation
Definition: base.dox:1