aseprite/src/app/context_observer.h

41 lines
1.4 KiB
C++

/* Aseprite
* Copyright (C) 2001-2013 David Capello
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef APP_CONTEXT_OBSERVER_H_INCLUDED
#define APP_CONTEXT_OBSERVER_H_INCLUDED
namespace app {
class Context;
class Document;
// Observer of context events. The default implementation does nothing
// in each handler, so you can override the required events.
class ContextObserver {
public:
virtual ~ContextObserver() { }
virtual void onCommandBeforeExecution(Context* context) { }
virtual void onCommandAfterExecution(Context* context) { }
virtual void onAddDocument(Context* context, Document* document) { }
virtual void onRemoveDocument(Context* context, Document* document) { }
};
} // namespace app
#endif