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