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WaitForConditionAnimation.h

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00001 /* ScummVM - Graphic Adventure Engine
00002  *
00003  * ScummVM is the legal property of its developers, whose names
00004  * are too numerous to list here. Please refer to the COPYRIGHT
00005  * file distributed with this source distribution.
00006  *
00007  * This program is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU General Public License
00009  * as published by the Free Software Foundation; either version 2
00010  * of the License, or (at your option) any later version.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 
00023 // Based on code by omergilad.
00024 
00025 #ifndef GUI_ANIMATION_WAITFORCONDITIONANIMATION_H
00026 #define GUI_ANIMATION_WAITFORCONDITIONANIMATION_H
00027 
00028 #include "gui/animation/Animation.h"
00029 
00030 namespace GUI {
00031 
00032 class Condition {
00033 
00034 public:
00035     virtual ~Condition() {}
00036 
00037     virtual bool evaluate() = 0;
00038 };
00039 
00040 typedef Common::SharedPtr<Condition> ConditionPtr;
00041 
00045 class WaitForConditionAnimation: public Animation {
00046 public:
00047     WaitForConditionAnimation() {}
00048     virtual ~WaitForConditionAnimation() {}
00049 
00050     virtual void update(Drawable *drawable, long currentTime) {
00051         // Check the condition - if it has been met, finish.
00052         if (_condition.get() != NULL && _condition->evaluate()) {
00053             finishAnimation();
00054         }
00055     }
00056 
00057     ConditionPtr getCondition() const {
00058         return _condition;
00059     }
00060 
00061     void setCondition(ConditionPtr condition) {
00062         _condition = condition;
00063     }
00064 
00065 private:
00066     ConditionPtr _condition;
00067 };
00068 
00069 } // End of namespace GUI
00070 
00071 #endif /* GUI_ANIMATION_WAITFORCONDITIONANIMATION_H */


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