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00001 /*************************************************************************** 00002 * Copyright (C) 2007-2009 by Ilya Kotov * 00003 * forkotov02@hotmail.ru * 00004 * * 00005 * This program is free software; you can redistribute it and/or modify * 00006 * it under the terms of the GNU General Public License as published by * 00007 * the Free Software Foundation; either version 2 of the License, or * 00008 * (at your option) any later version. * 00009 * * 00010 * This program is distributed in the hope that it will be useful, * 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00013 * GNU General Public License for more details. * 00014 * * 00015 * You should have received a copy of the GNU General Public License * 00016 * along with this program; if not, write to the * 00017 * Free Software Foundation, Inc., * 00018 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * 00019 ***************************************************************************/ 00020 00021 #ifndef _PLAYSTATE_H 00022 #define _PLAYSTATE_H 00023 00024 #include "playlistmodel.h" 00025 00030 class PlayState 00031 { 00032 public: 00036 virtual bool next() = 0; 00037 00041 virtual bool previous() = 0; 00045 virtual int nextIndex() = 0; 00049 virtual void resetState() 00050 { 00051 ; 00052 } 00056 virtual void prepare() 00057 { 00058 ; 00059 } 00060 virtual ~PlayState() 00061 { 00062 ; 00063 } 00064 PlayState(PlayListModel* model) : m_model(model) 00065 { 00066 ; 00067 } 00068 protected: 00069 00071 PlayListModel* m_model; 00072 }; 00073 00078 class NormalPlayState : public PlayState 00079 { 00080 public: 00081 virtual bool next(); 00082 virtual bool previous(); 00083 virtual int nextIndex(); 00084 NormalPlayState(PlayListModel* model); 00085 }; 00086 00091 class ShufflePlayState : public PlayState 00092 { 00093 public: 00094 virtual bool next(); 00095 virtual bool previous(); 00096 virtual int nextIndex(); 00097 virtual void prepare(); 00098 ShufflePlayState(PlayListModel* model); 00099 virtual void resetState(); 00100 private: 00101 00103 int m_shuffled_current; 00104 00106 QList<int> m_shuffled_indexes; 00107 }; 00108 00109 00110 #endif