1 /* 2 * Copyright (C) 2002 - David W. Durham 3 * 4 * This file is part of ReZound, an audio editing application. 5 * 6 * ReZound is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published 8 * by the Free Software Foundation; either version 2 of the License, 9 * or (at your option) any later version. 10 * 11 * ReZound is distributed in the hope that it will be useful, but 12 * WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA 19 */ 20 21 #ifndef __CChangeRateEffect_H__ 22 #define __CChangeRateEffect_H__ 23 24 #include "../../../config/common.h" 25 26 #include "../AAction.h" 27 28 #include "../CGraphParamValueNode.h" 29 30 class CChangeRateEffect : public AAction 31 { 32 public: 33 CChangeRateEffect(const AActionFactory *factory,const CActionSound *actionSound,const CGraphParamValueNodeList &rateCurve); 34 virtual ~CChangeRateEffect(); 35 36 protected: 37 bool doActionSizeSafe(CActionSound *actionSound,bool prepareForUndo); 38 void undoActionSizeSafe(const CActionSound *actionSound); 39 CanUndoResults canUndo(const CActionSound *actionSound) const; 40 41 private: 42 sample_pos_t undoRemoveLength; 43 CGraphParamValueNodeList rateCurve; 44 45 sample_pos_t getNewSelectionLength(const CActionSound *actionSound) const; 46 sample_fpos_t getWriteLength(sample_pos_t oldLength,const CGraphParamValueNode &rateNote1,const CGraphParamValueNode &rateNode2) const; 47 48 }; 49 50 51 class CSimpleChangeRateEffectFactory : public AActionFactory 52 { 53 public: 54 CSimpleChangeRateEffectFactory(AActionDialog *channelSelectDialog,AActionDialog *dialog); 55 virtual ~CSimpleChangeRateEffectFactory(); 56 57 CChangeRateEffect *manufactureAction(const CActionSound *actionSound,const CActionParameters *actionParameters) const; 58 }; 59 60 class CCurvedChangeRateEffectFactory : public AActionFactory 61 { 62 public: 63 CCurvedChangeRateEffectFactory(AActionDialog *channelSelectDialog,AActionDialog *dialog); 64 virtual ~CCurvedChangeRateEffectFactory(); 65 66 CChangeRateEffect *manufactureAction(const CActionSound *actionSound,const CActionParameters *actionParameters) const; 67 }; 68 69 #endif 70