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0001 0002 /* 0003 Copyright (c) 2003-2007 Clarence Dang <dang@kde.org> 0004 All rights reserved. 0005 0006 Redistribution and use in source and binary forms, with or without 0007 modification, are permitted provided that the following conditions 0008 are met: 0009 0010 1. Redistributions of source code must retain the above copyright 0011 notice, this list of conditions and the following disclaimer. 0012 2. Redistributions in binary form must reproduce the above copyright 0013 notice, this list of conditions and the following disclaimer in the 0014 documentation and/or other materials provided with the distribution. 0015 0016 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 0017 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 0018 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 0019 IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 0020 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 0021 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 0022 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 0023 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 0024 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 0025 THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 0026 */ 0027 0028 0029 #ifndef kpEffectCommandBase_H 0030 #define kpEffectCommandBase_H 0031 0032 0033 0034 #include "commands/kpCommand.h" 0035 #include "imagelib/kpImage.h" 0036 0037 0038 class kpEffectCommandBase : public kpCommand 0039 { 0040 public: 0041 kpEffectCommandBase (const QString &name, 0042 bool actOnSelection, 0043 kpCommandEnvironment *environ); 0044 ~kpEffectCommandBase () override; 0045 0046 QString name () const override; 0047 SizeType size () const override; 0048 0049 public: 0050 void execute () override; 0051 void unexecute () override; 0052 0053 public: 0054 // Return true if applyEffect(applyEffect(image)) == image 0055 // to avoid storing the old image, saving memory. 0056 virtual bool isInvertible () const { return false; } 0057 0058 protected: 0059 virtual kpImage applyEffect (const kpImage &image) = 0; 0060 0061 private: 0062 struct kpEffectCommandBasePrivate *d; 0063 }; 0064 0065 0066 #endif // kpEffectCommandBase_H