1/*****************************************************************************/ 2// PNGTranslator 3// Written by Michael Wilber, Haiku Translation Kit Team 4// 5// PNGTranslator.h 6// 7// This BTranslator based object is for opening and writing 8// PNG images. 9// 10// 11// Copyright (c) 2003 Haiku Project 12// 13// Permission is hereby granted, free of charge, to any person obtaining a 14// copy of this software and associated documentation files (the "Software"), 15// to deal in the Software without restriction, including without limitation 16// the rights to use, copy, modify, merge, publish, distribute, sublicense, 17// and/or sell copies of the Software, and to permit persons to whom the 18// Software is furnished to do so, subject to the following conditions: 19// 20// The above copyright notice and this permission notice shall be included 21// in all copies or substantial portions of the Software. 22// 23// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 24// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 25// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 26// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 27// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 28// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 29// DEALINGS IN THE SOFTWARE. 30/*****************************************************************************/ 31 32#ifndef PNG_TRANSLATOR_H 33#define PNG_TRANSLATOR_H 34 35#include <Translator.h> 36#include <TranslatorFormats.h> 37#include <TranslationDefs.h> 38#include <GraphicsDefs.h> 39#include <InterfaceDefs.h> 40#include <DataIO.h> 41#include <File.h> 42#include <ByteOrder.h> 43#include <fs_attr.h> 44#include "BaseTranslator.h" 45 46// PNG Translator Settings 47#define PNG_SETTING_INTERLACE "png /interlace" 48 49#define PNG_TRANSLATOR_VERSION B_TRANSLATION_MAKE_VERSION(1,0,0) 50 51#define PNG_IN_QUALITY 0.8 52#define PNG_IN_CAPABILITY 0.8 53#define PNG_OUT_QUALITY 0.8 54#define PNG_OUT_CAPABILITY 0.5 55 56#define BBT_IN_QUALITY 0.8 57#define BBT_IN_CAPABILITY 0.6 58#define BBT_OUT_QUALITY 0.5 59#define BBT_OUT_CAPABILITY 0.4 60 61 62class PNGTranslator : public BaseTranslator { 63public: 64 PNGTranslator(); 65 66 virtual status_t DerivedIdentify(BPositionIO *inSource, 67 const translation_format *inFormat, BMessage *ioExtension, 68 translator_info *outInfo, uint32 outType); 69 70 virtual status_t DerivedTranslate(BPositionIO *inSource, 71 const translator_info *inInfo, BMessage *ioExtension, 72 uint32 outType, BPositionIO *outDestination, int32 baseType); 73 74 virtual BView *NewConfigView(TranslatorSettings *settings); 75 76protected: 77 virtual ~PNGTranslator(); 78 // this is protected because the object is deleted by the 79 // Release() function instead of being deleted directly by 80 // the user 81 82private: 83 status_t translate_from_png_to_bits(BPositionIO *inSource, 84 BPositionIO *outDestination); 85 86 status_t translate_from_png(BPositionIO *inSource, uint32 outType, 87 BPositionIO *outDestination); 88 89 status_t translate_from_bits_to_png(BPositionIO *inSource, 90 BPositionIO *outDestination); 91}; 92 93#endif // #ifndef PNG_TRANSLATOR_H 94