File indexing completed on 2024-04-21 14:57:38
0001 /* 0002 Large image displaying library. 0003 0004 Copyright (C) 2004 Maks Orlovich (maksim@kde.org) 0005 0006 Permission is hereby granted, free of charge, to any person obtaining a copy 0007 of this software and associated documentation files (the "Software"), to deal 0008 in the Software without restriction, including without limitation the rights 0009 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 0010 copies of the Software, and to permit persons to whom the Software is 0011 furnished to do so, subject to the following conditions: 0012 0013 The above copyright notice and this permission notice shall be included in 0014 all copies or substantial portions of the Software. 0015 0016 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 0017 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 0018 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 0019 AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 0020 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 0021 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 0022 0023 */ 0024 0025 #ifndef IMAGE_LOADER_PROVIDER_H 0026 #define IMAGE_LOADER_PROVIDER_H 0027 0028 #include <QByteArray> 0029 0030 namespace khtmlImLoad 0031 { 0032 0033 class ImageLoader; 0034 /** 0035 To register new image formats, new copies of ImageLoaderProvider's must be 0036 created and registered with ImageManager::loaderDatabase(). 0037 */ 0038 class ImageLoaderProvider 0039 { 0040 public: 0041 virtual ~ImageLoaderProvider() {} 0042 enum Type { 0043 Efficient, 0044 Foreign 0045 }; 0046 0047 /** 0048 Returns the type of the loader. An "efficient" loader does not duplicate any data, and will therefore be preferred; 0049 while a "foreign" loader has to duplicate a large amount of image data to fit in w/the original 0050 framework, and should therefore only be used when a better loader is not available 0051 */ 0052 virtual Type type() = 0; 0053 0054 /** 0055 Creates a loader for an image format that can decode a file starting with given data, or 0 if that's not possible. 0056 */ 0057 virtual ImageLoader *loaderFor(const QByteArray &prefix) = 0; 0058 }; 0059 0060 } 0061 0062 #endif