1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #ifndef _SV_PNGREAD_HXX 25 #define _SV_PNGREAD_HXX 26 27 #include <vcl/dllapi.h> 28 #include <vcl/bitmapex.hxx> 29 #include <vector> 30 31 // ------------- 32 // - PNGReader - 33 // ------------- 34 35 namespace vcl 36 { 37 class PNGReaderImpl; 38 39 class VCL_DLLPUBLIC PNGReader 40 { 41 PNGReaderImpl* mpImpl; 42 43 public: 44 45 /* the PNG chunks are read within the c'tor, so the stream will 46 be positioned at the end of the PNG */ 47 explicit PNGReader( SvStream& rStm ); 48 ~PNGReader(); 49 50 /* an empty preview size hint (=default) will read the whole image 51 */ 52 BitmapEx Read( const Size& i_rPreviewHint = Size() ); 53 54 // retrieve every chunk that resides inside the PNG 55 struct ChunkData 56 { 57 sal_uInt32 nType; 58 std::vector< sal_uInt8 > aData; 59 }; 60 const std::vector< ChunkData >& GetChunks() const; 61 62 void SetIgnoreGammaChunk( sal_Bool b ); 63 }; 64 } 65 66 #endif // _SV_PNGREAD_HXX 67