File indexing completed on 2024-12-08 09:38:54
0001 /* 0002 KHTML image displaying library. 0003 0004 Copyright (C) 2007 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 #include "canvasimage.h" 0025 #include "imageowner.h" 0026 #include "pixmapplane.h" 0027 #include "rawimageplane.h" 0028 #include "scaledimageplane.h" 0029 0030 namespace khtmlImLoad 0031 { 0032 0033 class TrivialImageOwner : public ImageOwner 0034 { 0035 public: 0036 void imageHasGeometry(Image *, int, int) override {} 0037 void imageChange(Image *, QRect) override {} 0038 void imageError(Image *) override {}; 0039 void imageDone(Image *) override {}; 0040 }; 0041 0042 ImageOwner *CanvasImage::s_trivialOwner = nullptr; 0043 0044 ImageOwner *CanvasImage::trivialOwner() 0045 { 0046 if (!s_trivialOwner) { 0047 s_trivialOwner = new TrivialImageOwner; 0048 } 0049 return s_trivialOwner; 0050 } 0051 0052 void CanvasImage::setupOriginalPlane(int width, int height) 0053 { 0054 fullyDecoded = true; 0055 this->width = width; 0056 this->height = height; 0057 0058 RawImagePlane *imgPlane = new RawImagePlane(width, height, 1 /*already "loaded"*/); 0059 imgPlane->format.type = ImageFormat::Image_ARGB_32; 0060 imgPlane->image = QImage(width, height, QImage::Format_ARGB32_Premultiplied); 0061 original = new PixmapPlane(width, height, imgPlane); 0062 0063 } 0064 0065 CanvasImage::CanvasImage(int width, int height): Image(trivialOwner()) 0066 { 0067 setupOriginalPlane(width, height); 0068 } 0069 0070 void CanvasImage::contentUpdated() 0071 { 0072 flushAllCaches(); 0073 } 0074 0075 void CanvasImage::flushAllCaches() 0076 { 0077 // Flush all the planes, including any scaled ones, etc. 0078 original->flushCache(); 0079 0080 for (QMap<QPair<int, int>, PixmapPlane *>::iterator i = scaled.begin(); i != scaled.end(); ++i) { 0081 i.value()->flushCache(); 0082 } 0083 } 0084 0085 void CanvasImage::resizeImage(int width, int height) 0086 { 0087 // Dump any cached info, it's useless 0088 flushAllCaches(); 0089 0090 // Create a new master pixmap and raw image planes 0091 delete original; 0092 setupOriginalPlane(width, height); 0093 RawImagePlane *imgPlane = static_cast<RawImagePlane *>(original->parent); 0094 0095 // Now go through the scaling cache, and fix things up. 0096 for (QMap<QPair<int, int>, PixmapPlane *>::iterator i = scaled.begin(); i != scaled.end(); ++i) { 0097 PixmapPlane *scaledPix = i.value(); 0098 delete scaledPix->parent; 0099 scaledPix->parent = new ScaledImagePlane(scaledPix->width, scaledPix->height, imgPlane); 0100 } 0101 } 0102 0103 } 0104