File indexing completed on 2024-04-21 11:30:13

 /*
     KHTML image displaying library.
 
     Copyright (C) 2007 Maks Orlovich (maksim@kde.org)
 
     Permission is hereby granted, free of charge, to any person obtaining a copy
     of this software and associated documentation files (the "Software"), to deal
     in the Software without restriction, including without limitation the rights
     to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     copies of the Software, and to permit persons to whom the Software is
     furnished to do so, subject to the following conditions:
 
     The above copyright notice and this permission notice shall be included in
     all copies or substantial portions of the Software.
 
     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
     AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
     AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 */
 #include "canvasimage.h"
 #include "imageowner.h"
 #include "pixmapplane.h"
 #include "rawimageplane.h"
 #include "scaledimageplane.h"
 
 namespace khtmlImLoad
 {
 
 class TrivialImageOwner : public ImageOwner
 {
 public:
     void imageHasGeometry(Image *, int, int) override {}
     void imageChange(Image *, QRect) override {}
     void imageError(Image *) override {};
     void imageDone(Image *) override {};
 };
 
 ImageOwner *CanvasImage::s_trivialOwner = nullptr;
 
 ImageOwner *CanvasImage::trivialOwner()
 {
     if (!s_trivialOwner) {
         s_trivialOwner = new TrivialImageOwner;
     }
     return s_trivialOwner;
 }
 
 void CanvasImage::setupOriginalPlane(int width, int height)
 {
     fullyDecoded = true;
     this->width  = width;
     this->height = height;
 
     RawImagePlane *imgPlane = new RawImagePlane(width, height, 1 /*already "loaded"*/);
     imgPlane->format.type = ImageFormat::Image_ARGB_32;
     imgPlane->image = QImage(width, height, QImage::Format_ARGB32_Premultiplied);
     original = new PixmapPlane(width, height, imgPlane);
 
 }
 
 CanvasImage::CanvasImage(int width, int height): Image(trivialOwner())
 {
     setupOriginalPlane(width, height);
 }
 
 void CanvasImage::contentUpdated()
 {
     flushAllCaches();
 }
 
 void CanvasImage::flushAllCaches()
 {
     // Flush all the planes, including any scaled ones, etc.
     original->flushCache();
 
     for (QMap<QPair<int, int>, PixmapPlane *>::iterator i = scaled.begin(); i != scaled.end(); ++i) {
         i.value()->flushCache();
     }
 }
 
 void CanvasImage::resizeImage(int width, int height)
 {
     // Dump any cached info, it's useless
     flushAllCaches();
 
     // Create a new master pixmap and raw image planes
     delete original;
     setupOriginalPlane(width, height);
     RawImagePlane *imgPlane = static_cast<RawImagePlane *>(original->parent);
 
     // Now go through the scaling cache, and fix things up.
     for (QMap<QPair<int, int>, PixmapPlane *>::iterator i = scaled.begin(); i != scaled.end(); ++i) {
         PixmapPlane *scaledPix = i.value();
         delete scaledPix->parent;
         scaledPix->parent = new ScaledImagePlane(scaledPix->width, scaledPix->height, imgPlane);
     }
 }
 
 }