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130 lines
3.6 KiB
C++
130 lines
3.6 KiB
C++
/*
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Progressive image displaying library.
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Copyright (C) 2004,2005 Maks Orlovich (maksim@kde.org)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "imagepainter.h"
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#include "image.h"
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#include "pixmapplane.h"
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#include "imagemanager.h"
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namespace khtmlImLoad {
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ImagePainter::ImagePainter(Image* _image):image(_image), sizeRefd(false)
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{ //No need to ref, default size.
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size = image->size();
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}
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ImagePainter::ImagePainter(Image* _image, QSize _size):image(_image), size(_size), sizeRefd(false)
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{
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if (!ImageManager::isAcceptableScaleSize(_size.width(), _size.height()))
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setDefaultSize();
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}
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ImagePainter::~ImagePainter()
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{
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if (sizeRefd)
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image->derefSize(size);
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}
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ImagePainter::ImagePainter(const ImagePainter& src)
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{
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image = src.image;
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size = src.size;
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sizeRefd = false;
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}
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ImagePainter& ImagePainter::operator=(const ImagePainter& src)
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{
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if (sizeRefd)
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image->derefSize(size);
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image = src.image;
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size = src.size;
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sizeRefd = false;
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return *this;
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}
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void ImagePainter::setSize(QSize _size)
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{
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if (!ImageManager::isAcceptableScaleSize(_size.width(), _size.height())) {
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setDefaultSize();
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return;
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}
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// Don't do anything if size didn't change,
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// to avoid dropping the image..
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if (size == _size)
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return;
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if (sizeRefd)
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image->derefSize(size);
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size = _size;
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sizeRefd = false;
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}
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void ImagePainter::setDefaultSize()
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{
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if (sizeRefd)
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image->derefSize(size);
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size = image->size();
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sizeRefd = false;
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}
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void ImagePainter::paint(int dx, int dy, QPainter* p, int sx, int sy,
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int width, int height)
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{
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if (!image->mayPaint())
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// ### fallback painting in case bg?
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return;
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// Do our lazy ref if needed. Safe due to above
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if (!sizeRefd && size != image->size())
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{
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image->refSize(size);
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sizeRefd = true;
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}
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PixmapPlane* plane = image->getSize(size);
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if (plane->animProvider)
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{
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// Clip the request ourselves when animating..
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if (width == -1)
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width = size.width();
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if (height == -1)
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height = size.height();
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QRect clippedRect = QRect(0, 0, size.width(), size.height())
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& QRect(sx, sy, width, height);
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plane->animProvider->paint(dx, dy, p, clippedRect.x(), clippedRect.y(),
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clippedRect.width(), clippedRect.height());
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return;
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}
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// non-animated, go straight to PixmapPlane; it clips itself
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plane->paint(dx, dy, p, sx, sy, width, height);
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}
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}
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// kate: indent-width 4; replace-tabs on; tab-width 4; space-indent on;
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