1/* 2 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "TiledDrawingArea.h" 28 29#if ENABLE(TILED_BACKING_STORE) 30 31#include "UpdateChunk.h" 32#include "WebPage.h" 33#include <WebCore/GraphicsContext.h> 34 35#include <QImage> 36#include <QPainter> 37 38using namespace WebCore; 39 40namespace WebKit { 41 42void TiledDrawingArea::paintIntoUpdateChunk(UpdateChunk* updateChunk, float scale) 43{ 44 IntRect tileRect = updateChunk->rect(); 45 QImage image(updateChunk->createImage()); 46 QPainter painter(&image); 47 // Now paint into the backing store. 48 GraphicsContext graphicsContext(&painter); 49 graphicsContext.translate(-tileRect.x(), -tileRect.y()); 50 graphicsContext.scale(FloatSize(scale, scale)); 51 IntRect contentRect = enclosingIntRect(FloatRect(tileRect.x() / scale, 52 tileRect.y() / scale, 53 tileRect.width() / scale, 54 tileRect.height() / scale)); 55 m_webPage->drawRect(graphicsContext, contentRect); 56} 57 58} // namespace WebKit 59 60#endif // TILED_BACKING_STORE 61