1/* 2 * Copyright 2012, The Android Open Source Project 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 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * 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 THE COPYRIGHT HOLDERS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27 28#include "DrawExtra.h" 29#include "GLExtras.h" 30#include "LayerAndroid.h" 31#include "SkCanvas.h" 32#include "SkRegion.h" 33#include "WebViewCore.h" 34 35RegionLayerDrawExtra::RegionLayerDrawExtra() 36 : m_highlightColor(COLOR_HOLO_LIGHT) 37{} 38 39RegionLayerDrawExtra::~RegionLayerDrawExtra() 40{ 41 HighlightRegionMap::iterator end = m_highlightRegions.end(); 42 for (HighlightRegionMap::iterator it = m_highlightRegions.begin(); it != end; ++it) { 43 delete it->second; 44 it->second = 0; 45 } 46} 47 48SkRegion* RegionLayerDrawExtra::getHighlightRegionsForLayer(const LayerAndroid* layer) 49{ 50 int layerId = layer ? layer->uniqueId() : 0; 51 return m_highlightRegions.get(layerId); 52} 53 54void RegionLayerDrawExtra::addHighlightRegion(const LayerAndroid* layer, const Vector<IntRect>& rects, 55 const IntPoint& additionalOffset) 56{ 57 if (rects.isEmpty()) 58 return; 59 int layerId = layer ? layer->uniqueId() : 0; 60 SkRegion* region = m_highlightRegions.get(layerId); 61 if (!region) { 62 region = new SkRegion(); 63 m_highlightRegions.set(layerId, region); 64 } 65 IntPoint offset = additionalOffset; 66 WebViewCore::layerToAbsoluteOffset(layer, offset); 67 for (size_t i = 0; i < rects.size(); i++) { 68 IntRect r = rects.at(i); 69 r.move(-offset.x(), -offset.y()); 70 region->op(r.x(), r.y(), r.maxX(), r.maxY(), SkRegion::kUnion_Op); 71 } 72} 73 74void RegionLayerDrawExtra::draw(SkCanvas* canvas, LayerAndroid* layer) 75{ 76 SkRegion* region = getHighlightRegionsForLayer(layer); 77 if (!region || region->isEmpty()) 78 return; 79 SkRegion::Iterator rgnIter(*region); 80 SkPaint paint; 81 paint.setColor(m_highlightColor.rgb()); 82 while (!rgnIter.done()) { 83 const SkIRect& rect = rgnIter.rect(); 84 canvas->drawIRect(rect, paint); 85 rgnIter.next(); 86 } 87} 88 89void RegionLayerDrawExtra::drawGL(GLExtras* glExtras, const LayerAndroid* layer) 90{ 91 SkRegion* region = getHighlightRegionsForLayer(layer); 92 if (!region || region->isEmpty()) 93 return; 94 const TransformationMatrix* transform = layer ? layer->drawTransform() : 0; 95 glExtras->drawRegion(*region, true, false, transform, m_highlightColor); 96} 97