15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 2926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) * Copyright (C) 2013 Google Inc. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions are 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions of source code must retain the above copyright 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions in binary form must reproduce the above 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * copyright notice, this list of conditions and the following disclaimer 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * in the documentation and/or other materials provided with the 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * distribution. 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Neither the name of Google Inc. nor the names of its 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * contributors may be used to endorse or promote products derived from 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * this software without specific prior written permission. 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 31f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles)#ifndef ShadowList_h 32f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles)#define ShadowList_h 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 34f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles)#include "core/rendering/style/ShadowData.h" 3509380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)#include "platform/geometry/LayoutRect.h" 36197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch#include "platform/graphics/DrawLooperBuilder.h" 37197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch#include "wtf/PassOwnPtr.h" 38f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles)#include "wtf/RefCounted.h" 39f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles)#include "wtf/Vector.h" 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 41c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)namespace blink { 425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 43f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles)class FloatRect; 44f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles)class LayoutRect; 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 46f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles)typedef Vector<ShadowData, 1> ShadowDataVector; 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 48f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles)// These are used to store shadows in specified order, but we usually want to 49f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles)// iterate over them backwards as the first-specified shadow is painted on top. 50f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles)class ShadowList : public RefCounted<ShadowList> { 5193ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)public: 52f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) // This consumes passed in vector. 53f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) static PassRefPtr<ShadowList> adopt(ShadowDataVector& shadows) 54f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) { 55f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) return adoptRef(new ShadowList(shadows)); 56f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) } 57f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) const ShadowDataVector& shadows() const { return m_shadows; } 58f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) bool operator==(const ShadowList& o) const { return m_shadows == o.m_shadows; } 59f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) bool operator!=(const ShadowList& o) const { return !(*this == o); } 6093ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) 61f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) static PassRefPtr<ShadowList> blend(const ShadowList* from, const ShadowList* to, double progress); 6293ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) 639e12abdf8c3a23d52091ea54ebb6a04d327f9300Torne (Richard Coles) void adjustRectForShadow(LayoutRect&) const; 649e12abdf8c3a23d52091ea54ebb6a04d327f9300Torne (Richard Coles) void adjustRectForShadow(FloatRect&) const; 6593ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) 66197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch PassOwnPtr<DrawLooperBuilder> createDrawLooper(DrawLooperBuilder::ShadowAlphaMode, bool isHorizontal = true) const; 67197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch 6893ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)private: 69f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) ShadowList(ShadowDataVector& shadows) 70f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) { 71f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) // If we have no shadows, we use a null ShadowList 72f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) ASSERT(!shadows.isEmpty()); 73f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) m_shadows.swap(shadows); 74f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) m_shadows.shrinkToFit(); 75f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) } 76f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles) ShadowDataVector m_shadows; 7793ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)}; 7893ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) 79c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)} // namespace blink 8093ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) 81f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles)#endif // ShadowList_h 82