15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2011 Apple 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 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * are met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 1. Redistributions of source code must retain the above copyright 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 2. Redistributions in binary form must reproduce the above copyright 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer in the 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * documentation and/or other materials provided with the distribution. 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2302772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "config.h" 2753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/rendering/HitTestingTransformState.h" 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 291e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles)#include "platform/geometry/LayoutRect.h" 3002772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch#include "wtf/PassOwnPtr.h" 315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 32c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)namespace blink { 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void HitTestingTransformState::translate(int x, int y, TransformAccumulation accumulate) 355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 3602772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch m_accumulatedTransform.translate(x, y); 375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (accumulate == FlattenTransform) 385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) flattenWithTransform(m_accumulatedTransform); 395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_accumulatingTransform = accumulate == AccumulateTransform; 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void HitTestingTransformState::applyTransform(const TransformationMatrix& transformFromContainer, TransformAccumulation accumulate) 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_accumulatedTransform.multiply(transformFromContainer); 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (accumulate == FlattenTransform) 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) flattenWithTransform(m_accumulatedTransform); 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_accumulatingTransform = accumulate == AccumulateTransform; 505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void HitTestingTransformState::flatten() 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) flattenWithTransform(m_accumulatedTransform); 555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void HitTestingTransformState::flattenWithTransform(const TransformationMatrix& t) 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) TransformationMatrix inverseTransform = t.inverse(); 605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_lastPlanarPoint = inverseTransform.projectPoint(m_lastPlanarPoint); 615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_lastPlanarQuad = inverseTransform.projectQuad(m_lastPlanarQuad); 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_lastPlanarArea = inverseTransform.projectQuad(m_lastPlanarArea); 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_accumulatedTransform.makeIdentity(); 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_accumulatingTransform = false; 665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)FloatPoint HitTestingTransformState::mappedPoint() const 695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return m_accumulatedTransform.inverse().projectPoint(m_lastPlanarPoint); 715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)FloatQuad HitTestingTransformState::mappedQuad() const 745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return m_accumulatedTransform.inverse().projectQuad(m_lastPlanarQuad); 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)FloatQuad HitTestingTransformState::mappedArea() const 795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return m_accumulatedTransform.inverse().projectQuad(m_lastPlanarArea); 815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)LayoutRect HitTestingTransformState::boundsOfMappedArea() const 845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return m_accumulatedTransform.inverse().clampedBoundsOfProjectedQuad(m_lastPlanarArea); 865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 88c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)} // namespace blink 89