15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org) 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * This library is free software; you can redistribute it and/or 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modify it under the terms of the GNU Library General Public 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * License as published by the Free Software Foundation; either 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * version 2 of the License, or (at your option) any later version. 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * This library is distributed in the hope that it will be useful, 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * but WITHOUT ANY WARRANTY; without even the implied warranty of 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Library General Public License for more details. 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * You should have received a copy of the GNU Library General Public License 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * along with this library; see the file COPYING.LIB. If not, write to 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Boston, MA 02110-1301, USA. 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "config.h" 2353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/platform/graphics/transforms/MatrixTransformOperation.h" 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include <algorithm> 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)using namespace std; 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)namespace WebCore { 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)PassRefPtr<TransformOperation> MatrixTransformOperation::blend(const TransformOperation* from, double progress, bool blendToIdentity) 325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (from && !from->isSameType(*this)) 345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return this; 355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // convert the TransformOperations into matrices 375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) FloatSize size; 385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) TransformationMatrix fromT; 395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) TransformationMatrix toT(m_a, m_b, m_c, m_d, m_e, m_f); 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (from) { 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const MatrixTransformOperation* m = static_cast<const MatrixTransformOperation*>(from); 425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) fromT.setMatrix(m->m_a, m->m_b, m->m_c, m->m_d, m->m_e, m->m_f); 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 4402772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (blendToIdentity) 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) std::swap(fromT, toT); 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) toT.blend(fromT, progress); 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return MatrixTransformOperation::create(toT.a(), toT.b(), toT.c(), toT.d(), toT.e(), toT.f()); 505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} // namespace WebCore 53