/* * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org) * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public License * along with this library; see the file COPYING.LIB. If not, write to * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301, USA. * */ #include "config.h" #include "SkewTransformOperation.h" #include "AnimationUtilities.h" namespace WebCore { PassRefPtr<TransformOperation> SkewTransformOperation::blend(const TransformOperation* from, double progress, bool blendToIdentity) { if (from && !from->isSameType(*this)) return this; if (blendToIdentity) return SkewTransformOperation::create(WebCore::blend(m_angleX, 0.0, progress), WebCore::blend(m_angleY, 0.0, progress), m_type); const SkewTransformOperation* fromOp = static_cast<const SkewTransformOperation*>(from); double fromAngleX = fromOp ? fromOp->m_angleX : 0; double fromAngleY = fromOp ? fromOp->m_angleY : 0; return SkewTransformOperation::create(WebCore::blend(fromAngleX, m_angleX, progress), WebCore::blend(fromAngleY, m_angleY, progress), m_type); } } // namespace WebCore