1/* 2 * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org) 3 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 * 20 */ 21 22#include "config.h" 23#include "ScaleTransformOperation.h" 24 25#include "AnimationUtilities.h" 26 27namespace WebCore { 28 29bool ScaleTransformOperation::operator==(const TransformOperation& o) const 30{ 31 if (!isSameType(o)) 32 return false; 33 const ScaleTransformOperation& s = toScaleTransformOperation(o); 34 return m_x == s.m_x && m_y == s.m_y && m_z == s.m_z; 35} 36 37PassRefPtr<TransformOperation> ScaleTransformOperation::blend(const TransformOperation* from, double progress, bool blendToIdentity) 38{ 39 if (from && !from->isSameType(*this)) 40 return this; 41 42 if (blendToIdentity) 43 return ScaleTransformOperation::create(WebCore::blend(m_x, 1.0, progress), 44 WebCore::blend(m_y, 1.0, progress), 45 WebCore::blend(m_z, 1.0, progress), m_type); 46 47 const ScaleTransformOperation* fromOp = toScaleTransformOperation(from); 48 double fromX = fromOp ? fromOp->m_x : 1.0; 49 double fromY = fromOp ? fromOp->m_y : 1.0; 50 double fromZ = fromOp ? fromOp->m_z : 1.0; 51 return ScaleTransformOperation::create(WebCore::blend(fromX, m_x, progress), 52 WebCore::blend(fromY, m_y, progress), 53 WebCore::blend(fromZ, m_z, progress), m_type); 54} 55 56} // namespace WebCore 57