| /* |
| * 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 "ScaleTransformOperation.h" |
| |
| namespace WebCore { |
| |
| PassRefPtr<TransformOperation> ScaleTransformOperation::blend(const TransformOperation* from, double progress, bool blendToIdentity) |
| { |
| if (from && !from->isSameType(*this)) |
| return this; |
| |
| if (blendToIdentity) |
| return ScaleTransformOperation::create(m_x + (1. - m_x) * progress, |
| m_y + (1. - m_y) * progress, |
| m_z + (1. - m_z) * progress, m_type); |
| |
| const ScaleTransformOperation* fromOp = static_cast<const ScaleTransformOperation*>(from); |
| double fromX = fromOp ? fromOp->m_x : 1.; |
| double fromY = fromOp ? fromOp->m_y : 1.; |
| double fromZ = fromOp ? fromOp->m_z : 1.; |
| return ScaleTransformOperation::create(fromX + (m_x - fromX) * progress, |
| fromY + (m_y - fromY) * progress, |
| fromZ + (m_z - fromZ) * progress, m_type); |
| } |
| |
| } // namespace WebCore |
