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| 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 "core/platform/graphics/transforms/ScaleTransformOperation.h" | |
| 24 | |
| 25 #include "platform/animation/AnimationUtilities.h" | |
| 26 | |
| 27 namespace WebCore { | |
| 28 | |
| 29 PassRefPtr<TransformOperation> ScaleTransformOperation::blend(const TransformOpe
ration* from, double progress, bool blendToIdentity) | |
| 30 { | |
| 31 if (from && !from->isSameType(*this)) | |
| 32 return this; | |
| 33 | |
| 34 if (blendToIdentity) | |
| 35 return ScaleTransformOperation::create(WebCore::blend(m_x, 1.0, progress
), | |
| 36 WebCore::blend(m_y, 1.0, progress
), | |
| 37 WebCore::blend(m_z, 1.0, progress
), m_type); | |
| 38 | |
| 39 const ScaleTransformOperation* fromOp = static_cast<const ScaleTransformOper
ation*>(from); | |
| 40 double fromX = fromOp ? fromOp->m_x : 1.0; | |
| 41 double fromY = fromOp ? fromOp->m_y : 1.0; | |
| 42 double fromZ = fromOp ? fromOp->m_z : 1.0; | |
| 43 return ScaleTransformOperation::create(WebCore::blend(fromX, m_x, progress), | |
| 44 WebCore::blend(fromY, m_y, progress), | |
| 45 WebCore::blend(fromZ, m_z, progress),
m_type); | |
| 46 } | |
| 47 | |
| 48 } // namespace WebCore | |
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