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 "TranslateTransformOperation.h"
24
25#include "FloatConversion.h"
26#include <wtf/text/TextStream.h>
27
28namespace WebCore {
29
30bool TranslateTransformOperation::operator==(const TransformOperation& other) const
31{
32 if (!isSameType(other))
33 return false;
34 const TranslateTransformOperation& t = downcast<TranslateTransformOperation>(other);
35 return m_x == t.m_x && m_y == t.m_y && m_z == t.m_z;
36}
37
38Ref<TransformOperation> TranslateTransformOperation::blend(const TransformOperation* from, double progress, bool blendToIdentity)
39{
40 if (from && !from->isSameType(*this))
41 return *this;
42
43 Length zeroLength(0, Fixed);
44 if (blendToIdentity)
45 return TranslateTransformOperation::create(WebCore::blend(m_x, zeroLength, progress), WebCore::blend(m_y, zeroLength, progress), WebCore::blend(m_z, zeroLength, progress), type());
46
47 const TranslateTransformOperation* fromOp = downcast<TranslateTransformOperation>(from);
48 Length fromX = fromOp ? fromOp->m_x : zeroLength;
49 Length fromY = fromOp ? fromOp->m_y : zeroLength;
50 Length fromZ = fromOp ? fromOp->m_z : zeroLength;
51 return TranslateTransformOperation::create(WebCore::blend(fromX, x(), progress), WebCore::blend(fromY, y(), progress), WebCore::blend(fromZ, z(), progress), type());
52}
53
54void TranslateTransformOperation::dump(TextStream& ts) const
55{
56 ts << type() << "(" << m_x << ", " << m_y << ", " << m_z << ")";
57}
58
59} // namespace WebCore
60