1/*
2    Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
3                  2004, 2005 Rob Buis <buis@kde.org>
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#include "config.h"
22
23#if ENABLE(SVG)
24#include "SVGTransformList.h"
25
26#include "AffineTransform.h"
27#include "SVGSVGElement.h"
28#include "SVGTransform.h"
29
30using namespace WebCore;
31
32SVGTransformList::SVGTransformList(const QualifiedName& attributeName)
33    : SVGPODList<SVGTransform>(attributeName)
34{
35}
36
37SVGTransformList::~SVGTransformList()
38{
39}
40
41SVGTransform SVGTransformList::createSVGTransformFromMatrix(const AffineTransform& matrix) const
42{
43    return SVGSVGElement::createSVGTransformFromMatrix(matrix);
44}
45
46SVGTransform SVGTransformList::consolidate()
47{
48    ExceptionCode ec = 0;
49    return initialize(concatenate(), ec);
50}
51
52SVGTransform SVGTransformList::concatenate() const
53{
54    unsigned int length = numberOfItems();
55    if (!length)
56        return SVGTransform();
57
58    AffineTransform matrix;
59    ExceptionCode ec = 0;
60    for (unsigned int i = 0; i < length; i++)
61        matrix = getItem(i, ec).matrix() * matrix;
62
63    return SVGTransform(matrix);
64}
65
66String SVGTransformList::valueAsString() const
67{
68    // TODO: We may want to build a real transform string, instead of concatting to a matrix(...).
69    SVGTransform transform = concatenate();
70    if (transform.type() == SVGTransform::SVG_TRANSFORM_MATRIX) {
71        AffineTransform matrix = transform.matrix();
72        return String::format("matrix(%f %f %f %f %f %f)", matrix.a(), matrix.b(), matrix.c(), matrix.d(), matrix.e(), matrix.f());
73    }
74
75    return String();
76}
77
78#endif // ENABLE(SVG)
79