1/*
2 * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
3 * Copyright (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
4 * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 */
21
22#include "config.h"
23
24#if ENABLE(SVG_FONTS)
25#include "SVGHKernElement.h"
26
27#include "SVGFontElement.h"
28#include "SVGFontFaceElement.h"
29#include "SVGNames.h"
30#include <wtf/IsoMallocInlines.h>
31
32namespace WebCore {
33
34WTF_MAKE_ISO_ALLOCATED_IMPL(SVGHKernElement);
35
36inline SVGHKernElement::SVGHKernElement(const QualifiedName& tagName, Document& document)
37 : SVGElement(tagName, document)
38{
39 ASSERT(hasTagName(SVGNames::hkernTag));
40}
41
42Ref<SVGHKernElement> SVGHKernElement::create(const QualifiedName& tagName, Document& document)
43{
44 return adoptRef(*new SVGHKernElement(tagName, document));
45}
46
47bool SVGHKernElement::buildHorizontalKerningPair(SVGKerningPair& kerningPair) const
48{
49 auto& u1 = attributeWithoutSynchronization(SVGNames::u1Attr);
50 auto& g1 = attributeWithoutSynchronization(SVGNames::g1Attr);
51 auto& u2 = attributeWithoutSynchronization(SVGNames::u2Attr);
52 auto& g2 = attributeWithoutSynchronization(SVGNames::g2Attr);
53 if ((u1.isEmpty() && g1.isEmpty()) || (u2.isEmpty() && g2.isEmpty()))
54 return false;
55
56 if (parseGlyphName(g1, kerningPair.glyphName1)
57 && parseGlyphName(g2, kerningPair.glyphName2)
58 && parseKerningUnicodeString(u1, kerningPair.unicodeRange1, kerningPair.unicodeName1)
59 && parseKerningUnicodeString(u2, kerningPair.unicodeRange2, kerningPair.unicodeName2)) {
60 bool ok = false;
61 kerningPair.kerning = attributeWithoutSynchronization(SVGNames::kAttr).string().toFloat(&ok);
62 return ok;
63 }
64 return false;
65}
66
67}
68
69#endif // ENABLE(SVG_FONTS)
70