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
31namespace WebCore {
32
33inline SVGHKernElement::SVGHKernElement(const QualifiedName& tagName, Document& document)
34    : SVGElement(tagName, document)
35{
36    ASSERT(hasTagName(SVGNames::hkernTag));
37}
38
39PassRefPtr<SVGHKernElement> SVGHKernElement::create(const QualifiedName& tagName, Document& document)
40{
41    return adoptRef(new SVGHKernElement(tagName, document));
42}
43
44Node::InsertionNotificationRequest SVGHKernElement::insertedInto(ContainerNode& rootParent)
45{
46    ContainerNode* fontNode = parentNode();
47    if (fontNode && isSVGFontElement(fontNode))
48        toSVGFontElement(fontNode)->invalidateGlyphCache();
49
50    return SVGElement::insertedInto(rootParent);
51}
52
53void SVGHKernElement::removedFrom(ContainerNode& rootParent)
54{
55    ContainerNode* fontNode = parentNode();
56    if (fontNode && isSVGFontElement(fontNode))
57        toSVGFontElement(fontNode)->invalidateGlyphCache();
58
59    SVGElement::removedFrom(rootParent);
60}
61
62void SVGHKernElement::buildHorizontalKerningPair(SVGKerningMap& kerningMap)
63{
64    String u1 = fastGetAttribute(SVGNames::u1Attr);
65    String g1 = fastGetAttribute(SVGNames::g1Attr);
66    String u2 = fastGetAttribute(SVGNames::u2Attr);
67    String g2 = fastGetAttribute(SVGNames::g2Attr);
68    if ((u1.isEmpty() && g1.isEmpty()) || (u2.isEmpty() && g2.isEmpty()))
69        return;
70
71    SVGKerningPair kerningPair;
72    if (parseGlyphName(g1, kerningPair.glyphName1)
73        && parseGlyphName(g2, kerningPair.glyphName2)
74        && parseKerningUnicodeString(u1, kerningPair.unicodeRange1, kerningPair.unicodeName1)
75        && parseKerningUnicodeString(u2, kerningPair.unicodeRange2, kerningPair.unicodeName2)) {
76        kerningPair.kerning = fastGetAttribute(SVGNames::kAttr).string().toFloat();
77        kerningMap.insert(kerningPair);
78    }
79}
80
81}
82
83#endif // ENABLE(SVG_FONTS)
84