1/*
2 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB.  If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20#include "config.h"
21
22#if ENABLE(SVG_FONTS)
23#include "core/svg/SVGVKernElement.h"
24
25#include "core/svg/SVGParserUtilities.h"
26
27namespace WebCore {
28
29inline SVGVKernElement::SVGVKernElement(Document& document)
30    : SVGElement(SVGNames::vkernTag, document)
31{
32    ScriptWrappable::init(this);
33}
34
35PassRefPtr<SVGVKernElement> SVGVKernElement::create(Document& document)
36{
37    return adoptRef(new SVGVKernElement(document));
38}
39
40Node::InsertionNotificationRequest SVGVKernElement::insertedInto(ContainerNode* rootParent)
41{
42    if (rootParent->inDocument()) {
43        ContainerNode* fontNode = parentNode();
44        if (fontNode && fontNode->hasTagName(SVGNames::fontTag))
45            toSVGFontElement(fontNode)->invalidateGlyphCache();
46    }
47
48    return SVGElement::insertedInto(rootParent);
49}
50
51void SVGVKernElement::removedFrom(ContainerNode* rootParent)
52{
53    ContainerNode* fontNode = parentNode();
54    if (fontNode && fontNode->hasTagName(SVGNames::fontTag))
55        toSVGFontElement(fontNode)->invalidateGlyphCache();
56
57    SVGElement::removedFrom(rootParent);
58}
59
60void SVGVKernElement::buildVerticalKerningPair(KerningPairVector& kerningPairs)
61{
62    String u1 = fastGetAttribute(SVGNames::u1Attr);
63    String g1 = fastGetAttribute(SVGNames::g1Attr);
64    String u2 = fastGetAttribute(SVGNames::u2Attr);
65    String g2 = fastGetAttribute(SVGNames::g2Attr);
66    if ((u1.isEmpty() && g1.isEmpty()) || (u2.isEmpty() && g2.isEmpty()))
67        return;
68
69    SVGKerningPair kerningPair;
70    if (parseGlyphName(g1, kerningPair.glyphName1)
71        && parseGlyphName(g2, kerningPair.glyphName2)
72        && parseKerningUnicodeString(u1, kerningPair.unicodeRange1, kerningPair.unicodeName1)
73        && parseKerningUnicodeString(u2, kerningPair.unicodeRange2, kerningPair.unicodeName2)) {
74        kerningPair.kerning = fastGetAttribute(SVGNames::kAttr).string().toFloat();
75        kerningPairs.append(kerningPair);
76    }
77}
78
79}
80
81#endif // ENABLE(SVG_FONTS)
82