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 "SVGFontData.h"
28 #include "SVGFontElement.h"
29 #include "SVGFontFaceElement.h"
30 #include "SVGNames.h"
31 #include "SimpleFontData.h"
32 #include "XMLNames.h"
33
34 namespace WebCore {
35
36 using namespace SVGNames;
37
SVGHKernElement(const QualifiedName & tagName,Document * document)38 inline SVGHKernElement::SVGHKernElement(const QualifiedName& tagName, Document* document)
39 : SVGElement(tagName, document)
40 {
41 }
42
create(const QualifiedName & tagName,Document * document)43 PassRefPtr<SVGHKernElement> SVGHKernElement::create(const QualifiedName& tagName, Document* document)
44 {
45 return adoptRef(new SVGHKernElement(tagName, document));
46 }
47
insertedIntoDocument()48 void SVGHKernElement::insertedIntoDocument()
49 {
50 ContainerNode* fontNode = parentNode();
51 if (fontNode && fontNode->hasTagName(SVGNames::fontTag)) {
52 if (SVGFontElement* element = static_cast<SVGFontElement*>(fontNode))
53 element->invalidateGlyphCache();
54 }
55 SVGElement::insertedIntoDocument();
56 }
57
removedFromDocument()58 void SVGHKernElement::removedFromDocument()
59 {
60 ContainerNode* fontNode = parentNode();
61 if (fontNode && fontNode->hasTagName(SVGNames::fontTag)) {
62 if (SVGFontElement* element = static_cast<SVGFontElement*>(fontNode))
63 element->invalidateGlyphCache();
64 }
65 SVGElement::removedFromDocument();
66 }
67
buildHorizontalKerningPair(KerningPairVector & kerningPairs)68 void SVGHKernElement::buildHorizontalKerningPair(KerningPairVector& kerningPairs)
69 {
70 String u1 = getAttribute(u1Attr);
71 String g1 = getAttribute(g1Attr);
72 String u2 = getAttribute(u2Attr);
73 String g2 = getAttribute(g2Attr);
74 if ((u1.isEmpty() && g1.isEmpty()) || (u2.isEmpty() && g2.isEmpty()))
75 return;
76
77 SVGKerningPair kerningPair;
78 if (parseGlyphName(g1, kerningPair.glyphName1)
79 && parseGlyphName(g2, kerningPair.glyphName2)
80 && parseKerningUnicodeString(u1, kerningPair.unicodeRange1, kerningPair.unicodeName1)
81 && parseKerningUnicodeString(u2, kerningPair.unicodeRange2, kerningPair.unicodeName2)) {
82 kerningPair.kerning = getAttribute(kAttr).string().toFloat();
83 kerningPairs.append(kerningPair);
84 }
85 }
86
87 }
88
89 #endif // ENABLE(SVG_FONTS)
90