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 "SVGVKernElement.h"
24
25 #include "SVGFontData.h"
26 #include "SVGFontElement.h"
27 #include "SVGFontFaceElement.h"
28 #include "SVGNames.h"
29 #include "SimpleFontData.h"
30 #include "XMLNames.h"
31
32 namespace WebCore {
33
34 using namespace SVGNames;
35
SVGVKernElement(const QualifiedName & tagName,Document * document)36 inline SVGVKernElement::SVGVKernElement(const QualifiedName& tagName, Document* document)
37 : SVGElement(tagName, document)
38 {
39 }
40
create(const QualifiedName & tagName,Document * document)41 PassRefPtr<SVGVKernElement> SVGVKernElement::create(const QualifiedName& tagName, Document* document)
42 {
43 return adoptRef(new SVGVKernElement(tagName, document));
44 }
45
insertedIntoDocument()46 void SVGVKernElement::insertedIntoDocument()
47 {
48 ContainerNode* fontNode = parentNode();
49 if (fontNode && fontNode->hasTagName(SVGNames::fontTag)) {
50 if (SVGFontElement* element = static_cast<SVGFontElement*>(fontNode))
51 element->invalidateGlyphCache();
52 }
53 SVGElement::insertedIntoDocument();
54 }
55
removedFromDocument()56 void SVGVKernElement::removedFromDocument()
57 {
58 ContainerNode* fontNode = parentNode();
59 if (fontNode && fontNode->hasTagName(SVGNames::fontTag)) {
60 if (SVGFontElement* element = static_cast<SVGFontElement*>(fontNode))
61 element->invalidateGlyphCache();
62 }
63 SVGElement::removedFromDocument();
64 }
65
buildVerticalKerningPair(KerningPairVector & kerningPairs)66 void SVGVKernElement::buildVerticalKerningPair(KerningPairVector& kerningPairs)
67 {
68 String u1 = getAttribute(u1Attr);
69 String g1 = getAttribute(g1Attr);
70 String u2 = getAttribute(u2Attr);
71 String g2 = getAttribute(g2Attr);
72 if ((u1.isEmpty() && g1.isEmpty()) || (u2.isEmpty() && g2.isEmpty()))
73 return;
74
75 SVGKerningPair kerningPair;
76 if (parseGlyphName(g1, kerningPair.glyphName1)
77 && parseGlyphName(g2, kerningPair.glyphName2)
78 && parseKerningUnicodeString(u1, kerningPair.unicodeRange1, kerningPair.unicodeName1)
79 && parseKerningUnicodeString(u2, kerningPair.unicodeRange2, kerningPair.unicodeName2)) {
80 kerningPair.kerning = getAttribute(kAttr).string().toFloat();
81 kerningPairs.append(kerningPair);
82 }
83 }
84
85 }
86
87 #endif // ENABLE(SVG_FONTS)
88