SVGVKernElement.cpp [plain text]
#include "config.h"
#if ENABLE(SVG_FONTS)
#include "SVGVKernElement.h"
#include "SVGFontData.h"
#include "SVGFontElement.h"
#include "SVGFontFaceElement.h"
#include "SVGNames.h"
#include "SimpleFontData.h"
#include "XMLNames.h"
namespace WebCore {
using namespace SVGNames;
inline SVGVKernElement::SVGVKernElement(const QualifiedName& tagName, Document* document)
: SVGElement(tagName, document)
{
ASSERT(hasTagName(vkernTag));
}
PassRefPtr<SVGVKernElement> SVGVKernElement::create(const QualifiedName& tagName, Document* document)
{
return adoptRef(new SVGVKernElement(tagName, document));
}
void SVGVKernElement::insertedIntoDocument()
{
ContainerNode* fontNode = parentNode();
if (fontNode && fontNode->hasTagName(SVGNames::fontTag)) {
if (SVGFontElement* element = static_cast<SVGFontElement*>(fontNode))
element->invalidateGlyphCache();
}
SVGElement::insertedIntoDocument();
}
void SVGVKernElement::removedFromDocument()
{
ContainerNode* fontNode = parentNode();
if (fontNode && fontNode->hasTagName(SVGNames::fontTag)) {
if (SVGFontElement* element = static_cast<SVGFontElement*>(fontNode))
element->invalidateGlyphCache();
}
SVGElement::removedFromDocument();
}
void SVGVKernElement::buildVerticalKerningPair(KerningPairVector& kerningPairs)
{
String u1 = getAttribute(u1Attr);
String g1 = getAttribute(g1Attr);
String u2 = getAttribute(u2Attr);
String g2 = getAttribute(g2Attr);
if ((u1.isEmpty() && g1.isEmpty()) || (u2.isEmpty() && g2.isEmpty()))
return;
SVGKerningPair kerningPair;
if (parseGlyphName(g1, kerningPair.glyphName1)
&& parseGlyphName(g2, kerningPair.glyphName2)
&& parseKerningUnicodeString(u1, kerningPair.unicodeRange1, kerningPair.unicodeName1)
&& parseKerningUnicodeString(u2, kerningPair.unicodeRange2, kerningPair.unicodeName2)) {
kerningPair.kerning = getAttribute(kAttr).string().toFloat();
kerningPairs.append(kerningPair);
}
}
}
#endif // ENABLE(SVG_FONTS)