SVGHKernElement.cpp [plain text]
#include "config.h"
#if ENABLE(SVG_FONTS)
#include "SVGHKernElement.h"
#include "SVGFontElement.h"
#include "SVGFontFaceElement.h"
#include "SVGNames.h"
namespace WebCore {
inline SVGHKernElement::SVGHKernElement(const QualifiedName& tagName, Document& document)
: SVGElement(tagName, document)
{
ASSERT(hasTagName(SVGNames::hkernTag));
}
PassRefPtr<SVGHKernElement> SVGHKernElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(new SVGHKernElement(tagName, document));
}
Node::InsertionNotificationRequest SVGHKernElement::insertedInto(ContainerNode& rootParent)
{
ContainerNode* fontNode = parentNode();
if (fontNode && isSVGFontElement(fontNode))
toSVGFontElement(fontNode)->invalidateGlyphCache();
return SVGElement::insertedInto(rootParent);
}
void SVGHKernElement::removedFrom(ContainerNode& rootParent)
{
ContainerNode* fontNode = parentNode();
if (fontNode && isSVGFontElement(fontNode))
toSVGFontElement(fontNode)->invalidateGlyphCache();
SVGElement::removedFrom(rootParent);
}
void SVGHKernElement::buildHorizontalKerningPair(SVGKerningMap& kerningMap)
{
String u1 = fastGetAttribute(SVGNames::u1Attr);
String g1 = fastGetAttribute(SVGNames::g1Attr);
String u2 = fastGetAttribute(SVGNames::u2Attr);
String g2 = fastGetAttribute(SVGNames::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 = fastGetAttribute(SVGNames::kAttr).string().toFloat();
kerningMap.insert(kerningPair);
}
}
}
#endif // ENABLE(SVG_FONTS)