SVGVKernElement.cpp [plain text]
#include "config.h"
#if ENABLE(SVG_FONTS)
#include "SVGVKernElement.h"
#include "SVGFontElement.h"
#include "SVGFontFaceElement.h"
#include "SVGNames.h"
#include "SVGParserUtilities.h"
namespace WebCore {
inline SVGVKernElement::SVGVKernElement(const QualifiedName& tagName, Document& document)
: SVGElement(tagName, document)
{
ASSERT(hasTagName(SVGNames::vkernTag));
}
Ref<SVGVKernElement> SVGVKernElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new SVGVKernElement(tagName, document));
}
Node::InsertionNotificationRequest SVGVKernElement::insertedInto(ContainerNode& rootParent)
{
if (rootParent.inDocument()) {
ContainerNode* fontNode = parentNode();
if (is<SVGFontElement>(fontNode))
downcast<SVGFontElement>(*fontNode).invalidateGlyphCache();
}
return SVGElement::insertedInto(rootParent);
}
void SVGVKernElement::removedFrom(ContainerNode& rootParent)
{
ContainerNode* fontNode = parentNode();
if (is<SVGFontElement>(fontNode))
downcast<SVGFontElement>(*fontNode).invalidateGlyphCache();
SVGElement::removedFrom(rootParent);
}
bool SVGVKernElement::buildVerticalKerningPair(SVGKerningPair& kerningPair) const
{
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 false;
if (parseGlyphName(g1, kerningPair.glyphName1)
&& parseGlyphName(g2, kerningPair.glyphName2)
&& parseKerningUnicodeString(u1, kerningPair.unicodeRange1, kerningPair.unicodeName1)
&& parseKerningUnicodeString(u2, kerningPair.unicodeRange2, kerningPair.unicodeName2)) {
bool ok = false;
kerningPair.kerning = fastGetAttribute(SVGNames::kAttr).string().toFloat(&ok);
return ok;
}
return false;
}
}
#endif // ENABLE(SVG_FONTS)