svghkernelement.cpp

来自「linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自Web」· C++ 代码 · 共 82 行

/*
   Copyright (C) 2007 Eric Seidel <[e-mail]>
   Copyright (C) 2007, 2008 Nikolas Zimmermann <[e-mail]>
   Copyright (C) 2008 Eric Seidel <[e-mail]>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/

#include "config.h"

#if ENABLE(SVG_FONTS)
#include "SVGHKernElement.h"

#include "SVGFontElement.h"
#include "SVGFontFaceElement.h"
#include "SVGFontData.h"
#include "SVGNames.h"
#include "SVGParserUtilities.h"
#include "SimpleFontData.h"
#include "XMLNames.h"

namespace WebCore {

using namespace SVGNames;

SVGHKernElement::SVGHKernElement(const QualifiedName& tagName, Document* doc)
    : SVGElement(tagName, doc)
{
}

SVGHKernElement::~SVGHKernElement()
{
}

void SVGHKernElement::insertedIntoDocument()
{
    Node* fontNode = parentNode();
    if (fontNode && fontNode->hasTagName(fontTag)) {
        if (SVGFontElement* element = static_cast<SVGFontElement*>(fontNode))
            element->invalidateGlyphCache();
    }
}

void SVGHKernElement::removedFromDocument()
{
    Node* fontNode = parentNode();
    if (fontNode && fontNode->hasTagName(fontTag)) {
        if (SVGFontElement* element = static_cast<SVGFontElement*>(fontNode))
            element->invalidateGlyphCache();
    }
}

SVGHorizontalKerningPair SVGHKernElement::buildHorizontalKerningPair() const
{
    SVGHorizontalKerningPair kerningPair;

    kerningPair.unicode1 = getAttribute(u1Attr);
    kerningPair.glyphName1 = getAttribute(g1Attr);
    kerningPair.unicode2 = getAttribute(u2Attr);
    kerningPair.glyphName2 = getAttribute(g2Attr);
    kerningPair.kerning = getAttribute(kAttr).string().toDouble();

    return kerningPair;
}

}

#endif // ENABLE(SVG_FONTS)