1 /*

     2    Copyright (C) 2007 Eric Seidel <eric@webkit.org>

     3    Copyright (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>

     4    Copyright (C) 2008 Eric Seidel <eric@webkit.org>

     5 

     6    This library is free software; you can redistribute it and/or

     7    modify it under the terms of the GNU Library General Public

     8    License as published by the Free Software Foundation; either

     9    version 2 of the License, or (at your option) any later version.

    10 

    11    This library is distributed in the hope that it will be useful,

    12    but WITHOUT ANY WARRANTY; without even the implied warranty of

    13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    14    Library General Public License for more details.

    15 

    16    You should have received a copy of the GNU Library General Public License

    17    along with this library; see the file COPYING.LIB.  If not, write to

    18    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

    19    Boston, MA 02110-1301, USA.

    20 */

    21 

    22 #include "config.h"

    23 

    24 #if ENABLE(SVG_FONTS)

    25 #include "SVGHKernElement.h"

    26 

    27 #include "SVGFontElement.h"

    28 #include "SVGFontFaceElement.h"

    29 #include "SVGFontData.h"

    30 #include "SVGNames.h"

    31 #include "SimpleFontData.h"

    32 #include "XMLNames.h"

    33 

    34 namespace WebCore {

    35 

    36 using namespace SVGNames;

    37 

    38 SVGHKernElement::SVGHKernElement(const QualifiedName& tagName, Document* doc)

    39     : SVGElement(tagName, doc)

    40 {

    41 }

    42 

    43 SVGHKernElement::~SVGHKernElement()

    44 {

    45 }

    46 

    47 void SVGHKernElement::insertedIntoDocument()

    48 {

    49     Node* fontNode = parentNode();

    50     if (fontNode && fontNode->hasTagName(SVGNames::fontTag)) {

    51         if (SVGFontElement* element = static_cast<SVGFontElement*>(fontNode))

    52             element->invalidateGlyphCache();

    53     }

    54 }

    55 

    56 void SVGHKernElement::removedFromDocument()

    57 {

    58     Node* fontNode = parentNode();

    59     if (fontNode && fontNode->hasTagName(SVGNames::fontTag)) {

    60         if (SVGFontElement* element = static_cast<SVGFontElement*>(fontNode))

    61             element->invalidateGlyphCache();

    62     }

    63 }

    64 

    65 void SVGHKernElement::buildHorizontalKerningPair(KerningPairVector& kerningPairs)

    66 {

    67     String u1 = getAttribute(u1Attr);

    68     String g1 = getAttribute(g1Attr);

    69     String u2 = getAttribute(u2Attr);

    70     String g2 = getAttribute(g2Attr);

    71     if ((u1.isEmpty() && g1.isEmpty()) || (u2.isEmpty() && g2.isEmpty()))

    72         return;

    73 

    74     SVGKerningPair kerningPair;

    75     if (parseGlyphName(g1, kerningPair.glyphName1)

    76         && parseGlyphName(g2, kerningPair.glyphName2)

    77         && parseKerningUnicodeString(u1, kerningPair.unicodeRange1, kerningPair.unicodeName1)

    78         && parseKerningUnicodeString(u2, kerningPair.unicodeRange2, kerningPair.unicodeName2)) {

    79         kerningPair.kerning = getAttribute(kAttr).string().toFloat();

    80         kerningPairs.append(kerningPair);

    81     }

    82 }

    83 

    84 }

    85 

    86 #endif // ENABLE(SVG_FONTS)