1 /*

     2    Copyright (C) Research In Motion Limited 2010. All rights reserved.

     3 

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

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

     6    License as published by the Free Software Foundation; either

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

     8 

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

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

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

    12    Library General Public License for more details.

    13 

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

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

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

    17    Boston, MA 02110-1301, USA.

    18 */

    19 

    20 #include "config.h"

    21 

    22 #if ENABLE(SVG_FONTS)

    23 #include "SVGVKernElement.h"

    24 

    25 #include "SVGFontData.h"

    26 #include "SVGFontElement.h"

    27 #include "SVGFontFaceElement.h"

    28 #include "SVGNames.h"

    29 #include "SimpleFontData.h"

    30 #include "XMLNames.h"

    31 

    32 namespace WebCore {

    33 

    34 using namespace SVGNames;

    35 

    36 SVGVKernElement::SVGVKernElement(const QualifiedName& tagName, Document* doc)

    37     : SVGElement(tagName, doc)

    38 {

    39 }

    40 

    41 SVGVKernElement::~SVGVKernElement()

    42 {

    43 }

    44 

    45 void SVGVKernElement::insertedIntoDocument()

    46 {

    47     Node* fontNode = parentNode();

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

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

    50             element->invalidateGlyphCache();

    51     }

    52 }

    53 

    54 void SVGVKernElement::removedFromDocument()

    55 {

    56     Node* fontNode = parentNode();

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

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

    59             element->invalidateGlyphCache();

    60     }

    61 }

    62 

    63 void SVGVKernElement::buildVerticalKerningPair(KerningPairVector& kerningPairs)

    64 {

    65     String u1 = getAttribute(u1Attr);

    66     String g1 = getAttribute(g1Attr);

    67     String u2 = getAttribute(u2Attr);

    68     String g2 = getAttribute(g2Attr);

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

    70         return;

    71 

    72     SVGKerningPair kerningPair;

    73     if (parseGlyphName(g1, kerningPair.glyphName1)

    74         && parseGlyphName(g2, kerningPair.glyphName2)

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

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

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

    78         kerningPairs.append(kerningPair);

    79     }

    80 }

    81 

    82 }

    83 

    84 #endif // ENABLE(SVG_FONTS)