WebCore/svg/SVGZoomAndPan.cpp

   1 /*
   2     Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
   3                   2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
   4
   5     This library is free software; you can redistribute it and/or
   6     modify it under the terms of the GNU Library General Public
   7     License as published by the Free Software Foundation; either
   8     version 2 of the License, or (at your option) any later version.
   9
  10     This library is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13     Library General Public License for more details.
  14
  15     You should have received a copy of the GNU Library General Public License
  16     along with this library; see the file COPYING.LIB.  If not, write to
  17     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18     Boston, MA 02110-1301, USA.
  19 */
  20
  21 #include "config.h"
  22
  23 #if ENABLE(SVG)
  24 #include "SVGZoomAndPan.h"
  25
  26 #include "MappedAttribute.h"
  27 #include "SVGNames.h"
  28 #include "SVGParserUtilities.h"
  29
  30 namespace WebCore {
  31
  32 SVGZoomAndPan::SVGZoomAndPan()
  33     : m_zoomAndPan(SVG_ZOOMANDPAN_MAGNIFY)
  34 {
  35 }
  36
  37 SVGZoomAndPan::~SVGZoomAndPan()
  38 {
  39 }
  40
  41 unsigned short SVGZoomAndPan::zoomAndPan() const
  42 {
  43     return m_zoomAndPan;
  44 }
  45
  46 void SVGZoomAndPan::setZoomAndPan(unsigned short zoomAndPan)
  47 {
  48     m_zoomAndPan = zoomAndPan;
  49 }
  50
  51 bool SVGZoomAndPan::parseMappedAttribute(MappedAttribute* attr)
  52 {
  53     if (attr->name() == SVGNames::zoomAndPanAttr) {
  54         const UChar* start = attr->value().characters();
  55         const UChar* end = start + attr->value().length();
  56         parseZoomAndPan(start, end);
  57         return true;
  58     }
  59
  60     return false;
  61 }
  62
  63 bool SVGZoomAndPan::isKnownAttribute(const QualifiedName& attrName)
  64 {
  65     return attrName == SVGNames::zoomAndPanAttr;
  66 }
  67
  68 static const UChar disable[] =  {'d', 'i', 's', 'a', 'b', 'l', 'e'};
  69 static const UChar magnify[] =  {'m', 'a', 'g', 'n', 'i', 'f', 'y'};
  70
  71 bool SVGZoomAndPan::parseZoomAndPan(const UChar*& start, const UChar* end)
  72 {
  73     if (skipString(start, end, disable, sizeof(disable) / sizeof(UChar)))
  74         setZoomAndPan(SVG_ZOOMANDPAN_DISABLE);
  75     else if (skipString(start, end, magnify, sizeof(magnify) / sizeof(UChar)))
  76         setZoomAndPan(SVG_ZOOMANDPAN_MAGNIFY);
  77     else
  78         return false;
  79
  80     return true;
  81 }
  82
  83 }
  84
  85 #endif // ENABLE(SVG)