1 /* 2 * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org> 3 * Copyright (C) 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 #ifndef SVGZoomAndPan_h 22 #define SVGZoomAndPan_h 23 24 #include "SVGNames.h" 25 #include "core/dom/QualifiedName.h" 26 #include "wtf/HashSet.h" 27 28 namespace WebCore { 29 30 enum SVGZoomAndPanType { 31 SVGZoomAndPanUnknown = 0, 32 SVGZoomAndPanDisable, 33 SVGZoomAndPanMagnify 34 }; 35 36 class SVGZoomAndPan { 37 public: 38 // Forward declare enumerations in the W3C naming scheme, for IDL generation. 39 enum { 40 SVG_ZOOMANDPAN_UNKNOWN = SVGZoomAndPanUnknown, 41 SVG_ZOOMANDPAN_DISABLE = SVGZoomAndPanDisable, 42 SVG_ZOOMANDPAN_MAGNIFY = SVGZoomAndPanMagnify 43 }; 44 45 static bool isKnownAttribute(const QualifiedName&); 46 static void addSupportedAttributes(HashSet<QualifiedName>&); 47 parseFromNumber(unsigned short number)48 static SVGZoomAndPanType parseFromNumber(unsigned short number) 49 { 50 if (!number || number > SVGZoomAndPanMagnify) 51 return SVGZoomAndPanUnknown; 52 return static_cast<SVGZoomAndPanType>(number); 53 } 54 55 static bool parseZoomAndPan(const LChar*& start, const LChar* end, SVGZoomAndPanType&); 56 static bool parseZoomAndPan(const UChar*& start, const UChar* end, SVGZoomAndPanType&); 57 58 template<class SVGElementTarget> parseAttribute(SVGElementTarget * target,const QualifiedName & name,const AtomicString & value)59 static bool parseAttribute(SVGElementTarget* target, const QualifiedName& name, const AtomicString& value) 60 { 61 ASSERT(target); 62 if (name == SVGNames::zoomAndPanAttr) { 63 SVGZoomAndPanType zoomAndPan = SVGZoomAndPanUnknown; 64 if (!value.isEmpty()) { 65 if (value.is8Bit()) { 66 const LChar* start = value.characters8(); 67 parseZoomAndPan(start, start + value.length(), zoomAndPan); 68 } else { 69 const UChar* start = value.characters16(); 70 parseZoomAndPan(start, start + value.length(), zoomAndPan); 71 } 72 } 73 target->setZoomAndPan(zoomAndPan); 74 return true; 75 } 76 77 return false; 78 } 79 zoomAndPan()80 SVGZoomAndPanType zoomAndPan() const { return SVGZoomAndPanUnknown; } 81 82 // These methods only exist to allow us to compile V8/JSSVGZoomAndPan.*. 83 // These are never called, and thus ASSERT_NOT_REACHED. 84 void ref(); 85 void deref(); 86 void setZoomAndPan(unsigned short); 87 }; 88 89 } // namespace WebCore 90 91 #endif // SVGZoomAndPan_h 92