WebCore/svg/SVGTextContentElement.h

   1 /*
   2     Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
   3                   2004, 2005, 2006, 2008 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 SVGTextContentElement_h
  22 #define SVGTextContentElement_h
  23
  24 #if ENABLE(SVG)
  25 #include "SVGExternalResourcesRequired.h"
  26 #include "SVGLangSpace.h"
  27 #include "SVGStyledElement.h"
  28 #include "SVGTests.h"
  29
  30 namespace WebCore {
  31
  32     extern char SVGTextContentElementIdentifier[];
  33
  34     class SVGLength;
  35
  36     class SVGTextContentElement : public SVGStyledElement,
  37                                   public SVGTests,
  38                                   public SVGLangSpace,
  39                                   public SVGExternalResourcesRequired {
  40     public:
  41         enum SVGLengthAdjustType {
  42             LENGTHADJUST_UNKNOWN            = 0,
  43             LENGTHADJUST_SPACING            = 1,
  44             LENGTHADJUST_SPACINGANDGLYPHS   = 2
  45         };
  46
  47         SVGTextContentElement(const QualifiedName&, Document*);
  48         virtual ~SVGTextContentElement();
  49
  50         virtual bool isValid() const { return SVGTests::isValid(); }
  51         virtual bool isTextContent() const { return true; }
  52
  53         unsigned getNumberOfChars() const;
  54         float getComputedTextLength() const;
  55         float getSubStringLength(unsigned charnum, unsigned nchars, ExceptionCode&) const;
  56         FloatPoint getStartPositionOfChar(unsigned charnum, ExceptionCode&) const;
  57         FloatPoint getEndPositionOfChar(unsigned charnum, ExceptionCode&) const;
  58         FloatRect getExtentOfChar(unsigned charnum, ExceptionCode&) const;
  59         float getRotationOfChar(unsigned charnum, ExceptionCode&) const;
  60         int getCharNumAtPosition(const FloatPoint&) const;
  61         void selectSubString(unsigned charnum, unsigned nchars, ExceptionCode&) const;
  62
  63         virtual void parseMappedAttribute(MappedAttribute*);
  64
  65         bool isKnownAttribute(const QualifiedName&);
  66
  67     private:
  68         ANIMATED_PROPERTY_DECLARATIONS(SVGTextContentElement, SVGTextContentElementIdentifier, SVGNames::textLengthAttrString, SVGLength, TextLength, textLength)
  69         ANIMATED_PROPERTY_DECLARATIONS(SVGTextContentElement, SVGTextContentElementIdentifier, SVGNames::lengthAdjustAttrString, int, LengthAdjust, lengthAdjust)
  70
  71         // SVGExternalResourcesRequired
  72         ANIMATED_PROPERTY_DECLARATIONS(SVGTextContentElement, SVGExternalResourcesRequiredIdentifier,
  73                                        SVGNames::externalResourcesRequiredAttrString, bool,
  74                                        ExternalResourcesRequired, externalResourcesRequired)
  75     };
  76
  77 } // namespace WebCore
  78
  79 #endif // ENABLE(SVG)
  80 #endif