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SVGTextContentElement.h

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00001 /*
00002     Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
00003                   2004, 2005, 2006, 2008 Rob Buis <buis@kde.org>
00004 
00005     This file is part of the KDE project
00006 
00007     This library is free software; you can redistribute it and/or
00008     modify it under the terms of the GNU Library General Public
00009     License as published by the Free Software Foundation; either
00010     version 2 of the License, or (at your option) any later version.
00011 
00012     This library is distributed in the hope that it will be useful,
00013     but WITHOUT ANY WARRANTY; without even the implied warranty of
00014     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015     Library General Public License for more details.
00016 
00017     You should have received a copy of the GNU Library General Public License
00018     along with this library; see the file COPYING.LIB.  If not, write to
00019     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00020     Boston, MA 02110-1301, USA.
00021 */
00022 
00023 #ifndef SVGTextContentElement_h
00024 #define SVGTextContentElement_h
00025 
00026 #if ENABLE(SVG)
00027 #include "SVGExternalResourcesRequired.h"
00028 #include "SVGLangSpace.h"
00029 #include "SVGStyledElement.h"
00030 #include "SVGTests.h"
00031 
00032 namespace WebCore {
00033     class SVGLength;
00034 
00035     class SVGTextContentElement : public SVGStyledElement,
00036                                   public SVGTests,
00037                                   public SVGLangSpace,
00038                                   public SVGExternalResourcesRequired {
00039     public:
00040         enum SVGLengthAdjustType {
00041             LENGTHADJUST_UNKNOWN            = 0,
00042             LENGTHADJUST_SPACING            = 1,
00043             LENGTHADJUST_SPACINGANDGLYPHS   = 2
00044         };
00045 
00046         SVGTextContentElement(const QualifiedName&, Document*);
00047         virtual ~SVGTextContentElement();
00048         
00049         virtual bool isValid() const { return SVGTests::isValid(); }
00050         virtual bool isTextContent() const { return true; }
00051 
00052         long getNumberOfChars() const;
00053         float getComputedTextLength() const;
00054         float getSubStringLength(long charnum, long nchars, ExceptionCode&) const;
00055         FloatPoint getStartPositionOfChar(long charnum, ExceptionCode&) const;
00056         FloatPoint getEndPositionOfChar(long charnum, ExceptionCode&) const;
00057         FloatRect getExtentOfChar(long charnum, ExceptionCode&) const;
00058         float getRotationOfChar(long charnum, ExceptionCode&) const;
00059         long getCharNumAtPosition(const FloatPoint&) const;
00060         void selectSubString(long charnum, long nchars, ExceptionCode&) const;
00061 
00062         virtual void parseMappedAttribute(MappedAttribute*);
00063 
00064         bool isKnownAttribute(const QualifiedName&);
00065 
00066     private:
00067         ANIMATED_PROPERTY_FORWARD_DECLARATIONS(SVGExternalResourcesRequired, bool, ExternalResourcesRequired, externalResourcesRequired)
00068 
00069         ANIMATED_PROPERTY_DECLARATIONS(SVGTextContentElement, SVGLength, SVGLength, TextLength, textLength)
00070         ANIMATED_PROPERTY_DECLARATIONS(SVGTextContentElement, int, int, LengthAdjust, lengthAdjust)
00071     };
00072 
00073 } // namespace WebCore
00074 
00075 #endif // ENABLE(SVG)
00076 #endif

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