src/rendering/SVGInlineTextBox.h

0001 /*
0002  * This file is part of the DOM implementation for KDE.
0003  *
0004  * Copyright (C) 2007 Rob Buis <buis@kde.org>
0005  *           (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
0006  *
0007  * This library is free software; you can redistribute it and/or
0008  * modify it under the terms of the GNU Library General Public
0009  * License as published by the Free Software Foundation; either
0010  * version 2 of the License, or (at your option) any later version.
0011  *
0012  * This library is distributed in the hope that it will be useful,
0013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
0014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0015  * Library General Public License for more details.
0016  *
0017  * You should have received a copy of the GNU Library General Public License
0018  * along with this library; see the file COPYING.LIB.  If not, write to
0019  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
0020  * Boston, MA 02110-1301, USA.
0021  *
0022  */
0023
0024 #ifndef SVGInlineTextBox_h
0025 #define SVGInlineTextBox_h
0026
0027 #if ENABLE(SVG)
0028 //#include "InlineTextBox.h"
0029 #include "rendering/render_text.h"
0030 #include "svg/graphics/SVGPaintServer.h"
0031
0032 namespace WebCore
0033 {
0034 using namespace khtml;
0035
0036 struct SVGChar;
0037 class SVGRootInlineBox;
0038 struct SVGTextDecorationInfo;
0039
0040 class SVGInlineTextBox : public InlineTextBox
0041 {
0042 public:
0043     SVGInlineTextBox(RenderObject *obj);
0044
0045     virtual int selectionTop();
0046     virtual int selectionHeight();
0047
0048     virtual int offsetForPosition(int x, bool includePartialGlyphs = true) const;
0049     virtual int positionForOffset(int offset) const;
0050
0051     /*virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty);*/
0052     virtual IntRect selectionRect(int absx, int absy, int startPos, int endPos);
0053
0054     // SVGs custom paint text method
0055     void paintCharacters(RenderObject::PaintInfo &, int tx, int ty, const SVGChar &, const UChar *chars, int length, SVGPaintServer *);
0056
0057     // SVGs custom paint selection method
0058     void paintSelection(int boxStartOffset, const SVGChar &, const UChar *, int length, RenderObject::PaintInfo &, RenderStyle *, const Font *);
0059
0060     // SVGs custom paint decoration method
0061     void paintDecoration(ETextDecoration, RenderObject::PaintInfo &, int tx, int ty, int width, const SVGChar &, const SVGTextDecorationInfo &);
0062
0063     SVGRootInlineBox *svgRootInlineBox() const;
0064
0065     // Helper functions shared with SVGRootInlineBox
0066     float calculateGlyphWidth(RenderStyle *style, int offset, int extraCharsAvailable, int &charsConsumed, String &glyphName) const;
0067     float calculateGlyphHeight(RenderStyle *, int offset, int extraCharsAvailable) const;
0068
0069     FloatRect calculateGlyphBoundaries(RenderStyle *, int offset, const SVGChar &) const;
0070     SVGChar *closestCharacterToPosition(int x, int y, int &offset) const;
0071
0072 private:
0073     friend class RenderSVGInlineText;
0074     bool svgCharacterHitsPosition(int x, int y, int &offset) const;
0075 };
0076
0077 } // namespace WebCore
0078
0079 #endif
0080 #endif // SVGInlineTextBox_h