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Diffstat (limited to 'ksvg/impl/libs/libtext2path/src/Glyph.h')
| -rw-r--r-- | ksvg/impl/libs/libtext2path/src/Glyph.h | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/ksvg/impl/libs/libtext2path/src/Glyph.h b/ksvg/impl/libs/libtext2path/src/Glyph.h new file mode 100644 index 00000000..b3bd3fb5 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/Glyph.h @@ -0,0 +1,198 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <wildfox@kde.org> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifndef T2P_GLYPH_H +#define T2P_GLYPH_H + +#include <list> +#include <vector> +#include <string> + +#include "Affine.h" +#include "BezierPath.h" + +// FreeType 2 includes +#include <ft2build.h> +#include FT_FREETYPE_H + +namespace T2P +{ + class Font; + + // Represent one single glyph in cache + class Glyph + { + public: + Glyph(); + ~Glyph(); + + Affine &affine(); // Initial tracing affine + void setAffine(const Affine &affine); + + const BezierPath *bezierPath() const; // Non-modifyable bezierPath belonging to this glyph + BezierPath *modifiableBezierPath(); // ONLY USED BY GLYPHTRACER, DO NOT USE SOMEWHERE ELSE! + void setBezierPath(const BezierPath *bpath); + + FT_BBox *ftBbox(); + + private: + Affine m_affine; + FT_BBox m_ftBbox[4]; + BezierPath *m_bezierPath; + }; + + // Is created for every character which needs to + // be rendered and has to be deleted by the "client" + class GlyphAffinePair + { + public: + GlyphAffinePair(const Glyph *glyph, const Affine &affine); + ~GlyphAffinePair(); + + void setTransformatedPath(const BezierPath *path); + const BezierPath *transformatedPath() const; + + const Glyph *glyph() const; + Affine &affine(); + + private: + const Glyph *m_glyph; + const BezierPath *m_transformatedPath; + Affine m_affine; + }; + + class GlyphSet + { + public: + GlyphSet(); + ~GlyphSet(); + + std::vector<GlyphAffinePair *> &set(); + std::list<float> glyphXAdvance(); + std::list<float> glyphYAdvance(); + + unsigned int glyphCount() const; + + int width() const; + int height() const; + + int bboxX() const; + int bboxY() const; + + double xpen() const; + double ypen() const; + + int underlinePosition() const; + int underlineThickness() const; + int overlinePosition() const; + int strikeThroughPosition() const; + int pixelBaseline() const; + + private: + friend class Converter; + unsigned int m_glyphCount; // Number of glyphs in the set + + int m_bboxX, m_bboxY; // Bounding box locations (x,y) + (x + width, y + width) + int m_width, m_height; + + double m_xpen, m_ypen; // relative pen locations + + int m_underlinePosition, m_underlineThickness, m_overlinePosition, m_strikeThroughPosition, m_pixelBaseline; + + std::vector<GlyphAffinePair *> m_set; // Bezier paths in the set + + std::list<float> m_glyphXAdvance; // List of advance values needed ie. for text paths + std::list<float> m_glyphYAdvance; + }; + + class GlyphLayoutParams + { + public: + GlyphLayoutParams(); + ~GlyphLayoutParams(); + + bool tb() const; + void setTb(bool tb); + + bool useBidi() const; + void setUseBidi(bool bidi); + + double wordSpacing() const; + void setWordSpacing(double wordSpacing); + + double letterSpacing() const; + void setLetterSpacing(double letterSpacing); + + std::string baselineShift() const; + void setBaselineShift(const std::string &baseline); + + int glyphOrientationVertical() const; + void setGlyphOrientationVertical(int orient); + + int glyphOrientationHorizontal() const; + void setGlyphOrientationHorizontal(int orient); + + // textOnPath specific stuff + double textPathStartOffset() const; + void setTextPathStartOffset(double offset); + + private: + bool m_tb; // Top-To-Bottom or Bottom-To-Top ? + bool m_useBidi; // Use Bidi ? + double m_wordSpacing, m_letterSpacing; // word/character spacing + double m_textPathStartOffset; // range: 0.0 - 1.0; start offset in the path + int m_glyphOrientationVertical, m_glyphOrientationHorizontal; // Degrees... + std::string m_baseline; // baseline description, using same system as svg + }; + + class GlyphRenderParams + { + public: + GlyphRenderParams(); + ~GlyphRenderParams(); + + Font *font() const; + void setFont(Font *font); + + const GlyphLayoutParams *layout() const; + void setLayout(const GlyphLayoutParams *layout); + + unsigned int glyphIndex() const; + void setGlyphIndex(unsigned int glyphIndex); + + unsigned int lastGlyph() const; + void setLastGlyph(unsigned int lastGlyph); + + unsigned short character() const; + void setCharacter(unsigned short character); + + private: + Font *m_font; + const GlyphLayoutParams *m_layout; // Glyph layouting params + + unsigned int m_glyphIndex; // 'character' index in font + unsigned int m_lastGlyph; // Kerning + unsigned short m_character; // Unicode glyph to process + }; +} + +#endif + +// vim:ts=4:noet |