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#include <2geom/d2.h>
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// the font_instance are the template of several raster_font; they provide metrics and outlines
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// that are drawn by the raster_font, so the raster_font needs info relative to the way the
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// that are drawn by the raster_font, so the raster_font needs info relative to the way the
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// font need to be drawn. note that fontsize is a scale factor in the transform matrix
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// the various raster_font in use at a given time are held in a hash_map whose indices are the
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// styles, hence the 2 following 'classes'
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struct font_style_hash : public std::unary_function<font_style, size_t> {
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size_t operator()(font_style const &x) const;
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struct font_style_equal : public std::binary_function<font_style, font_style, bool> {
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bool operator()(font_style const &a, font_style const &b);
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class font_instance {
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// hashmap to get the raster_font for a given style
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__gnu_cxx::hash_map<font_style, raster_font*, font_style_hash, font_style_equal> loadedStyles;
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// the real source of the font
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// the real source of the font
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// depending on the rendering backend, different temporary data
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// depending on the rendering backend, different temporary data
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// that's the font's fingerprint; this particular PangoFontDescription gives the entry at which this font_instance
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// resides in the font_factory loadedFaces hash_map
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// that's the font's fingerprint; this particular PangoFontDescription gives the entry at which this font_instance
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// resides in the font_factory loadedFaces unordered_map
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PangoFontDescription* descr;
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// font_factory owning this font_instance
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// font_factory owning this font_instance
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font_factory* daddy;
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// common glyph definitions for all the rasterfonts
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bool IsOutlineFont(void); // utility
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void InstallFace(PangoFont* iFace); // utility; should reset the pFont field if loading failed
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// in case the PangoFont is a bitmap font, for example. that way, the calling function
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// will be able to check the validity of the font before installing it in loadedFaces
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// in case the PangoFont is a bitmap font, for example. that way, the calling function
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// will be able to check the validity of the font before installing it in loadedFaces
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void InitTheFace();
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int MapUnicodeChar(gunichar c); // calls the relevant unicode->glyph index function
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void LoadGlyph(int glyph_id); // the main backend-dependent function
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// loads the given glyph's info
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// nota: all coordinates returned by these functions are on a [0..1] scale; you need to multiply
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// by the fontsize to get the real sizes
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// loads the given glyph's info
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// nota: all coordinates returned by these functions are on a [0..1] scale; you need to multiply
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// by the fontsize to get the real sizes
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Path* Outline(int glyph_id, Path *copyInto=NULL);
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// queries the outline of the glyph (in livarot Path form), and copies it into copyInto instead
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// of allocating a new Path if copyInto != NULL
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// queries the outline of the glyph (in livarot Path form), and copies it into copyInto instead
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// of allocating a new Path if copyInto != NULL
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Geom::PathVector* PathVector(int glyph_id);
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// returns the 2geom-type pathvector for this glyph. no refcounting needed, it's deallocated when the font_instance dies
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double Advance(int glyph_id, bool vertical);
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// nominal advance of the font.
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// nominal advance of the font.
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bool FontMetrics(double &ascent, double &descent, double &leading);
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bool FontSlope(double &run, double &rise);
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// for generating slanted cursors for oblique fonts
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Geom::OptRect BBox(int glyph_id);
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// creates a rasterfont for the given style
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// creates a rasterfont for the given style
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raster_font* RasterFont(Geom::Matrix const &trs, double stroke_width,
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bool vertical = false, JoinType stroke_join = join_straight,
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ButtType stroke_cap = butt_straight, float miter_limit = 4.0);
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// the dashes array in iStyle is copied
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// the dashes array in iStyle is copied
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raster_font* RasterFont(font_style const &iStyle);
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// private use: tells the font_instance that the raster_font 'who' has died
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// private use: tells the font_instance that the raster_font 'who' has died
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void RemoveRasterFont(raster_font *who);
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unsigned Name(gchar *str, unsigned size);
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unsigned PSName(gchar *str, unsigned size);
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unsigned Family(gchar *str, unsigned size);
added
removed
src/libnrtype/font-instance.h
