asfont - text drawing functionality and handling of TTF and X11 fonts libAfterImage/asfont.h

       Sasha Vasko <sasha at aftercode dot net>
       libAfterImage/MAX_GLYPHS_PER_FONT

       Changes inter-glyph spacing of the specified font.

3rd Berkeley Distribution                      AfterStep v.2.2.12                                     asfont(3x)

       font   - Loaded ASFont structure.

       x      - new horizontal spacing value.

       y      - new vertical spacing value.

asfont - text drawing functionality and handling of TTF and X11 fonts libAfterImage/asfont.h

       - Supported types of fonts - Xlib or FreeType 2 ASF_GuessWho will enable autodetection of the font  type.
       It is attempted to be opened as FreeType font first, and if that fails - it will be opened as Xlib font.

       - Available types of 3D text to be drawn.

       - Attributes for text rendering

       draw_fancy_text()

       get_text_size()

       get_fancy_text_size();

       - Max value of glyphs per font allowed. We need that so we can detect and avoid broken fonts somehow.

       TRue on success.

       Structures :
                ASFontManager
                ASFont
                ASGlyph
                ASGlyphRange

       Functions :
                create_font_manager(), destroy_font_manager(),
                open_freetype_font(), open_X11_font(), get_asfont(),
                destroy_font(), print_asfont(), print_asglyph(),
                draw_text(),
                get_asfont_glyph_spacing(), set_asfont_glyph_spacing()

       Other libAfterImage modules :
                ascmap.h asfont.h asimage.h asvisual.h blender.h export.h
                import.h transform.h ximage.h

           typedef struct ASTextAttributes { #define ASTA_UseTabStops    (0x01<<0)
               unsigned int version ;
                               /* structure version, so we can implement future
                                * extensions without breaking binary apps */
               ASFlagType   rendition_flags ;
               ASText3DType type;
               ASCharType   char_type;
               unsigned int tab_size ;   /* tab size in chars  - defaults to 8 */
               unsigned int origin ;     /* distance from the left margin
                                          * (in pixels) */
               unsigned int *tab_stops ; /* tab stops in pixels where
                                          * left margin is 0 */
               unsigned int tab_stops_num ;

               ARGB32      fore_color ;   /* used with 3D type of Outlined */
             unsigned int width; #define ASTA_VERSION_1  1

           #define ASTA_VERSION_INTERNAL   ASTA_VERSION_1 }ASTextAttributes;

       libAfterImage/asfont/create_font_manager()

       Bool set_asfont_glyph_spacing( ASFont* font, int x, int y );

       implement proper XFontSet support, when used with I18N enabled.
       libAfterImage/asfont/get_asfont()