git.distorted.org.uk Git - u/mdw/putty/blob - unix/gtkfont.h

   1 /*
   2  * Header file for gtkfont.c. Has to be separate from unix.h
   3  * because it depends on GTK data types, hence can't be included
   4  * from cross-platform code (which doesn't go near GTK).
   5  */
   6
   7 #ifndef PUTTY_GTKFONT_H
   8 #define PUTTY_GTKFONT_H
   9
  10 /*
  11  * Exports from gtkfont.c.
  12  */
  13 struct unifont_vtable;                 /* contents internal to gtkfont.c */
  14 typedef struct unifont {
  15     const struct unifont_vtable *vt;
  16     /*
  17      * `Non-static data members' of the `class', accessible to
  18      * external code.
  19      */
  20
  21     /*
  22      * public_charset is the charset used when the user asks for
  23      * `Use font encoding'.
  24      */
  25     int public_charset;
  26
  27     /*
  28      * Font dimensions needed by clients.
  29      */
  30     int width, height, ascent, descent;
  31
  32     /*
  33      * Indicates whether this font is capable of handling all glyphs
  34      * (Pango fonts can do this because Pango automatically supplies
  35      * missing glyphs from other fonts), or whether it would like a
  36      * fallback font to cope with missing glyphs.
  37      */
  38     int want_fallback;
  39 } unifont;
  40
  41 unifont *unifont_create(GtkWidget *widget, const char *name,
  42                         int wide, int bold,
  43                         int shadowoffset, int shadowalways);
  44 void unifont_destroy(unifont *font);
  45 void unifont_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
  46                        int x, int y, const wchar_t *string, int len,
  47                        int wide, int bold, int cellwidth);
  48
  49 /*
  50  * This function behaves exactly like the low-level unifont_create,
  51  * except that as well as the requested font it also allocates (if
  52  * necessary) a fallback font for filling in replacement glyphs.
  53  *
  54  * Return value is usable with unifont_destroy and unifont_draw_text
  55  * as if it were an ordinary unifont.
  56  */
  57 unifont *multifont_create(GtkWidget *widget, const char *name,
  58                           int wide, int bold,
  59                           int shadowoffset, int shadowalways);
  60
  61 /*
  62  * Unified font selector dialog. I can't be bothered to do a
  63  * proper GTK subclassing today, so this will just be an ordinary
  64  * data structure with some useful members.
  65  *
  66  * (Of course, these aren't the only members; this structure is
  67  * contained within a bigger one which holds data visible only to
  68  * the implementation.)
  69  */
  70 typedef struct unifontsel {
  71     void *user_data;                   /* settable by the user */
  72     GtkWindow *window;
  73     GtkWidget *ok_button, *cancel_button;
  74 } unifontsel;
  75
  76 unifontsel *unifontsel_new(const char *wintitle);
  77 void unifontsel_destroy(unifontsel *fontsel);
  78 void unifontsel_set_name(unifontsel *fontsel, const char *fontname);
  79 char *unifontsel_get_name(unifontsel *fontsel);
  80
  81 #endif /* PUTTY_GTKFONT_H */