diff options
Diffstat (limited to 'gtk.c')
| -rw-r--r-- | gtk.c | 59 |
1 files changed, 56 insertions, 3 deletions
@@ -14,6 +14,11 @@ #include <gtk/gtk.h> #include <gdk/gdkkeysyms.h> +#if GTK_CHECK_VERSION(2,0,0) && !defined HAVE_SENSIBLE_ABSOLUTE_SIZE_FUNCTION +#include <gdk/gdkx.h> +#include <X11/Xlib.h> +#endif + #include "puzzles.h" /* ---------------------------------------------------------------------- @@ -153,11 +158,59 @@ void draw_text(frontend *fe, int x, int y, int fonttype, int fontsize, fe->fonts[i].type = fonttype; fe->fonts[i].size = fontsize; +#if GTK_CHECK_VERSION(2,0,0) /* - * FIXME: Really I should make at least _some_ effort to - * pick the correct font. + * Use Pango to find the closest match to the requested + * font. */ - fe->fonts[i].font = gdk_font_load("variable"); + { + PangoFontDescription *fd; + + fd = pango_font_description_new(); + /* `Monospace' and `Sans' are meta-families guaranteed to exist */ + pango_font_description_set_family(fd, fonttype == FONT_FIXED ? + "Monospace" : "Sans"); + /* + * I found some online Pango documentation which + * described a function called + * pango_font_description_set_absolute_size(), which is + * _exactly_ what I want here. Unfortunately, none of + * my local Pango installations have it (presumably + * they're too old), so I'm going to have to hack round + * it by figuring out the point size myself. This + * limits me to X and probably also breaks in later + * Pango installations, so ideally I should add another + * CHECK_VERSION type ifdef and use set_absolute_size + * where available. All very annoying. + */ +#ifdef HAVE_SENSIBLE_ABSOLUTE_SIZE_FUNCTION + pango_font_description_set_absolute_size(fd, PANGO_SCALE*fontsize); +#else + { + Display *d = GDK_DISPLAY(); + int s = DefaultScreen(d); + double resolution = + (PANGO_SCALE * 72.27 / 25.4) * + ((double) DisplayWidthMM(d, s) / DisplayWidth (d, s)); + pango_font_description_set_size(fd, resolution * fontsize); + } +#endif + fe->fonts[i].font = gdk_font_from_description(fd); + pango_font_description_free(fd); + } + + if (!fe->fonts[i].font) +#endif + /* + * In GTK 1.2, I don't know of any plausible way to + * pick a suitable font, so I'm just going to be + * tedious. + * + * This is also fallback code called if the Pango + * approach fails to find an appropriate font. + */ + fe->fonts[i].font = gdk_font_load(fonttype == FONT_FIXED ? + "fixed" : "variable"); } /* |