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Allow explicitly specifying the font with %{Tindex}

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This commit is contained in:
Sakari Kapanen 2015-01-21 20:43:22 +02:00
parent c39c4e4d8b
commit 3b8afc6b05
2 changed files with 33 additions and 7 deletions
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6
README.pod
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@ -84,6 +84,10 @@ Set the text background color. The parameter I<color> can be I<-> or a color in
Set the text foreground color. The parameter I<color> can be I<-> or a color in one of the formats mentioned before. The special value I<-> resets the color to the default one. Set the text foreground color. The parameter I<color> can be I<-> or a color in one of the formats mentioned before. The special value I<-> resets the color to the default one.
=item B<T>I<index>
Set the font used to draw the following text. The parameter I<index> is a 1-based index of the font list supplied to bar. Any other value (for example I<->) resets bar to normal behaviour (matching the first font that can be used for that character). If the selected font can't be used to draw a character, bar will fall back to normal behaviour for that character.
=item B<U>I<color> =item B<U>I<color>
Set the text underline color. The parameter I<color> can be I<-> or a color in one of the formats mentioned before. The special value I<-> resets the color to the default one. Set the text underline color. The parameter I<color> can be I<-> or a color in one of the formats mentioned before. The special value I<-> resets the color to the default one.
@ -164,6 +168,6 @@ L<git repository|https://github.com/LemonBoy/bar>
Xinerama support was kindly contributed by Stebalien Xinerama support was kindly contributed by Stebalien
RandR support was kindly contributed by jvvv RandR support was kindly contributed by jvvv
Clickable areas support was heavily based off u-ra contribution Clickable areas support was heavily based off u-ra contribution

34
bar.c
View File

@ -77,6 +77,8 @@ static monitor_t *monhead, *montail;
static font_t *font_list[MAX_FONT_COUNT]; static font_t *font_list[MAX_FONT_COUNT];
static char *font_names[MAX_FONT_COUNT]; static char *font_names[MAX_FONT_COUNT];
static font_t *font_cache[FONT_CACHE_SIZE]; static font_t *font_cache[FONT_CACHE_SIZE];
static int font_count = 0;
static int font_index = -1;
static uint32_t attrs = 0; static uint32_t attrs = 0;
static bool dock = false; static bool dock = false;
static bool topbar = true; static bool topbar = true;
@ -320,17 +322,27 @@ area_add (char *str, const char *optend, char **end, monitor_t *mon, const int x
return true; return true;
} }
bool
font_has_glyph (font_t *font, const uint16_t c)
{
return c >= font->char_min && c <= font->char_max &&
font->width_lut[c - font->char_min].character_width != 0;
}
/* returns NULL if character cannot be printed */ /* returns NULL if character cannot be printed */
font_t * font_t *
select_drawable_font (const uint16_t c) select_drawable_font (const uint16_t c)
{ {
/* If the user has specified a font to use, try that first. */
if (font_index != -1 && font_has_glyph(font_list[font_index - 1], c))
return font_list[font_index - 1];
/* if the end is reached without finding an apropriate font, return NULL. /* if the end is reached without finding an apropriate font, return NULL.
* If the font can draw the character, return it. * If the font can draw the character, return it.
*/ */
for (int i = 0; font_list[i] != NULL; i++) { for (int i = 0; font_list[i] != NULL; i++) {
font_t *font = font_list[i]; font_t *font = font_list[i];
if (c >= font->char_min && c <= font->char_max && if (font_has_glyph(font, c))
font->width_lut[c - font->char_min].character_width != 0)
return font; return font;
} }
return NULL; return NULL;
@ -422,6 +434,13 @@ parse (char *text)
pos_x = 0; pos_x = 0;
break; break;
case 'T':
font_index = (int)strtoul(p, NULL, 10);
if (!font_index || font_index >= font_count)
font_index = -1;
p = end;
break;
/* In case of error keep parsing after the closing } */ /* In case of error keep parsing after the closing } */
default: default:
p = end; p = end;
@ -851,12 +870,15 @@ init (void)
/* Load the fonts */ /* Load the fonts */
for (int i = 0; font_names[i]; i++) { for (int i = 0; font_names[i]; i++) {
font_list[i] = font_load(font_names[i]); font_list[i] = font_load(font_names[i]);
font_count++;
if (!font_list[i]) if (!font_list[i])
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
if (!font_list[0]) if (!font_list[0]) {
font_list[0] = font_load("fixed"); font_list[0] = font_load("fixed");
font_count++;
}
if (!font_list[0]) if (!font_list[0])
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
@ -1141,7 +1163,7 @@ main (int argc, char **argv)
switch (ev->response_type & 0x7F) { switch (ev->response_type & 0x7F) {
case XCB_EXPOSE: case XCB_EXPOSE:
if (expose_ev->count == 0) if (expose_ev->count == 0)
redraw = true; redraw = true;
break; break;
case XCB_BUTTON_PRESS: case XCB_BUTTON_PRESS:
@ -1150,8 +1172,8 @@ main (int argc, char **argv)
area_t *area = area_get(press_ev->event, press_ev->event_x); area_t *area = area_get(press_ev->event, press_ev->event_x);
/* Respond to the click */ /* Respond to the click */
if (area && area->button == press_ev->detail) { if (area && area->button == press_ev->detail) {
write(STDOUT_FILENO, area->cmd, strlen(area->cmd)); write(STDOUT_FILENO, area->cmd, strlen(area->cmd));
write(STDOUT_FILENO, "\n", 1); write(STDOUT_FILENO, "\n", 1);
} }
} }
break; break;