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Text width

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This commit is contained in:
Bastien Dejean 2012-09-08 22:22:51 +02:00
parent 0876765573
commit dbbc408d83
2 changed files with 28 additions and 2 deletions
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2
Makefile
View file

@ -1,7 +1,7 @@
VERSION = 0.01
CC = gcc
LIBS = `pkg-config --libs xcb xcb-ewmh lua`
LIBS = `pkg-config --libs xcb xcb-ewmh lua cairo`
CFLAGS = -g -std=c99 -pedantic -Wall -Wextra
LDFLAGS = $(LIBS)

28
bsps.c
View file

@ -12,6 +12,7 @@
#include <xcb/xcb.h>
#include <xcb/xcb_event.h>
#include <xcb/xcb_ewmh.h>
#include <cairo/cairo.h>
#include "bsps.h"
#define MAX(A, B) ((A) > (B) ? (A) : (B))
@ -19,6 +20,8 @@
#define FIFO_PATH "BSPWM_FIFO"
#define NO_VALUE " "
#define NAME_SEP "\0"
#define FONT_FAMILY "sans-serif"
#define FONT_SIZE 11
typedef enum {
false,
@ -27,6 +30,8 @@ typedef enum {
char *desktop_name = NO_VALUE;
char *window_title = NO_VALUE;
char *font_family = FONT_FAMILY;
int font_size = FONT_SIZE;
char external_info[BUFSIZ] = NO_VALUE;
xcb_window_t curwin;
@ -38,14 +43,28 @@ xcb_ewmh_connection_t ewmh;
xcb_screen_t *screen;
int default_screen;
cairo_surface_t *surface;
cairo_t *cr;
bool running;
double text_width(char *s)
{
cairo_text_extents_t te;
cairo_select_font_face(cr, font_family, CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_font_size(cr, font_size);
cairo_text_extents(cr, s, &te);
return te.x_advance;
}
void setup(void)
{
dpy = xcb_connect(NULL, &default_screen);
xcb_intern_atom_cookie_t *ewmh_cookies;
ewmh_cookies = xcb_ewmh_init_atoms(dpy, &ewmh);
xcb_ewmh_init_atoms_replies(&ewmh, ewmh_cookies, NULL);
surface = cairo_image_surface_create(CAIRO_FORMAT_RGB24, 0, 0);
cr = cairo_create(surface);
fifo_path = getenv(FIFO_PATH);
mkfifo(fifo_path, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
/* http://www.outflux.net/blog/archives/2008/03/09/using-select-on-a-fifo/ */
@ -145,13 +164,18 @@ void handle_event(xcb_generic_event_t *evt)
}
}
int main(void)
int main(int argc, char *argv[])
{
fd_set descriptors;
xcb_generic_event_t *evt;
signal(SIGTERM, handle_signal);
signal(SIGINT, handle_signal);
signal(SIGHUP, handle_signal);
if (argc > 1) {
font_family = strdup(argv[1]);
if (argc > 2)
font_size = atoi(argv[2]);
}
setup();
screen = ewmh.screens[default_screen];
register_events();
@ -181,6 +205,8 @@ int main(void)
}
}
cairo_destroy(cr);
cairo_surface_destroy(surface);
close(fifo_fd);
xcb_disconnect(dpy);
return 0;