st/patch/xresources.c

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int
resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst)
{
char **sdst = dst;
int *idst = dst;
float *fdst = dst;
char fullname[256];
char fullclass[256];
char *type;
XrmValue ret;
snprintf(fullname, sizeof(fullname), "%s.%s",
opt_name ? opt_name : "st", name);
snprintf(fullclass, sizeof(fullclass), "%s.%s",
opt_class ? opt_class : "St", name);
fullname[sizeof(fullname) - 1] = fullclass[sizeof(fullclass) - 1] = '\0';
XrmGetResource(db, fullname, fullclass, &type, &ret);
if (ret.addr == NULL || strncmp("String", type, 64))
return 1;
switch (rtype) {
case STRING:
*sdst = ret.addr;
break;
case INTEGER:
*idst = strtoul(ret.addr, NULL, 10);
break;
case FLOAT:
*fdst = strtof(ret.addr, NULL);
break;
}
return 0;
}
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void
config_init(Display *dpy)
{
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char *resm;
XrmDatabase db;
ResourcePref *p;
XrmInitialize();
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resm = XResourceManagerString(dpy);
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if (!resm)
return;
db = XrmGetStringDatabase(resm);
for (p = resources; p < resources + LEN(resources); p++)
resource_load(db, p->name, p->type, p->dst);
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}
#if XRESOURCES_RELOAD_PATCH
void
reload_config(int sig)
{
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/* Recreate a Display object to have up to date Xresources entries */
Display *dpy;
if (!(dpy = XOpenDisplay(NULL)))
die("Can't open display\n");
config_init(dpy);
xloadcols();
/* nearly like zoomabs() */
xunloadfonts();
xloadfonts(font, 0); /* font <- config_init() */
#if FONT2_PATCH
xloadsparefonts();
#endif // FONT2_PATCH
cresize(0, 0);
redraw();
xhints();
XCloseDisplay(dpy);
/* from https://st.suckless.org/patches/xresources-with-reload-signal */
/* triggers re-render if we're visible */
ttywrite("\033[O", 3, 1);
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}
#endif // XRESOURCES_RELOAD_PATCH