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/* colitur-mu -- an editable microui front-end for colitur.
*
* Unlike colitur-x, which only renders, this one lets you CHANGE the
* settings colitur was invoked with -- language, book-name form, numbering
* tradition, year -- and re-runs it. It never reimplements any calendar
* logic: every value on screen came out of `colitur emit --format csv`.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*/
#define _POSIX_C_SOURCE 200809L
#include <X11/Xlib.h>
#include <X11/keysym.h>
#include <X11/Xutil.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "vendor/microui.h"
#include "mu_x11.h"
#include "config.h"
#define MAXDAYS 400
#define F 16
typedef struct { char *raw; char *f[F]; } Row;
static Row rows[MAXDAYS];
static int nrows, sel;
static char status[256] = "ready";
/* --- settings the UI edits ---------------------------------------------- */
static int year = 2027;
static const char *langs[] = { "la", "en" };
static const char *books[] = { "abbr", "full" };
static const char *traditions[] = { "vulgate", "modern" };
static int lang_i, book_i, trad_i;
static int split(char *line, char **out)
{
int n = 0; char *p = line;
while (n < F) {
if (*p == '"') {
out[n++] = ++p;
while (*p && *p != '"') p++;
if (*p) *p++ = 0;
if (*p == ',') p++;
} else {
out[n++] = p;
while (*p && *p != ',') p++;
if (*p) *p++ = 0; else break;
}
}
return n;
}
/* Shell out to colitur with the current settings. This is the whole point:
the front-end owns no calendar logic, only the invocation. */
static void reload(void)
{
for (int i = 0; i < nrows; i++) free(rows[i].raw);
nrows = 0; sel = 0;
char cmd[512];
snprintf(cmd, sizeof cmd,
"colitur emit --format csv --from %d --to %d "
"--lang %s --sigla-book %s --sigla-tradition %s 2>&1",
year, year, langs[lang_i], books[book_i], traditions[trad_i]);
FILE *p = popen(cmd, "r");
if (!p) { snprintf(status, sizeof status, "cannot run colitur"); return; }
char buf[4096];
if (!fgets(buf, sizeof buf, p)) { pclose(p); snprintf(status, sizeof status, "no output"); return; }
if (strncmp(buf, "date,", 5)) { /* colitur printed an error */
buf[strcspn(buf, "\n")] = 0;
snprintf(status, sizeof status, "%.200s", buf);
pclose(p); return;
}
while (nrows < MAXDAYS && fgets(buf, sizeof buf, p)) {
buf[strcspn(buf, "\n")] = 0;
char *d = strdup(buf);
if (!d) break;
rows[nrows].raw = d;
if (split(d, rows[nrows].f) >= 12) nrows++; else free(d);
}
pclose(p);
snprintf(status, sizeof status, "%d days ยท %s", nrows, cmd + 8);
}
/* --- one frame ---------------------------------------------------------- */
/* One frame. NOTE the explicit row heights: mu_layout_row's height
argument is stored verbatim as the row size, so passing 0 lays every
control out zero pixels tall -- they are "drawn", invisibly, and the
result looks like a layout bug rather than a height bug. */
static void frame(mu_Context *ctx, int W, int H)
{
enum { RH = 24 };
if (!mu_begin_window_ex(ctx, "colitur", mu_rect(0, 0, W, H),
MU_OPT_NOTITLE | MU_OPT_NORESIZE | MU_OPT_NOCLOSE))
return;
int wy[] = { 120, 40, 40, 90, -1 };
mu_layout_row(ctx, 5, wy, RH);
mu_label(ctx, "Year");
if (mu_button(ctx, "-")) { year--; reload(); }
if (mu_button(ctx, "+")) { year++; reload(); }
char y[16]; snprintf(y, sizeof y, "%d", year);
mu_label(ctx, y);
mu_label(ctx, "");
int w4[] = { 120, 90, 90, -1 };
struct { const char *cap; const char **opts; int *idx; } sets[] = {
{ "Language", langs, &lang_i },
{ "Book names", books, &book_i },
{ "Numbering", traditions, &trad_i },
};
for (size_t r = 0; r < sizeof sets / sizeof *sets; r++) {
mu_layout_row(ctx, 4, w4, RH);
mu_label(ctx, sets[r].cap);
for (int i = 0; i < 2; i++) {
char lbl[48];
snprintf(lbl, sizeof lbl, "%s%s",
*sets[r].idx == i ? "\xe2\x97\x8f " : " ", sets[r].opts[i]);
if (mu_button_ex(ctx, lbl, 0, MU_OPT_ALIGNCENTER)) {
*sets[r].idx = i; reload();
}
}
mu_label(ctx, "");
}
int w1[] = { -1 };
mu_layout_row(ctx, 1, w1, RH);
mu_label(ctx, status);
int listh = H - 7 * RH - 90;
if (listh < 100) listh = 100;
mu_layout_row(ctx, 1, w1, listh);
mu_begin_panel(ctx, "days");
int wrow[] = { 110, 100, 330, -1 };
for (int i = 0; i < nrows; i++) {
mu_layout_row(ctx, 4, wrow, 22);
if (mu_button(ctx, rows[i].f[0])) sel = i;
mu_label(ctx, rows[i].f[9]);
mu_label(ctx, rows[i].f[6]);
char cit[160];
snprintf(cit, sizeof cit, "%s %s", rows[i].f[13], rows[i].f[14]);
mu_label(ctx, cit);
}
mu_end_panel(ctx);
if (nrows) {
char d[600];
mu_layout_row(ctx, 1, w1, RH);
snprintf(d, sizeof d, "%s %s", rows[sel].f[0], rows[sel].f[6]);
mu_label(ctx, d);
mu_layout_row(ctx, 1, w1, RH);
snprintf(d, sizeof d, "%s %s %s Epistola %s Evangelium %s",
rows[sel].f[3], rows[sel].f[9], rows[sel].f[11],
rows[sel].f[13], rows[sel].f[14]);
mu_label(ctx, d);
}
mu_end_window(ctx);
}
int main(void)
{
Display *dpy = XOpenDisplay(NULL);
if (!dpy) { fputs("cannot open display\n", stderr); return 1; }
int scr = DefaultScreen(dpy);
int W = 1000, H = 700;
Window win = XCreateSimpleWindow(dpy, RootWindow(dpy, scr), 0, 0, W, H, 0,
BlackPixel(dpy, scr), BlackPixel(dpy, scr));
XStoreName(dpy, win, "colitur-mu");
XSelectInput(dpy, win, ExposureMask | KeyPressMask | KeyReleaseMask |
ButtonPressMask | ButtonReleaseMask | PointerMotionMask |
StructureNotifyMask);
XMapWindow(dpy, win);
mux_init(dpy, win, font);
mu_Context *ctx = malloc(sizeof *ctx);
mu_init(ctx);
ctx->text_width = mux_text_width;
ctx->text_height = mux_text_height;
reload();
/* An immediate-mode UI is a RENDER LOOP, not an event handler. Drawing
only in response to an X event is wrong twice over: microui's first
frame merely creates its containers and the second is what lays them
out, and a container's scroll state settles a frame late. Drain the
queue, then always draw. */
for (int running = 1; running;) {
while (XPending(dpy)) {
XEvent ev;
XNextEvent(dpy, &ev);
switch (ev.type) {
case ConfigureNotify: W = ev.xconfigure.width; H = ev.xconfigure.height; break;
case MotionNotify: mu_input_mousemove(ctx, ev.xmotion.x, ev.xmotion.y); break;
case ButtonPress:
if (ev.xbutton.button == 4) mu_input_scroll(ctx, 0, -30);
else if (ev.xbutton.button == 5) mu_input_scroll(ctx, 0, 30);
else mu_input_mousedown(ctx, ev.xbutton.x, ev.xbutton.y, MU_MOUSE_LEFT);
break;
case ButtonRelease:
if (ev.xbutton.button < 4)
mu_input_mouseup(ctx, ev.xbutton.x, ev.xbutton.y, MU_MOUSE_LEFT);
break;
case KeyPress: {
KeySym k = XLookupKeysym(&ev.xkey, 0);
if (k == XK_q) running = 0;
if (k == XK_Down && sel < nrows - 1) sel++;
if (k == XK_Up && sel > 0) sel--;
break;
}
}
}
mu_begin(ctx);
frame(ctx, W, H);
mu_end(ctx);
mux_present(ctx, W, H, mu_color(20, 20, 20, 255));
XFlush(dpy);
nanosleep(&(struct timespec){ 0, 16000000 }, NULL); /* ~60 Hz */
}
XCloseDisplay(dpy);
return 0;
}
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