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/* xmenu
* a simple fuzzy-selection menu made with Xlib
*/
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/XKBlib.h>
#include <stdio.h>
#include "dynarr.h"
typedef DYNARR(char) DynStr;
int
umod(int a, int b)
{
if (a < 0) {
return b + a % b;
} else {
return a % b;
}
}
int
main(int argc, char **argv)
{
Display *dsp = XOpenDisplay("");
int scr = DefaultScreen(dsp);
unsigned long fg = BlackPixel(dsp, scr);
unsigned long bg = WhitePixel(dsp, scr);
XSizeHints szhint = { 0 };
szhint.width = 350;
szhint.height = 250;
szhint.flags = PSize;
Window win = XCreateSimpleWindow(
dsp,
DefaultRootWindow(dsp),
szhint.x, szhint.y,
szhint.width, szhint.height,
5 /* border width */,
fg, bg);
char title[] = "xmenu";
XSetStandardProperties(dsp, win, title, title,
None, argv, argc, &szhint);
GC gc = XCreateGC(dsp, win, 0, 0);
XSetBackground(dsp, gc, bg);
XSetForeground(dsp, gc, fg);
XSelectInput(dsp, win, ButtonPressMask | KeyPressMask | ExposureMask);
XMapRaised(dsp, win);
Font freg = XLoadFont(dsp, "-*-new century schoolbook-medium-r-*-*-24-*-*-*-*-*-*-*");
Font fital = XLoadFont(dsp, "-*-new century schoolbook-medium-i-*-*-24-*-*-*-*-*-*-*");
/* see Xft(3) */
DynStr input = { 0 };
int seli = 0;
const char *optv[] = { "she shit on my thang until i vomit", "what", "who are you", "why are you", "where'd you come from" };
int optc = sizeof optv / sizeof *optv;
for (;;) {
XEvent ev;
KeySym key;
XNextEvent(dsp, &ev);
switch (ev.type) {
case KeyPress: {
char kbuf[32];
KeyCode kc = ev.xkey.keycode;
KeySym sym = XkbKeycodeToKeysym(dsp, kc, 0,
!!(ev.xkey.state & ShiftMask));
int rune = ksym_to_unicode(sym);
switch (sym) {
case XK_Escape:
goto done;
case XK_BackSpace:
if (input.n > 0) input.n--;
goto draw;
case XK_Return:
input.n = 0;
goto draw;
case XK_Down:
seli = umod(seli + 1, optc);
goto draw;
case XK_Up:
seli = umod(seli - 1, optc);
goto draw;
default: {
int n = XLookupString(&ev.xkey, kbuf, 10, &key, 0);
if (!n) break;
DA_PUSH_MULT(&input, kbuf, n);
seli = 0;
goto draw;
} break;
}
} break;
case Expose: {
draw:;
XWindowAttributes attr;
XClearWindow(dsp, win);
XGetWindowAttributes(dsp, win, &attr);
//XGetSizeHints(dsp, win, &szhint);
XSetFont(dsp, gc, fital);
int w = XTextWidth(XQueryFont(dsp, XGContextFromGC(gc)), input.v, input.n);
DA_PUSH(&input, '_');
XDrawString(dsp, win, gc, 16, 24, input.v, input.n);
input.n--;
XSetFont(dsp, gc, freg);
for (int i = 0; i < optc; i++) {
if (i == seli) {
int w = XTextWidth(XQueryFont(dsp,
XGContextFromGC(gc)),
optv[i], strlen(optv[i]));
XFillRectangle(dsp, win, gc,
16, 28 + i * 24 + 8,
w, 24);
XSetForeground(dsp, gc, bg);
XDrawString(dsp, win, gc,
16, 48 + i * 24 + 8,
optv[i], strlen(optv[i]));
XSetForeground(dsp, gc, fg);
} else {
XDrawString(dsp, win, gc,
16, 48 + i * 24 + 8,
optv[i], strlen(optv[i]));
}
}
} break;
/* TODO: figure out quit events */
}
}
done: ;
XUnloadFont(dsp, freg);
XUnloadFont(dsp, fital);
XFreeGC(dsp, gc);
XDestroyWindow(dsp, win);
XCloseDisplay(dsp);
return 0;
}
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