ref: 92275f3b95309a13c8e1aa136bb62e7f6ea71458
dir: /microui/demo/plan9.c/
#include <u.h> #include <libc.h> #include <draw.h> #include <mouse.h> #include <keyboard.h> #include <thread.h> #include <bio.h> #include <microui.h> void process_frame(void); void threadmain(int argc, char **argv) { Mousectl *mctl; char *s; Biobuf *snarf; Keyboardctl *kctl; Rune key; Mouse m; Alt a[] = { { nil, &m, CHANRCV }, { nil, nil, CHANRCV }, { nil, &key, CHANRCV }, { nil, nil, CHANEND}, }; int oldbuttons, b, nkey, gotevent; char text[5]; USED(argc); USED(argv); if (initdraw(nil, nil, "microui demo") < 0) sysfatal("initdraw: %r"); if ((mctl = initmouse(nil, screen)) == nil) sysfatal("initmouse: %r"); if ((kctl = initkeyboard(nil)) == nil) sysfatal("initkeyboard: %r"); a[0].c = mctl->c; a[1].c = mctl->resizec; a[2].c = kctl->c; srand(time(0)); threadsetname("microui demo"); mu_init(); mu_style.font = font; mu_style.size.y = font->height; mu_style.title_height = mu_style.size.y + 6; process_frame(); oldbuttons = 0; for (;;) { process_frame(); if (mu_render()) flushimage(display, 1); gotevent = 1; switch (alt(a)) { case 0: /* mouse */ m.xy.x -= screen->r.min.x; m.xy.y -= screen->r.min.y; mu_input_mousemove(m.xy.x, m.xy.y); if ((b = (m.buttons & 1)) != (oldbuttons & 1)) (b ? mu_input_mousedown : mu_input_mouseup)(m.xy.x, m.xy.y, MU_MOUSE_LEFT); else if ((b = (m.buttons & 2)) != (oldbuttons & 2)) (b ? mu_input_mousedown : mu_input_mouseup)(m.xy.x, m.xy.y, MU_MOUSE_MIDDLE); else if ((b = (m.buttons & 4)) != (oldbuttons & 4)) (b ? mu_input_mousedown : mu_input_mouseup)(m.xy.x, m.xy.y, MU_MOUSE_RIGHT); if (m.buttons == 5 && (snarf = Bopen("/dev/snarf", OREAD)) != nil) { if ((s = Brdstr(snarf, 0, 1)) != nil) { mu_input_text(s); free(s); } Bterm(snarf); } oldbuttons = m.buttons; break; case 1: /* resize */ getwindow(display, Refnone); break; case 2: /* keyboard */ nkey = -1; switch (key) { case Kdel: goto end; case Kshift: nkey = MU_KEY_SHIFT; break; case Kbs: nkey = MU_KEY_BACKSPACE; break; case '\n': nkey = MU_KEY_RETURN; break; case Knack: nkey = MU_KEY_NACK; break; case Kleft: nkey = MU_KEY_LEFT; break; case Kright: nkey = MU_KEY_RIGHT; break; case Kesc: mu_set_focus(0); break; default: if (key < 0xf000 || key > 0xffff) { memset(text, 0, sizeof(text)); if (runetochar(text, &key) > 0) mu_input_text(text); } break; } if (nkey >= 0) { mu_input_keydown(nkey); mu_input_keyup(nkey); } break; default: gotevent = 0; break; } if (gotevent) process_frame(); } end: threadexitsall(nil); }