aewl: f10194d4b76d gridmenu.c

aewl

view gridmenu.c @ 1:f10194d4b76d

added gridmenu

author	Anselm R. Garbe <garbeam@wmii.de>
date	Mon, 10 Jul 2006 16:49:43 +0200
parents
children	e969f3575b7a

line source

1 /*

2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>

3 * (C)opyright MMVI Sander van Dijk <a dot h dot vandijk at gmail dot com>

4 * See LICENSE file for license details.

5 */

7 #include <ctype.h>

8 #include <stdlib.h>

9 #include <stdio.h>

10 #include <string.h>

11 #include <sys/stat.h>

12 #include <sys/wait.h>

13 #include <time.h>

14 #include <unistd.h>

15 #include <X11/Xlib.h>

16 #include <X11/cursorfont.h>

17 #include <X11/Xutil.h>

18 #include <X11/keysym.h>

20 #include <blitz.h>

21 #include <cext.h>

23 typedef struct Item Item;

25 struct Item {

26 Item *next; /* traverses all items */

27 Item *left, *right; /* traverses items matching current search pattern */

28 char *text;

29 };

31 static char *title = nil;

32 static Bool done = False;

33 static int ret = 0;

34 static char text[4096];

35 static BlitzColor selcolor;

36 static BlitzColor normcolor;

37 static Window win;

38 static XRectangle mrect;

39 static Item *allitem = nil; /* first of all items */

40 static Item *item = nil; /* first of pattern matching items */

41 static Item *sel = nil;

42 static Item *nextoff = nil;

43 static Item *prevoff = nil;

44 static Item *curroff = nil;

45 static int nitem = 0;

46 static unsigned int cmdw = 0;

47 static unsigned int twidth = 0;

48 static unsigned int cwidth = 0;

49 static Blitz blz = {0};

50 static BlitzBrush brush = {0};

51 static const int seek = 30; /* 30px */

53 static void draw_menu(void);

54 static void handle_kpress(XKeyEvent * e);

56 static char version[] = "wmiimenu - " VERSION ", (C)opyright MMIV-MMVI Anselm R. Garbe\n";

58 static void

59 usage()

60 {

61 fprintf(stderr, "%s", "usage: wmiimenu [-v] [-t <title>]\n");

62 exit(1);

63 }

65 static void

66 update_offsets()

67 {

68 unsigned int tw, w = cmdw + 2 * seek;

70 if(!curroff)

71 return;

73 for(nextoff = curroff; nextoff; nextoff=nextoff->right) {

74 tw = blitz_textwidth(brush.font, nextoff->text);

75 if(tw > mrect.width / 3)

76 tw = mrect.width / 3;

77 w += tw + mrect.height;

78 if(w > mrect.width)

79 break;

80 }

82 w = cmdw + 2 * seek;

83 for(prevoff = curroff; prevoff && prevoff->left; prevoff=prevoff->left) {

84 tw = blitz_textwidth(brush.font, prevoff->left->text);

85 if(tw > mrect.width / 3)

86 tw = mrect.width / 3;

87 w += tw + mrect.height;

88 if(w > mrect.width)

89 break;

90 }

91 }

93 static void

94 update_items(char *pattern)

95 {

96 unsigned int plen = strlen(pattern);

97 Item *i, *j;

99 if(!pattern)

100 return;

101

102 if(!title || *pattern)

103 cmdw = cwidth;

104 else

105 cmdw = twidth;

106

107 item = j = nil;

108 nitem = 0;

109

110 for(i = allitem; i; i=i->next)

111 if(!plen || !strncmp(pattern, i->text, plen)) {

112 if(!j)

113 item = i;

114 else

115 j->right = i;

116 i->left = j;

117 i->right = nil;

118 j = i;

119 nitem++;

120 }

121 for(i = allitem; i; i=i->next)

122 if(plen && strncmp(pattern, i->text, plen)

123 && strstr(i->text, pattern)) {

124 if(!j)

125 item = i;

126 else

127 j->right = i;

128 i->left = j;

129 i->right = nil;

130 j = i;

131 nitem++;

132 }

133

134 curroff = prevoff = nextoff = sel = item;

135

136 update_offsets();

137 }

138

139 /* creates brush structs for brush mode drawing */

140 static void

141 draw_menu()

142 {

143 unsigned int offx = 0;

144

145 Item *i;

146

147 brush.align = WEST;

148

149 brush.rect = mrect;

150 brush.rect.x = 0;

151 brush.rect.y = 0;

152 brush.color = normcolor;

153 brush.border = False;

154 blitz_draw_tile(&brush);

155

156 /* print command */

157 if(!title || text[0]) {

158 brush.color = normcolor;

159 cmdw = cwidth;

160 if(cmdw && item)

161 brush.rect.width = cmdw;

162 blitz_draw_label(&brush, text);

163 }

164 else {

165 cmdw = twidth;

166 brush.color = selcolor;

167 brush.rect.width = cmdw;

168 blitz_draw_label(&brush, title);

169 }

170 offx += brush.rect.width;

171

172 brush.align = CENTER;

173 if(curroff) {

174 brush.color = normcolor;

175 brush.rect.x = offx;

176 brush.rect.width = seek;

177 offx += brush.rect.width;

178 blitz_draw_label(&brush, (curroff && curroff->left) ? "<" : nil);

179

180 /* determine maximum items */

181 for(i = curroff; i != nextoff; i=i->right) {

182 brush.color = normcolor;

183 brush.border = False;

184 brush.rect.x = offx;

185 brush.rect.width = blitz_textwidth(brush.font, i->text);

186 if(brush.rect.width > mrect.width / 3)

187 brush.rect.width = mrect.width / 3;

188 brush.rect.width += mrect.height;

189 if(sel == i) {

190 brush.color = selcolor;

191 brush.border = True;

192 }

193 blitz_draw_label(&brush, i->text);

194 offx += brush.rect.width;

195 }

196

197 brush.color = normcolor;

198 brush.border = False;

199 brush.rect.x = mrect.width - seek;

200 brush.rect.width = seek;

201 blitz_draw_label(&brush, nextoff ? ">" : nil);

202 }

203 XCopyArea(blz.dpy, brush.drawable, win, brush.gc, 0, 0, mrect.width,

204 mrect.height, 0, 0);

205 XSync(blz.dpy, False);

206 }

207

208 static void

209 handle_kpress(XKeyEvent * e)

210 {

211 KeySym ksym;

212 char buf[32];

213 int num, prev_nitem;

214 unsigned int i, len = strlen(text);

215

216 buf[0] = 0;

217 num = XLookupString(e, buf, sizeof(buf), &ksym, 0);

218

219 if(IsFunctionKey(ksym) || IsKeypadKey(ksym)

220 || IsMiscFunctionKey(ksym) || IsPFKey(ksym)

221 || IsPrivateKeypadKey(ksym))

222 return;

223

224 /* first check if a control mask is omitted */

225 if(e->state & ControlMask) {

226 switch (ksym) {

227 case XK_H:

228 case XK_h:

229 ksym = XK_BackSpace;

230 break;

231 case XK_I:

232 case XK_i:

233 ksym = XK_Tab;

234 break;

235 case XK_J:

236 case XK_j:

237 ksym = XK_Return;

238 break;

239 case XK_N:

240 case XK_n:

241 ksym = XK_Right;

242 break;

243 case XK_P:

244 case XK_p:

245 ksym = XK_Left;

246 break;

247 case XK_U:

248 case XK_u:

249 text[0] = 0;

250 update_items(text);

251 draw_menu();

252 return;

253 break;

254 case XK_bracketleft:

255 ksym = XK_Escape;

256 break;

257 default: /* ignore other control sequences */

258 return;

259 break;

260 }

261 }

262 switch (ksym) {

263 case XK_Left:

264 if(!(sel && sel->left))

265 return;

266 sel=sel->left;

267 if(sel->right == curroff) {

268 curroff = prevoff;

269 update_offsets();

270 }

271 break;

272 case XK_Tab:

273 if(!sel)

274 return;

275 cext_strlcpy(text, sel->text, sizeof(text));

276 update_items(text);

277 break;

278 case XK_Right:

279 if(!(sel && sel->right))

280 return;

281 sel=sel->right;

282 if(sel == nextoff) {

283 curroff = nextoff;

284 update_offsets();

285 }

286 break;

287 case XK_Return:

288 if(e->state & ShiftMask) {

289 if(text)

290 fprintf(stdout, "%s", text);

291 }

292 else if(sel)

293 fprintf(stdout, "%s", sel->text);

294 else if(text)

295 fprintf(stdout, "%s", text);

296 fflush(stdout);

297 done = True;

298 break;

299 case XK_Escape:

300 ret = 1;

301 done = True;

302 break;

303 case XK_BackSpace:

304 if((i = len)) {

305 prev_nitem = nitem;

306 do {

307 text[--i] = 0;

308 update_items(text);

309 } while(i && nitem && prev_nitem == nitem);

310 update_items(text);

311 }

312 break;

313 default:

314 if((num == 1) && !iscntrl((int) buf[0])) {

315 buf[num] = 0;

316 if(len > 0)

317 cext_strlcat(text, buf, sizeof(text));

318 else

319 cext_strlcpy(text, buf, sizeof(text));

320 update_items(text);

321 }

322 }

323 draw_menu();

324 }

325

326 static char *

327 read_allitems()

328 {

329 static char *maxname = nil;

330 char *p, buf[1024];

331 unsigned int len = 0, max = 0;

332 Item *i, *new;

333

334 i = nil;

335 while(fgets(buf, sizeof(buf), stdin)) {

336 len = strlen(buf);

337 if (buf[len - 1] == '\n')

338 buf[len - 1] = 0;

339 p = cext_estrdup(buf);

340 if(max < len) {

341 maxname = p;

342 max = len;

343 }

344

345 new = cext_emalloc(sizeof(Item));

346 new->next = new->left = new->right = nil;

347 new->text = p;

348 if(!i)

349 allitem = new;

350 else

351 i->next = new;

352 i = new;

353 }

354

355 return maxname;

356 }

357

358 int

359 main(int argc, char *argv[])

360 {

361 int i;

362 XSetWindowAttributes wa;

363 char *maxname, *p;

364 BlitzFont font = {0};

365 GC gc;

366 Drawable pmap;

367 XEvent ev;

368

369 /* command line args */

370 for(i = 1; i < argc; i++) {

371 if (argv[i][0] == '-')

372 switch (argv[i][1]) {

373 case 'v':

374 fprintf(stdout, "%s", version);

375 exit(0);

376 break;

377 case 't':

378 if(++i < argc)

379 title = argv[i];

380 else

381 usage();

382 break;

383 default:

384 usage();

385 break;

386 }

387 else

388 usage();

389 }

390

391 blz.dpy = XOpenDisplay(0);

392 if(!blz.dpy) {

393 fprintf(stderr, "%s", "wmiimenu: cannot open dpy\n");

394 exit(1);

395 }

396 blz.screen = DefaultScreen(blz.dpy);

397 blz.root = RootWindow(blz.dpy, blz.screen);

398

399 maxname = read_allitems();

400

401 /* grab as early as possible, but after reading all items!!! */

402 while(XGrabKeyboard

403 (blz.dpy, blz.root, True, GrabModeAsync,

404 GrabModeAsync, CurrentTime) != GrabSuccess)

405 usleep(1000);

406

407 font.fontstr = getenv("WMII_FONT");

408 if (!font.fontstr)

409 font.fontstr = cext_estrdup(BLITZ_FONT);

410 blitz_loadfont(&blz, &font);

411

412 if((p = getenv("WMII_NORMCOLORS")))

413 cext_strlcpy(normcolor.colstr, p, sizeof(normcolor.colstr));

414 if(strlen(normcolor.colstr) != 23)

415 cext_strlcpy(normcolor.colstr, BLITZ_NORMCOLORS, sizeof(normcolor.colstr));

416 blitz_loadcolor(&blz, &normcolor);

417

418 if((p = getenv("WMII_SELCOLORS")))

419 cext_strlcpy(selcolor.colstr, p, sizeof(selcolor.colstr));

420 if(strlen(selcolor.colstr) != 23)

421 cext_strlcpy(selcolor.colstr, BLITZ_SELCOLORS, sizeof(selcolor.colstr));

422 blitz_loadcolor(&blz, &selcolor);

423

424 wa.override_redirect = 1;

425 wa.background_pixmap = ParentRelative;

426 wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask

427 | SubstructureRedirectMask | SubstructureNotifyMask;

428

429 mrect.width = DisplayWidth(blz.dpy, blz.screen);

430 mrect.height = font.ascent + font.descent + 4;

431 mrect.y = DisplayHeight(blz.dpy, blz.screen) - mrect.height;

432 mrect.x = 0;

433

434 win = XCreateWindow(blz.dpy, blz.root, mrect.x, mrect.y,

435 mrect.width, mrect.height, 0, DefaultDepth(blz.dpy, blz.screen),

436 CopyFromParent, DefaultVisual(blz.dpy, blz.screen),

437 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);

438 XDefineCursor(blz.dpy, win, XCreateFontCursor(blz.dpy, XC_xterm));

439 XSync(blz.dpy, False);

440

441 /* pixmap */

442 gc = XCreateGC(blz.dpy, win, 0, 0);

443 pmap = XCreatePixmap(blz.dpy, win, mrect.width, mrect.height,

444 DefaultDepth(blz.dpy, blz.screen));

445

446 XSync(blz.dpy, False);

447

448 brush.blitz = &blz;

449 brush.color = normcolor;

450 brush.drawable = pmap;

451 brush.gc = gc;

452 brush.font = &font;

453

454 if(maxname)

455 cwidth = blitz_textwidth(brush.font, maxname) + mrect.height;

456 if(cwidth > mrect.width / 3)

457 cwidth = mrect.width / 3;

458

459 if(title) {

460 twidth = blitz_textwidth(brush.font, title) + mrect.height;

461 if(twidth > mrect.width / 3)

462 twidth = mrect.width / 3;

463 }

464

465 cmdw = title ? twidth : cwidth;

466

467 text[0] = 0;

468 update_items(text);

469 XMapRaised(blz.dpy, win);

470 draw_menu();

471 XSync(blz.dpy, False);

472

473 /* main event loop */

474 while(!XNextEvent(blz.dpy, &ev)) {

475 switch (ev.type) {

476 case KeyPress:

477 handle_kpress(&ev.xkey);

478 break;

479 case Expose:

480 if(ev.xexpose.count == 0) {

481 draw_menu();

482 }

483 break;

484 default:

485 break;

486 }

487 if(done)

488 break;

489 }

490

491 XUngrabKeyboard(blz.dpy, CurrentTime);

492 XFreePixmap(blz.dpy, pmap);

493 XFreeGC(blz.dpy, gc);

494 XDestroyWindow(blz.dpy, win);

495 XCloseDisplay(blz.dpy);

496

497 return ret;

498 }