Mercurial > aewl
annotate gridmenu.c @ 3:e969f3575b7a
several new changes, made gridmenu working
| author | Anselm R. Garbe <garbeam@wmii.de> |
|---|---|
| date | Mon, 10 Jul 2006 19:46:24 +0200 |
| parents | f10194d4b76d |
| children |
| rev | line source |
|---|---|
| 1 | 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 */ | |
| 6 | |
|
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7 #include "config.h" |
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8 #include "draw.h" |
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9 #include "util.h" |
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10 |
| 1 | 11 #include <ctype.h> |
| 12 #include <stdlib.h> | |
| 13 #include <stdio.h> | |
| 14 #include <string.h> | |
| 15 #include <sys/stat.h> | |
| 16 #include <sys/wait.h> | |
| 17 #include <time.h> | |
| 18 #include <unistd.h> | |
| 19 #include <X11/cursorfont.h> | |
| 20 #include <X11/Xutil.h> | |
| 21 #include <X11/keysym.h> | |
| 22 | |
| 23 typedef struct Item Item; | |
| 24 | |
| 25 struct Item { | |
| 26 Item *next; /* traverses all items */ | |
| 27 Item *left, *right; /* traverses items matching current search pattern */ | |
| 28 char *text; | |
| 29 }; | |
| 30 | |
|
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31 static Display *dpy; |
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32 static Window root; |
| 1 | 33 static Window win; |
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34 static XRectangle rect; |
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35 static Bool done = False; |
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36 |
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37 static Item *allitem = 0; /* first of all items */ |
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38 static Item *item = 0; /* first of pattern matching items */ |
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39 static Item *sel = 0; |
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40 static Item *nextoff = 0; |
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41 static Item *prevoff = 0; |
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42 static Item *curroff = 0; |
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43 |
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44 static int screen; |
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45 static char *title = 0; |
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46 static char text[4096]; |
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47 static int ret = 0; |
| 1 | 48 static int nitem = 0; |
| 49 static unsigned int cmdw = 0; | |
| 50 static unsigned int twidth = 0; | |
| 51 static unsigned int cwidth = 0; | |
| 52 static const int seek = 30; /* 30px */ | |
| 53 | |
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54 static Brush brush = {0}; |
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55 |
| 1 | 56 static void draw_menu(void); |
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57 static void kpress(XKeyEvent * e); |
| 1 | 58 |
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59 static char version[] = "gridmenu - " VERSION ", (C)opyright MMVI Anselm R. Garbe\n"; |
| 1 | 60 |
| 61 static void | |
| 62 usage() | |
| 63 { | |
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64 fprintf(stderr, "%s", "usage: gridmenu [-v] [-t <title>]\n"); |
| 1 | 65 exit(1); |
| 66 } | |
| 67 | |
| 68 static void | |
| 69 update_offsets() | |
| 70 { | |
| 71 unsigned int tw, w = cmdw + 2 * seek; | |
| 72 | |
| 73 if(!curroff) | |
| 74 return; | |
| 75 | |
| 76 for(nextoff = curroff; nextoff; nextoff=nextoff->right) { | |
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77 tw = textwidth(&brush.font, nextoff->text); |
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78 if(tw > rect.width / 3) |
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79 tw = rect.width / 3; |
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80 w += tw + brush.font.height; |
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81 if(w > rect.width) |
| 1 | 82 break; |
| 83 } | |
| 84 | |
| 85 w = cmdw + 2 * seek; | |
| 86 for(prevoff = curroff; prevoff && prevoff->left; prevoff=prevoff->left) { | |
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87 tw = textwidth(&brush.font, prevoff->left->text); |
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88 if(tw > rect.width / 3) |
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89 tw = rect.width / 3; |
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90 w += tw + brush.font.height; |
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91 if(w > rect.width) |
| 1 | 92 break; |
| 93 } | |
| 94 } | |
| 95 | |
| 96 static void | |
| 97 update_items(char *pattern) | |
| 98 { | |
| 99 unsigned int plen = strlen(pattern); | |
| 100 Item *i, *j; | |
| 101 | |
| 102 if(!pattern) | |
| 103 return; | |
| 104 | |
| 105 if(!title || *pattern) | |
| 106 cmdw = cwidth; | |
| 107 else | |
| 108 cmdw = twidth; | |
| 109 | |
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110 item = j = 0; |
| 1 | 111 nitem = 0; |
| 112 | |
| 113 for(i = allitem; i; i=i->next) | |
| 114 if(!plen || !strncmp(pattern, i->text, plen)) { | |
| 115 if(!j) | |
| 116 item = i; | |
| 117 else | |
| 118 j->right = i; | |
| 119 i->left = j; | |
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120 i->right = 0; |
| 1 | 121 j = i; |
| 122 nitem++; | |
| 123 } | |
| 124 for(i = allitem; i; i=i->next) | |
| 125 if(plen && strncmp(pattern, i->text, plen) | |
| 126 && strstr(i->text, pattern)) { | |
| 127 if(!j) | |
| 128 item = i; | |
| 129 else | |
| 130 j->right = i; | |
| 131 i->left = j; | |
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132 i->right = 0; |
| 1 | 133 j = i; |
| 134 nitem++; | |
| 135 } | |
| 136 | |
| 137 curroff = prevoff = nextoff = sel = item; | |
| 138 | |
| 139 update_offsets(); | |
| 140 } | |
| 141 | |
| 142 /* creates brush structs for brush mode drawing */ | |
| 143 static void | |
| 144 draw_menu() | |
| 145 { | |
| 146 unsigned int offx = 0; | |
| 147 Item *i; | |
| 148 | |
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149 brush.rect = rect; |
| 1 | 150 brush.rect.x = 0; |
| 151 brush.rect.y = 0; | |
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152 draw(dpy, &brush, False, 0); |
| 1 | 153 |
| 154 /* print command */ | |
| 155 if(!title || text[0]) { | |
| 156 cmdw = cwidth; | |
| 157 if(cmdw && item) | |
| 158 brush.rect.width = cmdw; | |
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159 draw(dpy, &brush, False, text); |
| 1 | 160 } |
| 161 else { | |
| 162 cmdw = twidth; | |
| 163 brush.rect.width = cmdw; | |
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164 draw(dpy, &brush, False, title); |
| 1 | 165 } |
| 166 offx += brush.rect.width; | |
| 167 | |
| 168 if(curroff) { | |
| 169 brush.rect.x = offx; | |
| 170 brush.rect.width = seek; | |
| 171 offx += brush.rect.width; | |
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172 draw(dpy, &brush, False, (curroff && curroff->left) ? "<" : 0); |
| 1 | 173 |
| 174 /* determine maximum items */ | |
| 175 for(i = curroff; i != nextoff; i=i->right) { | |
| 176 brush.border = False; | |
| 177 brush.rect.x = offx; | |
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178 brush.rect.width = textwidth(&brush.font, i->text); |
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179 if(brush.rect.width > rect.width / 3) |
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180 brush.rect.width = rect.width / 3; |
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181 brush.rect.width += brush.font.height; |
| 1 | 182 if(sel == i) { |
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183 swap((void **)&brush.fg, (void **)&brush.bg); |
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184 draw(dpy, &brush, True, i->text); |
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185 swap((void **)&brush.fg, (void **)&brush.bg); |
| 1 | 186 } |
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187 else |
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188 draw(dpy, &brush, False, i->text); |
| 1 | 189 offx += brush.rect.width; |
| 190 } | |
| 191 | |
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192 brush.rect.x = rect.width - seek; |
| 1 | 193 brush.rect.width = seek; |
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194 draw(dpy, &brush, False, nextoff ? ">" : 0); |
| 1 | 195 } |
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196 XCopyArea(dpy, brush.drawable, win, brush.gc, 0, 0, rect.width, |
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197 rect.height, 0, 0); |
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198 XFlush(dpy); |
| 1 | 199 } |
| 200 | |
| 201 static void | |
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202 kpress(XKeyEvent * e) |
| 1 | 203 { |
| 204 KeySym ksym; | |
| 205 char buf[32]; | |
| 206 int num, prev_nitem; | |
| 207 unsigned int i, len = strlen(text); | |
| 208 | |
| 209 buf[0] = 0; | |
| 210 num = XLookupString(e, buf, sizeof(buf), &ksym, 0); | |
| 211 | |
| 212 if(IsFunctionKey(ksym) || IsKeypadKey(ksym) | |
| 213 || IsMiscFunctionKey(ksym) || IsPFKey(ksym) | |
| 214 || IsPrivateKeypadKey(ksym)) | |
| 215 return; | |
| 216 | |
| 217 /* first check if a control mask is omitted */ | |
| 218 if(e->state & ControlMask) { | |
| 219 switch (ksym) { | |
| 220 case XK_H: | |
| 221 case XK_h: | |
| 222 ksym = XK_BackSpace; | |
| 223 break; | |
| 224 case XK_I: | |
| 225 case XK_i: | |
| 226 ksym = XK_Tab; | |
| 227 break; | |
| 228 case XK_J: | |
| 229 case XK_j: | |
| 230 ksym = XK_Return; | |
| 231 break; | |
| 232 case XK_N: | |
| 233 case XK_n: | |
| 234 ksym = XK_Right; | |
| 235 break; | |
| 236 case XK_P: | |
| 237 case XK_p: | |
| 238 ksym = XK_Left; | |
| 239 break; | |
| 240 case XK_U: | |
| 241 case XK_u: | |
| 242 text[0] = 0; | |
| 243 update_items(text); | |
| 244 draw_menu(); | |
| 245 return; | |
| 246 break; | |
| 247 case XK_bracketleft: | |
| 248 ksym = XK_Escape; | |
| 249 break; | |
| 250 default: /* ignore other control sequences */ | |
| 251 return; | |
| 252 break; | |
| 253 } | |
| 254 } | |
| 255 switch (ksym) { | |
| 256 case XK_Left: | |
| 257 if(!(sel && sel->left)) | |
| 258 return; | |
| 259 sel=sel->left; | |
| 260 if(sel->right == curroff) { | |
| 261 curroff = prevoff; | |
| 262 update_offsets(); | |
| 263 } | |
| 264 break; | |
| 265 case XK_Tab: | |
| 266 if(!sel) | |
| 267 return; | |
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268 strncpy(text, sel->text, sizeof(text)); |
| 1 | 269 update_items(text); |
| 270 break; | |
| 271 case XK_Right: | |
| 272 if(!(sel && sel->right)) | |
| 273 return; | |
| 274 sel=sel->right; | |
| 275 if(sel == nextoff) { | |
| 276 curroff = nextoff; | |
| 277 update_offsets(); | |
| 278 } | |
| 279 break; | |
| 280 case XK_Return: | |
| 281 if(e->state & ShiftMask) { | |
| 282 if(text) | |
| 283 fprintf(stdout, "%s", text); | |
| 284 } | |
| 285 else if(sel) | |
| 286 fprintf(stdout, "%s", sel->text); | |
| 287 else if(text) | |
| 288 fprintf(stdout, "%s", text); | |
| 289 fflush(stdout); | |
| 290 done = True; | |
| 291 break; | |
| 292 case XK_Escape: | |
| 293 ret = 1; | |
| 294 done = True; | |
| 295 break; | |
| 296 case XK_BackSpace: | |
| 297 if((i = len)) { | |
| 298 prev_nitem = nitem; | |
| 299 do { | |
| 300 text[--i] = 0; | |
| 301 update_items(text); | |
| 302 } while(i && nitem && prev_nitem == nitem); | |
| 303 update_items(text); | |
| 304 } | |
| 305 break; | |
| 306 default: | |
| 307 if((num == 1) && !iscntrl((int) buf[0])) { | |
| 308 buf[num] = 0; | |
| 309 if(len > 0) | |
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310 strncat(text, buf, sizeof(text)); |
| 1 | 311 else |
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312 strncpy(text, buf, sizeof(text)); |
| 1 | 313 update_items(text); |
| 314 } | |
| 315 } | |
| 316 draw_menu(); | |
| 317 } | |
| 318 | |
| 319 static char * | |
| 320 read_allitems() | |
| 321 { | |
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322 static char *maxname = 0; |
| 1 | 323 char *p, buf[1024]; |
| 324 unsigned int len = 0, max = 0; | |
| 325 Item *i, *new; | |
| 326 | |
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327 i = 0; |
| 1 | 328 while(fgets(buf, sizeof(buf), stdin)) { |
| 329 len = strlen(buf); | |
| 330 if (buf[len - 1] == '\n') | |
| 331 buf[len - 1] = 0; | |
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332 p = estrdup(buf); |
| 1 | 333 if(max < len) { |
| 334 maxname = p; | |
| 335 max = len; | |
| 336 } | |
| 337 | |
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338 new = emalloc(sizeof(Item)); |
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339 new->next = new->left = new->right = 0; |
| 1 | 340 new->text = p; |
| 341 if(!i) | |
| 342 allitem = new; | |
| 343 else | |
| 344 i->next = new; | |
| 345 i = new; | |
| 346 } | |
| 347 | |
| 348 return maxname; | |
| 349 } | |
| 350 | |
| 351 int | |
| 352 main(int argc, char *argv[]) | |
| 353 { | |
| 354 int i; | |
| 355 XSetWindowAttributes wa; | |
|
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356 char *maxname; |
| 1 | 357 XEvent ev; |
| 358 | |
| 359 /* command line args */ | |
| 360 for(i = 1; i < argc; i++) { | |
| 361 if (argv[i][0] == '-') | |
| 362 switch (argv[i][1]) { | |
| 363 case 'v': | |
| 364 fprintf(stdout, "%s", version); | |
| 365 exit(0); | |
| 366 break; | |
| 367 case 't': | |
| 368 if(++i < argc) | |
| 369 title = argv[i]; | |
| 370 else | |
| 371 usage(); | |
| 372 break; | |
| 373 default: | |
| 374 usage(); | |
| 375 break; | |
| 376 } | |
| 377 else | |
| 378 usage(); | |
| 379 } | |
| 380 | |
|
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381 dpy = XOpenDisplay(0); |
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382 if(!dpy) |
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383 error("gridmenu: cannot open dpy\n"); |
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384 screen = DefaultScreen(dpy); |
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385 root = RootWindow(dpy, screen); |
| 1 | 386 |
| 387 maxname = read_allitems(); | |
| 388 | |
| 389 /* grab as early as possible, but after reading all items!!! */ | |
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390 while(XGrabKeyboard(dpy, root, True, GrabModeAsync, |
| 1 | 391 GrabModeAsync, CurrentTime) != GrabSuccess) |
| 392 usleep(1000); | |
| 393 | |
|
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394 /* style */ |
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395 loadcolors(dpy, screen, &brush, BGCOLOR, FGCOLOR, BORDERCOLOR); |
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396 loadfont(dpy, &brush.font, FONT); |
| 1 | 397 |
| 398 wa.override_redirect = 1; | |
| 399 wa.background_pixmap = ParentRelative; | |
| 400 wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask | |
| 401 | SubstructureRedirectMask | SubstructureNotifyMask; | |
| 402 | |
|
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403 rect.width = DisplayWidth(dpy, screen); |
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404 rect.height = brush.font.height + 4; |
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405 rect.y = DisplayHeight(dpy, screen) - rect.height; |
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406 rect.x = 0; |
| 1 | 407 |
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408 win = XCreateWindow(dpy, root, rect.x, rect.y, |
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409 rect.width, rect.height, 0, DefaultDepth(dpy, screen), |
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410 CopyFromParent, DefaultVisual(dpy, screen), |
| 1 | 411 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); |
|
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412 XDefineCursor(dpy, win, XCreateFontCursor(dpy, XC_xterm)); |
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413 XFlush(dpy); |
| 1 | 414 |
| 415 /* pixmap */ | |
|
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416 brush.gc = XCreateGC(dpy, win, 0, 0); |
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417 brush.drawable = XCreatePixmap(dpy, win, rect.width, rect.height, |
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418 DefaultDepth(dpy, screen)); |
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419 XFlush(dpy); |
| 1 | 420 |
| 421 if(maxname) | |
|
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422 cwidth = textwidth(&brush.font, maxname) + brush.font.height; |
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423 if(cwidth > rect.width / 3) |
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424 cwidth = rect.width / 3; |
| 1 | 425 |
| 426 if(title) { | |
|
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427 twidth = textwidth(&brush.font, title) + brush.font.height; |
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428 if(twidth > rect.width / 3) |
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429 twidth = rect.width / 3; |
| 1 | 430 } |
| 431 | |
| 432 cmdw = title ? twidth : cwidth; | |
| 433 | |
| 434 text[0] = 0; | |
| 435 update_items(text); | |
|
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436 XMapRaised(dpy, win); |
| 1 | 437 draw_menu(); |
|
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438 XFlush(dpy); |
| 1 | 439 |
| 440 /* main event loop */ | |
|
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441 while(!XNextEvent(dpy, &ev)) { |
| 1 | 442 switch (ev.type) { |
| 443 case KeyPress: | |
|
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444 kpress(&ev.xkey); |
| 1 | 445 break; |
| 446 case Expose: | |
| 447 if(ev.xexpose.count == 0) { | |
| 448 draw_menu(); | |
| 449 } | |
| 450 break; | |
| 451 default: | |
| 452 break; | |
| 453 } | |
| 454 if(done) | |
| 455 break; | |
| 456 } | |
| 457 | |
|
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458 XUngrabKeyboard(dpy, CurrentTime); |
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459 XFreePixmap(dpy, brush.drawable); |
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460 XFreeGC(dpy, brush.gc); |
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461 XDestroyWindow(dpy, win); |
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462 XCloseDisplay(dpy); |
| 1 | 463 |
| 464 return ret; | |
| 465 } |