Mercurial > dwm-meillo
annotate menu.c @ 31:386649deb651
before leaning things up
| author | Anselm R. Garbe <garbeam@wmii.de> |
|---|---|
| date | Thu, 13 Jul 2006 01:04:38 +0200 |
| parents | e8f627998d6f |
| 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 <unistd.h> | |
| 16 #include <X11/cursorfont.h> | |
| 17 #include <X11/Xutil.h> | |
| 18 #include <X11/keysym.h> | |
| 19 | |
| 20 typedef struct Item Item; | |
| 21 | |
| 22 struct Item { | |
| 23 Item *next; /* traverses all items */ | |
| 24 Item *left, *right; /* traverses items matching current search pattern */ | |
| 25 char *text; | |
| 26 }; | |
| 27 | |
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28 static Display *dpy; |
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29 static Window root; |
| 1 | 30 static Window win; |
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31 static Bool done = False; |
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32 |
| 7 | 33 static Item *allitem = NULL; /* first of all items */ |
| 34 static Item *item = NULL; /* first of pattern matching items */ | |
| 35 static Item *sel = NULL; | |
| 36 static Item *nextoff = NULL; | |
| 37 static Item *prevoff = NULL; | |
| 38 static Item *curroff = NULL; | |
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39 |
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40 static int screen, mx, my, mw, mh; |
| 7 | 41 static char *title = NULL; |
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42 static char text[4096]; |
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43 static int ret = 0; |
| 1 | 44 static int nitem = 0; |
| 45 static unsigned int cmdw = 0; | |
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46 static unsigned int tw = 0; |
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47 static unsigned int cw = 0; |
| 1 | 48 static const int seek = 30; /* 30px */ |
| 49 | |
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50 static Brush brush = {0}; |
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51 |
| 5 | 52 static void draw_menu(); |
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53 static void kpress(XKeyEvent * e); |
| 1 | 54 |
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55 static char version[] = "gridmenu - " VERSION ", (C)opyright MMVI Anselm R. Garbe\n"; |
| 1 | 56 |
| 57 static void | |
| 31 | 58 usage() { error("usage: gridmenu [-v] [-t <title>]\n"); } |
| 1 | 59 |
| 60 static void | |
| 61 update_offsets() | |
| 62 { | |
| 63 unsigned int tw, w = cmdw + 2 * seek; | |
| 64 | |
| 65 if(!curroff) | |
| 66 return; | |
| 67 | |
| 68 for(nextoff = curroff; nextoff; nextoff=nextoff->right) { | |
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69 tw = textw(&brush.font, nextoff->text); |
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70 if(tw > mw / 3) |
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71 tw = mw / 3; |
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72 w += tw + brush.font.height; |
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73 if(w > mw) |
| 1 | 74 break; |
| 75 } | |
| 76 | |
| 77 w = cmdw + 2 * seek; | |
| 78 for(prevoff = curroff; prevoff && prevoff->left; prevoff=prevoff->left) { | |
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79 tw = textw(&brush.font, prevoff->left->text); |
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80 if(tw > mw / 3) |
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81 tw = mw / 3; |
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82 w += tw + brush.font.height; |
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83 if(w > mw) |
| 1 | 84 break; |
| 85 } | |
| 86 } | |
| 87 | |
| 88 static void | |
| 89 update_items(char *pattern) | |
| 90 { | |
| 91 unsigned int plen = strlen(pattern); | |
| 92 Item *i, *j; | |
| 93 | |
| 94 if(!pattern) | |
| 95 return; | |
| 96 | |
| 97 if(!title || *pattern) | |
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98 cmdw = cw; |
| 1 | 99 else |
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100 cmdw = tw; |
| 1 | 101 |
| 7 | 102 item = j = NULL; |
| 1 | 103 nitem = 0; |
| 104 | |
| 105 for(i = allitem; i; i=i->next) | |
| 106 if(!plen || !strncmp(pattern, i->text, plen)) { | |
| 107 if(!j) | |
| 108 item = i; | |
| 109 else | |
| 110 j->right = i; | |
| 111 i->left = j; | |
| 7 | 112 i->right = NULL; |
| 1 | 113 j = i; |
| 114 nitem++; | |
| 115 } | |
| 116 for(i = allitem; i; i=i->next) | |
| 117 if(plen && strncmp(pattern, i->text, plen) | |
| 118 && strstr(i->text, pattern)) { | |
| 119 if(!j) | |
| 120 item = i; | |
| 121 else | |
| 122 j->right = i; | |
| 123 i->left = j; | |
| 7 | 124 i->right = NULL; |
| 1 | 125 j = i; |
| 126 nitem++; | |
| 127 } | |
| 128 | |
| 129 curroff = prevoff = nextoff = sel = item; | |
| 130 | |
| 131 update_offsets(); | |
| 132 } | |
| 133 | |
| 134 /* creates brush structs for brush mode drawing */ | |
| 135 static void | |
| 136 draw_menu() | |
| 137 { | |
| 138 Item *i; | |
| 139 | |
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140 brush.x = 0; |
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141 brush.y = 0; |
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142 brush.w = mw; |
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143 brush.h = mh; |
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144 draw(dpy, &brush, False, 0); |
| 1 | 145 |
| 146 /* print command */ | |
| 147 if(!title || text[0]) { | |
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148 cmdw = cw; |
| 1 | 149 if(cmdw && item) |
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150 brush.w = cmdw; |
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151 draw(dpy, &brush, False, text); |
| 1 | 152 } |
| 153 else { | |
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154 cmdw = tw; |
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155 brush.w = cmdw; |
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156 draw(dpy, &brush, False, title); |
| 1 | 157 } |
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158 brush.x += brush.w; |
| 1 | 159 |
| 160 if(curroff) { | |
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161 brush.w = seek; |
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162 draw(dpy, &brush, False, (curroff && curroff->left) ? "<" : 0); |
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163 brush.x += brush.w; |
| 1 | 164 |
| 165 /* determine maximum items */ | |
| 166 for(i = curroff; i != nextoff; i=i->right) { | |
| 167 brush.border = False; | |
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168 brush.w = textw(&brush.font, i->text); |
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169 if(brush.w > mw / 3) |
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170 brush.w = mw / 3; |
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171 brush.w += brush.font.height; |
| 1 | 172 if(sel == i) { |
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173 swap((void **)&brush.fg, (void **)&brush.bg); |
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174 draw(dpy, &brush, True, i->text); |
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175 swap((void **)&brush.fg, (void **)&brush.bg); |
| 1 | 176 } |
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177 else |
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178 draw(dpy, &brush, False, i->text); |
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179 brush.x += brush.w; |
| 1 | 180 } |
| 181 | |
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182 brush.x = mw - seek; |
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183 brush.w = seek; |
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184 draw(dpy, &brush, False, nextoff ? ">" : 0); |
| 1 | 185 } |
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186 XCopyArea(dpy, brush.drawable, win, brush.gc, 0, 0, mw, mh, 0, 0); |
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187 XFlush(dpy); |
| 1 | 188 } |
| 189 | |
| 190 static void | |
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191 kpress(XKeyEvent * e) |
| 1 | 192 { |
| 193 KeySym ksym; | |
| 194 char buf[32]; | |
| 195 int num, prev_nitem; | |
| 196 unsigned int i, len = strlen(text); | |
| 197 | |
| 198 buf[0] = 0; | |
| 199 num = XLookupString(e, buf, sizeof(buf), &ksym, 0); | |
| 200 | |
| 201 if(IsFunctionKey(ksym) || IsKeypadKey(ksym) | |
| 202 || IsMiscFunctionKey(ksym) || IsPFKey(ksym) | |
| 203 || IsPrivateKeypadKey(ksym)) | |
| 204 return; | |
| 205 | |
| 206 /* first check if a control mask is omitted */ | |
| 207 if(e->state & ControlMask) { | |
| 208 switch (ksym) { | |
| 31 | 209 default: /* ignore other control sequences */ |
| 210 return; | |
| 211 break; | |
| 1 | 212 case XK_h: |
| 213 ksym = XK_BackSpace; | |
| 214 break; | |
| 215 case XK_U: | |
| 216 case XK_u: | |
| 217 text[0] = 0; | |
| 218 update_items(text); | |
| 219 draw_menu(); | |
| 220 return; | |
| 221 break; | |
| 222 case XK_bracketleft: | |
| 223 ksym = XK_Escape; | |
| 224 break; | |
| 225 } | |
| 226 } | |
| 31 | 227 switch(ksym) { |
| 1 | 228 case XK_Left: |
| 229 if(!(sel && sel->left)) | |
| 230 return; | |
| 231 sel=sel->left; | |
| 232 if(sel->right == curroff) { | |
| 233 curroff = prevoff; | |
| 234 update_offsets(); | |
| 235 } | |
| 236 break; | |
| 237 case XK_Tab: | |
| 238 if(!sel) | |
| 239 return; | |
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240 strncpy(text, sel->text, sizeof(text)); |
| 1 | 241 update_items(text); |
| 242 break; | |
| 243 case XK_Right: | |
| 244 if(!(sel && sel->right)) | |
| 245 return; | |
| 246 sel=sel->right; | |
| 247 if(sel == nextoff) { | |
| 248 curroff = nextoff; | |
| 249 update_offsets(); | |
| 250 } | |
| 251 break; | |
| 252 case XK_Return: | |
| 253 if(e->state & ShiftMask) { | |
| 254 if(text) | |
| 255 fprintf(stdout, "%s", text); | |
| 256 } | |
| 257 else if(sel) | |
| 258 fprintf(stdout, "%s", sel->text); | |
| 259 else if(text) | |
| 260 fprintf(stdout, "%s", text); | |
| 261 fflush(stdout); | |
| 262 done = True; | |
| 263 break; | |
| 264 case XK_Escape: | |
| 265 ret = 1; | |
| 266 done = True; | |
| 267 break; | |
| 268 case XK_BackSpace: | |
| 269 if((i = len)) { | |
| 270 prev_nitem = nitem; | |
| 271 do { | |
| 272 text[--i] = 0; | |
| 273 update_items(text); | |
| 274 } while(i && nitem && prev_nitem == nitem); | |
| 275 update_items(text); | |
| 276 } | |
| 277 break; | |
| 278 default: | |
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279 if(num && !iscntrl((int) buf[0])) { |
| 1 | 280 buf[num] = 0; |
| 281 if(len > 0) | |
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282 strncat(text, buf, sizeof(text)); |
| 1 | 283 else |
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284 strncpy(text, buf, sizeof(text)); |
| 1 | 285 update_items(text); |
| 286 } | |
| 287 } | |
| 288 draw_menu(); | |
| 289 } | |
| 290 | |
| 291 static char * | |
| 292 read_allitems() | |
| 293 { | |
| 7 | 294 static char *maxname = NULL; |
| 1 | 295 char *p, buf[1024]; |
| 296 unsigned int len = 0, max = 0; | |
| 297 Item *i, *new; | |
| 298 | |
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299 i = 0; |
| 1 | 300 while(fgets(buf, sizeof(buf), stdin)) { |
| 301 len = strlen(buf); | |
| 302 if (buf[len - 1] == '\n') | |
| 303 buf[len - 1] = 0; | |
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304 p = estrdup(buf); |
| 1 | 305 if(max < len) { |
| 306 maxname = p; | |
| 307 max = len; | |
| 308 } | |
| 309 | |
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310 new = emalloc(sizeof(Item)); |
| 7 | 311 new->next = new->left = new->right = NULL; |
| 1 | 312 new->text = p; |
| 313 if(!i) | |
| 314 allitem = new; | |
| 315 else | |
| 316 i->next = new; | |
| 317 i = new; | |
| 318 } | |
| 319 | |
| 320 return maxname; | |
| 321 } | |
| 322 | |
| 323 int | |
| 324 main(int argc, char *argv[]) | |
| 325 { | |
| 326 int i; | |
| 327 XSetWindowAttributes wa; | |
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328 char *maxname; |
| 1 | 329 XEvent ev; |
| 330 | |
| 331 /* command line args */ | |
| 332 for(i = 1; i < argc; i++) { | |
| 333 if (argv[i][0] == '-') | |
| 334 switch (argv[i][1]) { | |
| 335 case 'v': | |
| 336 fprintf(stdout, "%s", version); | |
| 337 exit(0); | |
| 338 break; | |
| 339 case 't': | |
| 340 if(++i < argc) | |
| 341 title = argv[i]; | |
| 342 else | |
| 343 usage(); | |
| 344 break; | |
| 345 default: | |
| 346 usage(); | |
| 347 break; | |
| 348 } | |
| 349 else | |
| 350 usage(); | |
| 351 } | |
| 352 | |
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353 dpy = XOpenDisplay(0); |
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354 if(!dpy) |
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355 error("gridmenu: cannot open dpy\n"); |
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356 screen = DefaultScreen(dpy); |
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357 root = RootWindow(dpy, screen); |
| 1 | 358 |
| 359 maxname = read_allitems(); | |
| 360 | |
| 361 /* grab as early as possible, but after reading all items!!! */ | |
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362 while(XGrabKeyboard(dpy, root, True, GrabModeAsync, |
| 1 | 363 GrabModeAsync, CurrentTime) != GrabSuccess) |
| 364 usleep(1000); | |
| 365 | |
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366 /* style */ |
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367 loadcolors(dpy, screen, &brush, BGCOLOR, FGCOLOR, BORDERCOLOR); |
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368 loadfont(dpy, &brush.font, FONT); |
| 1 | 369 |
| 370 wa.override_redirect = 1; | |
| 371 wa.background_pixmap = ParentRelative; | |
| 5 | 372 wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask; |
| 1 | 373 |
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374 mx = my = 0; |
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375 mw = DisplayWidth(dpy, screen); |
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376 mh = texth(&brush.font); |
| 1 | 377 |
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378 win = XCreateWindow(dpy, root, mx, my, mw, mh, 0, |
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379 DefaultDepth(dpy, screen), CopyFromParent, |
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380 DefaultVisual(dpy, screen), |
| 1 | 381 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); |
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382 XDefineCursor(dpy, win, XCreateFontCursor(dpy, XC_xterm)); |
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383 XFlush(dpy); |
| 1 | 384 |
| 385 /* pixmap */ | |
| 5 | 386 brush.gc = XCreateGC(dpy, root, 0, 0); |
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387 brush.drawable = XCreatePixmap(dpy, win, mw, mh, |
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388 DefaultDepth(dpy, screen)); |
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389 XFlush(dpy); |
| 1 | 390 |
| 391 if(maxname) | |
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392 cw = textw(&brush.font, maxname) + brush.font.height; |
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393 if(cw > mw / 3) |
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394 cw = mw / 3; |
| 1 | 395 |
| 396 if(title) { | |
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397 tw = textw(&brush.font, title) + brush.font.height; |
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398 if(tw > mw / 3) |
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399 tw = mw / 3; |
| 1 | 400 } |
| 401 | |
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402 cmdw = title ? tw : cw; |
| 1 | 403 |
| 404 text[0] = 0; | |
| 405 update_items(text); | |
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406 XMapRaised(dpy, win); |
| 1 | 407 draw_menu(); |
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408 XFlush(dpy); |
| 1 | 409 |
| 410 /* main event loop */ | |
| 31 | 411 while(!done && !XNextEvent(dpy, &ev)) { |
| 1 | 412 switch (ev.type) { |
| 31 | 413 case KeyPress: |
| 414 kpress(&ev.xkey); | |
| 415 break; | |
| 416 case Expose: | |
| 417 if(ev.xexpose.count == 0) | |
| 418 draw_menu(); | |
| 419 break; | |
| 420 default: | |
| 421 break; | |
| 1 | 422 } |
| 423 } | |
| 424 | |
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425 XUngrabKeyboard(dpy, CurrentTime); |
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426 XFreePixmap(dpy, brush.drawable); |
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427 XFreeGC(dpy, brush.gc); |
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428 XDestroyWindow(dpy, win); |
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429 XCloseDisplay(dpy); |
| 1 | 430 |
| 431 return ret; | |
| 432 } |