dwm-meillo: 21951c0dfbae main.c

dwm-meillo

view main.c @ 634:21951c0dfbae

applied Sanders patch

author	arg@mig29
date	Wed, 13 Dec 2006 14:15:38 +0100
parents	f617c75a8405
children	107719a9ce3b

line source

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

2 * See LICENSE file for license details.

3 */

5 #include "dwm.h"

6 #include <errno.h>

7 #include <locale.h>

8 #include <stdio.h>

9 #include <stdlib.h>

10 #include <string.h>

11 #include <unistd.h>

12 #include <sys/select.h>

13 #include <X11/cursorfont.h>

14 #include <X11/keysym.h>

15 #include <X11/Xatom.h>

16 #include <X11/Xproto.h>

18 /* extern */

20 char stext[1024];

21 Bool *seltag;

22 int bx, by, bw, bh, bmw, masterd, screen, sx, sy, sw, sh, wax, way, waw, wah;

23 unsigned int master, ntags, numlockmask;

24 Atom wmatom[WMLast], netatom[NetLast];

25 Bool running = True;

26 Bool issel = True;

27 Client *clients = NULL;

28 Client *sel = NULL;

29 Client *stack = NULL;

30 Cursor cursor[CurLast];

31 Display *dpy;

32 DC dc = {0};

33 Window root, barwin;

35 /* static */

37 static int (*xerrorxlib)(Display *, XErrorEvent *);

38 static Bool otherwm, readin;

40 static void

41 cleanup(void) {

42 close(STDIN_FILENO);

43 while(sel) {

44 resize(sel, True, TopLeft);

45 unmanage(sel);

46 }

47 if(dc.font.set)

48 XFreeFontSet(dpy, dc.font.set);

49 else

50 XFreeFont(dpy, dc.font.xfont);

51 XUngrabKey(dpy, AnyKey, AnyModifier, root);

52 XFreePixmap(dpy, dc.drawable);

53 XFreeGC(dpy, dc.gc);

54 XDestroyWindow(dpy, barwin);

55 XFreeCursor(dpy, cursor[CurNormal]);

56 XFreeCursor(dpy, cursor[CurResize]);

57 XFreeCursor(dpy, cursor[CurMove]);

58 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);

59 XSync(dpy, False);

60 free(seltag);

61 }

63 static void

64 scan(void) {

65 unsigned int i, num;

66 Window *wins, d1, d2;

67 XWindowAttributes wa;

69 wins = NULL;

70 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {

71 for(i = 0; i < num; i++) {

72 if(!XGetWindowAttributes(dpy, wins[i], &wa))

73 continue;

74 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))

75 continue;

76 if(wa.map_state == IsViewable)

77 manage(wins[i], &wa);

78 }

79 }

80 if(wins)

81 XFree(wins);

82 }

84 static void

85 setup(void) {

86 int i, j;

87 unsigned int mask;

88 Window w;

89 XModifierKeymap *modmap;

90 XSetWindowAttributes wa;

92 /* init atoms */

93 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);

94 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);

95 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);

96 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);

97 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,

98 PropModeReplace, (unsigned char *) netatom, NetLast);

99 /* init cursors */

100 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);

101 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);

102 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);

103 /* init modifier map */

104 modmap = XGetModifierMapping(dpy);

105 for (i = 0; i < 8; i++) {

106 for (j = 0; j < modmap->max_keypermod; j++) {

107 if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))

108 numlockmask = (1 << i);

109 }

110 }

111 XFreeModifiermap(modmap);

112 /* select for events */

113 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask

114 | EnterWindowMask | LeaveWindowMask;

115 wa.cursor = cursor[CurNormal];

116 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);

117 grabkeys();

118 initrregs();

119 for(ntags = 0; tags[ntags]; ntags++);

120 seltag = emallocz(sizeof(Bool) * ntags);

121 seltag[0] = True;

122 /* style */

123 dc.norm[ColBG] = getcolor(NORMBGCOLOR);

124 dc.norm[ColFG] = getcolor(NORMFGCOLOR);

125 dc.sel[ColBG] = getcolor(SELBGCOLOR);

126 dc.sel[ColFG] = getcolor(SELFGCOLOR);

127 dc.status[ColBG] = getcolor(STATUSBGCOLOR);

128 dc.status[ColFG] = getcolor(STATUSFGCOLOR);

129 setfont(FONT);

130 /* geometry */

131 bmw = textw(TILESYMBOL) > textw(FLOATSYMBOL) ? textw(TILESYMBOL) : textw(FLOATSYMBOL);

132 sx = sy = 0;

133 sw = DisplayWidth(dpy, screen);

134 sh = DisplayHeight(dpy, screen);

135 master = MASTER;

136 /* bar */

137 bx = sx;

138 by = sy;

139 bw = sw;

140 dc.h = bh = dc.font.height + 2;

141 wa.override_redirect = 1;

142 wa.background_pixmap = ParentRelative;

143 wa.event_mask = ButtonPressMask | ExposureMask;

144 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),

145 CopyFromParent, DefaultVisual(dpy, screen),

146 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);

147 XDefineCursor(dpy, barwin, cursor[CurNormal]);

148 XMapRaised(dpy, barwin);

149 strcpy(stext, "dwm-"VERSION);

150 /* windowarea */

151 wax = sx;

152 way = sy + bh;

153 wah = sh - bh;

154 waw = sw;

155 /* pixmap for everything */

156 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));

157 dc.gc = XCreateGC(dpy, root, 0, 0);

158 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);

159 /* multihead support */

160 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);

161 }

162

163 /*

164 * Startup Error handler to check if another window manager

165 * is already running.

166 */

167 static int

168 xerrorstart(Display *dsply, XErrorEvent *ee) {

169 otherwm = True;

170 return -1;

171 }

172

173 /* extern */

174

175 int

176 getproto(Window w) {

177 int i, format, protos, status;

178 unsigned long extra, res;

179 Atom *protocols, real;

180

181 protos = 0;

182 status = XGetWindowProperty(dpy, w, wmatom[WMProtocols], 0L, 20L, False,

183 XA_ATOM, &real, &format, &res, &extra, (unsigned char **)&protocols);

184 if(status != Success || protocols == 0)

185 return protos;

186 for(i = 0; i < res; i++)

187 if(protocols[i] == wmatom[WMDelete])

188 protos |= PROTODELWIN;

189 free(protocols);

190 return protos;

191 }

192

193 void

194 sendevent(Window w, Atom a, long value) {

195 XEvent e;

196

197 e.type = ClientMessage;

198 e.xclient.window = w;

199 e.xclient.message_type = a;

200 e.xclient.format = 32;

201 e.xclient.data.l[0] = value;

202 e.xclient.data.l[1] = CurrentTime;

203 XSendEvent(dpy, w, False, NoEventMask, &e);

204 XSync(dpy, False);

205 }

206

207 void

208 quit(Arg *arg) {

209 readin = running = False;

210 }

211

212 /* There's no way to check accesses to destroyed windows, thus those cases are

213 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs

214 * default error handler, which may call exit.

215 */

216 int

217 xerror(Display *dpy, XErrorEvent *ee) {

218 if(ee->error_code == BadWindow

219 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)

220 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)

221 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)

222 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)

223 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)

224 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)

225 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))

226 return 0;

227 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",

228 ee->request_code, ee->error_code);

229 return xerrorxlib(dpy, ee); /* may call exit */

230 }

231

232 int

233 main(int argc, char *argv[]) {

234 char *p;

235 int r, xfd;

236 fd_set rd;

237

238 if(argc == 2 && !strncmp("-v", argv[1], 3)) {

239 fputs("dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);

240 exit(EXIT_SUCCESS);

241 }

242 else if(argc != 1)

243 eprint("usage: dwm [-v]\n");

244 setlocale(LC_CTYPE, "");

245 dpy = XOpenDisplay(0);

246 if(!dpy)

247 eprint("dwm: cannot open display\n");

248 xfd = ConnectionNumber(dpy);

249 screen = DefaultScreen(dpy);

250 root = RootWindow(dpy, screen);

251 otherwm = False;

252 XSetErrorHandler(xerrorstart);

253 /* this causes an error if some other window manager is running */

254 XSelectInput(dpy, root, SubstructureRedirectMask);

255 XSync(dpy, False);

256 if(otherwm)

257 eprint("dwm: another window manager is already running\n");

258

259 XSync(dpy, False);

260 XSetErrorHandler(NULL);

261 xerrorxlib = XSetErrorHandler(xerror);

262 XSync(dpy, False);

263 setup();

264 drawstatus();

265 scan();

266

267 /* main event loop, also reads status text from stdin */

268 XSync(dpy, False);

269 procevent();

270 readin = True;

271 while(running) {

272 FD_ZERO(&rd);

273 if(readin)

274 FD_SET(STDIN_FILENO, &rd);

275 FD_SET(xfd, &rd);

276 if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {

277 if(errno == EINTR)

278 continue;

279 eprint("select failed\n");

280 }

281 if(FD_ISSET(STDIN_FILENO, &rd)) {

282 switch(r = read(STDIN_FILENO, stext, sizeof stext - 1)) {

283 case -1:

284 strncpy(stext, strerror(errno), sizeof stext - 1);

285 stext[sizeof stext - 1] = '\0';

286 readin = False;

287 break;

288 case 0:

289 strncpy(stext, "EOF", 4);

290 readin = False;

291 break;

292 default:

293 for(stext[r] = '\0', p = stext + strlen(stext) - 1; p >= stext && *p == '\n'; *p-- = '\0');

294 for(p = stext + strlen(stext) - 1; p >= stext && *p != '\n'; --p);

295 if(p > stext)

296 strncpy(stext, p + 1, sizeof stext);

297 }

298 drawstatus();

299 }

300 if(FD_ISSET(xfd, &rd))

301 procevent();

302 }

303 cleanup();

304 XCloseDisplay(dpy);

305 return 0;

306 }