dwm-meillo: e3179ce2b904 main.c

dwm-meillo

view main.c @ 390:e3179ce2b904

prepared 1.2

author	Anselm R. Garbe <arg@10kloc.org>
date	Wed, 30 Aug 2006 12:39:27 +0200
parents	175045ce7537
children	052657ff2e7b

line source

1 /*

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

3 * See LICENSE file for license details.

4 */

6 #include "dwm.h"

7 #include <errno.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, mw, screen, sx, sy, sw, sh;

23 unsigned int 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 Cursor cursor[CurLast];

30 Display *dpy;

31 DC dc = {0};

32 Window root, barwin;

34 /* static */

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

37 static Bool otherwm, readin;

39 static void

40 cleanup()

41 {

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 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);

56 XSync(dpy, False);

57 }

59 static void

60 scan()

61 {

62 unsigned int i, num;

63 Window *wins, d1, d2;

64 XWindowAttributes wa;

66 wins = NULL;

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

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

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

70 continue;

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

72 continue;

73 if(wa.map_state == IsViewable)

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

75 }

76 }

77 if(wins)

78 XFree(wins);

79 }

81 static void

82 setup()

83 {

84 int i, j;

85 unsigned int mask;

86 Window w;

87 XModifierKeymap *modmap;

88 XSetWindowAttributes wa;

90 /* init atoms */

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

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

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

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

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

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

98 /* init cursors */

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

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

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

102

103 modmap = XGetModifierMapping(dpy);

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

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

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

107 numlockmask = (1 << i);

108 }

109 }

110 XFree(modmap);

111

112 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask | EnterWindowMask | LeaveWindowMask;

113 wa.cursor = cursor[CurNormal];

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

115

116 grabkeys();

117 initrregs();

118

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

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

121 seltag[0] = True;

122

123 /* style */

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

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

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

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

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

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

130 setfont(FONT);

131

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

133 sx = sy = 0;

134 sw = DisplayWidth(dpy, screen);

135 sh = DisplayHeight(dpy, screen);

136 mw = (sw * MASTERW) / 100;

137

138 bx = by = 0;

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

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

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

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

153

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

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

156 }

157

158 /*

159 * Startup Error handler to check if another window manager

160 * is already running.

161 */

162 static int

163 xerrorstart(Display *dsply, XErrorEvent *ee)

164 {

165 otherwm = True;

166 return -1;

167 }

168

169 /* extern */

170

171 int

172 getproto(Window w)

173 {

174 int i, format, protos, status;

175 unsigned long extra, res;

176 Atom *protocols, real;

177

178 protos = 0;

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

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

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

182 return protos;

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

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

185 protos |= PROTODELWIN;

186 free(protocols);

187 return protos;

188 }

189

190 void

191 sendevent(Window w, Atom a, long value)

192 {

193 XEvent e;

194

195 e.type = ClientMessage;

196 e.xclient.window = w;

197 e.xclient.message_type = a;

198 e.xclient.format = 32;

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

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

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

202 XSync(dpy, False);

203 }

204

205 void

206 quit(Arg *arg)

207 {

208 readin = running = False;

209 }

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 calls exit().

215 */

216 int

217 xerror(Display *dpy, XErrorEvent *ee)

218 {

219 if(ee->error_code == BadWindow

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

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

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

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

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

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

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 {

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

245 dpy = XOpenDisplay(0);

246 if(!dpy)

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

248

249 xfd = ConnectionNumber(dpy);

250 screen = DefaultScreen(dpy);

251 root = RootWindow(dpy, screen);

252

253 otherwm = False;

254 XSetErrorHandler(xerrorstart);

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

256 XSelectInput(dpy, root, SubstructureRedirectMask);

257 XSync(dpy, False);

258

259 if(otherwm)

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

261

262 XSync(dpy, False);

263 XSetErrorHandler(NULL);

264 xerrorxlib = XSetErrorHandler(xerror);

265 XSync(dpy, False);

266

267 setup();

268 drawstatus();

269 scan();

270

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

272 XSync(dpy, False);

273 procevent();

274 readin = True;

275 while(running) {

276 FD_ZERO(&rd);

277 if(readin)

278 FD_SET(STDIN_FILENO, &rd);

279 FD_SET(xfd, &rd);

280 r = select(xfd + 1, &rd, NULL, NULL, NULL);

281 if((r == -1) && (errno == EINTR))

282 continue;

283 if(r > 0) {

284 if(readin && FD_ISSET(STDIN_FILENO, &rd)) {

285 readin = NULL != fgets(stext, sizeof(stext), stdin);

286 if(readin)

287 stext[strlen(stext) - 1] = 0;

288 else

289 strcpy(stext, "broken pipe");

290 drawstatus();

291 }

292 }

293 else if(r < 0)

294 eprint("select failed\n");

295 procevent();

296 }

297 cleanup();

298 XCloseDisplay(dpy);

299

300 return 0;

301 }