aewl: 09452e717bfd main.c

aewl

view main.c @ 718:09452e717bfd

applied offscreen appearance hotfix

author	Anselm R. Garbe <arg@suckless.org>
date	Wed, 24 Jan 2007 17:24:55 +0100
parents	7034ee0f48d6
children	d99be681d502

line source

1 /* (C)opyright MMVI-MMVII 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[256];

21 Bool *seltag;

22 int bh, bmw, screen, sx, sy, sw, sh, wax, way, waw, wah;

23 unsigned int master, nmaster, ntags, numlockmask;

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

25 Bool running = True;

26 Bool selscreen = 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(stack) {

44 resize(stack, True);

45 unmanage(stack);

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 numlockmask = 0;

105 modmap = XGetModifierMapping(dpy);

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

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

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

109 numlockmask = (1 << i);

110 }

111 }

112 XFreeModifiermap(modmap);

113 /* select for events */

114 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask

115 | EnterWindowMask | LeaveWindowMask;

116 wa.cursor = cursor[CurNormal];

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

118 grabkeys();

119 initrregs();

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

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

122 seltag[0] = True;

123 /* style */

124 dc.norm[ColBorder] = getcolor(NORMBORDERCOLOR);

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

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

127 dc.sel[ColBorder] = getcolor(SELBORDERCOLOR);

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

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

130 setfont(FONT);

131 /* geometry */

132 sx = sy = 0;

133 sw = DisplayWidth(dpy, screen);

134 sh = DisplayHeight(dpy, screen);

135 master = MASTER;

136 nmaster = NMASTER;

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

138 /* bar */

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

140 wa.override_redirect = 1;

141 wa.background_pixmap = ParentRelative;

142 wa.event_mask = ButtonPressMask | ExposureMask;

143 barwin = XCreateWindow(dpy, root, sx, sy, sw, bh, 0, DefaultDepth(dpy, screen),

144 CopyFromParent, DefaultVisual(dpy, screen),

145 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);

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

147 XMapRaised(dpy, barwin);

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

149 /* windowarea */

150 wax = sx;

151 way = sy + bh;

152 wah = sh - bh;

153 waw = sw;

154 /* pixmap for everything */

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

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

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

158 /* multihead support */

159 selscreen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);

160 }

161

162 /*

163 * Startup Error handler to check if another window manager

164 * is already running.

165 */

166 static int

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

168 otherwm = True;

169 return -1;

170 }

171

172 /* extern */

173

174 int

175 getproto(Window w) {

176 int i, format, protos, status;

177 unsigned long extra, res;

178 Atom *protocols, real;

179

180 protos = 0;

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

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

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

184 return protos;

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

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

187 protos |= PROTODELWIN;

188 free(protocols);

189 return protos;

190 }

191

192 void

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

194 XEvent e;

195

196 e.type = ClientMessage;

197 e.xclient.window = w;

198 e.xclient.message_type = a;

199 e.xclient.format = 32;

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

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

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

203 XSync(dpy, False);

204 }

205

206 void

207 quit(Arg *arg) {

208 readin = running = False;

209 }

210

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

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

213 * default error handler, which may call exit.

214 */

215 int

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

217 if(ee->error_code == BadWindow

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

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

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

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

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

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

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

225 return 0;

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

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

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

229 }

230

231 int

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

233 char *p;

234 int r, xfd;

235 fd_set rd;

236

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

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

239 exit(EXIT_SUCCESS);

240 }

241 else if(argc != 1)

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

243 setlocale(LC_CTYPE, "");

244 dpy = XOpenDisplay(0);

245 if(!dpy)

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

247 xfd = ConnectionNumber(dpy);

248 screen = DefaultScreen(dpy);

249 root = RootWindow(dpy, screen);

250 otherwm = False;

251 XSetErrorHandler(xerrorstart);

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

253 XSelectInput(dpy, root, SubstructureRedirectMask);

254 XSync(dpy, False);

255 if(otherwm)

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

257

258 XSync(dpy, False);

259 XSetErrorHandler(NULL);

260 xerrorxlib = XSetErrorHandler(xerror);

261 XSync(dpy, False);

262 setup();

263 drawstatus();

264 scan();

265

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

267 XSync(dpy, False);

268 procevent();

269 readin = True;

270 while(running) {

271 FD_ZERO(&rd);

272 if(readin)

273 FD_SET(STDIN_FILENO, &rd);

274 FD_SET(xfd, &rd);

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

276 if(errno == EINTR)

277 continue;

278 eprint("select failed\n");

279 }

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

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

282 case -1:

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

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

285 readin = False;

286 break;

287 case 0:

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

289 readin = False;

290 break;

291 default:

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

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

294 if(p > stext)

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

296 }

297 drawstatus();

298 }

299 if(FD_ISSET(xfd, &rd))

300 procevent();

301 }

302 cleanup();

303 XCloseDisplay(dpy);

304 return 0;

305 }