aewl: 48038934d05d main.c

aewl

view main.c @ 444:48038934d05d

small addition to dwm.1

author	Anselm R. Garbe <arg@10kloc.org>
date	Thu, 07 Sep 2006 07:53:29 +0200
parents	052657ff2e7b
children	a2e587651c79

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 Bool maximized = False;

28 Client *clients = NULL;

29 Client *sel = 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()

42 {

43 close(STDIN_FILENO);

44 while(sel) {

45 resize(sel, True, TopLeft);

46 unmanage(sel);

47 }

48 if(dc.font.set)

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

50 else

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

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

53 XFreePixmap(dpy, dc.drawable);

54 XFreeGC(dpy, dc.gc);

55 XDestroyWindow(dpy, barwin);

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

57 XSync(dpy, False);

58 free(seltag);

59 }

61 static void

62 scan()

63 {

64 unsigned int i, num;

65 Window *wins, d1, d2;

66 XWindowAttributes wa;

68 wins = NULL;

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

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

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

72 continue;

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

74 continue;

75 if(wa.map_state == IsViewable)

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

77 }

78 }

79 if(wins)

80 XFree(wins);

81 }

83 static void

84 setup()

85 {

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);

100 /* init cursors */

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

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

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

104

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 XFree(modmap);

113

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

115 wa.cursor = cursor[CurNormal];

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

117

118 grabkeys();

119 initrregs();

120

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

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

123 seltag[0] = True;

124

125 /* style */

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

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

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

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

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

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

132 setfont(FONT);

133

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

135 sx = sy = 0;

136 sw = DisplayWidth(dpy, screen);

137 sh = DisplayHeight(dpy, screen);

138 mw = (sw * MASTERW) / 100;

139

140 bx = by = 0;

141 bw = sw;

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

143 wa.override_redirect = 1;

144 wa.background_pixmap = ParentRelative;

145 wa.event_mask = ButtonPressMask | ExposureMask;

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

147 CopyFromParent, DefaultVisual(dpy, screen),

148 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);

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

150 XMapRaised(dpy, barwin);

151

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

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

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

155

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

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

158 }

159

160 /*

161 * Startup Error handler to check if another window manager

162 * is already running.

163 */

164 static int

165 xerrorstart(Display *dsply, XErrorEvent *ee)

166 {

167 otherwm = True;

168 return -1;

169 }

170

171 /* extern */

172

173 int

174 getproto(Window w)

175 {

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 {

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 {

210 readin = running = False;

211 }

212

213 /*

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

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

216 * default error handler, which calls exit().

217 */

218 int

219 xerror(Display *dpy, XErrorEvent *ee)

220 {

221 if(ee->error_code == BadWindow

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

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

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

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

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

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

228 return 0;

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

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

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

232 }

233

234 int

235 main(int argc, char *argv[])

236 {

237 int r, xfd;

238 fd_set rd;

239

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

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

242 exit(EXIT_SUCCESS);

243 }

244 else if(argc != 1)

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

246

247 dpy = XOpenDisplay(0);

248 if(!dpy)

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

250

251 xfd = ConnectionNumber(dpy);

252 screen = DefaultScreen(dpy);

253 root = RootWindow(dpy, screen);

254

255 otherwm = False;

256 XSetErrorHandler(xerrorstart);

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

258 XSelectInput(dpy, root, SubstructureRedirectMask);

259 XSync(dpy, False);

260

261 if(otherwm)

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

263

264 XSync(dpy, False);

265 XSetErrorHandler(NULL);

266 xerrorxlib = XSetErrorHandler(xerror);

267 XSync(dpy, False);

268

269 setup();

270 drawstatus();

271 scan();

272

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

274 XSync(dpy, False);

275 procevent();

276 readin = True;

277 while(running) {

278 FD_ZERO(&rd);

279 if(readin)

280 FD_SET(STDIN_FILENO, &rd);

281 FD_SET(xfd, &rd);

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

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

284 continue;

285 if(r > 0) {

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

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

288 if(readin)

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

290 else

291 strcpy(stext, "broken pipe");

292 drawstatus();

293 }

294 }

295 else if(r < 0)

296 eprint("select failed\n");

297 procevent();

298 }

299 cleanup();

300 XCloseDisplay(dpy);

301

302 return 0;

303 }