aewl: 9d23330a5268 main.c

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view main.c @ 461:9d23330a5268

removed a bunch of lines through making function signatures more consistent with my style ( { does not belong to a new line, if function args are single-lined)

author	Anselm R. Garbe <arg@10kloc.org>
date	Tue, 12 Sep 2006 10:57:28 +0200
parents	81fcd7ddafee
children	2d8af0d7920d

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 Client *stack = NULL;

31 Cursor cursor[CurLast];

32 Display *dpy;

33 DC dc = {0};

34 Window root, barwin;

36 /* static */

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

39 static Bool otherwm, readin;

41 static void

42 cleanup() {

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 unsigned int i, num;

64 Window *wins, d1, d2;

65 XWindowAttributes wa;

67 wins = NULL;

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

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

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

71 continue;

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

73 continue;

74 if(wa.map_state == IsViewable)

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

76 }

77 }

78 if(wins)

79 XFree(wins);

80 }

82 static void

83 setup() {

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

113 | EnterWindowMask | LeaveWindowMask;

114 wa.cursor = cursor[CurNormal];

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

116

117 grabkeys();

118 initrregs();

119

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

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

122 seltag[0] = True;

123

124 /* style */

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

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

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

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

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

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

131 setfont(FONT);

132

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

134 sx = sy = 0;

135 sw = DisplayWidth(dpy, screen);

136 sh = DisplayHeight(dpy, screen);

137 mw = (sw * MASTERW) / 100;

138

139 bx = by = 0;

140 bw = sw;

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

142 wa.override_redirect = 1;

143 wa.background_pixmap = ParentRelative;

144 wa.event_mask = ButtonPressMask | ExposureMask;

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

146 CopyFromParent, DefaultVisual(dpy, screen),

147 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);

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

149 XMapRaised(dpy, barwin);

150

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

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

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

154

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

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

157 }

158

159 /*

160 * Startup Error handler to check if another window manager

161 * is already running.

162 */

163 static int

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

165 otherwm = True;

166 return -1;

167 }

168

169 /* extern */

170

171 int

172 getproto(Window w) {

173 int i, format, protos, status;

174 unsigned long extra, res;

175 Atom *protocols, real;

176

177 protos = 0;

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

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

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

181 return protos;

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

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

184 protos |= PROTODELWIN;

185 free(protocols);

186 return protos;

187 }

188

189 void

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

191 XEvent e;

192

193 e.type = ClientMessage;

194 e.xclient.window = w;

195 e.xclient.message_type = a;

196 e.xclient.format = 32;

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

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

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

200 XSync(dpy, False);

201 }

202

203 void

204 quit(Arg *arg) {

205 readin = running = False;

206 }

207

208 /*

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

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

211 * default error handler, which may call exit.

212 */

213 int

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

215 if(ee->error_code == BadWindow

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

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

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

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

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

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

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

223 return 0;

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

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

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

227 }

228

229 int

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

231 int r, xfd;

232 fd_set rd;

233

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

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

236 exit(EXIT_SUCCESS);

237 }

238 else if(argc != 1)

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

240

241 dpy = XOpenDisplay(0);

242 if(!dpy)

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

244

245 xfd = ConnectionNumber(dpy);

246 screen = DefaultScreen(dpy);

247 root = RootWindow(dpy, screen);

248

249 otherwm = False;

250 XSetErrorHandler(xerrorstart);

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

252 XSelectInput(dpy, root, SubstructureRedirectMask);

253 XSync(dpy, False);

254

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

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

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

278 continue;

279 if(r > 0) {

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

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

282 if(readin)

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

284 else

285 strcpy(stext, "broken pipe");

286 drawstatus();

287 }

288 }

289 else if(r < 0)

290 eprint("select failed\n");

291 procevent();

292 }

293 cleanup();

294 XCloseDisplay(dpy);

295

296 return 0;

297 }