aewl: 7e92f58754ae main.c

aewl

view main.c @ 567:7e92f58754ae

nah reverting to my prev style, that's really the best

author	arg@mig29
date	Sat, 18 Nov 2006 21:33:33 +0100
parents	651f2c868b31
children	f05cfa7d5128

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 <stdio.h>

8 #include <stdlib.h>

9 #include <string.h>

10 #include <unistd.h>

11 #include <sys/select.h>

12 #include <X11/cursorfont.h>

13 #include <X11/keysym.h>

14 #include <X11/Xatom.h>

15 #include <X11/Xproto.h>

17 /* extern */

19 char stext[1024];

20 Bool *seltag;

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

22 unsigned int master, ntags, numlockmask;

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

24 Bool running = True;

25 Bool issel = True;

26 Client *clients = NULL;

27 Client *sel = NULL;

28 Client *stack = 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(void) {

41 close(STDIN_FILENO);

42 while(sel) {

43 resize(sel, True, TopLeft);

44 unmanage(sel);

45 }

46 if(dc.font.set)

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

48 else

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

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

51 XFreePixmap(dpy, dc.drawable);

52 XFreeGC(dpy, dc.gc);

53 XDestroyWindow(dpy, barwin);

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

55 XSync(dpy, False);

56 free(seltag);

57 }

59 static void

60 scan(void) {

61 unsigned int i, num;

62 Window *wins, d1, d2;

63 XWindowAttributes wa;

65 wins = NULL;

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

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

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

69 continue;

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

71 continue;

72 if(wa.map_state == IsViewable)

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

74 }

75 }

76 if(wins)

77 XFree(wins);

78 }

80 static void

81 setup(void) {

82 int i, j;

83 unsigned int mask;

84 Window w;

85 XModifierKeymap *modmap;

86 XSetWindowAttributes wa;

88 /* init atoms */

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

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

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

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

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

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

95 /* init cursors */

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

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

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

99 /* init modifier map */

100 modmap = XGetModifierMapping(dpy);

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

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

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

104 numlockmask = (1 << i);

105 }

106 }

107 XFree(modmap);

108 /* select for events */

109 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask

110 | EnterWindowMask | LeaveWindowMask;

111 wa.cursor = cursor[CurNormal];

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

113 grabkeys();

114 initrregs();

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

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

117 seltag[0] = True;

118 /* style */

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

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

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

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

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

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

125 setfont(FONT);

126 /* geometry */

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

128 sx = sy = 0;

129 sw = DisplayWidth(dpy, screen);

130 sh = DisplayHeight(dpy, screen);

131 master = MASTER;

132 /* bar */

133 bx = by = 0;

134 bw = sw;

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

136 wa.override_redirect = 1;

137 wa.background_pixmap = ParentRelative;

138 wa.event_mask = ButtonPressMask | ExposureMask;

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

140 CopyFromParent, DefaultVisual(dpy, screen),

141 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);

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

143 XMapRaised(dpy, barwin);

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

145 /* windowarea */

146 wax = sx;

147 way = bh;

148 wah = sh - bh;

149 waw = sw;

150 /* pixmap for everything */

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 /* multihead support */

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

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 otherwm = True;

165 return -1;

166 }

167

168 /* extern */

169

170 int

171 getproto(Window w) {

172 int i, format, protos, status;

173 unsigned long extra, res;

174 Atom *protocols, real;

175

176 protos = 0;

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

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

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

180 return protos;

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

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

183 protos |= PROTODELWIN;

184 free(protocols);

185 return protos;

186 }

187

188 void

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

190 XEvent e;

191

192 e.type = ClientMessage;

193 e.xclient.window = w;

194 e.xclient.message_type = a;

195 e.xclient.format = 32;

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

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

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

199 XSync(dpy, False);

200 }

201

202 void

203 quit(Arg *arg) {

204 readin = running = False;

205 }

206

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

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

209 * default error handler, which may call exit.

210 */

211 int

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

213 if(ee->error_code == BadWindow

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

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

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

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

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

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

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

221 return 0;

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

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

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

225 }

226

227 int

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

229 int r, xfd;

230 fd_set rd;

231

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

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

234 exit(EXIT_SUCCESS);

235 }

236 else if(argc != 1)

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

238 dpy = XOpenDisplay(0);

239 if(!dpy)

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

241 xfd = ConnectionNumber(dpy);

242 screen = DefaultScreen(dpy);

243 root = RootWindow(dpy, screen);

244 otherwm = False;

245 XSetErrorHandler(xerrorstart);

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

247 XSelectInput(dpy, root, SubstructureRedirectMask);

248 XSync(dpy, False);

249 if(otherwm)

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

251

252 XSync(dpy, False);

253 XSetErrorHandler(NULL);

254 xerrorxlib = XSetErrorHandler(xerror);

255 XSync(dpy, False);

256 setup();

257 drawstatus();

258 scan();

259

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

261 XSync(dpy, False);

262 procevent();

263 readin = True;

264 while(running) {

265 FD_ZERO(&rd);

266 if(readin)

267 FD_SET(STDIN_FILENO, &rd);

268 FD_SET(xfd, &rd);

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

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

271 continue;

272 if(r > 0) {

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

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

275 if(readin)

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

277 else

278 strcpy(stext, "broken pipe");

279 drawstatus();

280 }

281 }

282 else if(r < 0)

283 eprint("select failed\n");

284 procevent();

285 }

286 cleanup();

287 XCloseDisplay(dpy);

288 return 0;

289 }