dwm-meillo: 2b4bd49fc155 main.c

dwm-meillo

view main.c @ 517:2b4bd49fc155

applied ality's hardcode-0 patches

author	Anselm R. Garbe <arg@10kloc.org>
date	Fri, 29 Sep 2006 18:21:02 +0200
parents	d6d1d0033e3c
children	1a9a0877650c

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, master, 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 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(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 free(seltag);

58 }

60 static void

61 scan(void) {

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(void) {

83 int i, j;

84 unsigned int mask;

85 Window w;

86 XModifierKeymap *modmap;

87 XSetWindowAttributes wa;

89 /* init atoms */

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

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

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

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

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

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

97 /* init cursors */

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

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

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

101

102 modmap = XGetModifierMapping(dpy);

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

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

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

106 numlockmask = (1 << i);

107 }

108 }

109 XFree(modmap);

110

111 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask

112 | 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(VSTACKSYMBOL) > textw(BSTACKSYMBOL) ?

133 textw(VSTACKSYMBOL) : textw(BSTACKSYMBOL);

134 bmw = bmw > textw(FLOATSYMBOL) ?

135 bmw : textw(FLOATSYMBOL);

136 sx = sy = 0;

137 sw = DisplayWidth(dpy, screen);

138 sh = DisplayHeight(dpy, screen);

139 master = ((stackpos == StackBottom ? sh - bh : sw) * MASTER) / 100;

140

141 bx = by = 0;

142 bw = sw;

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

144 wa.override_redirect = 1;

145 wa.background_pixmap = ParentRelative;

146 wa.event_mask = ButtonPressMask | ExposureMask;

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

148 CopyFromParent, DefaultVisual(dpy, screen),

149 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);

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

151 XMapRaised(dpy, barwin);

152

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

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

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

156

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

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

159 }

160

161 /*

162 * Startup Error handler to check if another window manager

163 * is already running.

164 */

165 static int

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

167 otherwm = True;

168 return -1;

169 }

170

171 /* extern */

172

173 int

174 getproto(Window w) {

175 int i, format, protos, status;

176 unsigned long extra, res;

177 Atom *protocols, real;

178

179 protos = 0;

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

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

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

183 return protos;

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

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

186 protos |= PROTODELWIN;

187 free(protocols);

188 return protos;

189 }

190

191 void

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

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 readin = running = False;

208 }

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 int r, xfd;

234 fd_set rd;

235

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

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

238 exit(EXIT_SUCCESS);

239 }

240 else if(argc != 1)

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

242

243 dpy = XOpenDisplay(0);

244 if(!dpy)

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

246

247 xfd = ConnectionNumber(dpy);

248 screen = DefaultScreen(dpy);

249 root = RootWindow(dpy, screen);

250

251 otherwm = False;

252 XSetErrorHandler(xerrorstart);

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

254 XSelectInput(dpy, root, SubstructureRedirectMask);

255 XSync(dpy, False);

256

257 if(otherwm)

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

259

260 XSync(dpy, False);

261 XSetErrorHandler(NULL);

262 xerrorxlib = XSetErrorHandler(xerror);

263 XSync(dpy, False);

264

265 setup();

266 drawstatus();

267 scan();

268

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

270 XSync(dpy, False);

271 procevent();

272 readin = True;

273 while(running) {

274 FD_ZERO(&rd);

275 if(readin)

276 FD_SET(STDIN_FILENO, &rd);

277 FD_SET(xfd, &rd);

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

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

280 continue;

281 if(r > 0) {

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

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

284 if(readin)

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

286 else

287 strcpy(stext, "broken pipe");

288 drawstatus();

289 }

290 }

291 else if(r < 0)

292 eprint("select failed\n");

293 procevent();

294 }

295 cleanup();

296 XCloseDisplay(dpy);

297

298 return 0;

299 }