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implemented bar for dwm (I miss status text), I plan that status text is read from stdin in dwm
author Anselm R. Garbe <garbeam@wmii.de>
date Fri, 14 Jul 2006 10:07:38 +0200
parents d18f6dd0cf23
children 1269bd127551
line source
1 /*
2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
3 * See LICENSE file for license details.
4 */
5
6 #include <stdarg.h>
7 #include <stdio.h>
8 #include <stdlib.h>
9 #include <string.h>
10
11 #include <X11/cursorfont.h>
12 #include <X11/Xatom.h>
13 #include <X11/Xproto.h>
14
15 #include "dwm.h"
16
17 /********** CUSTOMIZE **********/
18
19 char *tags[TLast] = {
20 [Tscratch] = "scratch",
21 [Tdev] = "dev",
22 [Tirc] = "irc",
23 [Twww] = "www",
24 [Twork] = "work",
25 };
26
27 /********** CUSTOMIZE **********/
28
29 /* X structs */
30 Display *dpy;
31 Window root, barwin;
32 Atom wm_atom[WMLast], net_atom[NetLast];
33 Cursor cursor[CurLast];
34 Bool running = True;
35 Bool issel;
36
37 int tsel = Tdev; /* default tag */
38 int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
39 char stext[1024];
40
41 DC dc = {0};
42 Client *clients = NULL;
43 Client *sel = NULL;
44
45 static Bool other_wm_running;
46 static const char version[] =
47 "dwm-" VERSION ", (C)opyright MMVI Anselm R. Garbe\n";
48 static int (*x_error_handler) (Display *, XErrorEvent *);
49
50 static void
51 usage() { error("usage: dwm [-v]\n"); }
52
53 static void
54 scan_wins()
55 {
56 unsigned int i, num;
57 Window *wins;
58 XWindowAttributes wa;
59 Window d1, d2;
60
61 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
62 for(i = 0; i < num; i++) {
63 if(!XGetWindowAttributes(dpy, wins[i], &wa))
64 continue;
65 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
66 continue;
67 if(wa.map_state == IsViewable)
68 manage(wins[i], &wa);
69 }
70 }
71 if(wins)
72 XFree(wins);
73 }
74
75 static int
76 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
77 {
78 Atom real;
79 int format;
80 unsigned long res, extra;
81 int status;
82
83 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
84 &res, &extra, prop);
85
86 if(status != Success || *prop == 0) {
87 return 0;
88 }
89 if(res == 0) {
90 free((void *) *prop);
91 }
92 return res;
93 }
94
95 int
96 win_proto(Window w)
97 {
98 unsigned char *protocols;
99 long res;
100 int protos = 0;
101 int i;
102
103 res = win_property(w, wm_atom[WMProtocols], XA_ATOM, 20L, &protocols);
104 if(res <= 0) {
105 return protos;
106 }
107 for(i = 0; i < res; i++) {
108 if(protocols[i] == wm_atom[WMDelete])
109 protos |= WM_PROTOCOL_DELWIN;
110 }
111 free((char *) protocols);
112 return protos;
113 }
114
115 void
116 send_message(Window w, Atom a, long value)
117 {
118 XEvent e;
119
120 e.type = ClientMessage;
121 e.xclient.window = w;
122 e.xclient.message_type = a;
123 e.xclient.format = 32;
124 e.xclient.data.l[0] = value;
125 e.xclient.data.l[1] = CurrentTime;
126 XSendEvent(dpy, w, False, NoEventMask, &e);
127 XFlush(dpy);
128 }
129
130 /*
131 * There's no way to check accesses to destroyed windows, thus
132 * those cases are ignored (especially on UnmapNotify's).
133 * Other types of errors call Xlib's default error handler, which
134 * calls exit().
135 */
136 int
137 error_handler(Display *dpy, XErrorEvent *error)
138 {
139 if(error->error_code == BadWindow
140 || (error->request_code == X_SetInputFocus
141 && error->error_code == BadMatch)
142 || (error->request_code == X_PolyText8
143 && error->error_code == BadDrawable)
144 || (error->request_code == X_PolyFillRectangle
145 && error->error_code == BadDrawable)
146 || (error->request_code == X_PolySegment
147 && error->error_code == BadDrawable)
148 || (error->request_code == X_ConfigureWindow
149 && error->error_code == BadMatch)
150 || (error->request_code == X_GrabKey
151 && error->error_code == BadAccess))
152 return 0;
153 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
154 error->request_code, error->error_code);
155 return x_error_handler(dpy, error); /* may call exit() */
156 }
157
158 /*
159 * Startup Error handler to check if another window manager
160 * is already running.
161 */
162 static int
163 startup_error_handler(Display *dpy, XErrorEvent *error)
164 {
165 other_wm_running = True;
166 return -1;
167 }
168
169 static void
170 cleanup()
171 {
172 while(sel) {
173 resize(sel, True);
174 unmanage(sel);
175 }
176 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
177 }
178
179 void
180 quit(Arg *arg)
181 {
182 running = False;
183 }
184
185 int
186 main(int argc, char *argv[])
187 {
188 int i;
189 XSetWindowAttributes wa;
190 unsigned int mask;
191 Window w;
192 XEvent ev;
193
194 /* command line args */
195 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
196 switch (argv[i][1]) {
197 case 'v':
198 fprintf(stdout, "%s", version);
199 exit(0);
200 break;
201 default:
202 usage();
203 break;
204 }
205 }
206
207 dpy = XOpenDisplay(0);
208 if(!dpy)
209 error("dwm: cannot connect X server\n");
210
211 screen = DefaultScreen(dpy);
212 root = RootWindow(dpy, screen);
213
214 /* check if another WM is already running */
215 other_wm_running = False;
216 XSetErrorHandler(startup_error_handler);
217 /* this causes an error if some other WM is running */
218 XSelectInput(dpy, root, SubstructureRedirectMask);
219 XFlush(dpy);
220
221 if(other_wm_running)
222 error("dwm: another window manager is already running\n");
223
224 XSetErrorHandler(0);
225 x_error_handler = XSetErrorHandler(error_handler);
226
227 /* init atoms */
228 wm_atom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
229 wm_atom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
230 net_atom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
231 net_atom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
232 XChangeProperty(dpy, root, net_atom[NetSupported], XA_ATOM, 32,
233 PropModeReplace, (unsigned char *) net_atom, NetLast);
234
235 /* init cursors */
236 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
237 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
238 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
239
240 update_keys();
241
242 /* style */
243 dc.bg = initcolor(BGCOLOR);
244 dc.fg = initcolor(FGCOLOR);
245 dc.border = initcolor(BORDERCOLOR);
246 initfont(FONT);
247
248 sx = sy = 0;
249 sw = DisplayWidth(dpy, screen);
250 sh = DisplayHeight(dpy, screen);
251 mw = (sw * MASTERW) / 100;
252
253 wa.override_redirect = 1;
254 wa.background_pixmap = ParentRelative;
255 wa.event_mask = ExposureMask;
256
257 bx = by = 0;
258 bw = sw;
259 dc.h = bh = dc.font.height + 4;
260 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
261 CopyFromParent, DefaultVisual(dpy, screen),
262 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
263 XDefineCursor(dpy, barwin, cursor[CurNormal]);
264 XMapRaised(dpy, barwin);
265
266 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
267
268 wa.event_mask = SubstructureRedirectMask | EnterWindowMask \
269 | LeaveWindowMask;
270 wa.cursor = cursor[CurNormal];
271
272 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
273
274 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
275 dc.gc = XCreateGC(dpy, root, 0, 0);
276
277 strcpy(stext, "dwm-"VERSION);
278 scan_wins();
279 draw_bar();
280
281 while(running) {
282 XNextEvent(dpy, &ev);
283 if(handler[ev.type])
284 (handler[ev.type])(&ev); /* call handler */
285 }
286
287 cleanup();
288 XCloseDisplay(dpy);
289
290 return 0;
291 }