1 /* Conky, a system monitor, based on torsmo
3 * Any original torsmo code is licensed under the BSD license
5 * All code written since the fork of torsmo is licensed under the GPL
7 * Please see COPYING for details
9 * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
10 * Copyright (c) 2005-2007 Brenden Matthews, Philip Kovacs, et. al.
12 * All rights reserved.
14 * This program is free software: you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation, either version 3 of the License, or
17 * (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program. If not, see <http://www.gnu.org/licenses/>.
32 #include <X11/Xatom.h>
34 #include <X11/Xutil.h>
36 #include <X11/Xft/Xft.h>
47 /* some basic X11 stuff */
52 static int set_transparent;
53 static int background_colour;
55 /* workarea from _NET_WORKAREA, this is where window / text is aligned */
59 struct conky_window window;
61 /* local prototypes */
62 static void update_workarea();
63 static Window find_desktop_window(Window *p_root, Window *p_desktop);
64 static Window find_subwindow(Window win, int w, int h);
69 if ((display = XOpenDisplay(0)) == NULL) {
70 CRIT_ERR("can't open display: %s", XDisplayName(0));
73 screen = DefaultScreen(display);
74 display_width = DisplayWidth(display, screen);
75 display_height = DisplayHeight(display, screen);
80 static void update_workarea()
82 Window root = RootWindow(display, screen);
83 unsigned long nitems, bytes;
84 unsigned char *buf = NULL;
88 /* default work area is display */
91 workarea[2] = display_width;
92 workarea[3] = display_height;
94 /* get current desktop */
95 if (XGetWindowProperty(display, root, ATOM(_NET_CURRENT_DESKTOP), 0, 1,
96 False, XA_CARDINAL, &type, &format, &nitems, &bytes, &buf)
97 == Success && type == XA_CARDINAL && nitems > 0) {
100 /* long desktop = *(long *) buf; */
112 /* Find root window and desktop window.
113 * Return desktop window on success,
114 * and set root and desktop byref return values.
115 * Return 0 on failure. */
116 static Window find_desktop_window(Window *p_root, Window *p_desktop)
120 unsigned long nitems, bytes;
122 Window root = RootWindow(display, screen);
124 Window troot, parent, *children;
125 unsigned char *buf = NULL;
127 if (!p_root || !p_desktop) {
131 /* some window managers set __SWM_VROOT to some child of root window */
133 XQueryTree(display, root, &troot, &parent, &children, &n);
134 for (i = 0; i < (int) n; i++) {
135 if (XGetWindowProperty(display, children[i], ATOM(__SWM_VROOT), 0, 1,
136 False, XA_WINDOW, &type, &format, &nitems, &bytes, &buf)
137 == Success && type == XA_WINDOW) {
138 win = *(Window *) buf;
142 "Conky: desktop window (%lx) found from __SWM_VROOT property\n",
157 /* get subwindows from root */
158 win = find_subwindow(root, -1, -1);
162 win = find_subwindow(win, workarea[2], workarea[3]);
171 "Conky: desktop window (%lx) is subwindow of root window (%lx)\n",
174 fprintf(stderr, "Conky: desktop window (%lx) is root window\n", win);
185 /* sets background to ParentRelative for the Window and all parents */
186 inline void set_transparent_background(Window win)
188 static int colour_set = -1;
190 if (set_transparent) {
194 for (i = 0; i < 50 && parent != RootWindow(display, screen); i++) {
198 XSetWindowBackgroundPixmap(display, parent, ParentRelative);
200 XQueryTree(display, parent, &r, &parent, &children, &n);
203 } else if (colour_set != background_colour) {
204 XSetWindowBackground(display, win, background_colour);
205 colour_set = background_colour;
207 // XClearWindow(display, win); not sure why this was here
210 void init_window(int own_window, int w, int h, int set_trans, int back_colour,
211 char **argv, int argc)
213 /* There seems to be some problems with setting transparent background
214 * (on fluxbox this time). It doesn't happen always and I don't know why it
215 * happens but I bet the bug is somewhere here. */
216 set_transparent = set_trans;
217 background_colour = back_colour;
222 if (!find_desktop_window(&window.root, &window.desktop)) {
226 if (window.type == TYPE_OVERRIDE) {
228 /* An override_redirect True window.
229 * No WM hints or button processing needed. */
230 XSetWindowAttributes attrs = { ParentRelative, 0L, 0, 0L, 0, 0,
231 Always, 0L, 0L, False, StructureNotifyMask | ExposureMask, 0L,
234 /* Parent is desktop window (which might be a child of root) */
235 window.window = XCreateWindow(display, window.desktop, window.x,
236 window.y, w, h, 0, CopyFromParent, InputOutput, CopyFromParent,
237 CWBackPixel | CWOverrideRedirect, &attrs);
239 XLowerWindow(display, window.window);
241 fprintf(stderr, "Conky: window type - override\n");
243 } else { /* window.type != TYPE_OVERRIDE */
245 /* A window managed by the window manager.
246 * Process hints and buttons. */
247 XSetWindowAttributes attrs = { ParentRelative, 0L, 0, 0L, 0, 0,
248 Always, 0L, 0L, False, StructureNotifyMask | ExposureMask |
249 ButtonPressMask | ButtonReleaseMask, 0L, False, 0, 0 };
251 XClassHint classHint;
255 /* Parent is root window so WM can take control */
256 window.window = XCreateWindow(display, window.root, window.x,
257 window.y, w, h, 0, CopyFromParent, InputOutput, CopyFromParent,
258 CWBackPixel | CWOverrideRedirect, &attrs);
260 classHint.res_name = window.class_name;
261 classHint.res_class = classHint.res_name;
263 wmHint.flags = InputHint | StateHint;
264 /* allow decorated windows to be given input focus by WM */
266 TEST_HINT(window.hints, HINT_UNDECORATED) ? False : True;
267 wmHint.initial_state = NormalState;
269 XmbSetWMProperties(display, window.window, window.title, NULL, argv,
270 argc, NULL, &wmHint, &classHint);
272 /* Sets an empty WM_PROTOCOLS property */
273 XSetWMProtocols(display, window.window, NULL, 0);
275 /* Set window type */
276 if ((xa = ATOM(_NET_WM_WINDOW_TYPE)) != None) {
279 switch (window.type) {
281 prop = ATOM(_NET_WM_WINDOW_TYPE_DESKTOP);
282 fprintf(stderr, "Conky: window type - desktop\n");
287 prop = ATOM(_NET_WM_WINDOW_TYPE_NORMAL);
288 fprintf(stderr, "Conky: window type - normal\n");
292 XChangeProperty(display, window.window, xa, XA_ATOM, 32,
293 PropModeReplace, (unsigned char *) &prop, 1);
296 /* Set desired hints */
298 /* Window decorations */
299 if (TEST_HINT(window.hints, HINT_UNDECORATED)) {
300 /* fprintf(stderr, "Conky: hint - undecorated\n");
303 xa = ATOM(_MOTIF_WM_HINTS);
305 long prop[5] = { 2, 0, 0, 0, 0 };
306 XChangeProperty(display, window.window, xa, xa, 32,
307 PropModeReplace, (unsigned char *) prop, 5);
311 /* Below other windows */
312 if (TEST_HINT(window.hints, HINT_BELOW)) {
313 /* fprintf(stderr, "Conky: hint - below\n");
316 xa = ATOM(_WIN_LAYER);
320 XChangeProperty(display, window.window, xa, XA_CARDINAL, 32,
321 PropModeAppend, (unsigned char *) &prop, 1);
324 xa = ATOM(_NET_WM_STATE);
326 Atom xa_prop = ATOM(_NET_WM_STATE_BELOW);
328 XChangeProperty(display, window.window, xa, XA_ATOM, 32,
329 PropModeAppend, (unsigned char *) &xa_prop, 1);
333 /* Above other windows */
334 if (TEST_HINT(window.hints, HINT_ABOVE)) {
335 /* fprintf(stderr, "Conky: hint - above\n");
338 xa = ATOM(_WIN_LAYER);
342 XChangeProperty(display, window.window, xa, XA_CARDINAL, 32,
343 PropModeAppend, (unsigned char *) &prop, 1);
346 xa = ATOM(_NET_WM_STATE);
348 Atom xa_prop = ATOM(_NET_WM_STATE_ABOVE);
350 XChangeProperty(display, window.window, xa, XA_ATOM, 32,
351 PropModeAppend, (unsigned char *) &xa_prop, 1);
356 if (TEST_HINT(window.hints, HINT_STICKY)) {
357 /* fprintf(stderr, "Conky: hint - sticky\n");
360 xa = ATOM(_NET_WM_DESKTOP);
362 CARD32 xa_prop = 0xFFFFFFFF;
364 XChangeProperty(display, window.window, xa, XA_CARDINAL, 32,
365 PropModeAppend, (unsigned char *) &xa_prop, 1);
368 xa = ATOM(_NET_WM_STATE);
370 Atom xa_prop = ATOM(_NET_WM_STATE_STICKY);
372 XChangeProperty(display, window.window, xa, XA_ATOM, 32,
373 PropModeAppend, (unsigned char *) &xa_prop, 1);
378 if (TEST_HINT(window.hints, HINT_SKIP_TASKBAR)) {
379 /* fprintf(stderr, "Conky: hint - skip_taskbar\n");
382 xa = ATOM(_NET_WM_STATE);
384 Atom xa_prop = ATOM(_NET_WM_STATE_SKIP_TASKBAR);
386 XChangeProperty(display, window.window, xa, XA_ATOM, 32,
387 PropModeAppend, (unsigned char *) &xa_prop, 1);
392 if (TEST_HINT(window.hints, HINT_SKIP_PAGER)) {
393 /* fprintf(stderr, "Conky: hint - skip_pager\n");
396 xa = ATOM(_NET_WM_STATE);
398 Atom xa_prop = ATOM(_NET_WM_STATE_SKIP_PAGER);
400 XChangeProperty(display, window.window, xa, XA_ATOM, 32,
401 PropModeAppend, (unsigned char *) &xa_prop, 1);
404 } /* else { window.type != TYPE_OVERRIDE */
406 fprintf(stderr, "Conky: drawing to created window (%lx)\n",
410 XMapWindow(display, window.window);
411 } else /* if (own_window) { */
413 /* root / desktop window */
415 XWindowAttributes attrs;
417 if (!window.window) {
418 window.window = find_desktop_window(&window.root, &window.desktop);
421 if (XGetWindowAttributes(display, window.window, &attrs)) {
422 window.width = attrs.width;
423 window.height = attrs.height;
426 fprintf(stderr, "Conky: drawing to desktop window\n");
429 /* Drawable is same as window. This may be changed by double buffering. */
430 window.drawable = window.window;
436 if (!XdbeQueryExtension(display, &major, &minor)) {
439 window.back_buffer = XdbeAllocateBackBufferName(display,
440 window.window, XdbeBackground);
441 if (window.back_buffer != None) {
442 window.drawable = window.back_buffer;
443 fprintf(stderr, "Conky: drawing to double buffer\n");
449 ERR("failed to set up double buffer");
453 fprintf(stderr, "Conky: drawing to single buffer\n");
459 /* set_transparent_background(window.window);
460 * must be done after double buffer stuff? */
463 set_transparent_background(window.window);
464 XClearWindow(display, window.window);
469 XSelectInput(display, window.window, ExposureMask |
470 (own_window ? (StructureNotifyMask | PropertyChangeMask |
471 ButtonPressMask | ButtonReleaseMask) : 0));
473 XSelectInput(display, window.window, ExposureMask);
477 static Window find_subwindow(Window win, int w, int h)
480 Window troot, parent, *children;
483 /* search subwindows with same size as display or work area */
485 for (i = 0; i < 10; i++) {
486 XQueryTree(display, win, &troot, &parent, &children, &n);
488 for (j = 0; j < n; j++) {
489 XWindowAttributes attrs;
491 if (XGetWindowAttributes(display, children[j], &attrs)) {
492 /* Window must be mapped and same size as display or
494 if (attrs.map_state != 0 && ((attrs.width == display_width
495 && attrs.height == display_height)
496 || (attrs.width == w && attrs.height == h))) {
512 long get_x11_color(const char *name)
517 if (!XParseColor(display, DefaultColormap(display, screen), name, &color)) {
518 /* lets check if it's a hex colour with the # missing in front
519 * if yes, then do something about it */
523 strncpy(&newname[1], name, 62);
524 /* now lets try again */
525 if (!XParseColor(display, DefaultColormap(display, screen), &newname[0],
527 ERR("can't parse X color '%s'", name);
531 if (!XAllocColor(display, DefaultColormap(display, screen), &color)) {
532 ERR("can't allocate X color '%s'", name);
535 return (long) color.pixel;
542 values.graphics_exposures = 0;
543 values.function = GXcopy;
544 window.gc = XCreateGC(display, window.drawable,
545 GCFunction | GCGraphicsExposures, &values);