1 /* -*- mode: c; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
2 * vim: ts=4 sw=4 noet ai cindent syntax=c
4 * Conky, a system monitor, based on torsmo
6 * Any original torsmo code is licensed under the BSD license
8 * All code written since the fork of torsmo is licensed under the GPL
10 * Please see COPYING for details
12 * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
13 * Copyright (c) 2005-2010 Brenden Matthews, Philip Kovacs, et. al.
15 * All rights reserved.
17 * This program is free software: you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation, either version 3 of the License, or
20 * (at your option) any later version.
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 * You should have received a copy of the GNU General Public License
27 * along with this program. If not, see <http://www.gnu.org/licenses/>.
38 #include <X11/Xatom.h>
40 #include <X11/Xutil.h>
46 #include <X11/Xft/Xft.h>
58 int own_window_argb_value;
60 /* some basic X11 stuff */
61 Display *display = NULL;
65 static int set_transparent;
66 static int background_colour;
68 /* workarea from _NET_WORKAREA, this is where window / text is aligned */
72 struct conky_window window;
73 char window_created = 0;
75 /* local prototypes */
76 static void update_workarea(void);
77 static Window find_desktop_window(Window *p_root, Window *p_desktop);
78 static Window find_subwindow(Window win, int w, int h);
81 void init_X11(const char *disp)
84 if ((display = XOpenDisplay(disp)) == NULL) {
85 CRIT_ERR(NULL, NULL, "can't open display: %s", XDisplayName(disp));
89 screen = DefaultScreen(display);
90 display_width = DisplayWidth(display, screen);
91 display_height = DisplayHeight(display, screen);
93 get_x11_desktop_info(display, 0);
98 static void update_workarea(void)
100 /* default work area is display */
103 workarea[2] = display_width;
104 workarea[3] = display_height;
107 /* Find root window and desktop window.
108 * Return desktop window on success,
109 * and set root and desktop byref return values.
110 * Return 0 on failure. */
111 static Window find_desktop_window(Window *p_root, Window *p_desktop)
115 unsigned long nitems, bytes;
117 Window root = RootWindow(display, screen);
119 Window troot, parent, *children;
120 unsigned char *buf = NULL;
122 if (!p_root || !p_desktop) {
126 /* some window managers set __SWM_VROOT to some child of root window */
128 XQueryTree(display, root, &troot, &parent, &children, &n);
129 for (i = 0; i < (int) n; i++) {
130 if (XGetWindowProperty(display, children[i], ATOM(__SWM_VROOT), 0, 1,
131 False, XA_WINDOW, &type, &format, &nitems, &bytes, &buf)
132 == Success && type == XA_WINDOW) {
133 win = *(Window *) buf;
137 PACKAGE_NAME": desktop window (%lx) found from __SWM_VROOT property\n",
152 /* get subwindows from root */
153 win = find_subwindow(root, -1, -1);
157 win = find_subwindow(win, workarea[2], workarea[3]);
166 PACKAGE_NAME": desktop window (%lx) is subwindow of root window (%lx)\n",
169 fprintf(stderr, PACKAGE_NAME": desktop window (%lx) is root window\n", win);
180 static int colour_set = -1;
181 /* if no argb visual is configured sets background to ParentRelative for the Window and all parents,
182 else real transparency is used */
183 void set_transparent_background(Window win, int alpha)
185 (void)alpha; /* disable warnings when unused */
188 if (have_argb_visual) {
190 if (set_transparent) {
191 XSetWindowBackground(display, win, 0x00);
192 } else if (colour_set != background_colour) {
193 XSetWindowBackground(display, win,
194 background_colour | (alpha << 24));
195 colour_set = background_colour;
198 #endif /* USE_ARGB */
199 // pseudo transparency
201 if (set_transparent) {
205 for (i = 0; i < 50 && parent != RootWindow(display, screen); i++) {
209 XSetWindowBackgroundPixmap(display, parent, ParentRelative);
211 XQueryTree(display, parent, &r, &parent, &children, &n);
214 } else if (colour_set != background_colour) {
215 XSetWindowBackground(display, win, background_colour);
216 colour_set = background_colour;
220 #endif /* USE_ARGB */
224 static int get_argb_visual(Visual** visual, int *depth) {
225 /* code from gtk project, gdk_screen_get_rgba_visual */
226 XVisualInfo visual_template;
227 XVisualInfo *visual_list;
228 int nxvisuals = 0, i;
230 visual_template.screen = screen;
231 visual_list = XGetVisualInfo (display, VisualScreenMask,
232 &visual_template, &nxvisuals);
233 for (i = 0; i < nxvisuals; i++) {
234 if (visual_list[i].depth == 32 &&
235 (visual_list[i].red_mask == 0xff0000 &&
236 visual_list[i].green_mask == 0x00ff00 &&
237 visual_list[i].blue_mask == 0x0000ff)) {
238 *visual = visual_list[i].visual;
239 *depth = visual_list[i].depth;
240 DBGP("Found ARGB Visual");
245 // no argb visual available
246 DBGP("No ARGB Visual found");
250 #endif /* USE_ARGB */
252 void destroy_window(void)
256 XftDrawDestroy(window.xftdraw);
260 XFreeGC(display, window.gc);
263 XFreeGC(display, window.gc_back);
265 if(window.back_buffer != None) {
266 XFreePixmap(display, window.back_buffer);
268 memset(&window, 0, sizeof(struct conky_window));
272 void init_window(int own_window, int w, int h, int set_trans, int back_colour,
273 char **argv, int argc)
275 /* There seems to be some problems with setting transparent background
276 * (on fluxbox this time). It doesn't happen always and I don't know why it
277 * happens but I bet the bug is somewhere here. */
278 set_transparent = set_trans;
279 background_colour = back_colour;
284 int depth = 0, flags;
285 Visual *visual = NULL;
287 if (!find_desktop_window(&window.root, &window.desktop)) {
292 if (use_argb_visual && get_argb_visual(&visual, &depth)) {
293 have_argb_visual = 1;
294 window.visual = visual;
295 window.colourmap = XCreateColormap(display,
296 DefaultRootWindow(display), window.visual, AllocNone);
298 #endif /* USE_ARGB */
299 window.visual = DefaultVisual(display, screen);
300 window.colourmap = DefaultColormap(display, screen);
301 depth = CopyFromParent;
302 visual = CopyFromParent;
305 #endif /* USE_ARGB */
307 if (window.type == TYPE_OVERRIDE) {
309 /* An override_redirect True window.
310 * No WM hints or button processing needed. */
311 XSetWindowAttributes attrs = { ParentRelative, 0L, 0, 0L, 0, 0,
312 Always, 0L, 0L, False, StructureNotifyMask | ExposureMask, 0L,
315 if (have_argb_visual) {
316 attrs.colormap = window.colourmap;
317 flags = CWBorderPixel | CWColormap | CWOverrideRedirect;
319 #endif /* USE_ARGB */
320 flags = CWBackPixel | CWOverrideRedirect;
323 #endif /* USE_ARGB */
325 /* Parent is desktop window (which might be a child of root) */
326 window.window = XCreateWindow(display, window.desktop, window.x,
327 window.y, w, h, 0, depth, InputOutput, visual,
330 XLowerWindow(display, window.window);
332 fprintf(stderr, PACKAGE_NAME": window type - override\n");
334 } else { /* window.type != TYPE_OVERRIDE */
336 /* A window managed by the window manager.
337 * Process hints and buttons. */
338 XSetWindowAttributes attrs = { ParentRelative, 0L, 0, 0L, 0, 0,
339 Always, 0L, 0L, False, StructureNotifyMask | ExposureMask |
340 ButtonPressMask | ButtonReleaseMask, 0L, False, 0, 0 };
342 XClassHint classHint;
347 if (have_argb_visual) {
348 attrs.colormap = window.colourmap;
349 flags = CWBorderPixel | CWColormap | CWOverrideRedirect;
351 #endif /* USE_ARGB */
352 flags = CWBackPixel | CWOverrideRedirect;
355 #endif /* USE_ARGB */
357 if (window.type == TYPE_DOCK) {
358 window.x = window.y = 0;
360 /* Parent is root window so WM can take control */
362 fprintf(stderr, PACKAGE_NAME": creating window of %d x %d x %d\n",w,h,depth);
363 window.window = XCreateWindow(display, window.root, window.x,
364 window.y, w, h, 0, depth, InputOutput, visual,
367 classHint.res_name = window.class_name;
368 classHint.res_class = classHint.res_name;
370 wmHint.flags = InputHint | StateHint;
371 /* allow decorated windows to be given input focus by WM */
373 TEST_HINT(window.hints, HINT_UNDECORATED) ? False : True;
374 if (window.type == TYPE_DOCK || window.type == TYPE_PANEL) {
375 wmHint.initial_state = WithdrawnState;
377 wmHint.initial_state = NormalState;
380 XmbSetWMProperties(display, window.window, NULL, NULL, argv,
381 argc, NULL, &wmHint, &classHint);
382 XStoreName(display, window.window, window.title);
384 /* Sets an empty WM_PROTOCOLS property */
385 XSetWMProtocols(display, window.window, NULL, 0);
387 /* Set window type */
388 if ((xa = ATOM(_NET_WM_WINDOW_TYPE)) != None) {
391 switch (window.type) {
393 prop = ATOM(_NET_WM_WINDOW_TYPE_DESKTOP);
394 fprintf(stderr, PACKAGE_NAME": window type - desktop\n");
398 prop = ATOM(_NET_WM_WINDOW_TYPE_DOCK);
399 fprintf(stderr, PACKAGE_NAME": window type - dock\n");
403 prop = ATOM(_NET_WM_WINDOW_TYPE_DOCK);
404 fprintf(stderr, PACKAGE_NAME": window type - panel\n");
409 prop = ATOM(_NET_WM_WINDOW_TYPE_NORMAL);
410 fprintf(stderr, PACKAGE_NAME": window type - normal\n");
414 XChangeProperty(display, window.window, xa, XA_ATOM, 32,
415 PropModeReplace, (unsigned char *) &prop, 1);
418 /* Set desired hints */
420 /* Window decorations */
421 if (TEST_HINT(window.hints, HINT_UNDECORATED)) {
422 /* fprintf(stderr, PACKAGE_NAME": hint - undecorated\n");
425 xa = ATOM(_MOTIF_WM_HINTS);
427 long prop[5] = { 2, 0, 0, 0, 0 };
428 XChangeProperty(display, window.window, xa, xa, 32,
429 PropModeReplace, (unsigned char *) prop, 5);
433 /* Below other windows */
434 if (TEST_HINT(window.hints, HINT_BELOW)) {
435 /* fprintf(stderr, PACKAGE_NAME": hint - below\n");
438 xa = ATOM(_WIN_LAYER);
442 XChangeProperty(display, window.window, xa, XA_CARDINAL, 32,
443 PropModeAppend, (unsigned char *) &prop, 1);
446 xa = ATOM(_NET_WM_STATE);
448 Atom xa_prop = ATOM(_NET_WM_STATE_BELOW);
450 XChangeProperty(display, window.window, xa, XA_ATOM, 32,
451 PropModeAppend, (unsigned char *) &xa_prop, 1);
455 /* Above other windows */
456 if (TEST_HINT(window.hints, HINT_ABOVE)) {
457 /* fprintf(stderr, PACKAGE_NAME": hint - above\n");
460 xa = ATOM(_WIN_LAYER);
464 XChangeProperty(display, window.window, xa, XA_CARDINAL, 32,
465 PropModeAppend, (unsigned char *) &prop, 1);
468 xa = ATOM(_NET_WM_STATE);
470 Atom xa_prop = ATOM(_NET_WM_STATE_ABOVE);
472 XChangeProperty(display, window.window, xa, XA_ATOM, 32,
473 PropModeAppend, (unsigned char *) &xa_prop, 1);
478 if (TEST_HINT(window.hints, HINT_STICKY)) {
479 /* fprintf(stderr, PACKAGE_NAME": hint - sticky\n");
482 xa = ATOM(_NET_WM_DESKTOP);
484 CARD32 xa_prop = 0xFFFFFFFF;
486 XChangeProperty(display, window.window, xa, XA_CARDINAL, 32,
487 PropModeAppend, (unsigned char *) &xa_prop, 1);
490 xa = ATOM(_NET_WM_STATE);
492 Atom xa_prop = ATOM(_NET_WM_STATE_STICKY);
494 XChangeProperty(display, window.window, xa, XA_ATOM, 32,
495 PropModeAppend, (unsigned char *) &xa_prop, 1);
500 if (TEST_HINT(window.hints, HINT_SKIP_TASKBAR)) {
501 /* fprintf(stderr, PACKAGE_NAME": hint - skip_taskbar\n");
504 xa = ATOM(_NET_WM_STATE);
506 Atom xa_prop = ATOM(_NET_WM_STATE_SKIP_TASKBAR);
508 XChangeProperty(display, window.window, xa, XA_ATOM, 32,
509 PropModeAppend, (unsigned char *) &xa_prop, 1);
514 if (TEST_HINT(window.hints, HINT_FULLSCREEN)) {
515 fprintf(stderr, PACKAGE_NAME": hint - fullscreen\n");
518 xa = ATOM(_NET_WM_STATE);
520 Atom xa_prop = ATOM(_NET_WM_STATE_FULLSCREEN);
522 XChangeProperty(display, window.window, xa, XA_ATOM, 32,
523 PropModeAppend, (unsigned char *) &xa_prop, 1);
528 fprintf(stderr, PACKAGE_NAME": drawing to created window (0x%lx)\n",
532 XMapWindow(display, window.window);
535 #endif /* OWN_WINDOW */
537 if (!window.window) {
538 window.window = find_desktop_window(&window.root, &window.desktop);
540 window.visual = DefaultVisual(display, screen);
541 window.colourmap = DefaultColormap(display, screen);
543 fprintf(stderr, PACKAGE_NAME": drawing to desktop window\n");
547 fprintf(stderr, PACKAGE_NAME": getting window attrs\n");
548 XWindowAttributes attrs;
549 if (XGetWindowAttributes(display, window.window, &attrs)) {
550 window.width = attrs.width;
551 window.height = attrs.height;
552 window.depth = attrs.depth;
556 /* Drawable is same as window. This may be changed by double buffering. */
557 window.drawable = window.window;
562 window.back_buffer = XCreatePixmap(display, window.window,
563 window.width, window.height, window.depth);
564 if (window.back_buffer != None) {
565 window.drawable = window.back_buffer;
566 fprintf(stderr, PACKAGE_NAME": created %d x %d x %d back buffer\n",window.width, window.height, window.depth);
572 NORM_ERR("failed to set up double buffer");
576 fprintf(stderr, PACKAGE_NAME": drawing to single buffer\n");
581 cimlib_init(display, window.drawable, window.visual, window.colourmap);
586 XSelectInput(display, window.window, ExposureMask | PropertyChangeMask
588 | (own_window ? (StructureNotifyMask |
589 ButtonPressMask | ButtonReleaseMask) : 0)
594 static Window find_subwindow(Window win, int w, int h)
597 Window troot, parent, *children;
600 /* search subwindows with same size as display or work area */
602 for (i = 0; i < 10; i++) {
603 XQueryTree(display, win, &troot, &parent, &children, &n);
605 for (j = 0; j < n; j++) {
606 XWindowAttributes attrs;
608 if (XGetWindowAttributes(display, children[j], &attrs)) {
609 /* Window must be mapped and same size as display or
611 if (attrs.map_state != 0 && ((attrs.width == display_width
612 && attrs.height == display_height)
613 || (attrs.width == w && attrs.height == h))) {
633 values.graphics_exposures = 0;
634 values.function = GXcopy;
635 window.gc = XCreateGC(display, window.drawable,
636 GCFunction | GCGraphicsExposures, &values);
637 window.gc_back = XCreateGC(display, window.drawable,
638 GCFunction | GCGraphicsExposures, &values);
641 //Get current desktop number
642 static inline void get_x11_desktop_current(Display *current_display, Window root, Atom atom)
646 unsigned long nitems;
647 unsigned long bytes_after;
648 unsigned char *prop = NULL;
649 struct information *current_info = &info;
651 if (atom == None) return;
653 if ( (XGetWindowProperty( current_display, root, atom,
654 0, 1L, False, XA_CARDINAL,
655 &actual_type, &actual_format, &nitems,
656 &bytes_after, &prop ) == Success ) &&
657 (actual_type == XA_CARDINAL) &&
658 (nitems == 1L) && (actual_format == 32) ) {
659 current_info->x11.desktop.current = prop[0]+1;
666 //Get total number of available desktops
667 static inline void get_x11_desktop_number(Display *current_display, Window root, Atom atom)
671 unsigned long nitems;
672 unsigned long bytes_after;
673 unsigned char *prop = NULL;
674 struct information *current_info = &info;
676 if (atom == None) return;
678 if ( (XGetWindowProperty( current_display, root, atom,
679 0, 1L, False, XA_CARDINAL,
680 &actual_type, &actual_format, &nitems,
681 &bytes_after, &prop ) == Success ) &&
682 (actual_type == XA_CARDINAL) &&
683 (nitems == 1L) && (actual_format == 32) ) {
684 current_info->x11.desktop.number = prop[0];
691 //Get all desktop names
692 static inline void get_x11_desktop_names(Display *current_display, Window root, Atom atom)
696 unsigned long nitems;
697 unsigned long bytes_after;
698 unsigned char *prop = NULL;
699 struct information *current_info = &info;
701 if (atom == None) return;
703 if ( (XGetWindowProperty( current_display, root, atom,
704 0, (~0L), False, ATOM(UTF8_STRING),
705 &actual_type, &actual_format, &nitems,
706 &bytes_after, &prop ) == Success ) &&
707 (actual_type == ATOM(UTF8_STRING)) &&
708 (nitems > 0L) && (actual_format == 8) ) {
710 if(current_info->x11.desktop.all_names) {
711 free(current_info->x11.desktop.all_names);
712 current_info->x11.desktop.all_names = NULL;
714 current_info->x11.desktop.all_names = malloc(nitems*sizeof(char));
715 memcpy(current_info->x11.desktop.all_names, prop, nitems);
716 current_info->x11.desktop.nitems = nitems;
723 //Get current desktop name
724 static inline void get_x11_desktop_current_name(char *names)
726 struct information *current_info = &info;
727 unsigned int i = 0, j = 0;
730 while ( i < current_info->x11.desktop.nitems ) {
731 if ( names[i++] == '\0' ) {
732 if ( ++k == current_info->x11.desktop.current ) {
733 if (current_info->x11.desktop.name) {
734 free(current_info->x11.desktop.name);
735 current_info->x11.desktop.name = NULL;
737 current_info->x11.desktop.name = malloc((i-j)*sizeof(char));
738 //desktop names can be empty but should always be not null
739 strcpy( current_info->x11.desktop.name, (char *)&names[j] );
747 void get_x11_desktop_info(Display *current_display, Atom atom)
750 static Atom atom_current, atom_number, atom_names;
751 struct information *current_info = &info;
752 XWindowAttributes window_attributes;
754 root = RootWindow(current_display, current_info->x11.monitor.current);
756 /* Check if we initialise else retrieve changed property */
758 atom_current = XInternAtom(current_display, "_NET_CURRENT_DESKTOP", True);
759 atom_number = XInternAtom(current_display, "_NET_NUMBER_OF_DESKTOPS", True);
760 atom_names = XInternAtom(current_display, "_NET_DESKTOP_NAMES", True);
761 get_x11_desktop_current(current_display, root, atom_current);
762 get_x11_desktop_number(current_display, root, atom_number);
763 get_x11_desktop_names(current_display, root, atom_names);
764 get_x11_desktop_current_name(current_info->x11.desktop.all_names);
766 /* Set the PropertyChangeMask on the root window, if not set */
767 XGetWindowAttributes(display, root, &window_attributes);
768 if (!(window_attributes.your_event_mask & PropertyChangeMask)) {
769 XSetWindowAttributes attributes;
770 attributes.event_mask = window_attributes.your_event_mask | PropertyChangeMask;
771 XChangeWindowAttributes(display, root, CWEventMask, &attributes);
772 XGetWindowAttributes(display, root, &window_attributes);
775 if (atom == atom_current) {
776 get_x11_desktop_current(current_display, root, atom_current);
777 get_x11_desktop_current_name(current_info->x11.desktop.all_names);
778 } else if (atom == atom_number) {
779 get_x11_desktop_number(current_display, root, atom_number);
780 } else if (atom == atom_names) {
781 get_x11_desktop_names(current_display, root, atom_names);
782 get_x11_desktop_current_name(current_info->x11.desktop.all_names);
787 int update_x11info(void)
789 struct information *current_info = &info;
790 if (x_initialised != YES)
792 current_info->x11.monitor.number = XScreenCount(display);
793 current_info->x11.monitor.current = XDefaultScreen(display);
798 /* reserve window manager space */
799 void set_struts(int sidenum)
802 if ((strut = ATOM(_NET_WM_STRUT)) != None) {
803 /* reserve space at left, right, top, bottom */
804 signed long sizes[12] = {0};
807 /* define strut depth */
811 sizes[0] = window.x + window.width;
815 sizes[1] = display_width - window.x;
819 sizes[2] = window.y + window.height;
823 sizes[3] = display_height - window.y;
827 /* define partial strut length */
829 sizes[4 + (sidenum*2)] = window.y;
830 sizes[5 + (sidenum*2)] = window.y + window.height;
831 } else if (sidenum <= 3) {
832 sizes[4 + (sidenum*2)] = window.x;
833 sizes[5 + (sidenum*2)] = window.x + window.width;
836 /* check constraints */
837 for (i = 0; i < 12; i++) {
841 if (i <= 1 || i >= 8) {
842 if (sizes[i] > display_width) {
843 sizes[i] = display_width;
846 if (sizes[i] > display_height) {
847 sizes[i] = display_height;
853 XChangeProperty(display, window.window, strut, XA_CARDINAL, 32,
854 PropModeReplace, (unsigned char *) &sizes, 4);
856 if ((strut = ATOM(_NET_WM_STRUT_PARTIAL)) != None) {
857 XChangeProperty(display, window.window, strut, XA_CARDINAL, 32,
858 PropModeReplace, (unsigned char *) &sizes, 12);
862 #endif /* OWN_WINDOW */
865 void xdbe_swap_buffers(void)
868 //XWindowAttributes dest;//leaks
869 //XGetWindowAttributes(display, window.window, &dest);
870 //unsigned int src_height, src_width, src_depth = 0;
871 //XGetGeometry(display, window.back_buffer, NULL, NULL, NULL,src_width,src_height, NULL, src_depth);
872 // fprintf(stderr, PACKAGE_NAME": copy from %d x %d x %d to %d x %d x %d\n",src_width, src_height, src_depth, dest.width, dest.height, dest.depth);
873 XCopyArea(display, window.drawable, window.window,
874 window.gc_back, 0, 0, window.width, window.height, 0, 0);
875 /* FIXME should fill w/ window background */
876 // XFillRectangle(display, window.back_buffer, window.gc,
877 // 0, 0, window.width, window.height);
880 #endif /* HAVE_XDBE */