1 /* demo-Xm.c --- implements the interactive demo-mode and options dialogs.
2 * xscreensaver, Copyright (c) 1993-2001 Jamie Zawinski <jwz@jwz.org>
4 * Permission to use, copy, modify, distribute, and sell this software and its
5 * documentation for any purpose is hereby granted without fee, provided that
6 * the above copyright notice appear in all copies and that both that
7 * copyright notice and this permission notice appear in supporting
8 * documentation. No representations are made about the suitability of this
9 * software for any purpose. It is provided "as is" without express or
17 #ifdef HAVE_MOTIF /* whole file */
26 # include <pwd.h> /* for getpwuid() */
32 # include <sys/utsname.h> /* for uname() */
33 #endif /* HAVE_UNAME */
37 #include <X11/Xproto.h> /* for CARD32 */
38 #include <X11/Xatom.h> /* for XA_INTEGER */
39 #include <X11/Intrinsic.h>
40 #include <X11/StringDefs.h>
42 /* We don't actually use any widget internals, but these are included
43 so that gdb will have debug info for the widgets... */
44 #include <X11/IntrinsicP.h>
45 #include <X11/ShellP.h>
53 # include <X11/Xmu/Error.h>
55 # include <Xmu/Error.h>
66 #include <Xm/LabelG.h>
67 #include <Xm/RowColumn.h>
68 #include <Xm/MessageB.h>
70 #ifdef HAVE_XMCOMBOBOX /* a Motif 2.0 widget */
71 # include <Xm/ComboBox.h>
72 # ifndef XmNtextField /* Lesstif 0.89.4 bug */
73 # undef HAVE_XMCOMBOBOX
75 #endif /* HAVE_XMCOMBOBOX */
79 #include "resources.h" /* for parse_time() */
80 #include "visual.h" /* for has_writable_cells() */
81 #include "remote.h" /* for xscreensaver_command() */
89 #define countof(x) (sizeof((x))/sizeof((*x)))
93 char *progclass = "XScreenSaver";
97 saver_preferences *a, *b;
100 static void *global_prefs_pair; /* I hate C so much... */
102 char *blurb (void) { return progname; }
104 extern Widget create_xscreensaver_demo (Widget parent);
105 extern const char *visual_menu[];
108 static char *short_version = 0;
111 Atom XA_SCREENSAVER, XA_SCREENSAVER_RESPONSE, XA_SCREENSAVER_VERSION;
112 Atom XA_SCREENSAVER_ID, XA_SCREENSAVER_STATUS, XA_SELECT, XA_DEMO;
113 Atom XA_ACTIVATE, XA_BLANK, XA_LOCK, XA_RESTART, XA_EXIT;
116 static void populate_demo_window (Widget toplevel,
117 int which, prefs_pair *pair);
118 static void populate_prefs_page (Widget top, prefs_pair *pair);
119 static int apply_changes_and_save (Widget widget);
120 static int maybe_reload_init_file (Widget widget, prefs_pair *pair);
121 static void await_xscreensaver (Widget widget);
124 /* Some random utility functions
128 name_to_widget (Widget widget, const char *name)
133 strcpy (name2+1, name);
135 while ((parent = XtParent (widget)))
137 return XtNameToWidget (widget, name2);
142 /* Why this behavior isn't automatic in *either* toolkit, I'll never know.
143 Takes a scroller, viewport, or list as an argument.
146 ensure_selected_item_visible (Widget list)
150 if (XmListGetSelectedPos (list, &pos_list, &pos_count) && pos_count > 0)
155 XmNtopItemPosition, &top,
156 XmNvisibleItemCount, &visible,
158 if (pos_list[0] >= top + visible)
160 int pos = pos_list[0] - visible + 1;
161 if (pos < 0) pos = 0;
162 XmListSetPos (list, pos);
164 else if (pos_list[0] < top)
166 XmListSetPos (list, pos_list[0]);
170 XtFree ((char *) pos_list);
175 warning_dialog_dismiss_cb (Widget button, XtPointer client_data,
178 Widget shell = (Widget) client_data;
179 XtDestroyWidget (shell);
184 warning_dialog (Widget parent, const char *message, int center)
186 char *msg = strdup (message);
201 dialog = XmCreateWarningDialog (parent, "warning", av, ac);
203 w = XmMessageBoxGetChild (dialog, XmDIALOG_MESSAGE_LABEL);
204 if (w) XtUnmanageChild (w);
205 w = XmMessageBoxGetChild (dialog, XmDIALOG_CANCEL_BUTTON);
206 if (w) XtUnmanageChild (w);
207 w = XmMessageBoxGetChild (dialog, XmDIALOG_HELP_BUTTON);
208 if (w) XtUnmanageChild (w);
210 ok = XmMessageBoxGetChild (dialog, XmDIALOG_OK_BUTTON);
213 XtSetArg (av[ac], XmNnumColumns, 1); ac++;
214 XtSetArg (av[ac], XmNorientation, XmVERTICAL); ac++;
215 XtSetArg (av[ac], XmNpacking, XmPACK_COLUMN); ac++;
216 XtSetArg (av[ac], XmNrowColumnType, XmWORK_AREA); ac++;
217 XtSetArg (av[ac], XmNspacing, 0); ac++;
218 container = XmCreateRowColumn (dialog, "container", av, ac);
224 char *s = strchr (head, '\n');
227 sprintf (name, "label%d", i++);
229 xmstr = XmStringCreate (head, XmSTRING_DEFAULT_CHARSET);
231 XtSetArg (av[ac], XmNlabelString, xmstr); ac++;
232 XtSetArg (av[ac], XmNmarginHeight, 0); ac++;
233 label = XmCreateLabelGadget (container, name, av, ac);
234 XtManageChild (label);
235 XmStringFree (xmstr);
245 XtManageChild (container);
246 XtRealizeWidget (dialog);
247 XtManageChild (dialog);
249 XtAddCallback (ok, XmNactivateCallback, warning_dialog_dismiss_cb, dialog);
256 run_cmd (Widget widget, Atom command, int arg)
261 apply_changes_and_save (widget);
262 status = xscreensaver_command (XtDisplay (widget),
263 command, arg, False, &err);
268 sprintf (buf, "Error:\n\n%s", err);
270 strcpy (buf, "Unknown error!");
271 warning_dialog (widget, buf, 100);
278 run_hack (Widget widget, int which, Bool report_errors_p)
280 if (which < 0) return;
281 apply_changes_and_save (widget);
283 run_cmd (widget, XA_DEMO, which + 1);
287 xscreensaver_command (XtDisplay (widget), XA_DEMO, which + 1, False, &s);
298 exit_menu_cb (Widget button, XtPointer client_data, XtPointer ignored)
300 apply_changes_and_save (XtParent (button));
306 wm_close_cb (Widget widget, GdkEvent *event, XtPointer data)
308 apply_changes_and_save (XtParent (button));
314 cut_menu_cb (Widget button, XtPointer client_data, XtPointer ignored)
317 warning_dialog (XtParent (button),
319 "cut unimplemented\n", 1);
324 copy_menu_cb (Widget button, XtPointer client_data, XtPointer ignored)
327 warning_dialog (XtParent (button),
329 "copy unimplemented\n", 1);
334 paste_menu_cb (Widget button, XtPointer client_data, XtPointer ignored)
337 warning_dialog (XtParent (button),
339 "paste unimplemented\n", 1);
344 about_menu_cb (Widget button, XtPointer client_data, XtPointer ignored)
347 char *s = strdup (screensaver_id + 4);
350 s2 = strchr (s, ',');
354 sprintf (buf, "%s\n%s\n\n"
355 "For updates, check http://www.jwz.org/xscreensaver/",
359 warning_dialog (XtParent (button), buf, 100);
364 doc_menu_cb (Widget button, XtPointer client_data, XtPointer ignored)
366 prefs_pair *pair = (prefs_pair *) client_data;
368 saver_preferences *p = pair->a;
371 if (!p->help_url || !*p->help_url)
373 warning_dialog (XtParent (button),
375 "No Help URL has been specified.\n", 100);
379 help_command = (char *) malloc (strlen (p->load_url_command) +
380 (strlen (p->help_url) * 2) + 20);
381 strcpy (help_command, "( ");
382 sprintf (help_command + strlen(help_command),
383 p->load_url_command, p->help_url, p->help_url);
384 strcat (help_command, " ) &");
385 system (help_command);
391 activate_menu_cb (Widget button, XtPointer client_data, XtPointer ignored)
393 run_cmd (XtParent (button), XA_ACTIVATE, 0);
398 lock_menu_cb (Widget button, XtPointer client_data, XtPointer ignored)
400 run_cmd (XtParent (button), XA_LOCK, 0);
405 kill_menu_cb (Widget button, XtPointer client_data, XtPointer ignored)
407 run_cmd (XtParent (button), XA_EXIT, 0);
412 restart_menu_cb (Widget button, XtPointer client_data, XtPointer ignored)
415 run_cmd (XtParent (button), XA_RESTART, 0);
417 button = XtParent (button);
418 apply_changes_and_save (button);
419 xscreensaver_command (XtDisplay (button), XA_EXIT, 0, False, NULL);
421 system ("xscreensaver -nosplash &");
424 await_xscreensaver (button);
428 await_xscreensaver (Widget widget)
432 Display *dpy = XtDisplay (widget);
435 while (!rversion && (--countdown > 0))
437 /* Check for the version of the running xscreensaver... */
438 server_xscreensaver_version (dpy, &rversion, 0, 0);
440 /* If it's not there yet, wait a second... */
451 /* Timed out, no screensaver running. */
454 Bool root_p = (geteuid () == 0);
458 "The xscreensaver daemon did not start up properly.\n"
463 "You are running as root. This usually means that xscreensaver\n"
464 "was unable to contact your X server because access control is\n"
465 "turned on. Try running this command:\n"
467 " xhost +localhost\n"
469 "and then selecting `File / Restart Daemon'.\n"
471 "Note that turning off access control will allow anyone logged\n"
472 "on to this machine to access your screen, which might be\n"
473 "considered a security problem. Please read the xscreensaver\n"
474 "manual and FAQ for more information.\n"
476 "You shouldn't run X as root. Instead, you should log in as a\n"
477 "normal user, and `su' as necessary.");
479 strcat (buf, "Please check your $PATH and permissions.");
481 warning_dialog (XtParent (widget), buf, 1);
486 static int _selected_hack_number = -1;
489 selected_hack_number (Widget toplevel)
491 return _selected_hack_number;
496 demo_write_init_file (Widget widget, saver_preferences *p)
498 if (!write_init_file (p, short_version, False))
502 const char *f = init_file_name();
504 warning_dialog (widget,
505 "Error:\n\nCouldn't determine init file name!\n",
509 char *b = (char *) malloc (strlen(f) + 1024);
510 sprintf (b, "Error:\n\nCouldn't write %s\n", f);
511 warning_dialog (widget, b, 100);
520 apply_changes_and_save (Widget widget)
522 prefs_pair *pair = global_prefs_pair;
523 saver_preferences *p = pair->a;
524 Widget list_widget = name_to_widget (widget, "list");
525 int which = selected_hack_number (widget);
527 Widget cmd = name_to_widget (widget, "cmdText");
528 Widget enabled = name_to_widget (widget, "enabled");
530 Widget vis = name_to_widget (widget, "combo");
531 # ifdef HAVE_XMCOMBOBOX
533 # else /* !HAVE_XMCOMBOBOX */
534 Widget menu = 0, *kids = 0, selected_item = 0;
537 # endif /* !HAVE_XMCOMBOBOX */
539 Bool enabled_p = False;
540 const char *visual = 0;
541 const char *command = 0;
546 if (which < 0) return -1;
548 # ifdef HAVE_XMCOMBOBOX
549 XtVaGetValues (vis, XmNtextField, &text, 0);
551 /* If we can't get at the text field of this combo box, we're screwed. */
553 XtVaGetValues (text, XmNvalue, &visual, 0);
555 # else /* !HAVE_XMCOMBOBOX */
556 XtVaGetValues (vis, XmNsubMenuId, &menu, 0);
557 XtVaGetValues (menu, XmNnumChildren, &nkids, XmNchildren, &kids, 0);
558 XtVaGetValues (menu, XmNmenuHistory, &selected_item, 0);
560 for (i = 0; i < nkids; i++)
561 if (kids[i] == selected_item)
564 visual = visual_menu[i];
565 # endif /* !HAVE_XMCOMBOBOX */
567 XtVaGetValues (enabled, XmNset, &enabled_p, 0);
568 XtVaGetValues (cmd, XtNvalue, &command, 0);
570 if (maybe_reload_init_file (widget, pair) != 0)
573 /* Sanity-check and canonicalize whatever the user typed into the combo box.
575 if (!strcasecmp (visual, "")) visual = "";
576 else if (!strcasecmp (visual, "any")) visual = "";
577 else if (!strcasecmp (visual, "default")) visual = "Default";
578 else if (!strcasecmp (visual, "default-n")) visual = "Default-N";
579 else if (!strcasecmp (visual, "default-i")) visual = "Default-I";
580 else if (!strcasecmp (visual, "best")) visual = "Best";
581 else if (!strcasecmp (visual, "mono")) visual = "Mono";
582 else if (!strcasecmp (visual, "monochrome")) visual = "Mono";
583 else if (!strcasecmp (visual, "gray")) visual = "Gray";
584 else if (!strcasecmp (visual, "grey")) visual = "Gray";
585 else if (!strcasecmp (visual, "color")) visual = "Color";
586 else if (!strcasecmp (visual, "gl")) visual = "GL";
587 else if (!strcasecmp (visual, "staticgray")) visual = "StaticGray";
588 else if (!strcasecmp (visual, "staticcolor")) visual = "StaticColor";
589 else if (!strcasecmp (visual, "truecolor")) visual = "TrueColor";
590 else if (!strcasecmp (visual, "grayscale")) visual = "GrayScale";
591 else if (!strcasecmp (visual, "greyscale")) visual = "GrayScale";
592 else if (!strcasecmp (visual, "pseudocolor")) visual = "PseudoColor";
593 else if (!strcasecmp (visual, "directcolor")) visual = "DirectColor";
594 else if (1 == sscanf (visual, " %ld %c", &id, &c)) ;
595 else if (1 == sscanf (visual, " 0x%lx %c", &id, &c)) ;
598 XBell (XtDisplay (widget), 0); /* unparsable */
600 /* #### gtk_entry_set_text (GTK_ENTRY (GTK_COMBO (vis)->entry), "Any");*/
603 ensure_selected_item_visible (list_widget);
605 if (!p->screenhacks[which]->visual)
606 p->screenhacks[which]->visual = strdup ("");
607 if (!p->screenhacks[which]->command)
608 p->screenhacks[which]->command = strdup ("");
610 if (p->screenhacks[which]->enabled_p != enabled_p ||
611 !!strcasecmp (p->screenhacks[which]->visual, visual) ||
612 !!strcasecmp (p->screenhacks[which]->command, command))
614 /* Something was changed -- store results into the struct,
617 free (p->screenhacks[which]->visual);
618 free (p->screenhacks[which]->command);
619 p->screenhacks[which]->visual = strdup (visual);
620 p->screenhacks[which]->command = strdup (command);
621 p->screenhacks[which]->enabled_p = enabled_p;
623 return demo_write_init_file (widget, p);
626 /* No changes made */
631 run_this_cb (Widget button, XtPointer client_data, XtPointer ignored)
633 int which = selected_hack_number (XtParent (button));
634 if (which < 0) return;
635 if (0 == apply_changes_and_save (XtParent (button)))
636 run_hack (XtParent (button), which, True);
641 manual_cb (Widget button, XtPointer client_data, XtPointer ignored)
643 prefs_pair *pair = (prefs_pair *) client_data;
644 saver_preferences *p = pair->a;
645 Widget list_widget = name_to_widget (button, "list");
646 int which = selected_hack_number (button);
647 char *name, *name2, *cmd, *s;
648 if (which < 0) return;
649 apply_changes_and_save (button);
650 ensure_selected_item_visible (list_widget);
652 name = strdup (p->screenhacks[which]->command);
654 while (isspace (*name2)) name2++;
656 while (*s && !isspace (*s)) s++;
658 s = strrchr (name2, '/');
661 cmd = get_string_resource ("manualCommand", "ManualCommand");
664 char *cmd2 = (char *) malloc (strlen (cmd) + strlen (name2) + 100);
666 sprintf (cmd2 + strlen (cmd2),
668 name2, name2, name2, name2);
669 strcat (cmd2, " ) &");
675 warning_dialog (XtParent (button),
676 "Error:\n\nno `manualCommand' resource set.",
685 run_next_cb (Widget button, XtPointer client_data, XtPointer ignored)
687 prefs_pair *pair = (prefs_pair *) client_data;
688 saver_preferences *p = pair->a;
690 Widget list_widget = name_to_widget (button, "list");
691 int which = selected_hack_number (button);
693 button = XtParent (button);
700 if (which >= p->screenhacks_count)
703 apply_changes_and_save (button);
705 XmListDeselectAllItems (list_widget); /* LessTif lossage */
706 XmListSelectPos (list_widget, which+1, True);
708 ensure_selected_item_visible (list_widget);
709 populate_demo_window (button, which, pair);
710 run_hack (button, which, False);
715 run_prev_cb (Widget button, XtPointer client_data, XtPointer ignored)
717 prefs_pair *pair = (prefs_pair *) client_data;
718 saver_preferences *p = pair->a;
720 Widget list_widget = name_to_widget (button, "list");
721 int which = selected_hack_number (button);
723 button = XtParent (button);
726 which = p->screenhacks_count - 1;
731 which = p->screenhacks_count - 1;
733 apply_changes_and_save (button);
735 XmListDeselectAllItems (list_widget); /* LessTif lossage */
736 XmListSelectPos (list_widget, which+1, True);
738 ensure_selected_item_visible (list_widget);
739 populate_demo_window (button, which, pair);
740 run_hack (button, which, False);
744 /* Helper for the text fields that contain time specifications:
745 this parses the text, and does error checking.
748 hack_time_text (Widget button, const char *line, Time *store, Bool sec_p)
753 value = parse_time ((char *) line, sec_p, True);
754 value *= 1000; /* Time measures in microseconds */
760 "Unparsable time format: \"%s\"\n",
762 warning_dialog (XtParent (button), b, 100);
771 prefs_ok_cb (Widget button, XtPointer client_data, XtPointer ignored)
773 prefs_pair *pair = (prefs_pair *) client_data;
775 saver_preferences *p = pair->a;
776 saver_preferences *p2 = pair->b;
777 Bool changed = False;
780 button = XtParent (button);
782 # define SECONDS(field, name) \
784 XtVaGetValues (name_to_widget (button, (name)), XtNvalue, &v, 0); \
785 hack_time_text (button, v, (field), True)
787 # define MINUTES(field, name) \
789 XtVaGetValues (name_to_widget (button, (name)), XtNvalue, &v, 0); \
790 hack_time_text (button, v, (field), False)
792 # define INTEGER(field, name) do { \
793 unsigned int value; \
795 XtVaGetValues (name_to_widget (button, (name)), XtNvalue, &v, 0); \
798 else if (sscanf (v, "%u%c", &value, &c) != 1) \
801 sprintf (b, "Error:\n\n" "Not an integer: \"%s\"\n", v); \
802 warning_dialog (XtParent (button), b, 100); \
808 # define CHECKBOX(field, name) \
809 XtVaGetValues (name_to_widget (button, (name)), XmNset, &field, 0)
811 MINUTES (&p2->timeout, "timeoutText");
812 MINUTES (&p2->cycle, "cycleText");
813 SECONDS (&p2->fade_seconds, "fadeSecondsText");
814 INTEGER (&p2->fade_ticks, "fadeTicksText");
815 MINUTES (&p2->lock_timeout, "lockText");
816 SECONDS (&p2->passwd_timeout, "passwdText");
817 CHECKBOX (p2->verbose_p, "verboseToggle");
818 CHECKBOX (p2->install_cmap_p, "cmapToggle");
819 CHECKBOX (p2->fade_p, "fadeToggle");
820 CHECKBOX (p2->unfade_p, "unfadeToggle");
821 CHECKBOX (p2->lock_p, "lockToggle");
828 # define COPY(field) \
829 if (p->field != p2->field) changed = True; \
835 COPY(passwd_timeout);
839 COPY(install_cmap_p);
845 populate_prefs_page (button, pair);
848 demo_write_init_file (button, p);
853 prefs_cancel_cb (Widget button, XtPointer client_data, XtPointer ignored)
855 prefs_pair *pair = (prefs_pair *) client_data;
858 populate_prefs_page (XtParent (button), pair);
863 list_select_cb (Widget list, XtPointer client_data, XtPointer call_data)
865 prefs_pair *pair = (prefs_pair *) client_data;
867 XmListCallbackStruct *lcb = (XmListCallbackStruct *) call_data;
868 int which = lcb->item_position - 1;
870 apply_changes_and_save (list);
871 populate_demo_window (list, which, pair);
873 if (lcb->reason == XmCR_DEFAULT_ACTION && which >= 0)
874 run_hack (list, which, True);
878 /* Populating the various widgets
882 /* Formats a `Time' into "H:MM:SS". (Time is microseconds.)
885 format_time (char *buf, Time time)
888 unsigned int h = 0, m = 0;
899 sprintf (buf, "%u:%02u:%02u", h, m, s);
903 /* Finds the number of the last hack to run, and makes that item be
907 scroll_to_current_hack (Widget toplevel, prefs_pair *pair)
911 unsigned long nitems, bytesafter;
913 Display *dpy = XtDisplay (toplevel);
917 if (XGetWindowProperty (dpy, RootWindow (dpy, 0), /* always screen #0 */
918 XA_SCREENSAVER_STATUS,
919 0, 3, False, XA_INTEGER,
920 &type, &format, &nitems, &bytesafter,
921 (unsigned char **) &data)
923 && type == XA_INTEGER
926 which = (int) data[2] - 1;
928 if (data) free (data);
933 list = name_to_widget (toplevel, "list");
934 apply_changes_and_save (toplevel);
936 XmListDeselectAllItems (list); /* LessTif lossage */
937 XmListSelectPos (list, which+1, True);
939 ensure_selected_item_visible (list);
940 populate_demo_window (toplevel, which, pair);
946 populate_hack_list (Widget toplevel, prefs_pair *pair)
948 saver_preferences *p = pair->a;
949 Widget list = name_to_widget (toplevel, "list");
950 screenhack **hacks = p->screenhacks;
953 for (h = hacks; *h; h++)
955 char *pretty_name = (h[0]->name
956 ? strdup (h[0]->name)
957 : make_hack_name (h[0]->command));
959 XmString xmstr = XmStringCreate (pretty_name, XmSTRING_DEFAULT_CHARSET);
960 XmListAddItem (list, xmstr, 0);
961 XmStringFree (xmstr);
964 XtAddCallback (list, XmNbrowseSelectionCallback, list_select_cb, pair);
965 XtAddCallback (list, XmNdefaultActionCallback, list_select_cb, pair);
970 populate_prefs_page (Widget top, prefs_pair *pair)
972 saver_preferences *p = pair->a;
975 format_time (s, p->timeout);
976 XtVaSetValues (name_to_widget (top, "timeoutText"), XmNvalue, s, 0);
977 format_time (s, p->cycle);
978 XtVaSetValues (name_to_widget (top, "cycleText"), XmNvalue, s, 0);
979 format_time (s, p->lock_timeout);
980 XtVaSetValues (name_to_widget (top, "lockText"), XmNvalue, s, 0);
981 format_time (s, p->passwd_timeout);
982 XtVaSetValues (name_to_widget (top, "passwdText"), XmNvalue, s, 0);
983 format_time (s, p->fade_seconds);
984 XtVaSetValues (name_to_widget (top, "fadeSecondsText"), XmNvalue, s, 0);
985 sprintf (s, "%u", p->fade_ticks);
986 XtVaSetValues (name_to_widget (top, "fadeTicksText"), XmNvalue, s, 0);
988 XtVaSetValues (name_to_widget (top, "verboseToggle"),
989 XmNset, p->verbose_p, 0);
990 XtVaSetValues (name_to_widget (top, "cmapToggle"),
991 XmNset, p->install_cmap_p, 0);
992 XtVaSetValues (name_to_widget (top, "fadeToggle"),
993 XmNset, p->fade_p, 0);
994 XtVaSetValues (name_to_widget (top, "unfadeToggle"),
995 XmNset, p->unfade_p, 0);
996 XtVaSetValues (name_to_widget (top, "lockToggle"),
997 XmNset, p->lock_p, 0);
1001 Bool found_any_writable_cells = False;
1002 Display *dpy = XtDisplay (top);
1003 int nscreens = ScreenCount(dpy);
1005 for (i = 0; i < nscreens; i++)
1007 Screen *s = ScreenOfDisplay (dpy, i);
1008 if (has_writable_cells (s, DefaultVisualOfScreen (s)))
1010 found_any_writable_cells = True;
1015 #ifdef HAVE_XF86VMODE_GAMMA
1016 found_any_writable_cells = True; /* if we can gamma fade, go for it */
1019 XtVaSetValues (name_to_widget (top, "fadeSecondsLabel"), XtNsensitive,
1020 found_any_writable_cells, 0);
1021 XtVaSetValues (name_to_widget (top, "fadeTicksLabel"), XtNsensitive,
1022 found_any_writable_cells, 0);
1023 XtVaSetValues (name_to_widget (top, "fadeSecondsText"), XtNsensitive,
1024 found_any_writable_cells, 0);
1025 XtVaSetValues (name_to_widget (top, "fadeTicksText"), XtNsensitive,
1026 found_any_writable_cells, 0);
1027 XtVaSetValues (name_to_widget (top, "cmapToggle"), XtNsensitive,
1028 found_any_writable_cells, 0);
1029 XtVaSetValues (name_to_widget (top, "fadeToggle"), XtNsensitive,
1030 found_any_writable_cells, 0);
1031 XtVaSetValues (name_to_widget (top, "unfadeToggle"), XtNsensitive,
1032 found_any_writable_cells, 0);
1038 sensitize_demo_widgets (Widget toplevel, Bool sensitive_p)
1040 const char *names[] = { "cmdLabel", "cmdText", "enabled",
1041 "visLabel", "combo", "demo", "man" };
1043 for (i = 0; i < sizeof(names)/countof(*names); i++)
1045 Widget w = name_to_widget (toplevel, names[i]);
1046 XtVaSetValues (w, XtNsensitive, sensitive_p, 0);
1049 /* I don't know how to handle these yet... */
1051 const char *names2[] = { "cut", "copy", "paste" };
1052 for (i = 0; i < sizeof(names2)/countof(*names2); i++)
1054 Widget w = name_to_widget (toplevel, names2[i]);
1055 XtVaSetValues (w, XtNsensitive, FALSE, 0);
1062 /* Pixmaps for the up and down arrow buttons (yeah, this is sleazy...)
1067 static char *up_arrow_xpm[] = {
1069 " c None s background",
1091 static char *down_arrow_xpm[] = {
1093 " c None s background",
1115 #endif /* HAVE_XPM */
1119 pixmapify_buttons (Widget toplevel)
1123 Display *dpy = XtDisplay (toplevel);
1124 Window window = XtWindow (toplevel);
1125 XWindowAttributes xgwa;
1126 XpmAttributes xpmattrs;
1127 Pixmap up_pixmap = 0, down_pixmap = 0;
1129 Widget up = name_to_widget (toplevel, "up");
1130 Widget dn = name_to_widget (toplevel, "down");
1131 # ifdef XpmColorSymbols
1133 XpmColorSymbol symbols[2];
1137 XGetWindowAttributes (dpy, window, &xgwa);
1139 xpmattrs.valuemask = 0;
1141 # ifdef XpmColorSymbols
1142 symbols[0].name = "background";
1143 symbols[0].pixel = 0;
1144 symbols[1].name = 0;
1145 XtVaGetValues (up, XmNbackground, &xc, 0);
1146 XQueryColor (dpy, xgwa.colormap, &xc);
1147 sprintf (color, "#%04X%04X%04X", xc.red, xc.green, xc.blue);
1148 symbols[0].value = color;
1149 symbols[0].pixel = xc.pixel;
1151 xpmattrs.valuemask |= XpmColorSymbols;
1152 xpmattrs.colorsymbols = symbols;
1153 xpmattrs.numsymbols = 1;
1156 # ifdef XpmCloseness
1157 xpmattrs.valuemask |= XpmCloseness;
1158 xpmattrs.closeness = 40000;
1161 xpmattrs.valuemask |= XpmVisual;
1162 xpmattrs.visual = xgwa.visual;
1165 xpmattrs.valuemask |= XpmDepth;
1166 xpmattrs.depth = xgwa.depth;
1169 xpmattrs.valuemask |= XpmColormap;
1170 xpmattrs.colormap = xgwa.colormap;
1173 result = XpmCreatePixmapFromData(dpy, window, up_arrow_xpm,
1174 &up_pixmap, 0 /* mask */, &xpmattrs);
1175 if (!up_pixmap || (result != XpmSuccess && result != XpmColorError))
1177 fprintf (stderr, "%s: Can't load pixmaps\n", progname);
1181 result = XpmCreatePixmapFromData(dpy, window, down_arrow_xpm,
1182 &down_pixmap, 0 /* mask */, &xpmattrs);
1183 if (!down_pixmap || (result != XpmSuccess && result != XpmColorError))
1185 fprintf (stderr, "%s: Can't load pixmaps\n", progname);
1189 XtVaSetValues (up, XmNlabelType, XmPIXMAP, XmNlabelPixmap, up_pixmap, 0);
1190 XtVaSetValues (dn, XmNlabelType, XmPIXMAP, XmNlabelPixmap, down_pixmap, 0);
1192 #endif /* HAVE_XPM */
1198 get_hack_blurb (screenhack *hack)
1201 char *prog_name = strdup (hack->command);
1202 char *pretty_name = (hack->name
1203 ? strdup (hack->name)
1204 : make_hack_name (hack->command));
1205 char doc_name[255], doc_class[255];
1208 for (s = prog_name; *s && !isspace(*s); s++)
1211 s = strrchr (prog_name, '/');
1212 if (s) strcpy (prog_name, s+1);
1214 sprintf (doc_name, "hacks.%s.documentation", pretty_name);
1215 sprintf (doc_class, "hacks.%s.documentation", prog_name);
1219 doc_string = get_string_resource (doc_name, doc_class);
1222 for (s = doc_string; *s; s++)
1226 /* skip over whitespace at beginning of line */
1228 while (*s && (*s == ' ' || *s == '\t'))
1231 else if (*s == ' ' || *s == '\t')
1233 /* compress all other horizontal whitespace. */
1236 for (s2 = s; *s2 && (*s2 == ' ' || *s2 == '\t'); s2++)
1238 if (s2 > s) strcpy (s, s2);
1243 while (*s && isspace (*s)) /* Strip trailing whitespace */
1246 /* Delete whitespace at end of each line. */
1247 for (; s > doc_string; s--)
1248 if (*s == '\n' && (s[-1] == ' ' || s[-1] == '\t'))
1251 s2 > doc_string && (*s2 == ' ' || *s2 == '\t');
1255 if (s2 < s) strcpy (s2, s);
1259 /* Delete leading blank lines. */
1260 for (s = doc_string; *s == '\n'; s++)
1262 if (s > doc_string) strcpy (doc_string, s);
1266 static int doc_installed = 0;
1267 if (doc_installed == 0)
1269 if (get_boolean_resource ("hacks.documentation.isInstalled",
1270 "hacks.documentation.isInstalled"))
1276 if (doc_installed < 0)
1278 strdup ("Error:\n\n"
1279 "The documentation strings do not appear to be "
1280 "installed. This is probably because there is "
1281 "an \"XScreenSaver\" app-defaults file installed "
1282 "that is from an older version of the program. "
1283 "To fix this problem, delete that file, or "
1284 "install a current version (either will work.)");
1286 doc_string = strdup ("");
1294 populate_demo_window (Widget toplevel, int which, prefs_pair *pair)
1296 saver_preferences *p = pair->a;
1297 screenhack *hack = (which >= 0 ? p->screenhacks[which] : 0);
1298 Widget frameL = name_to_widget (toplevel, "frameLabel");
1299 Widget doc = name_to_widget (toplevel, "doc");
1300 Widget cmd = name_to_widget (toplevel, "cmdText");
1301 Widget enabled = name_to_widget (toplevel, "enabled");
1302 Widget vis = name_to_widget (toplevel, "combo");
1305 char *pretty_name = (hack
1307 ? strdup (hack->name)
1308 : make_hack_name (hack->command))
1310 char *doc_string = hack ? get_hack_blurb (hack) : 0;
1314 xmstr = XmStringCreate (pretty_name, XmSTRING_DEFAULT_CHARSET);
1315 XtVaSetValues (frameL, XmNlabelString, xmstr, 0);
1316 XmStringFree (xmstr);
1318 XtVaSetValues (doc, XmNvalue, doc_string, 0);
1319 XtVaSetValues (cmd, XmNvalue, (hack ? hack->command : ""), 0);
1321 XtVaSetValues (enabled, XmNset, (hack ? hack->enabled_p : False), 0);
1324 if (hack && hack->visual && *hack->visual)
1325 for (i = 0; visual_menu[i]; i++)
1326 if (!strcasecmp (hack->visual, visual_menu[i]))
1328 if (!visual_menu[i]) i = -1;
1331 # ifdef HAVE_XMCOMBOBOX
1333 XtVaGetValues (vis, XmNtextField, &text, 0);
1334 XtVaSetValues (vis, XmNselectedPosition, i, 0);
1336 XtVaSetValues (text, XmNvalue, hack->visual, 0);
1337 # else /* !HAVE_XMCOMBOBOX */
1342 XtVaGetValues (vis, XmNsubMenuId, &menu, 0);
1343 if (!menu) abort ();
1344 XtVaGetValues (menu, XmNnumChildren, &nkids, XmNchildren, &kids, 0);
1347 XtVaSetValues (vis, XmNmenuHistory, kids[i], 0);
1348 # endif /* !HAVE_XMCOMBOBOX */
1351 sensitize_demo_widgets (toplevel, (hack ? True : False));
1353 if (pretty_name) free (pretty_name);
1354 if (doc_string) free (doc_string);
1356 _selected_hack_number = which;
1362 maybe_reload_init_file (Widget widget, prefs_pair *pair)
1365 saver_preferences *p = pair->a;
1367 static Bool reentrant_lock = False;
1368 if (reentrant_lock) return 0;
1369 reentrant_lock = True;
1371 if (init_file_changed_p (p))
1373 const char *f = init_file_name();
1378 if (!f || !*f) return 0;
1379 b = (char *) malloc (strlen(f) + 1024);
1382 "file \"%s\" has changed, reloading.\n",
1384 warning_dialog (widget, b, 100);
1389 which = selected_hack_number (widget);
1390 list = name_to_widget (widget, "list");
1392 XtVaSetValues (list, XmNitemCount, 0, 0);
1394 populate_hack_list (widget, pair);
1396 XmListDeselectAllItems (list); /* LessTif lossage */
1397 XmListSelectPos (list, which+1, True);
1399 populate_prefs_page (widget, pair);
1400 populate_demo_window (widget, which, pair);
1401 ensure_selected_item_visible (list);
1406 reentrant_lock = False;
1412 /* Attach all callback functions to widgets
1416 add_callbacks (Widget toplevel, prefs_pair *pair)
1420 # define CB(NAME,FN) \
1421 w = name_to_widget (toplevel, (NAME)); \
1422 XtAddCallback (w, XmNactivateCallback, (FN), pair)
1424 CB ("blank", activate_menu_cb);
1425 CB ("lock", lock_menu_cb);
1426 CB ("kill", kill_menu_cb);
1427 CB ("restart", restart_menu_cb);
1428 CB ("exit", exit_menu_cb);
1430 CB ("cut", cut_menu_cb);
1431 CB ("copy", copy_menu_cb);
1432 CB ("paste", paste_menu_cb);
1434 CB ("about", about_menu_cb);
1435 CB ("docMenu", doc_menu_cb);
1437 CB ("down", run_next_cb);
1438 CB ("up", run_prev_cb);
1439 CB ("demo", run_this_cb);
1440 CB ("man", manual_cb);
1442 CB ("preferencesForm.Cancel", prefs_cancel_cb);
1443 CB ("preferencesForm.OK", prefs_ok_cb);
1450 sanity_check_resources (Widget toplevel)
1452 const char *names[] = { "demoTab", "optionsTab", "cmdLabel", "visLabel",
1453 "enabled", "demo", "man", "timeoutLabel",
1454 "cycleLabel", "fadeSecondsLabel", "fadeTicksLabel",
1455 "lockLabel", "passwdLabel" };
1457 for (i = 0; i < sizeof(names)/countof(*names); i++)
1459 Widget w = name_to_widget (toplevel, names[i]);
1460 const char *name = XtName(w);
1463 XtVaGetValues (w, XmNlabelString, &xm, 0);
1464 if (xm) XmStringGetLtoR (xm, XmSTRING_DEFAULT_CHARSET, &label);
1465 if (w && (!label || !strcmp (name, label)))
1467 xm = XmStringCreate ("ERROR", XmSTRING_DEFAULT_CHARSET);
1468 XtVaSetValues (w, XmNlabelString, xm, 0);
1473 /* Set certain buttons to be the same size (the max of the set.)
1476 hack_button_sizes (Widget toplevel)
1478 Widget demo = name_to_widget (toplevel, "demo");
1479 Widget man = name_to_widget (toplevel, "man");
1480 Widget ok = name_to_widget (toplevel, "OK");
1481 Widget can = name_to_widget (toplevel, "Cancel");
1482 Widget up = name_to_widget (toplevel, "up");
1483 Widget down = name_to_widget (toplevel, "down");
1486 XtVaGetValues (demo, XmNwidth, &w1, 0);
1487 XtVaGetValues (man, XmNwidth, &w2, 0);
1488 XtVaSetValues ((w1 > w2 ? man : demo), XmNwidth, (w1 > w2 ? w1 : w2), 0);
1490 XtVaGetValues (ok, XmNwidth, &w1, 0);
1491 XtVaGetValues (can, XmNwidth, &w2, 0);
1492 XtVaSetValues ((w1 > w2 ? can : ok), XmNwidth, (w1 > w2 ? w1 : w2), 0);
1494 XtVaGetValues (up, XmNwidth, &w1, 0);
1495 XtVaGetValues (down, XmNwidth, &w2, 0);
1496 XtVaSetValues ((w1 > w2 ? down : up), XmNwidth, (w1 > w2 ? w1 : w2), 0);
1502 /* The main demo-mode command loop.
1507 mapper (XrmDatabase *db, XrmBindingList bindings, XrmQuarkList quarks,
1508 XrmRepresentation *type, XrmValue *value, XPointer closure)
1511 for (i = 0; quarks[i]; i++)
1513 if (bindings[i] == XrmBindTightly)
1514 fprintf (stderr, (i == 0 ? "" : "."));
1515 else if (bindings[i] == XrmBindLoosely)
1516 fprintf (stderr, "*");
1518 fprintf (stderr, " ??? ");
1519 fprintf(stderr, "%s", XrmQuarkToString (quarks[i]));
1522 fprintf (stderr, ": %s\n", (char *) value->addr);
1530 the_network_is_not_the_computer (Widget parent)
1532 Display *dpy = XtDisplay (parent);
1533 char *rversion, *ruser, *rhost;
1534 char *luser, *lhost;
1536 struct passwd *p = getpwuid (getuid ());
1537 const char *d = DisplayString (dpy);
1539 # if defined(HAVE_UNAME)
1541 if (uname (&uts) < 0)
1542 lhost = "<UNKNOWN>";
1544 lhost = uts.nodename;
1546 strcpy (lhost, getenv("SYS$NODE"));
1547 # else /* !HAVE_UNAME && !VMS */
1548 strcat (lhost, "<UNKNOWN>");
1549 # endif /* !HAVE_UNAME && !VMS */
1551 if (p && p->pw_name)
1556 server_xscreensaver_version (dpy, &rversion, &ruser, &rhost);
1558 /* Make a buffer that's big enough for a number of copies of all the
1559 strings, plus some. */
1560 msg = (char *) malloc (10 * ((rversion ? strlen(rversion) : 0) +
1561 (ruser ? strlen(ruser) : 0) +
1562 (rhost ? strlen(rhost) : 0) +
1569 if (!rversion || !*rversion)
1573 "The XScreenSaver daemon doesn't seem to be running\n"
1574 "on display \"%s\". You can launch it by selecting\n"
1575 "`Restart Daemon' from the File menu, or by typing\n"
1576 "\"xscreensaver &\" in a shell.",
1579 else if (p && ruser && *ruser && !!strcmp (ruser, p->pw_name))
1581 /* Warn that the two processes are running as different users.
1585 "%s is running as user \"%s\" on host \"%s\".\n"
1586 "But the xscreensaver managing display \"%s\"\n"
1587 "is running as user \"%s\" on host \"%s\".\n"
1589 "Since they are different users, they won't be reading/writing\n"
1590 "the same ~/.xscreensaver file, so %s isn't\n"
1591 "going to work right.\n"
1593 "Either re-run %s as \"%s\", or re-run\n"
1594 "xscreensaver as \"%s\" (which you can do by\n"
1595 "selecting `Restart Daemon' from the File menu.)\n",
1596 progname, luser, lhost,
1598 (ruser ? ruser : "???"), (rhost ? rhost : "???"),
1600 progname, (ruser ? ruser : "???"),
1603 else if (rhost && *rhost && !!strcmp (rhost, lhost))
1605 /* Warn that the two processes are running on different hosts.
1609 "%s is running as user \"%s\" on host \"%s\".\n"
1610 "But the xscreensaver managing display \"%s\"\n"
1611 "is running as user \"%s\" on host \"%s\".\n"
1613 "If those two machines don't share a file system (that is,\n"
1614 "if they don't see the same ~%s/.xscreensaver file) then\n"
1615 "%s won't work right.\n"
1617 "You can restart the daemon on \"%s\" as \"%s\" by\n"
1618 "selecting `Restart Daemon' from the File menu.)",
1619 progname, luser, lhost,
1621 (ruser ? ruser : "???"), (rhost ? rhost : "???"),
1626 else if (!!strcmp (rversion, short_version))
1628 /* Warn that the version numbers don't match.
1632 "This is %s version %s.\n"
1633 "But the xscreensaver managing display \"%s\"\n"
1634 "is version %s. This could cause problems.",
1635 progname, short_version,
1642 warning_dialog (parent, msg, 1);
1648 /* We use this error handler so that X errors are preceeded by the name
1649 of the program that generated them.
1652 demo_ehandler (Display *dpy, XErrorEvent *error)
1654 fprintf (stderr, "\nX error in %s:\n", progname);
1655 if (XmuPrintDefaultErrorMessage (dpy, error, stderr))
1658 fprintf (stderr, " (nonfatal.)\n");
1664 static char *defaults[] = {
1665 #include "XScreenSaver_ad.h"
1671 main (int argc, char **argv)
1674 prefs_pair Pair, *pair;
1675 saver_preferences P, P2, *p, *p2;
1679 Widget toplevel_shell, dialog;
1680 char *real_progname = argv[0];
1683 s = strrchr (real_progname, '/');
1684 if (s) real_progname = s+1;
1691 memset (p, 0, sizeof (*p));
1692 memset (p2, 0, sizeof (*p2));
1694 global_prefs_pair = pair;
1696 progname = real_progname;
1698 /* We must read exactly the same resources as xscreensaver.
1699 That means we must have both the same progclass *and* progname,
1700 at least as far as the resource database is concerned. So,
1701 put "xscreensaver" in argv[0] while initializing Xt.
1703 argv[0] = "xscreensaver";
1707 toplevel_shell = XtAppInitialize (&app, progclass, 0, 0, &argc, argv,
1710 dpy = XtDisplay (toplevel_shell);
1711 db = XtDatabase (dpy);
1712 XtGetApplicationNameAndClass (dpy, &progname, &progclass);
1713 XSetErrorHandler (demo_ehandler);
1715 /* Complain about unrecognized command-line arguments.
1717 for (i = 1; i < argc; i++)
1720 if (s[0] == '-' && s[1] == '-')
1722 if (!strcmp (s, "-prefs"))
1726 fprintf (stderr, "usage: %s [ -display dpy-string ] [ -prefs ]\n",
1732 short_version = (char *) malloc (5);
1733 memcpy (short_version, screensaver_id + 17, 4);
1734 short_version [4] = 0;
1736 /* Load the init file, which may end up consulting the X resource database
1737 and the site-wide app-defaults file. Note that at this point, it's
1738 important that `progname' be "xscreensaver", rather than whatever
1745 /* Now that Xt has been initialized, and the resources have been read,
1746 we can set our `progname' variable to something more in line with
1749 progname = real_progname;
1754 XrmName name = { 0 };
1755 XrmClass class = { 0 };
1757 XrmEnumerateDatabase (db, &name, &class, XrmEnumAllLevels, mapper,
1763 /* Intern the atoms that xscreensaver_command() needs.
1765 XA_VROOT = XInternAtom (dpy, "__SWM_VROOT", False);
1766 XA_SCREENSAVER = XInternAtom (dpy, "SCREENSAVER", False);
1767 XA_SCREENSAVER_VERSION = XInternAtom (dpy, "_SCREENSAVER_VERSION",False);
1768 XA_SCREENSAVER_STATUS = XInternAtom (dpy, "_SCREENSAVER_STATUS", False);
1769 XA_SCREENSAVER_ID = XInternAtom (dpy, "_SCREENSAVER_ID", False);
1770 XA_SCREENSAVER_RESPONSE = XInternAtom (dpy, "_SCREENSAVER_RESPONSE", False);
1771 XA_SELECT = XInternAtom (dpy, "SELECT", False);
1772 XA_DEMO = XInternAtom (dpy, "DEMO", False);
1773 XA_ACTIVATE = XInternAtom (dpy, "ACTIVATE", False);
1774 XA_BLANK = XInternAtom (dpy, "BLANK", False);
1775 XA_LOCK = XInternAtom (dpy, "LOCK", False);
1776 XA_EXIT = XInternAtom (dpy, "EXIT", False);
1777 XA_RESTART = XInternAtom (dpy, "RESTART", False);
1779 /* Create the window and all its widgets.
1781 dialog = create_xscreensaver_demo (toplevel_shell);
1783 /* Set the window's title. */
1786 char *v = (char *) strdup(strchr(screensaver_id, ' '));
1787 char *s1, *s2, *s3, *s4;
1788 s1 = (char *) strchr(v, ' '); s1++;
1789 s2 = (char *) strchr(s1, ' ');
1790 s3 = (char *) strchr(v, '('); s3++;
1791 s4 = (char *) strchr(s3, ')');
1794 sprintf (title, "%.50s %.50s, %.50s", progclass, s1, s3);
1795 XtVaSetValues (toplevel_shell, XtNtitle, title, 0);
1799 sanity_check_resources (toplevel_shell);
1800 add_callbacks (toplevel_shell, pair);
1801 populate_hack_list (toplevel_shell, pair);
1802 populate_prefs_page (toplevel_shell, pair);
1803 sensitize_demo_widgets (toplevel_shell, False);
1804 scroll_to_current_hack (toplevel_shell, pair);
1806 XtManageChild (dialog);
1807 XtRealizeWidget(toplevel_shell);
1809 /* The next few calls must come after XtRealizeWidget(). */
1810 pixmapify_buttons (toplevel_shell);
1811 hack_button_sizes (toplevel_shell);
1812 ensure_selected_item_visible (name_to_widget (toplevel_shell, "list"));
1815 XtVaSetValues (toplevel_shell, XmNallowShellResize, False, 0);
1818 /* Handle the -prefs command-line argument. */
1821 Widget tabber = name_to_widget (toplevel_shell, "folder");
1822 Widget this_tab = name_to_widget (toplevel_shell, "optionsTab");
1823 Widget this_page = name_to_widget (toplevel_shell, "preferencesForm");
1826 if (!tabber) abort();
1828 XtVaGetValues (tabber, XmNnumChildren, &nkids, XmNchildren, &kids, 0);
1831 XtUnmanageChildren (kids, nkids);
1833 XtManageChild (this_page);
1835 XmProcessTraversal (this_tab, XmTRAVERSE_CURRENT);
1838 /* Issue any warnings about the running xscreensaver daemon. */
1839 the_network_is_not_the_computer (toplevel_shell);
1842 XtAppMainLoop (app);
1846 #endif /* HAVE_MOTIF -- whole file */