1 /* demo-Gtk-conf.c --- implements the dynamic configuration dialogs.
2 * xscreensaver, Copyright (c) 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 #if defined(HAVE_GTK) && defined(HAVE_XML) /* whole file */
29 #include <parser.h> /* XML */
33 #include "demo-Gtk-conf.h"
35 extern const char *blurb (void);
38 static gboolean debug_p = FALSE;
60 char *id; /* widget name */
61 char *label; /* heading label, or null */
63 /* command, fake, description, fakepreview, string, file
65 char *string; /* file name, description, whatever. */
69 char *low_label; /* label for the left side */
70 char *high_label; /* label for the right side */
71 float low; /* minimum value */
72 float high; /* maximum value */
73 float value; /* default value */
74 gboolean integer_p; /* whether the range is integral, or real */
75 char *arg; /* command-line option to set (substitute "%") */
76 gboolean invert_p; /* whether to flip the value and pretend the
77 range goes from hi-low instead of low-hi. */
79 /* boolean, select-option
81 char *arg_set; /* command-line option to set for "yes", or null */
82 char *arg_unset; /* command-line option to set for "no", or null */
83 char *test; /* #### no idea - enablement? */
98 static parameter *make_select_option (const char *file, xmlNodePtr);
99 static void make_parameter_widget (const char *filename,
100 parameter *, GtkWidget *, int *);
101 static void browse_button_cb (GtkButton *button, gpointer user_data);
104 /* Frees the parameter object and all strings and sub-parameters.
105 Does not destroy the widget, if any.
108 free_parameter (parameter *p)
111 if (p->id) free (p->id);
112 if (p->label) free (p->label);
113 if (p->string) free (p->string);
114 if (p->low_label) free (p->low_label);
115 if (p->high_label) free (p->high_label);
116 if (p->arg) free (p->arg);
117 if (p->arg_set) free (p->arg_set);
118 if (p->arg_unset) free (p->arg_unset);
119 if (p->test) free (p->test);
121 for (rest = p->options; rest; rest = rest->next)
123 free_parameter ((parameter *) rest->data);
125 for (rest = p->enable; rest; rest = rest->next)
127 free ((char *) rest->data);
130 if (p->enable) g_list_free (p->enable);
132 memset (p, ~0, sizeof(*p));
137 /* Debugging: dumps out a `parameter' structure.
141 describe_parameter (FILE *out, parameter *p)
146 case COMMAND: fprintf (out, "command"); break;
147 case FAKE: fprintf (out, "fake"); break;
148 case DESCRIPTION: fprintf (out, "_description"); break;
149 case FAKEPREVIEW: fprintf (out, "fakepreview"); break;
150 case STRING: fprintf (out, "string"); break;
151 case FILENAME: fprintf (out, "filename"); break;
152 case SLIDER: fprintf (out, "number type=\"slider\""); break;
153 case SPINBUTTON: fprintf (out, "number type=\"spinbutton\""); break;
154 case BOOLEAN: fprintf (out, "boolean"); break;
155 case SELECT: fprintf (out, "select"); break;
156 default: abort(); break;
158 if (p->id) fprintf (out, " id=\"%s\"", p->id);
159 if (p->label) fprintf (out, " _label=\"%s\"", p->label);
160 if (p->string && p->type != DESCRIPTION)
161 fprintf (out, " string=\"%s\"", p->string);
162 if (p->low_label) fprintf (out, " _low-label=\"%s\"", p->low_label);
163 if (p->high_label) fprintf (out, " _high-label=\"%s\"", p->high_label);
164 if (p->low) fprintf (out, " low=\"%.2f\"", p->low);
165 if (p->high) fprintf (out, " high=\"%.2f\"", p->high);
166 if (p->value) fprintf (out, " default=\"%.2f\"", p->value);
167 if (p->arg) fprintf (out, " arg=\"%s\"", p->arg);
168 if (p->invert_p) fprintf (out, " convert=\"invert\"");
169 if (p->arg_set) fprintf (out, " arg-set=\"%s\"", p->arg_set);
170 if (p->arg_unset) fprintf (out, " arg-unset=\"%s\"", p->arg_unset);
171 if (p->test) fprintf (out, " test=\"%s\"", p->test);
172 fprintf (out, ">\n");
174 if (p->type == SELECT)
177 for (opt = p->options; opt; opt = opt->next)
179 parameter *o = (parameter *) opt->data;
180 if (o->type != SELECT_OPTION) abort();
181 fprintf (out, " <option");
182 if (o->id) fprintf (out, " id=\"%s\"", o->id);
183 if (o->label) fprintf (out, " _label=\"%s\"", o->label);
184 if (o->arg_set) fprintf (out, " arg-set=\"%s\"", o->arg_set);
185 if (o->arg_unset) fprintf (out, " arg-unset=\"%s\"", o->arg_unset);
186 if (o->test) fprintf (out, " test=\"%s\"", o->test);
190 fprintf (out, " enable=\"");
191 for (e = o->enable; e; e = e->next)
192 fprintf (out, "%s%s", (char *) e->data, (e->next ? "," : ""));
195 fprintf (out, ">\n");
197 fprintf (out, "</select>\n");
199 else if (p->type == DESCRIPTION)
202 fprintf (out, " %s\n", p->string);
203 fprintf (out, "</_description>\n");
209 /* Like xmlGetProp() but parses a float out of the string.
210 If the number was expressed as a float and not an integer
211 (that is, the string contained a decimal point) then
212 `floatp' is set to TRUE. Otherwise, it is unchanged.
215 xml_get_float (xmlNodePtr node, const char *name, gboolean *floatpP)
217 const char *s = xmlGetProp (node, name);
220 if (!s || 1 != sscanf (s, "%f %c", &f, &c))
224 if (strchr (s, '.')) *floatpP = TRUE;
230 static void sanity_check_parameter (const char *filename,
231 const char *node_name,
234 /* Allocates and returns a new `parameter' object based on the
235 properties in the given XML node. Returns 0 if there's nothing
236 to create (comment, or unknown tag.)
239 make_parameter (const char *filename, xmlNodePtr node)
242 const char *name = node->name;
244 gboolean floatp = FALSE;
246 if (node->type == XML_COMMENT_NODE)
249 p = calloc (1, sizeof(*p));
252 else if (!strcmp (name, "command")) p->type = COMMAND;
253 else if (!strcmp (name, "fullcommand")) p->type = COMMAND;
254 else if (!strcmp (name, "_description")) p->type = DESCRIPTION;
255 else if (!strcmp (name, "fakepreview")) p->type = FAKEPREVIEW;
256 else if (!strcmp (name, "fake")) p->type = FAKE;
257 else if (!strcmp (name, "boolean")) p->type = BOOLEAN;
258 else if (!strcmp (name, "string")) p->type = STRING;
259 else if (!strcmp (name, "file")) p->type = FILENAME;
260 else if (!strcmp (name, "number")) p->type = SPINBUTTON;
261 else if (!strcmp (name, "select")) p->type = SELECT;
265 fprintf (stderr, "%s: WARNING: %s: unknown tag: \"%s\"\n",
266 blurb(), filename, name);
271 if (p->type == SPINBUTTON)
273 const char *type = xmlGetProp (node, "type");
274 if (!type || !strcmp (type, "spinbutton")) p->type = SPINBUTTON;
275 else if (!strcmp (type, "slider")) p->type = SLIDER;
279 fprintf (stderr, "%s: WARNING: %s: unknown %s type: \"%s\"\n",
280 blurb(), filename, name, type);
285 else if (p->type == DESCRIPTION)
288 node->childs->type == XML_TEXT_NODE &&
290 p->string = strdup (node->childs->content);
293 p->id = xmlGetProp (node, "id");
294 p->label = xmlGetProp (node, "_label");
295 p->low_label = xmlGetProp (node, "_low-label");
296 p->high_label = xmlGetProp (node, "_high-label");
297 p->low = xml_get_float (node, "low", &floatp);
298 p->high = xml_get_float (node, "high", &floatp);
299 p->value = xml_get_float (node, "default", &floatp);
300 p->integer_p = !floatp;
301 convert = xmlGetProp (node, "convert");
302 p->invert_p = (convert && !strcmp (convert, "invert"));
303 p->arg = xmlGetProp (node, "arg");
304 p->arg_set = xmlGetProp (node, "arg-set");
305 p->arg_unset = xmlGetProp (node, "arg-unset");
306 p->test = xmlGetProp (node, "test");
308 /* Check for missing decimal point */
311 (p->high != p->low) &&
312 (p->high - p->low) <= 1)
314 "%s: WARNING: %s: %s: range [%.1f, %.1f] shouldn't be integral!\n",
315 blurb(), filename, p->id,
318 if (p->type == SELECT)
321 for (kids = node->childs; kids; kids = kids->next)
323 parameter *s = make_select_option (filename, kids);
325 p->options = g_list_append (p->options, s);
329 sanity_check_parameter (filename, name, p);
335 /* Allocates and returns a new SELECT_OPTION `parameter' object based
336 on the properties in the given XML node. Returns 0 if there's nothing
337 to create (comment, or unknown tag.)
340 make_select_option (const char *filename, xmlNodePtr node)
342 if (node->type == XML_COMMENT_NODE)
344 else if (node->type != XML_ELEMENT_NODE)
348 "%s: WARNING: %s: %s: unexpected child tag type %d\n",
349 blurb(), filename, node->name, (int)node->type);
352 else if (strcmp (node->name, "option"))
356 "%s: WARNING: %s: %s: child not an option tag: \"%s\"\n",
357 blurb(), filename, node->name, node->name);
362 parameter *s = calloc (1, sizeof(*s));
365 s->type = SELECT_OPTION;
366 s->id = xmlGetProp (node, "id");
367 s->label = xmlGetProp (node, "_label");
368 s->arg_set = xmlGetProp (node, "arg-set");
369 s->arg_unset = xmlGetProp (node, "arg-unset");
370 s->test = xmlGetProp (node, "test");
371 enable = xmlGetProp (node, "enable");
375 enable = strdup (enable);
376 e = strtok (enable, ", ");
379 s->enable = g_list_append (s->enable, strdup (e));
380 e = strtok (0, ", ");
385 sanity_check_parameter (filename, node->name, s);
391 /* Rudimentary check to make sure someone hasn't typed "arg-set="
392 when they should have typed "arg=", etc.
395 sanity_check_parameter (const char *filename, const char *node_name,
413 memset (&allowed, 0, sizeof (allowed));
414 memset (&require, 0, sizeof (require));
425 allowed.string = TRUE;
432 allowed.label = TRUE;
433 require.label = TRUE;
440 allowed.label = TRUE;
447 allowed.label = TRUE;
448 allowed.low_label = TRUE;
449 allowed.high_label = TRUE;
453 /* require.low = TRUE; -- may be 0 */
455 /* require.high = TRUE; -- may be 0 */
456 allowed.value = TRUE;
457 /* require.value = TRUE; -- may be 0 */
458 allowed.invert_p = TRUE;
463 allowed.label = TRUE;
467 /* require.low = TRUE; -- may be 0 */
469 /* require.high = TRUE; -- may be 0 */
470 allowed.value = TRUE;
471 /* require.value = TRUE; -- may be 0 */
472 allowed.invert_p = TRUE;
477 allowed.label = TRUE;
478 allowed.arg_set = TRUE;
479 allowed.arg_unset = TRUE;
487 allowed.label = TRUE;
488 require.label = TRUE;
489 allowed.arg_set = TRUE;
497 fprintf (stderr, "%s: %s: " STR " in <%s%s id=\"%s\">\n", \
498 blurb(), filename, node_name, \
499 (!strcmp(node_name, "number") \
500 ? (p->type == SPINBUTTON ? " type=spinbutton" : " type=slider")\
502 (p->id ? p->id : ""))
503 # define CHECK(SLOT,NAME) \
504 if (p->SLOT && !allowed.SLOT) \
505 WARN ("\"" NAME "\" is not a valid option"); \
506 if (!p->SLOT && require.SLOT) \
507 WARN ("\"" NAME "\" is required")
510 CHECK (label, "_label");
511 CHECK (string, "(body text)");
512 CHECK (low_label, "_low-label");
513 CHECK (high_label, "_high-label");
515 CHECK (high, "high");
516 CHECK (value, "default");
518 CHECK (invert_p, "convert");
519 CHECK (arg_set, "arg-set");
520 CHECK (arg_unset, "arg-unset");
527 /* Helper for make_parameters()
530 make_parameters_1 (const char *filename, xmlNodePtr node,
531 GtkWidget *parent, int *row)
535 for (; node; node = node->next)
537 const char *name = node->name;
538 if (!strcmp (name, "hgroup") ||
539 !strcmp (name, "vgroup"))
541 GtkWidget *box = (*name == 'h'
542 ? gtk_hbox_new (FALSE, 0)
543 : gtk_vbox_new (FALSE, 0));
545 gtk_widget_show (box);
548 gtk_table_attach (GTK_TABLE (parent), box, 0, 3, *row, *row + 1,
551 gtk_box_pack_start (GTK_BOX (parent), box, FALSE, FALSE, 0);
556 list2 = make_parameters_1 (filename, node->childs, box, 0);
558 list = g_list_concat (list, list2);
562 parameter *p = make_parameter (filename, node);
565 list = g_list_append (list, p);
566 make_parameter_widget (filename, p, parent, row);
574 /* Calls make_parameter() and make_parameter_widget() on each relevant
575 tag in the XML tree. Also handles the "hgroup" and "vgroup" flags.
576 Returns a GList of `parameter' objects.
579 make_parameters (const char *filename, xmlNodePtr node, GtkWidget *parent)
582 for (; node; node = node->next)
584 if (node->type == XML_ELEMENT_NODE &&
585 !strcmp (node->name, "screensaver"))
586 return make_parameters_1 (filename, node->childs, parent, &row);
593 invert_range (gfloat low, gfloat high, gfloat value)
595 gfloat range = high-low;
596 gfloat off = value-low;
597 return (low + (range - off));
601 static GtkAdjustment *
602 make_adjustment (const char *filename, parameter *p)
604 float range = (p->high - p->low);
605 float value = (p->invert_p
606 ? invert_range (p->low, p->high, p->value)
608 gfloat si = (p->high - p->low) / 100;
609 gfloat pi = (p->high - p->low) / 10;
611 if (p->value < p->low || p->value > p->high)
613 if (debug_p && p->integer_p)
614 fprintf (stderr, "%s: WARNING: %s: %d is not in range [%d, %d]\n",
616 (int) p->value, (int) p->low, (int) p->high);
619 "%s: WARNING: %s: %.2f is not in range [%.2f, %.2f]\n",
620 blurb(), filename, p->value, p->low, p->high);
621 value = (value < p->low ? p->low : p->high);
624 else if (debug_p && p->value < 1000 && p->high >= 10000)
628 "%s: WARNING: %s: %d is suspicious for range [%d, %d]\n",
630 (int) p->value, (int) p->low, (int) p->high);
633 "%s: WARNING: %s: %.2f is suspicious for range [%.2f, %.2f]\n",
634 blurb(), filename, p->value, p->low, p->high);
640 si = (int) (si + 0.5);
641 pi = (int) (pi + 0.5);
645 if (range <= 500) si = 1;
647 return GTK_ADJUSTMENT (gtk_adjustment_new (value, p->low, p->high,
653 /* Given a `parameter' struct, allocates an appropriate GtkWidget for it,
654 and stores it in `p->widget'.
655 `row' is used for keeping track of our position during table layout.
656 `parent' must be a GtkTable or a GtkBox.
659 make_parameter_widget (const char *filename,
660 parameter *p, GtkWidget *parent, int *row)
662 const char *label = p->label;
663 if (p->widget) return;
671 GtkWidget *w = gtk_label_new (label);
672 gtk_label_set_justify (GTK_LABEL (w), GTK_JUSTIFY_RIGHT);
673 gtk_misc_set_alignment (GTK_MISC (w), 1.0, 0.5);
676 gtk_table_attach (GTK_TABLE (parent), w, 0, 1, *row, *row + 1,
679 gtk_box_pack_start (GTK_BOX (parent), w, FALSE, FALSE, 4);
682 p->widget = gtk_entry_new ();
684 gtk_entry_set_text (GTK_ENTRY (p->widget), p->string);
686 gtk_table_attach (GTK_TABLE (parent), p->widget, 1, 3,
690 gtk_box_pack_start (GTK_BOX (parent), p->widget, FALSE, FALSE, 4);
695 GtkWidget *L = gtk_label_new (label ? label : "");
696 GtkWidget *entry = gtk_entry_new ();
697 GtkWidget *button = gtk_button_new_with_label ("Browse...");
698 gtk_widget_show (entry);
699 gtk_widget_show (button);
702 gtk_signal_connect (GTK_OBJECT (button),
703 "clicked", GTK_SIGNAL_FUNC (browse_button_cb),
706 gtk_label_set_justify (GTK_LABEL (L), GTK_JUSTIFY_RIGHT);
707 gtk_misc_set_alignment (GTK_MISC (L), 1.0, 0.5);
711 gtk_entry_set_text (GTK_ENTRY (entry), p->string);
715 gtk_table_attach (GTK_TABLE (parent), L, 0, 1,
718 gtk_table_attach (GTK_TABLE (parent), entry, 1, 2,
720 GTK_EXPAND | GTK_FILL, 0, 0, 0);
721 gtk_table_attach (GTK_TABLE (parent), button, 2, 3,
727 gtk_box_pack_start (GTK_BOX (parent), L, FALSE, FALSE, 4);
728 gtk_box_pack_start (GTK_BOX (parent), entry, TRUE, TRUE, 4);
729 gtk_box_pack_start (GTK_BOX (parent), button, FALSE, FALSE, 4);
735 GtkAdjustment *adj = make_adjustment (filename, p);
736 GtkWidget *scale = gtk_hscale_new (adj);
737 GtkWidget *labelw = 0;
741 labelw = gtk_label_new (label);
742 gtk_label_set_justify (GTK_LABEL (labelw), GTK_JUSTIFY_LEFT);
743 gtk_misc_set_alignment (GTK_MISC (labelw), 0.0, 0.5);
744 gtk_widget_show (labelw);
747 if (GTK_IS_VBOX (parent))
749 /* If we're inside a vbox, we need to put an hbox in it, to get
750 the low/high labels to be to the left/right of the slider.
752 GtkWidget *hbox = gtk_hbox_new (FALSE, 0);
754 /* But if we have a label, put that above the slider's hbox. */
757 gtk_box_pack_start (GTK_BOX (parent), labelw, FALSE, TRUE, 2);
761 gtk_box_pack_start (GTK_BOX (parent), hbox, TRUE, TRUE, 6);
762 gtk_widget_show (hbox);
770 gtk_table_attach (GTK_TABLE (parent), labelw,
771 0, 3, *row, *row + 1,
772 GTK_EXPAND | GTK_FILL, 0, 0, 0);
777 if (GTK_IS_HBOX (parent))
779 GtkWidget *box = gtk_vbox_new (FALSE, 0);
780 gtk_box_pack_start (GTK_BOX (parent), box, FALSE, TRUE, 0);
781 gtk_widget_show (box);
782 gtk_box_pack_start (GTK_BOX (box), labelw, FALSE, TRUE, 4);
784 box = gtk_hbox_new (FALSE, 0);
785 gtk_widget_show (box);
786 gtk_box_pack_start (GTK_BOX (parent), box, TRUE, TRUE, 0);
790 gtk_box_pack_start (GTK_BOX (parent), labelw,
797 GtkWidget *w = gtk_label_new (p->low_label);
798 gtk_label_set_justify (GTK_LABEL (w), GTK_JUSTIFY_RIGHT);
799 gtk_misc_set_alignment (GTK_MISC (w), 1.0, 0.5);
802 gtk_table_attach (GTK_TABLE (parent), w, 0, 1, *row, *row + 1,
805 gtk_box_pack_start (GTK_BOX (parent), w, FALSE, FALSE, 4);
808 gtk_scale_set_value_pos (GTK_SCALE (scale), GTK_POS_BOTTOM);
809 gtk_scale_set_draw_value (GTK_SCALE (scale), FALSE);
810 gtk_scale_set_digits (GTK_SCALE (scale), (p->integer_p ? 0 : 2));
812 gtk_table_attach (GTK_TABLE (parent), scale, 1, 2,
814 GTK_EXPAND | GTK_FILL, 0, 0, 0);
816 gtk_box_pack_start (GTK_BOX (parent), scale, TRUE, TRUE, 4);
818 gtk_widget_show (scale);
822 GtkWidget *w = gtk_label_new (p->high_label);
823 gtk_label_set_justify (GTK_LABEL (w), GTK_JUSTIFY_LEFT);
824 gtk_misc_set_alignment (GTK_MISC (w), 0.0, 0.5);
827 gtk_table_attach (GTK_TABLE (parent), w, 2, 3, *row, *row + 1,
830 gtk_box_pack_start (GTK_BOX (parent), w, FALSE, FALSE, 4);
838 GtkAdjustment *adj = make_adjustment (filename, p);
839 GtkWidget *spin = gtk_spin_button_new (adj, 15, 0);
840 gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spin), TRUE);
841 gtk_spin_button_set_snap_to_ticks (GTK_SPIN_BUTTON (spin), TRUE);
842 gtk_spin_button_set_value (GTK_SPIN_BUTTON (spin), adj->value);
846 GtkWidget *w = gtk_label_new (label);
847 gtk_label_set_justify (GTK_LABEL (w), GTK_JUSTIFY_RIGHT);
848 gtk_misc_set_alignment (GTK_MISC (w), 1.0, 0.5);
851 gtk_table_attach (GTK_TABLE (parent), w, 0, 1, *row, *row + 1,
854 gtk_box_pack_start (GTK_BOX (parent), w, TRUE, TRUE, 4);
857 gtk_widget_show (spin);
860 GtkWidget *hbox = gtk_hbox_new (FALSE, 0);
861 gtk_widget_show (hbox);
862 gtk_table_attach (GTK_TABLE (parent), hbox, 1, 3,
864 GTK_EXPAND | GTK_FILL, 0, 8, 0);
865 gtk_box_pack_start (GTK_BOX (hbox), spin, FALSE, FALSE, 0);
868 gtk_box_pack_start (GTK_BOX (parent), spin, FALSE, FALSE, 4);
875 p->widget = gtk_check_button_new_with_label (label);
877 gtk_table_attach (GTK_TABLE (parent), p->widget, 0, 3,
879 GTK_EXPAND | GTK_FILL, 0, 0, 0);
881 gtk_box_pack_start (GTK_BOX (parent), p->widget, FALSE, FALSE, 4);
886 GtkWidget *opt = gtk_option_menu_new ();
887 GtkWidget *menu = gtk_menu_new ();
892 GtkWidget *w = gtk_label_new (label);
893 gtk_label_set_justify (GTK_LABEL (w), GTK_JUSTIFY_LEFT);
894 gtk_misc_set_alignment (GTK_MISC (w), 0.0, 0.5);
896 gtk_table_attach (GTK_TABLE (parent), w, 0, 3, *row, *row + 1,
897 GTK_EXPAND | GTK_FILL, 0, 0, 0);
901 for (opts = p->options; opts; opts = opts->next)
903 parameter *s = (parameter *) opts->data;
904 GtkWidget *i = gtk_menu_item_new_with_label (s->label);
906 gtk_menu_append (GTK_MENU (menu), i);
909 gtk_option_menu_set_menu (GTK_OPTION_MENU (opt), menu);
912 gtk_table_attach (GTK_TABLE (parent), p->widget, 0, 3,
914 GTK_EXPAND | GTK_FILL, 0, 0, 0);
916 gtk_box_pack_start (GTK_BOX (parent), p->widget, TRUE, TRUE, 4);
931 gtk_widget_set_name (p->widget, p->id);
932 gtk_widget_show (p->widget);
940 Absurdly, there is no GTK file entry widget, only a GNOME one,
941 so in order to avoid depending on GNOME in this code, we have
945 /* cancel button on GtkFileSelection: user_data unused */
947 file_sel_cancel (GtkWidget *button, gpointer user_data)
949 GtkWidget *dialog = button;
950 while (dialog->parent)
951 dialog = dialog->parent;
952 gtk_widget_destroy (dialog);
955 /* ok button on GtkFileSelection: user_data is the corresponding GtkEntry */
957 file_sel_ok (GtkWidget *button, gpointer user_data)
959 GtkWidget *entry = GTK_WIDGET (user_data);
960 GtkWidget *dialog = button;
962 while (dialog->parent)
963 dialog = dialog->parent;
964 gtk_widget_hide (dialog);
966 path = gtk_file_selection_get_filename (GTK_FILE_SELECTION (dialog));
967 /* apparently one doesn't free `path' */
969 gtk_entry_set_text (GTK_ENTRY (entry), path);
970 gtk_entry_set_position (GTK_ENTRY (entry), strlen (path));
972 gtk_widget_destroy (dialog);
975 /* WM close on GtkFileSelection: user_data unused */
977 file_sel_close (GtkWidget *widget, GdkEvent *event, gpointer user_data)
979 file_sel_cancel (widget, user_data);
982 /* "Browse" button: user_data is the corresponding GtkEntry */
984 browse_button_cb (GtkButton *button, gpointer user_data)
986 GtkWidget *entry = GTK_WIDGET (user_data);
987 char *text = gtk_entry_get_text (GTK_ENTRY (entry));
988 GtkFileSelection *selector =
989 GTK_FILE_SELECTION (gtk_file_selection_new ("Select file."));
991 gtk_file_selection_set_filename (selector, text);
992 gtk_signal_connect (GTK_OBJECT (selector->ok_button),
993 "clicked", GTK_SIGNAL_FUNC (file_sel_ok),
995 gtk_signal_connect (GTK_OBJECT (selector->cancel_button),
996 "clicked", GTK_SIGNAL_FUNC (file_sel_cancel),
998 gtk_signal_connect (GTK_OBJECT (selector), "delete_event",
999 GTK_SIGNAL_FUNC (file_sel_close),
1002 gtk_window_set_modal (GTK_WINDOW (selector), TRUE);
1003 gtk_widget_show (GTK_WIDGET (selector));
1007 /* Converting to and from command-lines
1011 /* Returns a copy of string that has been quoted according to shell rules:
1012 it may have been wrapped in "" and had some characters backslashed; or
1013 it may be unchanged.
1016 shell_quotify (const char *string)
1018 char *string2 = (char *) malloc ((strlen (string) * 2) + 10);
1021 int need_quotes = 0;
1026 for (in = string; *in; in++)
1037 else if (*in <= ' ' ||
1063 return strdup (string);
1066 /* Modify the string in place to remove wrapping double-quotes
1067 and interior backslashes.
1070 de_stringify (char *s)
1073 if (q != '\'' && q != '\"' && q != '`')
1075 memmove (s, s+1, strlen (s)+1);
1076 while (*s && *s != q)
1079 memmove (s, s+1, strlen (s)+1);
1082 if (*s != q) abort();
1087 /* Substitutes a shell-quotified version of `value' into `p->arg' at
1088 the place where the `%' character appeared.
1091 format_switch (parameter *p, const char *value)
1096 if (!fmt || !value) return 0;
1097 v2 = shell_quotify (value);
1098 result = (char *) malloc (strlen (fmt) + strlen (v2) + 10);
1115 /* Maps a `parameter' to a command-line switch.
1116 Returns 0 if it can't, or if the parameter has the default value.
1119 parameter_to_switch (parameter *p)
1125 return strdup (p->arg);
1131 if (!p->widget) return 0;
1133 const char *s = gtk_entry_get_text (GTK_ENTRY (p->widget));
1135 if (!strcmp ((s ? s : ""),
1136 (p->string ? p->string : "")))
1137 v = 0; /* same as default */
1139 v = format_switch (p, s);
1141 /* don't free `s' */
1146 if (!p->widget) return 0;
1148 GtkAdjustment *adj =
1150 ? gtk_range_get_adjustment (GTK_RANGE (p->widget))
1151 : gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (p->widget)));
1154 float value = (p->invert_p
1155 ? invert_range (adj->lower, adj->upper, adj->value)
1158 if (value == p->value) /* same as default */
1162 sprintf (buf, "%d", (int) (value + 0.5));
1164 sprintf (buf, "%.4f", value);
1166 s1 = strchr (buf, '.');
1169 char *s2 = s1 + strlen(s1) - 1;
1170 while (s2 > s1 && *s2 == '0') /* lose trailing zeroes */
1172 if (s2 >= s1 && *s2 == '.') /* lose trailing decimal */
1175 return format_switch (p, buf);
1178 if (!p->widget) return 0;
1180 GtkToggleButton *b = GTK_TOGGLE_BUTTON (p->widget);
1181 const char *s = (gtk_toggle_button_get_active (b)
1190 if (!p->widget) return 0;
1192 GtkOptionMenu *opt = GTK_OPTION_MENU (p->widget);
1193 GtkMenu *menu = GTK_MENU (gtk_option_menu_get_menu (opt));
1194 GtkWidget *selected = gtk_menu_get_active (menu);
1195 GList *kids = gtk_container_children (GTK_CONTAINER (menu));
1196 int menu_elt = g_list_index (kids, (gpointer) selected);
1197 GList *ol = g_list_nth (p->options, menu_elt);
1198 parameter *o = (ol ? (parameter *) ol->data : 0);
1201 if (o->type != SELECT_OPTION) abort();
1216 /* Maps a GList of `parameter' objects to a complete command-line string.
1217 All arguments will be properly quoted.
1220 parameters_to_cmd_line (GList *parms)
1222 int L = g_list_length (parms);
1224 char **strs = (char **) calloc (sizeof (*parms), L);
1229 for (i = 0; parms; parms = parms->next, i++)
1231 char *s = parameter_to_switch ((parameter *) parms->data);
1233 LL += (s ? strlen(s) : 0) + 1;
1236 result = (char *) malloc (LL + 10);
1238 for (i = 0; i < L; i++)
1241 strcpy (out, strs[i]);
1242 out += strlen (out);
1247 while (out > result && out[-1] == ' ') /* strip trailing spaces */
1255 /* Returns a GList of the tokens the string, using shell syntax;
1256 Quoted strings are handled as a single token.
1259 tokenize_command_line (const char *cmd)
1262 const char *s = cmd;
1267 for (; isspace(*s); s++); /* skip whitespace */
1270 if (*s == '\'' || *s == '\"' || *s == '`')
1274 while (*s && *s != q) /* skip to matching quote */
1276 if (*s == '\\' && s[1]) /* allowing backslash quoting */
1294 ss = (char *) malloc ((s - start) + 1);
1295 strncpy (ss, start, s-start);
1297 if (*ss == '\'' || *ss == '\"' || *ss == '`')
1299 result = g_list_append (result, ss);
1306 static void parameter_set_switch (parameter *, gpointer value);
1307 static gboolean parse_command_line_into_parameters_1 (const char *filename,
1314 /* Parses the command line, and flushes those options down into
1315 the `parameter' structs in the list.
1318 parse_command_line_into_parameters (const char *filename,
1319 const char *cmd, GList *parms)
1321 GList *tokens = tokenize_command_line (cmd);
1323 for (rest = tokens; rest; rest = rest->next)
1325 char *option = rest->data;
1328 if (option[0] != '-')
1331 fprintf (stderr, "%s: WARNING: %s: not a switch: \"%s\"\n",
1332 blurb(), filename, option);
1338 if (rest->next) /* pop off the arg to this option */
1340 char *s = (char *) rest->next->data;
1341 /* the next token is the next switch iff it matches "-[a-z]".
1342 (To avoid losing on "-x -3.1".)
1344 if (s && (s[0] != '-' || !isalpha(s[1])))
1347 rest->next->data = 0;
1352 parse_command_line_into_parameters_1 (filename, parms,
1354 if (value) free (value);
1358 g_list_free (tokens);
1363 compare_opts (const char *option, const char *value,
1364 const char *template)
1366 int ol = strlen (option);
1369 if (strncmp (option, template, ol))
1372 if (template[ol] != (value ? ' ' : 0))
1375 /* At this point, we have a match against "option".
1376 If template contains a %, we're done.
1377 Else, compare against "value" too.
1379 c = strchr (template, '%');
1384 return (template[ol] == 0);
1385 if (strcmp (template + ol + 1, value))
1393 parse_command_line_into_parameters_1 (const char *filename,
1400 parameter *match = 0;
1404 for (p = parms; p; p = p->next)
1406 parameter *pp = (parameter *) p->data;
1409 if (pp->type == SELECT)
1411 if (parse_command_line_into_parameters_1 (filename,
1422 if (compare_opts (option, value, pp->arg))
1428 else if (pp->arg_set)
1430 if (compare_opts (option, value, pp->arg_set))
1436 else if (pp->arg_unset)
1438 if (compare_opts (option, value, pp->arg_unset))
1453 if (debug_p && !parent)
1454 fprintf (stderr, "%s: WARNING: %s: no match for %s %s\n",
1455 blurb(), filename, option, (value ? value : ""));
1459 switch (match->type)
1465 if (which != -1) abort();
1466 parameter_set_switch (match, (gpointer) value);
1469 if (which != 0 && which != 1) abort();
1470 parameter_set_switch (match, (gpointer) which);
1473 if (which != 1) abort();
1474 parameter_set_switch (parent, (gpointer) index);
1483 /* Set the parameter's value.
1484 For STRING, FILENAME, SLIDER, and SPINBUTTON, `value' is a char*.
1485 For BOOLEAN and SELECT, `value' is an int.
1488 parameter_set_switch (parameter *p, gpointer value)
1490 if (p->type == SELECT_OPTION) abort();
1491 if (!p->widget) return;
1497 gtk_entry_set_text (GTK_ENTRY (p->widget), (char *) value);
1503 GtkAdjustment *adj =
1505 ? gtk_range_get_adjustment (GTK_RANGE (p->widget))
1506 : gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (p->widget)));
1510 if (1 == sscanf ((char *) value, "%f %c", &f, &c))
1513 f = invert_range (adj->lower, adj->upper, f);
1514 gtk_adjustment_set_value (adj, f);
1520 GtkToggleButton *b = GTK_TOGGLE_BUTTON (p->widget);
1521 gtk_toggle_button_set_active (b, (int) value);
1526 gtk_option_menu_set_history (GTK_OPTION_MENU (p->widget),
1537 restore_defaults (const char *progname, GList *parms)
1539 for (; parms; parms = parms->next)
1541 parameter *p = (parameter *) parms->data;
1542 if (!p->widget) continue;
1548 gtk_entry_set_text (GTK_ENTRY (p->widget),
1549 (p->string ? p->string : ""));
1555 GtkAdjustment *adj =
1557 ? gtk_range_get_adjustment (GTK_RANGE (p->widget))
1558 : gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (p->widget)));
1559 float value = (p->invert_p
1560 ? invert_range (p->low, p->high, p->value)
1562 gtk_adjustment_set_value (adj, value);
1567 /* A toggle button should be on by default if it inserts
1568 nothing into the command line when on. E.g., it should
1569 be on if `arg_set' is null.
1571 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (p->widget),
1572 (!p->arg_set || !*p->arg_set));
1577 GtkOptionMenu *opt = GTK_OPTION_MENU (p->widget);
1582 for (opts = p->options, index = 0; opts;
1583 opts = opts->next, index++)
1585 parameter *s = (parameter *) opts->data;
1586 /* The default menu item is the first one with
1587 no `arg_set' field. */
1595 gtk_option_menu_set_history (GTK_OPTION_MENU (opt), selected);
1606 /* Documentation strings
1610 get_description (GList *parms)
1613 for (; parms; parms = parms->next)
1615 parameter *p = (parameter *) parms->data;
1616 if (p->type == DESCRIPTION)
1623 if (!doc || !doc->string)
1627 char *d = strdup (doc->string);
1629 for (s = d; *s; s++)
1632 if (s[1] == '\n') /* blank line: leave it */
1634 else if (s[1] == ' ' || s[1] == '\t')
1635 s++; /* next line is indented: leave newline */
1637 s[0] = ' '; /* delete newline to un-fold this line */
1640 /* strip off leading whitespace on first line only */
1641 for (s = d; *s && (*s == ' ' || *s == '\t'); s++)
1643 while (*s == '\n') /* strip leading newlines */
1646 memmove (d, s, strlen(s)+1);
1648 /* strip off trailing whitespace and newlines */
1651 while (L && isspace(d[L-1]))
1660 /* External interface.
1664 load_configurator_1 (const char *program, const char *arguments,
1667 const char *dir = HACK_CONFIGURATION_PATH;
1668 int L = strlen (dir);
1669 char *file = (char *) malloc (L + strlen (program) + 10);
1672 conf_data *data = (conf_data *) calloc (1, sizeof(*data));
1675 if (file[L-1] != '/')
1677 strcpy (file+L, program);
1679 for (s = file+L; *s; s++)
1680 if (*s == '/' || *s == ' ')
1682 else if (isupper (*s))
1685 strcat (file+L, ".xml");
1687 f = fopen (file, "r");
1690 int res, size = 1024;
1692 xmlParserCtxtPtr ctxt;
1698 fprintf (stderr, "%s: reading %s...\n", blurb(), file);
1700 res = fread (chars, 1, 4, f);
1701 if (res <= 0) return 0;
1703 ctxt = xmlCreatePushParserCtxt(NULL, NULL, chars, res, file);
1704 while ((res = fread(chars, 1, size, f)) > 0)
1705 xmlParseChunk (ctxt, chars, res, 0);
1706 xmlParseChunk (ctxt, chars, 0, 1);
1708 xmlFreeParserCtxt (ctxt);
1711 /* Parsed the XML file. Now make some widgets. */
1713 table = gtk_table_new (1, 3, FALSE);
1714 gtk_table_set_row_spacings (GTK_TABLE (table), 4);
1715 gtk_table_set_col_spacings (GTK_TABLE (table), 4);
1716 gtk_container_set_border_width (GTK_CONTAINER (table), 8);
1717 gtk_widget_show (table);
1719 parms = make_parameters (file, doc->root, table);
1723 restore_defaults (program, parms);
1724 if (arguments && *arguments)
1725 parse_command_line_into_parameters (program, arguments, parms);
1727 data->widget = table;
1728 data->parameters = parms;
1729 data->description = get_description (parms);
1736 fprintf (stderr, "%s: %s does not exist.\n", blurb(), file);
1738 p = calloc (1, sizeof(*p));
1740 p->arg = strdup (arguments);
1742 data->parameters = g_list_append (0, (gpointer) p);
1745 data->progname = strdup (program);
1750 split_command_line (const char *full_command_line,
1751 char **prog_ret, char **args_ret)
1753 char *line = strdup (full_command_line);
1766 while (isspace (*s)) s++;
1769 else if (*s == '=') /* if the leading word contains an "=", skip it. */
1771 while (*s && !isspace (*s)) s++;
1772 while (isspace (*s)) s++;
1779 *prog_ret = strdup (prog);
1780 *args_ret = strdup (args);
1786 load_configurator (const char *full_command_line, gboolean verbose_p)
1791 split_command_line (full_command_line, &prog, &args);
1792 cd = load_configurator_1 (prog, args, verbose_p);
1801 get_configurator_command_line (conf_data *data)
1803 char *args = parameters_to_cmd_line (data->parameters);
1804 char *result = (char *) malloc (strlen (data->progname) +
1806 strcpy (result, data->progname);
1807 strcat (result, " ");
1808 strcat (result, args);
1815 set_configurator_command_line (conf_data *data, const char *full_command_line)
1819 split_command_line (full_command_line, &prog, &args);
1820 if (data->progname) free (data->progname);
1821 data->progname = prog;
1822 restore_defaults (prog, data->parameters);
1823 parse_command_line_into_parameters (prog, args, data->parameters);
1828 free_conf_data (conf_data *data)
1830 if (data->parameters)
1833 for (rest = data->parameters; rest; rest = rest->next)
1835 free_parameter ((parameter *) rest->data);
1838 g_list_free (data->parameters);
1839 data->parameters = 0;
1843 gtk_widget_destroy (data->widget);
1846 free (data->progname);;
1848 memset (data, ~0, sizeof(*data));
1853 #endif /* HAVE_GTK && HAVE_XML -- whole file */