1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
29 #include "gtkmarshalers.h"
30 #include "gtkradiobutton.h"
31 #include "gtkprivate.h"
42 static void gtk_radio_button_destroy (GtkObject *object);
43 static gboolean gtk_radio_button_focus (GtkWidget *widget,
44 GtkDirectionType direction);
45 static void gtk_radio_button_clicked (GtkButton *button);
46 static void gtk_radio_button_draw_indicator (GtkCheckButton *check_button,
48 static void gtk_radio_button_set_property (GObject *object,
52 static void gtk_radio_button_get_property (GObject *object,
57 G_DEFINE_TYPE (GtkRadioButton, gtk_radio_button, GTK_TYPE_CHECK_BUTTON)
59 static guint group_changed_signal = 0;
62 gtk_radio_button_class_init (GtkRadioButtonClass *class)
64 GObjectClass *gobject_class;
65 GtkObjectClass *object_class;
66 GtkButtonClass *button_class;
67 GtkCheckButtonClass *check_button_class;
68 GtkWidgetClass *widget_class;
70 gobject_class = G_OBJECT_CLASS (class);
71 object_class = (GtkObjectClass*) class;
72 widget_class = (GtkWidgetClass*) class;
73 button_class = (GtkButtonClass*) class;
74 check_button_class = (GtkCheckButtonClass*) class;
76 gobject_class->set_property = gtk_radio_button_set_property;
77 gobject_class->get_property = gtk_radio_button_get_property;
79 g_object_class_install_property (gobject_class,
81 g_param_spec_object ("group",
83 P_("The radio button whose group this widget belongs to."),
84 GTK_TYPE_RADIO_BUTTON,
86 object_class->destroy = gtk_radio_button_destroy;
88 widget_class->focus = gtk_radio_button_focus;
90 button_class->clicked = gtk_radio_button_clicked;
92 check_button_class->draw_indicator = gtk_radio_button_draw_indicator;
94 class->group_changed = NULL;
97 * GtkRadioButton::group-changed:
98 * @style: the object which received the signal
100 * Emitted when the group of radio buttons that a radio button belongs
101 * to changes. This is emitted when a radio button switches from
102 * being alone to being part of a group of 2 or more buttons, or
103 * vice-versa, and when a button is moved from one group of 2 or
104 * more buttons to a different one, but not when the composition
105 * of the group that a button belongs to changes.
109 group_changed_signal = g_signal_new (I_("group-changed"),
110 G_OBJECT_CLASS_TYPE (object_class),
112 G_STRUCT_OFFSET (GtkRadioButtonClass, group_changed),
114 _gtk_marshal_VOID__VOID,
119 gtk_radio_button_init (GtkRadioButton *radio_button)
121 GTK_WIDGET_SET_FLAGS (radio_button, GTK_NO_WINDOW);
122 GTK_WIDGET_UNSET_FLAGS (radio_button, GTK_RECEIVES_DEFAULT);
124 GTK_TOGGLE_BUTTON (radio_button)->active = TRUE;
126 GTK_BUTTON (radio_button)->depress_on_activate = FALSE;
128 radio_button->group = g_slist_prepend (NULL, radio_button);
130 _gtk_button_set_depressed (GTK_BUTTON (radio_button), TRUE);
131 gtk_widget_set_state (GTK_WIDGET (radio_button), GTK_STATE_ACTIVE);
135 gtk_radio_button_set_property (GObject *object,
140 GtkRadioButton *radio_button;
142 radio_button = GTK_RADIO_BUTTON (object);
147 GtkRadioButton *button;
150 button = g_value_get_object (value);
153 slist = gtk_radio_button_get_group (button);
156 gtk_radio_button_set_group (radio_button, slist);
159 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
165 gtk_radio_button_get_property (GObject *object,
173 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
179 gtk_radio_button_set_group (GtkRadioButton *radio_button,
182 GtkWidget *old_group_singleton = NULL;
183 GtkWidget *new_group_singleton = NULL;
185 g_return_if_fail (GTK_IS_RADIO_BUTTON (radio_button));
186 g_return_if_fail (!g_slist_find (group, radio_button));
188 if (radio_button->group)
192 radio_button->group = g_slist_remove (radio_button->group, radio_button);
194 if (radio_button->group && !radio_button->group->next)
195 old_group_singleton = g_object_ref (radio_button->group->data);
197 for (slist = radio_button->group; slist; slist = slist->next)
199 GtkRadioButton *tmp_button;
201 tmp_button = slist->data;
203 tmp_button->group = radio_button->group;
207 if (group && !group->next)
208 new_group_singleton = g_object_ref (group->data);
210 radio_button->group = g_slist_prepend (group, radio_button);
216 for (slist = group; slist; slist = slist->next)
218 GtkRadioButton *tmp_button;
220 tmp_button = slist->data;
222 tmp_button->group = radio_button->group;
226 g_object_ref (radio_button);
228 g_object_notify (G_OBJECT (radio_button), "group");
229 g_signal_emit (radio_button, group_changed_signal, 0);
230 if (old_group_singleton)
232 g_signal_emit (old_group_singleton, group_changed_signal, 0);
233 g_object_unref (old_group_singleton);
235 if (new_group_singleton)
237 g_signal_emit (new_group_singleton, group_changed_signal, 0);
238 g_object_unref (new_group_singleton);
241 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (radio_button), group == NULL);
243 g_object_unref (radio_button);
247 gtk_radio_button_new (GSList *group)
249 GtkRadioButton *radio_button;
251 radio_button = g_object_new (GTK_TYPE_RADIO_BUTTON, NULL);
254 gtk_radio_button_set_group (radio_button, group);
256 return GTK_WIDGET (radio_button);
260 gtk_radio_button_new_with_label (GSList *group,
263 GtkWidget *radio_button;
265 radio_button = g_object_new (GTK_TYPE_RADIO_BUTTON, "label", label, NULL) ;
268 gtk_radio_button_set_group (GTK_RADIO_BUTTON (radio_button), group);
275 * gtk_radio_button_new_with_mnemonic:
276 * @group: the radio button group
277 * @label: the text of the button, with an underscore in front of the
279 * @returns: a new #GtkRadioButton
281 * Creates a new #GtkRadioButton containing a label, adding it to the same
282 * group as @group. The label will be created using
283 * gtk_label_new_with_mnemonic(), so underscores in @label indicate the
284 * mnemonic for the button.
287 gtk_radio_button_new_with_mnemonic (GSList *group,
290 GtkWidget *radio_button;
292 radio_button = g_object_new (GTK_TYPE_RADIO_BUTTON,
294 "use-underline", TRUE,
298 gtk_radio_button_set_group (GTK_RADIO_BUTTON (radio_button), group);
304 gtk_radio_button_new_from_widget (GtkRadioButton *radio_group_member)
307 if (radio_group_member)
308 l = gtk_radio_button_get_group (radio_group_member);
309 return gtk_radio_button_new (l);
314 gtk_radio_button_new_with_label_from_widget (GtkRadioButton *radio_group_member,
318 if (radio_group_member)
319 l = gtk_radio_button_get_group (radio_group_member);
320 return gtk_radio_button_new_with_label (l, label);
324 * gtk_radio_button_new_with_mnemonic_from_widget:
325 * @radio_group_member: widget to get radio group from or %NULL
326 * @label: the text of the button, with an underscore in front of the
328 * @returns: a new #GtkRadioButton
330 * Creates a new #GtkRadioButton containing a label. The label
331 * will be created using gtk_label_new_with_mnemonic(), so underscores
332 * in @label indicate the mnemonic for the button.
335 gtk_radio_button_new_with_mnemonic_from_widget (GtkRadioButton *radio_group_member,
339 if (radio_group_member)
340 l = gtk_radio_button_get_group (radio_group_member);
341 return gtk_radio_button_new_with_mnemonic (l, label);
345 gtk_radio_button_get_group (GtkRadioButton *radio_button)
347 g_return_val_if_fail (GTK_IS_RADIO_BUTTON (radio_button), NULL);
349 return radio_button->group;
354 gtk_radio_button_destroy (GtkObject *object)
356 GtkWidget *old_group_singleton = NULL;
357 GtkRadioButton *radio_button;
358 GtkRadioButton *tmp_button;
360 gboolean was_in_group;
362 radio_button = GTK_RADIO_BUTTON (object);
364 was_in_group = radio_button->group && radio_button->group->next;
366 radio_button->group = g_slist_remove (radio_button->group, radio_button);
367 if (radio_button->group && !radio_button->group->next)
368 old_group_singleton = radio_button->group->data;
370 tmp_list = radio_button->group;
374 tmp_button = tmp_list->data;
375 tmp_list = tmp_list->next;
377 tmp_button->group = radio_button->group;
380 /* this button is no longer in the group */
381 radio_button->group = NULL;
383 if (old_group_singleton)
384 g_signal_emit (old_group_singleton, group_changed_signal, 0);
386 g_signal_emit (radio_button, group_changed_signal, 0);
388 if (GTK_OBJECT_CLASS (gtk_radio_button_parent_class)->destroy)
389 (* GTK_OBJECT_CLASS (gtk_radio_button_parent_class)->destroy) (object);
393 get_coordinates (GtkWidget *widget,
394 GtkWidget *reference,
398 *x = widget->allocation.x + widget->allocation.width / 2;
399 *y = widget->allocation.y + widget->allocation.height / 2;
401 gtk_widget_translate_coordinates (widget, reference, *x, *y, x, y);
405 left_right_compare (gconstpointer a,
411 get_coordinates ((GtkWidget *)a, data, &x1, &y1);
412 get_coordinates ((GtkWidget *)b, data, &x2, &y2);
415 return (x1 < x2) ? -1 : ((x1 == x2) ? 0 : 1);
417 return (y1 < y2) ? -1 : 1;
421 up_down_compare (gconstpointer a,
427 get_coordinates ((GtkWidget *)a, data, &x1, &y1);
428 get_coordinates ((GtkWidget *)b, data, &x2, &y2);
431 return (y1 < y2) ? -1 : ((y1 == y2) ? 0 : 1);
433 return (x1 < x2) ? -1 : 1;
437 gtk_radio_button_focus (GtkWidget *widget,
438 GtkDirectionType direction)
440 GtkRadioButton *radio_button = GTK_RADIO_BUTTON (widget);
443 /* Radio buttons with draw_indicator unset focus "normally", since
444 * they look like buttons to the user.
446 if (!GTK_TOGGLE_BUTTON (widget)->draw_indicator)
447 return GTK_WIDGET_CLASS (gtk_radio_button_parent_class)->focus (widget, direction);
449 if (gtk_widget_is_focus (widget))
451 GtkSettings *settings = gtk_widget_get_settings (widget);
452 GSList *focus_list, *tmp_list;
453 GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
454 GtkWidget *new_focus = NULL;
455 gboolean cursor_only;
456 gboolean wrap_around;
462 focus_list = g_slist_copy (radio_button->group);
463 focus_list = g_slist_sort_with_data (focus_list, left_right_compare, toplevel);
467 focus_list = g_slist_copy (radio_button->group);
468 focus_list = g_slist_sort_with_data (focus_list, up_down_compare, toplevel);
470 case GTK_DIR_TAB_FORWARD:
471 case GTK_DIR_TAB_BACKWARD:
477 if (direction == GTK_DIR_LEFT || direction == GTK_DIR_UP)
478 focus_list = g_slist_reverse (focus_list);
480 tmp_list = g_slist_find (focus_list, widget);
484 tmp_list = tmp_list->next;
488 GtkWidget *child = tmp_list->data;
490 if (GTK_WIDGET_REALIZED (child) && GTK_WIDGET_IS_SENSITIVE (child))
496 tmp_list = tmp_list->next;
500 g_object_get (settings,
501 "gtk-keynav-cursor-only", &cursor_only,
502 "gtk-keynav-wrap-around", &wrap_around,
509 g_slist_free (focus_list);
515 g_slist_free (focus_list);
516 gtk_widget_error_bell (widget);
520 tmp_list = focus_list;
524 GtkWidget *child = tmp_list->data;
526 if (GTK_WIDGET_REALIZED (child) && GTK_WIDGET_IS_SENSITIVE (child))
532 tmp_list = tmp_list->next;
536 g_slist_free (focus_list);
540 gtk_widget_grab_focus (new_focus);
543 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (new_focus), TRUE);
550 GtkRadioButton *selected_button = NULL;
552 /* We accept the focus if, we don't have the focus and
553 * - we are the currently active button in the group
554 * - there is no currently active radio button.
557 tmp_slist = radio_button->group;
560 if (GTK_TOGGLE_BUTTON (tmp_slist->data)->active)
561 selected_button = tmp_slist->data;
562 tmp_slist = tmp_slist->next;
565 if (selected_button && selected_button != radio_button)
568 gtk_widget_grab_focus (widget);
574 gtk_radio_button_clicked (GtkButton *button)
576 GtkToggleButton *toggle_button;
577 GtkRadioButton *radio_button;
578 GtkToggleButton *tmp_button;
579 GtkStateType new_state;
584 radio_button = GTK_RADIO_BUTTON (button);
585 toggle_button = GTK_TOGGLE_BUTTON (button);
588 g_object_ref (GTK_WIDGET (button));
590 if (toggle_button->active)
593 tmp_list = radio_button->group;
597 tmp_button = tmp_list->data;
598 tmp_list = tmp_list->next;
600 if (tmp_button->active && tmp_button != toggle_button)
608 new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_ACTIVE);
613 toggle_button->active = !toggle_button->active;
614 new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_NORMAL);
620 toggle_button->active = !toggle_button->active;
622 tmp_list = radio_button->group;
625 tmp_button = tmp_list->data;
626 tmp_list = tmp_list->next;
628 if (tmp_button->active && (tmp_button != toggle_button))
630 gtk_button_clicked (GTK_BUTTON (tmp_button));
635 new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_ACTIVE);
638 if (toggle_button->inconsistent)
640 else if (button->in_button && button->button_down)
641 depressed = !toggle_button->active;
643 depressed = toggle_button->active;
645 if (GTK_WIDGET_STATE (button) != new_state)
646 gtk_widget_set_state (GTK_WIDGET (button), new_state);
650 gtk_toggle_button_toggled (toggle_button);
652 g_object_notify (G_OBJECT (toggle_button), "active");
655 _gtk_button_set_depressed (button, depressed);
657 gtk_widget_queue_draw (GTK_WIDGET (button));
659 g_object_unref (button);
663 gtk_radio_button_draw_indicator (GtkCheckButton *check_button,
669 GtkToggleButton *toggle_button;
670 GtkStateType state_type;
671 GtkShadowType shadow_type;
673 gint indicator_size, indicator_spacing;
676 gboolean interior_focus;
678 if (GTK_WIDGET_DRAWABLE (check_button))
680 widget = GTK_WIDGET (check_button);
681 button = GTK_BUTTON (check_button);
682 toggle_button = GTK_TOGGLE_BUTTON (check_button);
684 gtk_widget_style_get (widget,
685 "interior-focus", &interior_focus,
686 "focus-line-width", &focus_width,
687 "focus-padding", &focus_pad,
690 _gtk_check_button_get_props (check_button, &indicator_size, &indicator_spacing);
692 x = widget->allocation.x + indicator_spacing + GTK_CONTAINER (widget)->border_width;
693 y = widget->allocation.y + (widget->allocation.height - indicator_size) / 2;
695 child = GTK_BIN (check_button)->child;
696 if (!interior_focus || !(child && GTK_WIDGET_VISIBLE (child)))
697 x += focus_width + focus_pad;
699 if (toggle_button->inconsistent)
700 shadow_type = GTK_SHADOW_ETCHED_IN;
701 else if (toggle_button->active)
702 shadow_type = GTK_SHADOW_IN;
704 shadow_type = GTK_SHADOW_OUT;
706 if (button->activate_timeout || (button->button_down && button->in_button))
707 state_type = GTK_STATE_ACTIVE;
708 else if (button->in_button)
709 state_type = GTK_STATE_PRELIGHT;
710 else if (!GTK_WIDGET_IS_SENSITIVE (widget))
711 state_type = GTK_STATE_INSENSITIVE;
713 state_type = GTK_STATE_NORMAL;
715 if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
716 x = widget->allocation.x + widget->allocation.width - (indicator_size + x - widget->allocation.x);
718 if (GTK_WIDGET_STATE (toggle_button) == GTK_STATE_PRELIGHT)
720 GdkRectangle restrict_area;
721 GdkRectangle new_area;
723 restrict_area.x = widget->allocation.x + GTK_CONTAINER (widget)->border_width;
724 restrict_area.y = widget->allocation.y + GTK_CONTAINER (widget)->border_width;
725 restrict_area.width = widget->allocation.width - (2 * GTK_CONTAINER (widget)->border_width);
726 restrict_area.height = widget->allocation.height - (2 * GTK_CONTAINER (widget)->border_width);
728 if (gdk_rectangle_intersect (area, &restrict_area, &new_area))
730 gtk_paint_flat_box (widget->style, widget->window, GTK_STATE_PRELIGHT,
731 GTK_SHADOW_ETCHED_OUT,
732 area, widget, "checkbutton",
733 new_area.x, new_area.y,
734 new_area.width, new_area.height);
738 gtk_paint_option (widget->style, widget->window,
739 state_type, shadow_type,
740 area, widget, "radiobutton",
741 x, y, indicator_size, indicator_size);
745 #define __GTK_RADIO_BUTTON_C__
746 #include "gtkaliasdef.c"