1 /* gtkcombo - combo widget for gtk+
2 * Copyright 1997 Paolo Molaro
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/.
27 /* Do NOT, I repeat, NOT, copy any of the code in this file.
28 * The code here relies on all sorts of internal details of GTK+
37 #include "gtkeventbox.h"
38 #include "gtkbutton.h"
39 #include "gtklistitem.h"
40 #include "gtkscrolledwindow.h"
42 #include "gtksignal.h"
43 #include "gtkwindow.h"
44 #include "gdk/gdkkeysyms.h"
49 const gchar *gtk_combo_string_key = "gtk-combo-string-value";
51 #define COMBO_LIST_MAX_HEIGHT (400)
52 #define EMPTY_LIST_HEIGHT (15)
56 PROP_ENABLE_ARROW_KEYS,
57 PROP_ENABLE_ARROWS_ALWAYS,
63 static void gtk_combo_class_init (GtkComboClass *klass);
64 static void gtk_combo_init (GtkCombo *combo);
65 static void gtk_combo_destroy (GtkObject *combo);
66 static GtkListItem *gtk_combo_find (GtkCombo *combo);
67 static gchar * gtk_combo_func (GtkListItem *li);
68 static gint gtk_combo_focus_idle (GtkCombo *combo);
69 static gint gtk_combo_entry_focus_out (GtkEntry *entry,
72 static void gtk_combo_get_pos (GtkCombo *combo,
77 static void gtk_combo_popup_list (GtkCombo *combo);
78 static void gtk_combo_activate (GtkWidget *widget,
80 static gboolean gtk_combo_popup_button_press (GtkWidget *button,
81 GdkEventButton *event,
83 static gboolean gtk_combo_popup_button_leave (GtkWidget *button,
84 GdkEventCrossing *event,
86 static void gtk_combo_update_entry (GtkList *list,
88 static void gtk_combo_update_list (GtkEntry *entry,
90 static gint gtk_combo_button_press (GtkWidget *widget,
93 static void gtk_combo_button_event_after (GtkWidget *widget,
96 static gint gtk_combo_list_enter (GtkWidget *widget,
97 GdkEventCrossing *event,
99 static gint gtk_combo_list_key_press (GtkWidget *widget,
102 static gint gtk_combo_entry_key_press (GtkEntry *widget,
105 static gint gtk_combo_window_key_press (GtkWidget *window,
108 static void gtk_combo_item_destroy (GtkObject *object);
109 static void gtk_combo_size_allocate (GtkWidget *widget,
110 GtkAllocation *allocation);
111 static void gtk_combo_set_property (GObject *object,
115 static void gtk_combo_get_property (GObject *object,
119 static GtkHBoxClass *parent_class = NULL;
122 gtk_combo_class_init (GtkComboClass * klass)
124 GObjectClass *gobject_class;
125 GtkObjectClass *oclass;
126 GtkWidgetClass *widget_class;
128 gobject_class = (GObjectClass *) klass;
129 parent_class = gtk_type_class (GTK_TYPE_HBOX);
130 oclass = (GtkObjectClass *) klass;
131 widget_class = (GtkWidgetClass *) klass;
133 gobject_class->set_property = gtk_combo_set_property;
134 gobject_class->get_property = gtk_combo_get_property;
136 g_object_class_install_property (gobject_class,
137 PROP_ENABLE_ARROW_KEYS,
138 g_param_spec_boolean ("enable_arrow_keys",
139 _("Enable arrow keys"),
140 _("Whether the arrow keys move through the list of items"),
142 G_PARAM_READABLE | G_PARAM_WRITABLE));
143 g_object_class_install_property (gobject_class,
144 PROP_ENABLE_ARROWS_ALWAYS,
145 g_param_spec_boolean ("enable_arrows_always",
146 _("Always enable arrows"),
147 _("Whether the arrow keys work, even if the entry contents are not in the list"),
149 G_PARAM_READABLE | G_PARAM_WRITABLE));
150 g_object_class_install_property (gobject_class,
152 g_param_spec_boolean ("case_sensitive",
154 _("Whether list item matching is case sensitive"),
156 G_PARAM_READABLE | G_PARAM_WRITABLE));
158 g_object_class_install_property (gobject_class,
160 g_param_spec_boolean ("allow_empty",
162 _("Whether an empty value may be entered in this field"),
164 G_PARAM_READABLE | G_PARAM_WRITABLE));
166 g_object_class_install_property (gobject_class,
168 g_param_spec_boolean ("value_in_list",
170 _("Whether entered values must already be present in the list"),
172 G_PARAM_READABLE | G_PARAM_WRITABLE));
175 oclass->destroy = gtk_combo_destroy;
177 widget_class->size_allocate = gtk_combo_size_allocate;
181 gtk_combo_destroy (GtkObject *object)
183 GtkCombo *combo = GTK_COMBO (object);
187 gtk_widget_destroy (combo->popwin);
188 gtk_widget_unref (combo->popwin);
189 combo->popwin = NULL;
192 GTK_OBJECT_CLASS (parent_class)->destroy (object);
196 gtk_combo_entry_key_press (GtkEntry * entry, GdkEventKey * event, GtkCombo * combo)
201 if ((event->keyval == GDK_Tab ||
202 event->keyval == GDK_ISO_Left_Tab ||
203 event->keyval == GDK_KP_Tab) &&
204 (event->state & GDK_MOD1_MASK))
206 GtkEditable *editable = GTK_EDITABLE (entry);
209 gchar* nprefix = NULL;
212 if ( !GTK_LIST (combo->list)->children )
215 gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "key_press_event");
217 cmpl = g_completion_new ((GCompletionFunc)gtk_combo_func);
218 g_completion_add_items (cmpl, GTK_LIST (combo->list)->children);
220 pos = gtk_editable_get_position (editable);
221 prefix = gtk_editable_get_chars (editable, 0, pos);
223 g_completion_complete (cmpl, prefix, &nprefix);
225 if (nprefix && strlen (nprefix) > strlen (prefix))
227 gtk_editable_insert_text (editable, nprefix + pos,
228 strlen (nprefix) - strlen (prefix), &pos);
229 gtk_editable_set_position (editable, pos);
235 g_completion_free (cmpl);
240 if (!combo->use_arrows || !GTK_LIST (combo->list)->children)
243 li = g_list_find (GTK_LIST (combo->list)->children, gtk_combo_find (combo));
245 if ((event->keyval == GDK_Up)
246 || (event->keyval == GDK_KP_Up)
247 || ((event->state & GDK_MOD1_MASK) && ((event->keyval == 'p') || (event->keyval == 'P'))))
251 if (!li && combo->use_arrows_always)
253 li = g_list_last (GTK_LIST (combo->list)->children);
257 gtk_list_select_child (GTK_LIST (combo->list), GTK_WIDGET (li->data));
258 gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "key_press_event");
262 else if ((event->keyval == GDK_Down)
263 || (event->keyval == GDK_KP_Down)
264 || ((event->state & GDK_MOD1_MASK) && ((event->keyval == 'n') || (event->keyval == 'N'))))
268 if (!li && combo->use_arrows_always)
270 li = GTK_LIST (combo->list)->children;
274 gtk_list_select_child (GTK_LIST (combo->list), GTK_WIDGET (li->data));
275 gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "key_press_event");
283 gtk_combo_window_key_press (GtkWidget *window,
287 if (event->keyval == GDK_Return || event->keyval == GDK_KP_Enter)
289 if (GTK_WIDGET_VISIBLE (combo->popwin))
291 gtk_widget_hide (combo->popwin);
293 if (GTK_WIDGET_HAS_GRAB (combo->popwin))
295 gtk_grab_remove (combo->popwin);
296 gdk_pointer_ungrab (event->time);
300 gtk_signal_emit_stop_by_name (GTK_OBJECT (window), "key_press_event");
309 gtk_combo_find (GtkCombo * combo)
314 int (*string_compare) (const char *, const char *);
316 if (combo->case_sensitive)
317 string_compare = strcmp;
319 string_compare = g_strcasecmp;
321 text = gtk_entry_get_text (GTK_ENTRY (combo->entry));
322 clist = GTK_LIST (combo->list)->children;
324 while (clist && clist->data)
326 ltext = gtk_combo_func (GTK_LIST_ITEM (clist->data));
329 if (!(*string_compare) (ltext, text))
330 return (GtkListItem *) clist->data;
338 gtk_combo_func (GtkListItem * li)
343 ltext = (gchar *) gtk_object_get_data (GTK_OBJECT (li), gtk_combo_string_key);
346 label = GTK_BIN (li)->child;
347 if (!label || !GTK_IS_LABEL (label))
349 gtk_label_get (GTK_LABEL (label), <ext);
355 gtk_combo_focus_idle (GtkCombo * combo)
359 GDK_THREADS_ENTER ();
360 gtk_widget_grab_focus (combo->entry);
361 GDK_THREADS_LEAVE ();
367 gtk_combo_entry_focus_out (GtkEntry * entry, GdkEventFocus * event, GtkCombo * combo)
370 if (combo->value_in_list && !gtk_combo_find (combo))
372 /* gdk_beep(); *//* this can be annoying */
373 if (combo->ok_if_empty && !strcmp (gtk_entry_get_text (entry), ""))
376 printf ("INVALID ENTRY: `%s'\n", gtk_entry_get_text (entry));
378 gtk_grab_add (GTK_WIDGET (combo));
379 /* this is needed because if we call gtk_widget_grab_focus()
380 it isn't guaranteed it's the *last* call before the main-loop,
381 so the focus can be lost anyway...
382 the signal_emit_stop doesn't seem to work either...
384 gtk_idle_add ((GtkFunction) gtk_combo_focus_idle, combo);
385 /*gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "focus_out_event"); */
392 gtk_combo_get_pos (GtkCombo * combo, gint * x, gint * y, gint * height, gint * width)
396 GtkScrolledWindow *popup;
399 GtkRequisition list_requisition;
400 gboolean show_hscroll = FALSE;
401 gboolean show_vscroll = FALSE;
409 widget = GTK_WIDGET (combo);
410 popup = GTK_SCROLLED_WINDOW (combo->popup);
411 popwin = GTK_BIN (combo->popwin);
413 gdk_window_get_origin (combo->entry->window, x, y);
414 real_height = MIN (combo->entry->requisition.height,
415 combo->entry->allocation.height);
417 avail_height = gdk_screen_height () - *y;
419 gtk_widget_size_request (combo->list, &list_requisition);
420 min_height = MIN (list_requisition.height,
421 popup->vscrollbar->requisition.height);
422 if (!GTK_LIST (combo->list)->children)
423 list_requisition.height += EMPTY_LIST_HEIGHT;
425 alloc_width = (widget->allocation.width -
426 2 * popwin->child->style->xthickness -
427 2 * GTK_CONTAINER (popwin->child)->border_width -
428 2 * GTK_CONTAINER (combo->popup)->border_width -
429 2 * GTK_CONTAINER (GTK_BIN (popup)->child)->border_width -
430 2 * GTK_BIN (popup)->child->style->xthickness);
432 work_height = (2 * popwin->child->style->ythickness +
433 2 * GTK_CONTAINER (popwin->child)->border_width +
434 2 * GTK_CONTAINER (combo->popup)->border_width +
435 2 * GTK_CONTAINER (GTK_BIN (popup)->child)->border_width +
436 2 * GTK_BIN (popup)->child->style->xthickness);
440 old_width = alloc_width;
441 old_height = work_height;
444 alloc_width < list_requisition.width)
446 work_height += (popup->hscrollbar->requisition.height +
447 GTK_SCROLLED_WINDOW_GET_CLASS (combo->popup)->scrollbar_spacing);
451 work_height + list_requisition.height > avail_height)
453 if (work_height + min_height > avail_height &&
454 *y - real_height > avail_height)
456 *y -= (work_height + list_requisition.height + real_height);
459 alloc_width -= (popup->vscrollbar->requisition.width +
460 GTK_SCROLLED_WINDOW_GET_CLASS (combo->popup)->scrollbar_spacing);
463 } while (old_width != alloc_width || old_height != work_height);
465 *width = widget->allocation.width;
467 *height = avail_height;
469 *height = work_height + list_requisition.height;
476 gtk_combo_popup_list (GtkCombo * combo)
478 gint height, width, x, y;
479 gint old_width, old_height;
481 old_width = combo->popwin->allocation.width;
482 old_height = combo->popwin->allocation.height;
484 gtk_combo_get_pos (combo, &x, &y, &height, &width);
486 /* workaround for gtk_scrolled_window_size_allocate bug */
487 if (old_width != width || old_height != height)
489 gtk_widget_hide (GTK_SCROLLED_WINDOW (combo->popup)->hscrollbar);
490 gtk_widget_hide (GTK_SCROLLED_WINDOW (combo->popup)->vscrollbar);
493 gtk_window_move (GTK_WINDOW (combo->popwin), x, y);
494 gtk_widget_set_usize (combo->popwin, width, height);
495 gtk_widget_show (combo->popwin);
497 gtk_widget_grab_focus (combo->popwin);
501 gtk_combo_popdown_list (GtkCombo *combo)
503 combo->current_button = 0;
505 if (GTK_BUTTON (combo->button)->in_button)
507 GTK_BUTTON (combo->button)->in_button = FALSE;
508 gtk_button_released (GTK_BUTTON (combo->button));
511 if (GTK_WIDGET_HAS_GRAB (combo->popwin))
513 gtk_grab_remove (combo->popwin);
514 gdk_pointer_ungrab (GDK_CURRENT_TIME);
517 gtk_widget_hide (combo->popwin);
521 gtk_combo_activate (GtkWidget *widget,
524 gtk_combo_popup_list (combo);
526 if (!GTK_WIDGET_HAS_FOCUS (combo->entry))
527 gtk_widget_grab_focus (combo->entry);
529 gtk_grab_add (combo->popwin);
530 gdk_pointer_grab (combo->popwin->window, TRUE,
531 GDK_BUTTON_PRESS_MASK |
532 GDK_BUTTON_RELEASE_MASK |
533 GDK_POINTER_MOTION_MASK,
534 NULL, NULL, GDK_CURRENT_TIME);
538 gtk_combo_popup_button_press (GtkWidget *button,
539 GdkEventButton *event,
542 if (!GTK_WIDGET_HAS_FOCUS (combo->entry))
543 gtk_widget_grab_focus (combo->entry);
545 if (event->button != 1)
548 combo->current_button = event->button;
550 gtk_combo_popup_list (combo);
551 gtk_button_pressed (GTK_BUTTON (button));
553 gtk_grab_add (combo->popwin);
554 gdk_pointer_grab (combo->popwin->window, TRUE,
555 GDK_BUTTON_PRESS_MASK |
556 GDK_BUTTON_RELEASE_MASK |
557 GDK_POINTER_MOTION_MASK,
558 NULL, NULL, GDK_CURRENT_TIME);
560 GTK_LIST (combo->list)->drag_selection = TRUE;
561 gtk_grab_add (combo->list);
567 gtk_combo_popup_button_leave (GtkWidget *button,
568 GdkEventCrossing *event,
571 /* The idea here is that we want to keep the button down if the
572 * popup is popped up.
574 return combo->current_button != 0;
578 gtk_combo_update_entry (GtkList * list, GtkCombo * combo)
582 gtk_grab_remove (GTK_WIDGET (combo));
583 gtk_signal_handler_block (GTK_OBJECT (list), combo->list_change_id);
586 text = gtk_combo_func (GTK_LIST_ITEM (list->selection->data));
589 gtk_entry_set_text (GTK_ENTRY (combo->entry), text);
591 gtk_signal_handler_unblock (GTK_OBJECT (list), combo->list_change_id);
595 gtk_combo_update_list (GtkEntry * entry, GtkCombo * combo)
597 GtkList *list = GTK_LIST (combo->list);
598 GList *slist = list->selection;
601 gtk_grab_remove (GTK_WIDGET (combo));
603 gtk_signal_handler_block (GTK_OBJECT (entry), combo->entry_change_id);
604 if (slist && slist->data)
605 gtk_list_unselect_child (list, GTK_WIDGET (slist->data));
606 li = gtk_combo_find (combo);
608 gtk_list_select_child (list, GTK_WIDGET (li));
609 gtk_signal_handler_unblock (GTK_OBJECT (entry), combo->entry_change_id);
613 gtk_combo_button_press (GtkWidget * widget, GdkEvent * event, GtkCombo * combo)
617 child = gtk_get_event_widget (event);
619 /* We don't ask for button press events on the grab widget, so
620 * if an event is reported directly to the grab widget, it must
621 * be on a window outside the application (and thus we remove
622 * the popup window). Otherwise, we check if the widget is a child
623 * of the grab widget, and only remove the popup window if it
632 child = child->parent;
636 gtk_combo_popdown_list (combo);
642 gtk_combo_button_event_after (GtkWidget *widget,
648 if (event->type != GDK_BUTTON_RELEASE)
651 if ((combo->current_button != 0) && (event->button.button == 1))
653 /* This was the initial button press */
655 combo->current_button = 0;
657 /* Check to see if we released inside the button */
658 child = gtk_get_event_widget ((GdkEvent*) event);
660 while (child && child != (combo->button))
661 child = child->parent;
663 if (child == combo->button)
665 gtk_grab_add (combo->popwin);
666 gdk_pointer_grab (combo->popwin->window, TRUE,
667 GDK_BUTTON_PRESS_MASK |
668 GDK_BUTTON_RELEASE_MASK |
669 GDK_POINTER_MOTION_MASK,
670 NULL, NULL, GDK_CURRENT_TIME);
675 gtk_combo_popdown_list (combo);
679 gtk_combo_list_enter (GtkWidget *widget,
680 GdkEventCrossing *event,
683 GtkWidget *event_widget;
685 event_widget = gtk_get_event_widget ((GdkEvent*) event);
687 if ((event_widget == combo->list) &&
688 (combo->current_button != 0) &&
689 (!GTK_WIDGET_HAS_GRAB (combo->list)))
693 GdkModifierType mask;
695 gtk_grab_remove (combo->popwin);
697 /* Transfer the grab over to the list by synthesizing
698 * a button press event
700 gdk_window_get_pointer (combo->list->window, &x, &y, &mask);
702 tmp_event.button.type = GDK_BUTTON_PRESS;
703 tmp_event.button.window = combo->list->window;
704 tmp_event.button.send_event = TRUE;
705 tmp_event.button.time = GDK_CURRENT_TIME; /* bad */
706 tmp_event.button.x = x;
707 tmp_event.button.y = y;
708 /* We leave all the XInput fields unfilled here, in the expectation
709 * that GtkList doesn't care.
711 tmp_event.button.button = combo->current_button;
712 tmp_event.button.state = mask;
714 gtk_widget_event (combo->list, &tmp_event);
721 gtk_combo_list_key_press (GtkWidget * widget, GdkEventKey * event, GtkCombo * combo)
723 if (event->keyval == GDK_Escape)
725 if (GTK_WIDGET_HAS_GRAB (combo->list))
726 gtk_list_end_drag_selection (GTK_LIST (combo->list));
728 gtk_combo_popdown_list (combo);
736 gtk_combo_init (GtkCombo * combo)
740 GtkWidget *event_box;
743 combo->case_sensitive = FALSE;
744 combo->value_in_list = FALSE;
745 combo->ok_if_empty = TRUE;
746 combo->use_arrows = TRUE;
747 combo->use_arrows_always = FALSE;
748 combo->entry = gtk_entry_new ();
749 combo->button = gtk_button_new ();
750 combo->current_button = 0;
751 arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_OUT);
752 gtk_widget_show (arrow);
753 gtk_container_add (GTK_CONTAINER (combo->button), arrow);
754 gtk_box_pack_start (GTK_BOX (combo), combo->entry, TRUE, TRUE, 0);
755 gtk_box_pack_end (GTK_BOX (combo), combo->button, FALSE, FALSE, 0);
756 GTK_WIDGET_UNSET_FLAGS (combo->button, GTK_CAN_FOCUS);
757 gtk_widget_show (combo->entry);
758 gtk_widget_show (combo->button);
759 combo->entry_change_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "changed",
760 (GtkSignalFunc) gtk_combo_update_list, combo);
761 gtk_signal_connect (GTK_OBJECT (combo->entry), "key_press_event",
762 (GtkSignalFunc) gtk_combo_entry_key_press, combo);
763 gtk_signal_connect_after (GTK_OBJECT (combo->entry), "focus_out_event",
764 (GtkSignalFunc) gtk_combo_entry_focus_out, combo);
765 combo->activate_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "activate",
766 (GtkSignalFunc) gtk_combo_activate, combo);
767 gtk_signal_connect (GTK_OBJECT (combo->button), "button_press_event",
768 (GtkSignalFunc) gtk_combo_popup_button_press, combo);
769 gtk_signal_connect (GTK_OBJECT (combo->button), "leave_notify_event",
770 (GtkSignalFunc) gtk_combo_popup_button_leave, combo);
772 combo->popwin = gtk_window_new (GTK_WINDOW_POPUP);
773 gtk_widget_ref (combo->popwin);
774 gtk_window_set_resizable (GTK_WINDOW (combo->popwin), FALSE);
776 gtk_signal_connect (GTK_OBJECT (combo->popwin), "key_press_event",
777 GTK_SIGNAL_FUNC (gtk_combo_window_key_press), combo);
779 gtk_widget_set_events (combo->popwin, GDK_KEY_PRESS_MASK);
781 event_box = gtk_event_box_new ();
782 gtk_container_add (GTK_CONTAINER (combo->popwin), event_box);
783 gtk_widget_show (event_box);
785 gtk_widget_realize (event_box);
786 cursor = gdk_cursor_new (GDK_TOP_LEFT_ARROW);
787 gdk_window_set_cursor (event_box->window, cursor);
788 gdk_cursor_destroy (cursor);
790 frame = gtk_frame_new (NULL);
791 gtk_container_add (GTK_CONTAINER (event_box), frame);
792 gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
793 gtk_widget_show (frame);
795 combo->popup = gtk_scrolled_window_new (NULL, NULL);
796 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (combo->popup),
797 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
798 GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (combo->popup)->hscrollbar, GTK_CAN_FOCUS);
799 GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (combo->popup)->vscrollbar, GTK_CAN_FOCUS);
800 gtk_container_add (GTK_CONTAINER (frame), combo->popup);
801 gtk_widget_show (combo->popup);
803 combo->list = gtk_list_new ();
804 /* We'll use enter notify events to figure out when to transfer
805 * the grab to the list
807 gtk_widget_set_events (combo->list, GDK_ENTER_NOTIFY_MASK);
809 gtk_list_set_selection_mode (GTK_LIST(combo->list), GTK_SELECTION_BROWSE);
810 gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (combo->popup), combo->list);
811 gtk_container_set_focus_vadjustment (GTK_CONTAINER (combo->list),
812 gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (combo->popup)));
813 gtk_container_set_focus_hadjustment (GTK_CONTAINER (combo->list),
814 gtk_scrolled_window_get_hadjustment (GTK_SCROLLED_WINDOW (combo->popup)));
815 gtk_widget_show (combo->list);
817 combo->list_change_id = gtk_signal_connect (GTK_OBJECT (combo->list), "selection_changed",
818 (GtkSignalFunc) gtk_combo_update_entry, combo);
819 gtk_signal_connect (GTK_OBJECT (combo->popwin), "key_press_event",
820 (GtkSignalFunc) gtk_combo_list_key_press, combo);
821 gtk_signal_connect (GTK_OBJECT (combo->popwin), "button_press_event",
822 GTK_SIGNAL_FUNC (gtk_combo_button_press), combo);
824 gtk_signal_connect (GTK_OBJECT (combo->list), "event_after",
825 (GtkSignalFunc) gtk_combo_button_event_after, combo);
826 /* We connect here on the button, because we'll have a grab on it
827 * when the event occurs. But we are actually interested in enters
828 * for the combo->list.
830 gtk_signal_connect (GTK_OBJECT (combo->button), "enter_notify_event",
831 GTK_SIGNAL_FUNC (gtk_combo_list_enter), combo);
835 gtk_combo_get_type (void)
837 static GtkType combo_type = 0;
841 static const GtkTypeInfo combo_info =
845 sizeof (GtkComboClass),
846 (GtkClassInitFunc) gtk_combo_class_init,
847 (GtkObjectInitFunc) gtk_combo_init,
848 /* reserved_1 */ NULL,
849 /* reserved_2 */ NULL,
850 (GtkClassInitFunc) NULL,
852 combo_type = gtk_type_unique (GTK_TYPE_HBOX, &combo_info);
860 return GTK_WIDGET (gtk_type_new (GTK_TYPE_COMBO));
864 gtk_combo_set_value_in_list (GtkCombo * combo, gboolean val, gboolean ok_if_empty)
866 g_return_if_fail (GTK_IS_COMBO (combo));
868 ok_if_empty = ok_if_empty != FALSE;
870 g_object_freeze_notify (G_OBJECT (combo));
871 if (combo->value_in_list != val)
873 combo->value_in_list = val;
874 g_object_notify (G_OBJECT (combo), "value_in_list");
876 if (combo->ok_if_empty != ok_if_empty)
878 combo->ok_if_empty = ok_if_empty;
879 g_object_notify (G_OBJECT (combo), "allow_empty");
881 g_object_thaw_notify (G_OBJECT (combo));
885 gtk_combo_set_case_sensitive (GtkCombo * combo, gboolean val)
887 g_return_if_fail (GTK_IS_COMBO (combo));
890 if (combo->case_sensitive != val)
892 combo->case_sensitive = val;
893 g_object_notify (G_OBJECT (combo), "case_sensitive");
898 gtk_combo_set_use_arrows (GtkCombo * combo, gboolean val)
900 g_return_if_fail (GTK_IS_COMBO (combo));
903 if (combo->use_arrows != val)
905 combo->use_arrows = val;
906 g_object_notify (G_OBJECT (combo), "enable_arrow_keys");
911 gtk_combo_set_use_arrows_always (GtkCombo * combo, gboolean val)
913 g_return_if_fail (GTK_IS_COMBO (combo));
916 if (combo->use_arrows_always != val)
918 g_object_freeze_notify (G_OBJECT (combo));
919 combo->use_arrows_always = val;
920 g_object_notify (G_OBJECT (combo), "enable_arrows_always");
922 if (combo->use_arrows != TRUE)
924 combo->use_arrows = TRUE;
925 g_object_notify (G_OBJECT (combo), "enable_arrow_keys");
927 g_object_thaw_notify (G_OBJECT (combo));
932 gtk_combo_set_popdown_strings (GtkCombo * combo, GList * strings)
937 g_return_if_fail (GTK_IS_COMBO (combo));
938 g_return_if_fail (strings != NULL);
940 gtk_list_clear_items (GTK_LIST (combo->list), 0, -1);
944 li = gtk_list_item_new_with_label ((gchar *) list->data);
945 gtk_widget_show (li);
946 gtk_container_add (GTK_CONTAINER (combo->list), li);
952 gtk_combo_item_destroy (GtkObject * object)
956 key = gtk_object_get_data (object, gtk_combo_string_key);
959 gtk_object_remove_data (object, gtk_combo_string_key);
965 gtk_combo_set_item_string (GtkCombo * combo, GtkItem * item, const gchar * item_value)
970 g_return_if_fail (GTK_IS_COMBO (combo));
971 g_return_if_fail (item != NULL);
973 val = gtk_object_get_data (GTK_OBJECT (item), gtk_combo_string_key);
981 val = g_strdup (item_value);
982 gtk_object_set_data (GTK_OBJECT (item), gtk_combo_string_key, val);
984 gtk_signal_connect (GTK_OBJECT (item), "destroy",
985 (GtkSignalFunc) gtk_combo_item_destroy, val);
989 gtk_object_set_data (GTK_OBJECT (item), gtk_combo_string_key, NULL);
991 gtk_signal_disconnect_by_data(GTK_OBJECT (item), val);
996 gtk_combo_size_allocate (GtkWidget *widget,
997 GtkAllocation *allocation)
1001 g_return_if_fail (GTK_IS_COMBO (widget));
1002 g_return_if_fail (allocation != NULL);
1004 GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
1006 combo = GTK_COMBO (widget);
1008 if (combo->entry->allocation.height > combo->entry->requisition.height)
1010 GtkAllocation button_allocation;
1012 button_allocation = combo->button->allocation;
1013 button_allocation.height = combo->entry->requisition.height;
1014 button_allocation.y = combo->entry->allocation.y +
1015 (combo->entry->allocation.height - combo->entry->requisition.height)
1017 gtk_widget_size_allocate (combo->button, &button_allocation);
1022 gtk_combo_disable_activate (GtkCombo* combo)
1024 g_return_if_fail (GTK_IS_COMBO (combo));
1026 if ( combo->activate_id ) {
1027 gtk_signal_disconnect (GTK_OBJECT(combo->entry), combo->activate_id);
1028 combo->activate_id = 0;
1033 gtk_combo_set_property (GObject *object,
1035 const GValue *value,
1038 GtkCombo *combo = GTK_COMBO (object);
1042 case PROP_ENABLE_ARROW_KEYS:
1043 gtk_combo_set_use_arrows (combo, g_value_get_boolean (value));
1045 case PROP_ENABLE_ARROWS_ALWAYS:
1046 gtk_combo_set_use_arrows_always (combo, g_value_get_boolean (value));
1048 case PROP_CASE_SENSITIVE:
1049 gtk_combo_set_case_sensitive (combo, g_value_get_boolean (value));
1051 case PROP_ALLOW_EMPTY:
1052 combo->ok_if_empty = g_value_get_boolean (value);
1054 case PROP_VALUE_IN_LIST:
1055 combo->value_in_list = g_value_get_boolean (value);
1058 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1065 gtk_combo_get_property (GObject *object,
1070 GtkCombo *combo = GTK_COMBO (object);
1074 case PROP_ENABLE_ARROW_KEYS:
1075 g_value_set_boolean (value, combo->use_arrows);
1077 case PROP_ENABLE_ARROWS_ALWAYS:
1078 g_value_set_boolean (value, combo->use_arrows_always);
1080 case PROP_CASE_SENSITIVE:
1081 g_value_set_boolean (value, combo->case_sensitive);
1083 case PROP_ALLOW_EMPTY:
1084 g_value_set_boolean (value, combo->ok_if_empty);
1086 case PROP_VALUE_IN_LIST:
1087 g_value_set_boolean (value, combo->value_in_list);
1090 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);