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/.
33 #include "gtkeventbox.h"
34 #include "gtkbutton.h"
35 #include "gtklistitem.h"
36 #include "gtkscrolledwindow.h"
38 #include "gtksignal.h"
39 #include "gtkwindow.h"
40 #include "gdk/gdkkeysyms.h"
45 const gchar *gtk_combo_string_key = "gtk-combo-string-value";
47 #define COMBO_LIST_MAX_HEIGHT (400)
48 #define EMPTY_LIST_HEIGHT (15)
52 PROP_ENABLE_ARROW_KEYS,
53 PROP_ENABLE_ARROWS_ALWAYS,
57 static void gtk_combo_class_init (GtkComboClass *klass);
58 static void gtk_combo_init (GtkCombo *combo);
59 static void gtk_combo_destroy (GtkObject *combo);
60 static GtkListItem *gtk_combo_find (GtkCombo *combo);
61 static gchar * gtk_combo_func (GtkListItem *li);
62 static gint gtk_combo_focus_idle (GtkCombo *combo);
63 static gint gtk_combo_entry_focus_out (GtkEntry *entry,
66 static void gtk_combo_get_pos (GtkCombo *combo,
71 static void gtk_combo_popup_list (GtkCombo *combo);
72 static void gtk_combo_activate (GtkWidget *widget,
74 static void gtk_combo_popup_button_press (GtkWidget *button,
75 GdkEventButton *event,
77 static void gtk_combo_popup_button_leave (GtkWidget *button,
78 GdkEventCrossing *event,
80 static void gtk_combo_update_entry (GtkList *list,
82 static void gtk_combo_update_list (GtkEntry *entry,
84 static gint gtk_combo_button_press (GtkWidget *widget,
87 static gint gtk_combo_button_release (GtkWidget *widget,
90 static gint gtk_combo_list_enter (GtkWidget *widget,
91 GdkEventCrossing *event,
93 static gint gtk_combo_list_key_press (GtkWidget *widget,
96 static gint gtk_combo_entry_key_press (GtkEntry *widget,
99 static gint gtk_combo_window_key_press (GtkWidget *window,
102 static void gtk_combo_item_destroy (GtkObject *object);
103 static void gtk_combo_size_allocate (GtkWidget *widget,
104 GtkAllocation *allocation);
105 static void gtk_combo_set_property (GObject *object,
109 static void gtk_combo_get_property (GObject *object,
113 static GtkHBoxClass *parent_class = NULL;
116 gtk_combo_class_init (GtkComboClass * klass)
118 GObjectClass *gobject_class;
119 GtkObjectClass *oclass;
120 GtkWidgetClass *widget_class;
122 gobject_class = (GObjectClass *) klass;
123 parent_class = gtk_type_class (GTK_TYPE_HBOX);
124 oclass = (GtkObjectClass *) klass;
125 widget_class = (GtkWidgetClass *) klass;
127 gobject_class->set_property = gtk_combo_set_property;
128 gobject_class->get_property = gtk_combo_get_property;
130 g_object_class_install_property (gobject_class,
131 PROP_ENABLE_ARROW_KEYS,
132 g_param_spec_boolean ("enable_arrow_keys",
133 _("Enable arrow keys"),
134 _("Whether the arrow keys move through the list of items"),
136 G_PARAM_READABLE | G_PARAM_WRITABLE));
137 g_object_class_install_property (gobject_class,
138 PROP_ENABLE_ARROWS_ALWAYS,
139 g_param_spec_boolean ("enable_arrows_always",
140 _("Always enable arrows"),
141 _("Whether the arrow keys work, even if the entry contents are not in the list"),
143 G_PARAM_READABLE | G_PARAM_WRITABLE));
144 g_object_class_install_property (gobject_class,
146 g_param_spec_boolean ("case_sensitive",
148 _("Whether list item matching is case sensitive"),
150 G_PARAM_READABLE | G_PARAM_WRITABLE));
153 oclass->destroy = gtk_combo_destroy;
155 widget_class->size_allocate = gtk_combo_size_allocate;
159 gtk_combo_destroy (GtkObject *object)
161 GtkCombo *combo = GTK_COMBO (object);
165 gtk_widget_destroy (combo->popwin);
166 gtk_widget_unref (combo->popwin);
167 combo->popwin = NULL;
170 GTK_OBJECT_CLASS (parent_class)->destroy (object);
174 gtk_combo_entry_key_press (GtkEntry * entry, GdkEventKey * event, GtkCombo * combo)
179 if ((event->keyval == GDK_Tab) && (event->state & GDK_MOD1_MASK))
181 GtkEditable *editable = GTK_EDITABLE (entry);
184 gchar* nprefix = NULL;
187 if ( !GTK_LIST (combo->list)->children )
190 gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "key_press_event");
192 cmpl = g_completion_new ((GCompletionFunc)gtk_combo_func);
193 g_completion_add_items (cmpl, GTK_LIST (combo->list)->children);
195 pos = gtk_editable_get_position (editable);
196 prefix = gtk_editable_get_chars (editable, 0, pos);
198 g_completion_complete(cmpl, prefix, &nprefix);
200 if (nprefix && strlen (nprefix) > strlen (prefix))
202 gtk_editable_insert_text (editable, nprefix + pos,
203 strlen (nprefix) - strlen (prefix), &pos);
204 gtk_editable_set_position (editable, pos);
210 g_completion_free (cmpl);
215 if (!combo->use_arrows || !GTK_LIST (combo->list)->children)
218 li = g_list_find (GTK_LIST (combo->list)->children, gtk_combo_find (combo));
220 if ((event->keyval == GDK_Up)
221 || (event->keyval == GDK_KP_Up)
222 || ((event->state & GDK_MOD1_MASK) && ((event->keyval == 'p') || (event->keyval == 'P'))))
226 if (!li && combo->use_arrows_always)
228 li = g_list_last (GTK_LIST (combo->list)->children);
232 gtk_list_select_child (GTK_LIST (combo->list), GTK_WIDGET (li->data));
233 gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "key_press_event");
237 else if ((event->keyval == GDK_Down)
238 || (event->keyval == GDK_KP_Down)
239 || ((event->state & GDK_MOD1_MASK) && ((event->keyval == 'n') || (event->keyval == 'N'))))
243 if (!li && combo->use_arrows_always)
245 li = GTK_LIST (combo->list)->children;
249 gtk_list_select_child (GTK_LIST (combo->list), GTK_WIDGET (li->data));
250 gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "key_press_event");
258 gtk_combo_window_key_press (GtkWidget *window,
264 if (event->keyval == GDK_Return || event->keyval == GDK_KP_Enter)
266 if (GTK_WIDGET_VISIBLE (combo->popwin))
268 gtk_widget_hide (combo->popwin);
270 if (GTK_WIDGET_HAS_GRAB (combo->popwin))
272 gtk_grab_remove (combo->popwin);
273 gdk_pointer_ungrab (event->time);
277 gtk_signal_emit_stop_by_name (GTK_OBJECT (window), "key_press_event");
286 gtk_combo_find (GtkCombo * combo)
291 int (*string_compare) (const char *, const char *);
293 if (combo->case_sensitive)
294 string_compare = strcmp;
296 string_compare = g_strcasecmp;
298 text = gtk_entry_get_text (GTK_ENTRY (combo->entry));
299 clist = GTK_LIST (combo->list)->children;
301 while (clist && clist->data)
303 ltext = gtk_combo_func (GTK_LIST_ITEM (clist->data));
306 if (!(*string_compare) (ltext, text))
307 return (GtkListItem *) clist->data;
315 gtk_combo_func (GtkListItem * li)
320 ltext = (gchar *) gtk_object_get_data (GTK_OBJECT (li), gtk_combo_string_key);
323 label = GTK_BIN (li)->child;
324 if (!label || !GTK_IS_LABEL (label))
326 gtk_label_get (GTK_LABEL (label), <ext);
332 gtk_combo_focus_idle (GtkCombo * combo)
336 GDK_THREADS_ENTER ();
337 gtk_widget_grab_focus (combo->entry);
338 GDK_THREADS_LEAVE ();
344 gtk_combo_entry_focus_out (GtkEntry * entry, GdkEventFocus * event, GtkCombo * combo)
347 if (combo->value_in_list && !gtk_combo_find (combo))
349 /* gdk_beep(); *//* this can be annoying */
350 if (combo->ok_if_empty && !strcmp (gtk_entry_get_text (entry), ""))
353 printf ("INVALID ENTRY: `%s'\n", gtk_entry_get_text (entry));
355 gtk_grab_add (GTK_WIDGET (combo));
356 /* this is needed because if we call gtk_widget_grab_focus()
357 it isn't guaranteed it's the *last* call before the main-loop,
358 so the focus can be lost anyway...
359 the signal_emit_stop doesn't seem to work either...
361 gtk_idle_add ((GtkFunction) gtk_combo_focus_idle, combo);
362 /*gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "focus_out_event"); */
369 gtk_combo_get_pos (GtkCombo * combo, gint * x, gint * y, gint * height, gint * width)
373 GtkScrolledWindow *popup;
376 GtkRequisition list_requisition;
377 gboolean show_hscroll = FALSE;
378 gboolean show_vscroll = FALSE;
386 widget = GTK_WIDGET(combo);
387 popup = GTK_SCROLLED_WINDOW (combo->popup);
388 popwin = GTK_BIN (combo->popwin);
390 gdk_window_get_origin (combo->entry->window, x, y);
391 real_height = MIN (combo->entry->requisition.height,
392 combo->entry->allocation.height);
394 avail_height = gdk_screen_height () - *y;
396 gtk_widget_size_request (combo->list, &list_requisition);
397 min_height = MIN (list_requisition.height,
398 popup->vscrollbar->requisition.height);
399 if (!GTK_LIST (combo->list)->children)
400 list_requisition.height += EMPTY_LIST_HEIGHT;
402 alloc_width = (widget->allocation.width -
403 2 * popwin->child->style->xthickness -
404 2 * GTK_CONTAINER (popwin->child)->border_width -
405 2 * GTK_CONTAINER (combo->popup)->border_width -
406 2 * GTK_CONTAINER (GTK_BIN (popup)->child)->border_width -
407 2 * GTK_BIN (popup)->child->style->xthickness);
409 work_height = (2 * popwin->child->style->ythickness +
410 2 * GTK_CONTAINER (popwin->child)->border_width +
411 2 * GTK_CONTAINER (combo->popup)->border_width +
412 2 * GTK_CONTAINER (GTK_BIN (popup)->child)->border_width +
413 2 * GTK_BIN (popup)->child->style->xthickness);
417 old_width = alloc_width;
418 old_height = work_height;
421 alloc_width < list_requisition.width)
423 work_height += (popup->hscrollbar->requisition.height +
424 GTK_SCROLLED_WINDOW_GET_CLASS (combo->popup)->scrollbar_spacing);
428 work_height + list_requisition.height > avail_height)
430 if (work_height + min_height > avail_height &&
431 *y - real_height > avail_height)
433 *y -= (work_height + list_requisition.height + real_height);
436 alloc_width -= (popup->vscrollbar->requisition.width +
437 GTK_SCROLLED_WINDOW_GET_CLASS (combo->popup)->scrollbar_spacing);
440 } while (old_width != alloc_width || old_height != work_height);
442 *width = widget->allocation.width;
444 *height = avail_height;
446 *height = work_height + list_requisition.height;
453 gtk_combo_popup_list (GtkCombo * combo)
455 gint height, width, x, y;
456 gint old_width, old_height;
458 old_width = combo->popwin->allocation.width;
459 old_height = combo->popwin->allocation.height;
461 gtk_combo_get_pos (combo, &x, &y, &height, &width);
463 /* workaround for gtk_scrolled_window_size_allocate bug */
464 if (old_width != width || old_height != height)
466 gtk_widget_hide (GTK_SCROLLED_WINDOW (combo->popup)->hscrollbar);
467 gtk_widget_hide (GTK_SCROLLED_WINDOW (combo->popup)->vscrollbar);
470 gtk_widget_set_uposition (combo->popwin, x, y);
471 gtk_widget_set_usize (combo->popwin, width, height);
472 gtk_widget_realize (combo->popwin);
473 gdk_window_resize (combo->popwin->window, width, height);
474 gtk_widget_show (combo->popwin);
476 gtk_widget_grab_focus (combo->popwin);
480 gtk_combo_activate (GtkWidget *widget,
483 gtk_combo_popup_list (combo);
485 if (!GTK_WIDGET_HAS_FOCUS (combo->entry))
486 gtk_widget_grab_focus (combo->entry);
488 gtk_grab_add (combo->popwin);
489 gdk_pointer_grab (combo->popwin->window, TRUE,
490 GDK_BUTTON_PRESS_MASK |
491 GDK_BUTTON_RELEASE_MASK |
492 GDK_POINTER_MOTION_MASK,
493 NULL, NULL, GDK_CURRENT_TIME);
497 gtk_combo_popup_button_press (GtkWidget *button,
498 GdkEventButton *event,
501 if (!GTK_WIDGET_HAS_FOCUS (combo->entry))
502 gtk_widget_grab_focus (combo->entry);
503 if (!combo->current_button && (event->button == 1))
504 gtk_combo_popup_list (combo);
506 combo->current_button = event->button;
508 GTK_LIST (combo->list)->drag_selection = TRUE;
509 gdk_pointer_grab (combo->list->window, TRUE,
510 GDK_POINTER_MOTION_HINT_MASK |
511 GDK_BUTTON1_MOTION_MASK |
512 GDK_BUTTON_RELEASE_MASK,
513 NULL, NULL, event->time);
514 gtk_grab_add (combo->list);
518 gtk_combo_popup_button_leave (GtkWidget *button,
519 GdkEventCrossing *event,
522 if (combo->current_button)
523 gtk_signal_emit_stop_by_name (GTK_OBJECT (button), "leave_notify_event");
528 gtk_combo_update_entry (GtkList * list, GtkCombo * combo)
532 gtk_grab_remove (GTK_WIDGET (combo));
533 gtk_signal_handler_block (GTK_OBJECT (list), combo->list_change_id);
536 text = gtk_combo_func (GTK_LIST_ITEM (list->selection->data));
539 gtk_entry_set_text (GTK_ENTRY (combo->entry), text);
541 gtk_signal_handler_unblock (GTK_OBJECT (list), combo->list_change_id);
545 gtk_combo_update_list (GtkEntry * entry, GtkCombo * combo)
547 GtkList *list = GTK_LIST (combo->list);
548 GList *slist = list->selection;
551 gtk_grab_remove (GTK_WIDGET (combo));
553 gtk_signal_handler_block (GTK_OBJECT (entry), combo->entry_change_id);
554 if (slist && slist->data)
555 gtk_list_unselect_child (list, GTK_WIDGET (slist->data));
556 li = gtk_combo_find (combo);
558 gtk_list_select_child (list, GTK_WIDGET (li));
559 gtk_signal_handler_unblock (GTK_OBJECT (entry), combo->entry_change_id);
563 gtk_combo_button_press (GtkWidget * widget, GdkEvent * event, GtkCombo * combo)
567 child = gtk_get_event_widget (event);
569 /* We don't ask for button press events on the grab widget, so
570 * if an event is reported directly to the grab widget, it must
571 * be on a window outside the application (and thus we remove
572 * the popup window). Otherwise, we check if the widget is a child
573 * of the grab widget, and only remove the popup window if it
582 child = child->parent;
586 gtk_widget_hide (combo->popwin);
587 gtk_grab_remove (combo->popwin);
588 gdk_pointer_ungrab (event->button.time);
594 gtk_combo_button_release (GtkWidget * widget, GdkEvent * event, GtkCombo * combo)
598 if ((combo->current_button != 0) && (event->button.button == 1))
600 /* This was the initial button press */
602 GdkEventCrossing tmp_event;
604 combo->current_button = 0;
606 if (widget != combo->button)
607 gtk_widget_event (combo->button, event);
609 /* Un-pre-hightlight */
611 tmp_event.type = GDK_LEAVE_NOTIFY;
612 tmp_event.window = combo->button->window;
613 tmp_event.send_event = TRUE;
614 tmp_event.subwindow = NULL;
615 tmp_event.detail = GDK_NOTIFY_ANCESTOR;
617 gtk_widget_event (combo->button, (GdkEvent *)&tmp_event);
619 /* Check to see if we released inside the button */
620 child = gtk_get_event_widget ((GdkEvent*) event);
622 while (child && child != (combo->button))
623 child = child->parent;
625 if (child == combo->button)
627 gtk_grab_add (combo->popwin);
628 gdk_pointer_grab (combo->popwin->window, TRUE,
629 GDK_BUTTON_PRESS_MASK |
630 GDK_BUTTON_RELEASE_MASK |
631 GDK_POINTER_MOTION_MASK,
632 NULL, NULL, GDK_CURRENT_TIME);
638 /* The user has clicked inside the popwin and released */
640 if (GTK_WIDGET_HAS_GRAB (combo->popwin))
642 gtk_grab_remove (combo->popwin);
643 gdk_pointer_ungrab (event->button.time);
647 gtk_widget_hide (combo->popwin);
653 gtk_combo_list_enter (GtkWidget *widget,
654 GdkEventCrossing *event,
657 GtkWidget *event_widget;
659 event_widget = gtk_get_event_widget ((GdkEvent*) event);
661 if ((event_widget == combo->list) &&
662 (combo->current_button != 0) &&
663 (!GTK_WIDGET_HAS_GRAB (combo->list)))
667 GdkModifierType mask;
669 gtk_grab_remove (combo->popwin);
671 /* Transfer the grab over to the list by synthesizing
672 * a button press event
674 gdk_window_get_pointer (combo->list->window, &x, &y, &mask);
676 tmp_event.button.type = GDK_BUTTON_PRESS;
677 tmp_event.button.window = combo->list->window;
678 tmp_event.button.send_event = TRUE;
679 tmp_event.button.time = GDK_CURRENT_TIME; /* bad */
680 tmp_event.button.x = x;
681 tmp_event.button.y = y;
682 /* We leave all the XInput fields unfilled here, in the expectation
683 * that GtkList doesn't care.
685 tmp_event.button.button = combo->current_button;
686 tmp_event.button.state = mask;
688 gtk_widget_event (combo->list, &tmp_event);
695 gtk_combo_list_key_press (GtkWidget * widget, GdkEventKey * event, GtkCombo * combo)
697 if (event->keyval == GDK_Escape)
699 if (GTK_WIDGET_HAS_GRAB (combo->popwin))
701 gtk_grab_remove (combo->popwin);
702 gdk_pointer_ungrab (GDK_CURRENT_TIME);
704 else if (GTK_WIDGET_HAS_GRAB (combo->list))
705 gtk_list_end_drag_selection (GTK_LIST (combo->list));
706 gtk_widget_hide (combo->popwin);
707 if (GTK_WIDGET_HAS_GRAB (combo->button))
709 combo->current_button = 0;
710 GTK_BUTTON (combo->button)->in_button = FALSE;
711 gtk_button_released (GTK_BUTTON (combo->button));
712 gtk_grab_remove (combo->button);
720 gtk_combo_init (GtkCombo * combo)
724 GtkWidget *event_box;
727 combo->case_sensitive = FALSE;
728 combo->value_in_list = FALSE;
729 combo->ok_if_empty = TRUE;
730 combo->use_arrows = TRUE;
731 combo->use_arrows_always = FALSE;
732 combo->entry = gtk_entry_new ();
733 combo->button = gtk_button_new ();
734 combo->current_button = 0;
735 arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_OUT);
736 gtk_widget_show (arrow);
737 gtk_container_add (GTK_CONTAINER (combo->button), arrow);
738 gtk_box_pack_start (GTK_BOX (combo), combo->entry, TRUE, TRUE, 0);
739 gtk_box_pack_end (GTK_BOX (combo), combo->button, FALSE, FALSE, 0);
740 GTK_WIDGET_UNSET_FLAGS (combo->button, GTK_CAN_FOCUS);
741 gtk_widget_show (combo->entry);
742 gtk_widget_show (combo->button);
743 combo->entry_change_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "changed",
744 (GtkSignalFunc) gtk_combo_update_list, combo);
745 gtk_signal_connect (GTK_OBJECT (combo->entry), "key_press_event",
746 (GtkSignalFunc) gtk_combo_entry_key_press, combo);
747 gtk_signal_connect_after (GTK_OBJECT (combo->entry), "focus_out_event",
748 (GtkSignalFunc) gtk_combo_entry_focus_out, combo);
749 combo->activate_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "activate",
750 (GtkSignalFunc) gtk_combo_activate, combo);
751 gtk_signal_connect_after (GTK_OBJECT (combo->button), "button_press_event",
752 (GtkSignalFunc) gtk_combo_popup_button_press, combo);
753 /*gtk_signal_connect_after (GTK_OBJECT (combo->button), "button_release_event",
754 (GtkSignalFunc) gtk_combo_button_release, combo);*/
755 gtk_signal_connect (GTK_OBJECT (combo->button), "leave_notify_event",
756 (GtkSignalFunc) gtk_combo_popup_button_leave, combo);
757 /*gtk_signal_connect(GTK_OBJECT(combo->button), "clicked",
758 (GtkSignalFunc)prelight_bug, combo); */
760 combo->popwin = gtk_window_new (GTK_WINDOW_POPUP);
761 gtk_widget_ref (combo->popwin);
762 gtk_window_set_policy (GTK_WINDOW (combo->popwin), 1, 1, 0);
764 gtk_signal_connect (GTK_OBJECT (combo->popwin), "key_press_event",
765 GTK_SIGNAL_FUNC (gtk_combo_window_key_press), combo);
767 gtk_widget_set_events (combo->popwin, GDK_KEY_PRESS_MASK);
769 event_box = gtk_event_box_new ();
770 gtk_container_add (GTK_CONTAINER (combo->popwin), event_box);
771 gtk_widget_show (event_box);
773 gtk_widget_realize (event_box);
774 cursor = gdk_cursor_new (GDK_TOP_LEFT_ARROW);
775 gdk_window_set_cursor (event_box->window, cursor);
776 gdk_cursor_destroy (cursor);
778 frame = gtk_frame_new (NULL);
779 gtk_container_add (GTK_CONTAINER (event_box), frame);
780 gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
781 gtk_widget_show (frame);
783 combo->popup = gtk_scrolled_window_new (NULL, NULL);
784 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (combo->popup),
785 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
786 GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (combo->popup)->hscrollbar, GTK_CAN_FOCUS);
787 GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (combo->popup)->vscrollbar, GTK_CAN_FOCUS);
788 gtk_container_add (GTK_CONTAINER (frame), combo->popup);
789 gtk_widget_show (combo->popup);
791 combo->list = gtk_list_new ();
792 /* We'll use enter notify events to figure out when to transfer
793 * the grab to the list
795 gtk_widget_set_events (combo->list, GDK_ENTER_NOTIFY_MASK);
797 gtk_list_set_selection_mode(GTK_LIST(combo->list), GTK_SELECTION_BROWSE);
798 gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (combo->popup), combo->list);
799 gtk_container_set_focus_vadjustment (GTK_CONTAINER (combo->list),
800 gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (combo->popup)));
801 gtk_container_set_focus_hadjustment (GTK_CONTAINER (combo->list),
802 gtk_scrolled_window_get_hadjustment (GTK_SCROLLED_WINDOW (combo->popup)));
803 gtk_widget_show (combo->list);
805 combo->list_change_id = gtk_signal_connect (GTK_OBJECT (combo->list), "selection_changed",
806 (GtkSignalFunc) gtk_combo_update_entry, combo);
807 gtk_signal_connect (GTK_OBJECT (combo->popwin), "key_press_event",
808 (GtkSignalFunc) gtk_combo_list_key_press, combo);
809 gtk_signal_connect (GTK_OBJECT (combo->popwin), "button_press_event",
810 GTK_SIGNAL_FUNC (gtk_combo_button_press), combo);
812 gtk_signal_connect_after (GTK_OBJECT (combo->list), "button_release_event",
813 GTK_SIGNAL_FUNC (gtk_combo_button_release), combo);
814 /* We connect here on the button, because we'll have a grab on it
815 * when the event occurs. But we are actually interested in enters
816 * for the combo->list.
818 gtk_signal_connect (GTK_OBJECT (combo->button), "enter_notify_event",
819 GTK_SIGNAL_FUNC (gtk_combo_list_enter), combo);
823 gtk_combo_get_type (void)
825 static GtkType combo_type = 0;
829 static const GtkTypeInfo combo_info =
833 sizeof (GtkComboClass),
834 (GtkClassInitFunc) gtk_combo_class_init,
835 (GtkObjectInitFunc) gtk_combo_init,
836 /* reserved_1 */ NULL,
837 /* reserved_2 */ NULL,
838 (GtkClassInitFunc) NULL,
840 combo_type = gtk_type_unique (GTK_TYPE_HBOX, &combo_info);
848 return GTK_WIDGET (gtk_type_new (GTK_TYPE_COMBO));
852 gtk_combo_set_value_in_list (GtkCombo * combo, gboolean val, gboolean ok_if_empty)
854 g_return_if_fail (combo != NULL);
855 g_return_if_fail (GTK_IS_COMBO (combo));
857 combo->value_in_list = val;
858 combo->ok_if_empty = ok_if_empty;
862 gtk_combo_set_case_sensitive (GtkCombo * combo, gboolean val)
864 g_return_if_fail (combo != NULL);
865 g_return_if_fail (GTK_IS_COMBO (combo));
867 combo->case_sensitive = val;
868 g_object_notify (G_OBJECT (combo), "case_sensitive");
872 gtk_combo_set_use_arrows (GtkCombo * combo, gboolean val)
874 g_return_if_fail (combo != NULL);
875 g_return_if_fail (GTK_IS_COMBO (combo));
877 combo->use_arrows = val;
878 g_object_notify (G_OBJECT (combo), "enable_arrows");
882 gtk_combo_set_use_arrows_always (GtkCombo * combo, gboolean val)
884 g_return_if_fail (combo != NULL);
885 g_return_if_fail (GTK_IS_COMBO (combo));
887 combo->use_arrows_always = val;
888 combo->use_arrows = TRUE;
889 g_object_notify (G_OBJECT (combo), "enable_arrows");
890 g_object_notify (G_OBJECT (combo), "enable_arrows_always");
894 gtk_combo_set_popdown_strings (GtkCombo * combo, GList * strings)
899 g_return_if_fail (combo != NULL);
900 g_return_if_fail (GTK_IS_COMBO (combo));
901 g_return_if_fail (strings != NULL);
903 gtk_list_clear_items (GTK_LIST (combo->list), 0, -1);
907 li = gtk_list_item_new_with_label ((gchar *) list->data);
908 gtk_widget_show (li);
909 gtk_container_add (GTK_CONTAINER (combo->list), li);
915 gtk_combo_item_destroy (GtkObject * object)
919 key = gtk_object_get_data (object, gtk_combo_string_key);
922 gtk_object_remove_data (object, gtk_combo_string_key);
928 gtk_combo_set_item_string (GtkCombo * combo, GtkItem * item, const gchar * item_value)
933 g_return_if_fail (combo != NULL);
934 g_return_if_fail (GTK_IS_COMBO (combo));
935 g_return_if_fail (item != NULL);
937 val = gtk_object_get_data (GTK_OBJECT (item), gtk_combo_string_key);
945 val = g_strdup(item_value);
946 gtk_object_set_data (GTK_OBJECT (item), gtk_combo_string_key, val);
948 gtk_signal_connect (GTK_OBJECT (item), "destroy",
949 (GtkSignalFunc) gtk_combo_item_destroy, val);
953 gtk_object_set_data (GTK_OBJECT (item), gtk_combo_string_key, NULL);
955 gtk_signal_disconnect_by_data(GTK_OBJECT (item), val);
960 gtk_combo_size_allocate (GtkWidget *widget,
961 GtkAllocation *allocation)
965 g_return_if_fail (widget != NULL);
966 g_return_if_fail (GTK_IS_COMBO (widget));
967 g_return_if_fail (allocation != NULL);
969 GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
971 combo = GTK_COMBO (widget);
973 if (combo->entry->allocation.height > combo->entry->requisition.height)
975 GtkAllocation button_allocation;
977 button_allocation = combo->button->allocation;
978 button_allocation.height = combo->entry->requisition.height;
979 button_allocation.y = combo->entry->allocation.y +
980 (combo->entry->allocation.height - combo->entry->requisition.height)
982 gtk_widget_size_allocate (combo->button, &button_allocation);
987 gtk_combo_disable_activate (GtkCombo* combo)
989 g_return_if_fail (combo != NULL);
990 g_return_if_fail (GTK_IS_COMBO (combo));
992 if ( combo->activate_id ) {
993 gtk_signal_disconnect(GTK_OBJECT(combo->entry), combo->activate_id);
994 combo->activate_id = 0;
999 gtk_combo_set_property (GObject *object,
1001 const GValue *value,
1004 GtkCombo *combo = GTK_COMBO (object);
1008 case PROP_ENABLE_ARROW_KEYS:
1009 /* This call does the notification */
1010 gtk_combo_set_use_arrows (combo, g_value_get_boolean (value));
1012 case PROP_ENABLE_ARROWS_ALWAYS:
1013 /* This call does the notification */
1014 gtk_combo_set_use_arrows_always (combo, g_value_get_boolean (value));
1016 case PROP_CASE_SENSITIVE:
1017 /* This call does the notification */
1018 gtk_combo_set_case_sensitive (combo, g_value_get_boolean (value));
1021 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1028 gtk_combo_get_property (GObject *object,
1033 GtkCombo *combo = GTK_COMBO (object);
1037 case PROP_ENABLE_ARROW_KEYS:
1038 g_value_set_boolean (value, combo->use_arrows);
1040 case PROP_ENABLE_ARROWS_ALWAYS:
1041 g_value_set_boolean (value, combo->use_arrows_always);
1043 case PROP_CASE_SENSITIVE:
1044 g_value_set_boolean (value, combo->case_sensitive);
1047 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);