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"
44 const gchar *gtk_combo_string_key = "gtk-combo-string-value";
46 #define COMBO_LIST_MAX_HEIGHT (400)
47 #define EMPTY_LIST_HEIGHT (15)
49 static void gtk_combo_class_init (GtkComboClass *klass);
50 static void gtk_combo_init (GtkCombo *combo);
51 static void gtk_combo_destroy (GtkObject *combo);
52 static GtkListItem *gtk_combo_find (GtkCombo *combo);
53 static gchar * gtk_combo_func (GtkListItem *li);
54 static gint gtk_combo_focus_idle (GtkCombo *combo);
55 static gint gtk_combo_entry_focus_out (GtkEntry *entry,
58 static void gtk_combo_get_pos (GtkCombo *combo,
63 static void gtk_combo_popup_list (GtkCombo *combo);
64 static void gtk_combo_activate (GtkWidget *widget,
66 static void gtk_combo_popup_button_press (GtkWidget *button,
67 GdkEventButton *event,
69 static void gtk_combo_popup_button_leave (GtkWidget *button,
70 GdkEventCrossing *event,
72 static void gtk_combo_update_entry (GtkList *list,
74 static void gtk_combo_update_list (GtkEntry *entry,
76 static gint gtk_combo_button_press (GtkWidget *widget,
79 static gint gtk_combo_button_release (GtkWidget *widget,
82 static gint gtk_combo_list_enter (GtkWidget *widget,
83 GdkEventCrossing *event,
85 static gint gtk_combo_list_key_press (GtkWidget *widget,
88 static gint gtk_combo_entry_key_press (GtkEntry *widget,
91 static gint gtk_combo_window_key_press (GtkWidget *window,
94 static void gtk_combo_item_destroy (GtkObject *object);
95 static void gtk_combo_size_allocate (GtkWidget *widget,
96 GtkAllocation *allocation);
98 static GtkHBoxClass *parent_class = NULL;
101 gtk_combo_class_init (GtkComboClass * klass)
103 GtkObjectClass *oclass;
104 GtkWidgetClass *widget_class;
106 parent_class = gtk_type_class (GTK_TYPE_HBOX);
107 oclass = (GtkObjectClass *) klass;
108 widget_class = (GtkWidgetClass *) klass;
110 oclass->destroy = gtk_combo_destroy;
112 widget_class->size_allocate = gtk_combo_size_allocate;
116 gtk_combo_destroy (GtkObject *object)
118 GtkCombo *combo = GTK_COMBO (object);
122 gtk_widget_destroy (combo->popwin);
123 gtk_widget_unref (combo->popwin);
124 combo->popwin = NULL;
127 GTK_OBJECT_CLASS (parent_class)->destroy (object);
131 gtk_combo_entry_key_press (GtkEntry * entry, GdkEventKey * event, GtkCombo * combo)
136 if ((event->keyval == GDK_Tab) && (event->state & GDK_MOD1_MASK))
138 GtkEditable *editable = GTK_EDITABLE (entry);
141 gchar* nprefix = NULL;
144 if ( !GTK_LIST (combo->list)->children )
147 gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "key_press_event");
149 cmpl = g_completion_new ((GCompletionFunc)gtk_combo_func);
150 g_completion_add_items (cmpl, GTK_LIST (combo->list)->children);
152 pos = gtk_editable_get_position (editable);
153 prefix = gtk_editable_get_chars (editable, 0, pos);
155 g_completion_complete(cmpl, prefix, &nprefix);
157 if (nprefix && strlen (nprefix) > strlen (prefix))
159 gtk_editable_insert_text (editable, nprefix + pos,
160 strlen (nprefix) - strlen (prefix), &pos);
161 gtk_editable_set_position (editable, pos);
167 g_completion_free (cmpl);
172 if (!combo->use_arrows || !GTK_LIST (combo->list)->children)
175 li = g_list_find (GTK_LIST (combo->list)->children, gtk_combo_find (combo));
177 if ((event->keyval == GDK_Up)
178 || (event->keyval == GDK_KP_Up)
179 || ((event->state & GDK_MOD1_MASK) && ((event->keyval == 'p') || (event->keyval == 'P'))))
183 if (!li && combo->use_arrows_always)
185 li = g_list_last (GTK_LIST (combo->list)->children);
189 gtk_list_select_child (GTK_LIST (combo->list), GTK_WIDGET (li->data));
190 gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "key_press_event");
194 else if ((event->keyval == GDK_Down)
195 || (event->keyval == GDK_KP_Down)
196 || ((event->state & GDK_MOD1_MASK) && ((event->keyval == 'n') || (event->keyval == 'N'))))
200 if (!li && combo->use_arrows_always)
202 li = GTK_LIST (combo->list)->children;
206 gtk_list_select_child (GTK_LIST (combo->list), GTK_WIDGET (li->data));
207 gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "key_press_event");
215 gtk_combo_window_key_press (GtkWidget *window,
221 if (event->keyval == GDK_Return || event->keyval == GDK_KP_Enter)
223 if (GTK_WIDGET_VISIBLE (combo->popwin))
225 gtk_widget_hide (combo->popwin);
227 if (GTK_WIDGET_HAS_GRAB (combo->popwin))
229 gtk_grab_remove (combo->popwin);
230 gdk_pointer_ungrab (event->time);
234 gtk_signal_emit_stop_by_name (GTK_OBJECT (window), "key_press_event");
243 gtk_combo_find (GtkCombo * combo)
248 int (*string_compare) (const char *, const char *);
250 if (combo->case_sensitive)
251 string_compare = strcmp;
253 string_compare = g_strcasecmp;
255 text = gtk_entry_get_text (GTK_ENTRY (combo->entry));
256 clist = GTK_LIST (combo->list)->children;
258 while (clist && clist->data)
260 ltext = gtk_combo_func (GTK_LIST_ITEM (clist->data));
263 if (!(*string_compare) (ltext, text))
264 return (GtkListItem *) clist->data;
272 gtk_combo_func (GtkListItem * li)
277 ltext = (gchar *) gtk_object_get_data (GTK_OBJECT (li), gtk_combo_string_key);
280 label = GTK_BIN (li)->child;
281 if (!label || !GTK_IS_LABEL (label))
283 gtk_label_get (GTK_LABEL (label), <ext);
289 gtk_combo_focus_idle (GtkCombo * combo)
293 GDK_THREADS_ENTER ();
294 gtk_widget_grab_focus (combo->entry);
295 GDK_THREADS_LEAVE ();
301 gtk_combo_entry_focus_out (GtkEntry * entry, GdkEventFocus * event, GtkCombo * combo)
304 if (combo->value_in_list && !gtk_combo_find (combo))
306 /* gdk_beep(); *//* this can be annoying */
307 if (combo->ok_if_empty && !strcmp (gtk_entry_get_text (entry), ""))
310 printf ("INVALID ENTRY: `%s'\n", gtk_entry_get_text (entry));
312 gtk_grab_add (GTK_WIDGET (combo));
313 /* this is needed because if we call gtk_widget_grab_focus()
314 it isn't guaranteed it's the *last* call before the main-loop,
315 so the focus can be lost anyway...
316 the signal_emit_stop doesn't seem to work either...
318 gtk_idle_add ((GtkFunction) gtk_combo_focus_idle, combo);
319 /*gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "focus_out_event"); */
326 gtk_combo_get_pos (GtkCombo * combo, gint * x, gint * y, gint * height, gint * width)
330 GtkScrolledWindow *popup;
333 GtkRequisition list_requisition;
334 gboolean show_hscroll = FALSE;
335 gboolean show_vscroll = FALSE;
343 widget = GTK_WIDGET(combo);
344 popup = GTK_SCROLLED_WINDOW (combo->popup);
345 popwin = GTK_BIN (combo->popwin);
347 gdk_window_get_origin (combo->entry->window, x, y);
348 real_height = MIN (combo->entry->requisition.height,
349 combo->entry->allocation.height);
351 avail_height = gdk_screen_height () - *y;
353 gtk_widget_size_request (combo->list, &list_requisition);
354 min_height = MIN (list_requisition.height,
355 popup->vscrollbar->requisition.height);
356 if (!GTK_LIST (combo->list)->children)
357 list_requisition.height += EMPTY_LIST_HEIGHT;
359 alloc_width = (widget->allocation.width -
360 2 * popwin->child->style->xthickness -
361 2 * GTK_CONTAINER (popwin->child)->border_width -
362 2 * GTK_CONTAINER (combo->popup)->border_width -
363 2 * GTK_CONTAINER (GTK_BIN (popup)->child)->border_width -
364 2 * GTK_BIN (popup)->child->style->xthickness);
366 work_height = (2 * popwin->child->style->ythickness +
367 2 * GTK_CONTAINER (popwin->child)->border_width +
368 2 * GTK_CONTAINER (combo->popup)->border_width +
369 2 * GTK_CONTAINER (GTK_BIN (popup)->child)->border_width +
370 2 * GTK_BIN (popup)->child->style->xthickness);
374 old_width = alloc_width;
375 old_height = work_height;
378 alloc_width < list_requisition.width)
380 work_height += (popup->hscrollbar->requisition.height +
381 GTK_SCROLLED_WINDOW_GET_CLASS (combo->popup)->scrollbar_spacing);
385 work_height + list_requisition.height > avail_height)
387 if (work_height + min_height > avail_height &&
388 *y - real_height > avail_height)
390 *y -= (work_height + list_requisition.height + real_height);
393 alloc_width -= (popup->vscrollbar->requisition.width +
394 GTK_SCROLLED_WINDOW_GET_CLASS (combo->popup)->scrollbar_spacing);
397 } while (old_width != alloc_width || old_height != work_height);
399 *width = widget->allocation.width;
401 *height = avail_height;
403 *height = work_height + list_requisition.height;
410 gtk_combo_popup_list (GtkCombo * combo)
412 gint height, width, x, y;
413 gint old_width, old_height;
415 old_width = combo->popwin->allocation.width;
416 old_height = combo->popwin->allocation.height;
418 gtk_combo_get_pos (combo, &x, &y, &height, &width);
420 /* workaround for gtk_scrolled_window_size_allocate bug */
421 if (old_width != width || old_height != height)
423 gtk_widget_hide (GTK_SCROLLED_WINDOW (combo->popup)->hscrollbar);
424 gtk_widget_hide (GTK_SCROLLED_WINDOW (combo->popup)->vscrollbar);
427 gtk_widget_set_uposition (combo->popwin, x, y);
428 gtk_widget_set_usize (combo->popwin, width, height);
429 gtk_widget_realize (combo->popwin);
430 gdk_window_resize (combo->popwin->window, width, height);
431 gtk_widget_show (combo->popwin);
433 gtk_widget_grab_focus (combo->popwin);
437 gtk_combo_activate (GtkWidget *widget,
440 gtk_combo_popup_list (combo);
442 if (!GTK_WIDGET_HAS_FOCUS (combo->entry))
443 gtk_widget_grab_focus (combo->entry);
445 gtk_grab_add (combo->popwin);
446 gdk_pointer_grab (combo->popwin->window, TRUE,
447 GDK_BUTTON_PRESS_MASK |
448 GDK_BUTTON_RELEASE_MASK |
449 GDK_POINTER_MOTION_MASK,
450 NULL, NULL, GDK_CURRENT_TIME);
454 gtk_combo_popup_button_press (GtkWidget *button,
455 GdkEventButton *event,
458 if (!GTK_WIDGET_HAS_FOCUS (combo->entry))
459 gtk_widget_grab_focus (combo->entry);
460 if (!combo->current_button && (event->button == 1))
461 gtk_combo_popup_list (combo);
463 combo->current_button = event->button;
465 GTK_LIST (combo->list)->drag_selection = TRUE;
466 gdk_pointer_grab (combo->list->window, TRUE,
467 GDK_POINTER_MOTION_HINT_MASK |
468 GDK_BUTTON1_MOTION_MASK |
469 GDK_BUTTON_RELEASE_MASK,
470 NULL, NULL, event->time);
471 gtk_grab_add (combo->list);
475 gtk_combo_popup_button_leave (GtkWidget *button,
476 GdkEventCrossing *event,
479 if (combo->current_button)
480 gtk_signal_emit_stop_by_name (GTK_OBJECT (button), "leave_notify_event");
485 gtk_combo_update_entry (GtkList * list, GtkCombo * combo)
489 gtk_grab_remove (GTK_WIDGET (combo));
490 gtk_signal_handler_block (GTK_OBJECT (list), combo->list_change_id);
493 text = gtk_combo_func (GTK_LIST_ITEM (list->selection->data));
496 gtk_entry_set_text (GTK_ENTRY (combo->entry), text);
498 gtk_signal_handler_unblock (GTK_OBJECT (list), combo->list_change_id);
502 gtk_combo_update_list (GtkEntry * entry, GtkCombo * combo)
504 GtkList *list = GTK_LIST (combo->list);
505 GList *slist = list->selection;
508 gtk_grab_remove (GTK_WIDGET (combo));
510 gtk_signal_handler_block (GTK_OBJECT (entry), combo->entry_change_id);
511 if (slist && slist->data)
512 gtk_list_unselect_child (list, GTK_WIDGET (slist->data));
513 li = gtk_combo_find (combo);
515 gtk_list_select_child (list, GTK_WIDGET (li));
516 gtk_signal_handler_unblock (GTK_OBJECT (entry), combo->entry_change_id);
520 gtk_combo_button_press (GtkWidget * widget, GdkEvent * event, GtkCombo * combo)
524 child = gtk_get_event_widget (event);
526 /* We don't ask for button press events on the grab widget, so
527 * if an event is reported directly to the grab widget, it must
528 * be on a window outside the application (and thus we remove
529 * the popup window). Otherwise, we check if the widget is a child
530 * of the grab widget, and only remove the popup window if it
539 child = child->parent;
543 gtk_widget_hide (combo->popwin);
544 gtk_grab_remove (combo->popwin);
545 gdk_pointer_ungrab (event->button.time);
551 gtk_combo_button_release (GtkWidget * widget, GdkEvent * event, GtkCombo * combo)
555 if ((combo->current_button != 0) && (event->button.button == 1))
557 /* This was the initial button press */
559 GdkEventCrossing tmp_event;
561 combo->current_button = 0;
563 if (widget != combo->button)
564 gtk_widget_event (combo->button, event);
566 /* Un-pre-hightlight */
568 tmp_event.type = GDK_LEAVE_NOTIFY;
569 tmp_event.window = combo->button->window;
570 tmp_event.send_event = TRUE;
571 tmp_event.subwindow = NULL;
572 tmp_event.detail = GDK_NOTIFY_ANCESTOR;
574 gtk_widget_event (combo->button, (GdkEvent *)&tmp_event);
576 /* Check to see if we released inside the button */
577 child = gtk_get_event_widget ((GdkEvent*) event);
579 while (child && child != (combo->button))
580 child = child->parent;
582 if (child == combo->button)
584 gtk_grab_add (combo->popwin);
585 gdk_pointer_grab (combo->popwin->window, TRUE,
586 GDK_BUTTON_PRESS_MASK |
587 GDK_BUTTON_RELEASE_MASK |
588 GDK_POINTER_MOTION_MASK,
589 NULL, NULL, GDK_CURRENT_TIME);
595 /* The user has clicked inside the popwin and released */
597 if (GTK_WIDGET_HAS_GRAB (combo->popwin))
599 gtk_grab_remove (combo->popwin);
600 gdk_pointer_ungrab (event->button.time);
604 gtk_widget_hide (combo->popwin);
610 gtk_combo_list_enter (GtkWidget *widget,
611 GdkEventCrossing *event,
614 GtkWidget *event_widget;
616 event_widget = gtk_get_event_widget ((GdkEvent*) event);
618 if ((event_widget == combo->list) &&
619 (combo->current_button != 0) &&
620 (!GTK_WIDGET_HAS_GRAB (combo->list)))
624 GdkModifierType mask;
626 gtk_grab_remove (combo->popwin);
628 /* Transfer the grab over to the list by synthesizing
629 * a button press event
631 gdk_window_get_pointer (combo->list->window, &x, &y, &mask);
633 tmp_event.button.type = GDK_BUTTON_PRESS;
634 tmp_event.button.window = combo->list->window;
635 tmp_event.button.send_event = TRUE;
636 tmp_event.button.time = GDK_CURRENT_TIME; /* bad */
637 tmp_event.button.x = x;
638 tmp_event.button.y = y;
639 /* We leave all the XInput fields unfilled here, in the expectation
640 * that GtkList doesn't care.
642 tmp_event.button.button = combo->current_button;
643 tmp_event.button.state = mask;
645 gtk_widget_event (combo->list, &tmp_event);
652 gtk_combo_list_key_press (GtkWidget * widget, GdkEventKey * event, GtkCombo * combo)
654 if (event->keyval == GDK_Escape)
656 if (GTK_WIDGET_HAS_GRAB (combo->popwin))
658 gtk_grab_remove (combo->popwin);
659 gdk_pointer_ungrab (GDK_CURRENT_TIME);
661 else if (GTK_WIDGET_HAS_GRAB (combo->list))
662 gtk_list_end_drag_selection (GTK_LIST (combo->list));
663 gtk_widget_hide (combo->popwin);
664 if (GTK_WIDGET_HAS_GRAB (combo->button))
666 combo->current_button = 0;
667 GTK_BUTTON (combo->button)->in_button = FALSE;
668 gtk_button_released (GTK_BUTTON (combo->button));
669 gtk_grab_remove (combo->button);
677 gtk_combo_init (GtkCombo * combo)
681 GtkWidget *event_box;
684 combo->case_sensitive = 0;
685 combo->value_in_list = 0;
686 combo->ok_if_empty = 1;
687 combo->use_arrows = 1;
688 combo->use_arrows_always = 0;
689 combo->entry = gtk_entry_new ();
690 combo->button = gtk_button_new ();
691 combo->current_button = 0;
692 arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_OUT);
693 gtk_widget_show (arrow);
694 gtk_container_add (GTK_CONTAINER (combo->button), arrow);
695 gtk_box_pack_start (GTK_BOX (combo), combo->entry, TRUE, TRUE, 0);
696 gtk_box_pack_end (GTK_BOX (combo), combo->button, FALSE, FALSE, 0);
697 GTK_WIDGET_UNSET_FLAGS (combo->button, GTK_CAN_FOCUS);
698 gtk_widget_show (combo->entry);
699 gtk_widget_show (combo->button);
700 combo->entry_change_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "changed",
701 (GtkSignalFunc) gtk_combo_update_list, combo);
702 gtk_signal_connect (GTK_OBJECT (combo->entry), "key_press_event",
703 (GtkSignalFunc) gtk_combo_entry_key_press, combo);
704 gtk_signal_connect_after (GTK_OBJECT (combo->entry), "focus_out_event",
705 (GtkSignalFunc) gtk_combo_entry_focus_out, combo);
706 combo->activate_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "activate",
707 (GtkSignalFunc) gtk_combo_activate, combo);
708 gtk_signal_connect_after (GTK_OBJECT (combo->button), "button_press_event",
709 (GtkSignalFunc) gtk_combo_popup_button_press, combo);
710 /*gtk_signal_connect_after (GTK_OBJECT (combo->button), "button_release_event",
711 (GtkSignalFunc) gtk_combo_button_release, combo);*/
712 gtk_signal_connect (GTK_OBJECT (combo->button), "leave_notify_event",
713 (GtkSignalFunc) gtk_combo_popup_button_leave, combo);
714 /*gtk_signal_connect(GTK_OBJECT(combo->button), "clicked",
715 (GtkSignalFunc)prelight_bug, combo); */
717 combo->popwin = gtk_window_new (GTK_WINDOW_POPUP);
718 gtk_widget_ref (combo->popwin);
719 gtk_window_set_policy (GTK_WINDOW (combo->popwin), 1, 1, 0);
721 gtk_signal_connect (GTK_OBJECT (combo->popwin), "key_press_event",
722 GTK_SIGNAL_FUNC (gtk_combo_window_key_press), combo);
724 gtk_widget_set_events (combo->popwin, GDK_KEY_PRESS_MASK);
726 event_box = gtk_event_box_new ();
727 gtk_container_add (GTK_CONTAINER (combo->popwin), event_box);
728 gtk_widget_show (event_box);
730 gtk_widget_realize (event_box);
731 cursor = gdk_cursor_new (GDK_TOP_LEFT_ARROW);
732 gdk_window_set_cursor (event_box->window, cursor);
733 gdk_cursor_destroy (cursor);
735 frame = gtk_frame_new (NULL);
736 gtk_container_add (GTK_CONTAINER (event_box), frame);
737 gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
738 gtk_widget_show (frame);
740 combo->popup = gtk_scrolled_window_new (NULL, NULL);
741 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (combo->popup),
742 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
743 GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (combo->popup)->hscrollbar, GTK_CAN_FOCUS);
744 GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (combo->popup)->vscrollbar, GTK_CAN_FOCUS);
745 gtk_container_add (GTK_CONTAINER (frame), combo->popup);
746 gtk_widget_show (combo->popup);
748 combo->list = gtk_list_new ();
749 /* We'll use enter notify events to figure out when to transfer
750 * the grab to the list
752 gtk_widget_set_events (combo->list, GDK_ENTER_NOTIFY_MASK);
754 gtk_list_set_selection_mode(GTK_LIST(combo->list), GTK_SELECTION_BROWSE);
755 gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (combo->popup), combo->list);
756 gtk_container_set_focus_vadjustment (GTK_CONTAINER (combo->list),
757 gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (combo->popup)));
758 gtk_container_set_focus_hadjustment (GTK_CONTAINER (combo->list),
759 gtk_scrolled_window_get_hadjustment (GTK_SCROLLED_WINDOW (combo->popup)));
760 gtk_widget_show (combo->list);
762 combo->list_change_id = gtk_signal_connect (GTK_OBJECT (combo->list), "selection_changed",
763 (GtkSignalFunc) gtk_combo_update_entry, combo);
764 gtk_signal_connect (GTK_OBJECT (combo->popwin), "key_press_event",
765 (GtkSignalFunc) gtk_combo_list_key_press, combo);
766 gtk_signal_connect (GTK_OBJECT (combo->popwin), "button_press_event",
767 GTK_SIGNAL_FUNC (gtk_combo_button_press), combo);
769 gtk_signal_connect_after (GTK_OBJECT (combo->list), "button_release_event",
770 GTK_SIGNAL_FUNC (gtk_combo_button_release), combo);
771 /* We connect here on the button, because we'll have a grab on it
772 * when the event occurs. But we are actually interested in enters
773 * for the combo->list.
775 gtk_signal_connect (GTK_OBJECT (combo->button), "enter_notify_event",
776 GTK_SIGNAL_FUNC (gtk_combo_list_enter), combo);
780 gtk_combo_get_type (void)
782 static GtkType combo_type = 0;
786 static const GtkTypeInfo combo_info =
790 sizeof (GtkComboClass),
791 (GtkClassInitFunc) gtk_combo_class_init,
792 (GtkObjectInitFunc) gtk_combo_init,
793 /* reserved_1 */ NULL,
794 /* reserved_2 */ NULL,
795 (GtkClassInitFunc) NULL,
797 combo_type = gtk_type_unique (GTK_TYPE_HBOX, &combo_info);
805 return GTK_WIDGET (gtk_type_new (GTK_TYPE_COMBO));
809 gtk_combo_set_value_in_list (GtkCombo * combo, gint val, gint ok_if_empty)
811 g_return_if_fail (combo != NULL);
812 g_return_if_fail (GTK_IS_COMBO (combo));
814 combo->value_in_list = val;
815 combo->ok_if_empty = ok_if_empty;
819 gtk_combo_set_case_sensitive (GtkCombo * combo, gint val)
821 g_return_if_fail (combo != NULL);
822 g_return_if_fail (GTK_IS_COMBO (combo));
824 combo->case_sensitive = val;
828 gtk_combo_set_use_arrows (GtkCombo * combo, gint val)
830 g_return_if_fail (combo != NULL);
831 g_return_if_fail (GTK_IS_COMBO (combo));
833 combo->use_arrows = val;
837 gtk_combo_set_use_arrows_always (GtkCombo * combo, gint val)
839 g_return_if_fail (combo != NULL);
840 g_return_if_fail (GTK_IS_COMBO (combo));
842 combo->use_arrows_always = val;
843 combo->use_arrows = 1;
847 gtk_combo_set_popdown_strings (GtkCombo * combo, GList * strings)
852 g_return_if_fail (combo != NULL);
853 g_return_if_fail (GTK_IS_COMBO (combo));
854 g_return_if_fail (strings != NULL);
856 gtk_list_clear_items (GTK_LIST (combo->list), 0, -1);
860 li = gtk_list_item_new_with_label ((gchar *) list->data);
861 gtk_widget_show (li);
862 gtk_container_add (GTK_CONTAINER (combo->list), li);
868 gtk_combo_item_destroy (GtkObject * object)
872 key = gtk_object_get_data (object, gtk_combo_string_key);
875 gtk_object_remove_data (object, gtk_combo_string_key);
881 gtk_combo_set_item_string (GtkCombo * combo, GtkItem * item, const gchar * item_value)
886 g_return_if_fail (combo != NULL);
887 g_return_if_fail (GTK_IS_COMBO (combo));
888 g_return_if_fail (item != NULL);
890 val = gtk_object_get_data (GTK_OBJECT (item), gtk_combo_string_key);
898 val = g_strdup(item_value);
899 gtk_object_set_data (GTK_OBJECT (item), gtk_combo_string_key, val);
901 gtk_signal_connect (GTK_OBJECT (item), "destroy",
902 (GtkSignalFunc) gtk_combo_item_destroy, val);
906 gtk_object_set_data (GTK_OBJECT (item), gtk_combo_string_key, NULL);
908 gtk_signal_disconnect_by_data(GTK_OBJECT (item), val);
913 gtk_combo_size_allocate (GtkWidget *widget,
914 GtkAllocation *allocation)
918 g_return_if_fail (widget != NULL);
919 g_return_if_fail (GTK_IS_COMBO (widget));
920 g_return_if_fail (allocation != NULL);
922 GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
924 combo = GTK_COMBO (widget);
926 if (combo->entry->allocation.height > combo->entry->requisition.height)
928 GtkAllocation button_allocation;
930 button_allocation = combo->button->allocation;
931 button_allocation.height = combo->entry->requisition.height;
932 button_allocation.y = combo->entry->allocation.y +
933 (combo->entry->allocation.height - combo->entry->requisition.height)
935 gtk_widget_size_allocate (combo->button, &button_allocation);
940 gtk_combo_disable_activate (GtkCombo* combo)
942 g_return_if_fail (combo != NULL);
943 g_return_if_fail (GTK_IS_COMBO (combo));
945 if ( combo->activate_id ) {
946 gtk_signal_disconnect(GTK_OBJECT(combo->entry), combo->activate_id);
947 combo->activate_id = 0;