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 gboolean gtk_combo_popup_button_press (GtkWidget *button,
75 GdkEventButton *event,
77 static gboolean 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 ||
180 event->keyval == GDK_ISO_Left_Tab ||
181 event->keyval == GDK_KP_Tab) &&
182 (event->state & GDK_MOD1_MASK))
184 GtkEditable *editable = GTK_EDITABLE (entry);
187 gchar* nprefix = NULL;
190 if ( !GTK_LIST (combo->list)->children )
193 gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "key_press_event");
195 cmpl = g_completion_new ((GCompletionFunc)gtk_combo_func);
196 g_completion_add_items (cmpl, GTK_LIST (combo->list)->children);
198 pos = gtk_editable_get_position (editable);
199 prefix = gtk_editable_get_chars (editable, 0, pos);
201 g_completion_complete (cmpl, prefix, &nprefix);
203 if (nprefix && strlen (nprefix) > strlen (prefix))
205 gtk_editable_insert_text (editable, nprefix + pos,
206 strlen (nprefix) - strlen (prefix), &pos);
207 gtk_editable_set_position (editable, pos);
213 g_completion_free (cmpl);
218 if (!combo->use_arrows || !GTK_LIST (combo->list)->children)
221 li = g_list_find (GTK_LIST (combo->list)->children, gtk_combo_find (combo));
223 if ((event->keyval == GDK_Up)
224 || (event->keyval == GDK_KP_Up)
225 || ((event->state & GDK_MOD1_MASK) && ((event->keyval == 'p') || (event->keyval == 'P'))))
229 if (!li && combo->use_arrows_always)
231 li = g_list_last (GTK_LIST (combo->list)->children);
235 gtk_list_select_child (GTK_LIST (combo->list), GTK_WIDGET (li->data));
236 gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "key_press_event");
240 else if ((event->keyval == GDK_Down)
241 || (event->keyval == GDK_KP_Down)
242 || ((event->state & GDK_MOD1_MASK) && ((event->keyval == 'n') || (event->keyval == 'N'))))
246 if (!li && combo->use_arrows_always)
248 li = GTK_LIST (combo->list)->children;
252 gtk_list_select_child (GTK_LIST (combo->list), GTK_WIDGET (li->data));
253 gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "key_press_event");
261 gtk_combo_window_key_press (GtkWidget *window,
265 if (event->keyval == GDK_Return || event->keyval == GDK_KP_Enter)
267 if (GTK_WIDGET_VISIBLE (combo->popwin))
269 gtk_widget_hide (combo->popwin);
271 if (GTK_WIDGET_HAS_GRAB (combo->popwin))
273 gtk_grab_remove (combo->popwin);
274 gdk_pointer_ungrab (event->time);
278 gtk_signal_emit_stop_by_name (GTK_OBJECT (window), "key_press_event");
287 gtk_combo_find (GtkCombo * combo)
292 int (*string_compare) (const char *, const char *);
294 if (combo->case_sensitive)
295 string_compare = strcmp;
297 string_compare = g_strcasecmp;
299 text = gtk_entry_get_text (GTK_ENTRY (combo->entry));
300 clist = GTK_LIST (combo->list)->children;
302 while (clist && clist->data)
304 ltext = gtk_combo_func (GTK_LIST_ITEM (clist->data));
307 if (!(*string_compare) (ltext, text))
308 return (GtkListItem *) clist->data;
316 gtk_combo_func (GtkListItem * li)
321 ltext = (gchar *) gtk_object_get_data (GTK_OBJECT (li), gtk_combo_string_key);
324 label = GTK_BIN (li)->child;
325 if (!label || !GTK_IS_LABEL (label))
327 gtk_label_get (GTK_LABEL (label), <ext);
333 gtk_combo_focus_idle (GtkCombo * combo)
337 GDK_THREADS_ENTER ();
338 gtk_widget_grab_focus (combo->entry);
339 GDK_THREADS_LEAVE ();
345 gtk_combo_entry_focus_out (GtkEntry * entry, GdkEventFocus * event, GtkCombo * combo)
348 if (combo->value_in_list && !gtk_combo_find (combo))
350 /* gdk_beep(); *//* this can be annoying */
351 if (combo->ok_if_empty && !strcmp (gtk_entry_get_text (entry), ""))
354 printf ("INVALID ENTRY: `%s'\n", gtk_entry_get_text (entry));
356 gtk_grab_add (GTK_WIDGET (combo));
357 /* this is needed because if we call gtk_widget_grab_focus()
358 it isn't guaranteed it's the *last* call before the main-loop,
359 so the focus can be lost anyway...
360 the signal_emit_stop doesn't seem to work either...
362 gtk_idle_add ((GtkFunction) gtk_combo_focus_idle, combo);
363 /*gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "focus_out_event"); */
370 gtk_combo_get_pos (GtkCombo * combo, gint * x, gint * y, gint * height, gint * width)
374 GtkScrolledWindow *popup;
377 GtkRequisition list_requisition;
378 gboolean show_hscroll = FALSE;
379 gboolean show_vscroll = FALSE;
387 widget = GTK_WIDGET (combo);
388 popup = GTK_SCROLLED_WINDOW (combo->popup);
389 popwin = GTK_BIN (combo->popwin);
391 gdk_window_get_origin (combo->entry->window, x, y);
392 real_height = MIN (combo->entry->requisition.height,
393 combo->entry->allocation.height);
395 avail_height = gdk_screen_height () - *y;
397 gtk_widget_size_request (combo->list, &list_requisition);
398 min_height = MIN (list_requisition.height,
399 popup->vscrollbar->requisition.height);
400 if (!GTK_LIST (combo->list)->children)
401 list_requisition.height += EMPTY_LIST_HEIGHT;
403 alloc_width = (widget->allocation.width -
404 2 * popwin->child->style->xthickness -
405 2 * GTK_CONTAINER (popwin->child)->border_width -
406 2 * GTK_CONTAINER (combo->popup)->border_width -
407 2 * GTK_CONTAINER (GTK_BIN (popup)->child)->border_width -
408 2 * GTK_BIN (popup)->child->style->xthickness);
410 work_height = (2 * popwin->child->style->ythickness +
411 2 * GTK_CONTAINER (popwin->child)->border_width +
412 2 * GTK_CONTAINER (combo->popup)->border_width +
413 2 * GTK_CONTAINER (GTK_BIN (popup)->child)->border_width +
414 2 * GTK_BIN (popup)->child->style->xthickness);
418 old_width = alloc_width;
419 old_height = work_height;
422 alloc_width < list_requisition.width)
424 work_height += (popup->hscrollbar->requisition.height +
425 GTK_SCROLLED_WINDOW_GET_CLASS (combo->popup)->scrollbar_spacing);
429 work_height + list_requisition.height > avail_height)
431 if (work_height + min_height > avail_height &&
432 *y - real_height > avail_height)
434 *y -= (work_height + list_requisition.height + real_height);
437 alloc_width -= (popup->vscrollbar->requisition.width +
438 GTK_SCROLLED_WINDOW_GET_CLASS (combo->popup)->scrollbar_spacing);
441 } while (old_width != alloc_width || old_height != work_height);
443 *width = widget->allocation.width;
445 *height = avail_height;
447 *height = work_height + list_requisition.height;
454 gtk_combo_popup_list (GtkCombo * combo)
456 gint height, width, x, y;
457 gint old_width, old_height;
459 old_width = combo->popwin->allocation.width;
460 old_height = combo->popwin->allocation.height;
462 gtk_combo_get_pos (combo, &x, &y, &height, &width);
464 /* workaround for gtk_scrolled_window_size_allocate bug */
465 if (old_width != width || old_height != height)
467 gtk_widget_hide (GTK_SCROLLED_WINDOW (combo->popup)->hscrollbar);
468 gtk_widget_hide (GTK_SCROLLED_WINDOW (combo->popup)->vscrollbar);
471 gtk_widget_set_uposition (combo->popwin, x, y);
472 gtk_widget_set_usize (combo->popwin, width, height);
473 gtk_widget_realize (combo->popwin);
474 gdk_window_resize (combo->popwin->window, width, height);
475 gtk_widget_show (combo->popwin);
477 gtk_widget_grab_focus (combo->popwin);
481 gtk_combo_activate (GtkWidget *widget,
484 gtk_combo_popup_list (combo);
486 if (!GTK_WIDGET_HAS_FOCUS (combo->entry))
487 gtk_widget_grab_focus (combo->entry);
489 gtk_grab_add (combo->popwin);
490 gdk_pointer_grab (combo->popwin->window, TRUE,
491 GDK_BUTTON_PRESS_MASK |
492 GDK_BUTTON_RELEASE_MASK |
493 GDK_POINTER_MOTION_MASK,
494 NULL, NULL, GDK_CURRENT_TIME);
498 gtk_combo_popup_button_press (GtkWidget *button,
499 GdkEventButton *event,
502 if (!GTK_WIDGET_HAS_FOCUS (combo->entry))
503 gtk_widget_grab_focus (combo->entry);
505 if (event->button != 1)
508 combo->current_button = event->button;
510 gtk_combo_popup_list (combo);
511 gtk_button_pressed (GTK_BUTTON (button));
513 gtk_grab_add (combo->popwin);
514 gdk_pointer_grab (combo->popwin->window, TRUE,
515 GDK_BUTTON_PRESS_MASK |
516 GDK_BUTTON_RELEASE_MASK |
517 GDK_POINTER_MOTION_MASK,
518 NULL, NULL, GDK_CURRENT_TIME);
520 GTK_LIST (combo->list)->drag_selection = TRUE;
521 gtk_grab_add (combo->list);
527 gtk_combo_popup_button_leave (GtkWidget *button,
528 GdkEventCrossing *event,
531 return combo->current_button != 0;
536 gtk_combo_update_entry (GtkList * list, GtkCombo * combo)
540 gtk_grab_remove (GTK_WIDGET (combo));
541 gtk_signal_handler_block (GTK_OBJECT (list), combo->list_change_id);
544 text = gtk_combo_func (GTK_LIST_ITEM (list->selection->data));
547 gtk_entry_set_text (GTK_ENTRY (combo->entry), text);
549 gtk_signal_handler_unblock (GTK_OBJECT (list), combo->list_change_id);
553 gtk_combo_update_list (GtkEntry * entry, GtkCombo * combo)
555 GtkList *list = GTK_LIST (combo->list);
556 GList *slist = list->selection;
559 gtk_grab_remove (GTK_WIDGET (combo));
561 gtk_signal_handler_block (GTK_OBJECT (entry), combo->entry_change_id);
562 if (slist && slist->data)
563 gtk_list_unselect_child (list, GTK_WIDGET (slist->data));
564 li = gtk_combo_find (combo);
566 gtk_list_select_child (list, GTK_WIDGET (li));
567 gtk_signal_handler_unblock (GTK_OBJECT (entry), combo->entry_change_id);
571 gtk_combo_button_press (GtkWidget * widget, GdkEvent * event, GtkCombo * combo)
575 child = gtk_get_event_widget (event);
577 /* We don't ask for button press events on the grab widget, so
578 * if an event is reported directly to the grab widget, it must
579 * be on a window outside the application (and thus we remove
580 * the popup window). Otherwise, we check if the widget is a child
581 * of the grab widget, and only remove the popup window if it
590 child = child->parent;
594 gtk_widget_hide (combo->popwin);
595 gtk_grab_remove (combo->popwin);
596 gdk_pointer_ungrab (event->button.time);
602 gtk_combo_button_release (GtkWidget *widget,
608 /* Horrible hack to get connect-after effect without regard to the return value of the default
611 gtk_signal_handler_block_by_func (GTK_OBJECT (widget),
612 GTK_SIGNAL_FUNC (gtk_combo_button_release),
614 gtk_widget_event (widget, event);
615 gtk_signal_handler_unblock_by_func (GTK_OBJECT (widget),
616 GTK_SIGNAL_FUNC (gtk_combo_button_release),
619 if ((combo->current_button != 0) && (event->button.button == 1))
621 /* This was the initial button press */
623 GdkEventCrossing tmp_event;
625 combo->current_button = 0;
627 if (widget != combo->button)
628 gtk_widget_event (combo->button, event);
630 /* Un-pre-highlight */
632 tmp_event.type = GDK_LEAVE_NOTIFY;
633 tmp_event.window = combo->button->window;
634 tmp_event.send_event = TRUE;
635 tmp_event.subwindow = NULL;
636 tmp_event.detail = GDK_NOTIFY_ANCESTOR;
638 gtk_widget_event (combo->button, (GdkEvent *)&tmp_event);
640 /* Check to see if we released inside the button */
641 child = gtk_get_event_widget ((GdkEvent*) event);
643 while (child && child != (combo->button))
644 child = child->parent;
646 if (child == combo->button)
648 gtk_grab_add (combo->popwin);
649 gdk_pointer_grab (combo->popwin->window, TRUE,
650 GDK_BUTTON_PRESS_MASK |
651 GDK_BUTTON_RELEASE_MASK |
652 GDK_POINTER_MOTION_MASK,
653 NULL, NULL, GDK_CURRENT_TIME);
659 /* The user has clicked inside the popwin and released */
661 if (GTK_WIDGET_HAS_GRAB (combo->popwin))
663 gtk_grab_remove (combo->popwin);
664 gdk_pointer_ungrab (event->button.time);
668 gtk_widget_hide (combo->popwin);
674 gtk_combo_list_enter (GtkWidget *widget,
675 GdkEventCrossing *event,
678 GtkWidget *event_widget;
680 event_widget = gtk_get_event_widget ((GdkEvent*) event);
682 if ((event_widget == combo->list) &&
683 (combo->current_button != 0) &&
684 (!GTK_WIDGET_HAS_GRAB (combo->list)))
688 GdkModifierType mask;
690 gtk_grab_remove (combo->popwin);
692 /* Transfer the grab over to the list by synthesizing
693 * a button press event
695 gdk_window_get_pointer (combo->list->window, &x, &y, &mask);
697 tmp_event.button.type = GDK_BUTTON_PRESS;
698 tmp_event.button.window = combo->list->window;
699 tmp_event.button.send_event = TRUE;
700 tmp_event.button.time = GDK_CURRENT_TIME; /* bad */
701 tmp_event.button.x = x;
702 tmp_event.button.y = y;
703 /* We leave all the XInput fields unfilled here, in the expectation
704 * that GtkList doesn't care.
706 tmp_event.button.button = combo->current_button;
707 tmp_event.button.state = mask;
709 gtk_widget_event (combo->list, &tmp_event);
716 gtk_combo_list_key_press (GtkWidget * widget, GdkEventKey * event, GtkCombo * combo)
718 if (event->keyval == GDK_Escape)
720 if (GTK_WIDGET_HAS_GRAB (combo->popwin))
722 gtk_grab_remove (combo->popwin);
723 gdk_pointer_ungrab (GDK_CURRENT_TIME);
725 else if (GTK_WIDGET_HAS_GRAB (combo->list))
726 gtk_list_end_drag_selection (GTK_LIST (combo->list));
727 gtk_widget_hide (combo->popwin);
728 if (GTK_WIDGET_HAS_GRAB (combo->button))
730 combo->current_button = 0;
731 GTK_BUTTON (combo->button)->in_button = FALSE;
732 gtk_button_released (GTK_BUTTON (combo->button));
733 gtk_grab_remove (combo->button);
741 gtk_combo_init (GtkCombo * combo)
745 GtkWidget *event_box;
748 combo->case_sensitive = FALSE;
749 combo->value_in_list = FALSE;
750 combo->ok_if_empty = TRUE;
751 combo->use_arrows = TRUE;
752 combo->use_arrows_always = FALSE;
753 combo->entry = gtk_entry_new ();
754 combo->button = gtk_button_new ();
755 combo->current_button = 0;
756 arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_OUT);
757 gtk_widget_show (arrow);
758 gtk_container_add (GTK_CONTAINER (combo->button), arrow);
759 gtk_box_pack_start (GTK_BOX (combo), combo->entry, TRUE, TRUE, 0);
760 gtk_box_pack_end (GTK_BOX (combo), combo->button, FALSE, FALSE, 0);
761 GTK_WIDGET_UNSET_FLAGS (combo->button, GTK_CAN_FOCUS);
762 gtk_widget_show (combo->entry);
763 gtk_widget_show (combo->button);
764 combo->entry_change_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "changed",
765 (GtkSignalFunc) gtk_combo_update_list, combo);
766 gtk_signal_connect (GTK_OBJECT (combo->entry), "key_press_event",
767 (GtkSignalFunc) gtk_combo_entry_key_press, combo);
768 gtk_signal_connect_after (GTK_OBJECT (combo->entry), "focus_out_event",
769 (GtkSignalFunc) gtk_combo_entry_focus_out, combo);
770 combo->activate_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "activate",
771 (GtkSignalFunc) gtk_combo_activate, combo);
772 gtk_signal_connect (GTK_OBJECT (combo->button), "button_press_event",
773 (GtkSignalFunc) gtk_combo_popup_button_press, combo);
774 /*gtk_signal_connect_after (GTK_OBJECT (combo->button), "button_release_event",
775 (GtkSignalFunc) gtk_combo_button_release, combo);*/
776 gtk_signal_connect (GTK_OBJECT (combo->button), "leave_notify_event",
777 (GtkSignalFunc) gtk_combo_popup_button_leave, combo);
778 /*gtk_signal_connect (GTK_OBJECT (combo->button), "clicked",
779 (GtkSignalFunc)prelight_bug, combo); */
781 combo->popwin = gtk_window_new (GTK_WINDOW_POPUP);
782 gtk_widget_ref (combo->popwin);
783 gtk_window_set_policy (GTK_WINDOW (combo->popwin), 1, 1, 0);
785 gtk_signal_connect (GTK_OBJECT (combo->popwin), "key_press_event",
786 GTK_SIGNAL_FUNC (gtk_combo_window_key_press), combo);
788 gtk_widget_set_events (combo->popwin, GDK_KEY_PRESS_MASK);
790 event_box = gtk_event_box_new ();
791 gtk_container_add (GTK_CONTAINER (combo->popwin), event_box);
792 gtk_widget_show (event_box);
794 gtk_widget_realize (event_box);
795 cursor = gdk_cursor_new (GDK_TOP_LEFT_ARROW);
796 gdk_window_set_cursor (event_box->window, cursor);
797 gdk_cursor_destroy (cursor);
799 frame = gtk_frame_new (NULL);
800 gtk_container_add (GTK_CONTAINER (event_box), frame);
801 gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
802 gtk_widget_show (frame);
804 combo->popup = gtk_scrolled_window_new (NULL, NULL);
805 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (combo->popup),
806 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
807 GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (combo->popup)->hscrollbar, GTK_CAN_FOCUS);
808 GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (combo->popup)->vscrollbar, GTK_CAN_FOCUS);
809 gtk_container_add (GTK_CONTAINER (frame), combo->popup);
810 gtk_widget_show (combo->popup);
812 combo->list = gtk_list_new ();
813 /* We'll use enter notify events to figure out when to transfer
814 * the grab to the list
816 gtk_widget_set_events (combo->list, GDK_ENTER_NOTIFY_MASK);
818 gtk_list_set_selection_mode (GTK_LIST(combo->list), GTK_SELECTION_BROWSE);
819 gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (combo->popup), combo->list);
820 gtk_container_set_focus_vadjustment (GTK_CONTAINER (combo->list),
821 gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (combo->popup)));
822 gtk_container_set_focus_hadjustment (GTK_CONTAINER (combo->list),
823 gtk_scrolled_window_get_hadjustment (GTK_SCROLLED_WINDOW (combo->popup)));
824 gtk_widget_show (combo->list);
826 combo->list_change_id = gtk_signal_connect (GTK_OBJECT (combo->list), "selection_changed",
827 (GtkSignalFunc) gtk_combo_update_entry, combo);
828 gtk_signal_connect (GTK_OBJECT (combo->popwin), "key_press_event",
829 (GtkSignalFunc) gtk_combo_list_key_press, combo);
830 gtk_signal_connect (GTK_OBJECT (combo->popwin), "button_press_event",
831 GTK_SIGNAL_FUNC (gtk_combo_button_press), combo);
833 gtk_signal_connect (GTK_OBJECT (combo->list), "button_release_event",
834 GTK_SIGNAL_FUNC (gtk_combo_button_release), combo);
835 /* We connect here on the button, because we'll have a grab on it
836 * when the event occurs. But we are actually interested in enters
837 * for the combo->list.
839 gtk_signal_connect (GTK_OBJECT (combo->button), "enter_notify_event",
840 GTK_SIGNAL_FUNC (gtk_combo_list_enter), combo);
844 gtk_combo_get_type (void)
846 static GtkType combo_type = 0;
850 static const GtkTypeInfo combo_info =
854 sizeof (GtkComboClass),
855 (GtkClassInitFunc) gtk_combo_class_init,
856 (GtkObjectInitFunc) gtk_combo_init,
857 /* reserved_1 */ NULL,
858 /* reserved_2 */ NULL,
859 (GtkClassInitFunc) NULL,
861 combo_type = gtk_type_unique (GTK_TYPE_HBOX, &combo_info);
869 return GTK_WIDGET (gtk_type_new (GTK_TYPE_COMBO));
873 gtk_combo_set_value_in_list (GtkCombo * combo, gboolean val, gboolean ok_if_empty)
875 g_return_if_fail (GTK_IS_COMBO (combo));
877 combo->value_in_list = val;
878 combo->ok_if_empty = ok_if_empty;
882 gtk_combo_set_case_sensitive (GtkCombo * combo, gboolean val)
884 g_return_if_fail (GTK_IS_COMBO (combo));
886 combo->case_sensitive = val;
887 g_object_notify (G_OBJECT (combo), "case_sensitive");
891 gtk_combo_set_use_arrows (GtkCombo * combo, gboolean val)
893 g_return_if_fail (GTK_IS_COMBO (combo));
895 combo->use_arrows = val;
896 g_object_notify (G_OBJECT (combo), "enable_arrow_keys");
900 gtk_combo_set_use_arrows_always (GtkCombo * combo, gboolean val)
902 g_return_if_fail (GTK_IS_COMBO (combo));
904 combo->use_arrows_always = val;
905 combo->use_arrows = TRUE;
906 g_object_freeze_notify (G_OBJECT (combo));
907 g_object_notify (G_OBJECT (combo), "enable_arrow_keys");
908 g_object_notify (G_OBJECT (combo), "enable_arrows_always");
909 g_object_thaw_notify (G_OBJECT (combo));
913 gtk_combo_set_popdown_strings (GtkCombo * combo, GList * strings)
918 g_return_if_fail (GTK_IS_COMBO (combo));
919 g_return_if_fail (strings != NULL);
921 gtk_list_clear_items (GTK_LIST (combo->list), 0, -1);
925 li = gtk_list_item_new_with_label ((gchar *) list->data);
926 gtk_widget_show (li);
927 gtk_container_add (GTK_CONTAINER (combo->list), li);
933 gtk_combo_item_destroy (GtkObject * object)
937 key = gtk_object_get_data (object, gtk_combo_string_key);
940 gtk_object_remove_data (object, gtk_combo_string_key);
946 gtk_combo_set_item_string (GtkCombo * combo, GtkItem * item, const gchar * item_value)
951 g_return_if_fail (GTK_IS_COMBO (combo));
952 g_return_if_fail (item != NULL);
954 val = gtk_object_get_data (GTK_OBJECT (item), gtk_combo_string_key);
962 val = g_strdup (item_value);
963 gtk_object_set_data (GTK_OBJECT (item), gtk_combo_string_key, val);
965 gtk_signal_connect (GTK_OBJECT (item), "destroy",
966 (GtkSignalFunc) gtk_combo_item_destroy, val);
970 gtk_object_set_data (GTK_OBJECT (item), gtk_combo_string_key, NULL);
972 gtk_signal_disconnect_by_data(GTK_OBJECT (item), val);
977 gtk_combo_size_allocate (GtkWidget *widget,
978 GtkAllocation *allocation)
982 g_return_if_fail (GTK_IS_COMBO (widget));
983 g_return_if_fail (allocation != NULL);
985 GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
987 combo = GTK_COMBO (widget);
989 if (combo->entry->allocation.height > combo->entry->requisition.height)
991 GtkAllocation button_allocation;
993 button_allocation = combo->button->allocation;
994 button_allocation.height = combo->entry->requisition.height;
995 button_allocation.y = combo->entry->allocation.y +
996 (combo->entry->allocation.height - combo->entry->requisition.height)
998 gtk_widget_size_allocate (combo->button, &button_allocation);
1003 gtk_combo_disable_activate (GtkCombo* combo)
1005 g_return_if_fail (GTK_IS_COMBO (combo));
1007 if ( combo->activate_id ) {
1008 gtk_signal_disconnect (GTK_OBJECT(combo->entry), combo->activate_id);
1009 combo->activate_id = 0;
1014 gtk_combo_set_property (GObject *object,
1016 const GValue *value,
1019 GtkCombo *combo = GTK_COMBO (object);
1023 case PROP_ENABLE_ARROW_KEYS:
1024 /* This call does the notification */
1025 gtk_combo_set_use_arrows (combo, g_value_get_boolean (value));
1027 case PROP_ENABLE_ARROWS_ALWAYS:
1028 /* This call does the notification */
1029 gtk_combo_set_use_arrows_always (combo, g_value_get_boolean (value));
1031 case PROP_CASE_SENSITIVE:
1032 /* This call does the notification */
1033 gtk_combo_set_case_sensitive (combo, g_value_get_boolean (value));
1036 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1043 gtk_combo_get_property (GObject *object,
1048 GtkCombo *combo = GTK_COMBO (object);
1052 case PROP_ENABLE_ARROW_KEYS:
1053 g_value_set_boolean (value, combo->use_arrows);
1055 case PROP_ENABLE_ARROWS_ALWAYS:
1056 g_value_set_boolean (value, combo->use_arrows_always);
1058 case PROP_CASE_SENSITIVE:
1059 g_value_set_boolean (value, combo->case_sensitive);
1062 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);