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+
31 #undef GTK_DISABLE_DEPRECATED
36 #include <gdk/gdkkeysyms.h>
42 #include "gtkeventbox.h"
43 #include "gtkbutton.h"
44 #include "gtklistitem.h"
45 #include "gtkscrolledwindow.h"
47 #include "gtkwindow.h"
50 #include "gtkprivate.h"
55 static const gchar gtk_combo_string_key[] = "gtk-combo-string-value";
57 #define COMBO_LIST_MAX_HEIGHT (400)
58 #define EMPTY_LIST_HEIGHT (15)
62 PROP_ENABLE_ARROW_KEYS,
63 PROP_ENABLE_ARROWS_ALWAYS,
69 static void gtk_combo_realize (GtkWidget *widget);
70 static void gtk_combo_unrealize (GtkWidget *widget);
71 static void gtk_combo_destroy (GtkObject *combo);
72 static GtkListItem *gtk_combo_find (GtkCombo *combo);
73 static gchar * gtk_combo_func (GtkListItem *li);
74 static gboolean gtk_combo_focus_idle (GtkCombo *combo);
75 static gint gtk_combo_entry_focus_out (GtkEntry *entry,
78 static void gtk_combo_get_pos (GtkCombo *combo,
83 static void gtk_combo_popup_list (GtkCombo *combo);
84 static void gtk_combo_popdown_list (GtkCombo *combo);
86 static void gtk_combo_activate (GtkWidget *widget,
88 static gboolean gtk_combo_popup_button_press (GtkWidget *button,
89 GdkEventButton *event,
91 static gboolean gtk_combo_popup_button_leave (GtkWidget *button,
92 GdkEventCrossing *event,
94 static void gtk_combo_update_entry (GtkCombo *combo);
95 static void gtk_combo_update_list (GtkEntry *entry,
97 static gint gtk_combo_button_press (GtkWidget *widget,
100 static void gtk_combo_button_event_after (GtkWidget *widget,
103 static gint gtk_combo_list_enter (GtkWidget *widget,
104 GdkEventCrossing *event,
106 static gint gtk_combo_list_key_press (GtkWidget *widget,
109 static gint gtk_combo_entry_key_press (GtkEntry *widget,
112 static gint gtk_combo_window_key_press (GtkWidget *window,
115 static void gtk_combo_size_allocate (GtkWidget *widget,
116 GtkAllocation *allocation);
117 static void gtk_combo_set_property (GObject *object,
121 static void gtk_combo_get_property (GObject *object,
126 G_DEFINE_TYPE (GtkCombo, gtk_combo, GTK_TYPE_HBOX)
129 gtk_combo_class_init (GtkComboClass * klass)
131 GObjectClass *gobject_class;
132 GtkObjectClass *oclass;
133 GtkWidgetClass *widget_class;
135 gobject_class = (GObjectClass *) klass;
136 oclass = (GtkObjectClass *) klass;
137 widget_class = (GtkWidgetClass *) klass;
139 gobject_class->set_property = gtk_combo_set_property;
140 gobject_class->get_property = gtk_combo_get_property;
142 g_object_class_install_property (gobject_class,
143 PROP_ENABLE_ARROW_KEYS,
144 g_param_spec_boolean ("enable-arrow-keys",
145 P_("Enable arrow keys"),
146 P_("Whether the arrow keys move through the list of items"),
148 GTK_PARAM_READWRITE));
149 g_object_class_install_property (gobject_class,
150 PROP_ENABLE_ARROWS_ALWAYS,
151 g_param_spec_boolean ("enable-arrows-always",
152 P_("Always enable arrows"),
153 P_("Obsolete property, ignored"),
155 GTK_PARAM_READWRITE));
156 g_object_class_install_property (gobject_class,
158 g_param_spec_boolean ("case-sensitive",
159 P_("Case sensitive"),
160 P_("Whether list item matching is case sensitive"),
162 GTK_PARAM_READWRITE));
164 g_object_class_install_property (gobject_class,
166 g_param_spec_boolean ("allow-empty",
168 P_("Whether an empty value may be entered in this field"),
170 GTK_PARAM_READWRITE));
172 g_object_class_install_property (gobject_class,
174 g_param_spec_boolean ("value-in-list",
176 P_("Whether entered values must already be present in the list"),
178 GTK_PARAM_READWRITE));
181 oclass->destroy = gtk_combo_destroy;
183 widget_class->size_allocate = gtk_combo_size_allocate;
184 widget_class->realize = gtk_combo_realize;
185 widget_class->unrealize = gtk_combo_unrealize;
189 gtk_combo_destroy (GtkObject *object)
191 GtkCombo *combo = GTK_COMBO (object);
195 gtk_widget_destroy (combo->popwin);
196 g_object_unref (combo->popwin);
197 combo->popwin = NULL;
200 GTK_OBJECT_CLASS (gtk_combo_parent_class)->destroy (object);
204 gtk_combo_entry_key_press (GtkEntry * entry, GdkEventKey * event, GtkCombo * combo)
207 guint state = event->state & gtk_accelerator_get_default_mod_mask ();
210 if ((event->keyval == GDK_Tab || event->keyval == GDK_KP_Tab) &&
211 state == GDK_MOD1_MASK)
213 GtkEditable *editable = GTK_EDITABLE (entry);
216 gchar* nprefix = NULL;
219 if ( !GTK_LIST (combo->list)->children )
222 cmpl = g_completion_new ((GCompletionFunc)gtk_combo_func);
223 g_completion_add_items (cmpl, GTK_LIST (combo->list)->children);
225 pos = gtk_editable_get_position (editable);
226 prefix = gtk_editable_get_chars (editable, 0, pos);
228 g_completion_complete_utf8 (cmpl, prefix, &nprefix);
230 if (nprefix && strlen (nprefix) > strlen (prefix))
232 gtk_editable_insert_text (editable, g_utf8_offset_to_pointer (nprefix, pos),
233 strlen (nprefix) - strlen (prefix), &pos);
234 gtk_editable_set_position (editable, pos);
239 g_completion_free (cmpl);
244 if ((event->keyval == GDK_Down || event->keyval == GDK_KP_Down) &&
245 state == GDK_MOD1_MASK)
247 gtk_combo_activate (NULL, combo);
251 if (!combo->use_arrows || !GTK_LIST (combo->list)->children)
254 gtk_combo_update_list (GTK_ENTRY (combo->entry), combo);
255 li = g_list_find (GTK_LIST (combo->list)->children, gtk_combo_find (combo));
257 if (((event->keyval == GDK_Up || event->keyval == GDK_KP_Up) && state == 0) ||
258 ((event->keyval == 'p' || event->keyval == 'P') && state == GDK_MOD1_MASK))
261 li = g_list_last (GTK_LIST (combo->list)->children);
267 gtk_list_select_child (GTK_LIST (combo->list), GTK_WIDGET (li->data));
268 gtk_combo_update_entry (combo);
273 if (((event->keyval == GDK_Down || event->keyval == GDK_KP_Down) && state == 0) ||
274 ((event->keyval == 'n' || event->keyval == 'N') && state == GDK_MOD1_MASK))
277 li = GTK_LIST (combo->list)->children;
282 gtk_list_select_child (GTK_LIST (combo->list), GTK_WIDGET (li->data));
283 gtk_combo_update_entry (combo);
292 gtk_combo_window_key_press (GtkWidget *window,
296 guint state = event->state & gtk_accelerator_get_default_mod_mask ();
298 if ((event->keyval == GDK_Return ||
299 event->keyval == GDK_ISO_Enter ||
300 event->keyval == GDK_KP_Enter) &&
303 gtk_combo_popdown_list (combo);
304 gtk_combo_update_entry (combo);
308 else if ((event->keyval == GDK_Up || event->keyval == GDK_KP_Up) &&
309 state == GDK_MOD1_MASK)
311 gtk_combo_popdown_list (combo);
315 else if ((event->keyval == GDK_space || event->keyval == GDK_KP_Space) &&
318 gtk_combo_update_entry (combo);
325 gtk_combo_find (GtkCombo * combo)
328 GtkListItem *found = NULL;
333 text = gtk_entry_get_text (GTK_ENTRY (combo->entry));
334 if (combo->case_sensitive)
335 compare_text = (gchar *)text;
337 compare_text = g_utf8_casefold (text, -1);
339 for (clist = GTK_LIST (combo->list)->children;
343 ltext = gtk_combo_func (GTK_LIST_ITEM (clist->data));
347 if (!combo->case_sensitive)
348 ltext = g_utf8_casefold (ltext, -1);
350 if (strcmp (ltext, compare_text) == 0)
353 if (!combo->case_sensitive)
357 if (!combo->case_sensitive)
358 g_free (compare_text);
364 gtk_combo_func (GtkListItem * li)
369 ltext = g_object_get_data (G_OBJECT (li), I_(gtk_combo_string_key));
372 label = GTK_BIN (li)->child;
373 if (!label || !GTK_IS_LABEL (label))
375 ltext = (gchar *) gtk_label_get_text (GTK_LABEL (label));
381 gtk_combo_focus_idle (GtkCombo * combo)
385 GDK_THREADS_ENTER ();
386 gtk_widget_grab_focus (combo->entry);
387 GDK_THREADS_LEAVE ();
393 gtk_combo_entry_focus_out (GtkEntry * entry, GdkEventFocus * event, GtkCombo * combo)
396 if (combo->value_in_list && !gtk_combo_find (combo))
400 /* gdk_beep(); *//* this can be annoying */
401 if (combo->ok_if_empty && !strcmp (gtk_entry_get_text (entry), ""))
404 printf ("INVALID ENTRY: `%s'\n", gtk_entry_get_text (entry));
406 gtk_grab_add (GTK_WIDGET (combo));
407 /* this is needed because if we call gtk_widget_grab_focus()
408 it isn't guaranteed it's the *last* call before the main-loop,
409 so the focus can be lost anyway...
410 the signal_stop_emission doesn't seem to work either...
412 focus_idle = g_idle_source_new ();
413 g_source_set_closure (focus_idle,
414 g_cclosure_new_object (G_CALLBACK (gtk_combo_focus_idle),
416 g_source_attach (focus_idle, NULL);
417 g_source_unref (focus_idle);
419 /*g_signal_stop_emission_by_name (entry, "focus_out_event"); */
426 gtk_combo_get_pos (GtkCombo * combo, gint * x, gint * y, gint * height, gint * width)
430 GtkScrolledWindow *popup;
433 GtkRequisition list_requisition;
434 gboolean show_hscroll = FALSE;
435 gboolean show_vscroll = FALSE;
442 gint scrollbar_spacing;
444 widget = GTK_WIDGET (combo);
445 popup = GTK_SCROLLED_WINDOW (combo->popup);
446 popwin = GTK_BIN (combo->popwin);
448 scrollbar_spacing = _gtk_scrolled_window_get_scrollbar_spacing (popup);
450 gdk_window_get_origin (combo->entry->window, x, y);
451 if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
452 *x -= widget->allocation.width - combo->entry->allocation.width;
453 real_height = MIN (combo->entry->requisition.height,
454 combo->entry->allocation.height);
456 avail_height = gdk_screen_get_height (gtk_widget_get_screen (widget)) - *y;
458 gtk_widget_size_request (combo->list, &list_requisition);
459 min_height = MIN (list_requisition.height,
460 popup->vscrollbar->requisition.height);
461 if (!GTK_LIST (combo->list)->children)
462 list_requisition.height += EMPTY_LIST_HEIGHT;
464 alloc_width = (widget->allocation.width -
465 2 * popwin->child->style->xthickness -
466 2 * GTK_CONTAINER (popwin->child)->border_width -
467 2 * GTK_CONTAINER (combo->popup)->border_width -
468 2 * GTK_CONTAINER (GTK_BIN (popup)->child)->border_width -
469 2 * GTK_BIN (popup)->child->style->xthickness);
471 work_height = (2 * popwin->child->style->ythickness +
472 2 * GTK_CONTAINER (popwin->child)->border_width +
473 2 * GTK_CONTAINER (combo->popup)->border_width +
474 2 * GTK_CONTAINER (GTK_BIN (popup)->child)->border_width +
475 2 * GTK_BIN (popup)->child->style->ythickness);
479 old_width = alloc_width;
480 old_height = work_height;
483 alloc_width < list_requisition.width)
485 GtkRequisition requisition;
487 gtk_widget_size_request (popup->hscrollbar, &requisition);
488 work_height += (requisition.height + scrollbar_spacing);
493 work_height + list_requisition.height > avail_height)
495 GtkRequisition requisition;
497 if (work_height + min_height > avail_height &&
498 *y - real_height > avail_height)
500 *y -= (work_height + list_requisition.height + real_height);
503 gtk_widget_size_request (popup->hscrollbar, &requisition);
504 alloc_width -= (requisition.width + scrollbar_spacing);
507 } while (old_width != alloc_width || old_height != work_height);
509 *width = widget->allocation.width;
511 *height = avail_height;
513 *height = work_height + list_requisition.height;
520 gtk_combo_popup_list (GtkCombo *combo)
524 gint height, width, x, y;
525 gint old_width, old_height;
527 old_width = combo->popwin->allocation.width;
528 old_height = combo->popwin->allocation.height;
530 gtk_combo_get_pos (combo, &x, &y, &height, &width);
532 /* workaround for gtk_scrolled_window_size_allocate bug */
533 if (old_width != width || old_height != height)
535 gtk_widget_hide (GTK_SCROLLED_WINDOW (combo->popup)->hscrollbar);
536 gtk_widget_hide (GTK_SCROLLED_WINDOW (combo->popup)->vscrollbar);
539 gtk_combo_update_list (GTK_ENTRY (combo->entry), combo);
541 /* We need to make sure some child of combo->popwin
542 * is focused to disable GtkWindow's automatic
543 * "focus-the-first-item" code. If there is no selected
544 * child, we focus the list itself with some hackery.
546 list = GTK_LIST (combo->list);
550 gtk_widget_grab_focus (list->selection->data);
554 GTK_WIDGET_SET_FLAGS (list, GTK_CAN_FOCUS);
555 gtk_widget_grab_focus (combo->list);
556 GTK_LIST (combo->list)->last_focus_child = NULL;
557 GTK_WIDGET_UNSET_FLAGS (list, GTK_CAN_FOCUS);
560 gtk_window_move (GTK_WINDOW (combo->popwin), x, y);
562 toplevel = gtk_widget_get_toplevel (GTK_WIDGET (combo));
564 if (GTK_IS_WINDOW (toplevel))
566 gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)),
567 GTK_WINDOW (combo->popwin));
568 gtk_window_set_transient_for (GTK_WINDOW (combo->popwin), GTK_WINDOW (toplevel));
571 gtk_widget_set_size_request (combo->popwin, width, height);
572 gtk_widget_show (combo->popwin);
574 gtk_widget_grab_focus (combo->popwin);
578 gtk_combo_popdown_list (GtkCombo *combo)
580 combo->current_button = 0;
582 if (GTK_BUTTON (combo->button)->in_button)
584 GTK_BUTTON (combo->button)->in_button = FALSE;
585 gtk_button_released (GTK_BUTTON (combo->button));
588 if (GTK_WIDGET_HAS_GRAB (combo->popwin))
590 gtk_grab_remove (combo->popwin);
591 gdk_display_pointer_ungrab (gtk_widget_get_display (GTK_WIDGET (combo)),
592 gtk_get_current_event_time ());
593 gdk_display_keyboard_ungrab (gtk_widget_get_display (GTK_WIDGET (combo)),
594 gtk_get_current_event_time ());
597 gtk_widget_hide (combo->popwin);
599 gtk_window_group_add_window (gtk_window_get_group (NULL), GTK_WINDOW (combo->popwin));
603 popup_grab_on_window (GdkWindow *window,
604 guint32 activate_time)
606 if ((gdk_pointer_grab (window, TRUE,
607 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
608 GDK_POINTER_MOTION_MASK,
609 NULL, NULL, activate_time) == 0))
611 if (gdk_keyboard_grab (window, TRUE,
616 gdk_display_pointer_ungrab (gdk_drawable_get_display (window),
626 gtk_combo_activate (GtkWidget *widget,
629 if (!combo->button->window ||
630 !popup_grab_on_window (combo->button->window,
631 gtk_get_current_event_time ()))
634 gtk_combo_popup_list (combo);
636 /* This must succeed since we already have the grab */
637 popup_grab_on_window (combo->popwin->window,
638 gtk_get_current_event_time ());
640 if (!GTK_WIDGET_HAS_FOCUS (combo->entry))
641 gtk_widget_grab_focus (combo->entry);
643 gtk_grab_add (combo->popwin);
647 gtk_combo_popup_button_press (GtkWidget *button,
648 GdkEventButton *event,
651 if (!GTK_WIDGET_HAS_FOCUS (combo->entry))
652 gtk_widget_grab_focus (combo->entry);
654 if (event->button != 1)
657 if (!popup_grab_on_window (combo->button->window,
658 gtk_get_current_event_time ()))
661 combo->current_button = event->button;
663 gtk_combo_popup_list (combo);
665 /* This must succeed since we already have the grab */
666 popup_grab_on_window (combo->popwin->window,
667 gtk_get_current_event_time ());
669 gtk_button_pressed (GTK_BUTTON (button));
671 gtk_grab_add (combo->popwin);
677 gtk_combo_popup_button_leave (GtkWidget *button,
678 GdkEventCrossing *event,
681 /* The idea here is that we want to keep the button down if the
682 * popup is popped up.
684 return combo->current_button != 0;
688 gtk_combo_update_entry (GtkCombo * combo)
690 GtkList *list = GTK_LIST (combo->list);
693 g_signal_handler_block (list, combo->list_change_id);
696 text = gtk_combo_func (GTK_LIST_ITEM (list->selection->data));
699 gtk_entry_set_text (GTK_ENTRY (combo->entry), text);
701 g_signal_handler_unblock (list, combo->list_change_id);
705 gtk_combo_selection_changed (GtkList *list,
708 if (!GTK_WIDGET_VISIBLE (combo->popwin))
709 gtk_combo_update_entry (combo);
713 gtk_combo_update_list (GtkEntry * entry, GtkCombo * combo)
715 GtkList *list = GTK_LIST (combo->list);
716 GList *slist = list->selection;
719 gtk_grab_remove (GTK_WIDGET (combo));
721 g_signal_handler_block (entry, combo->entry_change_id);
722 if (slist && slist->data)
723 gtk_list_unselect_child (list, GTK_WIDGET (slist->data));
724 li = gtk_combo_find (combo);
726 gtk_list_select_child (list, GTK_WIDGET (li));
727 g_signal_handler_unblock (entry, combo->entry_change_id);
731 gtk_combo_button_press (GtkWidget * widget, GdkEvent * event, GtkCombo * combo)
735 child = gtk_get_event_widget (event);
737 /* We don't ask for button press events on the grab widget, so
738 * if an event is reported directly to the grab widget, it must
739 * be on a window outside the application (and thus we remove
740 * the popup window). Otherwise, we check if the widget is a child
741 * of the grab widget, and only remove the popup window if it
750 child = child->parent;
754 gtk_combo_popdown_list (combo);
760 is_within (GtkWidget *widget,
763 return widget == ancestor || gtk_widget_is_ancestor (widget, ancestor);
767 gtk_combo_button_event_after (GtkWidget *widget,
773 if (event->type != GDK_BUTTON_RELEASE)
776 child = gtk_get_event_widget ((GdkEvent*) event);
778 if ((combo->current_button != 0) && (event->button.button == 1))
780 /* This was the initial button press */
782 combo->current_button = 0;
784 /* Check to see if we released inside the button */
785 if (child && is_within (child, combo->button))
787 gtk_grab_add (combo->popwin);
788 gdk_pointer_grab (combo->popwin->window, TRUE,
789 GDK_BUTTON_PRESS_MASK |
790 GDK_BUTTON_RELEASE_MASK |
791 GDK_POINTER_MOTION_MASK,
792 NULL, NULL, GDK_CURRENT_TIME);
797 if (is_within (child, combo->list))
798 gtk_combo_update_entry (combo);
800 gtk_combo_popdown_list (combo);
805 find_child_foreach (GtkWidget *widget,
808 GdkEventButton *event = data;
812 if (event->x >= widget->allocation.x &&
813 event->x < widget->allocation.x + widget->allocation.width &&
814 event->y >= widget->allocation.y &&
815 event->y < widget->allocation.y + widget->allocation.height)
816 event->window = g_object_ref (widget->window);
821 find_child_window (GtkContainer *container,
822 GdkEventButton *event)
824 gtk_container_foreach (container, find_child_foreach, event);
828 gtk_combo_list_enter (GtkWidget *widget,
829 GdkEventCrossing *event,
832 GtkWidget *event_widget;
834 event_widget = gtk_get_event_widget ((GdkEvent*) event);
836 if ((event_widget == combo->list) &&
837 (combo->current_button != 0) &&
838 (!GTK_WIDGET_HAS_GRAB (combo->list)))
840 GdkEvent *tmp_event = gdk_event_new (GDK_BUTTON_PRESS);
842 GdkModifierType mask;
844 gtk_grab_remove (combo->popwin);
846 /* Transfer the grab over to the list by synthesizing
847 * a button press event
849 gdk_window_get_pointer (combo->list->window, &x, &y, &mask);
851 tmp_event->button.send_event = TRUE;
852 tmp_event->button.time = GDK_CURRENT_TIME; /* bad */
853 tmp_event->button.x = x;
854 tmp_event->button.y = y;
855 /* We leave all the XInput fields unfilled here, in the expectation
856 * that GtkList doesn't care.
858 tmp_event->button.button = combo->current_button;
859 tmp_event->button.state = mask;
861 find_child_window (GTK_CONTAINER (combo->list), &tmp_event->button);
862 if (!tmp_event->button.window)
866 if (GTK_LIST (combo->list)->children)
867 child = GTK_LIST (combo->list)->children->data;
871 tmp_event->button.window = g_object_ref (child->window);
874 gtk_widget_event (combo->list, tmp_event);
875 gdk_event_free (tmp_event);
882 gtk_combo_list_key_press (GtkWidget * widget, GdkEventKey * event, GtkCombo * combo)
884 guint state = event->state & gtk_accelerator_get_default_mod_mask ();
886 if (event->keyval == GDK_Escape && state == 0)
888 if (GTK_WIDGET_HAS_GRAB (combo->list))
889 gtk_list_end_drag_selection (GTK_LIST (combo->list));
891 gtk_combo_popdown_list (combo);
899 combo_event_box_realize (GtkWidget *widget)
901 GdkCursor *cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget),
903 gdk_window_set_cursor (widget->window, cursor);
904 gdk_cursor_unref (cursor);
908 gtk_combo_init (GtkCombo * combo)
912 GtkWidget *event_box;
914 combo->case_sensitive = FALSE;
915 combo->value_in_list = FALSE;
916 combo->ok_if_empty = TRUE;
917 combo->use_arrows = TRUE;
918 combo->use_arrows_always = TRUE;
919 combo->entry = gtk_entry_new ();
920 combo->button = gtk_button_new ();
921 combo->current_button = 0;
922 arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_OUT);
923 gtk_widget_show (arrow);
924 gtk_container_add (GTK_CONTAINER (combo->button), arrow);
925 gtk_box_pack_start (GTK_BOX (combo), combo->entry, TRUE, TRUE, 0);
926 gtk_box_pack_end (GTK_BOX (combo), combo->button, FALSE, FALSE, 0);
927 GTK_WIDGET_UNSET_FLAGS (combo->button, GTK_CAN_FOCUS);
928 gtk_widget_show (combo->entry);
929 gtk_widget_show (combo->button);
930 combo->entry_change_id = g_signal_connect (combo->entry, "changed",
931 G_CALLBACK (gtk_combo_update_list),
933 g_signal_connect_after (combo->entry, "key-press-event",
934 G_CALLBACK (gtk_combo_entry_key_press), combo);
935 g_signal_connect_after (combo->entry, "focus-out-event",
936 G_CALLBACK (gtk_combo_entry_focus_out), combo);
937 combo->activate_id = g_signal_connect (combo->entry, "activate",
938 G_CALLBACK (gtk_combo_activate),
940 g_signal_connect (combo->button, "button-press-event",
941 G_CALLBACK (gtk_combo_popup_button_press), combo);
942 g_signal_connect (combo->button, "leave-notify-event",
943 G_CALLBACK (gtk_combo_popup_button_leave), combo);
945 combo->popwin = gtk_window_new (GTK_WINDOW_POPUP);
946 gtk_widget_set_name (combo->popwin, "gtk-combo-popup-window");
947 gtk_window_set_type_hint (GTK_WINDOW (combo->popwin), GDK_WINDOW_TYPE_HINT_COMBO);
948 g_object_ref (combo->popwin);
949 gtk_window_set_resizable (GTK_WINDOW (combo->popwin), FALSE);
951 g_signal_connect (combo->popwin, "key-press-event",
952 G_CALLBACK (gtk_combo_window_key_press), combo);
954 gtk_widget_set_events (combo->popwin, GDK_KEY_PRESS_MASK);
956 event_box = gtk_event_box_new ();
957 gtk_container_add (GTK_CONTAINER (combo->popwin), event_box);
958 g_signal_connect (event_box, "realize",
959 G_CALLBACK (combo_event_box_realize), NULL);
960 gtk_widget_show (event_box);
963 frame = gtk_frame_new (NULL);
964 gtk_container_add (GTK_CONTAINER (event_box), frame);
965 gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
966 gtk_widget_show (frame);
968 combo->popup = gtk_scrolled_window_new (NULL, NULL);
969 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (combo->popup),
970 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
971 GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (combo->popup)->hscrollbar, GTK_CAN_FOCUS);
972 GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (combo->popup)->vscrollbar, GTK_CAN_FOCUS);
973 gtk_container_add (GTK_CONTAINER (frame), combo->popup);
974 gtk_widget_show (combo->popup);
976 combo->list = gtk_list_new ();
977 /* We'll use enter notify events to figure out when to transfer
978 * the grab to the list
980 gtk_widget_set_events (combo->list, GDK_ENTER_NOTIFY_MASK);
982 gtk_list_set_selection_mode (GTK_LIST(combo->list), GTK_SELECTION_BROWSE);
983 gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (combo->popup), combo->list);
984 gtk_container_set_focus_vadjustment (GTK_CONTAINER (combo->list),
985 gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (combo->popup)));
986 gtk_container_set_focus_hadjustment (GTK_CONTAINER (combo->list),
987 gtk_scrolled_window_get_hadjustment (GTK_SCROLLED_WINDOW (combo->popup)));
988 gtk_widget_show (combo->list);
990 combo->list_change_id = g_signal_connect (combo->list, "selection-changed",
991 G_CALLBACK (gtk_combo_selection_changed), combo);
993 g_signal_connect (combo->popwin, "key-press-event",
994 G_CALLBACK (gtk_combo_list_key_press), combo);
995 g_signal_connect (combo->popwin, "button-press-event",
996 G_CALLBACK (gtk_combo_button_press), combo);
998 g_signal_connect (combo->popwin, "event-after",
999 G_CALLBACK (gtk_combo_button_event_after), combo);
1000 g_signal_connect (combo->list, "event-after",
1001 G_CALLBACK (gtk_combo_button_event_after), combo);
1003 g_signal_connect (combo->list, "enter-notify-event",
1004 G_CALLBACK (gtk_combo_list_enter), combo);
1008 gtk_combo_realize (GtkWidget *widget)
1010 GtkCombo *combo = GTK_COMBO (widget);
1012 gtk_window_set_screen (GTK_WINDOW (combo->popwin),
1013 gtk_widget_get_screen (widget));
1015 GTK_WIDGET_CLASS (gtk_combo_parent_class)->realize (widget);
1019 gtk_combo_unrealize (GtkWidget *widget)
1021 GtkCombo *combo = GTK_COMBO (widget);
1023 gtk_combo_popdown_list (combo);
1024 gtk_widget_unrealize (combo->popwin);
1026 GTK_WIDGET_CLASS (gtk_combo_parent_class)->unrealize (widget);
1030 gtk_combo_new (void)
1032 return g_object_new (GTK_TYPE_COMBO, NULL);
1036 gtk_combo_set_value_in_list (GtkCombo * combo, gboolean val, gboolean ok_if_empty)
1038 g_return_if_fail (GTK_IS_COMBO (combo));
1040 ok_if_empty = ok_if_empty != FALSE;
1042 g_object_freeze_notify (G_OBJECT (combo));
1043 if (combo->value_in_list != val)
1045 combo->value_in_list = val;
1046 g_object_notify (G_OBJECT (combo), "value-in-list");
1048 if (combo->ok_if_empty != ok_if_empty)
1050 combo->ok_if_empty = ok_if_empty;
1051 g_object_notify (G_OBJECT (combo), "allow-empty");
1053 g_object_thaw_notify (G_OBJECT (combo));
1057 gtk_combo_set_case_sensitive (GtkCombo * combo, gboolean val)
1059 g_return_if_fail (GTK_IS_COMBO (combo));
1062 if (combo->case_sensitive != val)
1064 combo->case_sensitive = val;
1065 g_object_notify (G_OBJECT (combo), "case-sensitive");
1070 gtk_combo_set_use_arrows (GtkCombo * combo, gboolean val)
1072 g_return_if_fail (GTK_IS_COMBO (combo));
1075 if (combo->use_arrows != val)
1077 combo->use_arrows = val;
1078 g_object_notify (G_OBJECT (combo), "enable-arrow-keys");
1083 gtk_combo_set_use_arrows_always (GtkCombo * combo, gboolean val)
1085 g_return_if_fail (GTK_IS_COMBO (combo));
1088 if (combo->use_arrows_always != val)
1090 g_object_freeze_notify (G_OBJECT (combo));
1091 combo->use_arrows_always = val;
1092 g_object_notify (G_OBJECT (combo), "enable-arrows-always");
1094 if (combo->use_arrows != TRUE)
1096 combo->use_arrows = TRUE;
1097 g_object_notify (G_OBJECT (combo), "enable-arrow-keys");
1099 g_object_thaw_notify (G_OBJECT (combo));
1104 gtk_combo_set_popdown_strings (GtkCombo *combo,
1110 g_return_if_fail (GTK_IS_COMBO (combo));
1112 gtk_combo_popdown_list (combo);
1114 gtk_list_clear_items (GTK_LIST (combo->list), 0, -1);
1118 li = gtk_list_item_new_with_label ((gchar *) list->data);
1119 gtk_widget_show (li);
1120 gtk_container_add (GTK_CONTAINER (combo->list), li);
1126 gtk_combo_set_item_string (GtkCombo *combo,
1128 const gchar *item_value)
1130 g_return_if_fail (GTK_IS_COMBO (combo));
1131 g_return_if_fail (item != NULL);
1133 g_object_set_data_full (G_OBJECT (item), I_(gtk_combo_string_key),
1134 g_strdup (item_value), g_free);
1138 gtk_combo_size_allocate (GtkWidget *widget,
1139 GtkAllocation *allocation)
1141 GtkCombo *combo = GTK_COMBO (widget);
1143 GTK_WIDGET_CLASS (gtk_combo_parent_class)->size_allocate (widget, allocation);
1145 if (combo->entry->allocation.height > combo->entry->requisition.height)
1147 GtkAllocation button_allocation;
1149 button_allocation = combo->button->allocation;
1150 button_allocation.height = combo->entry->requisition.height;
1151 button_allocation.y = combo->entry->allocation.y +
1152 (combo->entry->allocation.height - combo->entry->requisition.height)
1154 gtk_widget_size_allocate (combo->button, &button_allocation);
1159 gtk_combo_disable_activate (GtkCombo *combo)
1161 g_return_if_fail (GTK_IS_COMBO (combo));
1163 if ( combo->activate_id ) {
1164 g_signal_handler_disconnect (combo->entry, combo->activate_id);
1165 combo->activate_id = 0;
1170 gtk_combo_set_property (GObject *object,
1172 const GValue *value,
1175 GtkCombo *combo = GTK_COMBO (object);
1179 case PROP_ENABLE_ARROW_KEYS:
1180 gtk_combo_set_use_arrows (combo, g_value_get_boolean (value));
1182 case PROP_ENABLE_ARROWS_ALWAYS:
1183 gtk_combo_set_use_arrows_always (combo, g_value_get_boolean (value));
1185 case PROP_CASE_SENSITIVE:
1186 gtk_combo_set_case_sensitive (combo, g_value_get_boolean (value));
1188 case PROP_ALLOW_EMPTY:
1189 combo->ok_if_empty = g_value_get_boolean (value);
1191 case PROP_VALUE_IN_LIST:
1192 combo->value_in_list = g_value_get_boolean (value);
1195 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1202 gtk_combo_get_property (GObject *object,
1207 GtkCombo *combo = GTK_COMBO (object);
1211 case PROP_ENABLE_ARROW_KEYS:
1212 g_value_set_boolean (value, combo->use_arrows);
1214 case PROP_ENABLE_ARROWS_ALWAYS:
1215 g_value_set_boolean (value, combo->use_arrows_always);
1217 case PROP_CASE_SENSITIVE:
1218 g_value_set_boolean (value, combo->case_sensitive);
1220 case PROP_ALLOW_EMPTY:
1221 g_value_set_boolean (value, combo->ok_if_empty);
1223 case PROP_VALUE_IN_LIST:
1224 g_value_set_boolean (value, combo->value_in_list);
1227 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1233 #define __GTK_SMART_COMBO_C__
1234 #include "gtkaliasdef.c"