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) && (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,
262 if (event->keyval == GDK_Return || event->keyval == GDK_KP_Enter)
264 if (GTK_WIDGET_VISIBLE (combo->popwin))
266 gtk_widget_hide (combo->popwin);
268 if (GTK_WIDGET_HAS_GRAB (combo->popwin))
270 gtk_grab_remove (combo->popwin);
271 gdk_pointer_ungrab (event->time);
275 gtk_signal_emit_stop_by_name (GTK_OBJECT (window), "key_press_event");
284 gtk_combo_find (GtkCombo * combo)
289 int (*string_compare) (const char *, const char *);
291 if (combo->case_sensitive)
292 string_compare = strcmp;
294 string_compare = g_strcasecmp;
296 text = gtk_entry_get_text (GTK_ENTRY (combo->entry));
297 clist = GTK_LIST (combo->list)->children;
299 while (clist && clist->data)
301 ltext = gtk_combo_func (GTK_LIST_ITEM (clist->data));
304 if (!(*string_compare) (ltext, text))
305 return (GtkListItem *) clist->data;
313 gtk_combo_func (GtkListItem * li)
318 ltext = (gchar *) gtk_object_get_data (GTK_OBJECT (li), gtk_combo_string_key);
321 label = GTK_BIN (li)->child;
322 if (!label || !GTK_IS_LABEL (label))
324 gtk_label_get (GTK_LABEL (label), <ext);
330 gtk_combo_focus_idle (GtkCombo * combo)
334 GDK_THREADS_ENTER ();
335 gtk_widget_grab_focus (combo->entry);
336 GDK_THREADS_LEAVE ();
342 gtk_combo_entry_focus_out (GtkEntry * entry, GdkEventFocus * event, GtkCombo * combo)
345 if (combo->value_in_list && !gtk_combo_find (combo))
347 /* gdk_beep(); *//* this can be annoying */
348 if (combo->ok_if_empty && !strcmp (gtk_entry_get_text (entry), ""))
351 printf ("INVALID ENTRY: `%s'\n", gtk_entry_get_text (entry));
353 gtk_grab_add (GTK_WIDGET (combo));
354 /* this is needed because if we call gtk_widget_grab_focus()
355 it isn't guaranteed it's the *last* call before the main-loop,
356 so the focus can be lost anyway...
357 the signal_emit_stop doesn't seem to work either...
359 gtk_idle_add ((GtkFunction) gtk_combo_focus_idle, combo);
360 /*gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "focus_out_event"); */
367 gtk_combo_get_pos (GtkCombo * combo, gint * x, gint * y, gint * height, gint * width)
371 GtkScrolledWindow *popup;
374 GtkRequisition list_requisition;
375 gboolean show_hscroll = FALSE;
376 gboolean show_vscroll = FALSE;
384 widget = GTK_WIDGET(combo);
385 popup = GTK_SCROLLED_WINDOW (combo->popup);
386 popwin = GTK_BIN (combo->popwin);
388 gdk_window_get_origin (combo->entry->window, x, y);
389 real_height = MIN (combo->entry->requisition.height,
390 combo->entry->allocation.height);
392 avail_height = gdk_screen_height () - *y;
394 gtk_widget_size_request (combo->list, &list_requisition);
395 min_height = MIN (list_requisition.height,
396 popup->vscrollbar->requisition.height);
397 if (!GTK_LIST (combo->list)->children)
398 list_requisition.height += EMPTY_LIST_HEIGHT;
400 alloc_width = (widget->allocation.width -
401 2 * popwin->child->style->xthickness -
402 2 * GTK_CONTAINER (popwin->child)->border_width -
403 2 * GTK_CONTAINER (combo->popup)->border_width -
404 2 * GTK_CONTAINER (GTK_BIN (popup)->child)->border_width -
405 2 * GTK_BIN (popup)->child->style->xthickness);
407 work_height = (2 * popwin->child->style->ythickness +
408 2 * GTK_CONTAINER (popwin->child)->border_width +
409 2 * GTK_CONTAINER (combo->popup)->border_width +
410 2 * GTK_CONTAINER (GTK_BIN (popup)->child)->border_width +
411 2 * GTK_BIN (popup)->child->style->xthickness);
415 old_width = alloc_width;
416 old_height = work_height;
419 alloc_width < list_requisition.width)
421 work_height += (popup->hscrollbar->requisition.height +
422 GTK_SCROLLED_WINDOW_GET_CLASS (combo->popup)->scrollbar_spacing);
426 work_height + list_requisition.height > avail_height)
428 if (work_height + min_height > avail_height &&
429 *y - real_height > avail_height)
431 *y -= (work_height + list_requisition.height + real_height);
434 alloc_width -= (popup->vscrollbar->requisition.width +
435 GTK_SCROLLED_WINDOW_GET_CLASS (combo->popup)->scrollbar_spacing);
438 } while (old_width != alloc_width || old_height != work_height);
440 *width = widget->allocation.width;
442 *height = avail_height;
444 *height = work_height + list_requisition.height;
451 gtk_combo_popup_list (GtkCombo * combo)
453 gint height, width, x, y;
454 gint old_width, old_height;
456 old_width = combo->popwin->allocation.width;
457 old_height = combo->popwin->allocation.height;
459 gtk_combo_get_pos (combo, &x, &y, &height, &width);
461 /* workaround for gtk_scrolled_window_size_allocate bug */
462 if (old_width != width || old_height != height)
464 gtk_widget_hide (GTK_SCROLLED_WINDOW (combo->popup)->hscrollbar);
465 gtk_widget_hide (GTK_SCROLLED_WINDOW (combo->popup)->vscrollbar);
468 gtk_widget_set_uposition (combo->popwin, x, y);
469 gtk_widget_set_usize (combo->popwin, width, height);
470 gtk_widget_realize (combo->popwin);
471 gdk_window_resize (combo->popwin->window, width, height);
472 gtk_widget_show (combo->popwin);
474 gtk_widget_grab_focus (combo->popwin);
478 gtk_combo_activate (GtkWidget *widget,
481 gtk_combo_popup_list (combo);
483 if (!GTK_WIDGET_HAS_FOCUS (combo->entry))
484 gtk_widget_grab_focus (combo->entry);
486 gtk_grab_add (combo->popwin);
487 gdk_pointer_grab (combo->popwin->window, TRUE,
488 GDK_BUTTON_PRESS_MASK |
489 GDK_BUTTON_RELEASE_MASK |
490 GDK_POINTER_MOTION_MASK,
491 NULL, NULL, GDK_CURRENT_TIME);
495 gtk_combo_popup_button_press (GtkWidget *button,
496 GdkEventButton *event,
499 if (!GTK_WIDGET_HAS_FOCUS (combo->entry))
500 gtk_widget_grab_focus (combo->entry);
502 if (event->button != 1)
505 combo->current_button = event->button;
507 gtk_combo_popup_list (combo);
508 gtk_button_pressed (GTK_BUTTON (button));
510 gtk_grab_add (combo->popwin);
511 gdk_pointer_grab (combo->popwin->window, TRUE,
512 GDK_BUTTON_PRESS_MASK |
513 GDK_BUTTON_RELEASE_MASK |
514 GDK_POINTER_MOTION_MASK,
515 NULL, NULL, GDK_CURRENT_TIME);
517 GTK_LIST (combo->list)->drag_selection = TRUE;
518 gtk_grab_add (combo->list);
524 gtk_combo_popup_button_leave (GtkWidget *button,
525 GdkEventCrossing *event,
528 return combo->current_button != 0;
533 gtk_combo_update_entry (GtkList * list, GtkCombo * combo)
537 gtk_grab_remove (GTK_WIDGET (combo));
538 gtk_signal_handler_block (GTK_OBJECT (list), combo->list_change_id);
541 text = gtk_combo_func (GTK_LIST_ITEM (list->selection->data));
544 gtk_entry_set_text (GTK_ENTRY (combo->entry), text);
546 gtk_signal_handler_unblock (GTK_OBJECT (list), combo->list_change_id);
550 gtk_combo_update_list (GtkEntry * entry, GtkCombo * combo)
552 GtkList *list = GTK_LIST (combo->list);
553 GList *slist = list->selection;
556 gtk_grab_remove (GTK_WIDGET (combo));
558 gtk_signal_handler_block (GTK_OBJECT (entry), combo->entry_change_id);
559 if (slist && slist->data)
560 gtk_list_unselect_child (list, GTK_WIDGET (slist->data));
561 li = gtk_combo_find (combo);
563 gtk_list_select_child (list, GTK_WIDGET (li));
564 gtk_signal_handler_unblock (GTK_OBJECT (entry), combo->entry_change_id);
568 gtk_combo_button_press (GtkWidget * widget, GdkEvent * event, GtkCombo * combo)
572 child = gtk_get_event_widget (event);
574 /* We don't ask for button press events on the grab widget, so
575 * if an event is reported directly to the grab widget, it must
576 * be on a window outside the application (and thus we remove
577 * the popup window). Otherwise, we check if the widget is a child
578 * of the grab widget, and only remove the popup window if it
587 child = child->parent;
591 gtk_widget_hide (combo->popwin);
592 gtk_grab_remove (combo->popwin);
593 gdk_pointer_ungrab (event->button.time);
599 gtk_combo_button_release (GtkWidget *widget,
605 /* Horrible hack to get connect-after effect without regard to the return value of the default
608 gtk_signal_handler_block_by_func (GTK_OBJECT (widget),
609 GTK_SIGNAL_FUNC (gtk_combo_button_release),
611 gtk_widget_event (widget, event);
612 gtk_signal_handler_unblock_by_func (GTK_OBJECT (widget),
613 GTK_SIGNAL_FUNC (gtk_combo_button_release),
616 if ((combo->current_button != 0) && (event->button.button == 1))
618 /* This was the initial button press */
620 GdkEventCrossing tmp_event;
622 combo->current_button = 0;
624 if (widget != combo->button)
625 gtk_widget_event (combo->button, event);
627 /* Un-pre-highlight */
629 tmp_event.type = GDK_LEAVE_NOTIFY;
630 tmp_event.window = combo->button->window;
631 tmp_event.send_event = TRUE;
632 tmp_event.subwindow = NULL;
633 tmp_event.detail = GDK_NOTIFY_ANCESTOR;
635 gtk_widget_event (combo->button, (GdkEvent *)&tmp_event);
637 /* Check to see if we released inside the button */
638 child = gtk_get_event_widget ((GdkEvent*) event);
640 while (child && child != (combo->button))
641 child = child->parent;
643 if (child == combo->button)
645 gtk_grab_add (combo->popwin);
646 gdk_pointer_grab (combo->popwin->window, TRUE,
647 GDK_BUTTON_PRESS_MASK |
648 GDK_BUTTON_RELEASE_MASK |
649 GDK_POINTER_MOTION_MASK,
650 NULL, NULL, GDK_CURRENT_TIME);
656 /* The user has clicked inside the popwin and released */
658 if (GTK_WIDGET_HAS_GRAB (combo->popwin))
660 gtk_grab_remove (combo->popwin);
661 gdk_pointer_ungrab (event->button.time);
665 gtk_widget_hide (combo->popwin);
671 gtk_combo_list_enter (GtkWidget *widget,
672 GdkEventCrossing *event,
675 GtkWidget *event_widget;
677 event_widget = gtk_get_event_widget ((GdkEvent*) event);
679 if ((event_widget == combo->list) &&
680 (combo->current_button != 0) &&
681 (!GTK_WIDGET_HAS_GRAB (combo->list)))
685 GdkModifierType mask;
687 gtk_grab_remove (combo->popwin);
689 /* Transfer the grab over to the list by synthesizing
690 * a button press event
692 gdk_window_get_pointer (combo->list->window, &x, &y, &mask);
694 tmp_event.button.type = GDK_BUTTON_PRESS;
695 tmp_event.button.window = combo->list->window;
696 tmp_event.button.send_event = TRUE;
697 tmp_event.button.time = GDK_CURRENT_TIME; /* bad */
698 tmp_event.button.x = x;
699 tmp_event.button.y = y;
700 /* We leave all the XInput fields unfilled here, in the expectation
701 * that GtkList doesn't care.
703 tmp_event.button.button = combo->current_button;
704 tmp_event.button.state = mask;
706 gtk_widget_event (combo->list, &tmp_event);
713 gtk_combo_list_key_press (GtkWidget * widget, GdkEventKey * event, GtkCombo * combo)
715 if (event->keyval == GDK_Escape)
717 if (GTK_WIDGET_HAS_GRAB (combo->popwin))
719 gtk_grab_remove (combo->popwin);
720 gdk_pointer_ungrab (GDK_CURRENT_TIME);
722 else if (GTK_WIDGET_HAS_GRAB (combo->list))
723 gtk_list_end_drag_selection (GTK_LIST (combo->list));
724 gtk_widget_hide (combo->popwin);
725 if (GTK_WIDGET_HAS_GRAB (combo->button))
727 combo->current_button = 0;
728 GTK_BUTTON (combo->button)->in_button = FALSE;
729 gtk_button_released (GTK_BUTTON (combo->button));
730 gtk_grab_remove (combo->button);
738 gtk_combo_init (GtkCombo * combo)
742 GtkWidget *event_box;
745 combo->case_sensitive = FALSE;
746 combo->value_in_list = FALSE;
747 combo->ok_if_empty = TRUE;
748 combo->use_arrows = TRUE;
749 combo->use_arrows_always = FALSE;
750 combo->entry = gtk_entry_new ();
751 combo->button = gtk_button_new ();
752 combo->current_button = 0;
753 arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_OUT);
754 gtk_widget_show (arrow);
755 gtk_container_add (GTK_CONTAINER (combo->button), arrow);
756 gtk_box_pack_start (GTK_BOX (combo), combo->entry, TRUE, TRUE, 0);
757 gtk_box_pack_end (GTK_BOX (combo), combo->button, FALSE, FALSE, 0);
758 GTK_WIDGET_UNSET_FLAGS (combo->button, GTK_CAN_FOCUS);
759 gtk_widget_show (combo->entry);
760 gtk_widget_show (combo->button);
761 combo->entry_change_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "changed",
762 (GtkSignalFunc) gtk_combo_update_list, combo);
763 gtk_signal_connect (GTK_OBJECT (combo->entry), "key_press_event",
764 (GtkSignalFunc) gtk_combo_entry_key_press, combo);
765 gtk_signal_connect_after (GTK_OBJECT (combo->entry), "focus_out_event",
766 (GtkSignalFunc) gtk_combo_entry_focus_out, combo);
767 combo->activate_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "activate",
768 (GtkSignalFunc) gtk_combo_activate, combo);
769 gtk_signal_connect (GTK_OBJECT (combo->button), "button_press_event",
770 (GtkSignalFunc) gtk_combo_popup_button_press, combo);
771 /*gtk_signal_connect_after (GTK_OBJECT (combo->button), "button_release_event",
772 (GtkSignalFunc) gtk_combo_button_release, combo);*/
773 gtk_signal_connect (GTK_OBJECT (combo->button), "leave_notify_event",
774 (GtkSignalFunc) gtk_combo_popup_button_leave, combo);
775 /*gtk_signal_connect(GTK_OBJECT(combo->button), "clicked",
776 (GtkSignalFunc)prelight_bug, combo); */
778 combo->popwin = gtk_window_new (GTK_WINDOW_POPUP);
779 gtk_widget_ref (combo->popwin);
780 gtk_window_set_policy (GTK_WINDOW (combo->popwin), 1, 1, 0);
782 gtk_signal_connect (GTK_OBJECT (combo->popwin), "key_press_event",
783 GTK_SIGNAL_FUNC (gtk_combo_window_key_press), combo);
785 gtk_widget_set_events (combo->popwin, GDK_KEY_PRESS_MASK);
787 event_box = gtk_event_box_new ();
788 gtk_container_add (GTK_CONTAINER (combo->popwin), event_box);
789 gtk_widget_show (event_box);
791 gtk_widget_realize (event_box);
792 cursor = gdk_cursor_new (GDK_TOP_LEFT_ARROW);
793 gdk_window_set_cursor (event_box->window, cursor);
794 gdk_cursor_destroy (cursor);
796 frame = gtk_frame_new (NULL);
797 gtk_container_add (GTK_CONTAINER (event_box), frame);
798 gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
799 gtk_widget_show (frame);
801 combo->popup = gtk_scrolled_window_new (NULL, NULL);
802 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (combo->popup),
803 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
804 GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (combo->popup)->hscrollbar, GTK_CAN_FOCUS);
805 GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (combo->popup)->vscrollbar, GTK_CAN_FOCUS);
806 gtk_container_add (GTK_CONTAINER (frame), combo->popup);
807 gtk_widget_show (combo->popup);
809 combo->list = gtk_list_new ();
810 /* We'll use enter notify events to figure out when to transfer
811 * the grab to the list
813 gtk_widget_set_events (combo->list, GDK_ENTER_NOTIFY_MASK);
815 gtk_list_set_selection_mode(GTK_LIST(combo->list), GTK_SELECTION_BROWSE);
816 gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (combo->popup), combo->list);
817 gtk_container_set_focus_vadjustment (GTK_CONTAINER (combo->list),
818 gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (combo->popup)));
819 gtk_container_set_focus_hadjustment (GTK_CONTAINER (combo->list),
820 gtk_scrolled_window_get_hadjustment (GTK_SCROLLED_WINDOW (combo->popup)));
821 gtk_widget_show (combo->list);
823 combo->list_change_id = gtk_signal_connect (GTK_OBJECT (combo->list), "selection_changed",
824 (GtkSignalFunc) gtk_combo_update_entry, combo);
825 gtk_signal_connect (GTK_OBJECT (combo->popwin), "key_press_event",
826 (GtkSignalFunc) gtk_combo_list_key_press, combo);
827 gtk_signal_connect (GTK_OBJECT (combo->popwin), "button_press_event",
828 GTK_SIGNAL_FUNC (gtk_combo_button_press), combo);
830 gtk_signal_connect (GTK_OBJECT (combo->list), "button_release_event",
831 GTK_SIGNAL_FUNC (gtk_combo_button_release), combo);
832 /* We connect here on the button, because we'll have a grab on it
833 * when the event occurs. But we are actually interested in enters
834 * for the combo->list.
836 gtk_signal_connect (GTK_OBJECT (combo->button), "enter_notify_event",
837 GTK_SIGNAL_FUNC (gtk_combo_list_enter), combo);
841 gtk_combo_get_type (void)
843 static GtkType combo_type = 0;
847 static const GtkTypeInfo combo_info =
851 sizeof (GtkComboClass),
852 (GtkClassInitFunc) gtk_combo_class_init,
853 (GtkObjectInitFunc) gtk_combo_init,
854 /* reserved_1 */ NULL,
855 /* reserved_2 */ NULL,
856 (GtkClassInitFunc) NULL,
858 combo_type = gtk_type_unique (GTK_TYPE_HBOX, &combo_info);
866 return GTK_WIDGET (gtk_type_new (GTK_TYPE_COMBO));
870 gtk_combo_set_value_in_list (GtkCombo * combo, gboolean val, gboolean ok_if_empty)
872 g_return_if_fail (combo != NULL);
873 g_return_if_fail (GTK_IS_COMBO (combo));
875 combo->value_in_list = val;
876 combo->ok_if_empty = ok_if_empty;
880 gtk_combo_set_case_sensitive (GtkCombo * combo, gboolean val)
882 g_return_if_fail (combo != NULL);
883 g_return_if_fail (GTK_IS_COMBO (combo));
885 combo->case_sensitive = val;
886 g_object_notify (G_OBJECT (combo), "case_sensitive");
890 gtk_combo_set_use_arrows (GtkCombo * combo, gboolean val)
892 g_return_if_fail (combo != NULL);
893 g_return_if_fail (GTK_IS_COMBO (combo));
895 combo->use_arrows = val;
896 g_object_notify (G_OBJECT (combo), "enable_arrows");
900 gtk_combo_set_use_arrows_always (GtkCombo * combo, gboolean val)
902 g_return_if_fail (combo != NULL);
903 g_return_if_fail (GTK_IS_COMBO (combo));
905 combo->use_arrows_always = val;
906 combo->use_arrows = TRUE;
907 g_object_notify (G_OBJECT (combo), "enable_arrows");
908 g_object_notify (G_OBJECT (combo), "enable_arrows_always");
912 gtk_combo_set_popdown_strings (GtkCombo * combo, GList * strings)
917 g_return_if_fail (combo != NULL);
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 (combo != NULL);
952 g_return_if_fail (GTK_IS_COMBO (combo));
953 g_return_if_fail (item != NULL);
955 val = gtk_object_get_data (GTK_OBJECT (item), gtk_combo_string_key);
963 val = g_strdup(item_value);
964 gtk_object_set_data (GTK_OBJECT (item), gtk_combo_string_key, val);
966 gtk_signal_connect (GTK_OBJECT (item), "destroy",
967 (GtkSignalFunc) gtk_combo_item_destroy, val);
971 gtk_object_set_data (GTK_OBJECT (item), gtk_combo_string_key, NULL);
973 gtk_signal_disconnect_by_data(GTK_OBJECT (item), val);
978 gtk_combo_size_allocate (GtkWidget *widget,
979 GtkAllocation *allocation)
983 g_return_if_fail (widget != NULL);
984 g_return_if_fail (GTK_IS_COMBO (widget));
985 g_return_if_fail (allocation != NULL);
987 GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
989 combo = GTK_COMBO (widget);
991 if (combo->entry->allocation.height > combo->entry->requisition.height)
993 GtkAllocation button_allocation;
995 button_allocation = combo->button->allocation;
996 button_allocation.height = combo->entry->requisition.height;
997 button_allocation.y = combo->entry->allocation.y +
998 (combo->entry->allocation.height - combo->entry->requisition.height)
1000 gtk_widget_size_allocate (combo->button, &button_allocation);
1005 gtk_combo_disable_activate (GtkCombo* combo)
1007 g_return_if_fail (combo != NULL);
1008 g_return_if_fail (GTK_IS_COMBO (combo));
1010 if ( combo->activate_id ) {
1011 gtk_signal_disconnect(GTK_OBJECT(combo->entry), combo->activate_id);
1012 combo->activate_id = 0;
1017 gtk_combo_set_property (GObject *object,
1019 const GValue *value,
1022 GtkCombo *combo = GTK_COMBO (object);
1026 case PROP_ENABLE_ARROW_KEYS:
1027 /* This call does the notification */
1028 gtk_combo_set_use_arrows (combo, g_value_get_boolean (value));
1030 case PROP_ENABLE_ARROWS_ALWAYS:
1031 /* This call does the notification */
1032 gtk_combo_set_use_arrows_always (combo, g_value_get_boolean (value));
1034 case PROP_CASE_SENSITIVE:
1035 /* This call does the notification */
1036 gtk_combo_set_case_sensitive (combo, g_value_get_boolean (value));
1039 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1046 gtk_combo_get_property (GObject *object,
1051 GtkCombo *combo = GTK_COMBO (object);
1055 case PROP_ENABLE_ARROW_KEYS:
1056 g_value_set_boolean (value, combo->use_arrows);
1058 case PROP_ENABLE_ARROWS_ALWAYS:
1059 g_value_set_boolean (value, combo->use_arrows_always);
1061 case PROP_CASE_SENSITIVE:
1062 g_value_set_boolean (value, combo->case_sensitive);
1065 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);