/* gtkcombo - combo widget for gtk+ * Copyright 1997 Paolo Molaro * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include #include "gtkarrow.h" #include "gtklabel.h" #include "gtklist.h" #include "gtkentry.h" #include "gtkeventbox.h" #include "gtkbutton.h" #include "gtklistitem.h" #include "gtkscrolledwindow.h" #include "gtkmain.h" #include "gtksignal.h" #include "gtkwindow.h" #include "gdk/gdkkeysyms.h" #include "gtkcombo.h" #include "gtkframe.h" const gchar *gtk_combo_string_key = "gtk-combo-string-value"; #define COMBO_LIST_MAX_HEIGHT (400) #define EMPTY_LIST_HEIGHT (15) static void gtk_combo_class_init (GtkComboClass *klass); static void gtk_combo_init (GtkCombo *combo); static void gtk_combo_destroy (GtkObject *combo); static GtkListItem *gtk_combo_find (GtkCombo *combo); static gchar * gtk_combo_func (GtkListItem *li); static gint gtk_combo_focus_idle (GtkCombo *combo); static gint gtk_combo_entry_focus_out (GtkEntry *entry, GdkEventFocus *event, GtkCombo *combo); static void gtk_combo_get_pos (GtkCombo *combo, gint *x, gint *y, gint *height, gint *width); static void gtk_combo_popup_list (GtkCombo *combo); static void gtk_combo_activate (GtkWidget *widget, GtkCombo *combo); static void gtk_combo_popup_button_press (GtkWidget *button, GdkEventButton *event, GtkCombo *combo); static void gtk_combo_popup_button_leave (GtkWidget *button, GdkEventCrossing *event, GtkCombo *combo); static void gtk_combo_update_entry (GtkList *list, GtkCombo *combo); static void gtk_combo_update_list (GtkEntry *entry, GtkCombo *combo); static gint gtk_combo_button_press (GtkWidget *widget, GdkEvent *event, GtkCombo *combo); static gint gtk_combo_button_release (GtkWidget *widget, GdkEvent *event, GtkCombo *combo); static gint gtk_combo_list_enter (GtkWidget *widget, GdkEventCrossing *event, GtkCombo *combo); static gint gtk_combo_list_key_press (GtkWidget *widget, GdkEventKey *event, GtkCombo *combo); static gint gtk_combo_entry_key_press (GtkEntry *widget, GdkEventKey *event, GtkCombo *combo); static void gtk_combo_item_destroy (GtkObject *object); static void gtk_combo_size_allocate (GtkWidget *widget, GtkAllocation *allocation); static GtkHBoxClass *parent_class = NULL; static void gtk_combo_class_init (GtkComboClass * klass) { GtkObjectClass *oclass; GtkWidgetClass *widget_class; parent_class = gtk_type_class (gtk_hbox_get_type ()); oclass = (GtkObjectClass *) klass; widget_class = (GtkWidgetClass *) klass; oclass->destroy = gtk_combo_destroy; widget_class->size_allocate = gtk_combo_size_allocate; } static void gtk_combo_destroy (GtkObject * combo) { gtk_widget_destroy (GTK_COMBO (combo)->popwin); gtk_widget_unref (GTK_COMBO (combo)->popwin); if (GTK_OBJECT_CLASS (parent_class)->destroy) (*GTK_OBJECT_CLASS (parent_class)->destroy) (combo); } static int gtk_combo_entry_key_press (GtkEntry * entry, GdkEventKey * event, GtkCombo * combo) { GList *li; /* completion */ if (event->keyval == GDK_Tab) { GCompletion * cmpl; gchar* prefix; gchar* nprefix = NULL; gint pos; gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "key_press_event"); cmpl = g_completion_new((GCompletionFunc)gtk_combo_func); g_completion_add_items(cmpl, GTK_LIST(combo->list)->children); pos = GTK_EDITABLE(entry)->current_pos; prefix = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, pos); g_completion_complete(cmpl, prefix, &nprefix); if (nprefix && strlen(nprefix) > strlen(prefix)) { gtk_editable_insert_text(GTK_EDITABLE(entry), nprefix+pos, strlen(nprefix)-strlen(prefix), &pos); GTK_EDITABLE(entry)->current_pos = pos; } g_free(prefix); g_completion_free(cmpl); return TRUE; } if (!combo->use_arrows || !GTK_LIST (combo->list)->children) return FALSE; li = g_list_find (GTK_LIST (combo->list)->children, gtk_combo_find (combo)); if ((event->keyval == GDK_Up) || (event->keyval == GDK_KP_Up) || ((event->state & GDK_MOD1_MASK) && ((event->keyval == 'p') || (event->keyval == 'P')))) { if (li) li = li->prev; if (!li && combo->use_arrows_always) { li = g_list_last (GTK_LIST (combo->list)->children); } if (li) { gtk_list_select_child (GTK_LIST (combo->list), GTK_WIDGET (li->data)); gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "key_press_event"); return TRUE; } } else if ((event->keyval == GDK_Down) || (event->keyval == GDK_KP_Down) || ((event->state & GDK_MOD1_MASK) && ((event->keyval == 'n') || (event->keyval == 'N')))) { if (li) li = li->next; if (!li && combo->use_arrows_always) { li = GTK_LIST (combo->list)->children; } if (li) { gtk_list_select_child (GTK_LIST (combo->list), GTK_WIDGET (li->data)); gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "key_press_event"); return TRUE; } } return FALSE; } static GtkListItem * gtk_combo_find (GtkCombo * combo) { gchar *text; gchar *ltext; GList *clist; int (*string_compare) (const char *, const char *); if (combo->case_sensitive) string_compare = strcmp; else string_compare = g_strcasecmp; text = gtk_entry_get_text (GTK_ENTRY (combo->entry)); clist = GTK_LIST (combo->list)->children; while (clist && clist->data) { ltext = gtk_combo_func (GTK_LIST_ITEM (clist->data)); if (!ltext) continue; if (!(*string_compare) (ltext, text)) return (GtkListItem *) clist->data; clist = clist->next; } return NULL; } static gchar * gtk_combo_func (GtkListItem * li) { GtkWidget *label; gchar *ltext = NULL; ltext = (gchar *) gtk_object_get_data (GTK_OBJECT (li), gtk_combo_string_key); if (!ltext) { label = GTK_BIN (li)->child; if (!label || !GTK_IS_LABEL (label)) return NULL; gtk_label_get (GTK_LABEL (label), <ext); } return ltext; } static gint gtk_combo_focus_idle (GtkCombo * combo) { if (combo) gtk_widget_grab_focus (combo->entry); return FALSE; } static gint gtk_combo_entry_focus_out (GtkEntry * entry, GdkEventFocus * event, GtkCombo * combo) { if (combo->value_in_list && !gtk_combo_find (combo)) { /* gdk_beep(); *//* this can be annoying */ if (combo->ok_if_empty && !strcmp (gtk_entry_get_text (entry), "")) return FALSE; #ifdef TEST printf ("INVALID ENTRY: `%s'\n", gtk_entry_get_text (entry)); #endif gtk_grab_add (GTK_WIDGET (combo)); /* this is needed because if we call gtk_widget_grab_focus() it isn't guaranteed it's the *last* call before the main-loop, so the focus can be lost anyway... the signal_emit_stop doesn't seem to work either... */ gtk_idle_add ((GtkFunction) gtk_combo_focus_idle, combo); /*gtk_signal_emit_stop_by_name (GTK_OBJECT (entry), "focus_out_event"); */ return TRUE; } return FALSE; } static void gtk_combo_get_pos (GtkCombo * combo, gint * x, gint * y, gint * height, gint * width) { GtkBin *popwin; GtkWidget *widget; GtkScrolledWindow *popup; gint real_height; GtkRequisition list_requisition; gboolean show_hscroll = FALSE; gboolean show_vscroll = FALSE; gint avail_height; gint min_height; gint alloc_width; gint work_height; gint old_height; gint old_width; widget = GTK_WIDGET(combo); popup = GTK_SCROLLED_WINDOW (combo->popup); popwin = GTK_BIN (combo->popwin); gdk_window_get_origin (combo->entry->window, x, y); real_height = MIN (combo->entry->requisition.height, combo->entry->allocation.height); *y += real_height; avail_height = gdk_screen_height () - *y; gtk_widget_size_request (combo->list, &list_requisition); min_height = MIN (list_requisition.height, popup->vscrollbar->requisition.height); if (!GTK_LIST (combo->list)->children) list_requisition.height += EMPTY_LIST_HEIGHT; alloc_width = (widget->allocation.width - 2 * popwin->child->style->klass->xthickness - 2 * GTK_CONTAINER (popwin->child)->border_width - 2 * GTK_CONTAINER (combo->popup)->border_width - 2 * GTK_CONTAINER (popup->viewport)->border_width - 2 * popup->viewport->style->klass->xthickness); work_height = (2 * popwin->child->style->klass->ythickness + 2 * GTK_CONTAINER (popwin->child)->border_width + 2 * GTK_CONTAINER (combo->popup)->border_width + 2 * GTK_CONTAINER (popup->viewport)->border_width + 2 * popup->viewport->style->klass->xthickness); do { old_width = alloc_width; old_height = work_height; if (!show_hscroll && alloc_width < list_requisition.width) { work_height += popup->hscrollbar->requisition.height + GTK_SCROLLED_WINDOW_CLASS (GTK_OBJECT (combo->popup)->klass)->scrollbar_spacing; show_hscroll = TRUE; } if (!show_vscroll && work_height + list_requisition.height > avail_height) { if (work_height + min_height > avail_height && *y - real_height > avail_height) { *y -= (work_height + list_requisition.height + real_height); break; } alloc_width -= popup->vscrollbar->requisition.width + GTK_SCROLLED_WINDOW_CLASS (GTK_OBJECT (combo->popup)->klass)->scrollbar_spacing; show_vscroll = TRUE; } } while (old_width != alloc_width || old_height != work_height); *width = widget->allocation.width; if (show_vscroll) *height = avail_height; else *height = work_height + list_requisition.height; if (*x < 0) *x = 0; } static void gtk_combo_popup_list (GtkCombo * combo) { gint height, width, x, y; gint old_width, old_height; old_width = combo->popwin->allocation.width; old_height = combo->popwin->allocation.height; gtk_combo_get_pos (combo, &x, &y, &height, &width); /* workaround for gtk_scrolled_window_size_allocate bug */ if (old_width != width || old_height != height) { gtk_widget_hide (GTK_SCROLLED_WINDOW (combo->popup)->hscrollbar); gtk_widget_hide (GTK_SCROLLED_WINDOW (combo->popup)->vscrollbar); } gtk_widget_set_uposition (combo->popwin, x, y); gtk_widget_set_usize (combo->popwin, width, height); gtk_widget_realize (combo->popwin); gdk_window_resize (combo->popwin->window, width, height); gtk_widget_show (combo->popwin); gtk_widget_grab_focus (combo->popwin); } static void gtk_combo_activate (GtkWidget *widget, GtkCombo *combo) { gtk_combo_popup_list (combo); if (!GTK_WIDGET_HAS_FOCUS (combo->entry)) gtk_widget_grab_focus (combo->entry); gtk_grab_add (combo->popwin); gdk_pointer_grab (combo->popwin->window, TRUE, GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK, NULL, NULL, GDK_CURRENT_TIME); } static void gtk_combo_popup_button_press (GtkWidget *button, GdkEventButton *event, GtkCombo *combo) { if (!GTK_WIDGET_HAS_FOCUS (combo->entry)) gtk_widget_grab_focus (combo->entry); if (!combo->current_button && (event->button == 1)) gtk_combo_popup_list (combo); combo->current_button = event->button; GTK_LIST (combo->list)->drag_selection = TRUE; gdk_pointer_grab (combo->list->window, TRUE, GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON1_MOTION_MASK | GDK_BUTTON_RELEASE_MASK, NULL, NULL, event->time); gtk_grab_add (combo->list); } static void gtk_combo_popup_button_leave (GtkWidget *button, GdkEventCrossing *event, GtkCombo *combo) { if (combo->current_button) gtk_signal_emit_stop_by_name (GTK_OBJECT (button), "leave_notify_event"); } static void gtk_combo_update_entry (GtkList * list, GtkCombo * combo) { char *text; gtk_grab_remove (GTK_WIDGET (combo)); gtk_signal_handler_block (GTK_OBJECT (list), combo->list_change_id); if (list->selection) { text = gtk_combo_func (GTK_LIST_ITEM (list->selection->data)); if (!text) text = ""; gtk_entry_set_text (GTK_ENTRY (combo->entry), text); } gtk_signal_handler_unblock (GTK_OBJECT (list), combo->list_change_id); } static void gtk_combo_update_list (GtkEntry * entry, GtkCombo * combo) { GtkList *list = GTK_LIST (combo->list); GList *slist = list->selection; GtkListItem *li; gtk_grab_remove (GTK_WIDGET (combo)); gtk_signal_handler_block (GTK_OBJECT (entry), combo->entry_change_id); if (slist && slist->data) gtk_list_unselect_child (list, GTK_WIDGET (slist->data)); li = gtk_combo_find (combo); if (li) gtk_list_select_child (list, GTK_WIDGET (li)); gtk_signal_handler_unblock (GTK_OBJECT (entry), combo->entry_change_id); } static gint gtk_combo_button_press (GtkWidget * widget, GdkEvent * event, GtkCombo * combo) { GtkWidget *child; child = gtk_get_event_widget (event); /* We don't ask for button press events on the grab widget, so * if an event is reported directly to the grab widget, it must * be on a window outside the application (and thus we remove * the popup window). Otherwise, we check if the widget is a child * of the grab widget, and only remove the popup window if it * is not. */ if (child != widget) { while (child) { if (child == widget) return FALSE; child = child->parent; } } gtk_widget_hide (combo->popwin); gtk_grab_remove (combo->popwin); gdk_pointer_ungrab (event->button.time); return TRUE; } static gint gtk_combo_button_release (GtkWidget * widget, GdkEvent * event, GtkCombo * combo) { GtkWidget *child; if ((combo->current_button != 0) && (event->button.button == 1)) { /* This was the initial button press */ GdkEventCrossing tmp_event; combo->current_button = 0; if (widget != combo->button) gtk_widget_event (combo->button, event); /* Un-pre-hightlight */ tmp_event.type = GDK_LEAVE_NOTIFY; tmp_event.window = combo->button->window; tmp_event.send_event = TRUE; tmp_event.subwindow = NULL; tmp_event.detail = GDK_NOTIFY_ANCESTOR; gtk_widget_event (combo->button, (GdkEvent *)&tmp_event); /* Check to see if we released inside the button */ child = gtk_get_event_widget ((GdkEvent*) event); while (child && child != (combo->button)) child = child->parent; if (child == combo->button) { gtk_grab_add (combo->popwin); gdk_pointer_grab (combo->popwin->window, TRUE, GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK, NULL, NULL, GDK_CURRENT_TIME); return FALSE; } } else { /* The user has clicked inside the popwin and released */ if (GTK_WIDGET_HAS_GRAB (combo->popwin)) { gtk_grab_remove (combo->popwin); gdk_pointer_ungrab (event->button.time); } } gtk_widget_hide (combo->popwin); return TRUE; } static gint gtk_combo_list_enter (GtkWidget *widget, GdkEventCrossing *event, GtkCombo *combo) { GtkWidget *event_widget; event_widget = gtk_get_event_widget ((GdkEvent*) event); if ((event_widget == combo->list) && (combo->current_button != 0) && (!GTK_WIDGET_HAS_GRAB (combo->list))) { GdkEvent tmp_event; gint x, y; GdkModifierType mask; gtk_grab_remove (combo->popwin); /* Transfer the grab over to the list by synthesizing * a button press event */ gdk_window_get_pointer (combo->list->window, &x, &y, &mask); tmp_event.button.type = GDK_BUTTON_PRESS; tmp_event.button.window = combo->list->window; tmp_event.button.send_event = TRUE; tmp_event.button.time = GDK_CURRENT_TIME; /* bad */ tmp_event.button.x = x; tmp_event.button.y = y; /* We leave all the XInput fields unfilled here, in the expectation * that GtkList doesn't care. */ tmp_event.button.button = combo->current_button; tmp_event.button.state = mask; gtk_widget_event (combo->list, &tmp_event); } return FALSE; } static int gtk_combo_list_key_press (GtkWidget * widget, GdkEventKey * event, GtkCombo * combo) { if (event->keyval == GDK_Escape) { if (GTK_WIDGET_HAS_GRAB (combo->popwin)) { gtk_grab_remove (combo->popwin); gdk_pointer_ungrab (GDK_CURRENT_TIME); } else if (GTK_WIDGET_HAS_GRAB (combo->list)) gtk_list_end_drag_selection (GTK_LIST (combo->list)); gtk_widget_hide (combo->popwin); if (GTK_WIDGET_HAS_GRAB (combo->button)) { combo->current_button = 0; GTK_BUTTON (combo->button)->in_button = FALSE; gtk_button_released (GTK_BUTTON (combo->button)); gtk_grab_remove (combo->button); } return TRUE; } return FALSE; } static void gtk_combo_init (GtkCombo * combo) { GtkWidget *arrow; GtkWidget *frame; GtkWidget *event_box; GdkCursor *cursor; combo->case_sensitive = 0; combo->value_in_list = 0; combo->ok_if_empty = 1; combo->use_arrows = 1; combo->use_arrows_always = 0; combo->entry = gtk_entry_new (); combo->button = gtk_button_new (); combo->current_button = 0; arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_OUT); gtk_widget_show (arrow); gtk_container_add (GTK_CONTAINER (combo->button), arrow); gtk_box_pack_start (GTK_BOX (combo), combo->entry, TRUE, TRUE, 0); gtk_box_pack_end (GTK_BOX (combo), combo->button, FALSE, FALSE, 0); GTK_WIDGET_UNSET_FLAGS (combo->button, GTK_CAN_FOCUS); gtk_widget_show (combo->entry); gtk_widget_show (combo->button); combo->entry_change_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "changed", (GtkSignalFunc) gtk_combo_update_list, combo); gtk_signal_connect (GTK_OBJECT (combo->entry), "key_press_event", (GtkSignalFunc) gtk_combo_entry_key_press, combo); gtk_signal_connect_after (GTK_OBJECT (combo->entry), "focus_out_event", (GtkSignalFunc) gtk_combo_entry_focus_out, combo); combo->activate_id = gtk_signal_connect (GTK_OBJECT (combo->entry), "activate", (GtkSignalFunc) gtk_combo_activate, combo); gtk_signal_connect_after (GTK_OBJECT (combo->button), "button_press_event", (GtkSignalFunc) gtk_combo_popup_button_press, combo); /*gtk_signal_connect_after (GTK_OBJECT (combo->button), "button_release_event", (GtkSignalFunc) gtk_combo_button_release, combo);*/ gtk_signal_connect (GTK_OBJECT (combo->button), "leave_notify_event", (GtkSignalFunc) gtk_combo_popup_button_leave, combo); /*gtk_signal_connect(GTK_OBJECT(combo->button), "clicked", (GtkSignalFunc)prelight_bug, combo); */ combo->popwin = gtk_window_new (GTK_WINDOW_POPUP); gtk_widget_ref (combo->popwin); gtk_window_set_policy (GTK_WINDOW (combo->popwin), 1, 1, 0); gtk_widget_set_events (combo->popwin, GDK_KEY_PRESS_MASK); event_box = gtk_event_box_new (); gtk_container_add (GTK_CONTAINER (combo->popwin), event_box); gtk_widget_show (event_box); gtk_widget_realize (event_box); cursor = gdk_cursor_new (GDK_TOP_LEFT_ARROW); gdk_window_set_cursor (event_box->window, cursor); gdk_cursor_destroy (cursor); frame = gtk_frame_new (NULL); gtk_container_add (GTK_CONTAINER (event_box), frame); gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT); gtk_widget_show (frame); combo->popup = gtk_scrolled_window_new (NULL, NULL); gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (combo->popup), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (combo->popup)->hscrollbar, GTK_CAN_FOCUS); GTK_WIDGET_UNSET_FLAGS (GTK_SCROLLED_WINDOW (combo->popup)->vscrollbar, GTK_CAN_FOCUS); gtk_container_add (GTK_CONTAINER (frame), combo->popup); gtk_widget_show (combo->popup); combo->list = gtk_list_new (); /* We'll use enter notify events to figure out when to transfer * the grab to the list */ gtk_widget_set_events (combo->list, GDK_ENTER_NOTIFY_MASK); gtk_list_set_selection_mode(GTK_LIST(combo->list), GTK_SELECTION_BROWSE); gtk_container_add (GTK_CONTAINER (combo->popup), combo->list); gtk_container_set_focus_vadjustment (GTK_CONTAINER (combo->list), gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (combo->popup))); gtk_container_set_focus_hadjustment (GTK_CONTAINER (combo->list), gtk_scrolled_window_get_hadjustment (GTK_SCROLLED_WINDOW (combo->popup))); gtk_widget_show (combo->list); combo->list_change_id = gtk_signal_connect (GTK_OBJECT (combo->list), "selection_changed", (GtkSignalFunc) gtk_combo_update_entry, combo); gtk_signal_connect (GTK_OBJECT (combo->popwin), "key_press_event", (GtkSignalFunc) gtk_combo_list_key_press, combo); gtk_signal_connect (GTK_OBJECT (combo->popwin), "button_press_event", GTK_SIGNAL_FUNC (gtk_combo_button_press), combo); gtk_signal_connect_after (GTK_OBJECT (combo->list), "button_release_event", GTK_SIGNAL_FUNC (gtk_combo_button_release), combo); /* We connect here on the button, because we'll have a grab on it * when the event occurs. But we are actually interested in enters * for the combo->list. */ gtk_signal_connect (GTK_OBJECT (combo->button), "enter_notify_event", GTK_SIGNAL_FUNC (gtk_combo_list_enter), combo); } guint gtk_combo_get_type (void) { static guint combo_type = 0; if (!combo_type) { GtkTypeInfo combo_info = { "GtkCombo", sizeof (GtkCombo), sizeof (GtkComboClass), (GtkClassInitFunc) gtk_combo_class_init, (GtkObjectInitFunc) gtk_combo_init, /* reserved_1 */ NULL, /* reserved_2 */ NULL, (GtkClassInitFunc) NULL, }; combo_type = gtk_type_unique (gtk_hbox_get_type (), &combo_info); } return combo_type; } GtkWidget * gtk_combo_new (void) { return GTK_WIDGET (gtk_type_new (gtk_combo_get_type ())); } void gtk_combo_set_value_in_list (GtkCombo * combo, gint val, gint ok_if_empty) { g_return_if_fail (combo != NULL); g_return_if_fail (GTK_IS_COMBO (combo)); combo->value_in_list = val; combo->ok_if_empty = ok_if_empty; } void gtk_combo_set_case_sensitive (GtkCombo * combo, gint val) { g_return_if_fail (combo != NULL); g_return_if_fail (GTK_IS_COMBO (combo)); combo->case_sensitive = val; } void gtk_combo_set_use_arrows (GtkCombo * combo, gint val) { g_return_if_fail (combo != NULL); g_return_if_fail (GTK_IS_COMBO (combo)); combo->use_arrows = val; } void gtk_combo_set_use_arrows_always (GtkCombo * combo, gint val) { g_return_if_fail (combo != NULL); g_return_if_fail (GTK_IS_COMBO (combo)); combo->use_arrows_always = val; combo->use_arrows = 1; } void gtk_combo_set_popdown_strings (GtkCombo * combo, GList * strings) { GList *list; GtkWidget *li; g_return_if_fail (combo != NULL); g_return_if_fail (GTK_IS_COMBO (combo)); g_return_if_fail (strings != NULL); gtk_list_clear_items (GTK_LIST (combo->list), 0, -1); list = strings; while (list) { li = gtk_list_item_new_with_label ((gchar *) list->data); gtk_widget_show (li); gtk_container_add (GTK_CONTAINER (combo->list), li); list = list->next; } } static void gtk_combo_item_destroy (GtkObject * object) { gchar *key; key = gtk_object_get_data (object, gtk_combo_string_key); if (key) g_free (key); } void gtk_combo_set_item_string (GtkCombo * combo, GtkItem * item, const gchar * item_value) { gchar *val; gint connected = 0; g_return_if_fail (combo != NULL); g_return_if_fail (GTK_IS_COMBO (combo)); g_return_if_fail (item != NULL); val = gtk_object_get_data (GTK_OBJECT (item), gtk_combo_string_key); if (val) { g_free (val); connected = 1; } if (item_value) { val = g_strdup(item_value); gtk_object_set_data (GTK_OBJECT (item), gtk_combo_string_key, val); if (!connected) gtk_signal_connect (GTK_OBJECT (item), "destroy", (GtkSignalFunc) gtk_combo_item_destroy, val); } else { gtk_object_set_data (GTK_OBJECT (item), gtk_combo_string_key, NULL); if (connected) gtk_signal_disconnect_by_data(GTK_OBJECT (item), val); } } static void gtk_combo_size_allocate (GtkWidget *widget, GtkAllocation *allocation) { GtkCombo *combo; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_COMBO (widget)); g_return_if_fail (allocation != NULL); GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation); combo = GTK_COMBO (widget); if (combo->entry->allocation.height > combo->entry->requisition.height) { GtkAllocation button_allocation; button_allocation = combo->button->allocation; button_allocation.height = combo->entry->requisition.height; button_allocation.y = combo->entry->allocation.y + (combo->entry->allocation.height - combo->entry->requisition.height) / 2; gtk_widget_size_allocate (combo->button, &button_allocation); } } void gtk_combo_disable_activate (GtkCombo* combo) { g_return_if_fail (combo != NULL); g_return_if_fail (GTK_IS_COMBO (combo)); if ( combo->activate_id ) { gtk_signal_disconnect(GTK_OBJECT(combo->entry), combo->activate_id); combo->activate_id = 0; } }