/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* gtk-combo-box.c - a customizable combobox
* Copyright 2000, 2001, Ximian, Inc.
*
* Authors:
* Miguel de Icaza (miguel@gnu.org)
* Adrian E Feiguin (feiguin@ifir.edu.ar)
* Paolo Molnaro (lupus@debian.org).
* Jon K Hellan (hellan@acm.org)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License, version 2, as published by the Free Software Foundation.
*
* 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 <config.h>
#include <gtk/gtkhbox.h>
#include <gtk/gtktogglebutton.h>
#include <gtk/gtkarrow.h>
#include <gtk/gtkeventbox.h>
#include <gtk/gtkmain.h>
#include <gtk/gtksignal.h>
#include <gtk/gtkwindow.h>
#include <gtk/gtkframe.h>
#include <gtk/gtkvbox.h>
#include <gtk/gtktearoffmenuitem.h>
#include <gdk/gdkkeysyms.h>
#include "gal-combo-box.h"
#include "gal/util/e-util.h"
#define PARENT_TYPE GTK_TYPE_HBOX
static GObjectClass *gal_combo_box_parent_class;
static int gtk_combo_toggle_pressed (GtkToggleButton *tbutton,
GalComboBox *combo_box);
static void gtk_combo_popup_tear_off (GalComboBox *combo,
gboolean set_position);
static void gtk_combo_set_tearoff_state (GalComboBox *combo,
gboolean torn_off);
static void gtk_combo_popup_reparent (GtkWidget *popup, GtkWidget *new_parent,
gboolean unrealize);
static gboolean cb_popup_delete (GtkWidget *w, GdkEventAny *event,
GalComboBox *combo);
static void gtk_combo_tearoff_bg_copy (GalComboBox *combo);
enum {
POP_DOWN_WIDGET,
POP_DOWN_DONE,
PRE_POP_DOWN,
POST_POP_HIDE,
LAST_SIGNAL
};
static guint gal_combo_box_signals [LAST_SIGNAL] = { 0, };
struct _GalComboBoxPrivate {
GtkWidget *pop_down_widget;
GtkWidget *display_widget;
/*
* Internal widgets used to implement the ComboBox
*/
GtkWidget *frame;
GtkWidget *arrow_button;
GtkWidget *toplevel; /* Popup's toplevel when not torn off */
GtkWidget *tearoff_window; /* Popup's toplevel when torn off */
guint torn_off;
GtkWidget *tearable; /* The tearoff "button" */
GtkWidget *popup; /* Popup */
/*
* Closure for invoking the callbacks above
*/
void *closure;
};
static void
gal_combo_box_finalize (GObject *object)
{
GalComboBox *combo_box = GAL_COMBO_BOX (object);
g_free (combo_box->priv);
gal_combo_box_parent_class->finalize (object);
}
static void
gal_combo_box_destroy (GtkObject *object)
{
GtkObjectClass *klass = (GtkObjectClass *)gal_combo_box_parent_class;
GalComboBox *combo_box = GAL_COMBO_BOX (object);
if (combo_box->priv->toplevel) {
gtk_object_destroy (GTK_OBJECT (combo_box->priv->toplevel));
combo_box->priv->toplevel = NULL;
}
if (combo_box->priv->tearoff_window) {
gtk_object_destroy (GTK_OBJECT (combo_box->priv->tearoff_window));
combo_box->priv->tearoff_window = NULL;
}
if (klass->destroy)
klass->destroy (object);
}
static gboolean
gal_combo_box_mnemonic_activate (GtkWidget *w, gboolean group_cycling)
{
GalComboBox *combo_box = GAL_COMBO_BOX (w);
gtk_toggle_button_set_active (
GTK_TOGGLE_BUTTON (combo_box->priv->arrow_button), TRUE);
return TRUE;
}
static void
gal_combo_box_class_init (GObjectClass *object_class)
{
GtkWidgetClass *widget_class = (GtkWidgetClass *)object_class;
gal_combo_box_parent_class = g_type_class_peek_parent (object_class);
object_class->finalize = gal_combo_box_finalize;
widget_class->mnemonic_activate = gal_combo_box_mnemonic_activate;
((GtkObjectClass *)object_class)->destroy = gal_combo_box_destroy;
gal_combo_box_signals [POP_DOWN_WIDGET] = g_signal_new (
"pop_down_widget",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GalComboBoxClass, pop_down_widget),
NULL, NULL,
e_marshal_POINTER__NONE,
G_TYPE_POINTER, 0, G_TYPE_NONE);
gal_combo_box_signals [POP_DOWN_DONE] = g_signal_new (
"pop_down_done",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GalComboBoxClass, pop_down_done),
NULL, NULL,
e_marshal_BOOLEAN__OBJECT,
G_TYPE_BOOLEAN, 1, G_TYPE_OBJECT);
gal_combo_box_signals [PRE_POP_DOWN] = g_signal_new (
"pre_pop_down",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GalComboBoxClass, pre_pop_down),
NULL, NULL,
e_marshal_NONE__NONE,
G_TYPE_NONE, 0);
gal_combo_box_signals [POST_POP_HIDE] = g_signal_new (
"post_pop_hide",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GalComboBoxClass, post_pop_hide),
NULL, NULL,
e_marshal_NONE__NONE,
G_TYPE_NONE, 0);
}
static void
deactivate_arrow (GalComboBox *combo_box)
{
GtkToggleButton *arrow;
arrow = GTK_TOGGLE_BUTTON (combo_box->priv->arrow_button);
g_signal_handlers_block_matched (arrow,
G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_toggle_pressed, combo_box);
gtk_toggle_button_set_active (arrow, FALSE);
g_signal_handlers_unblock_matched (arrow,
G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA,
0, 0, NULL,
gtk_combo_toggle_pressed, combo_box);
}
/**
* gal_combo_box_popup_hide_unconditional
* @combo_box: Combo box
*
* Hide popup, whether or not it is torn off.
*/
static void
gal_combo_box_popup_hide_unconditional (GalComboBox *combo_box)
{
gboolean popup_info_destroyed = FALSE;
g_return_if_fail (combo_box != NULL);
g_return_if_fail (GAL_IS_COMBO_BOX (combo_box));
gtk_widget_hide (combo_box->priv->toplevel);
gtk_widget_hide (combo_box->priv->popup);
if (combo_box->priv->torn_off) {
GTK_TEAROFF_MENU_ITEM (combo_box->priv->tearable)->torn_off
= FALSE;
gtk_combo_set_tearoff_state (combo_box, FALSE);
}
gtk_grab_remove (combo_box->priv->toplevel);
gdk_pointer_ungrab (GDK_CURRENT_TIME);
g_object_ref (combo_box->priv->pop_down_widget);
g_signal_emit (combo_box,
gal_combo_box_signals [POP_DOWN_DONE], 0,
combo_box->priv->pop_down_widget, &popup_info_destroyed);
if (popup_info_destroyed){
gtk_container_remove (
GTK_CONTAINER (combo_box->priv->frame),
combo_box->priv->pop_down_widget);
combo_box->priv->pop_down_widget = NULL;
}
g_object_unref (combo_box->priv->pop_down_widget);
deactivate_arrow (combo_box);
g_signal_emit (combo_box, gal_combo_box_signals [POST_POP_HIDE], 0);
}
/**
* gal_combo_box_popup_hide:
* @combo_box: Combo box
*
* Hide popup, but not when it is torn off.
* This is the external interface - for subclasses and apps which expect a
* regular combo which doesn't do tearoffs.
*/
void
gal_combo_box_popup_hide (GalComboBox *combo_box)
{
if (!combo_box->priv->torn_off)
gal_combo_box_popup_hide_unconditional (combo_box);
else if (GTK_WIDGET_VISIBLE (combo_box->priv->toplevel)) {
/* Both popup and tearoff window present. Get rid of just
the popup shell. */
gtk_combo_popup_tear_off (combo_box, FALSE);
deactivate_arrow (combo_box);
}
}
/*
* Find best location for displaying
*/
void
gal_combo_box_get_pos (GalComboBox *combo_box, int *x, int *y)
{
GtkWidget *wcombo = GTK_WIDGET (combo_box);
int ph, pw;
gdk_window_get_origin (wcombo->window, x, y);
*y += wcombo->allocation.height + wcombo->allocation.y;
*x += wcombo->allocation.x;
ph = combo_box->priv->popup->allocation.height;
pw = combo_box->priv->popup->allocation.width;
if ((*y + ph) > gdk_screen_height ())
*y = gdk_screen_height () - ph;
if ((*x + pw) > gdk_screen_width ())
*x = gdk_screen_width () - pw;
}
static void
gal_combo_box_popup_display (GalComboBox *combo_box)
{
int x, y;
g_return_if_fail (combo_box != NULL);
g_return_if_fail (GAL_IS_COMBO_BOX (combo_box));
/*
* If we have no widget to display on the popdown,
* create it
*/
if (!combo_box->priv->pop_down_widget){
GtkWidget *pw = NULL;
g_signal_emit (combo_box,
gal_combo_box_signals [POP_DOWN_WIDGET], 0, &pw);
g_assert (pw != NULL);
combo_box->priv->pop_down_widget = pw;
gtk_container_add (GTK_CONTAINER (combo_box->priv->frame), pw);
}
g_signal_emit (combo_box, gal_combo_box_signals [PRE_POP_DOWN], 0);
if (combo_box->priv->torn_off) {
/* To give the illusion that tearoff still displays the
* popup, we copy the image in the popup window to the
* background. Thus, it won't be blank after reparenting */
gtk_combo_tearoff_bg_copy (combo_box);
/* We force an unrealize here so that we don't trigger
* redrawing/ clearing code - we just want to reveal our
* backing pixmap.
*/
gtk_combo_popup_reparent (combo_box->priv->popup,
combo_box->priv->toplevel, TRUE);
}
gal_combo_box_get_pos (combo_box, &x, &y);
gtk_widget_set_uposition (combo_box->priv->toplevel, x, y);
gtk_widget_realize (combo_box->priv->popup);
gtk_widget_show (combo_box->priv->popup);
gtk_widget_realize (combo_box->priv->toplevel);
gtk_widget_show (combo_box->priv->toplevel);
gtk_grab_add (combo_box->priv->toplevel);
gdk_pointer_grab (combo_box->priv->toplevel->window, TRUE,
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK,
NULL, NULL, GDK_CURRENT_TIME);
}
static int
gtk_combo_toggle_pressed (GtkToggleButton *tbutton, GalComboBox *combo_box)
{
if (tbutton->active)
gal_combo_box_popup_display (combo_box);
else
gal_combo_box_popup_hide_unconditional (combo_box);
return TRUE;
}
static gint
gal_combo_box_button_press (GtkWidget *widget, GdkEventButton *event, GalComboBox *combo_box)
{
GtkWidget *child;
child = gtk_get_event_widget ((GdkEvent *) event);
if (child != widget){
while (child){
if (child == widget)
return FALSE;
child = child->parent;
}
}
gal_combo_box_popup_hide (combo_box);
return TRUE;
}
/**
* gal_combo_box_key_press
* @widget: Widget
* @event: Event
* @combo_box: Combo box
*
* Key press handler which dismisses popup on escape.
* Popup is dismissed whether or not popup is torn off.
*/
static gint
gal_combo_box_key_press (GtkWidget *widget, GdkEventKey *event,
GalComboBox *combo_box)
{
if (event->keyval == GDK_Escape) {
gal_combo_box_popup_hide_unconditional (combo_box);
return TRUE;
} else
return FALSE;
}
static void
cb_state_change (GtkWidget *widget, GtkStateType old_state, GalComboBox *combo_box)
{
GtkStateType const new_state = GTK_WIDGET_STATE(widget);
gtk_widget_set_state (combo_box->priv->display_widget, new_state);
}
static void
gal_combo_box_init (GalComboBox *combo_box)
{
GtkWidget *arrow;
GdkCursor *cursor;
combo_box->priv = g_new0 (GalComboBoxPrivate, 1);
/*
* Create the arrow
*/
combo_box->priv->arrow_button = gtk_toggle_button_new ();
gtk_button_set_relief (GTK_BUTTON (combo_box->priv->arrow_button), GTK_RELIEF_NONE);
GTK_WIDGET_UNSET_FLAGS (combo_box->priv->arrow_button, GTK_CAN_FOCUS);
arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
gtk_container_add (GTK_CONTAINER (combo_box->priv->arrow_button), arrow);
gtk_box_pack_end (GTK_BOX (combo_box), combo_box->priv->arrow_button, FALSE, FALSE, 0);
g_signal_connect (combo_box->priv->arrow_button, "toggled",
G_CALLBACK (gtk_combo_toggle_pressed), combo_box);
gtk_widget_show_all (combo_box->priv->arrow_button);
/*
* prelight the display widget when mousing over the arrow.
*/
g_signal_connect (combo_box->priv->arrow_button, "state-changed",
G_CALLBACK (cb_state_change), combo_box);
/*
* The pop-down container
*/
combo_box->priv->toplevel = gtk_window_new (GTK_WINDOW_POPUP);
gtk_widget_ref (combo_box->priv->toplevel);
gtk_object_sink (GTK_OBJECT (combo_box->priv->toplevel));
gtk_window_set_policy (GTK_WINDOW (combo_box->priv->toplevel),
FALSE, TRUE, FALSE);
combo_box->priv->popup = gtk_event_box_new ();
gtk_container_add (GTK_CONTAINER (combo_box->priv->toplevel),
combo_box->priv->popup);
gtk_widget_show (combo_box->priv->popup);
gtk_widget_realize (combo_box->priv->popup);
cursor = gdk_cursor_new (GDK_TOP_LEFT_ARROW);
gdk_window_set_cursor (combo_box->priv->popup->window, cursor);
gdk_cursor_destroy (cursor);
combo_box->priv->torn_off = FALSE;
combo_box->priv->tearoff_window = NULL;
combo_box->priv->frame = gtk_frame_new (NULL);
gtk_container_add (GTK_CONTAINER (combo_box->priv->popup),
combo_box->priv->frame);
gtk_frame_set_shadow_type (GTK_FRAME (combo_box->priv->frame), GTK_SHADOW_OUT);
g_signal_connect (combo_box->priv->toplevel, "button_press_event",
G_CALLBACK (gal_combo_box_button_press), combo_box);
g_signal_connect (combo_box->priv->toplevel, "key_press_event",
G_CALLBACK (gal_combo_box_key_press), combo_box);
}
E_MAKE_TYPE (gal_combo_box,
"MyGalComboBox",
GalComboBox,
gal_combo_box_class_init,
gal_combo_box_init,
PARENT_TYPE)
/**
* gal_combo_box_set_display:
* @combo_box: the Combo Box to modify
* @display_widget: The widget to be displayed
* Sets the displayed widget for the @combo_box to be @display_widget
*/
void
gal_combo_box_set_display (GalComboBox *combo_box, GtkWidget *display_widget)
{
g_return_if_fail (combo_box != NULL);
g_return_if_fail (GAL_IS_COMBO_BOX (combo_box));
g_return_if_fail (display_widget != NULL);
g_return_if_fail (GTK_IS_WIDGET (display_widget));
if (combo_box->priv->display_widget &&
combo_box->priv->display_widget != display_widget)
gtk_container_remove (GTK_CONTAINER (combo_box),
combo_box->priv->display_widget);
combo_box->priv->display_widget = display_widget;
gtk_box_pack_start (GTK_BOX (combo_box), display_widget, TRUE, TRUE, 0);
}
static gboolean
cb_tearable_enter_leave (GtkWidget *w, GdkEventCrossing *event, gpointer data)
{
gboolean const flag = GPOINTER_TO_INT(data);
gtk_widget_set_state (w, flag ? GTK_STATE_PRELIGHT : GTK_STATE_NORMAL);
return FALSE;
}
/**
* gtk_combo_popup_tear_off
* @combo: Combo box
* @set_position: Set to position of popup shell if true
*
* Tear off the popup
*
* FIXME:
* Gtk popup menus are toplevel windows, not dialogs. I think this is wrong,
* and make the popups dialogs. But may be there should be a way to make
* them toplevel. We can do this after creating:
* GTK_WINDOW (tearoff)->type = GTK_WINDOW_TOPLEVEL;
*/
static void
gtk_combo_popup_tear_off (GalComboBox *combo, gboolean set_position)
{
int x, y;
if (!combo->priv->tearoff_window) {
GtkWidget *tearoff;
gchar *title;
/* FIXME: made this a toplevel, not a dialog ! */
tearoff = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_widget_ref (tearoff);
gtk_object_sink (GTK_OBJECT (tearoff));
combo->priv->tearoff_window = tearoff;
gtk_widget_set_app_paintable (tearoff, TRUE);
g_signal_connect (tearoff, "key_press_event",
G_CALLBACK (gal_combo_box_key_press),
combo);
gtk_widget_realize (tearoff);
title = g_object_get_data (G_OBJECT (combo),
"gtk-combo-title");
if (title)
gdk_window_set_title (tearoff->window, title);
gtk_window_set_policy (GTK_WINDOW (tearoff),
FALSE, TRUE, FALSE);
gtk_window_set_transient_for
(GTK_WINDOW (tearoff),
GTK_WINDOW (gtk_widget_get_toplevel
GTK_WIDGET (combo)));
}
if (GTK_WIDGET_VISIBLE (combo->priv->popup)) {
gtk_widget_hide (combo->priv->toplevel);
gtk_grab_remove (combo->priv->toplevel);
gdk_pointer_ungrab (GDK_CURRENT_TIME);
}
gtk_combo_popup_reparent (combo->priv->popup,
combo->priv->tearoff_window, FALSE);
/* It may have got confused about size */
gtk_widget_queue_resize (GTK_WIDGET (combo->priv->popup));
if (set_position) {
gal_combo_box_get_pos (combo, &x, &y);
gtk_widget_set_uposition (combo->priv->tearoff_window, x, y);
}
gtk_widget_show (GTK_WIDGET (combo->priv->popup));
gtk_widget_show (combo->priv->tearoff_window);
}
/**
* gtk_combo_set_tearoff_state
* @combo_box: Combo box
* @torn_off: TRUE: Tear off. FALSE: Pop down and reattach
*
* Set the tearoff state of the popup
*
* Compare with gtk_menu_set_tearoff_state in gtk/gtkmenu.c
*/
static void
gtk_combo_set_tearoff_state (GalComboBox *combo,
gboolean torn_off)
{
g_return_if_fail (combo != NULL);
g_return_if_fail (GAL_IS_COMBO_BOX (combo));
if (combo->priv->torn_off != torn_off) {
combo->priv->torn_off = torn_off;
if (combo->priv->torn_off) {
gtk_combo_popup_tear_off (combo, TRUE);
deactivate_arrow (combo);
} else {
gtk_widget_hide (combo->priv->tearoff_window);
gtk_combo_popup_reparent (combo->priv->popup,
combo->priv->toplevel,
FALSE);
}
}
}
/**
* gtk_combo_tearoff_bg_copy
* @combo_box: Combo box
*
* Copy popup window image to the tearoff window.
*/
static void
gtk_combo_tearoff_bg_copy (GalComboBox *combo)
{
GdkPixmap *pixmap;
GdkGC *gc;
GdkGCValues gc_values;
GtkWidget *widget = combo->priv->popup;
if (combo->priv->torn_off) {
gc_values.subwindow_mode = GDK_INCLUDE_INFERIORS;
gc = gdk_gc_new_with_values (widget->window,
&gc_values, GDK_GC_SUBWINDOW);
pixmap = gdk_pixmap_new (widget->window,
widget->allocation.width,
widget->allocation.height,
-1);
gdk_draw_pixmap (pixmap, gc,
widget->window,
0, 0, 0, 0, -1, -1);
gdk_gc_unref (gc);
gtk_widget_set_usize (combo->priv->tearoff_window,
widget->allocation.width,
widget->allocation.height);
gdk_window_set_back_pixmap
(combo->priv->tearoff_window->window, pixmap, FALSE);
gdk_pixmap_unref (pixmap);
}
}
/**
* gtk_combo_popup_reparent
* @popup: Popup
* @new_parent: New parent
* @unrealize: Unrealize popup if TRUE.
*
* Reparent the popup, taking care of the refcounting
*
* Compare with gtk_menu_reparent in gtk/gtkmenu.c
*/
static void
gtk_combo_popup_reparent (GtkWidget *popup,
GtkWidget *new_parent,
gboolean unrealize)
{
GtkObject *object = GTK_OBJECT (popup);
gboolean was_floating = GTK_OBJECT_FLOATING (object);
g_object_ref (object);
gtk_object_sink (object);
if (unrealize) {
g_object_ref (object);
gtk_container_remove (GTK_CONTAINER (popup->parent), popup);
gtk_container_add (GTK_CONTAINER (new_parent), popup);
g_object_unref (object);
}
else
gtk_widget_reparent (GTK_WIDGET (popup), new_parent);
gtk_widget_set_usize (new_parent, -1, -1);
if (was_floating)
GTK_OBJECT_SET_FLAGS (object, GTK_FLOATING);
else
g_object_unref (object);
}
/**
* cb_tearable_button_release
* @w: Widget
* @event: Event
* @combo: Combo box
*
* Toggle tearoff state.
*/
static gboolean
cb_tearable_button_release (GtkWidget *w, GdkEventButton *event,
GalComboBox *combo)
{
GtkTearoffMenuItem *tearable;
g_return_val_if_fail (w != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TEAROFF_MENU_ITEM (w), FALSE);
tearable = GTK_TEAROFF_MENU_ITEM (w);
tearable->torn_off = !tearable->torn_off;
if (!combo->priv->torn_off) {
gboolean need_connect;
need_connect = (!combo->priv->tearoff_window);
gtk_combo_set_tearoff_state (combo, TRUE);
if (need_connect)
g_signal_connect (combo->priv->tearoff_window,
"delete_event",
G_CALLBACK (cb_popup_delete),
combo);
} else
gal_combo_box_popup_hide_unconditional (combo);
return TRUE;
}
static gboolean
cb_popup_delete (GtkWidget *w, GdkEventAny *event, GalComboBox *combo)
{
gal_combo_box_popup_hide_unconditional (combo);
return TRUE;
}
void
gal_combo_box_construct (GalComboBox *combo_box, GtkWidget *display_widget, GtkWidget *pop_down_widget)
{
GtkWidget *tearable;
GtkWidget *vbox;
g_return_if_fail (combo_box != NULL);
g_return_if_fail (GAL_IS_COMBO_BOX (combo_box));
g_return_if_fail (display_widget != NULL);
g_return_if_fail (GTK_IS_WIDGET (display_widget));
GTK_BOX (combo_box)->spacing = 0;
GTK_BOX (combo_box)->homogeneous = FALSE;
combo_box->priv->pop_down_widget = pop_down_widget;
combo_box->priv->display_widget = NULL;
vbox = gtk_vbox_new (FALSE, 5);
tearable = gtk_tearoff_menu_item_new ();
g_signal_connect (tearable, "enter-notify-event",
G_CALLBACK (cb_tearable_enter_leave),
GINT_TO_POINTER (TRUE));
g_signal_connect (tearable, "leave-notify-event",
G_CALLBACK (cb_tearable_enter_leave),
GINT_TO_POINTER (FALSE));
g_signal_connect (tearable, "button-release-event",
G_CALLBACK (cb_tearable_button_release),
(gpointer) combo_box);
gtk_box_pack_start (GTK_BOX (vbox), tearable, FALSE, FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox), pop_down_widget, TRUE, TRUE, 0);
combo_box->priv->tearable = tearable;
/*
* Finish setup
*/
gal_combo_box_set_display (combo_box, display_widget);
gtk_container_add (GTK_CONTAINER (combo_box->priv->frame), vbox);
gtk_widget_show_all (combo_box->priv->frame);
}
GtkWidget *
gal_combo_box_new (GtkWidget *display_widget, GtkWidget *optional_popdown)
{
GalComboBox *combo_box;
g_return_val_if_fail (display_widget != NULL, NULL);
g_return_val_if_fail (GTK_IS_WIDGET (display_widget), NULL);
combo_box = g_object_new (GAL_COMBO_BOX_TYPE, NULL);
gal_combo_box_construct (combo_box, display_widget, optional_popdown);
return GTK_WIDGET (combo_box);
}
void
gal_combo_box_set_arrow_relief (GalComboBox *cc, GtkReliefStyle relief)
{
g_return_if_fail (cc != NULL);
g_return_if_fail (GAL_IS_COMBO_BOX (cc));
gtk_button_set_relief (GTK_BUTTON (cc->priv->arrow_button), relief);
}
/**
* gal_combo_box_set_title
* @combo: Combo box
* @title: Title
*
* Set a title to display over the tearoff window.
*
* FIXME:
*
* This should really change the title even when the popup is already torn off.
* I guess the tearoff window could attach a listener to title change or
* something. But I don't think we need the functionality, so I didn't bother
* to investigate.
*/
void
gal_combo_box_set_title (GalComboBox *combo,
const gchar *title)
{
g_return_if_fail (combo != NULL);
g_return_if_fail (GAL_IS_COMBO_BOX (combo));
g_object_set_data_full (G_OBJECT (combo), "gtk-combo-title",
g_strdup (title), (GDestroyNotify) g_free);
}
/**
* gal_combo_box_set_arrow_sensitive
* @combo: Combo box
* @sensitive: Sensitivity value
*
* Toggle the sensitivity of the arrow button
*/
void
gal_combo_box_set_arrow_sensitive (GalComboBox *combo,
gboolean sensitive)
{
g_return_if_fail (combo != NULL);
gtk_widget_set_sensitive (combo->priv->arrow_button, sensitive);
}
/**
* gal_combo_box_set_tearable:
* @combo: Combo box
* @tearable: whether to allow the @combo to be tearable
*
* controls whether the combo box's pop up widget can be torn off.
*/
void
gal_combo_box_set_tearable (GalComboBox *combo, gboolean tearable)
{
g_return_if_fail (combo != NULL);
g_return_if_fail (GAL_IS_COMBO_BOX (combo));
if (tearable){
gtk_widget_show (combo->priv->tearable);
} else {
gtk_combo_set_tearoff_state (combo, FALSE);
gtk_widget_hide (combo->priv->tearable);
}
}
