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-rw-r--r--widgets/misc/gal-combo-box.c834
1 files changed, 0 insertions, 834 deletions
diff --git a/widgets/misc/gal-combo-box.c b/widgets/misc/gal-combo-box.c
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index 5f407eba9b..0000000000
--- a/widgets/misc/gal-combo-box.c
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@@ -1,834 +0,0 @@
-/* -*- 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_IN);
- 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);
- }
-}