forked from AuroraMiddleware/gtk
205 lines
6.2 KiB
C
205 lines
6.2 KiB
C
/* GTK - The GIMP Toolkit
|
|
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser 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.
|
|
*/
|
|
|
|
/*
|
|
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
|
|
* file for a list of people on the GTK+ Team. See the ChangeLog
|
|
* files for a list of changes. These files are distributed with
|
|
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include "gtkbin.h"
|
|
#include "gtkextendedlayout.h"
|
|
#include "gtkintl.h"
|
|
#include "gtkalias.h"
|
|
|
|
static void gtk_bin_add (GtkContainer *container,
|
|
GtkWidget *widget);
|
|
static void gtk_bin_remove (GtkContainer *container,
|
|
GtkWidget *widget);
|
|
static void gtk_bin_forall (GtkContainer *container,
|
|
gboolean include_internals,
|
|
GtkCallback callback,
|
|
gpointer callback_data);
|
|
static GType gtk_bin_child_type (GtkContainer *container);
|
|
|
|
static void gtk_bin_extended_layout_interface_init (GtkExtendedLayoutIface *iface);
|
|
|
|
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GtkBin, gtk_bin, GTK_TYPE_CONTAINER,
|
|
G_IMPLEMENT_INTERFACE (GTK_TYPE_EXTENDED_LAYOUT,
|
|
gtk_bin_extended_layout_interface_init))
|
|
|
|
|
|
static void
|
|
gtk_bin_class_init (GtkBinClass *class)
|
|
{
|
|
GtkContainerClass *container_class;
|
|
|
|
container_class = (GtkContainerClass*) class;
|
|
|
|
container_class->add = gtk_bin_add;
|
|
container_class->remove = gtk_bin_remove;
|
|
container_class->forall = gtk_bin_forall;
|
|
container_class->child_type = gtk_bin_child_type;
|
|
}
|
|
|
|
static void
|
|
gtk_bin_init (GtkBin *bin)
|
|
{
|
|
GTK_WIDGET_SET_FLAGS (bin, GTK_NO_WINDOW);
|
|
|
|
bin->child = NULL;
|
|
}
|
|
|
|
|
|
static GType
|
|
gtk_bin_child_type (GtkContainer *container)
|
|
{
|
|
if (!GTK_BIN (container)->child)
|
|
return GTK_TYPE_WIDGET;
|
|
else
|
|
return G_TYPE_NONE;
|
|
}
|
|
|
|
static void
|
|
gtk_bin_add (GtkContainer *container,
|
|
GtkWidget *child)
|
|
{
|
|
GtkBin *bin = GTK_BIN (container);
|
|
|
|
if (bin->child != NULL)
|
|
{
|
|
g_warning ("Attempting to add a widget with type %s to a %s, "
|
|
"but as a GtkBin subclass a %s can only contain one widget at a time; "
|
|
"it already contains a widget of type %s",
|
|
g_type_name (G_OBJECT_TYPE (child)),
|
|
g_type_name (G_OBJECT_TYPE (bin)),
|
|
g_type_name (G_OBJECT_TYPE (bin)),
|
|
g_type_name (G_OBJECT_TYPE (bin->child)));
|
|
return;
|
|
}
|
|
|
|
gtk_widget_set_parent (child, GTK_WIDGET (bin));
|
|
bin->child = child;
|
|
}
|
|
|
|
static void
|
|
gtk_bin_remove (GtkContainer *container,
|
|
GtkWidget *child)
|
|
{
|
|
GtkBin *bin = GTK_BIN (container);
|
|
gboolean widget_was_visible;
|
|
|
|
g_return_if_fail (bin->child == child);
|
|
|
|
widget_was_visible = gtk_widget_get_visible (child);
|
|
|
|
gtk_widget_unparent (child);
|
|
bin->child = NULL;
|
|
|
|
/* queue resize regardless of gtk_widget_get_visible (container),
|
|
* since that's what is needed by toplevels, which derive from GtkBin.
|
|
*/
|
|
if (widget_was_visible)
|
|
gtk_widget_queue_resize (GTK_WIDGET (container));
|
|
}
|
|
|
|
static void
|
|
gtk_bin_forall (GtkContainer *container,
|
|
gboolean include_internals,
|
|
GtkCallback callback,
|
|
gpointer callback_data)
|
|
{
|
|
GtkBin *bin = GTK_BIN (container);
|
|
|
|
if (bin->child)
|
|
(* callback) (bin->child, callback_data);
|
|
}
|
|
|
|
/**
|
|
* gtk_bin_get_child:
|
|
* @bin: a #GtkBin
|
|
*
|
|
* Gets the child of the #GtkBin, or %NULL if the bin contains
|
|
* no child widget. The returned widget does not have a reference
|
|
* added, so you do not need to unref it.
|
|
*
|
|
* Return value: (transfer none): pointer to child of the #GtkBin
|
|
**/
|
|
GtkWidget*
|
|
gtk_bin_get_child (GtkBin *bin)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_BIN (bin), NULL);
|
|
|
|
return bin->child;
|
|
}
|
|
|
|
static void
|
|
gtk_bin_extended_layout_get_desired_size (GtkExtendedLayout *layout,
|
|
GtkRequisition *minimum_size,
|
|
GtkRequisition *natural_size)
|
|
{
|
|
GtkBin *bin = GTK_BIN (layout);
|
|
|
|
g_return_if_fail (GTK_IS_EXTENDED_LAYOUT (bin->child));
|
|
|
|
gtk_extended_layout_get_desired_size (GTK_EXTENDED_LAYOUT (bin->child),
|
|
minimum_size, natural_size);
|
|
}
|
|
|
|
static void
|
|
gtk_bin_extended_layout_get_width_for_height (GtkExtendedLayout *layout,
|
|
gint height,
|
|
gint *minimum_width,
|
|
gint *natural_width)
|
|
{
|
|
GtkBin *bin = GTK_BIN (layout);
|
|
|
|
g_return_if_fail (GTK_IS_EXTENDED_LAYOUT (bin->child));
|
|
|
|
gtk_extended_layout_get_width_for_height (GTK_EXTENDED_LAYOUT (bin->child),
|
|
height, minimum_width, natural_width);
|
|
}
|
|
|
|
static void
|
|
gtk_bin_extended_layout_get_height_for_width (GtkExtendedLayout *layout,
|
|
gint width,
|
|
gint *minimum_height,
|
|
gint *natural_height)
|
|
{
|
|
GtkBin *bin = GTK_BIN (layout);
|
|
|
|
g_return_if_fail (GTK_IS_EXTENDED_LAYOUT (bin->child));
|
|
|
|
gtk_extended_layout_get_height_for_width (GTK_EXTENDED_LAYOUT (bin->child),
|
|
width, minimum_height, natural_height);
|
|
}
|
|
|
|
static void
|
|
gtk_bin_extended_layout_interface_init (GtkExtendedLayoutIface *iface)
|
|
{
|
|
iface->get_desired_size = gtk_bin_extended_layout_get_desired_size;
|
|
iface->get_height_for_width = gtk_bin_extended_layout_get_height_for_width;
|
|
iface->get_width_for_height = gtk_bin_extended_layout_get_width_for_height;
|
|
}
|
|
|
|
#define __GTK_BIN_C__
|
|
#include "gtkaliasdef.c"
|