a504e62e01
Tue Feb 26 22:22:37 2002 Owen Taylor <otaylor@redhat.com> * gtk/gtkbox.c (gtk_box_reorder_child): Clean up the code so < 0 == end wasn't just a side effect, remove most of the manual linked list manipulation code in favor of g_list_* functions. Tue Feb 26 22:01:59 2002 Owen Taylor <otaylor@redhat.com> * gtk/tmpl/gtkbox.sgml: Fix docs to correspond to the code - negative @position indicates the end of the list.
700 lines
17 KiB
C
700 lines
17 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "gtkbox.h"
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#include "gtkintl.h"
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enum {
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PROP_0,
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PROP_SPACING,
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PROP_HOMOGENEOUS
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};
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enum {
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CHILD_PROP_0,
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CHILD_PROP_EXPAND,
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CHILD_PROP_FILL,
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CHILD_PROP_PADDING,
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CHILD_PROP_PACK_TYPE,
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CHILD_PROP_POSITION
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};
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static void gtk_box_class_init (GtkBoxClass *klass);
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static void gtk_box_init (GtkBox *box);
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static void gtk_box_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_box_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_box_add (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_box_remove (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_box_forall (GtkContainer *container,
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gboolean include_internals,
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GtkCallback callback,
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gpointer callback_data);
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static void gtk_box_set_child_property (GtkContainer *container,
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GtkWidget *child,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_box_get_child_property (GtkContainer *container,
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GtkWidget *child,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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static GtkType gtk_box_child_type (GtkContainer *container);
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static GtkContainerClass *parent_class = NULL;
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GtkType
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gtk_box_get_type (void)
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{
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static GtkType box_type = 0;
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if (!box_type)
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{
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static const GtkTypeInfo box_info =
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{
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"GtkBox",
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sizeof (GtkBox),
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sizeof (GtkBoxClass),
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(GtkClassInitFunc) gtk_box_class_init,
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(GtkObjectInitFunc) gtk_box_init,
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/* reserved_1 */ NULL,
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/* reserved_2 */ NULL,
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(GtkClassInitFunc) NULL,
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};
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box_type = gtk_type_unique (GTK_TYPE_CONTAINER, &box_info);
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}
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return box_type;
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}
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static void
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gtk_box_class_init (GtkBoxClass *class)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (class);
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GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
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parent_class = g_type_class_peek_parent (class);
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gobject_class->set_property = gtk_box_set_property;
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gobject_class->get_property = gtk_box_get_property;
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container_class->add = gtk_box_add;
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container_class->remove = gtk_box_remove;
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container_class->forall = gtk_box_forall;
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container_class->child_type = gtk_box_child_type;
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container_class->set_child_property = gtk_box_set_child_property;
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container_class->get_child_property = gtk_box_get_child_property;
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g_object_class_install_property (gobject_class,
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PROP_SPACING,
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g_param_spec_int ("spacing",
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_("Spacing"),
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_("The amount of space between children."),
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0,
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G_MAXINT,
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0,
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G_PARAM_READABLE | G_PARAM_WRITABLE));
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g_object_class_install_property (gobject_class,
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PROP_HOMOGENEOUS,
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g_param_spec_boolean ("homogeneous",
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_("Homogeneous"),
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_("Whether the children should all be the same size."),
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FALSE,
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G_PARAM_READABLE | G_PARAM_WRITABLE));
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gtk_container_class_install_child_property (container_class,
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CHILD_PROP_EXPAND,
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g_param_spec_boolean ("expand", NULL, NULL,
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TRUE,
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G_PARAM_READWRITE));
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gtk_container_class_install_child_property (container_class,
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CHILD_PROP_FILL,
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g_param_spec_boolean ("fill", NULL, NULL,
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TRUE,
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G_PARAM_READWRITE));
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gtk_container_class_install_child_property (container_class,
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CHILD_PROP_PADDING,
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g_param_spec_uint ("padding", NULL, NULL,
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0, G_MAXINT, 0,
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G_PARAM_READWRITE));
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gtk_container_class_install_child_property (container_class,
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CHILD_PROP_PACK_TYPE,
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g_param_spec_enum ("pack_type", NULL, NULL,
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GTK_TYPE_PACK_TYPE, GTK_PACK_START,
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G_PARAM_READWRITE));
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gtk_container_class_install_child_property (container_class,
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CHILD_PROP_POSITION,
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g_param_spec_int ("position", NULL, NULL,
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-1, G_MAXINT, 0,
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G_PARAM_READWRITE));
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}
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static void
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gtk_box_init (GtkBox *box)
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{
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GTK_WIDGET_SET_FLAGS (box, GTK_NO_WINDOW);
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gtk_widget_set_redraw_on_allocate (GTK_WIDGET (box), FALSE);
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box->children = NULL;
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box->spacing = 0;
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box->homogeneous = FALSE;
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}
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static void
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gtk_box_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkBox *box;
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box = GTK_BOX (object);
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switch (prop_id)
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{
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case PROP_SPACING:
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gtk_box_set_spacing (box, g_value_get_int (value));
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break;
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case PROP_HOMOGENEOUS:
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gtk_box_set_homogeneous (box, g_value_get_boolean (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void gtk_box_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkBox *box;
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box = GTK_BOX (object);
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switch (prop_id)
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{
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case PROP_SPACING:
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g_value_set_int (value, box->spacing);
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break;
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case PROP_HOMOGENEOUS:
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g_value_set_boolean (value, box->homogeneous);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static GtkType
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gtk_box_child_type (GtkContainer *container)
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{
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return GTK_TYPE_WIDGET;
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}
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static void
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gtk_box_set_child_property (GtkContainer *container,
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GtkWidget *child,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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gboolean expand = 0;
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gboolean fill = 0;
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guint padding = 0;
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GtkPackType pack_type = 0;
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if (property_id != CHILD_PROP_POSITION)
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gtk_box_query_child_packing (GTK_BOX (container),
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child,
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&expand,
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&fill,
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&padding,
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&pack_type);
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switch (property_id)
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{
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case CHILD_PROP_EXPAND:
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gtk_box_set_child_packing (GTK_BOX (container),
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child,
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g_value_get_boolean (value),
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fill,
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padding,
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pack_type);
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break;
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case CHILD_PROP_FILL:
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gtk_box_set_child_packing (GTK_BOX (container),
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child,
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expand,
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g_value_get_boolean (value),
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padding,
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pack_type);
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break;
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case CHILD_PROP_PADDING:
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gtk_box_set_child_packing (GTK_BOX (container),
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child,
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expand,
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fill,
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g_value_get_uint (value),
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pack_type);
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break;
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case CHILD_PROP_PACK_TYPE:
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gtk_box_set_child_packing (GTK_BOX (container),
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child,
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expand,
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fill,
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padding,
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g_value_get_enum (value));
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break;
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case CHILD_PROP_POSITION:
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gtk_box_reorder_child (GTK_BOX (container),
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child,
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g_value_get_int (value));
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break;
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default:
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GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
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break;
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}
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}
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static void
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gtk_box_get_child_property (GtkContainer *container,
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GtkWidget *child,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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gboolean expand = 0;
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gboolean fill = 0;
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guint padding = 0;
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GtkPackType pack_type = 0;
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GList *list;
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if (property_id != CHILD_PROP_POSITION)
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gtk_box_query_child_packing (GTK_BOX (container),
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child,
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&expand,
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&fill,
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&padding,
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&pack_type);
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switch (property_id)
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{
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guint i;
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case CHILD_PROP_EXPAND:
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g_value_set_boolean (value, expand);
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break;
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case CHILD_PROP_FILL:
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g_value_set_boolean (value, fill);
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break;
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case CHILD_PROP_PADDING:
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g_value_set_uint (value, padding);
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break;
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case CHILD_PROP_PACK_TYPE:
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g_value_set_enum (value, pack_type);
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break;
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case CHILD_PROP_POSITION:
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i = 0;
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for (list = GTK_BOX (container)->children; list; list = list->next)
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{
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GtkBoxChild *child_entry;
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child_entry = list->data;
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if (child_entry->widget == child)
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break;
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i++;
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}
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g_value_set_int (value, list ? i : -1);
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break;
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default:
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GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
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break;
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}
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}
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void
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gtk_box_pack_start (GtkBox *box,
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GtkWidget *child,
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gboolean expand,
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gboolean fill,
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guint padding)
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{
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GtkBoxChild *child_info;
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g_return_if_fail (GTK_IS_BOX (box));
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g_return_if_fail (GTK_IS_WIDGET (child));
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g_return_if_fail (child->parent == NULL);
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child_info = g_new (GtkBoxChild, 1);
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child_info->widget = child;
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child_info->padding = padding;
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child_info->expand = expand ? TRUE : FALSE;
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child_info->fill = fill ? TRUE : FALSE;
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child_info->pack = GTK_PACK_START;
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child_info->is_secondary = FALSE;
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box->children = g_list_append (box->children, child_info);
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gtk_widget_freeze_child_notify (child);
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gtk_widget_set_parent (child, GTK_WIDGET (box));
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gtk_widget_child_notify (child, "expand");
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gtk_widget_child_notify (child, "fill");
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gtk_widget_child_notify (child, "padding");
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gtk_widget_child_notify (child, "pack_type");
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gtk_widget_child_notify (child, "position");
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gtk_widget_thaw_child_notify (child);
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}
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void
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gtk_box_pack_end (GtkBox *box,
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GtkWidget *child,
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gboolean expand,
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gboolean fill,
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guint padding)
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{
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GtkBoxChild *child_info;
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g_return_if_fail (GTK_IS_BOX (box));
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g_return_if_fail (GTK_IS_WIDGET (child));
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g_return_if_fail (child->parent == NULL);
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child_info = g_new (GtkBoxChild, 1);
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child_info->widget = child;
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child_info->padding = padding;
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child_info->expand = expand ? TRUE : FALSE;
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child_info->fill = fill ? TRUE : FALSE;
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child_info->pack = GTK_PACK_END;
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child_info->is_secondary = FALSE;
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box->children = g_list_append (box->children, child_info);
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gtk_widget_freeze_child_notify (child);
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gtk_widget_set_parent (child, GTK_WIDGET (box));
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gtk_widget_child_notify (child, "expand");
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gtk_widget_child_notify (child, "fill");
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gtk_widget_child_notify (child, "padding");
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gtk_widget_child_notify (child, "pack_type");
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gtk_widget_child_notify (child, "position");
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gtk_widget_thaw_child_notify (child);
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}
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void
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gtk_box_pack_start_defaults (GtkBox *box,
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GtkWidget *child)
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{
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gtk_box_pack_start (box, child, TRUE, TRUE, 0);
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}
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void
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gtk_box_pack_end_defaults (GtkBox *box,
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GtkWidget *child)
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{
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gtk_box_pack_end (box, child, TRUE, TRUE, 0);
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}
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void
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gtk_box_set_homogeneous (GtkBox *box,
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gboolean homogeneous)
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{
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g_return_if_fail (GTK_IS_BOX (box));
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if ((homogeneous ? TRUE : FALSE) != box->homogeneous)
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{
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box->homogeneous = homogeneous ? TRUE : FALSE;
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g_object_notify (G_OBJECT (box), "homogeneous");
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gtk_widget_queue_resize (GTK_WIDGET (box));
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}
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}
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/**
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* gtk_box_get_homogeneous:
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* @box: a #GtkBox
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*
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* Returns whether the box is homogeneous (all children are the
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* same size). See gtk_box_set_homogeneous ().
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*
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* Return value: %TRUE if the box is homogeneous.
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**/
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gboolean
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gtk_box_get_homogeneous (GtkBox *box)
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{
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g_return_val_if_fail (GTK_IS_BOX (box), FALSE);
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return box->homogeneous;
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}
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void
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gtk_box_set_spacing (GtkBox *box,
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gint spacing)
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{
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g_return_if_fail (GTK_IS_BOX (box));
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if (spacing != box->spacing)
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{
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box->spacing = spacing;
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g_object_notify (G_OBJECT (box), "spacing");
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gtk_widget_queue_resize (GTK_WIDGET (box));
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}
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}
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/**
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* gtk_box_get_spacing:
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* @box: a #GtkBox
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*
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* Gets the value set by gtk_box_set_spacing().
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*
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* Return value: spacing between children
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**/
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gint
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gtk_box_get_spacing (GtkBox *box)
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{
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g_return_val_if_fail (GTK_IS_BOX (box), 0);
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return box->spacing;
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}
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void
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gtk_box_reorder_child (GtkBox *box,
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GtkWidget *child,
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gint position)
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{
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GList *old_link;
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GList *new_link;
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GtkBoxChild *child_info = NULL;
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gint old_position;
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g_return_if_fail (GTK_IS_BOX (box));
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g_return_if_fail (GTK_IS_WIDGET (child));
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old_link = box->children;
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old_position = 0;
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while (old_link)
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{
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child_info = old_link->data;
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if (child_info->widget == child)
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break;
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old_link = old_link->next;
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old_position++;
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}
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g_return_if_fail (old_link != NULL);
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if (position == old_position)
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return;
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box->children = g_list_delete_link (box->children, old_link);
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if (position < 0)
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new_link = NULL;
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else
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new_link = g_list_nth (box->children, position);
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box->children = g_list_insert_before (box->children, new_link, child_info);
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gtk_widget_child_notify (child, "position");
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if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box))
|
|
gtk_widget_queue_resize (child);
|
|
}
|
|
|
|
void
|
|
gtk_box_query_child_packing (GtkBox *box,
|
|
GtkWidget *child,
|
|
gboolean *expand,
|
|
gboolean *fill,
|
|
guint *padding,
|
|
GtkPackType *pack_type)
|
|
{
|
|
GList *list;
|
|
GtkBoxChild *child_info = NULL;
|
|
|
|
g_return_if_fail (GTK_IS_BOX (box));
|
|
g_return_if_fail (GTK_IS_WIDGET (child));
|
|
|
|
list = box->children;
|
|
while (list)
|
|
{
|
|
child_info = list->data;
|
|
if (child_info->widget == child)
|
|
break;
|
|
|
|
list = list->next;
|
|
}
|
|
|
|
if (list)
|
|
{
|
|
if (expand)
|
|
*expand = child_info->expand;
|
|
if (fill)
|
|
*fill = child_info->fill;
|
|
if (padding)
|
|
*padding = child_info->padding;
|
|
if (pack_type)
|
|
*pack_type = child_info->pack;
|
|
}
|
|
}
|
|
|
|
void
|
|
gtk_box_set_child_packing (GtkBox *box,
|
|
GtkWidget *child,
|
|
gboolean expand,
|
|
gboolean fill,
|
|
guint padding,
|
|
GtkPackType pack_type)
|
|
{
|
|
GList *list;
|
|
GtkBoxChild *child_info = NULL;
|
|
|
|
g_return_if_fail (GTK_IS_BOX (box));
|
|
g_return_if_fail (GTK_IS_WIDGET (child));
|
|
|
|
list = box->children;
|
|
while (list)
|
|
{
|
|
child_info = list->data;
|
|
if (child_info->widget == child)
|
|
break;
|
|
|
|
list = list->next;
|
|
}
|
|
|
|
gtk_widget_freeze_child_notify (child);
|
|
if (list)
|
|
{
|
|
child_info->expand = expand != FALSE;
|
|
gtk_widget_child_notify (child, "expand");
|
|
child_info->fill = fill != FALSE;
|
|
gtk_widget_child_notify (child, "fill");
|
|
child_info->padding = padding;
|
|
gtk_widget_child_notify (child, "padding");
|
|
if (pack_type == GTK_PACK_END)
|
|
child_info->pack = GTK_PACK_END;
|
|
else
|
|
child_info->pack = GTK_PACK_START;
|
|
gtk_widget_child_notify (child, "pack_type");
|
|
|
|
if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (box))
|
|
gtk_widget_queue_resize (child);
|
|
}
|
|
gtk_widget_thaw_child_notify (child);
|
|
}
|
|
|
|
static void
|
|
gtk_box_add (GtkContainer *container,
|
|
GtkWidget *widget)
|
|
{
|
|
gtk_box_pack_start_defaults (GTK_BOX (container), widget);
|
|
}
|
|
|
|
static void
|
|
gtk_box_remove (GtkContainer *container,
|
|
GtkWidget *widget)
|
|
{
|
|
GtkBox *box;
|
|
GtkBoxChild *child;
|
|
GList *children;
|
|
|
|
box = GTK_BOX (container);
|
|
|
|
children = box->children;
|
|
while (children)
|
|
{
|
|
child = children->data;
|
|
|
|
if (child->widget == widget)
|
|
{
|
|
gboolean was_visible;
|
|
|
|
was_visible = GTK_WIDGET_VISIBLE (widget);
|
|
gtk_widget_unparent (widget);
|
|
|
|
box->children = g_list_remove_link (box->children, children);
|
|
g_list_free (children);
|
|
g_free (child);
|
|
|
|
/* queue resize regardless of GTK_WIDGET_VISIBLE (container),
|
|
* since that's what is needed by toplevels.
|
|
*/
|
|
if (was_visible)
|
|
gtk_widget_queue_resize (GTK_WIDGET (container));
|
|
|
|
break;
|
|
}
|
|
|
|
children = children->next;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_box_forall (GtkContainer *container,
|
|
gboolean include_internals,
|
|
GtkCallback callback,
|
|
gpointer callback_data)
|
|
{
|
|
GtkBox *box;
|
|
GtkBoxChild *child;
|
|
GList *children;
|
|
|
|
g_return_if_fail (callback != NULL);
|
|
|
|
box = GTK_BOX (container);
|
|
|
|
children = box->children;
|
|
while (children)
|
|
{
|
|
child = children->data;
|
|
children = children->next;
|
|
|
|
if (child->pack == GTK_PACK_START)
|
|
(* callback) (child->widget, callback_data);
|
|
}
|
|
|
|
children = g_list_last (box->children);
|
|
while (children)
|
|
{
|
|
child = children->data;
|
|
children = children->prev;
|
|
|
|
if (child->pack == GTK_PACK_END)
|
|
(* callback) (child->widget, callback_data);
|
|
}
|
|
}
|