Fixes https://bugzilla.gnome.org/show_bug.cgi?id=629598 Signed-off-by: Javier Jardón <jjardon@gnome.org> Signed-off-by: Tristan Van Berkom <tristanvb@openismus.com>
		
			
				
	
	
		
			894 lines
		
	
	
		
			29 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			894 lines
		
	
	
		
			29 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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/**
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 * SECTION:gtkbbox
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 * @Short_description: Base class for GtkHButtonBox and GtkVButtonBox
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 * @Title: GtkButtonBox
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 * @See_also: #GtkVButtonBox, #GtkHButtonBox
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 *
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 * The primary purpose of this class is to keep track of the various
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 * properties of #GtkHButtonBox and #GtkVButtonBox widgets.
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 *
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 * gtk_button_box_get_layout() and gtk_button_box_set_layout() retrieve and
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 * alter the method used to spread the buttons in a button box across the
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 * container, respectively.
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 *
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 * The main purpose of GtkButtonBox is to make sure the children have all the
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 * same size. GtkButtonBox gives all children the same size, but it does allow
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 * 'outliers' to keep their own larger size. To force all children to be
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 * strictly the same size without exceptions, you can set the
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 * #GtkButtonBox::homogeneous property to %TRUE.
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 */
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#include "config.h"
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#include "gtkbbox.h"
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#include "gtkorientable.h"
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#include "gtkprivate.h"
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#include "gtksizerequest.h"
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#include "gtkintl.h"
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struct _GtkButtonBoxPrivate
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{
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  GtkButtonBoxStyle layout_style;
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};
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enum {
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  PROP_0,
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  PROP_LAYOUT_STYLE
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};
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enum {
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  CHILD_PROP_0,
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  CHILD_PROP_SECONDARY
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};
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#define GTK_BOX_SECONDARY_CHILD "gtk-box-secondary-child"
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static void gtk_button_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_button_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_button_box_size_request       (GtkWidget         *widget,
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                                               GtkRequisition    *requisition);
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static void gtk_button_box_size_allocate      (GtkWidget         *widget,
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                                               GtkAllocation     *allocation);
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static void gtk_button_box_remove             (GtkContainer      *container,
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                                               GtkWidget         *widget);
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static void gtk_button_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_button_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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#define DEFAULT_CHILD_MIN_WIDTH 85
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#define DEFAULT_CHILD_MIN_HEIGHT 27
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#define DEFAULT_CHILD_IPAD_X 4
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#define DEFAULT_CHILD_IPAD_Y 0
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#define DEFAULT_LAYOUT_STYLE GTK_BUTTONBOX_EDGE
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G_DEFINE_TYPE (GtkButtonBox, gtk_button_box, GTK_TYPE_BOX)
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static void
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gtk_button_box_class_init (GtkButtonBoxClass *class)
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{
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  GtkWidgetClass *widget_class;
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  GObjectClass *gobject_class;
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  GtkContainerClass *container_class;
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  gobject_class = G_OBJECT_CLASS (class);
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  widget_class = (GtkWidgetClass*) class;
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  container_class = (GtkContainerClass*) class;
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  gobject_class->set_property = gtk_button_box_set_property;
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  gobject_class->get_property = gtk_button_box_get_property;
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  widget_class->size_request = gtk_button_box_size_request;
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  widget_class->size_allocate = gtk_button_box_size_allocate;
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  container_class->remove = gtk_button_box_remove;
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  container_class->set_child_property = gtk_button_box_set_child_property;
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  container_class->get_child_property = gtk_button_box_get_child_property;
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  /* FIXME we need to override the "spacing" property on GtkBox once
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   * libgobject allows that.
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   */
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  gtk_widget_class_install_style_property (widget_class,
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                                           g_param_spec_int ("child-min-width",
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                                                             P_("Minimum child width"),
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                                                             P_("Minimum width of buttons inside the box"),
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                                                             0,
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                                                             G_MAXINT,
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                                                             DEFAULT_CHILD_MIN_WIDTH,
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                                                             GTK_PARAM_READABLE));
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  gtk_widget_class_install_style_property (widget_class,
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                                           g_param_spec_int ("child-min-height",
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                                                             P_("Minimum child height"),
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                                                             P_("Minimum height of buttons inside the box"),
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                                                             0,
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                                                             G_MAXINT,
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                                                             DEFAULT_CHILD_MIN_HEIGHT,
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                                                             GTK_PARAM_READABLE));
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  gtk_widget_class_install_style_property (widget_class,
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                                           g_param_spec_int ("child-internal-pad-x",
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                                                             P_("Child internal width padding"),
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                                                             P_("Amount to increase child's size on either side"),
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                                                             0,
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                                                             G_MAXINT,
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                                                             DEFAULT_CHILD_IPAD_X,
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                                                             GTK_PARAM_READABLE));
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  gtk_widget_class_install_style_property (widget_class,
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                                           g_param_spec_int ("child-internal-pad-y",
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                                                             P_("Child internal height padding"),
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                                                             P_("Amount to increase child's size on the top and bottom"),
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                                                             0,
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                                                             G_MAXINT,
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                                                             DEFAULT_CHILD_IPAD_Y,
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                                                             GTK_PARAM_READABLE));
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  g_object_class_install_property (gobject_class,
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                                   PROP_LAYOUT_STYLE,
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                                   g_param_spec_enum ("layout-style",
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                                                      P_("Layout style"),
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                                                      P_("How to lay out the buttons in the box. Possible values are: spread, edge, start and end"),
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                                                      GTK_TYPE_BUTTON_BOX_STYLE,
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                                                      DEFAULT_LAYOUT_STYLE,
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                                                      GTK_PARAM_READWRITE));
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  gtk_container_class_install_child_property (container_class,
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                                              CHILD_PROP_SECONDARY,
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                                              g_param_spec_boolean ("secondary", 
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                                                                    P_("Secondary"),
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                                                                    P_("If TRUE, the child appears in a secondary group of children, suitable for, e.g., help buttons"),
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                                                                    FALSE,
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                                                                    GTK_PARAM_READWRITE));
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  g_type_class_add_private (class, sizeof (GtkButtonBoxPrivate));
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}
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static void
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gtk_button_box_init (GtkButtonBox *button_box)
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{
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  GtkButtonBoxPrivate *priv;
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  button_box->priv = G_TYPE_INSTANCE_GET_PRIVATE (button_box,
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                                                  GTK_TYPE_BUTTON_BOX,
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                                                  GtkButtonBoxPrivate);
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  priv = button_box->priv;
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  gtk_box_set_spacing (GTK_BOX (button_box), 0);
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  priv->layout_style = DEFAULT_LAYOUT_STYLE;
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}
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static void
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gtk_button_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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  switch (prop_id)
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    {
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    case PROP_LAYOUT_STYLE:
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      gtk_button_box_set_layout (GTK_BUTTON_BOX (object),
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                                 g_value_get_enum (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
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gtk_button_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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  GtkButtonBoxPrivate *priv = GTK_BUTTON_BOX (object)->priv;
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  switch (prop_id)
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    {
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    case PROP_LAYOUT_STYLE:
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      g_value_set_enum (value, priv->layout_style);
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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
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gtk_button_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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  switch (property_id)
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    {
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    case CHILD_PROP_SECONDARY:
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      gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (container), child,
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                                          g_value_get_boolean (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_button_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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  switch (property_id)
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    {
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    case CHILD_PROP_SECONDARY:
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      g_value_set_boolean (value,
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                           gtk_button_box_get_child_secondary (GTK_BUTTON_BOX (container),
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                                                               child));
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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_button_box_remove (GtkContainer *container,
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                       GtkWidget    *widget)
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{
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  /* clear is_secondary flag in case the widget
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   * is added to another container
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   */
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  gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (container),
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                                      widget,
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                                      FALSE);
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  GTK_CONTAINER_CLASS (gtk_button_box_parent_class)->remove (container, widget);
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}
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/**
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 * gtk_button_box_set_layout:
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 * @widget: a #GtkButtonBox
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 * @layout_style: the new layout style
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 *
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 * Changes the way buttons are arranged in their container.
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 */
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void
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gtk_button_box_set_layout (GtkButtonBox      *widget,
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                           GtkButtonBoxStyle  layout_style)
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{
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  GtkButtonBoxPrivate *priv;
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  g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
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  priv = widget->priv;
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  if (priv->layout_style != layout_style)
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    {
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      priv->layout_style = layout_style;
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      g_object_notify (G_OBJECT (widget), "layout-style");
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      gtk_widget_queue_resize (GTK_WIDGET (widget));
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    }
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}
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/**
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 * gtk_button_box_get_layout:
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 * @widget: a #GtkButtonBox
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 *
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 * Retrieves the method being used to arrange the buttons in a button box.
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 *
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 * Returns: the method used to lay out buttons in @widget.
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 */
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GtkButtonBoxStyle
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gtk_button_box_get_layout (GtkButtonBox *widget)
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{
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  g_return_val_if_fail (GTK_IS_BUTTON_BOX (widget), DEFAULT_LAYOUT_STYLE);
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  return widget->priv->layout_style;
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}
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/**
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 * gtk_button_box_get_child_secondary:
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 * @widget: a #GtkButtonBox
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 * @child: a child of @widget
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 *
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 * Returns whether @child should appear in a secondary group of children.
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 *
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 * Return value: whether @child should appear in a secondary group of children.
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 *
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 * Since: 2.4
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 **/
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gboolean
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gtk_button_box_get_child_secondary (GtkButtonBox *widget,
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                                    GtkWidget    *child)
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{
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  g_return_val_if_fail (GTK_IS_BUTTON_BOX (widget), FALSE);
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  g_return_val_if_fail (GTK_IS_WIDGET (child), FALSE);
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  return (g_object_get_data (G_OBJECT (child), GTK_BOX_SECONDARY_CHILD) != NULL);
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}
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/**
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 * gtk_button_box_set_child_secondary
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 * @widget: a #GtkButtonBox
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 * @child: a child of @widget
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 * @is_secondary: if %TRUE, the @child appears in a secondary group of the
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 *                button box.
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 *
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 * Sets whether @child should appear in a secondary group of children.
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 * A typical use of a secondary child is the help button in a dialog.
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 *
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 * This group appears after the other children if the style
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 * is %GTK_BUTTONBOX_START, %GTK_BUTTONBOX_SPREAD or
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 * %GTK_BUTTONBOX_EDGE, and before the other children if the style
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 * is %GTK_BUTTONBOX_END. For horizontal button boxes, the definition
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 * of before/after depends on direction of the widget (see
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 * gtk_widget_set_direction()). If the style is %GTK_BUTTONBOX_START
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 * or %GTK_BUTTONBOX_END, then the secondary children are aligned at
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						|
 * the other end of the button box from the main children. For the
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 * other styles, they appear immediately next to the main children.
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 **/
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void
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gtk_button_box_set_child_secondary (GtkButtonBox *widget,
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                                    GtkWidget    *child,
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                                    gboolean      is_secondary)
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{
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  g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
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  g_return_if_fail (GTK_IS_WIDGET (child));
 | 
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  g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (widget));
 | 
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  g_object_set_data (G_OBJECT (child),
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                     GTK_BOX_SECONDARY_CHILD,
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                     is_secondary ? GINT_TO_POINTER (1) : NULL);
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  gtk_widget_child_notify (child, "secondary");
 | 
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 | 
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  if (gtk_widget_get_visible (GTK_WIDGET (widget)) &&
 | 
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      gtk_widget_get_visible (child))
 | 
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    gtk_widget_queue_resize (child);
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}
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 | 
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/* Ask children how much space they require and round up
 | 
						|
 * to match minimum size and internal padding.
 | 
						|
 * Returns the size each single child should have.
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						|
 */
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static void
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gtk_button_box_child_requisition (GtkWidget  *widget,
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                                  gint       *nvis_children,
 | 
						|
                                  gint       *nvis_secondaries,
 | 
						|
                                  gint      **widths,
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						|
                                  gint      **heights)
 | 
						|
{
 | 
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  GtkButtonBoxPrivate *priv;
 | 
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  GtkButtonBox *bbox;
 | 
						|
  GList *children, *list;
 | 
						|
  gint nchildren;
 | 
						|
  gint nsecondaries;
 | 
						|
  gint needed_width;
 | 
						|
  gint needed_height;
 | 
						|
  gint avg_w, avg_h;
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						|
  GtkRequisition child_requisition;
 | 
						|
  gint ipad_w;
 | 
						|
  gint ipad_h;
 | 
						|
  gint child_min_width;
 | 
						|
  gint child_min_height;
 | 
						|
  gint ipad_x;
 | 
						|
  gint ipad_y;
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						|
  gboolean homogeneous;
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						|
  gint i;
 | 
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						|
  g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
 | 
						|
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  bbox = GTK_BUTTON_BOX (widget);
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  priv = bbox->priv;
 | 
						|
 | 
						|
  homogeneous = gtk_box_get_homogeneous (GTK_BOX (widget));
 | 
						|
 | 
						|
  gtk_widget_style_get (widget,
 | 
						|
                        "child-min-width", &child_min_width,
 | 
						|
                        "child-min-height", &child_min_height,
 | 
						|
                        "child-internal-pad-x", &ipad_x,
 | 
						|
                        "child-internal-pad-y", &ipad_y,
 | 
						|
                        NULL);
 | 
						|
 | 
						|
  nchildren = 0;
 | 
						|
  nsecondaries = 0;
 | 
						|
  list = children = _gtk_box_get_children (GTK_BOX (bbox));
 | 
						|
  needed_width = child_min_width;
 | 
						|
  needed_height = child_min_height;
 | 
						|
  ipad_w = ipad_x * 2;
 | 
						|
  ipad_h = ipad_y * 2;
 | 
						|
 | 
						|
  avg_w = avg_h = 0;
 | 
						|
  while (children)
 | 
						|
    {
 | 
						|
      GtkWidget *child;
 | 
						|
 | 
						|
      child = children->data;
 | 
						|
      children = children->next;
 | 
						|
 | 
						|
      if (gtk_widget_get_visible (child))
 | 
						|
        {
 | 
						|
          nchildren += 1;
 | 
						|
          gtk_size_request_get_size (GTK_SIZE_REQUEST (child),
 | 
						|
                                     &child_requisition, NULL);
 | 
						|
          avg_w += child_requisition.width + ipad_w;
 | 
						|
          avg_h += child_requisition.height + ipad_h;
 | 
						|
        }
 | 
						|
    }
 | 
						|
  avg_w /= MAX (nchildren, 1);
 | 
						|
  avg_h /= MAX (nchildren, 1);
 | 
						|
 | 
						|
  *widths = g_new (gint, nchildren);
 | 
						|
  *heights = g_new (gint, nchildren);
 | 
						|
 | 
						|
  i = 0;
 | 
						|
  children = list;
 | 
						|
  while (children)
 | 
						|
    {
 | 
						|
      GtkWidget *child;
 | 
						|
      gboolean is_secondary;
 | 
						|
 | 
						|
      child = children->data;
 | 
						|
      children = children->next;
 | 
						|
 | 
						|
      if (gtk_widget_get_visible (child))
 | 
						|
        {
 | 
						|
          is_secondary = gtk_button_box_get_child_secondary (bbox, child);
 | 
						|
          if (is_secondary)
 | 
						|
            nsecondaries++;
 | 
						|
 | 
						|
          gtk_size_request_get_size (GTK_SIZE_REQUEST (child),
 | 
						|
                                     &child_requisition, NULL);
 | 
						|
 | 
						|
          if (homogeneous || (child_requisition.width + ipad_w < avg_w * 1.5))
 | 
						|
            {
 | 
						|
              (*widths)[i] = -1;
 | 
						|
              if (child_requisition.width + ipad_w > needed_width)
 | 
						|
                needed_width = child_requisition.width + ipad_w;
 | 
						|
            }
 | 
						|
          else
 | 
						|
            {
 | 
						|
              (*widths)[i] = child_requisition.width + ipad_w;
 | 
						|
            }
 | 
						|
 | 
						|
          if (homogeneous || (child_requisition.height + ipad_h < avg_h * 1.5))
 | 
						|
            {
 | 
						|
              (*heights)[i] = -1;
 | 
						|
              if (child_requisition.height + ipad_h > needed_height)
 | 
						|
                needed_height = child_requisition.height + ipad_h;
 | 
						|
            }
 | 
						|
          else
 | 
						|
            {
 | 
						|
              (*heights)[i] = child_requisition.height + ipad_h;
 | 
						|
            }
 | 
						|
 | 
						|
          i++;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
  g_list_free (list);
 | 
						|
 | 
						|
  for (i = 0; i < nchildren; i++)
 | 
						|
    {
 | 
						|
      if ((*widths)[i] == -1)
 | 
						|
        (*widths)[i] = needed_width;
 | 
						|
      if ((*heights)[i] == -1)
 | 
						|
        (*heights)[i] = needed_height;
 | 
						|
    }
 | 
						|
 | 
						|
  if (nvis_children)
 | 
						|
    *nvis_children = nchildren;
 | 
						|
 | 
						|
  if (nvis_secondaries)
 | 
						|
    *nvis_secondaries = nsecondaries;
 | 
						|
}
 | 
						|
 | 
						|
static void
 | 
						|
gtk_button_box_size_request (GtkWidget      *widget,
 | 
						|
                             GtkRequisition *requisition)
 | 
						|
{
 | 
						|
  GtkButtonBoxPrivate *priv;
 | 
						|
  GtkButtonBox *bbox;
 | 
						|
  gint nvis_children;
 | 
						|
  gint max_size;
 | 
						|
  gint total_size;
 | 
						|
  gint spacing;
 | 
						|
  guint border_width;
 | 
						|
  GtkOrientation orientation;
 | 
						|
  gint *widths;
 | 
						|
  gint *heights;
 | 
						|
  gint i;
 | 
						|
 | 
						|
  bbox = GTK_BUTTON_BOX (widget);
 | 
						|
  priv = bbox->priv;
 | 
						|
 | 
						|
  orientation = gtk_orientable_get_orientation (GTK_ORIENTABLE (widget));
 | 
						|
  spacing = gtk_box_get_spacing (GTK_BOX (widget));
 | 
						|
 | 
						|
  gtk_button_box_child_requisition (widget,
 | 
						|
                                    &nvis_children,
 | 
						|
                                    NULL,
 | 
						|
                                    &widths, &heights);
 | 
						|
 | 
						|
  max_size = 0;
 | 
						|
  total_size = 0;
 | 
						|
  for (i = 0; i < nvis_children; i++)
 | 
						|
    {
 | 
						|
      if (orientation == GTK_ORIENTATION_HORIZONTAL)
 | 
						|
        {
 | 
						|
          total_size += widths[i];
 | 
						|
          max_size = MAX (max_size, heights[i]);
 | 
						|
        }
 | 
						|
      else
 | 
						|
        {
 | 
						|
          total_size += heights[i];
 | 
						|
          max_size = MAX (max_size, widths[i]);
 | 
						|
        }
 | 
						|
    }
 | 
						|
  g_free (widths);
 | 
						|
  g_free (heights);
 | 
						|
 | 
						|
  if (nvis_children == 0)
 | 
						|
    {
 | 
						|
      requisition->width = 0;
 | 
						|
      requisition->height = 0;
 | 
						|
    }
 | 
						|
  else
 | 
						|
    {
 | 
						|
      switch (priv->layout_style)
 | 
						|
        {
 | 
						|
          case GTK_BUTTONBOX_SPREAD:
 | 
						|
            if (orientation == GTK_ORIENTATION_HORIZONTAL)
 | 
						|
              requisition->width = total_size + ((nvis_children + 1)*spacing);
 | 
						|
            else
 | 
						|
              requisition->height = total_size + ((nvis_children + 1)*spacing);
 | 
						|
 | 
						|
            break;
 | 
						|
          case GTK_BUTTONBOX_EDGE:
 | 
						|
          case GTK_BUTTONBOX_START:
 | 
						|
          case GTK_BUTTONBOX_END:
 | 
						|
          case GTK_BUTTONBOX_CENTER:
 | 
						|
            if (orientation == GTK_ORIENTATION_HORIZONTAL)
 | 
						|
              requisition->width = total_size + ((nvis_children - 1)*spacing);
 | 
						|
            else
 | 
						|
              requisition->height = total_size + ((nvis_children - 1)*spacing);
 | 
						|
 | 
						|
            break;
 | 
						|
          default:
 | 
						|
            g_assert_not_reached ();
 | 
						|
            break;
 | 
						|
        }
 | 
						|
 | 
						|
      if (orientation == GTK_ORIENTATION_HORIZONTAL)
 | 
						|
        requisition->height = max_size;
 | 
						|
      else
 | 
						|
        requisition->width = max_size;
 | 
						|
    }
 | 
						|
 | 
						|
  border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
 | 
						|
  requisition->width += border_width * 2;
 | 
						|
  requisition->height += border_width * 2;
 | 
						|
}
 | 
						|
 | 
						|
static void
 | 
						|
gtk_button_box_size_allocate (GtkWidget     *widget,
 | 
						|
                              GtkAllocation *allocation)
 | 
						|
{
 | 
						|
  GtkButtonBoxPrivate *priv;
 | 
						|
  GtkButtonBox *bbox;
 | 
						|
  GList *children, *list;
 | 
						|
  GtkAllocation child_allocation;
 | 
						|
  gint nvis_children;
 | 
						|
  gint n_primaries;
 | 
						|
  gint n_secondaries;
 | 
						|
  gint x = 0;
 | 
						|
  gint y = 0;
 | 
						|
  gint secondary_x = 0;
 | 
						|
  gint secondary_y = 0;
 | 
						|
  gint width = 0;
 | 
						|
  gint height = 0;
 | 
						|
  gint childspacing = 0;
 | 
						|
  gint spacing;
 | 
						|
  guint border_width;
 | 
						|
  GtkOrientation orientation;
 | 
						|
  gint ipad_x, ipad_y;
 | 
						|
  gint *widths;
 | 
						|
  gint *heights;
 | 
						|
  gint *sizes;
 | 
						|
  gint primary_size;
 | 
						|
  gint secondary_size;
 | 
						|
  gint total_size;
 | 
						|
  gint i;
 | 
						|
 | 
						|
  bbox = GTK_BUTTON_BOX (widget);
 | 
						|
  priv = bbox->priv;
 | 
						|
 | 
						|
  border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
 | 
						|
  orientation = gtk_orientable_get_orientation (GTK_ORIENTABLE (widget));
 | 
						|
  spacing = gtk_box_get_spacing (GTK_BOX (widget));
 | 
						|
 | 
						|
  gtk_widget_style_get (widget,
 | 
						|
                        "child-internal-pad-x", &ipad_x,
 | 
						|
                        "child-internal-pad-y", &ipad_y,
 | 
						|
                        NULL);
 | 
						|
  gtk_button_box_child_requisition (widget,
 | 
						|
                                    &nvis_children,
 | 
						|
                                    &n_secondaries,
 | 
						|
                                    &widths, &heights);
 | 
						|
 | 
						|
  n_primaries = nvis_children - n_secondaries;
 | 
						|
  primary_size = 0;
 | 
						|
  secondary_size = 0;
 | 
						|
  if (orientation == GTK_ORIENTATION_HORIZONTAL)
 | 
						|
    sizes = widths;
 | 
						|
  else
 | 
						|
    sizes = heights;
 | 
						|
 | 
						|
  i = 0;
 | 
						|
  list = children = _gtk_box_get_children (GTK_BOX (widget));
 | 
						|
  while (children)
 | 
						|
    {
 | 
						|
      GtkWidget *child;
 | 
						|
 | 
						|
      child = children->data;
 | 
						|
      children = children->next;
 | 
						|
 | 
						|
      if (gtk_widget_get_visible (child))
 | 
						|
        {
 | 
						|
          if (gtk_button_box_get_child_secondary (bbox, child))
 | 
						|
            secondary_size += sizes[i];
 | 
						|
          else
 | 
						|
            primary_size += sizes[i];
 | 
						|
          i++;
 | 
						|
        }
 | 
						|
    }
 | 
						|
  total_size = primary_size + secondary_size;
 | 
						|
 | 
						|
  gtk_widget_set_allocation (widget, allocation);
 | 
						|
 | 
						|
  if (orientation == GTK_ORIENTATION_HORIZONTAL)
 | 
						|
    width = allocation->width - border_width*2;
 | 
						|
  else
 | 
						|
    height = allocation->height - border_width*2;
 | 
						|
 | 
						|
  switch (priv->layout_style)
 | 
						|
    {
 | 
						|
      case GTK_BUTTONBOX_SPREAD:
 | 
						|
 | 
						|
        if (orientation == GTK_ORIENTATION_HORIZONTAL)
 | 
						|
          {
 | 
						|
            childspacing = (width - total_size) / (nvis_children + 1);
 | 
						|
            x = allocation->x + border_width + childspacing;
 | 
						|
            secondary_x = x + primary_size + n_primaries * childspacing;
 | 
						|
          }
 | 
						|
        else
 | 
						|
          {
 | 
						|
            childspacing = (height - total_size) / (nvis_children + 1);
 | 
						|
            y = allocation->y + border_width + childspacing;
 | 
						|
            secondary_y = y + primary_size + n_primaries * childspacing;
 | 
						|
          }
 | 
						|
 | 
						|
        break;
 | 
						|
 | 
						|
      case GTK_BUTTONBOX_EDGE:
 | 
						|
 | 
						|
        if (orientation == GTK_ORIENTATION_HORIZONTAL)
 | 
						|
          {
 | 
						|
            if (nvis_children >= 2)
 | 
						|
              {
 | 
						|
                childspacing = (width - total_size) / (nvis_children - 1);
 | 
						|
                x = allocation->x + border_width;
 | 
						|
                secondary_x = x + primary_size + n_primaries * childspacing;
 | 
						|
              }
 | 
						|
            else
 | 
						|
              {
 | 
						|
                /* one or zero children, just center */
 | 
						|
                childspacing = width;
 | 
						|
                x = secondary_x = allocation->x
 | 
						|
                                  + (allocation->width - widths[0]) / 2;
 | 
						|
              }
 | 
						|
          }
 | 
						|
        else
 | 
						|
          {
 | 
						|
            if (nvis_children >= 2)
 | 
						|
              {
 | 
						|
                childspacing = (height - total_size) / (nvis_children - 1);
 | 
						|
                y = allocation->y + border_width;
 | 
						|
                secondary_y = y + primary_size + n_primaries * childspacing;
 | 
						|
              }
 | 
						|
            else
 | 
						|
              {
 | 
						|
                /* one or zero children, just center */
 | 
						|
                childspacing = height;
 | 
						|
                y = secondary_y = allocation->y
 | 
						|
                        + (allocation->height - heights[0]) / 2;
 | 
						|
              }
 | 
						|
          }
 | 
						|
 | 
						|
        break;
 | 
						|
 | 
						|
      case GTK_BUTTONBOX_START:
 | 
						|
 | 
						|
        if (orientation == GTK_ORIENTATION_HORIZONTAL)
 | 
						|
          {
 | 
						|
            childspacing = spacing;
 | 
						|
            x = allocation->x + border_width;
 | 
						|
            secondary_x = allocation->x + allocation->width
 | 
						|
              - secondary_size - spacing * (n_secondaries - 1) - border_width;
 | 
						|
          }
 | 
						|
        else
 | 
						|
          {
 | 
						|
            childspacing = spacing;
 | 
						|
            y = allocation->y + border_width;
 | 
						|
            secondary_y = allocation->y + allocation->height
 | 
						|
              - secondary_size - spacing * (n_secondaries - 1) - border_width;
 | 
						|
          }
 | 
						|
 | 
						|
        break;
 | 
						|
 | 
						|
      case GTK_BUTTONBOX_END:
 | 
						|
 | 
						|
        if (orientation == GTK_ORIENTATION_HORIZONTAL)
 | 
						|
          {
 | 
						|
            childspacing = spacing;
 | 
						|
            x = allocation->x + allocation->width
 | 
						|
              - primary_size - spacing * (n_primaries - 1) - border_width;
 | 
						|
            secondary_x = allocation->x + border_width;
 | 
						|
          }
 | 
						|
        else
 | 
						|
          {
 | 
						|
            childspacing = spacing;
 | 
						|
            y = allocation->y + allocation->height
 | 
						|
              - primary_size - spacing * (n_primaries - 1) - border_width;
 | 
						|
            secondary_y = allocation->y + border_width;
 | 
						|
          }
 | 
						|
 | 
						|
        break;
 | 
						|
 | 
						|
      case GTK_BUTTONBOX_CENTER:
 | 
						|
 | 
						|
        if (orientation == GTK_ORIENTATION_HORIZONTAL)
 | 
						|
          {
 | 
						|
            childspacing = spacing;
 | 
						|
            x = allocation->x +
 | 
						|
              (allocation->width
 | 
						|
               - (primary_size + spacing * (n_primaries - 1))) / 2
 | 
						|
              + (secondary_size + n_secondaries * spacing) / 2;
 | 
						|
            secondary_x = allocation->x + border_width;
 | 
						|
          }
 | 
						|
        else
 | 
						|
          {
 | 
						|
            childspacing = spacing;
 | 
						|
            y = allocation->y +
 | 
						|
              (allocation->height
 | 
						|
               - (primary_size + spacing * (n_primaries - 1))) / 2
 | 
						|
              + (secondary_size + n_secondaries * spacing) / 2;
 | 
						|
            secondary_y = allocation->y + border_width;
 | 
						|
          }
 | 
						|
 | 
						|
        break;
 | 
						|
 | 
						|
      default:
 | 
						|
        g_assert_not_reached ();
 | 
						|
        break;
 | 
						|
    }
 | 
						|
 | 
						|
  children = list;
 | 
						|
  i = 0;
 | 
						|
  while (children)
 | 
						|
    {
 | 
						|
      GtkWidget *child;
 | 
						|
 | 
						|
      child = children->data;
 | 
						|
      children = children->next;
 | 
						|
 | 
						|
      if (gtk_widget_get_visible (child))
 | 
						|
        {
 | 
						|
          child_allocation.width = widths[i];
 | 
						|
          child_allocation.height = heights[i];
 | 
						|
 | 
						|
          if (orientation == GTK_ORIENTATION_HORIZONTAL)
 | 
						|
            {
 | 
						|
              child_allocation.y = allocation->y + (allocation->height - child_allocation.height) / 2;
 | 
						|
 | 
						|
              if (gtk_button_box_get_child_secondary (bbox, child))
 | 
						|
                {
 | 
						|
                  child_allocation.x = secondary_x;
 | 
						|
                  secondary_x += child_allocation.width + childspacing;
 | 
						|
                }
 | 
						|
              else
 | 
						|
                {
 | 
						|
                  child_allocation.x = x;
 | 
						|
                  x += child_allocation.width + childspacing;
 | 
						|
                }
 | 
						|
 | 
						|
              if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
 | 
						|
                  child_allocation.x = (allocation->x + allocation->width)
 | 
						|
                          - (child_allocation.x + child_allocation.width - allocation->x);
 | 
						|
            }
 | 
						|
          else
 | 
						|
            {
 | 
						|
              child_allocation.x = allocation->x + (allocation->width - child_allocation.width) / 2;
 | 
						|
 | 
						|
              if (gtk_button_box_get_child_secondary (bbox, child))
 | 
						|
                {
 | 
						|
                  child_allocation.y = secondary_y;
 | 
						|
                  secondary_y += child_allocation.height + childspacing;
 | 
						|
                }
 | 
						|
              else
 | 
						|
                {
 | 
						|
                  child_allocation.y = y;
 | 
						|
                  y += child_allocation.height + childspacing;
 | 
						|
                }
 | 
						|
            }
 | 
						|
 | 
						|
          gtk_widget_size_allocate (child, &child_allocation);
 | 
						|
          i++;
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
  g_list_free (list);
 | 
						|
  g_free (widths);
 | 
						|
  g_free (heights);
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
 * gtk_button_box_new:
 | 
						|
 * @orientation: the box' orientation.
 | 
						|
 *
 | 
						|
 * Creates a new #GtkButtonBox.
 | 
						|
 *
 | 
						|
 * Return value: a new #GtkButtonBox.
 | 
						|
 *
 | 
						|
 * Since: 3.0
 | 
						|
 */
 | 
						|
GtkWidget *
 | 
						|
gtk_button_box_new (GtkOrientation orientation)
 | 
						|
{
 | 
						|
  return g_object_new (GTK_TYPE_BUTTON_BOX,
 | 
						|
                       "orientation", orientation,
 | 
						|
                       NULL);
 | 
						|
}
 |