gtk2/gtk/gtkextendedlayout.c

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/* gtkextendedlayout.c
* Copyright (C) 2007 Openismus GmbH
*
* Author:
* Mathias Hasselmann <mathias@openismus.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include "gtkextendedlayout.h"
#include "gtkintl.h"
#include "gtkalias.h"
GType
gtk_extended_layout_get_type (void)
{
static GType extended_layout_type = 0;
if (G_UNLIKELY(!extended_layout_type))
extended_layout_type =
g_type_register_static_simple (G_TYPE_INTERFACE, I_("GtkExtendedLayout"),
sizeof (GtkExtendedLayoutIface),
NULL, 0, NULL, 0);
return extended_layout_type;
}
/**
* gtk_extended_layout_get_desired_size:
* @layout: a #GtkExtendedLayout instance
* @minimum_size: location for storing the minimum size, or %NULL
* @natural_size: location for storing the preferred size, or %NULL
*
* Retreives an extended layout item's desired size.
*
* Since: 2.20
*/
void
gtk_extended_layout_get_desired_size (GtkExtendedLayout *layout,
GtkRequisition *minimum_size,
GtkRequisition *natural_size)
{
GtkExtendedLayoutIface *iface;
g_return_if_fail (GTK_IS_EXTENDED_LAYOUT (layout));
g_return_if_fail (NULL != minimum_size || NULL != natural_size);
iface = GTK_EXTENDED_LAYOUT_GET_IFACE (layout);
iface->get_desired_size (layout, minimum_size, natural_size);
}
/**
* gtk_extended_layout_get_width_for_height:
* @layout: a #GtkExtendedLayout instance
* @height: the size which is available for allocation
* @minimum_size: location for storing the minimum size, or %NULL
* @natural_size: location for storing the preferred size, or %NULL
*
* Retreives an extended layout item's desired width if it would given
* the size specified in @height.
*
* Since: 2.20
*/
void
gtk_extended_layout_get_width_for_height (GtkExtendedLayout *layout,
gint height,
gint *minimum_width,
gint *natural_width)
{
GtkExtendedLayoutIface *iface;
g_return_if_fail (GTK_IS_EXTENDED_LAYOUT (layout));
iface = GTK_EXTENDED_LAYOUT_GET_IFACE (layout);
if (iface->get_width_for_height)
iface->get_width_for_height (layout, height, minimum_width, natural_width);
else
{
GtkRequisition minimum_size;
GtkRequisition natural_size;
iface->get_desired_size (layout, &minimum_size, &natural_size);
if (minimum_width)
*minimum_width = minimum_size.width;
if (natural_width)
*natural_width = natural_size.width;
}
}
/**
* gtk_extended_layout_get_height_for_width:
* @layout: a #GtkExtendedLayout instance
* @width: the size which is available for allocation
* @minimum_size: location for storing the minimum size, or %NULL
* @natural_size: location for storing the preferred size, or %NULL
*
* Retreives an extended layout item's desired height if it would given
* the size specified in @width.
*
* Since: 2.20
*/
void
gtk_extended_layout_get_height_for_width (GtkExtendedLayout *layout,
gint width,
gint *minimum_height,
gint *natural_height)
{
GtkExtendedLayoutIface *iface;
g_return_if_fail (GTK_IS_EXTENDED_LAYOUT (layout));
iface = GTK_EXTENDED_LAYOUT_GET_IFACE (layout);
if (iface->get_height_for_width)
iface->get_height_for_width (layout, width, minimum_height, natural_height);
else
{
GtkRequisition minimum_size;
GtkRequisition natural_size;
iface->get_desired_size (layout, &minimum_size, &natural_size);
if (minimum_height)
*minimum_height = minimum_size.height;
if (natural_height)
*natural_height = natural_size.height;
}
}
#define __GTK_EXTENDED_LAYOUT_C__
#include "gtkaliasdef.c"