141 lines
4.2 KiB
C
141 lines
4.2 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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* gtkorientable.c
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* Copyright (C) 2008 Imendio AB
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* Contact: Michael Natterer <mitch@imendio.com>
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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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#include "config.h"
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#include "gtkorientableprivate.h"
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#include "gtkprivate.h"
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#include "gtktypebuiltins.h"
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#include "gtkintl.h"
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/**
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* SECTION:gtkorientable
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* @Short_description: An interface for flippable widgets
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* @Title: GtkOrientable
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*
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* The #GtkOrientable interface is implemented by all widgets that can be
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* oriented horizontally or vertically. Historically, such widgets have been
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* realized as subclasses of a common base class (e.g #GtkBox/#GtkHBox/#GtkVBox
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* or #GtkScale/#GtkHScale/#GtkVScale). #GtkOrientable is more flexible in that
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* it allows the orientation to be changed at runtime, allowing the widgets
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* to 'flip'.
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*
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* #GtkOrientable was introduced in GTK+ 2.16.
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*/
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typedef GtkOrientableIface GtkOrientableInterface;
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G_DEFINE_INTERFACE (GtkOrientable, gtk_orientable, G_TYPE_OBJECT)
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static void
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gtk_orientable_default_init (GtkOrientableInterface *iface)
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{
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/**
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* GtkOrientable:orientation:
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*
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* The orientation of the orientable.
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*
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* Since: 2.16
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**/
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g_object_interface_install_property (iface,
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g_param_spec_enum ("orientation",
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P_("Orientation"),
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P_("The orientation of the orientable"),
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GTK_TYPE_ORIENTATION,
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GTK_ORIENTATION_HORIZONTAL,
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GTK_PARAM_READWRITE));
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}
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/**
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* gtk_orientable_set_orientation:
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* @orientable: a #GtkOrientable
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* @orientation: the orientable's new orientation.
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*
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* Sets the orientation of the @orientable.
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*
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* Since: 2.16
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**/
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void
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gtk_orientable_set_orientation (GtkOrientable *orientable,
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GtkOrientation orientation)
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{
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g_return_if_fail (GTK_IS_ORIENTABLE (orientable));
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g_object_set (orientable,
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"orientation", orientation,
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NULL);
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if (GTK_IS_WIDGET (orientable))
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_gtk_orientable_set_style_classes (orientable);
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}
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/**
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* gtk_orientable_get_orientation:
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* @orientable: a #GtkOrientable
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*
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* Retrieves the orientation of the @orientable.
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*
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* Return value: the orientation of the @orientable.
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*
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* Since: 2.16
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**/
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GtkOrientation
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gtk_orientable_get_orientation (GtkOrientable *orientable)
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{
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GtkOrientation orientation;
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g_return_val_if_fail (GTK_IS_ORIENTABLE (orientable),
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GTK_ORIENTATION_HORIZONTAL);
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g_object_get (orientable,
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"orientation", &orientation,
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NULL);
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return orientation;
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}
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void
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_gtk_orientable_set_style_classes (GtkOrientable *orientable)
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{
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GtkStyleContext *context;
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GtkOrientation orientation;
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g_return_if_fail (GTK_IS_ORIENTABLE (orientable));
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g_return_if_fail (GTK_IS_WIDGET (orientable));
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context = gtk_widget_get_style_context (GTK_WIDGET (orientable));
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orientation = gtk_orientable_get_orientation (orientable);
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if (orientation == GTK_ORIENTATION_HORIZONTAL)
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{
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gtk_style_context_add_class (context, GTK_STYLE_CLASS_HORIZONTAL);
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gtk_style_context_remove_class (context, GTK_STYLE_CLASS_VERTICAL);
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}
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else
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{
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gtk_style_context_add_class (context, GTK_STYLE_CLASS_VERTICAL);
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gtk_style_context_remove_class (context, GTK_STYLE_CLASS_HORIZONTAL);
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}
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}
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