forked from AuroraMiddleware/gtk
c63087a563
To build a better world sometimes means having to tear the old one down.
-- Alexander Pierce, "Captain America: The Winter Soldier"
ATK served us well for nearly 20 years, but the world has changed, and
GTK has changed with it. Now ATK is mostly a hindrance towards improving
the accessibility stack:
- it maps to a very specific implementation, AT-SPI, which is Linux and
Unix specific
- it requires implementing the same functionality in three different
layers of the stack: AT-SPI, ATK, and GTK
- only GTK uses it; every other Linux and Unix toolkit and application
talks to AT-SPI directly, including assistive technologies
Sadly, we cannot incrementally port GTK to a new accessibility stack;
since ATK insulates us entirely from the underlying implementation, we
cannot replace it piecemeal. Instead, we're going to remove everything
and then incrementally build on a clean slate:
- add an "accessible" interface, implemented by GTK objects directly,
which describe the accessible role and state changes for every UI
element
- add an "assistive technology context" to proxy a native accessibility
API, and assign it to every widget
- implement the AT context depending on the platform
For more information, see: https://gitlab.gnome.org/GNOME/gtk/-/issues/2833
157 lines
4.3 KiB
C
157 lines
4.3 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, see <http://www.gnu.org/licenses/>.
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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 "config.h"
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#include "gtkseparator.h"
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#include "gtkintl.h"
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#include "gtkorientable.h"
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#include "gtkprivate.h"
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#include "gtkwidgetprivate.h"
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/**
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* SECTION:gtkseparator
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* @Short_description: A separator widget
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* @Title: GtkSeparator
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*
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* GtkSeparator is a horizontal or vertical separator widget, depending on the
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* value of the #GtkOrientable:orientation property, used to group the widgets
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* within a window. It displays a line with a shadow to make it appear sunken
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* into the interface.
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*
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* # CSS nodes
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*
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* GtkSeparator has a single CSS node with name separator. The node
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* gets one of the .horizontal or .vertical style classes.
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*/
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typedef struct _GtkSeparatorClass GtkSeparatorClass;
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struct _GtkSeparator
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{
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GtkWidget parent_instance;
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GtkOrientation orientation;
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};
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struct _GtkSeparatorClass
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{
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GtkWidgetClass parent_class;
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};
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enum {
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PROP_0,
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PROP_ORIENTATION
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};
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G_DEFINE_TYPE_WITH_CODE (GtkSeparator, gtk_separator, GTK_TYPE_WIDGET,
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G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL))
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static void
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gtk_separator_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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GtkSeparator *separator = GTK_SEPARATOR (object);
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switch (prop_id)
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{
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case PROP_ORIENTATION:
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if (separator->orientation != g_value_get_enum (value))
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{
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separator->orientation = g_value_get_enum (value);
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gtk_widget_update_orientation (GTK_WIDGET (object),
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separator->orientation);
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gtk_widget_queue_resize (GTK_WIDGET (object));
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g_object_notify_by_pspec (object, pspec);
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}
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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_separator_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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GtkSeparator *separator = GTK_SEPARATOR (object);
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switch (prop_id)
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{
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case PROP_ORIENTATION:
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g_value_set_enum (value, separator->orientation);
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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_separator_init (GtkSeparator *separator)
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{
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separator->orientation = GTK_ORIENTATION_HORIZONTAL;
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gtk_widget_update_orientation (GTK_WIDGET (separator),
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separator->orientation);
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}
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static void
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gtk_separator_class_init (GtkSeparatorClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
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object_class->set_property = gtk_separator_set_property;
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object_class->get_property = gtk_separator_get_property;
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g_object_class_override_property (object_class, PROP_ORIENTATION, "orientation");
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gtk_widget_class_set_css_name (widget_class, I_("separator"));
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}
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/**
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* gtk_separator_new:
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* @orientation: the separator’s orientation.
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*
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* Creates a new #GtkSeparator with the given orientation.
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*
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* Returns: a new #GtkSeparator.
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*/
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GtkWidget *
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gtk_separator_new (GtkOrientation orientation)
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{
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return g_object_new (GTK_TYPE_SEPARATOR,
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"orientation", orientation,
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NULL);
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}
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