From e6972011f01eab9f8d0a4584f32ee1e2a00f3231 Mon Sep 17 00:00:00 2001 From: Matthew Barnes Date: Sun, 13 Jun 2010 18:37:27 -0400 Subject: Embed libart_lgpl and libgnomecanvas. Both of these modules are deprecated and going away in GNOME 3 but we still rely heavily on them for GnomeCalendar and ETable. So, welcome to the island of unwanted libraries... --- libgnomecanvas/gailcanvas.c | 266 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 266 insertions(+) create mode 100644 libgnomecanvas/gailcanvas.c (limited to 'libgnomecanvas/gailcanvas.c') diff --git a/libgnomecanvas/gailcanvas.c b/libgnomecanvas/gailcanvas.c new file mode 100644 index 0000000000..4ec0b67de3 --- /dev/null +++ b/libgnomecanvas/gailcanvas.c @@ -0,0 +1,266 @@ +/* GAIL - The GNOME Accessibility Implementation Library + * Copyright 2001, 2002, 2003 Sun Microsystems Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser 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 +#include +#include +#include +#include +#include "gailcanvas.h" +#include "gailcanvasitem.h" +#include "gailcanvasgroupfactory.h" +#include "gailcanvastextfactory.h" +#include "gailcanvasitemfactory.h" +#include "gailcanvaswidgetfactory.h" + +static void gail_canvas_class_init (GailCanvasClass *klass); +static void gail_canvas_real_initialize (AtkObject *obj, + gpointer data); + +static gint gail_canvas_get_n_children (AtkObject *obj); +static AtkObject* gail_canvas_ref_child (AtkObject *obj, + gint i); + +static void adjustment_changed (GtkAdjustment *adjustment, + GnomeCanvas *canvas); + +static AtkObject* gail_canvas_factory_create_accessible (GObject *obj); + +static GType gail_canvas_factory_get_accessible_type (void); + +G_DEFINE_TYPE (GailCanvasFactory, + gail_canvas_factory, + ATK_TYPE_OBJECT_FACTORY); + +static void +gail_canvas_factory_init (GailCanvasFactory *foo) +{ + ; +} + +static void +gail_canvas_factory_class_init (GailCanvasFactoryClass *klass) +{ + AtkObjectFactoryClass *class = ATK_OBJECT_FACTORY_CLASS (klass); + + class->create_accessible = gail_canvas_factory_create_accessible; + class->get_accessible_type = gail_canvas_factory_get_accessible_type; +} + +static AtkObject* +gail_canvas_factory_create_accessible (GObject *obj) +{ + return gail_canvas_new (GTK_WIDGET (obj)); +} + +static GType +gail_canvas_factory_get_accessible_type (void) +{ + return GAIL_TYPE_CANVAS; +} + +GType +gail_canvas_get_type (void) +{ + static GType type = 0; + + if (!type) + { + GType parent_type = g_type_parent (GNOME_TYPE_CANVAS); + AtkObjectFactory *factory = atk_registry_get_factory ( + atk_get_default_registry (), + parent_type); + GType atkobject_parent_type = atk_object_factory_get_accessible_type (factory); + GTypeQuery query; + static GTypeInfo tinfo = + { + 0, /* class size */ + (GBaseInitFunc) NULL, /* base init */ + (GBaseFinalizeFunc) NULL, /* base finalize */ + (GClassInitFunc) gail_canvas_class_init, /* class init */ + (GClassFinalizeFunc) NULL, /* class finalize */ + NULL, /* class data */ + 0, /* instance size */ + 0, /* nb preallocs */ + (GInstanceInitFunc) NULL, /* instance init */ + NULL /* value table */ + }; + g_type_query (atkobject_parent_type, &query); + tinfo.class_size = query.class_size; + tinfo.instance_size = query.instance_size; + + /* use the size obtained from the parent type factory */ + type = g_type_register_static (atkobject_parent_type, + "GailCanvas", &tinfo, 0); + } + + return type; +} + +static AtkObjectClass *parent_atk_object_class; + +/** + * Tell ATK how to create the appropriate AtkObject peers + **/ +void +gail_canvas_init (void) +{ + atk_registry_set_factory_type (atk_get_default_registry (), + GNOME_TYPE_CANVAS, + gail_canvas_factory_get_type ()); + atk_registry_set_factory_type (atk_get_default_registry (), + GNOME_TYPE_CANVAS_GROUP, + gail_canvas_group_factory_get_type ()); + atk_registry_set_factory_type (atk_get_default_registry (), + GNOME_TYPE_CANVAS_TEXT, + gail_canvas_text_factory_get_type ()); + atk_registry_set_factory_type (atk_get_default_registry (), + GNOME_TYPE_CANVAS_RICH_TEXT, + gail_canvas_text_factory_get_type ()); + atk_registry_set_factory_type (atk_get_default_registry (), + GNOME_TYPE_CANVAS_WIDGET, + gail_canvas_widget_factory_get_type()); + atk_registry_set_factory_type (atk_get_default_registry (), + GNOME_TYPE_CANVAS_ITEM, + gail_canvas_item_factory_get_type ()); +} + +static void +gail_canvas_class_init (GailCanvasClass *klass) +{ + AtkObjectClass *class = ATK_OBJECT_CLASS (klass); + parent_atk_object_class = g_type_class_peek_parent (klass); + + class->get_n_children = gail_canvas_get_n_children; + class->ref_child = gail_canvas_ref_child; + class->initialize = gail_canvas_real_initialize; +} + +AtkObject* +gail_canvas_new (GtkWidget *widget) +{ + GObject *object; + AtkObject *accessible; + + g_return_val_if_fail (GNOME_IS_CANVAS (widget), NULL); + + object = g_object_new (GAIL_TYPE_CANVAS, NULL); + + accessible = ATK_OBJECT (object); + atk_object_initialize (accessible, widget); + + return accessible; +} + + +static void +gail_canvas_real_initialize (AtkObject *obj, + gpointer data) +{ + GnomeCanvas *canvas; + GtkAdjustment *adj; + + parent_atk_object_class->initialize (obj, data); + + canvas = GNOME_CANVAS (data); + + adj = canvas->layout.hadjustment; + g_signal_connect (adj, + "value_changed", + G_CALLBACK (adjustment_changed), + canvas); + + adj = canvas->layout.vadjustment; + g_signal_connect (adj, + "value_changed", + G_CALLBACK (adjustment_changed), + canvas); + + obj->role = ATK_ROLE_LAYERED_PANE; +} + +static gint +gail_canvas_get_n_children (AtkObject* obj) +{ + GtkAccessible *accessible; + GtkWidget *widget; + GnomeCanvas *canvas; + GnomeCanvasGroup *root_group; + + g_return_val_if_fail (GAIL_IS_CANVAS (obj), 0); + + accessible = GTK_ACCESSIBLE (obj); + widget = accessible->widget; + if (widget == NULL) + /* State is defunct */ + return 0; + + g_return_val_if_fail (GNOME_IS_CANVAS (widget), 0); + + canvas = GNOME_CANVAS (widget); + root_group = gnome_canvas_root (canvas); + g_return_val_if_fail (root_group, 0); + return 1; +} + +static AtkObject* +gail_canvas_ref_child (AtkObject *obj, + gint i) +{ + GtkAccessible *accessible; + GtkWidget *widget; + GnomeCanvas *canvas; + GnomeCanvasGroup *root_group; + AtkObject *atk_object; + + /* Canvas only has one child, so return NULL if anything else is requested */ + if (i != 0) + return NULL; + g_return_val_if_fail (GAIL_IS_CANVAS (obj), NULL); + + accessible = GTK_ACCESSIBLE (obj); + widget = accessible->widget; + if (widget == NULL) + /* State is defunct */ + return NULL; + g_return_val_if_fail (GNOME_IS_CANVAS (widget), NULL); + + canvas = GNOME_CANVAS (widget); + root_group = gnome_canvas_root (canvas); + g_return_val_if_fail (root_group, NULL); + + atk_object = atk_gobject_accessible_for_object (G_OBJECT (root_group)); + g_object_ref (atk_object); + return atk_object; +} + +static void +adjustment_changed (GtkAdjustment *adjustment, + GnomeCanvas *canvas) +{ + AtkObject *atk_obj; + + /* + * The scrollbars have changed + */ + atk_obj = gtk_widget_get_accessible (GTK_WIDGET (canvas)); + + g_signal_emit_by_name (atk_obj, "visible_data_changed"); +} + -- cgit