diff options
Diffstat (limited to 'gtk/a11y/gtkscrollbaraccessible.c')
| -rw-r--r-- | gtk/a11y/gtkscrollbaraccessible.c | 293 |
1 files changed, 0 insertions, 293 deletions
diff --git a/gtk/a11y/gtkscrollbaraccessible.c b/gtk/a11y/gtkscrollbaraccessible.c deleted file mode 100644 index 6a65ecf9de..0000000000 --- a/gtk/a11y/gtkscrollbaraccessible.c +++ /dev/null @@ -1,293 +0,0 @@ -/* GTK+ - accessibility implementations - * 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, see <http://www.gnu.org/licenses/>. - */ - -#include "config.h" - -#include <string.h> -#include <gtk/gtk.h> -#include "gtkscrollbaraccessible.h" - -typedef struct -{ - GtkAdjustment *adjustment; - gulong value_changed_id; -} GtkScrollbarAccessiblePrivate; - -static void atk_value_interface_init (AtkValueIface *iface); - -G_DEFINE_TYPE_WITH_CODE (GtkScrollbarAccessible, gtk_scrollbar_accessible, GTK_TYPE_WIDGET_ACCESSIBLE, - G_ADD_PRIVATE (GtkScrollbarAccessible) - G_IMPLEMENT_INTERFACE (ATK_TYPE_VALUE, atk_value_interface_init)) - -static void -on_value_changed (GtkAdjustment *adjustment, - gpointer data) -{ - GtkScrollbarAccessible *self = data; - - g_object_notify (G_OBJECT (self), "accessible-value"); -} - -static void -on_adjustment_changed (GObject *gobject, - GParamSpec *pspec, - gpointer data) -{ - GtkScrollbar *scrollbar = GTK_SCROLLBAR (gobject); - GtkScrollbarAccessible *self = data; - GtkScrollbarAccessiblePrivate *priv = - gtk_scrollbar_accessible_get_instance_private (self); - GtkAdjustment *adjustment = - gtk_scrollbar_get_adjustment (scrollbar); - - if (priv->adjustment == adjustment) - return; - - if (priv->adjustment != NULL && priv->value_changed_id != 0) - { - g_signal_handler_disconnect (priv->adjustment, priv->value_changed_id); - priv->value_changed_id = 0; - } - - g_clear_object (&priv->adjustment); - - if (adjustment != NULL) - { - priv->adjustment = g_object_ref (adjustment); - priv->value_changed_id = - g_signal_connect (priv->adjustment, "value-changed", - G_CALLBACK (on_value_changed), - self); - } -} - -static void -gtk_scrollbar_accessible_dispose (GObject *gobject) -{ - GtkScrollbarAccessible *self = GTK_SCROLLBAR_ACCESSIBLE (gobject); - GtkScrollbarAccessiblePrivate *priv = - gtk_scrollbar_accessible_get_instance_private (self); - - if (priv->adjustment != NULL && priv->value_changed_id != 0) - { - g_signal_handler_disconnect (priv->adjustment, priv->value_changed_id); - priv->value_changed_id = 0; - } - - g_clear_object (&priv->adjustment); - - G_OBJECT_CLASS (gtk_scrollbar_accessible_parent_class)->dispose (gobject); -} - -static void -gtk_scrollbar_accessible_initialize (AtkObject *obj, - gpointer data) -{ - GtkScrollbar *scrollbar = data; - - ATK_OBJECT_CLASS (gtk_scrollbar_accessible_parent_class)->initialize (obj, data); - - g_signal_connect (scrollbar, "notify::adjustment", - G_CALLBACK (on_adjustment_changed), - obj); -} - -static void -gtk_scrollbar_accessible_class_init (GtkScrollbarAccessibleClass *klass) -{ - AtkObjectClass *atk_object_class = ATK_OBJECT_CLASS (klass); - GObjectClass *gobject_class = G_OBJECT_CLASS (klass); - - atk_object_class->initialize = gtk_scrollbar_accessible_initialize; - - gobject_class->dispose = gtk_scrollbar_accessible_dispose; -} - -static void -gtk_scrollbar_accessible_init (GtkScrollbarAccessible *self) -{ - ATK_OBJECT (self)->role = ATK_ROLE_SCROLL_BAR; -} - -static void -gtk_scrollbar_accessible_get_current_value (AtkValue *obj, - GValue *value) -{ - GtkWidget *widget; - GtkAdjustment *adjustment; - - widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj)); - adjustment = gtk_scrollbar_get_adjustment (GTK_SCROLLBAR (widget)); - if (adjustment == NULL) - return; - - memset (value, 0, sizeof (GValue)); - g_value_init (value, G_TYPE_DOUBLE); - g_value_set_double (value, gtk_adjustment_get_value (adjustment)); -} - -static void -gtk_scrollbar_accessible_get_maximum_value (AtkValue *obj, - GValue *value) -{ - GtkWidget *widget; - GtkAdjustment *adjustment; - double max; - - widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj)); - adjustment = gtk_scrollbar_get_adjustment (GTK_SCROLLBAR (widget)); - if (adjustment == NULL) - return; - - max = gtk_adjustment_get_upper (adjustment) - - gtk_adjustment_get_page_size (adjustment); - - memset (value, 0, sizeof (GValue)); - g_value_init (value, G_TYPE_DOUBLE); - g_value_set_double (value, max); -} - -static void -gtk_scrollbar_accessible_get_minimum_value (AtkValue *obj, - GValue *value) -{ - GtkWidget *widget; - GtkAdjustment *adjustment; - - widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj)); - adjustment = gtk_scrollbar_get_adjustment (GTK_SCROLLBAR (widget)); - if (adjustment == NULL) - return; - - memset (value, 0, sizeof (GValue)); - g_value_init (value, G_TYPE_DOUBLE); - g_value_set_double (value, gtk_adjustment_get_lower (adjustment)); -} - -static void -gtk_scrollbar_accessible_get_minimum_increment (AtkValue *obj, - GValue *value) -{ - GtkWidget *widget; - GtkAdjustment *adjustment; - - widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj)); - adjustment = gtk_scrollbar_get_adjustment (GTK_SCROLLBAR (widget)); - if (adjustment == NULL) - return; - - memset (value, 0, sizeof (GValue)); - g_value_init (value, G_TYPE_DOUBLE); - g_value_set_double (value, gtk_adjustment_get_minimum_increment (adjustment)); -} - -static gboolean -gtk_scrollbar_accessible_set_current_value (AtkValue *obj, - const GValue *value) -{ - GtkWidget *widget; - GtkAdjustment *adjustment; - - widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj)); - adjustment = gtk_scrollbar_get_adjustment (GTK_SCROLLBAR (widget)); - if (adjustment == NULL) - return FALSE; - - gtk_adjustment_set_value (adjustment, g_value_get_double (value)); - - return TRUE; -} - -static void -gtk_scrollbar_accessible_get_value_and_text (AtkValue *obj, - double *value, - char **text) -{ - GtkWidget *widget; - GtkAdjustment *adjustment; - - widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj)); - adjustment = gtk_scrollbar_get_adjustment (GTK_SCROLLBAR (widget)); - if (adjustment == NULL) - return; - - *value = gtk_adjustment_get_value (adjustment); - *text = NULL; -} - -static AtkRange * -gtk_scrollbar_accessible_get_range (AtkValue *obj) -{ - GtkWidget *widget; - GtkAdjustment *adjustment; - double min, max; - - widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj)); - adjustment = gtk_scrollbar_get_adjustment (GTK_SCROLLBAR (widget)); - if (adjustment == NULL) - return NULL; - - min = gtk_adjustment_get_lower (adjustment); - max = gtk_adjustment_get_upper (adjustment) - - gtk_adjustment_get_page_size (adjustment); - - return atk_range_new (min, max, NULL); -} - -static void -gtk_scrollbar_accessible_set_value (AtkValue *obj, - const double value) -{ - GtkWidget *widget; - GtkAdjustment *adjustment; - - widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj)); - adjustment = gtk_scrollbar_get_adjustment (GTK_SCROLLBAR (widget)); - if (adjustment == NULL) - return; - - gtk_adjustment_set_value (adjustment, value); -} - -static double -gtk_scrollbar_accessible_get_increment (AtkValue *obj) -{ - GtkWidget *widget; - GtkAdjustment *adjustment; - - widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj)); - adjustment = gtk_scrollbar_get_adjustment (GTK_SCROLLBAR (widget)); - if (adjustment == NULL) - return 0; - - return gtk_adjustment_get_minimum_increment (adjustment); -} - -static void -atk_value_interface_init (AtkValueIface *iface) -{ - iface->get_current_value = gtk_scrollbar_accessible_get_current_value; - iface->get_maximum_value = gtk_scrollbar_accessible_get_maximum_value; - iface->get_minimum_value = gtk_scrollbar_accessible_get_minimum_value; - iface->get_minimum_increment = gtk_scrollbar_accessible_get_minimum_increment; - iface->set_current_value = gtk_scrollbar_accessible_set_current_value; - - iface->get_value_and_text = gtk_scrollbar_accessible_get_value_and_text; - iface->get_range = gtk_scrollbar_accessible_get_range; - iface->set_value = gtk_scrollbar_accessible_set_value; - iface->get_increment = gtk_scrollbar_accessible_get_increment; -} |