--- /dev/null
+/* GAIL - The GNOME Accessibility Implementation Library
+ * Copyright 2008 Jan Arne Petersen
+ *
+ * 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 <config.h>
+
+#include <gtk/gtk.h>
+#include "gtkscalebuttonaccessible.h"
+
+#include <string.h>
+
+
+static void atk_action_interface_init (AtkActionIface *iface);
+static void atk_value_interface_init (AtkValueIface *iface);
+
+G_DEFINE_TYPE_WITH_CODE (GtkScaleButtonAccessible, gtk_scale_button_accessible, GAIL_TYPE_BUTTON,
+ G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init)
+ G_IMPLEMENT_INTERFACE (ATK_TYPE_VALUE, atk_value_interface_init));
+
+static void
+gtk_scale_button_accessible_value_changed (GtkAdjustment *adjustment,
+ gpointer data)
+{
+ g_object_notify (G_OBJECT (data), "accessible-value");
+}
+
+static void
+gtk_scale_button_accessible_initialize (AtkObject *obj,
+ gpointer data)
+{
+ GtkAdjustment *adjustment;
+
+ ATK_OBJECT_CLASS (gtk_scale_button_accessible_parent_class)->initialize (obj, data);
+
+ adjustment = gtk_scale_button_get_adjustment (GTK_SCALE_BUTTON (data));
+ if (adjustment)
+ g_signal_connect (adjustment,
+ "value-changed",
+ G_CALLBACK (gtk_scale_button_accessible_value_changed),
+ obj);
+
+ obj->role = ATK_ROLE_SLIDER;
+}
+
+static void
+gtk_scale_button_accessible_notify_gtk (GObject *obj,
+ GParamSpec *pspec)
+{
+ GtkScaleButton *scale_button;
+ GtkScaleButtonAccessible *accessible;
+
+ scale_button = GTK_SCALE_BUTTON (obj);
+ accessible = GTK_SCALE_BUTTON_ACCESSIBLE (gtk_widget_get_accessible (GTK_WIDGET (scale_button)));
+
+ if (strcmp (pspec->name, "adjustment") == 0)
+ {
+ GtkAdjustment* adjustment;
+
+ adjustment = gtk_scale_button_get_adjustment (scale_button);
+ g_signal_connect (adjustment,
+ "value-changed",
+ G_CALLBACK (gtk_scale_button_accessible_value_changed),
+ accessible);
+ }
+ else
+ {
+ GAIL_WIDGET_CLASS (gtk_scale_button_accessible_parent_class)->notify_gtk (obj, pspec);
+ }
+}
+
+static void
+gtk_scale_button_accessible_class_init (GtkScaleButtonAccessibleClass *klass)
+{
+ AtkObjectClass *atk_object_class = ATK_OBJECT_CLASS (klass);
+ GailWidgetClass *widget_class = GAIL_WIDGET_CLASS (klass);
+
+ atk_object_class->initialize = gtk_scale_button_accessible_initialize;
+
+ widget_class->notify_gtk = gtk_scale_button_accessible_notify_gtk;
+}
+
+static void
+gtk_scale_button_accessible_init (GtkScaleButtonAccessible *button)
+{
+}
+
+static gboolean
+gtk_scale_button_accessible_do_action (AtkAction *action,
+ gint i)
+{
+ GtkWidget *widget;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (action));
+ if (widget == NULL)
+ return FALSE;
+
+ if (!gtk_widget_is_sensitive (widget) || !gtk_widget_get_visible (widget))
+ return FALSE;
+
+ switch (i)
+ {
+ case 0:
+ g_signal_emit_by_name (widget, "popup");
+ return TRUE;
+ case 1:
+ g_signal_emit_by_name (widget, "podown");
+ return TRUE;
+ default:
+ return FALSE;
+ }
+}
+
+static gint
+gtk_scale_button_accessible_get_n_actions (AtkAction *action)
+{
+ return 2;
+}
+
+static const gchar *
+gtk_scale_button_accessible_get_description (AtkAction *action,
+ gint i)
+{
+ return NULL;
+}
+
+static const gchar *
+gtk_scale_button_accessible_action_get_name (AtkAction *action,
+ gint i)
+{
+ switch (i)
+ {
+ case 0:
+ return "popup";
+ case 1:
+ return "popdown";
+ default:
+ return NULL;
+ }
+}
+
+static void
+atk_action_interface_init (AtkActionIface *iface)
+{
+ iface->do_action = gtk_scale_button_accessible_do_action;
+ iface->get_n_actions = gtk_scale_button_accessible_get_n_actions;
+ iface->get_description = gtk_scale_button_accessible_get_description;
+ iface->get_name = gtk_scale_button_accessible_action_get_name;
+}
+
+static void
+gtk_scale_button_accessible_get_current_value (AtkValue *obj,
+ GValue *value)
+{
+ GtkWidget *widget;
+ GtkAdjustment *adjustment;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
+ adjustment = gtk_scale_button_get_adjustment (GTK_SCALE_BUTTON (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_scale_button_accessible_get_maximum_value (AtkValue *obj,
+ GValue *value)
+{
+ GtkWidget *widget;
+ GtkAdjustment *adjustment;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
+ adjustment = gtk_scale_button_get_adjustment (GTK_SCALE_BUTTON (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_upper (adjustment));
+}
+
+static void
+gtk_scale_button_accessible_get_minimum_value (AtkValue *obj,
+ GValue *value)
+{
+ GtkWidget *widget;
+ GtkAdjustment *adjustment;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
+ adjustment = gtk_scale_button_get_adjustment (GTK_SCALE_BUTTON (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_scale_button_accessible_get_minimum_increment (AtkValue *obj,
+ GValue *value)
+{
+ GtkWidget *widget;
+ GtkAdjustment *adjustment;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
+ adjustment = gtk_scale_button_get_adjustment (GTK_SCALE_BUTTON (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_scale_button_accessible_set_current_value (AtkValue *obj,
+ const GValue *value)
+{
+ GtkWidget *widget;
+ GtkAdjustment *adjustment;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
+ adjustment = gtk_scale_button_get_adjustment (GTK_SCALE_BUTTON (widget));
+ if (adjustment == NULL)
+ return FALSE;
+
+ gtk_adjustment_set_value (adjustment, g_value_get_double (value));
+
+ return TRUE;
+}
+
+static void
+atk_value_interface_init (AtkValueIface *iface)
+{
+ iface->get_current_value = gtk_scale_button_accessible_get_current_value;
+ iface->get_maximum_value = gtk_scale_button_accessible_get_maximum_value;
+ iface->get_minimum_value = gtk_scale_button_accessible_get_minimum_value;
+ iface->get_minimum_increment = gtk_scale_button_accessible_get_minimum_increment;
+ iface->set_current_value = gtk_scale_button_accessible_set_current_value;
+}
projects / ~andy / gtk / blobdiff