/* 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 "config.h" #include <string.h> #undef GTK_DISABLE_DEPRECATED #include <gtk/gtk.h> #include "gailprogressbar.h" #include "gailadjustment.h" static void gail_progress_bar_class_init (GailProgressBarClass *klass); static void gail_progress_bar_init (GailProgressBar *bar); static void gail_progress_bar_real_initialize (AtkObject *obj, gpointer data); static void gail_progress_bar_finalize (GObject *object); static void atk_value_interface_init (AtkValueIface *iface); static void gail_progress_bar_real_notify_gtk (GObject *obj, GParamSpec *pspec); static void gail_progress_bar_get_current_value (AtkValue *obj, GValue *value); static void gail_progress_bar_get_maximum_value (AtkValue *obj, GValue *value); static void gail_progress_bar_get_minimum_value (AtkValue *obj, GValue *value); static void gail_progress_bar_value_changed (GtkAdjustment *adjustment, gpointer data); G_DEFINE_TYPE_WITH_CODE (GailProgressBar, gail_progress_bar, GAIL_TYPE_WIDGET, G_IMPLEMENT_INTERFACE (ATK_TYPE_VALUE, atk_value_interface_init)) static void gail_progress_bar_class_init (GailProgressBarClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); AtkObjectClass *class = ATK_OBJECT_CLASS (klass); GailWidgetClass *widget_class; widget_class = (GailWidgetClass*)klass; widget_class->notify_gtk = gail_progress_bar_real_notify_gtk; class->initialize = gail_progress_bar_real_initialize; gobject_class->finalize = gail_progress_bar_finalize; } static void gail_progress_bar_init (GailProgressBar *bar) { } static void gail_progress_bar_real_initialize (AtkObject *obj, gpointer data) { GailProgressBar *progress_bar = GAIL_PROGRESS_BAR (obj); GtkProgress *gtk_progress; ATK_OBJECT_CLASS (gail_progress_bar_parent_class)->initialize (obj, data); gtk_progress = GTK_PROGRESS (data); /* * If a GtkAdjustment already exists for the spin_button, * create the GailAdjustment */ if (gtk_progress->adjustment) { progress_bar->adjustment = gail_adjustment_new (gtk_progress->adjustment); g_signal_connect (gtk_progress->adjustment, "value-changed", G_CALLBACK (gail_progress_bar_value_changed), obj); } else progress_bar->adjustment = NULL; obj->role = ATK_ROLE_PROGRESS_BAR; } static void atk_value_interface_init (AtkValueIface *iface) { iface->get_current_value = gail_progress_bar_get_current_value; iface->get_maximum_value = gail_progress_bar_get_maximum_value; iface->get_minimum_value = gail_progress_bar_get_minimum_value; } static void gail_progress_bar_get_current_value (AtkValue *obj, GValue *value) { GailProgressBar *progress_bar; g_return_if_fail (GAIL_IS_PROGRESS_BAR (obj)); progress_bar = GAIL_PROGRESS_BAR (obj); if (progress_bar->adjustment == NULL) /* * Adjustment has not been specified */ return; atk_value_get_current_value (ATK_VALUE (progress_bar->adjustment), value); } static void gail_progress_bar_get_maximum_value (AtkValue *obj, GValue *value) { GailProgressBar *progress_bar; g_return_if_fail (GAIL_IS_PROGRESS_BAR (obj)); progress_bar = GAIL_PROGRESS_BAR (obj); if (progress_bar->adjustment == NULL) /* * Adjustment has not been specified */ return; atk_value_get_maximum_value (ATK_VALUE (progress_bar->adjustment), value); } static void gail_progress_bar_get_minimum_value (AtkValue *obj, GValue *value) { GailProgressBar *progress_bar; g_return_if_fail (GAIL_IS_PROGRESS_BAR (obj)); progress_bar = GAIL_PROGRESS_BAR (obj); if (progress_bar->adjustment == NULL) /* * Adjustment has not been specified */ return; atk_value_get_minimum_value (ATK_VALUE (progress_bar->adjustment), value); } static void gail_progress_bar_finalize (GObject *object) { GailProgressBar *progress_bar = GAIL_PROGRESS_BAR (object); if (progress_bar->adjustment) { g_object_unref (progress_bar->adjustment); progress_bar->adjustment = NULL; } G_OBJECT_CLASS (gail_progress_bar_parent_class)->finalize (object); } static void gail_progress_bar_real_notify_gtk (GObject *obj, GParamSpec *pspec) { GtkWidget *widget = GTK_WIDGET (obj); GailProgressBar *progress_bar = GAIL_PROGRESS_BAR (gtk_widget_get_accessible (widget)); if (strcmp (pspec->name, "adjustment") == 0) { /* * Get rid of the GailAdjustment for the GtkAdjustment * which was associated with the progress_bar. */ if (progress_bar->adjustment) { g_object_unref (progress_bar->adjustment); progress_bar->adjustment = NULL; } /* * Create the GailAdjustment when notify for "adjustment" property * is received */ progress_bar->adjustment = gail_adjustment_new (GTK_PROGRESS (widget)->adjustment); g_signal_connect (GTK_PROGRESS (widget)->adjustment, "value-changed", G_CALLBACK (gail_progress_bar_value_changed), progress_bar); } else GAIL_WIDGET_CLASS (gail_progress_bar_parent_class)->notify_gtk (obj, pspec); } static void gail_progress_bar_value_changed (GtkAdjustment *adjustment, gpointer data) { GailProgressBar *progress_bar; g_return_if_fail (adjustment != NULL); g_return_if_fail (data != NULL); progress_bar = GAIL_PROGRESS_BAR (data); g_object_notify (G_OBJECT (progress_bar), "accessible-value"); }