forked from AuroraMiddleware/gtk
535e29c380
* modules/other/gail/*.[ch]: Remove relocations from the atk factories. Remove unused gail_foo_new() functions. Fix object instantiation to be derivation safe by moving initialisation code from the removed gail_foo_new() functions to the AtkObjectClass::initialize implementation. Bug #505226. svn path=/trunk/; revision=19237
223 lines
6.9 KiB
C
223 lines
6.9 KiB
C
/* GAIL - The GNOME Accessibility Implementation Library
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* Copyright 2001, 2002, 2003 Sun Microsystems Inc.
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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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <config.h>
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#include <string.h>
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#include <gtk/gtk.h>
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#include "gailprogressbar.h"
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#include "gailadjustment.h"
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static void gail_progress_bar_class_init (GailProgressBarClass *klass);
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static void gail_progress_bar_init (GailProgressBar *bar);
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static void gail_progress_bar_real_initialize (AtkObject *obj,
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gpointer data);
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static void gail_progress_bar_finalize (GObject *object);
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static void atk_value_interface_init (AtkValueIface *iface);
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static void gail_progress_bar_real_notify_gtk (GObject *obj,
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GParamSpec *pspec);
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static void gail_progress_bar_get_current_value (AtkValue *obj,
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GValue *value);
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static void gail_progress_bar_get_maximum_value (AtkValue *obj,
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GValue *value);
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static void gail_progress_bar_get_minimum_value (AtkValue *obj,
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GValue *value);
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static void gail_progress_bar_value_changed (GtkAdjustment *adjustment,
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gpointer data);
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G_DEFINE_TYPE_WITH_CODE (GailProgressBar, gail_progress_bar, GAIL_TYPE_WIDGET,
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G_IMPLEMENT_INTERFACE (ATK_TYPE_VALUE, atk_value_interface_init))
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static void
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gail_progress_bar_class_init (GailProgressBarClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
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GailWidgetClass *widget_class;
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widget_class = (GailWidgetClass*)klass;
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widget_class->notify_gtk = gail_progress_bar_real_notify_gtk;
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class->initialize = gail_progress_bar_real_initialize;
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gobject_class->finalize = gail_progress_bar_finalize;
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}
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static void
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gail_progress_bar_init (GailProgressBar *bar)
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{
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}
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static void
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gail_progress_bar_real_initialize (AtkObject *obj,
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gpointer data)
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{
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GailProgressBar *progress_bar = GAIL_PROGRESS_BAR (obj);
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GtkProgress *gtk_progress;
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ATK_OBJECT_CLASS (gail_progress_bar_parent_class)->initialize (obj, data);
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gtk_progress = GTK_PROGRESS (data);
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/*
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* If a GtkAdjustment already exists for the spin_button,
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* create the GailAdjustment
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*/
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if (gtk_progress->adjustment)
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{
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progress_bar->adjustment = gail_adjustment_new (gtk_progress->adjustment);
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g_signal_connect (gtk_progress->adjustment,
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"value-changed",
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G_CALLBACK (gail_progress_bar_value_changed),
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obj);
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}
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else
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progress_bar->adjustment = NULL;
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obj->role = ATK_ROLE_PROGRESS_BAR;
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}
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static void
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atk_value_interface_init (AtkValueIface *iface)
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{
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iface->get_current_value = gail_progress_bar_get_current_value;
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iface->get_maximum_value = gail_progress_bar_get_maximum_value;
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iface->get_minimum_value = gail_progress_bar_get_minimum_value;
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}
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static void
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gail_progress_bar_get_current_value (AtkValue *obj,
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GValue *value)
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{
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GailProgressBar *progress_bar;
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g_return_if_fail (GAIL_IS_PROGRESS_BAR (obj));
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progress_bar = GAIL_PROGRESS_BAR (obj);
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if (progress_bar->adjustment == NULL)
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/*
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* Adjustment has not been specified
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*/
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return;
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atk_value_get_current_value (ATK_VALUE (progress_bar->adjustment), value);
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}
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static void
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gail_progress_bar_get_maximum_value (AtkValue *obj,
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GValue *value)
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{
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GailProgressBar *progress_bar;
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g_return_if_fail (GAIL_IS_PROGRESS_BAR (obj));
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progress_bar = GAIL_PROGRESS_BAR (obj);
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if (progress_bar->adjustment == NULL)
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/*
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* Adjustment has not been specified
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*/
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return;
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atk_value_get_maximum_value (ATK_VALUE (progress_bar->adjustment), value);
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}
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static void
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gail_progress_bar_get_minimum_value (AtkValue *obj,
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GValue *value)
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{
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GailProgressBar *progress_bar;
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g_return_if_fail (GAIL_IS_PROGRESS_BAR (obj));
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progress_bar = GAIL_PROGRESS_BAR (obj);
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if (progress_bar->adjustment == NULL)
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/*
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* Adjustment has not been specified
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*/
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return;
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atk_value_get_minimum_value (ATK_VALUE (progress_bar->adjustment), value);
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}
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static void
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gail_progress_bar_finalize (GObject *object)
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{
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GailProgressBar *progress_bar = GAIL_PROGRESS_BAR (object);
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if (progress_bar->adjustment)
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{
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g_object_unref (progress_bar->adjustment);
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progress_bar->adjustment = NULL;
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}
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G_OBJECT_CLASS (gail_progress_bar_parent_class)->finalize (object);
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}
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static void
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gail_progress_bar_real_notify_gtk (GObject *obj,
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GParamSpec *pspec)
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{
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GtkWidget *widget = GTK_WIDGET (obj);
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GailProgressBar *progress_bar = GAIL_PROGRESS_BAR (gtk_widget_get_accessible (widget));
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if (strcmp (pspec->name, "adjustment") == 0)
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{
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/*
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* Get rid of the GailAdjustment for the GtkAdjustment
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* which was associated with the progress_bar.
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*/
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if (progress_bar->adjustment)
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{
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g_object_unref (progress_bar->adjustment);
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progress_bar->adjustment = NULL;
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}
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/*
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* Create the GailAdjustment when notify for "adjustment" property
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* is received
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*/
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progress_bar->adjustment = gail_adjustment_new (GTK_PROGRESS (widget)->adjustment);
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g_signal_connect (GTK_PROGRESS (widget)->adjustment,
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"value-changed",
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G_CALLBACK (gail_progress_bar_value_changed),
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progress_bar);
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}
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else
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GAIL_WIDGET_CLASS (gail_progress_bar_parent_class)->notify_gtk (obj, pspec);
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}
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static void
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gail_progress_bar_value_changed (GtkAdjustment *adjustment,
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gpointer data)
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{
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GailProgressBar *progress_bar;
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g_return_if_fail (adjustment != NULL);
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g_return_if_fail (data != NULL);
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progress_bar = GAIL_PROGRESS_BAR (data);
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g_object_notify (G_OBJECT (progress_bar), "accessible-value");
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}
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