/*
 * "Software pw3270, desenvolvido com base nos códigos fontes do WC3270  e X3270
 * (Paul Mattes Paul.Mattes@usa.net), de emulação de terminal 3270 para acesso a
 * aplicativos mainframe. Registro no INPI sob o nome G3270.
 *
 * Copyright (C) <2008> <Banco do Brasil S.A.>
 *
 * Este programa é software livre. Você pode redistribuí-lo e/ou modificá-lo sob
 * os termos da GPL v.2 - Licença Pública Geral  GNU,  conforme  publicado  pela
 * Free Software Foundation.
 *
 * Este programa é distribuído na expectativa de  ser  útil,  mas  SEM  QUALQUER
 * GARANTIA; sem mesmo a garantia implícita de COMERCIALIZAÇÃO ou  de  ADEQUAÇÃO
 * A QUALQUER PROPÓSITO EM PARTICULAR. Consulte a Licença Pública Geral GNU para
 * obter mais detalhes.
 *
 * Você deve ter recebido uma cópia da Licença Pública Geral GNU junto com este
 * programa; se não, escreva para a Free Software Foundation, Inc., 51 Franklin
 * St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Este programa está nomeado como - e possui - linhas de código.
 *
 * Contatos:
 *
 * perry.werneck@gmail.com	(Alexandre Perry de Souza Werneck)
 * erico.mendonca@gmail.com	(Erico Mascarenhas Mendonça)
 *
 */

 #include "../private.h"
 #include <internals.h>
 #include <v3270/settings.h>
 #include <lib3270/log.h>

 G_DEFINE_TYPE(V3270Settings, V3270Settings, GTK_TYPE_GRID);

/*--[ Implement ]------------------------------------------------------------------------------------*/

static void apply(GtkWidget G_GNUC_UNUSED(*widget), GtkWidget G_GNUC_UNUSED(*terminal))
{
	debug("V3270Settings::%s",__FUNCTION__);
}

static void cancel(GtkWidget G_GNUC_UNUSED(*widget), GtkWidget G_GNUC_UNUSED(*terminal))
{
	debug("V3270Settings::%s",__FUNCTION__);
}

static void load(GtkWidget G_GNUC_UNUSED(*widget), GtkWidget G_GNUC_UNUSED(*terminal))
{
	debug("V3270Settings::%s",__FUNCTION__);
}

static void update_message(GtkWidget G_GNUC_UNUSED(*widget), GtkWidget G_GNUC_UNUSED(*terminal))
{
	debug("V3270Settings::%s",__FUNCTION__);
}

static void finalize(GObject *object)
{
	v3270_settings_set_terminal_widget(GTK_WIDGET(object),NULL);
	G_OBJECT_CLASS(V3270Settings_parent_class)->finalize(object);
}

static void V3270Settings_class_init(V3270SettingsClass *klass)
{
    klass->apply = apply;
    klass->revert = cancel;
    klass->load = load;
    klass->update_message = update_message;

    G_OBJECT_CLASS(klass)->finalize = finalize;
}

static void V3270Settings_init(V3270Settings *widget)
{
    widget->terminal = NULL;

	// https://developer.gnome.org/hig/stable/visual-layout.html.en
 	gtk_grid_set_row_spacing(GTK_GRID(widget),6);
 	gtk_grid_set_column_spacing(GTK_GRID(widget),12);

}

static void signal_update_message(GtkWidget *terminal, LIB3270_MESSAGE G_GNUC_UNUSED(id), GtkWidget *settings)
{
	GTK_V3270_SETTINGS_GET_CLASS(settings)->update_message(settings,terminal);
}

LIB3270_EXPORT void v3270_settings_set_terminal_widget(GtkWidget *widget, GtkWidget *terminal)
{
	g_return_if_fail(GTK_IS_V3270_SETTINGS(widget));

	V3270Settings * settings = GTK_V3270_SETTINGS(widget);

	// Return if there's nothing to do.
	if(settings->terminal == terminal)
		return;

	if(settings->terminal)
	{
		// Disconnect old terminal widget
		gulong handler = g_signal_handler_find(
								settings->terminal,
								G_SIGNAL_MATCH_FUNC|G_SIGNAL_MATCH_DATA,
								0,
								0,
								NULL,
								G_CALLBACK(signal_update_message),
								widget
							);

		debug("handler=%u",(unsigned long) handler);

		if(handler)
			g_signal_handler_disconnect(settings->terminal, handler);

	}

	// Update terminal
	settings->terminal = terminal;

	if(settings->terminal)
	{
		// Connect the new widget.
		g_signal_connect(G_OBJECT(terminal),I_("message_changed"), G_CALLBACK(signal_update_message), widget);

		// Update dialog state.
		GTK_V3270_SETTINGS_GET_CLASS(widget)->update_message(widget,terminal);

		// Load the dialog contents.
		GTK_V3270_SETTINGS_GET_CLASS(widget)->load(widget,terminal);
	}

 }

 LIB3270_EXPORT GtkWidget * v3270_settings_get_terminal_widget(GtkWidget *widget)
 {
	g_return_val_if_fail(GTK_IS_V3270_SETTINGS(widget),NULL);
    return GTK_V3270_SETTINGS(widget)->terminal;
 }

 LIB3270_EXPORT void v3270_settings_apply(GtkWidget *widget)
 {
    g_return_if_fail(GTK_IS_V3270_SETTINGS(widget));
    GTK_V3270_SETTINGS_GET_CLASS(widget)->apply(widget,GTK_V3270_SETTINGS(widget)->terminal);

    /*

    BUG: The signal should be sent by the dialog!

    V3270Settings * settings = GTK_V3270_SETTINGS(widget);
    if(settings && settings->terminal)
		v3270_emit_save_settings(settings->terminal);
	*/
 }

 LIB3270_EXPORT void v3270_settings_revert(GtkWidget *widget)
 {
    g_return_if_fail(GTK_IS_V3270_SETTINGS(widget));
    GTK_V3270_SETTINGS_GET_CLASS(widget)->revert(widget,GTK_V3270_SETTINGS(widget)->terminal);
 }

 LIB3270_EXPORT const gchar * v3270_settings_get_title(GtkWidget *widget)
 {
 	g_return_val_if_fail(GTK_IS_V3270_SETTINGS(widget),NULL);
 	return GTK_V3270_SETTINGS(widget)->title;
 }

 LIB3270_EXPORT const gchar * v3270_settings_get_label(GtkWidget *widget)
 {
 	g_return_val_if_fail(GTK_IS_V3270_SETTINGS(widget),NULL);
 	return GTK_V3270_SETTINGS(widget)->label;
 }

 LIB3270_EXPORT const gchar * v3270_settings_get_tooltip(GtkWidget *widget)
 {
 	g_return_val_if_fail(GTK_IS_V3270_SETTINGS(widget),NULL);
 	return GTK_V3270_SETTINGS(widget)->tooltip;
 }