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/***************************************************************************
                               kcm_krfb.cpp
                              --------------
    begin                : Sat Mar 02 2002
    copyright            : (C) 2002 by Tim Jansen
    email                : tim@tjansen.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#include "kcm_krfb.h"
#include "kcm_krfb.moc"

#include <tqlayout.h>
#include <tqcheckbox.h>
#include <tqlabel.h>
#include <tqradiobutton.h>
#include <tqlineedit.h>
#include <tqbuttongroup.h>
#include <tqcstring.h>
#include <tqdatastream.h>
#include <kapplication.h>
#include <kdialog.h>
#include <knuminput.h>
#include <klocale.h>
#include <kaboutdata.h>
#include <kconfig.h>
#include <kgenericfactory.h>
#include <kdatastream.h>
#include <kdebug.h>
#include <dcopclient.h>

#undef VERSION
#define VERSION "0.7"


typedef KGenericFactory<KcmKRfb, TQWidget> KcmKRfbFactory;

// Can't use K_EXPORT_COMPONENT_FACTORY, since insertCatalogue necessary
extern "C" {
  KDE_EXPORT void *init_kcm_krfb() {
    KGlobal::locale()->insertCatalogue("krfb"); // For invitation translations
    return new KcmKRfbFactory("kcm_krfb"); 
  }
}


KcmKRfb::KcmKRfb(TQWidget *p, const char *name, const TQStringList &) :
	KCModule(KcmKRfbFactory::instance(), p, name),
	m_configuration(KRFB_CONFIGURATION_MODE) {

        m_confWidget = new ConfigurationWidget(this);

	TQVBoxLayout *l = new TQVBoxLayout(this, 0, KDialog::spacingHint());
	l->add(m_confWidget);

	setButtons(Default|Apply|Reset);

	KAboutData* about = new KAboutData( "kcm_krfb", I18N_NOOP("Desktop Sharing Control Module"),
		VERSION,
		I18N_NOOP("Configure desktop sharing"), KAboutData::License_GPL,
		"(c) 2002, Tim Jansen\n",
		0, "http://www.tjansen.de/krfb", "tim@tjansen.de");
	about->addAuthor("Tim Jansen", 0, "tim@tjansen.de");
	setAboutData( about );

	load();

	connect(m_confWidget->passwordInput, TQT_SIGNAL(textChanged(const TQString&)), TQT_SLOT(configChanged()) );
	connect(m_confWidget->allowUninvitedCB, TQT_SIGNAL(clicked()), TQT_SLOT(configChanged()) );
	connect(m_confWidget->enableSLPCB, TQT_SIGNAL(clicked()), TQT_SLOT(configChanged()) );
	connect(m_confWidget->confirmConnectionsCB, TQT_SIGNAL(clicked()), TQT_SLOT(configChanged()) );
	connect(m_confWidget->allowDesktopControlCB, TQT_SIGNAL(clicked()), TQT_SLOT(configChanged()) );
	connect(m_confWidget->autoPortCB, TQT_SIGNAL(clicked()), TQT_SLOT(configChanged()) );
	connect(m_confWidget->portInput, TQT_SIGNAL(valueChanged(int)), TQT_SLOT(configChanged()) );
	connect((TQObject*)m_confWidget->manageInvitations, TQT_SIGNAL(clicked()), 
		&m_configuration, TQT_SLOT(showManageInvitationsDialog()) );
	connect(&m_configuration, TQT_SIGNAL(invitationNumChanged(int)), 
		this, TQT_SLOT(setInvitationNum(int)));
	setInvitationNum(m_configuration.invitations().size());
	connect(m_confWidget->disableBackgroundCB, TQT_SIGNAL(clicked()), TQT_SLOT(configChanged()) );
}

void KcmKRfb::configChanged() {
	emit changed(true);
}

void KcmKRfb::setInvitationNum(int num) {
	if (num == 0)
		m_confWidget->invitationNumLabel->setText(i18n("You have no open invitation."));
	else
		m_confWidget->invitationNumLabel->setText(i18n("Open invitations: %1").arg(num));
}

void KcmKRfb::checkKInetd(bool &kinetdAvailable, bool &krfbAvailable) {
	kinetdAvailable = false;
	krfbAvailable = false;

	DCOPClient *d = KApplication::dcopClient();

	TQByteArray sdata, rdata;
	TQCString replyType;
	TQDataStream arg(sdata, IO_WriteOnly);
	arg << TQString("krfb");
	if (!d->call ("kded", "kinetd", "isInstalled(TQString)", sdata, replyType, rdata))
		return;

	if (replyType != "bool")
		return;

	TQDataStream answer(rdata, IO_ReadOnly);
	answer >> krfbAvailable;
	kinetdAvailable = true;
}

void KcmKRfb::load() {
	bool kinetdAvailable, krfbAvailable;
	checkKInetd(kinetdAvailable, krfbAvailable);

	m_confWidget->allowUninvitedCB->setChecked(m_configuration.allowUninvitedConnections());
	m_confWidget->enableSLPCB->setChecked(m_configuration.enableSLP());
	m_confWidget->confirmConnectionsCB->setChecked(m_configuration.askOnConnect());
	m_confWidget->allowDesktopControlCB->setChecked(m_configuration.allowDesktopControl());
	m_confWidget->passwordInput->setText(m_configuration.password());
	m_confWidget->autoPortCB->setChecked(m_configuration.preferredPort()<0);
	m_confWidget->portInput->setValue(m_configuration.preferredPort()> 0 ?
		m_configuration.preferredPort() : 5900);
	m_confWidget->disableBackgroundCB->setChecked(m_configuration.disableBackground());
	emit changed(false);
}

void KcmKRfb::save() {

        m_configuration.update();
	bool allowUninvited = m_confWidget->allowUninvitedCB->isChecked();
	m_configuration.setAllowUninvited(allowUninvited);
	m_configuration.setEnableSLP(m_confWidget->enableSLPCB->isChecked());
	m_configuration.setAskOnConnect(m_confWidget->confirmConnectionsCB->isChecked());
	m_configuration.setAllowDesktopControl(m_confWidget->allowDesktopControlCB->isChecked());
	m_configuration.setPassword(m_confWidget->passwordInput->text());
	if (m_confWidget->autoPortCB->isChecked())
		m_configuration.setPreferredPort(-1);
	else
		m_configuration.setPreferredPort(m_confWidget->portInput->value());
	m_configuration.setDisableBackground(m_confWidget->disableBackgroundCB->isChecked());
	m_configuration.save();
	kapp->dcopClient()->emitDCOPSignal("KRFB::ConfigChanged", "KRFB_ConfigChanged()", TQByteArray());
	emit changed(false);
}

void KcmKRfb::defaults() {
	bool kinetdAvailable, krfbAvailable;
	checkKInetd(kinetdAvailable, krfbAvailable);

	m_confWidget->allowUninvitedCB->setChecked(false);
	m_confWidget->enableSLPCB->setChecked(true);
	m_confWidget->confirmConnectionsCB->setChecked(false);
	m_confWidget->allowDesktopControlCB->setChecked(false);
	m_confWidget->passwordInput->setText("");
	m_confWidget->autoPortCB->setChecked(true);
	m_confWidget->portInput->setValue(5900);
	m_confWidget->disableBackgroundCB->setChecked(false);
	emit changed(true);
}

TQString KcmKRfb::quickHelp() const
{
	return i18n("<h1>Desktop Sharing</h1> This module allows you to configure"
	            " the KDE desktop sharing.");
}