shutdownimpl.cpp

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/**********************************************************************
** Copyright (C) 2000 Trolltech AS.  All rights reserved.
**
** This file is part of Qtopia Environment.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/

#include "shutdownimpl.h"

#include <qpe/global.h>
#include <qpe/qcopenvelope_qws.h>

#include <qtimer.h>
#include <qprogressbar.h>
#include <qpushbutton.h>
#include <qbuttongroup.h>
#include <qlabel.h>
#include <qlayout.h>


static void changeButtonColor ( QPushButton *btn, const QColor &col )
{
        QPalette pal = btn-> palette ( );

        pal. setColor ( QPalette::Active, QColorGroup::Button, col );
        pal. setColor ( QPalette::Disabled, QColorGroup::Button, col );
        pal. setColor ( QPalette::Inactive, QColorGroup::Button, col );

        btn-> setPalette ( pal );
}


ShutdownImpl::ShutdownImpl( QWidget* parent, const char *name, WFlags fl )
                : QWidget ( parent, name, fl )
{
        setCaption ( tr( "Shutdown..." ) );

        QVBoxLayout *vbox = new QVBoxLayout ( this );
        vbox-> setSpacing ( 3 );
        vbox-> setMargin ( 6 );

        QButtonGroup *btngrp = new QButtonGroup ( this );

        btngrp-> setTitle ( tr( "Terminate" ) );
        btngrp-> setColumnLayout ( 0, Qt::Vertical );
        btngrp-> layout ( ) -> setSpacing ( 0 );
        btngrp-> layout ( ) -> setMargin ( 0 );

        QGridLayout *grid = new QGridLayout ( btngrp-> layout ( ) );
        grid-> setAlignment ( Qt::AlignTop );
        grid-> setSpacing ( 3 );
        grid-> setMargin ( 7 );

        QPushButton *quit = new QPushButton ( tr( "Terminate Opie" ), btngrp, "quit" );
        changeButtonColor ( quit, QColor ( 236, 236, 179 ) );
        btngrp-> insert ( quit, 4 );
        grid-> addWidget ( quit, 1, 1 );

        QPushButton *reboot = new QPushButton ( tr( "Reboot" ), btngrp, "reboot" );
        changeButtonColor ( reboot, QColor( 236, 183, 181 ) );
        btngrp-> insert ( reboot, 2 );
        grid-> addWidget( reboot, 1, 0 );

        QPushButton *restart = new QPushButton ( tr( "Restart Opie" ), btngrp, "restart" );
        changeButtonColor ( restart, QColor( 236, 236, 179 ) );
        btngrp-> insert ( restart, 3 );
        grid-> addWidget ( restart, 0, 1 );

        QPushButton *shutdown = new QPushButton( tr( "Shutdown" ), btngrp, "shutdown" );
        changeButtonColor ( shutdown, QColor( 236, 183, 181 ) );
        btngrp-> insert ( shutdown, 1 );
        grid-> addWidget ( shutdown, 0, 0 );

        vbox-> addWidget ( btngrp );

        m_info = new QLabel ( this, "info" );
        vbox-> addWidget ( m_info );

        m_progress = new QProgressBar ( this, "progressBar" );
        m_progress-> setFrameShape ( QProgressBar::Panel );
        m_progress-> setFrameShadow ( QProgressBar::Sunken );
        m_progress-> setTotalSteps ( 20 );
        m_progress-> setIndicatorFollowsStyle ( false );
        vbox-> addWidget ( m_progress );

        vbox-> addItem ( new QSpacerItem ( 20, 20, QSizePolicy::Minimum, QSizePolicy::Expanding ) );

        QPushButton *cancel = new QPushButton ( tr( "Cancel" ), this, "cancel" );
        changeButtonColor ( cancel, QColor( 181, 222, 178 ) );
        cancel-> setDefault ( true );
        cancel-> setSizePolicy ( QSizePolicy ( QSizePolicy::Minimum, QSizePolicy::Expanding, cancel-> sizePolicy ( ). hasHeightForWidth ( ) ) );
        vbox-> addWidget ( cancel );

        m_timer = new QTimer ( this );
        connect ( m_timer, SIGNAL( timeout() ), this, SLOT( timeout() ) );

        connect ( btngrp, SIGNAL( clicked(int) ), this, SLOT( buttonClicked(int) ) );
        connect ( cancel, SIGNAL( clicked() ), this, SLOT( cancelClicked() ) );

        m_progress-> hide ( );
        Global::hideInputMethod ( );
}

void ShutdownImpl::buttonClicked ( int b )
{
        m_counter = 0;

        switch ( b ) {
                case 1:
                        m_operation = ShutdownSystem;
                        break;
                case 2:
                        m_operation = RebootSystem;
                        break;
                case 3:
                        m_operation = RestartDesktop;
                        break;
                case 4:
                        m_operation = TerminateDesktop;
                        break;
        }
        m_info-> hide ( );
        m_progress-> show ( );
        m_timer-> start ( 300 );
        timeout ( );
}

void ShutdownImpl::cancelClicked ( )
{
        m_progress-> hide ( );
        m_info-> show ( );
        if ( m_timer-> isActive ( ) )
                m_timer-> stop ( );
        else
                close ( );
}

void ShutdownImpl::timeout ( )
{
        if ( ( m_counter += 2 ) > m_progress-> totalSteps ( ) ) {
                m_progress-> hide ( );
                m_timer-> stop ( );
                emit shutdown ( m_operation );
        }
        else
                m_progress-> setProgress ( m_counter );
}

void ShutdownImpl::hide ( )
{
        if ( isVisible ( )) {
                // hack - shutdown is a launcher dialog, but treated like a standalone app
                QCopEnvelope e( "QPE/System", "closing(QString)" );
                e << QString ( "shutdown" );
        
        }
        QWidget::hide ( );
}

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