/*
       =.            This file is part of the OPIE Project
      .=l.            Copyright (c)  2002 Robert Griebl <sandman@handhelds.org>
     .>+-=
_;:,   .>  :=|.         This file is free software; you can
.> <`_,  > .  <=          redistribute it and/or modify it under
:`=1 )Y*s>-.--  :           the terms of the GNU General Public
.="- .-=="i,   .._         License as published by the Free Software
- .  .-<_>   .<>         Foundation; either version 2 of the License,
  ._= =}    :          or (at your option) any later version.
  .%`+i>    _;_.
  .i_,=:_.   -<s.       This file 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 General
..}^=.=    =    ;      Public License for more details.
++=  -.   .`   .:
:   = ...= . :.=-        You should have received a copy of the GNU
-.  .:....=;==+<;          General Public License along with this file;
 -_. . .  )=. =           see the file COPYING. If not, write to the
  --    :-=`           Free Software Foundation, Inc.,
                             59 Temple Place - Suite 330,
                             Boston, MA 02111-1307, USA.

*/

#include "buttonsettings.h"
#include "buttonutils.h"
#include "remapdlg.h"

#include <opie2/odevice.h>

#include <qpe/applnk.h>

#include <qlayout.h>
#include <qlabel.h>
#include <qtimer.h>
#include <qscrollview.h>
#include <qcopchannel_qws.h>

using namespace Opie::Core;

struct buttoninfo {
    const ODeviceButton *m_button;
    int          m_index;

    OQCopMessage m_pmsg;
    QLabel      *m_picon;
    QLabel      *m_plabel;

    OQCopMessage m_hmsg;
    QLabel      *m_hicon;
    QLabel      *m_hlabel;

    bool        m_pdirty : 1;
    bool        m_hdirty : 1;
};


ButtonSettings::ButtonSettings ( QWidget *parent , const char *,  bool, WFlags  )
    : QDialog ( parent, "ButtonSettings", false, WStyle_ContextHelp )
{
    const QValueList <ODeviceButton> &buttons = ODevice::inst ( )-> buttons ( );
    (void) ButtonUtils::inst ( ); // initialise

    setCaption ( tr( "Button Settings" ));

    QVBoxLayout *toplay = new QVBoxLayout ( this, 3, 3 );
    QScrollView*mainview = new QScrollView(this);
    mainview->setResizePolicy( QScrollView::AutoOneFit );

    toplay->addWidget(mainview);
    QFrame*framehold=new QFrame(mainview->viewport());
    framehold->setFrameStyle(QFrame::NoFrame|QFrame::Plain);
    mainview->addChild(framehold);
    toplay = new QVBoxLayout (framehold, 3, 3 );

    QLabel *l = new QLabel ( tr( "<center>Press or hold the button you want to remap.</center>" ), framehold );
    toplay-> addWidget ( l );

    QGridLayout *lay = new QGridLayout ( toplay );
    lay-> setMargin ( 0 );
    lay-> setColStretch ( 0, 0 );
    lay-> setColStretch ( 1, 0 );
    lay-> setColStretch ( 2, 0 );
    lay-> setColStretch ( 3, 10 );

    m_infos. setAutoDelete ( true );

    int i = 1;
    int index = 0;
    for ( QValueList<ODeviceButton>::ConstIterator it = buttons. begin ( ); it != buttons. end ( ); it++ ) {
        if ( it != buttons. begin ( )) {
            QFrame *f = new QFrame ( framehold );
            f-> setFrameStyle ( QFrame::Sunken | QFrame::VLine );
            lay-> addMultiCellWidget ( f, i, i, 0, 3 );
            i++;
        }

        buttoninfo *bi = new buttoninfo ( );
        bi-> m_button = &(*it);
        bi-> m_index = index++;
        bi-> m_pmsg = (*it). pressedAction ( );
        bi-> m_hmsg = (*it). heldAction ( );
        bi-> m_pdirty = false;
        bi-> m_hdirty = false;

        l = new QLabel ( framehold );
        l-> setPixmap (( *it ). pixmap ( ));

        lay-> addMultiCellWidget ( l, i, i + 1, 0, 0 );

        l = new QLabel ( tr( "Press:" ), framehold );
        lay-> addWidget ( l, i, 1, AlignLeft | AlignBottom );
        l = new QLabel ( tr( "Hold:" ), framehold );
        lay-> addWidget ( l, i + 1, 1, AlignLeft | AlignTop );

        l = new QLabel ( framehold );
        l-> setFixedSize ( AppLnk::smallIconSize(), AppLnk::smallIconSize() );
        lay-> addWidget ( l, i, 2, AlignLeft | AlignBottom );
        bi-> m_picon = l;

        l = new QLabel ( framehold );
        l-> setAlignment ( AlignLeft | AlignVCenter | SingleLine );
        lay-> addWidget ( l, i, 3, AlignLeft | AlignBottom );
        bi-> m_plabel = l;

        l = new QLabel ( framehold );
        l-> setFixedSize ( AppLnk::smallIconSize(), AppLnk::smallIconSize() );
        lay-> addWidget ( l, i + 1, 2, AlignLeft | AlignTop );
        bi-> m_hicon = l;

        l = new QLabel ( framehold );
        l-> setAlignment ( AlignLeft | AlignVCenter | SingleLine );
        lay-> addWidget ( l, i + 1, 3, AlignLeft | AlignTop );
        bi-> m_hlabel = l;

        i += 2;

        m_infos. append ( bi );
    }

    toplay-> addStretch ( 10 );

    m_last_button = 0;
    m_lock = false;

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

    updateLabels ( );

    QPEApplication::grabKeyboard ( );
}

ButtonSettings::~ButtonSettings ( )
{
    QPEApplication::ungrabKeyboard ( );
    QCopChannel::send ("QPE/System", "deviceButtonMappingChanged()" );
}

void ButtonSettings::updateLabels ( )
{
    for ( QListIterator <buttoninfo> it ( m_infos ); *it; ++it ) {
        qCopInfo cip = ButtonUtils::inst ( )-> messageToInfo ((*it)-> m_pmsg );

        QPixmap pic;
        pic.convertFromImage( cip.m_icon.convertToImage().smoothScale( AppLnk::smallIconSize(), AppLnk::smallIconSize() ) );
        (*it)-> m_picon-> setPixmap ( pic );
        (*it)-> m_plabel-> setText ( cip. m_name );

        qCopInfo cih = ButtonUtils::inst ( )-> messageToInfo ((*it)-> m_hmsg );

        pic.convertFromImage( cih.m_icon.convertToImage().smoothScale( AppLnk::smallIconSize(), AppLnk::smallIconSize() ) );
        (*it)-> m_hicon-> setPixmap ( pic );
        (*it)-> m_hlabel-> setText ( cih. m_name );
    }
}

buttoninfo *ButtonSettings::buttonInfoForKeycode ( ushort key )
{
    for ( QListIterator <buttoninfo> it ( m_infos ); *it; ++it ) {
        if ((*it)-> m_button-> keycode ( ) == key )
            return *it;
    }
    return 0;
}

void ButtonSettings::keyPressEvent ( QKeyEvent *e )
{
    buttoninfo *bi = buttonInfoForKeycode ( e-> key ( ));

    if ( bi && !e-> isAutoRepeat ( )) {
        m_timer-> stop ( );
        m_last_button = bi;
        m_timer-> start ( ODevice::inst ( )-> buttonHoldTime ( ), true );
    }
    else
        QDialog::keyPressEvent ( e );
}

void ButtonSettings::keyReleaseEvent ( QKeyEvent *e )
{
    buttoninfo *bi = buttonInfoForKeycode ( e-> key ( ));

    if ( bi && !e-> isAutoRepeat ( ) && m_timer-> isActive ( )) {
        m_timer-> stop ( );
        edit ( bi, false );
    }
    else
        QDialog::keyReleaseEvent ( e );
}

void ButtonSettings::keyTimeout ( )
{
    if ( m_last_button ) {
        edit ( m_last_button, true );
        m_last_button = false;
    }
}

void ButtonSettings::edit ( buttoninfo *bi, bool hold )
{

    if ( m_lock )
        return;
    m_lock = true;

    RemapDlg *d = new RemapDlg ( bi-> m_button, hold, this );

    if ( QPEApplication::execDialog ( d ) == QDialog::Accepted ) {


        if ( hold ) {
            bi-> m_hmsg = d-> message ( );
            bi-> m_hdirty = true;
        }
        else {
            bi-> m_pmsg = d-> message ( );
            bi-> m_pdirty = true;
        }

        updateLabels ( );
    }

    delete d;

    m_lock = false;
}

void ButtonSettings::accept ( )
{
    for ( QListIterator <buttoninfo> it ( m_infos ); *it; ++it ) {
        buttoninfo *bi = *it;

        if ( bi-> m_pdirty )
            ODevice::inst ( )-> remapPressedAction ( bi-> m_index, bi-> m_pmsg );
        if ( bi-> m_hdirty )
            ODevice::inst ( )-> remapHeldAction ( bi-> m_index, bi-> m_hmsg );
    }
    QDialog::accept ( );
}

void ButtonSettings::done ( int r )
{
    QDialog::done ( r );
    close ( );
}