/*
 *
 * $Id: k3bprojectburndialog.cpp 630454 2007-02-05 13:06:45Z trueg $
 * Copyright (C) 2003 Sebastian Trueg <trueg@k3b.org>
 *
 * This file is part of the K3b project.
 * Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
 *
 * 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.
 * See the file "COPYING" for the exact licensing terms.
 */


#include "k3bprojectburndialog.h"
#include "k3bdoc.h"
#include "k3bburnprogressdialog.h"
#include "k3bjob.h"
#include "k3btempdirselectionwidget.h"
#include "k3bwriterselectionwidget.h"
#include "k3bstdguiitems.h"
#include "k3bwritingmodewidget.h"
#include <k3bdevice.h>
#include <k3bdevicemanager.h>
#include <k3bglobals.h>
#include <k3bcore.h>

#include <tqstring.h>
#include <tqpushbutton.h>
#include <tqtooltip.h>
#include <tqwhatsthis.h>
#include <tqlayout.h>
#include <tqvbox.h>
#include <tqcheckbox.h>
#include <tqtabwidget.h>
#include <tqgroupbox.h>
#include <tqspinbox.h>
#include <tqlabel.h>

#include <klocale.h>
#include <kconfig.h>
#include <kmessagebox.h>
#include <kguiitem.h>
#include <kstdguiitem.h>
#include <kdebug.h>
#include <kglobal.h>
#include <kstandarddirs.h>
#include <kapplication.h>
#include <kiconloader.h>


K3bProjectBurnDialog::K3bProjectBurnDialog( K3bDoc* doc, TQWidget *parent, const char *name, bool modal, bool dvd )
  : K3bInteractionDialog( parent, name, i18n("Project"), TQString(), 
			  START_BUTTON|SAVE_BUTTON|CANCEL_BUTTON, START_BUTTON, 
			  "default " + doc->typeString() + " settings", modal ),
    m_writerSelectionWidget(0),
    m_tempDirSelectionWidget(0),
    m_dvd(dvd)
{
  m_doc = doc;

  /**
   * There is at least one scenario in which this is useful: change the volume id (or rename a file)
   * without explicit confirmation (by pressing enter for example). Then click the "burn" button.
   * The "focus out" event which results in a rename in the listviewitem will be processed after the
   * initialization of the burn dialog. Thus, the burn dialog will read the old volume id.
   */
  setDelayedInitialization( true );

  setButtonGui( SAVE_BUTTON,
		KStdGuiItem::close() );
  setButtonText( SAVE_BUTTON,
		i18n("Close"), 
		i18n("Save Settings and close"),
		i18n("Saves the settings to the project and closes the dialog.") );
  setButtonGui( CANCEL_BUTTON, KStdGuiItem::cancel() );
  setButtonText( CANCEL_BUTTON, 
		 i18n("Cancel"),
		 i18n("Discard all changes and close"),
		 i18n("Discards all changes made in the dialog and closes it.") );

  m_job = 0;
}


K3bProjectBurnDialog::~K3bProjectBurnDialog(){
}


void K3bProjectBurnDialog::init()
{
  readSettings();
//   if( !m_writerSelectionWidget->writerDevice() )
//     m_checkOnlyCreateImage->setChecked(true);
}


void K3bProjectBurnDialog::slotWriterChanged()
{
  slotToggleAll();
}


void K3bProjectBurnDialog::slotWritingAppChanged( int )
{
  slotToggleAll();
}


void K3bProjectBurnDialog::toggleAll()
{
  K3bDevice::Device* dev = m_writerSelectionWidget->writerDevice();
  if( dev ) {
    if( m_dvd ) {
      if( (dev->type() & (K3bDevice::DVDPR|K3bDevice::DVDPRW)) &&
	  !(dev->type() & (K3bDevice::DVDR|K3bDevice::DVDRW)) ) {
	// no simulation support for DVD+R(W) only drives
	m_checkSimulate->setChecked(false);
	m_checkSimulate->setEnabled(false);
      }
      else {
	m_checkSimulate->setEnabled(true);
      }
    }

    setButtonEnabled( START_BUTTON, true );
  }
  else
    setButtonEnabled( START_BUTTON, false );

  m_writingModeWidget->determineSupportedModesFromMedium( dev );

  m_writingModeWidget->setDisabled( m_checkOnlyCreateImage->isChecked() );
  m_checkSimulate->setDisabled( m_checkOnlyCreateImage->isChecked() );
  m_checkCacheImage->setDisabled( m_checkOnlyCreateImage->isChecked() );
  m_checkRemoveBufferFiles->setDisabled( m_checkOnlyCreateImage->isChecked() || !m_checkCacheImage->isChecked() );
  if( m_checkOnlyCreateImage->isChecked() ) {
    m_checkRemoveBufferFiles->setChecked(false);
    setButtonEnabled( START_BUTTON, true );
  }
  m_tempDirSelectionWidget->setDisabled( !m_checkCacheImage->isChecked() && !m_checkOnlyCreateImage->isChecked() );
  m_writerSelectionWidget->setDisabled( m_checkOnlyCreateImage->isChecked() );
  m_spinCopies->setDisabled( m_checkSimulate->isChecked() || m_checkOnlyCreateImage->isChecked() );

  if( !m_dvd ) {
    // we only support DAO with cdrdao
    if( m_writerSelectionWidget->writingApp() == K3b::CDRDAO )
      m_writingModeWidget->setSupportedModes( K3b::DAO );
  }

  if( m_checkOnlyCreateImage->isChecked() )
    setButtonText( START_BUTTON, 
		   i18n("Start"),
		   i18n("Start the image creation") );
  else
    setButtonText( START_BUTTON, i18n("Burn"),
		   i18n("Start the burning process") );
}


int K3bProjectBurnDialog::execBurnDialog( bool burn )
{
  if( burn && m_job == 0 ) {
    setButtonShown( START_BUTTON, true );
    setDefaultButton( START_BUTTON );
  }
  else {
    setButtonShown( START_BUTTON, false );
    setDefaultButton( SAVE_BUTTON );
  }

  return K3bInteractionDialog::exec(false);
}


void K3bProjectBurnDialog::slotSaveClicked()
{
  saveSettings();
  done( Saved );
}


void K3bProjectBurnDialog::slotCancelClicked()
{
  done( Canceled );
}


void K3bProjectBurnDialog::slotStartClicked()
{
  saveSettings();

  if( m_tempDirSelectionWidget ) {
    if( !doc()->onTheFly() || doc()->onlyCreateImages() ) {
      //
      // check if the temp dir exists
      //
      TQString tempDir = m_tempDirSelectionWidget->tempDirectory();
      if( !TQFile::exists( tempDir ) ) {
	if( KMessageBox::warningYesNo( this, i18n("Image folder '%1' does not exist. Do you want K3b to create it?").tqarg( tempDir ) )
	    == KMessageBox::Yes ) {
	  if( !KStandardDirs::makeDir( tempDir ) ) {
	    KMessageBox::error( this, i18n("Failed to create folder '%1'.").tqarg( tempDir ) );
	    return;
	  }
	}
	else
	  return;
      }

      //    
      // check if enough space in tempdir if not on-the-fly
      //
      if( doc()->size()/1024 > m_tempDirSelectionWidget->freeTempSpace() ) {
	if( KMessageBox::warningContinueCancel( this, i18n("There seems to be not enough free space in temporary directory. "
							   "Write anyway?") ) == KMessageBox::Cancel )
	  return;
      }
    }
  }

  K3bJobProgressDialog* dlg = 0;
  if( m_checkOnlyCreateImage && m_checkOnlyCreateImage->isChecked() )
    dlg = new K3bJobProgressDialog( parentWidget() );
  else
    dlg = new K3bBurnProgressDialog( parentWidget() );

  m_job = m_doc->newBurnJob( dlg );

  if( m_writerSelectionWidget )
    m_job->setWritingApp( m_writerSelectionWidget->writingApp() );
  prepareJob( m_job );

  if( !exitLoopOnHide() )
    hide();

  dlg->startJob(m_job);

  kdDebug() << "(K3bProjectBurnDialog) job done. cleaning up." << endl;

  delete m_job;
  m_job = 0;
  delete dlg;

  done( Burn );
}


void K3bProjectBurnDialog::prepareGui()
{
  TQVBoxLayout* mainLay = new TQVBoxLayout( mainWidget() );
  mainLay->setAutoAdd( true );
  mainLay->setMargin( 0 );
  mainLay->setSpacing( KDialog::spacingHint() );

  m_writerSelectionWidget = new K3bWriterSelectionWidget( mainWidget() );
  m_writerSelectionWidget->setWantedMediumType( m_dvd ? K3bDevice::MEDIA_WRITABLE_DVD : K3bDevice::MEDIA_WRITABLE_CD );
  m_writerSelectionWidget->setWantedMediumState( K3bDevice::STATE_EMPTY );

  m_tabWidget = new TQTabWidget( mainWidget() );

  TQWidget* w = new TQWidget( m_tabWidget );
  m_tabWidget->addTab( w, i18n("Writing") );

  TQGroupBox* groupWritingMode = new TQGroupBox( 1, Qt::Vertical, i18n("Writing Mode"), w );
  groupWritingMode->setInsideMargin( marginHint() );
  m_writingModeWidget = new K3bWritingModeWidget( groupWritingMode );

  m_optionGroup = new TQGroupBox( 0, Qt::Vertical, i18n("Settings"), w );
  m_optionGroup->tqlayout()->setMargin(0);
  m_optionGroup->tqlayout()->setSpacing(0);
  m_optionGroupLayout = new TQVBoxLayout( m_optionGroup->tqlayout() );
  m_optionGroupLayout->setMargin( KDialog::marginHint() );
  m_optionGroupLayout->setSpacing( KDialog::spacingHint() );

  // add the options
  m_checkCacheImage = K3bStdGuiItems::createCacheImageCheckbox( m_optionGroup );
  m_checkSimulate = K3bStdGuiItems::simulateCheckbox( m_optionGroup );
  m_checkRemoveBufferFiles = K3bStdGuiItems::removeImagesCheckbox( m_optionGroup );
  m_checkOnlyCreateImage = K3bStdGuiItems::onlyCreateImagesCheckbox( m_optionGroup );

  m_optionGroupLayout->addWidget(m_checkSimulate);
  m_optionGroupLayout->addWidget(m_checkCacheImage);
  m_optionGroupLayout->addWidget(m_checkOnlyCreateImage);
  m_optionGroupLayout->addWidget(m_checkRemoveBufferFiles);

  TQGroupBox* groupCopies = new TQGroupBox( 2, Qt::Horizontal, i18n("Copies"), w );
  groupCopies->setInsideSpacing( spacingHint() );
  groupCopies->setInsideMargin( marginHint() );
  TQLabel* pixLabel = new TQLabel( groupCopies );
  pixLabel->setPixmap( SmallIcon( "cdcopy", KIcon::SizeMedium ) );
  pixLabel->setScaledContents( false );
  m_spinCopies = new TQSpinBox( 1, 999, 1, groupCopies );

  // arrange it
  TQGridLayout* grid = new TQGridLayout( w );
  grid->setMargin( KDialog::marginHint() );
  grid->setSpacing( KDialog::spacingHint() );

  grid->addWidget( groupWritingMode, 0, 0 );
  grid->addMultiCellWidget( m_optionGroup, 0, 2, 1, 1 );
  grid->addWidget( groupCopies, 2, 0 );
  //  grid->addMultiCellWidget( m_tempDirSelectionWidget, 1, 3, 1, 1 );
  grid->setRowStretch( 1, 1 );
  grid->setColStretch( 1, 1 );

  TQWidget* tempW = new TQWidget( m_tabWidget );
  grid = new TQGridLayout( tempW );
  grid->setMargin( KDialog::marginHint() );
  grid->setSpacing( KDialog::spacingHint() );
  m_tabWidget->addTab( tempW, i18n("Image") );
  m_tempDirSelectionWidget = new K3bTempDirSelectionWidget( tempW );
  grid->addWidget( m_tempDirSelectionWidget, 0, 0 );
  m_tempDirSelectionWidget->setNeededSize( doc()->size() );

  // tab order
  setTabOrder( m_writerSelectionWidget, m_writingModeWidget );
  setTabOrder( m_writingModeWidget, groupCopies );
  setTabOrder( groupCopies, m_optionGroup );

  // some default connections that should always be useful
  connect( m_writerSelectionWidget, TQT_SIGNAL(writerChanged()), this, TQT_SLOT(slotWriterChanged()) );
  connect( m_writerSelectionWidget, TQT_SIGNAL(writerChanged(K3bDevice::Device*)), 
	   m_writingModeWidget, TQT_SLOT(determineSupportedModesFromMedium(K3bDevice::Device*)) );
  connect( m_writerSelectionWidget, TQT_SIGNAL(writingAppChanged(int)), this, TQT_SLOT(slotWritingAppChanged(int)) );
  connect( m_checkCacheImage, TQT_SIGNAL(toggled(bool)), this, TQT_SLOT(slotToggleAll()) );
  connect( m_checkSimulate, TQT_SIGNAL(toggled(bool)), this, TQT_SLOT(slotToggleAll()) );
  connect( m_checkOnlyCreateImage, TQT_SIGNAL(toggled(bool)), this, TQT_SLOT(slotToggleAll()) );
  connect( m_writingModeWidget, TQT_SIGNAL(writingModeChanged(int)), this, TQT_SLOT(slotToggleAll()) );
}


void K3bProjectBurnDialog::addPage( TQWidget* page, const TQString& title )
{
  m_tabWidget->addTab( page, title );
}


void K3bProjectBurnDialog::saveSettings()
{
  m_doc->setDummy( m_checkSimulate->isChecked() );
  m_doc->setOnTheFly( !m_checkCacheImage->isChecked() );
  m_doc->setOnlyCreateImages( m_checkOnlyCreateImage->isChecked() );
  m_doc->setRemoveImages( m_checkRemoveBufferFiles->isChecked() );
  m_doc->setSpeed( m_writerSelectionWidget->writerSpeed() );
  m_doc->setBurner( m_writerSelectionWidget->writerDevice() );
  m_doc->setWritingMode( m_writingModeWidget->writingMode() );
  m_doc->setWritingApp( m_writerSelectionWidget->writingApp() );
  m_doc->setCopies( m_spinCopies->value() );
}


void K3bProjectBurnDialog::readSettings()
{
  m_checkSimulate->setChecked( doc()->dummy() );
  m_checkCacheImage->setChecked( !doc()->onTheFly() );
  m_checkOnlyCreateImage->setChecked( m_doc->onlyCreateImages() );
  m_checkRemoveBufferFiles->setChecked( m_doc->removeImages() );
  m_writingModeWidget->setWritingMode( doc()->writingMode() );
  m_writerSelectionWidget->setWriterDevice( doc()->burner() );
  m_writerSelectionWidget->setSpeed( doc()->speed() );
  m_writerSelectionWidget->setWritingApp( doc()->writingApp() );
  m_spinCopies->setValue( m_doc->copies() );
}


void K3bProjectBurnDialog::saveUserDefaults( KConfigBase* c )
{
  m_writingModeWidget->saveConfig( c );
  c->writeEntry( "simulate", m_checkSimulate->isChecked() );
  c->writeEntry( "on_the_fly", !m_checkCacheImage->isChecked() );
  c->writeEntry( "remove_image", m_checkRemoveBufferFiles->isChecked() );
  c->writeEntry( "only_create_image", m_checkOnlyCreateImage->isChecked() );
  c->writeEntry( "copies", m_spinCopies->value() );

  m_tempDirSelectionWidget->saveConfig( c );
  m_writerSelectionWidget->saveConfig( c );
}


void K3bProjectBurnDialog::loadUserDefaults( KConfigBase* c )
{
  m_writingModeWidget->loadConfig( c );
  m_checkSimulate->setChecked( c->readBoolEntry( "simulate", false ) );
  m_checkCacheImage->setChecked( !c->readBoolEntry( "on_the_fly", true ) );
  m_checkRemoveBufferFiles->setChecked( c->readBoolEntry( "remove_image", true ) );
  m_checkOnlyCreateImage->setChecked( c->readBoolEntry( "only_create_image", false ) );
  m_spinCopies->setValue( c->readNumEntry( "copies", 1 ) );

  m_tempDirSelectionWidget->readConfig( c );
  m_writerSelectionWidget->loadConfig( c );
}


void K3bProjectBurnDialog::loadK3bDefaults()
{
  m_writerSelectionWidget->loadDefaults();
  m_writingModeWidget->setWritingMode( K3b::WRITING_MODE_AUTO );
  m_checkSimulate->setChecked( false );
  m_checkCacheImage->setChecked( false );
  m_checkRemoveBufferFiles->setChecked( true );
  m_checkOnlyCreateImage->setChecked( false );
  m_spinCopies->setValue( 1 );

  if( m_tempDirSelectionWidget->selectionMode() == K3bTempDirSelectionWidget::DIR )
    m_tempDirSelectionWidget->setTempPath( K3b::defaultTempPath() );
  else
    m_tempDirSelectionWidget->setTempPath( K3b::defaultTempPath() + doc()->name() + ".iso" );
}

#include "k3bprojectburndialog.moc"