// =========================================================================
// @author Leonardo Florez-Valencia (florez-l@javeriana.edu.co)
// =========================================================================

#include "FileDialog.h"

#include <QEvent>
#include <QListView>
#include <QPushButton>
#include <QTreeView>

// -------------------------------------------------------------------------
FileDialog::
FileDialog( QWidget* parent )
  : QFileDialog( parent )
{
  this->m_btnOpen = NULL;
  this->m_listView = NULL;
  this->m_treeView = NULL;
  this->m_selectedFiles.clear( );

  this->setOption( QFileDialog::DontUseNativeDialog, true );
  this->setFileMode( QFileDialog::Directory );
  QList< QPushButton* > btns = this->findChildren< QPushButton* >( );
  for( int i = 0; i < btns.size( ); ++i )
  {
    QString text = btns[ i ]->text( );
    if(
      text.toLower( ).contains( "open" ) ||
      text.toLower().contains( "choose" ) )
    {
      this->m_btnOpen = btns[i];
      break;

    } // fi

  } // rof
  if( !this->m_btnOpen )
    return;

  this->m_btnOpen->installEventFilter( this );
  this->m_btnOpen->disconnect( SIGNAL( clicked( ) ) );
  this->connect(
    this->m_btnOpen, SIGNAL( clicked( ) ), this, SLOT( chooseClicked( ) )
    );
  this->m_listView = findChild< QListView* >( "listView" );
  if( this->m_listView )
    this->m_listView->
      setSelectionMode( QAbstractItemView::ExtendedSelection );

  this->m_treeView = findChild< QTreeView* >( );
  if( this->m_treeView )
    this->m_treeView->
      setSelectionMode( QAbstractItemView::ExtendedSelection );
}

// -------------------------------------------------------------------------
QStringList FileDialog::
selectedFiles( )
{
  return( this->m_selectedFiles );
}

// -------------------------------------------------------------------------
bool FileDialog::
eventFilter( QObject* watched, QEvent* event )
{
  QPushButton* btn = qobject_cast< QPushButton* >( watched );
  if( btn )
    if( event->type( ) == QEvent::EnabledChange )
      if( !btn->isEnabled( ) )
        btn->setEnabled( true );
  return( this->QWidget::eventFilter( watched, event ) );
}

// -------------------------------------------------------------------------
void FileDialog::
chooseClicked( )
{
  QModelIndexList indexList =
    this->m_listView->selectionModel( )->selectedIndexes( );
  foreach( QModelIndex index, indexList )
    if( index.column( ) == 0 )
      this->m_selectedFiles.append(
        this->directory( ).absolutePath( ) +
        QDir::separator( ) +
        index.data( ).toString( )
        );
  this->QDialog::accept( );
}

// eof - $RCSfile$