/******************************************************************************
*
* Copyright (C) 2002 Hugo PEREIRA <mailto: hugo.pereira@free.fr>
*
* This 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.
*
* This software 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 program.  If not, see <http://www.gnu.org/licenses/>.
*
*******************************************************************************/

#include "PlacesWidget.h"
#include "PlacesWidget_p.h"

#include "BaseFileIconProvider.h"
#include "BaseContextMenu.h"
#include "BaseIconNames.h"
#include "DefaultFolders.h"
#include "DragMonitor.h"
#include "GridLayout.h"
#include "GridLayoutItem.h"
#include "IconEngine.h"
#include "IconSizeMenu.h"
#include "PathEditor.h"
#include "QtUtil.h"
#include "Singleton.h"
#include "TimeStamp.h"
#include "Util.h"
#include "WarningDialog.h"
#include "XmlDocument.h"
#include "XmlOptions.h"

#include <QApplication>
#include <QDrag>
#include <QListView>
#include <QMimeData>
#include <QPainter>
#include <QUrl>

namespace Xml
{ static const QString Flags = "flags"; };

namespace Private
{
    //___________________________________________________________________
    LocalFileInfo::LocalFileInfo( const QDomElement& element ):
        BaseFileInfo( element )
    {
        Debug::Throw( "LocalFileInfo::LocalFileInfo (dom).\n" );

        // parse attributes
        auto attributes( element.attributes() );
        for( int i=0; i<attributes.count(); i++ )
        {
            auto attribute( attributes.item( i ).toAttr() );
            if( attribute.isNull() ) continue;
            if( attribute.name() == Xml::Flags ) setFlags( (Flags) attribute.value().toInt() );
        }

    }

    //________________________________________________________________
    QDomElement LocalFileInfo::domElement( QDomDocument& document ) const
    {
        Debug::Throw( "BaseFileInfo::DomElement.\n" );
        auto out( BaseFileInfo::domElement( document ) );
        if( flags_ ) out.setAttribute( Xml::Flags, flags_ );
        return out;
    }

    //___________________________________________________________________
    LocalFileInfo::List LocalFileInfo::Helper::list( const QDomElement& element )
    {

        LocalFileInfo::List out;

        // read records
        for( auto node = element.firstChild(); !node.isNull(); node = node.nextSibling() )
        {
            auto element = node.toElement();
            if( element.isNull() ) continue;

            // children
            if( element.tagName() == Xml::FileInfo )
            {
                LocalFileInfo fileInfo( element );
                if( fileInfo.file().isEmpty() ) fileInfo.setFlag( LocalFileInfo::Separator, true );
                out.append( fileInfo );
            }
        }

        return out;

    }

    //___________________________________________________________________
    QDomElement LocalFileInfo::Helper::domElement( const LocalFileInfo::List& list, QDomDocument& document )
    {
        // create main element
        auto top = document.createElement( Xml::FileInfoList );
        for( const auto& fileInfo:list )
        { top.appendChild( fileInfo.domElement( document ) );  }
        return top;
    }

    //___________________________________________________________________
    const QString PlacesWidgetItem::MimeType( "internal/places-widget-item" );

    //___________________________________________________________________
    PlacesWidgetItem::PlacesWidgetItem( QWidget* parent ):
        QAbstractButton( parent )
    {
        Debug::Throw( "PathEditorItem::PathEditorItem.\n" );
        setAttribute( Qt::WA_Hover );

        // drag
        dragMonitor_ = new DragMonitor( this );
        dragMonitor_->setDragEnabled( false );
        connect( dragMonitor_, SIGNAL(dragStarted(QPoint)), SLOT(_startDrag(QPoint)) );

        // configuration
        connect( Base::Singleton::get().application(), SIGNAL(configurationChanged()), SLOT(_updateConfiguration()) );
        _updateConfiguration();

    }

    //___________________________________________________________________
    void PlacesWidgetItem::updateMinimumSize()
    {

        // separators
        if( isSeparator() )
        {
            setMinimumSize( QSize( 0, 3 ) );
            return;
        }

        // get icon size
        QSize size( 0, 0 );

        // icon
        if( !icon().isNull() )
        {
            size.rwidth() += iconSize().width();
            size.rheight() = qMax<int>( size.height(), iconSize().height() );
        }

        // text
        if( !text().isEmpty() )
        {
            QSize textSize = fontMetrics().boundingRect( text() ).size();
            size.rwidth() += textSize.width();
            size.rheight() = qMax<int>( size.height(), textSize.height() );
        }

        QStyleOptionFrameV3 option;
        option.initFrom( this );
        size = style()->sizeFromContents( QStyle::CT_ItemViewItem, &option, size, this );

        // store
        setMinimumSize( size );

    }

    //___________________________________________________________________
    bool PlacesWidgetItem::event( QEvent* event )
    {

        switch( event->type() )
        {

            case QEvent::HoverEnter: mouseOver_ = true; break;
            case QEvent::HoverLeave: mouseOver_ = false; break;
            default: break;
        }

        return QAbstractButton::event( event );

    }

    //_______________________________________________
    void PlacesWidgetItem::_startDrag( QPoint dragOrigin )
    {

        Debug::Throw( "PlacesWidgetItem::_startDrag.\n" );

        // start drag
        auto drag = new QDrag(this);
        auto mimeData = new QMimeData;

        mimeData->setData( PlacesWidgetItem::MimeType, nullptr );
        drag->setMimeData( mimeData );

        // create drag pixmap
        QPixmap pixmap( size() );
        pixmap.fill( Qt::transparent );
        QPainter painter( &pixmap );
        _paint( &painter );

        drag->setPixmap( pixmap );
        drag->setHotSpot( QPoint( (dragOrigin-rect().topLeft()).x(), 0 ) );

        drag->start();

    }

    //___________________________________________________________________
    void PlacesWidgetItem::paintEvent( QPaintEvent* event )
    {
        QPainter painter( this );
        painter.setClipRegion( event->region() );
        _paint( &painter );
        painter.end();
    }

    //___________________________________________________________________
    void PlacesWidgetItem::_paint( QPainter* painter )
    {

        // render separators
        if( isSeparator() )
        {

            QStyleOptionFrameV3 option;
            option.initFrom( this );
            option.frameShape = QFrame::HLine;
            style()->drawControl( QStyle::CE_ShapedFrame, &option, painter, this );
            return;

        }

        // render mouse over
        const bool dragInProgress( dragMonitor_->isDragInProgress() );
        if( mouseOver_ || (valid_ && ( hasFocus_ || dragInProgress ) ) )
        {

            QStyleOptionViewItemV4 option;
            option.initFrom( this );
            option.showDecorationSelected = true;
            option.rect = rect();
            if( mouseOver_ ) option.state |= QStyle::State_MouseOver;
            if( valid_ && ( hasFocus_ || dragInProgress ) ) option.state |= QStyle::State_Selected;
            style()->drawPrimitive( QStyle::PE_PanelItemViewItem, &option, painter, itemView_ );

        }

        // save layout direction
        const bool isRightToLeft( qApp->isRightToLeft() );

        // get margins from style
        QStyleOptionFrameV3 option;
        option.initFrom( this );
        const QSize size( style()->sizeFromContents( QStyle::CT_ItemViewItem, &option, QSize(0,0), this ) );
        const int marginWidth( qMax( size.width()/2, 2 ) );
        const int marginHeight( qMax( size.height()/2, 2 ) );

        // render text
        if( !text().isEmpty() )
        {

            QRect textRect( rect().adjusted( marginWidth, marginHeight, -marginWidth, -marginHeight ) );
            if( !icon().isNull() )
            {

                if( isRightToLeft ) textRect.setRight( textRect.right() - iconSize().width() - 2*marginWidth );
                else textRect.setLeft( textRect.left() + iconSize().width() + 2*marginWidth );

            }

            // draw text
            painter->setFont( font() );

            // change text color if focus
            if( valid_ && ( hasFocus_ || dragInProgress ) ) painter->setPen( palette().color( QPalette::HighlightedText ) );
            else painter->setPen( palette().color( ( valid_ && !hasFlag( Private::LocalFileInfo::Hidden ) ) ? QPalette::Normal:QPalette::Disabled, QPalette::WindowText  ) );

            int textFlags( Qt::AlignVCenter | (isRightToLeft ? Qt::AlignRight : Qt::AlignLeft ) | Qt::TextHideMnemonic );
            painter->drawText( QRectF( textRect ), textFlags, text() );

        }

        // render icon
        if( !icon().isNull() )
        {
            QRect iconRect( rect().adjusted( marginWidth, marginHeight, -marginWidth, -marginHeight ) );
            if( !text().isEmpty() )
            {
                if( isRightToLeft ) iconRect.setLeft( iconRect.right() - iconSize().width() );
                else iconRect.setRight( iconRect.left() + iconSize().width() );
            }

            // get pixmap
            const CustomPixmap pixmap( icon().pixmap( iconSize(), ( valid_ && !hasFlag( Private::LocalFileInfo::Hidden ) ) ? QIcon::Normal:QIcon::Disabled ) );
            const QPoint position(
                iconRect.x() + 0.5*(iconRect.width() - pixmap.width()/pixmap.devicePixelRatio() ),
                iconRect.y() + 0.5*(iconRect.height() - pixmap.height()/pixmap.devicePixelRatio() ) );

            painter->drawPixmap( position, pixmap );

        }

    }

    //___________________________________________________________________
    void PlacesWidgetItem::_updateConfiguration()
    {

        // icon size
        if( XmlOptions::get().contains( "PLACES_ICON_SIZE" ) )
        {
            int iconSize( XmlOptions::get().get<int>( "PLACES_ICON_SIZE" ) );
            if( iconSize > 0 )
            {
                setIconSize( QSize( iconSize, iconSize ) );
                updateMinimumSize();
            }
        }

    }

    //___________________________________________________________________
    PlacesWidgetItemDialog::PlacesWidgetItemDialog( QWidget* parent ):
        CustomDialog( parent, OkButton|CancelButton|Separator )
    {
        // layout
        auto layout = new GridLayout;
        layout->setMargin(0);
        layout->setMaxCount(2);
        layout->setColumnAlignment( 0, Qt::AlignVCenter|Qt::AlignRight );

        mainLayout().addLayout( layout );

        QLabel* label;
        layout->addWidget( label = new QLabel( tr("Label:"), this ) );
        layout->addWidget( nameEditor_ = new LineEditor( this ) );
        label->setBuddy( nameEditor_ );

        nameEditor_->setPlaceholderText( tr("Enter descriptive label here") );

        layout->addWidget( label = new QLabel( tr("Location:"), this ) );
        layout->addWidget( fileEditor_ = new BrowsedLineEditor( this ) );
        label->setBuddy( fileEditor_ );
        fileEditor_->setAcceptMode( QFileDialog::AcceptOpen );
        fileEditor_->setFileMode( QFileDialog::Directory );

        layout->addWidget( remoteCheckBox_ = new QCheckBox( tr("Remote location"), this ), 2, 1, 1, 1 );

    }

    //___________________________________________________________________
    PlacesToolTipWidget::PlacesToolTipWidget(  QWidget* parent ):
        BaseToolTipWidget( parent ),
        pixmapSize_( 96 ),
        mask_( Default )
    {

        Debug::Throw(  "PlacesToolTipWidget::PlacesToolTipWidget.\n" );

        // layout
        auto hLayout = new QHBoxLayout;
        hLayout->setMargin( 10 );
        hLayout->setSpacing( 10 );
        setLayout( hLayout );

        hLayout->addWidget( iconLabel_ = new QLabel( this ) );
        iconLabel_->setAlignment( Qt::AlignHCenter|Qt::AlignTop );

        auto vLayout = new QVBoxLayout;
        vLayout->setMargin( 0 );
        vLayout->setSpacing( 5 );
        hLayout->addLayout( vLayout );

        // file
        vLayout->addWidget( nameLabel_ = new QLabel( this ) );
        nameLabel_->setAlignment( Qt::AlignCenter );
        nameLabel_->setFont( QtUtil::titleFont( nameLabel_->font() ) );
        nameLabel_->setMargin( 1 );
        nameLabel_->setBuddy( this );

        // separator
        vLayout->addWidget( separator_ = new QFrame( this ) );
        separator_->setFrameStyle( QFrame::HLine );

        // grid layout
        auto gridLayout = new GridLayout;
        gridLayout->setMaxCount( 2 );
        gridLayout->setColumnAlignment( 0, Qt::AlignVCenter|Qt::AlignRight );
        gridLayout->setColumnAlignment( 1, Qt::AlignVCenter|Qt::AlignLeft );
        gridLayout->setMargin( 0 );
        gridLayout->setSpacing( 5 );
        vLayout->addLayout( gridLayout );

        // items
        ( pathItem_ = new GridLayoutItem( this, gridLayout ) )->setKey( tr( "Path:" ) );
        ( lastModifiedItem_ = new GridLayoutItem( this, gridLayout ) )->setKey( tr( "Modified:" ) );
        ( userItem_ = new GridLayoutItem( this, gridLayout ) )->setKey( tr( "Owner:" ) );
        ( groupItem_ = new GridLayoutItem( this, gridLayout ) )->setKey( tr( "Group:" ) );
        ( permissionsItem_ = new GridLayoutItem( this, gridLayout ) )->setKey( tr( "Permissions:" ) );

        // add stretch
        vLayout->addStretch( 1 );

        // configuration
        connect( Base::Singleton::get().application(), SIGNAL(configurationChanged()), SLOT(_updateConfiguration()) );
        _updateConfiguration();

    }

    //_______________________________________________________
    void PlacesToolTipWidget::setFileInfo( const QString& name, const BaseFileInfo& fileInfo, const QIcon& icon )
    {

        // local storage
        name_ = name;
        icon_ = icon;
        fileInfo_ = fileInfo;

        // update icon
        if( !icon.isNull() )
        {

            iconLabel_->setPixmap( icon.pixmap( QSize( pixmapSize_, pixmapSize_ ) ) );
            iconLabel_->show();

        } else iconLabel_->hide();

        nameLabel_->show();
        nameLabel_->setText( name );
        separator_->show();

        if( !fileInfo.file().isEmpty() )
        {

            // type
            if( fileInfo.isRemote() ) pathItem_->setText( tr( "%1 (remote)" ).arg( fileInfo.file() ) );
            else pathItem_->setText( fileInfo.file() );

            // last modified
            if( (mask_&Modified) && TimeStamp( fileInfo.lastModified() ).isValid() )
            {

                lastModifiedItem_->setText( TimeStamp( fileInfo.lastModified() ).toString() );

            } else lastModifiedItem_->hide();

            // user
            if( (mask_&User) && !fileInfo.user().isEmpty() ) userItem_->setText( fileInfo.user() );
            else userItem_->hide();

            // group
            if( (mask_&Group) && !fileInfo.group().isEmpty() ) groupItem_->setText( fileInfo.group() );
            else groupItem_->hide();

            // permissions
            QString permissions;
            if( (mask_&Permissions) && !( permissions = fileInfo.permissionsString() ).isEmpty() ) permissionsItem_->setText( permissions );
            else permissionsItem_->hide();

        } else {

            // items
            pathItem_->hide();
            lastModifiedItem_->hide();
            userItem_->hide();
            groupItem_->hide();
            permissionsItem_->hide();
        }

        adjustSize();

    }

    //_____________________________________________
    void PlacesToolTipWidget::_updateConfiguration()
    {
        Debug::Throw( "PlacesToolTipWidget::_updateConfiguration.\n" );
        if( XmlOptions::get().contains( "TOOLTIPS_PIXMAP_SIZE" ) ) setPixmapSize( XmlOptions::get().get<int>( "TOOLTIPS_PIXMAP_SIZE" ) );
        if( XmlOptions::get().contains( "TOOLTIPS_MASK" ) ) setMask( Types(XmlOptions::get().get<int>( "TOOLTIPS_MASK" )) );
    }

}

//___________________________________________________________________
PlacesWidget::PlacesWidget( QWidget* parent ):
    QWidget( parent ),
    Counter( "PlacesWidget::PlacesWidget" )
{

    Debug::Throw( "PlacesWidget::PlacesWidget.\n" );

    // some styles require an item view passed to painting method to have proper selection rendered in items
    itemView_ = new QListView( this );
    itemView_->hide();

    // accept drops
    setAcceptDrops( true );

    // actions
    _installActions();

    // main layout
    auto vLayout = new QVBoxLayout;
    vLayout->setMargin(2);
    vLayout->setSpacing(0);
    setLayout( vLayout );

    // button layout
    buttonLayout_ = new VBoxLayout;
    buttonLayout_->setMargin(0);
    buttonLayout_->setSpacing(0);

    vLayout->addLayout( buttonLayout_ );
    vLayout->addStretch( 1 );

    // tooltip widget
    toolTipWidget_ = new Private::PlacesToolTipWidget( this );

    // button group
    group_ = new QButtonGroup( this );
    group_->setExclusive( false );
    connect( group_, SIGNAL(buttonClicked(QAbstractButton*)), SLOT(_buttonClicked(QAbstractButton*)) );
    connect( group_, SIGNAL(buttonPressed(QAbstractButton*)), SLOT(_updateFocus(QAbstractButton*)) );

    // icon sizes
    iconSizeMenu_ = new IconSizeMenu( this );
    connect( iconSizeMenu_, SIGNAL(iconSizeSelected(IconSize::Size)), SLOT(_updateIconSize(IconSize::Size)) );

    // file system watcher
    connect( &fileSystemWatcher_, SIGNAL(directoryChangedDelayed(QString)), SLOT(_updateItems()) );

    // context menu
    setContextMenuPolicy( Qt::CustomContextMenu );
    connect( this, SIGNAL(customContextMenuRequested(QPoint)), SLOT(_updateContextMenu(QPoint)) );

    // configuration
    connect( Base::Singleton::get().application(), SIGNAL(configurationChanged()), SLOT(_updateConfiguration()) );
    connect( qApp, SIGNAL(aboutToQuit()), SLOT(_saveConfiguration()) );
    _updateConfiguration();

}

//______________________________________________________________________
void PlacesWidget::setIconProvider( BaseFileIconProvider* provider )
{

    Debug::Throw( "PlacesWidget::setIconProvider.\n" );

    // set provider
    iconProvider_ = provider;

    // update icons for existing items
    for( const auto& item:items_ )
    {
        if( item->icon().isNull() )
        { item->setIcon( iconProvider_->icon( item->fileInfo() ) ); }
    }

}

//______________________________________________________________________
BaseFileInfo::List PlacesWidget::items() const
{
    BaseFileInfo::List out;
    std::transform( items_.begin(), items_.end(), std::back_inserter( out ), []( Private::PlacesWidgetItem* item ) { return item->fileInfo(); } );
    return out;
}

//______________________________________________________________________
bool PlacesWidget::setItemIsValid( const BaseFileInfo& fileInfo, bool value )
{
    Debug::Throw() << "PlacesWidget::setItemIsValid - fileInfo: " << fileInfo << " value: " << value << endl;
    bool changed( false );
    for( const auto& item:items_ )
    {

        if( item->fileInfo().file() == fileInfo.file() && item->fileInfo().location() == fileInfo.location() )
        { changed |= item->setIsValid( value ); }

    }

    return changed;
}

//_______________________________________________________
bool PlacesWidget::eventFilter( QObject* object, QEvent* event )
{

    // this is not really working
    switch( event->type() )
    {

        case QEvent::HoverEnter:
        {

            // update tooltip content
            auto item( qobject_cast<Private::PlacesWidgetItem*>( object ) );
            const auto name( item->text() );
            const auto icon( item->icon() );
            auto fileInfo( item->fileInfo() );
            if( fileInfo.isLocal() ) fileInfo.update();

            toolTipWidget_->setFileInfo( name, fileInfo, icon );

            // rect
            toolTipWidget_->setIndexRect(
                item->geometry().
                translated( mapToGlobal( QPoint(0,0) ) ) );

            // show
            toolTipWidget_->showDelayed();
            break;

        }

        case QEvent::HoverLeave:
        {
            toolTipWidget_->hide();
            break;
        }

        default: break;

    }

    return false;
}

//______________________________________________________________________
void PlacesWidget::clear()
{
    // delete all items
    for( const auto& item:items_ )
    {
        // remove from group and delete later
        group_->removeButton( item );
        item->hide();
        item->deleteLater();
    }

    // clear file system watcher
    if( !fileSystemWatcher_.directories().isEmpty() )
    { fileSystemWatcher_.removePaths( fileSystemWatcher_.directories() ); }

    // clear items
    items_.clear();

}

//______________________________________________________________________
void PlacesWidget::add( const BaseFileInfo& fileInfo )
{ add( iconProvider_ ? iconProvider_->icon( fileInfo ):QIcon(), fileInfo.file().localName(), fileInfo ); }

//______________________________________________________________________
void PlacesWidget::add( const QString& name, const BaseFileInfo& fileInfo )
{ add( iconProvider_ ? iconProvider_->icon( fileInfo ):QIcon(), name, fileInfo ); }

//___________________________________________________________________
void PlacesWidget::add( const QIcon& icon, const QString& name, const BaseFileInfo& fileInfo )
{

    Debug::Throw( "PlacesWidget::add.\n" );

    // create new item
    auto item = new Private::PlacesWidgetItem( this );
    item->installEventFilter( this );
    item->setIcon( icon );
    item->setText( name );
    item->setFileInfo( fileInfo );
    item->setItemView( itemView_ );

    // set item validity
    if( !fileInfo.file().isEmpty() )
    {
        if( fileInfo.isLocal() )
        {

            const bool exists( fileInfo.file().exists() );
            item->setIsValid( exists );
            if( exists && !fileSystemWatcher_.directories().contains( fileInfo.file() ) )
            { fileSystemWatcher_.addPath( fileInfo.file() ); }

        } else emit remoteItemAdded( fileInfo );

    }

    // add to button group, list of items and layout
    group_->addButton( item );
    buttonLayout_->addWidget( item );
    items_.append( item );

    // drag state
    _updateDragState();

}

//______________________________________________________________________
void PlacesWidget::insert( int position, const BaseFileInfo& fileInfo )
{
    const QString alias( fileInfo.hasAlias() ? fileInfo.alias():fileInfo.file().localName() );
    insert( position, iconProvider_ ? iconProvider_->icon( fileInfo ):QIcon(), alias, fileInfo );
}

//______________________________________________________________________
void PlacesWidget::insert( int position, const QString& name, const BaseFileInfo& fileInfo )
{ insert( position, iconProvider_ ? iconProvider_->icon( fileInfo ):QIcon(), name, fileInfo ); }

//___________________________________________________________________
void PlacesWidget::insert( int position, const QIcon& icon, const QString& constName, const BaseFileInfo& fileInfo )
{

    Debug::Throw( "PlacesWidget::insert.\n" );

    QString name( constName );
    if( name.isEmpty() ) name = "Root";

    if( position >= items_.size() )
    {
        add( icon, name, fileInfo );
        return;
    }

    if( position < 0 ) position = 0;

    // create new item
    auto item = new Private::PlacesWidgetItem( this );
    item->installEventFilter( this );
    item->setIcon( icon );
    item->setText( name );
    item->setFileInfo( fileInfo );
    item->setItemView( itemView_ );

    // set item validity
    if( !fileInfo.file().isEmpty() )
    {
        if( fileInfo.isLocal() )
        {

            const bool exists( fileInfo.file().exists() );
            item->setIsValid( exists );
            if( exists && !fileSystemWatcher_.directories().contains( fileInfo.file() ) )
            { fileSystemWatcher_.addPath( fileInfo.file() ); }

        } else emit remoteItemAdded( fileInfo );

    }

    // add to button group, list of items and layout
    group_->addButton( item );
    buttonLayout_->insertWidget( position, item );
    items_.insert( position, item );

    // drag state
    _updateDragState();

}

//___________________________________________________________________
void PlacesWidget::_buttonClicked( QAbstractButton* button )
{

    Debug::Throw( "PlacesWidget::_buttonClicked.\n" );
    auto currentItem( qobject_cast<Private::PlacesWidgetItem*>( button ) );
    if( currentItem && !currentItem->isSeparator() && currentItem->isValid() ) emit itemSelected( currentItem->fileInfo() );

}

//___________________________________________________________________
void PlacesWidget::_updateFocus( QAbstractButton* button )
{

    Debug::Throw( "PlacesWidget::_updateFocus.\n" );

    // cas button to item
    auto currentItem( qobject_cast<Private::PlacesWidgetItem*>( button ) );
    if( currentItem ) currentItem->setFocus( true );

    // disable focus for all other buttons
    for( const auto& item:items_ )
    { if( item != currentItem ) item->setFocus( false ); }

}

//______________________________________________________________________
void PlacesWidget::_updateContextMenu( const QPoint& position )
{

    Debug::Throw( "PlacesWidget::_updateContextMenu.\n" );

    // store drag target, for new item insertion
    dragTarget_ = _updateDragTarget( position );

    // create menu
    BaseContextMenu menu( this );
    menu.setHideDisabledActions( true );

    // add entry
    menu.addAction( addItemAction_ );
    menu.addAction( addSeparatorAction_ );

    if( ( focusItem_ = _focusItem() ) )
    {
        menu.addSeparator();
        if( !focusItem_->isSeparator() && !focusItem_->hasFlag( Private::LocalFileInfo::ReadOnly ) )
        {
            editItemAction_->setText( tr( "Edit '%1'" ).arg( focusItem_->text() ) );
            menu.addAction( editItemAction_ );
        }

        if( !focusItem_->hasFlag( Private::LocalFileInfo::ReadOnly ) )
        {
            if( focusItem_->isSeparator() ) removeItemAction_->setText( tr( "Remove Separator" ) );
            else removeItemAction_->setText( tr( "Remove '%1'" ).arg( focusItem_->text() ) );
            menu.addAction( removeItemAction_ );
        }

        {
            if( focusItem_->isSeparator() ) hideItemAction_->setText( tr( "Hide Separator" ) );
            else hideItemAction_->setText( tr( "Hide '%1'" ).arg( focusItem_->text() ) );
            hideItemAction_->setChecked( focusItem_->hasFlag( Private::LocalFileInfo::Hidden ) );
            menu.addAction( hideItemAction_ );
        }

    }

    bool hasHiddenItems = std::any_of(
        items_.begin(), items_.end(),
        Private::PlacesWidgetItem::HasFlagFTor( Private::LocalFileInfo::Hidden) );

    if( hasHiddenItems ) menu.addAction( showAllEntriesAction_ );
    else showAllEntriesAction_->setChecked( false );

    // separator
    menu.addSeparator();

    // icon sizes
    menu.addMenu( iconSizeMenu_ );

    // execute
    menu.exec( mapToGlobal( position ) );
}

//______________________________________________________________________
void PlacesWidget::_updateIconSize( IconSize::Size size )
{
    Debug::Throw() << "PlacesWidget::_updateIconSize - size: " << size << endl;

    // save in options
    XmlOptions::get().set<int>( "PLACES_ICON_SIZE", size );

    // update button sizes
    QSize iconSize = size==IconSize::Default ? Private::PlacesWidgetItem().iconSize() : IconSize( size ).get();
    for( const auto& item:items_ )
    {
        item->setIconSize( iconSize );
        item->updateMinimumSize();
    }

}

//______________________________________________________________________
void PlacesWidget::_addItem()
{
    Debug::Throw( "PlacesWidget::_addItem.\n" );

    Private::PlacesWidgetItemDialog dialog( this );
    dialog.setWindowTitle( tr( "Add Places Entry" ) );
    dialog.setOptionName( "EDIT_PLACES_ITEM_DIALOG" );

    // assign starting point
    BaseFileInfo currentFileInfo;
    if( focusItem_ ) currentFileInfo = focusItem_->fileInfo();
    else {

        currentFileInfo = BaseFileInfo( Util::home(), BaseFileInfo::Folder );
        currentFileInfo.update();

    }

    dialog.setFile( currentFileInfo );

    if( !dialog.exec() ) return;

    // create new item
    const File file( dialog.file() );
    BaseFileInfo fileInfo( file );
    if( dialog.isRemote() )
    {
        fileInfo.setRemote();
        fileInfo.setIsFolder();

    } else {

        fileInfo.update();
        fileInfo.setLocal();

        if( file.isDirectory() ) fileInfo.setIsFolder();
        else fileInfo.setIsDocument();
        if( file.isLink() ) fileInfo.setIsLink();
        if( file.isBrokenLink() ) fileInfo.setIsBrokenLink();
        if( file.isHidden() ) fileInfo.setIsHidden();

    }

    // check file info
    if( fileInfo.isDocument() || fileInfo.isBrokenLink() || (fileInfo.isLocal() && !fileInfo.file().exists() ) )
    {
        WarningDialog( this, tr( "Places item is invalid. <Add Entry> canceled." ) ).exec();
        return;
    }

    // item name
    QString name( dialog.name() );
    if( name.isEmpty() ) name = fileInfo.file().localName();

    // add
    insert( _index( dragTarget_ ), name, fileInfo );

    return;

}

//______________________________________________________________________
void PlacesWidget::_addSeparator()
{
    Debug::Throw( "PlacesWidget::_addSeparator.\n" );

    // add new item
    auto item = new Private::PlacesWidgetItem( this );
    item->setIsSeparator( true );

    // add to button group, list of items and layout
    group_->addButton( item );
    buttonLayout_->addWidget( item );
    items_.append( item );

    // emit signal
    _updateDragState();

}

//______________________________________________________________________
void PlacesWidget::_insertSeparator()
{
    Debug::Throw( "PlacesWidget::_insertSeparator.\n" );

    // add new item
    auto item = new Private::PlacesWidgetItem( this );
    item->setIsSeparator( true );

    // add to button group, list of items and layout
    group_->addButton( item );

    int position( _index( dragTarget_ ) );
    if( position > items_.size() )
    {

        buttonLayout_->addWidget( item );
        items_.append( item );

    } else {

        if( position < 0 ) position = 0;
        buttonLayout_->insertWidget( position, item );
        items_.insert( position, item );

    }

    // emit signal
    _updateDragState();

}

//______________________________________________________________________
void PlacesWidget::_editItem()
{
    Debug::Throw( "PlacesWidget::_editItem.\n" );
    if( !focusItem_ ) return;

    Private::PlacesWidgetItemDialog dialog( this );
    dialog.setWindowTitle( tr( "Edit Places Entry" ) );
    dialog.setOptionName( "EDIT_PLACES_ITEM_DIALOG" );
    dialog.setName( focusItem_->text() );
    dialog.setFile( focusItem_->fileInfo() );

    if( !dialog.exec() ) return;

    // remote flag
    const BaseFileInfo oldFileInfo( focusItem_->fileInfo() );
    BaseFileInfo fileInfo( oldFileInfo );
    const bool locationChanged( fileInfo.isRemote() != dialog.isRemote() );
    if( locationChanged )
    {
        if( dialog.isRemote() ) fileInfo.setRemote();
        else fileInfo.setLocal();
    }

    // file
    const File file( dialog.file() );
    const bool fileChanged( fileInfo.file() != file );
    if( fileChanged ) fileInfo.setFile( File( dialog.file() ) );

    // check
    if( locationChanged || fileChanged )
    {

        if( fileInfo.isLocal() )
        {
            fileInfo.update();
            if( file.isDirectory() ) fileInfo.setIsFolder();
            else fileInfo.setIsDocument();
            if( file.isLink() ) fileInfo.setIsLink();
            if( file.isBrokenLink() ) fileInfo.setIsBrokenLink();
            if( file.isHidden() ) fileInfo.setIsHidden();

            // check file info
            if( fileInfo.isDocument() || fileInfo.isBrokenLink() || (fileInfo.isLocal() && !fileInfo.file().exists() ) )
            {
                WarningDialog( this, tr( "Places item is invalid. <Edit Entry> canceled." ) ).exec();
                return;
            }

        }

        // update fileInfo
        focusItem_->setFileInfo( fileInfo );

        // update fileSystemWatcher
        if( oldFileInfo.isLocal() && !oldFileInfo.file().isEmpty() && fileSystemWatcher_.directories().contains( oldFileInfo.file() ) )
        { fileSystemWatcher_.removePath( oldFileInfo.file() ); }

        if( !fileInfo.file().isEmpty() )
        {

            if( fileInfo.isLocal() )
            {

                const bool exists( fileInfo.file().exists() );
                focusItem_->setIsValid( exists );
                if( exists && !fileSystemWatcher_.directories().contains( fileInfo.file() ) )
                { fileSystemWatcher_.addPath( fileInfo.file() ); }

            } else emit remoteItemAdded( fileInfo );

        }

    }

    // name
    const bool nameChanged( focusItem_->text() != dialog.name() );
    if( nameChanged ) focusItem_->setText( dialog.name() );

}

//______________________________________________________________________
void PlacesWidget::_removeItem()
{
    Debug::Throw( "PlacesWidget::_removeItem.\n" );
    if( !focusItem_ ) return;

    // remove from fileSystem watcher
    const BaseFileInfo fileInfo( focusItem_->fileInfo() );
    if( fileInfo.isLocal() && !fileInfo.file().isEmpty() && fileSystemWatcher_.directories().contains( fileInfo.file() ) )
    { fileSystemWatcher_.removePath( fileInfo.file() ); }

    // remove from button group
    group_->removeButton( focusItem_ );
    items_.removeOne( focusItem_ );
    focusItem_->hide();
    focusItem_->deleteLater();
    focusItem_ = nullptr;

    // emit signal
    _updateDragState();

}

//______________________________________________________________________
void PlacesWidget::_updateItems()
{
    Debug::Throw( "PlacesWidget::_updateItems.\n" );
    bool changed( false );
    for( const auto& item:items_ )
    {

        const BaseFileInfo fileInfo( item->fileInfo() );
        if( fileInfo.isLocal() && !fileInfo.file().isEmpty())
        { changed |= item->setIsValid( fileInfo.file().exists() ); }

    }

    // redisplay if changed
    if( changed ) update();

}

//______________________________________________________________________
void PlacesWidget::_toggleHideItem( bool value )
{

    Debug::Throw( "PlacesWidget::_toggleHideItem.\n" );
    if( !focusItem_ ) return;
    if( value == focusItem_->hasFlag( Private::LocalFileInfo::Hidden ) ) return;
    focusItem_->setFlag( Private::LocalFileInfo::Hidden, value );
    if( value && !showAllEntriesAction_->isChecked() )
    {
        focusItem_->hide();
        focusItem_->setFocus( false );
        focusItem_->setMouseOver( false );
    }
}

//______________________________________________________________________
void PlacesWidget::_toggleShowAllEntries( bool value )
{

    Debug::Throw( "PlacesWidget::_toggleShowAllEntries.\n" );
    XmlOptions::get().set<bool>( "PLACES_SHOW_ALL_ENTRIES", value );
    if( value )
    {

        for( const auto& item:items_ )
        { item->show(); }

    } else {

        for( const auto& item:items_ )
        { if( item->hasFlag( Private::LocalFileInfo::Hidden ) ) item->hide(); }

    }

}

//_______________________________________________
void PlacesWidget::dragEnterEvent( QDragEnterEvent* event )
{
    Debug::Throw( "PlacesWidget::dragEnterEvent.\n" );
    if( _canDecode( event->mimeData() ) )
    {
        event->accept();
        dragInProgress_ = true;
        dragTarget_ = _updateDragTarget( event->pos() );
        update();
    }

}

//_______________________________________________
void PlacesWidget::dragMoveEvent( QDragMoveEvent* event )
{
    Debug::Throw( "PlacesWidget::dragMoveEvent.\n" );
    QPoint dragTarget( _updateDragTarget( event->pos() ) );
    if( dragTarget != dragTarget_ )
    {
        dragTarget_ = dragTarget;
        update();
    }
}

//_______________________________________________
void PlacesWidget::dragLeaveEvent( QDragLeaveEvent* )
{
    Debug::Throw( "PlacesWidget::dragLeaveEvent.\n" );
    dragInProgress_ = false;
    update();
}

//_______________________________________________
void PlacesWidget::dropEvent( QDropEvent* event )
{
    Debug::Throw( "PlacesWidget::dropEvent.\n" );

    // reset dragInProgress flag
    dragInProgress_ = false;
    update();

    if( event->mimeData()->hasFormat( Private::PlacesWidgetItem::MimeType ) )
    {

        // internal dragging. Try re-order items
        auto iter = std::find_if( items_.begin(), items_.end(), []( Private::PlacesWidgetItem* item ) { return item->dragMonitor().isDragInProgress(); } );
        if( iter == items_.end() ) return;

        auto dragItem = *iter;
        int sourceIndex = items_.indexOf( dragItem );

        // find insertion index based on target
        int insertionIndex( _index( dragTarget_ ) );

        // compare
        if( insertionIndex == sourceIndex || insertionIndex == sourceIndex+1 ) return;

        // remove from list and layout
        items_.takeAt( sourceIndex );
        buttonLayout_->takeAt( sourceIndex );

        // re-insert at the correct position
        if( sourceIndex < insertionIndex ) --insertionIndex;
        items_.insert( insertionIndex, dragItem );
        buttonLayout_->insertWidget( insertionIndex, dragItem );

    } else {

        // external source. Try copy items to list of favorites
        QList<BaseFileInfo> fileInfoList( _decode( event->mimeData() ) );
        if( fileInfoList.isEmpty() ) return;

        // find insertion index based on target
        int insertionIndex( _index( dragTarget_ ) );
        for( const auto& fileInfo:fileInfoList )
        {
            insert( insertionIndex, fileInfo );
            ++insertionIndex;
        }

    }

}

//_________________________________________________________________________________
void PlacesWidget::mousePressEvent( QMouseEvent* event )
{
    Debug::Throw( "PlacesWidget::mousePressEvent.\n" );

    const QPoint position( event->pos() );
    for( const auto& item:items_ )
    {  item->setFocus( item->isVisible() && item->rect().translated( item->pos() ).contains( position ) ); }

    QWidget::mousePressEvent( event );
}

//_________________________________________________________________________________
void PlacesWidget::_updateDragState() const
{
    for( const auto& item:items_ )
    { item->dragMonitor().setDragEnabled( items_.size()>1 ); }
}

//_________________________________________________________________________________
QPoint PlacesWidget::_updateDragTarget( const QPoint& position ) const
{
    int y(0);
    for( const auto& item:items_ )
    {
        if( item->isHidden() ) continue;
        const QRect rect( item->rect().translated( item->pos() ) );
        if( rect.center().y() < position.y() ) y = rect.bottom();
        else {

            if( item->hasFocus() ) --y;
            break;

        }
    }

    return QPoint( 0, y );
}

//_________________________________________________________________________________
int PlacesWidget::_index( const QPoint& position ) const
{

    int index = 0;
    for( const auto& item:items_ )
    {
        if( item->isHidden() || position.y()+1 >= item->rect().translated( item->pos() ).bottom() ) ++index;
        else break;
    }

    return index;

}

//_________________________________________________________________________________
bool PlacesWidget::_canDecode( const QMimeData* data ) const
{
    return
        data->hasFormat( Private::PlacesWidgetItem::MimeType ) ||
        data->hasFormat( PathEditor::MimeType ) ||
        !_decode( data ).isEmpty();
}

//_________________________________________________________________________________
QList<BaseFileInfo> PlacesWidget::_decode( const QMimeData* mimeData ) const
{
    QList<BaseFileInfo> fileInfoList;
    if( !mimeData ) return fileInfoList;

    QString format;
    if( mimeData->hasFormat( BaseFileInfo::MimeType ) ) format = BaseFileInfo::MimeType;
    else if( mimeData->hasFormat( PathEditor::MimeType ) ) format = PathEditor::MimeType;
    if( !format.isEmpty() )
    {

        // get dropped file info (use XML)
        // dom document
        QDomDocument document;
        if( !document.setContent( mimeData->data( format ), false ) ) return fileInfoList;

        const auto docElement = document.documentElement();
        for( auto node = docElement.firstChild(); !node.isNull(); node = node.nextSibling() )
        {
            QDomElement element = node.toElement();
            if( element.isNull() ) continue;

            // special options
            if( element.tagName() == Xml::FileInfo )
            {

                BaseFileInfo fileInfo( element );
                if( fileInfo.file().isEmpty() || fileInfo.isNavigator() || !fileInfo.isFolder() ) continue;
                fileInfoList.append( fileInfo );

            }
        }

    } else if( mimeData->hasUrls() ) {

        for( const auto& url:mimeData->urls() )
        {

            #if QT_VERSION >= 0x040800
            // check that local file
            if( !url.isLocalFile() ) continue;
            #endif

            // get file and check existence
            const File file( url.path() );
            if( !( file.exists() && file.isDirectory() ) ) continue;

            BaseFileInfo fileInfo( file );
            fileInfo.update();

            fileInfo.setLocal();
            if( file.isDirectory() ) fileInfo.setIsFolder();
            else fileInfo.setIsDocument();
            if( file.isLink() ) fileInfo.setIsLink();
            if( file.isBrokenLink() ) fileInfo.setIsBrokenLink();
            if( file.isHidden() ) fileInfo.setIsHidden();

            fileInfoList.append( fileInfo );

        }

    }

    return fileInfoList;

}

//_________________________________________________________________________________
Private::PlacesWidgetItem* PlacesWidget::_focusItem() const
{
    auto iter = std::find_if( items_.begin(), items_.end(), []( Private::PlacesWidgetItem* item ) { return item->hasFocus(); } );
    return iter == items_.end() ? nullptr:*iter;
}

//_________________________________________________________________________________
void PlacesWidget::paintEvent( QPaintEvent* event )
{
    QWidget::paintEvent( event );
    if( !dragInProgress_ ) return;

    // paint line
    QPainter painter( this );
    painter.setClipRegion( event->region() );
    painter.setPen( QPen( palette().color( foregroundRole() ), 1 ) );
    painter.drawLine( dragTarget_ + QPoint( 0, 1 ), dragTarget_ + QPoint( width(), 1 ) );
    painter.end();

}

//______________________________________________________________________
bool PlacesWidget::_read()
{
    Debug::Throw( "PlacesWidget::_read.\n" );

    // clear existing entries
    clear();

    const File file( dbFile_ );
    if( file.isEmpty() || !file.exists() ) return false;

    // dom document
    XmlDocument document;
    {

        QFile qfile( file );
        if( !document.setContent( &qfile ) )
        {
            Debug::Throw() << document.error() << endl;
            return false;
        }
    }

    // look for relevant element
    QDomNodeList topNodes = document.elementsByTagName( Xml::FileInfoList );
    if( topNodes.isEmpty() ) return false;

    const Private::LocalFileInfo::List fileInfoList( Private::LocalFileInfo::Helper::list( topNodes.at(0).toElement() ) );
    for( const auto& fileInfo:fileInfoList )
    {

        if( fileInfo.hasFlag( Private::LocalFileInfo::Separator ) ) _addSeparator();
        else {

            const QString name( fileInfo.hasAlias() ? fileInfo.alias() : fileInfo.file().localName() );
            add( name, fileInfo );

        }

        // assign flags to last item
        items_.back()->setFlags( fileInfo.flags() );

        // hide item if needed
        if( !showAllEntriesAction_->isChecked() && items_.back()->hasFlag( Private::LocalFileInfo::Hidden ) )
        { items_.back()->hide(); }

    }

    return true;

}

//______________________________________________________________________
bool PlacesWidget::_write()
{
    Debug::Throw( "PlacesWidget::_write.\n" );

    const File file( dbFile_ );
    if( file.isEmpty() )
    {
        Debug::Throw( "PlacesWidget::write - no file.\n" );
        return false;
    }

    // get list of items and create file info list
    Private::LocalFileInfo::List fileInfoList;
    std::transform( items_.begin(), items_.end(), std::back_inserter(fileInfoList),
        []( Private::PlacesWidgetItem* item ) {
            Private::LocalFileInfo fileInfo( item->fileInfo() );
            fileInfo.setFlags( item->flags() );
            fileInfo.setAlias( item->text() );
            return fileInfo;
        });

    // create document
    XmlDocument document;
    {
        QFile qtfile( file );
        document.setContent( &qtfile );
    }

    // read old list of files
    auto topNodes = document.elementsByTagName( Xml::FileInfoList );
    if( !topNodes.isEmpty() )
    {
        const Private::LocalFileInfo::List oldFileInfoList( Private::LocalFileInfo::Helper::list( topNodes.at(0).toElement() ) );
        if( oldFileInfoList == fileInfoList ) return true;
    }

    // create main element
    auto top = Private::LocalFileInfo::Helper::domElement( fileInfoList, document.get() );

    // append top node to document and write
    document.replaceChild( top );
    {
        QFile qfile( file );
        if( !qfile.open( QIODevice::WriteOnly ) ) return false;
        qfile.write( document.toByteArray() );
    }

    return true;
}

//_________________________________________________________________________________
void PlacesWidget::_addDefaultPlaces()
{

    Debug::Throw( "PlacesWidget::_addDefaultPlaces.\n" );

    // loop over default folders, backward and insert front
    const auto& folders( DefaultFolders::get().folders() );
    DefaultFolders::FolderMapIterator iterator( folders );
    iterator.toBack();
    while( iterator.hasPrevious() )
    {

        iterator.previous();

        // skip if file is not set
        if( iterator.key().isEmpty() ) continue;

        // move existing item to the correct position
        bool found = false;
        for( int index = 0; index< items_.size(); ++index )
        {
            if( items_[index]->fileInfo().file() == iterator.key() )
            {
                items_.insert( 0, items_.takeAt( index ) );
                buttonLayout_->insertItem( 0, buttonLayout_->takeAt( index ) );
                found = true;
                break;
            }

        }

        if( found ) continue;

        // push front
        BaseFileInfo fileInfo( iterator.key() );
        fileInfo.setIsFolder();
        insert( 0, iconProvider_ ? iconProvider_->icon( fileInfo ):QIcon(), DefaultFolders::get().name( iterator.value() ), fileInfo );
        items_.front()->setFlag( Private::LocalFileInfo::ReadOnly, true );

    }

}

//_________________________________________________________________________________
bool PlacesWidget::_setDBFile( const File& file )
{

    Debug::Throw() << "PlacesWidget::_setDBFile - file: " << file << endl;

    // check file
    if( dbFile_ == file && !items_.isEmpty() ) return false;

    // store file and read
    dbFile_ = file;

    // make sure file is hidden (windows only)
    if( dbFile_.localName().startsWith( '.' ) )
    { dbFile_.setHidden(); }

    _read();

    return true;

}

//_________________________________________________________________________________
void PlacesWidget::_updateConfiguration()
{
    Debug::Throw( "PlacesWidget::_updateConfiguration.\n" );

    // DB file
    _setDBFile( File( XmlOptions::get().raw("RC_FILE") ) );

    // icon size
    if( XmlOptions::get().contains( "PLACES_ICON_SIZE" ) )
    {

        iconSizeMenu_->select( (IconSize::Size) XmlOptions::get().get<int>( "PLACES_ICON_SIZE" ) );

    } else iconSizeMenu_->select( IconSize::Default );

    // show all entries
    if( XmlOptions::get().contains( "PLACES_SHOW_ALL_ENTRIES" ) )  showAllEntriesAction_->setChecked( XmlOptions::get().get<bool>( "PLACES_SHOW_ALL_ENTRIES" ) );

    // default places
    if( !( XmlOptions::get().contains( "PLACES_HAS_DEFAULTS" ) && XmlOptions::get().get<bool>( "PLACES_HAS_DEFAULTS" ) ) )
    {
        _addDefaultPlaces();
        XmlOptions::get().set<bool>( "PLACES_HAS_DEFAULTS", true );
    }

    return;

}

//_________________________________________________________________________________
void PlacesWidget::_saveConfiguration()
{
    Debug::Throw( "PlacesWidget::_saveConfiguration.\n" );
    _write();
}

//_________________________________________________________________________________
void PlacesWidget::_installActions()
{
    Debug::Throw( "PlacesWidget::_installActions.\n" );

    addAction( addItemAction_ = new QAction( IconEngine::get( IconNames::Add ), tr( "Add Entry..." ), this ) );
    connect( addItemAction_, SIGNAL(triggered()), SLOT(_addItem()) );

    addAction( addSeparatorAction_ = new QAction( IconEngine::get( IconNames::Add ), tr( "Add Separator" ), this ) );
    connect( addSeparatorAction_, SIGNAL(triggered()), SLOT(_insertSeparator()) );

    addAction( editItemAction_ = new QAction( IconEngine::get( IconNames::Edit ), tr( "Edit Entry..." ), this ) );
    editItemAction_->setShortcut( Qt::Key_F2 );
    editItemAction_->setShortcutContext(Qt::WidgetShortcut);
    connect( editItemAction_, SIGNAL(triggered()), SLOT(_editItem()) );

    addAction( removeItemAction_ = new QAction( IconEngine::get( IconNames::Remove ), tr( "Remove Entry" ), this ) );
    removeItemAction_->setShortcut( QKeySequence::Delete );
    removeItemAction_->setShortcutContext(Qt::WidgetShortcut);
    connect( removeItemAction_, SIGNAL(triggered()), SLOT(_removeItem()) );

    addAction( hideItemAction_ = new QAction( tr( "Hide Entry" ), this ) );
    hideItemAction_->setCheckable( true );
    connect( hideItemAction_, SIGNAL(toggled(bool)), SLOT(_toggleHideItem(bool)) );

    addAction( showAllEntriesAction_ = new QAction( tr( "Show All Entries" ), this ) );
    showAllEntriesAction_->setCheckable( true );
    connect( showAllEntriesAction_, SIGNAL(toggled(bool)), SLOT(_toggleShowAllEntries(bool)) );

}