kcheckcombobox.h

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/*
  This file is part of libkdepim.

  Copyright (c) 2008 Thomas Thrainer <tom_t@gmx.at>
  Copyright (c) 2010 Bertjan Broeksema <broeksema@kde.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.

  This program 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, write to the Free Software Foundation, Inc.,
  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

  As a special exception, permission is given to link this program
  with any edition of Qt, and distribute the resulting executable,
  without including the source code for Qt in the source distribution.
*/

#ifndef KCHECKCOMBOBOX_H
#define KCHECKCOMBOBOX_H

#include "kdepim_export.h"

#include <KComboBox>
#include <QModelIndex>

namespace KPIM {

class KDEPIM_EXPORT KCheckComboBox : public KComboBox
{
  Q_OBJECT

  Q_PROPERTY( QString separator READ separator WRITE setSeparator )
  Q_PROPERTY( QString defaultText READ defaultText WRITE setDefaultText )
  Q_PROPERTY( bool squeezeText READ squeezeText WRITE setSqueezeText )
  Q_PROPERTY( QStringList checkedItems READ checkedItems WRITE setCheckedItems )

  public:
    explicit KCheckComboBox( QWidget *parent = 0 );

    virtual ~KCheckComboBox();

    virtual void hidePopup();

    QString defaultText() const;

    void setDefaultText( const QString &text );

    bool alwaysShowDefaultText() const;

    void setAlwaysShowDefaultText( bool always );

    bool squeezeText() const;

    void setSqueezeText( bool squeeze );

    bool itemEnabled( int index );

    void setItemEnabled( int index, bool enabled = true );

    Qt::CheckState itemCheckState( int index ) const;

    void setItemCheckState( int index, Qt::CheckState state );

    QString separator() const;

    void setSeparator( const QString &separator );

    QStringList checkedItems( int role = Qt::DisplayRole ) const;

  public Q_SLOTS:
    void setCheckedItems( const QStringList &items, int role = Qt::DisplayRole );

  Q_SIGNALS:
    void checkedItemsChanged( const QStringList &items );

  protected:
    virtual bool eventFilter( QObject *receiver, QEvent *event );
    virtual void keyPressEvent( QKeyEvent *event );
    virtual void resizeEvent( QResizeEvent * event );
#ifndef QT_NO_WHEELEVENT
    virtual void wheelEvent( QWheelEvent *event );
#endif

  private:
    //@cond PRIVATE
    class Private;
    Private *const d;

    Q_PRIVATE_SLOT( d, void makeInsertedItemsCheckable(const QModelIndex &, int start, int end) )
    Q_PRIVATE_SLOT( d, void updateCheckedItems( const QModelIndex &topLeft,
                                                const QModelIndex &bottomRight ) )
    Q_PRIVATE_SLOT( d, void toggleCheckState() )
    //@endcond
};

}

#endif // KCHECKCOMBOBOX_H