multiplyingline.h

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/*
    Copyright (C) 2010 Casey Link <unnamedrambler@gmail.com>
    Copyright (C) 2009-2010 Klaralvdalens Datakonsult AB, a KDAB Group company <info@kdab.net>

    Refactored from earlier code by:
    Copyright (c) 2010 Volker Krause <vkrause@kde.org>
    Copyright (c) 2004 Cornelius Schumacher <schumacher@kde.org>

    This library is free software; you can redistribute it and/or modify it
    under the terms of the GNU Library General Public License as published by
    the Free Software Foundation; either version 2 of the License, or (at your
    option) any later version.

    This library 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 Library General Public
    License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to the
    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
    02110-1301, USA.
*/

#ifndef MULTIPLYINGLINE_H
#define MULTIPLYINGLINE_H

#include "kdepim_export.h"

#include <KGlobalSettings>

#include <QWidget>
#include <QSharedPointer>

namespace KPIM {

class KDEPIM_EXPORT MultiplyingLineData
{
public:
    typedef QSharedPointer<MultiplyingLineData> Ptr;
    virtual ~MultiplyingLineData(){}

    virtual void clear() = 0;
    virtual bool isEmpty() const = 0;
};

class KDEPIM_EXPORT MultiplyingLine : public QWidget
{

    Q_OBJECT
public:
    explicit MultiplyingLine( QWidget *parent );
    virtual ~MultiplyingLine() {}

    virtual void activate() = 0;
    virtual bool isActive() const = 0;

    virtual bool isModified() const = 0;

    virtual void clearModified() = 0;

    virtual MultiplyingLineData::Ptr data() const = 0;
    virtual void setData( const MultiplyingLineData::Ptr &data ) = 0;

    virtual bool isEmpty() const = 0;

    virtual int setColumnWidth( int w ) = 0;

    virtual void fixTabOrder( QWidget *previous ) = 0;

    virtual QWidget *tabOut() const = 0;

    virtual void clear() = 0;

    virtual void setCompletionMode( KGlobalSettings::Completion mode ) = 0;

    virtual void moveCompletionPopup() = 0;

    virtual void aboutToBeDeleted();

signals:
    void returnPressed( KPIM::MultiplyingLine * );
    void downPressed( KPIM::MultiplyingLine * );
    void upPressed( KPIM::MultiplyingLine * );
    void rightPressed();
    void deleteLine( KPIM::MultiplyingLine * );
    void completionModeChanged( KGlobalSettings::Completion );
public slots:
    void slotPropagateDeletion();

protected slots:
    void slotReturnPressed();
    void slotFocusUp();
    void slotFocusDown();


protected:
    virtual void keyPressEvent( QKeyEvent * );
};

}

#endif // MULTIPLYINGLINE_H