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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */

    A MIDI and audio sequencer and musical notation editor.

    This program is Copyright 2000-2008
        Guillaume Laurent   <glaurent@telegraph-road.org>,
        Chris Cannam        <cannam@all-day-breakfast.com>,
        Richard Bown        <richard.bown@ferventsoftware.com>

    The moral rights of Guillaume Laurent, Chris Cannam, and Richard
    Bown to claim authorship of this work have been asserted.

    Other copyrights also apply to some parts of this work.  Please
    see the AUTHORS file and individual file headers for details.

    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 included with this distribution for more information.


#include <kdialogbase.h>
#include "base/Event.h"
#include "base/Composition.h"
#include <qpushbutton.h>
#include <qdatetime.h>

class QWidget;
class QString;
class QRadioButton;
class QLabel;
class QCheckBox;

namespace Rosegarden

class TimeWidget;
class RosegardenGUIDoc;
class HSpinBox;

class TempoDialog : public KDialogBase
    enum TempoDialogAction {

    TempoDialog(QWidget *parent, RosegardenGUIDoc *doc,
                bool timeEditable = false);

    // Set the position at which we're checking the tempo
    void setTempoPosition(timeT time);

public slots:
    virtual void slotOk();
    void slotActionChanged();
    void slotTempoChanged(const QString &);
    void slotTempoConstantClicked();
    void slotTempoRampToNextClicked();
    void slotTempoRampToTargetClicked();
    void slotTargetChanged(const QString &);
    void slotTapClicked();

    // Return results in this signal
    void changeTempo(timeT,  // tempo change time
                     tempoT,  // tempo value
                     tempoT,  // target tempo value
                     TempoDialog::TempoDialogAction); // tempo action

    void populateTempo();
    void updateBeatLabels(double newTempo);

    //--------------- Data members ---------------------------------

    RosegardenGUIDoc     *m_doc;
    timeT                 m_tempoTime;
    HSpinBox             *m_tempoValueSpinBox;
    QPushButton          *m_tempoTap;
    QTime                 m_tapMinusTwo;
    QTime                 m_tapMinusOne;

    QRadioButton         *m_tempoConstant;
    QRadioButton         *m_tempoRampToNext;
    QRadioButton         *m_tempoRampToTarget;
    HSpinBox             *m_tempoTargetSpinBox; 

    QLabel               *m_tempoBeatLabel;
    QLabel               *m_tempoBeat;
    QLabel               *m_tempoBeatsPerMinute;

    TimeWidget           *m_timeEditor;

    QLabel               *m_tempoTimeLabel;
    QLabel               *m_tempoBarLabel;
    QLabel               *m_tempoStatusLabel;
    QRadioButton         *m_tempoChangeHere;
    QRadioButton         *m_tempoChangeBefore;
    QLabel               *m_tempoChangeBeforeAt;
    QRadioButton         *m_tempoChangeStartOfBar;
    QRadioButton         *m_tempoChangeGlobal;
    QCheckBox            *m_defaultBox;



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