// -*- C++ -*-
/**
 * \file LengthCombo.h
 * This file is part of LyX, the document processor.
 * Licence details can be found in the file COPYING.
 *
 * \author John Levon
 *
 * Full author contact details are available in file CREDITS.
 */

#ifndef LENGTHCOMBO_H
#define LENGTHCOMBO_H

#include <QComboBox>

#include "Length.h"


namespace lyx {
namespace frontend {

/**
 * A combo box for selecting Length::UNIT types.
 */
class LengthCombo : public QComboBox {
	Q_OBJECT

public:
	LengthCombo(QWidget * parent);

	/// set the current item from unit
	void setCurrentItem(lyx::Length::UNIT unit);
	/// set the current item from length string
	virtual void setCurrentItem(QString const & item);
	/// set the current item from int
	virtual void setCurrentItem(int item);
	/// get the current item
	lyx::Length::UNIT currentLengthItem() const;
	/// enable the widget
	virtual void setEnabled(bool b);
	/// use the %-items?
	void noPercents();
	/// Remove EM, EX and MU units
	void removeFontDependent();
	/// remove a unit from the combo
	void removeUnit(lyx::Length::UNIT unit);
	/// add a unit to the combo
	void addUnit(lyx::Length::UNIT unit);

protected Q_SLOTS:
	virtual void hasActivated(int index);
Q_SIGNALS:
	/// the current selection has changed
	void selectionChanged(lyx::Length::UNIT unit);
};


} // namespace frontend
} // namespace lyx

#endif // LENGTHCOMBO_H
