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/***************************************************************************
LabelItem.h - label item within a SignalView
-------------------
begin : Sat Mar 26 2011
copyright : (C) 2011 by Thomas Eschenbacher
email : Thomas.Eschenbacher@gmx.de
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#ifndef _LABEL_ITEM_H_
#define _LABEL_ITEM_H_
#include "config.h"
#include <QObject>
#include <Qt>
#include <QString>
#include "kdemacros.h"
#include "libgui/ViewItem.h"
class QMenu;
class Label;
namespace Kwave {
class KDE_EXPORT LabelItem: public Kwave::ViewItem
{
Q_OBJECT
public:
/**
* Constructor
* @param index the one-based index of the label
* @param ms position of the label in ms
* @param label reference to the label
*/
LabelItem(unsigned int index, double ms, const Label &label);
/** Destructor */
virtual ~LabelItem();
/**
* Returns flags describing the possible interactions with this object
* @see Qt::ItemFlag
*/
virtual Qt::ItemFlags flags();
/** Returns the index of the first visible sample */
virtual sample_index_t first();
/** Returns the index of the last visible sample */
virtual sample_index_t last();
/**
* Can be overwritten to return a tooltip.
*
* @param ofs offset within the object the tooltip should refer to
* @return an already localized tooltip
*/
virtual QString toolTip(sample_index_t ofs);
/**
* Called to append entries to a context menu.
* @param parent context menu to add items
*/
virtual void appendContextMenu(QMenu *parent);
private slots:
/** context menu: "label / delete" */
void contextMenuLabelDelete();
/** context menu: "label / properties..." */
void contextMenuLabelProperties();
private:
/** index of the label */
unsigned int m_index;
/** position of the label, sample index */
sample_index_t m_pos;
/** position of the label, milliseconds */
double m_ms;
/** description of the label */
QString m_description;
};
}
#endif /* _LABEL_ITEM_H_ */