view base/Selection.h @ 9:73d85d19919f

* Add play-selection and looping modes.  Looping seems to work OK, but
  the plain play-selection is miscalculating current frame number to
  feed back to the GUI.
* Cache selection rectanges wherever possible in View::paintEvent.

/* -*- c-basic-offset: 4 -*-  vi:set ts=8 sts=4 sw=4: */

/*
    A waveform viewer and audio annotation editor.
    Chris Cannam, Queen Mary University of London, 2005-2006
    
    This is experimental software.  Not for distribution.
*/

#ifndef _SELECTION_H_
#define _SELECTION_H_

#include <cstddef>

class Selection
{
public:
    Selection();
    Selection(size_t startFrame, size_t endFrame);
    Selection(const Selection &);
    Selection &operator=(const Selection &);
    virtual ~Selection();

    bool isEmpty() const;
    size_t getStartFrame() const;
    size_t getEndFrame() const;
    bool contains(size_t frame) const;

    bool operator<(const Selection &) const;
    bool operator==(const Selection &) const;
    
protected:
    size_t m_startFrame;
    size_t m_endFrame;
};

#endif