Chris@8: /* -*- c-basic-offset: 4 -*-  vi:set ts=8 sts=4 sw=4: */
Chris@8: 
Chris@8: /*
Chris@8:     A waveform viewer and audio annotation editor.
Chris@8:     Chris Cannam, Queen Mary University of London, 2005-2006
Chris@8:     
Chris@8:     This is experimental software.  Not for distribution.
Chris@8: */
Chris@8: 
Chris@8: #include "Selection.h"
Chris@8: 
Chris@8: Selection::Selection() :
Chris@8:     m_startFrame(0),
Chris@8:     m_endFrame(0)
Chris@8: {
Chris@8: }
Chris@8: 
Chris@8: Selection::Selection(size_t startFrame, size_t endFrame) :
Chris@8:     m_startFrame(startFrame),
Chris@8:     m_endFrame(endFrame)
Chris@8: {
Chris@8:     if (m_startFrame > m_endFrame) {
Chris@8: 	size_t tmp = m_endFrame;
Chris@8: 	m_endFrame = m_startFrame;
Chris@8: 	m_startFrame = tmp;
Chris@8:     }
Chris@8: }
Chris@8: 
Chris@8: Selection::Selection(const Selection &s) :
Chris@8:     m_startFrame(s.m_startFrame),
Chris@8:     m_endFrame(s.m_endFrame)
Chris@8: {
Chris@8: }
Chris@8: 
Chris@8: Selection &
Chris@8: Selection::operator=(const Selection &s)
Chris@8: {
Chris@8:     if (this != &s) {
Chris@8: 	m_startFrame = s.m_startFrame;
Chris@8: 	m_endFrame = s.m_endFrame;
Chris@8:     } 
Chris@8:     return *this;
Chris@8: }
Chris@8: 
Chris@8: Selection::~Selection()
Chris@8: {
Chris@8: }
Chris@8: 
Chris@8: bool
Chris@8: Selection::isEmpty() const
Chris@8: {
Chris@8:     return m_startFrame == m_endFrame;
Chris@8: }
Chris@8: 
Chris@8: size_t
Chris@8: Selection::getStartFrame() const
Chris@8: {
Chris@8:     return m_startFrame;
Chris@8: }
Chris@8: 
Chris@8: size_t
Chris@8: Selection::getEndFrame() const
Chris@8: {
Chris@8:     return m_endFrame;
Chris@8: }
Chris@8: 
Chris@8: bool
Chris@9: Selection::contains(size_t frame) const
Chris@9: {
Chris@9:     return (frame >= m_startFrame) && (frame < m_endFrame);
Chris@9: }
Chris@9: 
Chris@9: bool
Chris@8: Selection::operator<(const Selection &s) const
Chris@8: {
Chris@9:     if (isEmpty()) {
Chris@9: 	if (s.isEmpty()) return false;
Chris@9: 	else return true;
Chris@9:     } else {
Chris@9: 	if (s.isEmpty()) return false;
Chris@9: 	else return (m_startFrame < s.m_startFrame);
Chris@9:     }
Chris@8: }
Chris@8: 
Chris@8: bool
Chris@8: Selection::operator==(const Selection &s) const
Chris@8: {
Chris@9:     if (isEmpty()) return s.isEmpty();
Chris@9: 
Chris@8:     return (m_startFrame == s.m_startFrame &&
Chris@8: 	    m_endFrame == s.m_endFrame);
Chris@8: }
Chris@8: