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gnLocation.cpp

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// File:            gnLocation.cpp
// Purpose:         Standard Location for Feature
// Description:     Feature location
// Changes:        
// Version:         libGenome 0.1.0 
// Author:          Aaron Darling 
// Last Edited:     April 15, 2001, 11:13:00pm 
// Modified by:     
// Copyright:       (c) Aaron Darling 
// Licenses:        Proprietary 
#include "gn/gnLocation.h"
#include "gn/gnDebug.h"

gnLocation::gnLocation()
{
        Clear();
}
gnLocation::gnLocation( const gnLocation& s)
{
        SetBounds( s.m_start, s.m_startLength, s.m_end, s.m_endLength );
        m_type = s.m_type;
}
gnLocation::gnLocation( const gnSeqI start, const gnSeqI startLength, const gnSeqI end, const gnSeqI endLength, gnLocationType type, string contigName)
{
        SetBounds( start, startLength, end, endLength );
        m_type = type;
        m_name = contigName;
}
gnLocation::gnLocation( const gnSeqI start, const gnSeqI end, const gnLocationType type, string contigName )
{
        SetBounds( start, 0, end, 0 );
        m_type = type;
        m_name = contigName;
}

gnLocation* gnLocation::Clone() const
{
        return new gnLocation(*this);
}

void gnLocation::Clear()
{
        m_start = 0;
        m_end = 0;
        m_startLength = 0;
        m_endLength = 0;
        m_type = LT_Nothing;
}


void gnLocation::GetBounds( gnSeqI &s, gnSeqI &sl, gnSeqI &e, gnSeqI &el ) const
{
        s = m_start;
        sl = m_startLength;
        e = m_end;
        el = m_endLength;
}

void gnLocation::SetBounds( const gnSeqI start, const gnSeqI startLength, const gnSeqI end, const gnSeqI endLength)
{
        SetStart(start, startLength);
        SetEnd(end, endLength);
}
void gnLocation::SetBounds( const gnSeqI start, const gnSeqI end)
{
        m_start = start;
        m_end = end;
}

boolean gnLocation::CropTo( const gnLocation &l )
{
        gnSeqI tmp;
        gnSeqI start = l.GetStart();
        gnSeqI end = l.GetEnd();
        if(m_start < start){
                tmp = start < m_end ? start : m_end;
                m_startLength += tmp - m_start;
                m_start = tmp;
        }
        if(m_end < end){
                tmp = end > m_start ? end : m_start;
                m_endLength += m_end - tmp;
                m_end = tmp;
        }

        if( (l.GetFirst() > GetFirst()) )
        {
                if( l.GetFirst() <= m_end )
                        m_startLength = m_start - l.GetFirst();
                else if( l.GetFirst() <= GetLast() )
                {
                        m_end = l.GetFirst();
                        m_start = l.GetFirst() + 1;
                        m_startLength = 0;
                }       
                else
                        Clear();
        }
        if( l.GetLast() < GetLast() )
        {
                if( l.GetLast() >= m_start )
                        m_endLength = l.GetLast() - m_end;
                else if( l.GetLast() >= GetFirst() )
                {
                        m_start = l.GetLast();
                        m_end = l.GetLast() - 1;
                        m_endLength = 0;
                }       
                else
                        Clear();
        }
        if(m_start == m_end)
                return false;
        return true;
}

boolean gnLocation::CropStart( const gnSeqI start ){
        gnSeqI tmp;
        if(m_start < start){
                tmp = start < m_end ? start : m_end;
                m_startLength += tmp - m_start;
                m_start = tmp;
        }
        if(m_start == m_end)
                return false;
        return true;
}

boolean gnLocation::CropEnd( const gnSeqI end ){
        gnSeqI tmp;
        if(m_end < end){
                tmp = end > m_start ? end : m_start;
                m_endLength += m_end - tmp;
                m_end = tmp;
        }
        if(m_start == m_end)
                return false;
        return true;
}

// Intersects
boolean gnLocation::Intersects( const gnLocation &l, const intersectRestriction ir ) const{
        
        if( ir == determinedRegions )
        {
                if( (l.GetFirst() <= m_end) && (l.GetLast() >= m_start) )
                        return true;
        }
        else if( ir == undeterminedRegions )
        {
                if( (l.GetFirst() <= m_start) && (l.GetLast() >= GetFirst()) )
                        return true;
                if( (l.GetFirst() <= GetLast()) && (l.GetLast() >= m_end) )
                        return true;
        }
        else if( ir == allRegions )
        {
                if( (l.GetFirst() <= GetLast()) && (l.GetLast() >= GetFirst()) )
                        return true;
        }
        return false;
}

boolean gnLocation::Contains( const gnLocation &l, const intersectRestriction ir ) const{
        if(ir == determinedRegions)
                return m_start <= l.GetFirst() && l.GetLast() <= m_end;
        else if(ir == undeterminedRegions)
                return  (GetFirst() <= l.GetFirst() && l.GetLast() < m_start) ||
                                (m_end < l.GetFirst() && l.GetLast() <= GetLast());
        return GetFirst() <= l.GetFirst() && l.GetLast() <= GetLast();
}


// Move
boolean gnLocation::MovePositive( const gnSeqI diff )
{
        if(m_start > GNSEQI_END - diff || m_end > GNSEQI_END - diff)
                return false;
        m_start += diff;
        m_end += diff;
        return true;
}
boolean gnLocation::MoveNegative( const gnSeqI diff )
{
        if(m_start < diff || m_end < diff)
                return false;
        m_start -= diff;
        m_end -= diff;
        return true;
}
boolean gnLocation::MoveTo( const int direction, const gnSeqI diff )
{
        if( direction > 0 )
                return MovePositive( diff );
        return MoveNegative( diff );
}

gnLocation gnLocation::GetUnion( const gnLocation &l ) const
{
        ErrorMsg("gnLocation::getUnion -- not implemented\n");
        return l;
}

// Intersects
gnLocation gnLocation::GetIntersection( const gnLocation &l, const intersectRestriction ir ) const{
        gnLocation inter_loc;
        if( ir == determinedRegions )
        {
                if( (l.GetFirst() <= m_end) && (l.GetLast() >= m_start) ){
                        inter_loc.m_start = l.m_start > m_start ? l.m_start : m_start;
                        inter_loc.m_end = l.m_end < m_end ? l.m_end : m_end;
                }
        }
        else if( ir == undeterminedRegions )
        {
                ErrorMsg("Not implemented!");
        }
        else if( ir == allRegions )
        {
                ErrorMsg("Not implemented!");
        }
        return inter_loc;
}

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