Property.cpp

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/*=============================================================================
TexGen: Geometric textile modeller.
Copyright (C) 2006 Martin Sherburn
 
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.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
=============================================================================*/
 
#include "PrecompiledHeaders.h"
#include "Property.h"
using namespace TexGen;
 
CProperty::CProperty(string SIUnits)
: m_SIUnits(SIUnits)
, m_dValue(0)
, m_bSet(false)
{
}
 
void CProperty::WriteAttribute(TiXmlElement &Element, string AttributeName)
{
    if (m_bSet)
    {
        Element.SetAttribute(AttributeName+"Value", stringify(m_dValue));
        Element.SetAttribute(AttributeName+"Units", m_Units);
    }
}
 
void CProperty::ReadAttribute(TiXmlElement &Element, string AttributeName)
{
    double dValue = 0;
    const string* pUnits;
    if (Element.Attribute(AttributeName+"Value", &dValue) &&
        (pUnits = Element.Attribute(AttributeName+"Units")))
    {
        SetValue(dValue, *pUnits);
    }
}
 
string CProperty::GetString() const
{
    return stringify(m_dValue) + " " + m_Units;
}
 
double CProperty::GetValue(string Units) const
{
    return ConvertUnits(m_dValue, m_Units, Units);
}
 
double CProperty::GetSIValue() const
{
    return GetValue(m_SIUnits);
}
 
void CProperty::SetValue(double dValue, string Units)
{
    string Error;
    if (CompatibleUnits(Units, m_SIUnits, &Error))
    {
        m_dValue = dValue;
        m_Units = Units;
        m_bSet = true;
    }
    else
    {
        Reset();
        TGERROR("Error setting property: " << Error);
    }
}
 
void CProperty::SetValue( double dValue )
{
    m_dValue = dValue;
    m_bSet = true;
}
 
void CProperty::SetUnits( string Units )
{
    string Error;
    if ( CompatibleUnits( Units, m_SIUnits, &Error ) )
    {
        m_Units = Units;
    }
    else
    {
        Reset();
        TGERROR("Error setting property: " << Error);
    }
}
 
void CProperty::Reset()
{
    m_dValue = 0;
    m_Units.clear();
    m_bSet = false;
}
 
double CProperty::GetValue() const
{
    return m_dValue;
}
 
string CProperty::GetUnits() const
{
    return m_Units;
}
 
string CProperty::GetSIUnits() const
{
    return m_SIUnits;
}
 
bool CProperty::IsSet() const
{
    return m_bSet;
}