sethLabels/glabels/Units.cpp

/*  Units.cpp
 *
 *  Copyright (C) 2016  Jim Evins <evins@snaught.com>
 *
 *  This file is part of gLabels-qt.
 *
 *  gLabels-qt 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 3 of the License, or
 *  (at your option) any later version.
 *
 *  gLabels-qt 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 gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "Units.h"


#include <QTextStream>
#include <QtDebug>


namespace glabels
{


	Units::Units() : mEnumValue(PT)
	{
	}

	
	Units::Units( Units::Enum enumValue ) : mEnumValue(enumValue)
	{
		switch (enumValue)
		{
		case PT:
		case IN:
		case MM:
		case CM:
		case PC:
			/* Catch all valid enum values. */
			break;
		default:
			/* Catch invalid enum values, reset to PT. */
			qWarning() << "Bad Units::Enum value = " << enumValue << ".";
			mEnumValue = PT;
			break;
		}
	}


	Units::Units( const QString& idString )
	{
		if ( idString == "pt" )
		{
			mEnumValue = PT;
		}
		else if ( idString == "in" )
		{
			mEnumValue = IN;
		}
		else if ( idString == "mm" )
		{
			mEnumValue = MM;
		}
		else if ( idString == "cm" )
		{
			mEnumValue = CM;
		}
		else if ( idString == "pc" )
		{
			mEnumValue = PC;
		}
		else
		{
			mEnumValue = PT;
		}
	}


	Units Units::pt()
	{
		return Units(PT);
	}

	
	Units Units::in()
	{
		return Units(IN);
	}

	
	Units Units::mm()
	{
		return Units(MM);
	}

	
	Units Units::cm()
	{
		return Units(CM);
	}

	
	Units Units::pc()
	{
		return Units(PC);
	}


	Units::Enum Units::toEnum() const
	{
		return mEnumValue;
	}
	
	
	QString Units::toIdString() const
	{
		QString idString;
		
		switch (mEnumValue)
		{
		case Units::PT:
			idString = "pt";
			break;
		case Units::IN:
			idString = "in";
			break;
		case Units::MM:
			idString = "mm";
			break;
		case Units::CM:
			idString = "cm";
			break;
		case Units::PC:
			idString = "pc";
			break;
		}

		return idString;
	}

	
	QString Units::toTrName() const
	{
		QString nameString;
		
		switch (mEnumValue)
		{
		case Units::PT:
			nameString = tr("points");
			break;
		case Units::IN:
			nameString = tr("inches");
			break;
		case Units::MM:
			nameString = tr("mm");
			break;
		case Units::CM:
			nameString = tr("cm");
			break;
		case Units::PC:
			nameString = tr("picas");
			break;
		}

		return nameString;
	}


	double Units::resolution() const
	{
		double value;
		
		switch (mEnumValue)
		{
		case glabels::Units::PT:
			value = 0.01;
			break;
		case glabels::Units::IN:
			value = 0.001;
			break;
		case glabels::Units::MM:
			value = 0.01;
			break;
		case glabels::Units::CM:
			value = 0.001;
			break;
		case glabels::Units::PC:
			value = 0.01;
			break;
		}

		return value;
	}

	
	int Units::resolutionDigits() const
	{
		int digits;
		
		switch (mEnumValue)
		{
		case glabels::Units::PT:
			digits = 2;
			break;
		case glabels::Units::IN:
			digits = 3;
			break;
		case glabels::Units::MM:
			digits = 2;
			break;
		case glabels::Units::CM:
			digits = 3;
			break;
		case glabels::Units::PC:
			digits = 2;
			break;
		}

		return digits;
	}


	bool Units::isIdValid( const QString& idString )
	{
		bool retValue = false;
		
		if ( idString == "pt" )
		{
			retValue = true;
		}
		else if ( idString == "in" )
		{
			retValue = true;
		}
		else if ( idString == "mm" )
		{
			retValue = true;
		}
		else if ( idString == "cm" )
		{
			retValue = true;
		}
		else if ( idString == "pc" )
		{
			retValue = true;
		}

		return retValue;
	}


}