/*  Units.cpp
 *
 *  Copyright (C) 2016  Jaye 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
{
	namespace model
	{


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

	
		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;
			default:
				idString = "pt";
			}

			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;
			default:
				nameString = tr("points");
			}

			return nameString;
		}


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

			return value;
		}

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


	}
}