/*  PageRenderer.h
 *
 *  Copyright (C) 2013-2016  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/>.
 */

#ifndef model_PageRenderer_h
#define model_PageRenderer_h


#include "Point.h"
#include "Variables.h"

#include "merge/Merge.h"
#include "merge/Record.h"

#include <QPainter>
#include <QPrinter>
#include <QRect>
#include <QVector>


namespace glabels
{
	namespace model
	{

		// Forward references
		class Model;


		///
		///  PageRenderer Widget
		///
		class PageRenderer : public QObject
		{
			Q_OBJECT
	
			/////////////////////////////////
			// Life Cycle
			/////////////////////////////////
		public:
			PageRenderer( const Model* model = nullptr );


			/////////////////////////////////
			// Public Methods
			/////////////////////////////////
		public:
			void setModel( const Model* model );
			const Model* model() const;
			void setNCopies( int nCopies );
			void setStartItem( int startItem );
			void setIsCollated( bool isCollated );
			void setAreGroupsContiguous( bool areGroupscontiguous );
			void setPrintOutlines( bool printOutlinesFlag );
			void setPrintCropMarks( bool printCropMarksFlag );
			void setPrintReverse( bool printReverseFlag );
			void setIPage( int iPage );
			int nItems() const;
			int nPages() const;
			QRectF pageRect() const;
			void print( QPrinter* printer ) const;
			void printPage( QPainter* painter ) const;
			void printPage( QPainter* painter, int iPage ) const;


			/////////////////////////////////
			// Signals
			/////////////////////////////////
		signals:
			void changed();
	

			/////////////////////////////////
			// Private slots
			/////////////////////////////////
		private slots:
			void onModelChanged();


			/////////////////////////////////
			// Internal Methods
			/////////////////////////////////
		private:
			void updateNPages();
			void printSimplePage( QPainter* painter, int iPage ) const;
			void printCollatedMergePage( QPainter* painter, int iPage ) const;
			void printUnCollatedMergePage( QPainter* painter, int iPage ) const;
			void printCropMarks( QPainter* painter ) const;
			void printOutline( QPainter* painter ) const;
			void clipLabel( QPainter* painter ) const;
			void printLabel( QPainter* painter, const merge::Record& record, Variables& variables ) const;


			/////////////////////////////////
			// Private Data
			/////////////////////////////////
		private:
			const Model*        mModel{ nullptr };
			const merge::Merge* mMerge{ nullptr };

			int               mNCopies{ 0 };
			int               mStartItem{ 0 };
			int               mLastItem{ 0 };
			int               mNGroups{ 0 };
			int               mNItemsPerGroup{ 0 };
			int               mNPagesPerGroup{ 0 };
			int               mIPage{ 0 };

			bool              mIsMerge{ false };

			int               mNItems{ 0 };
			int               mNPages{ 0 };
			int               mNItemsPerPage{ 0 };

			bool              mIsCollated{ false };
			bool              mAreGroupsContiguous{ false };
			bool              mPrintOutlines{ false };
			bool              mPrintCropMarks{ false };
			bool              mPrintReverse{ false };

			QVector<Point>    mOrigins;
		};

	}
}


#endif // model_PageRenderer_h