/*!
 * \file TextInstance.h
 * \date 2020/04/26
 *
 * \author Lin, Chi
 * Contact: lin.chi@hzleaper.com
 *
 *
 * \note
*/

#ifndef __TextInstance_h_
#define __TextInstance_h_

#include "CVUtils.h"
#include "StdUtils.h"

struct OCRChar
{
	/*! type, digits or character */
	OCRCharType charType = OCRCharType::Unknown;
	/*! usually one single character */
	std::string value;
	/*! image of character, rectified */
	Mat img; 
	/*! contours of character, multiple for i j and dot-printed, rectified */
	vector<Point2fVec> contours;
	/*! contours of holes in character, rectified */
	vector<Point2fVec> holes;
	/*! 4 corners' positions of roi in original image */
	Point2fVec quads = Point2fVec(4);
	/*! confidence of each recognition */
	std::map<string, float> confs;

	/*! Projection vector */
	vector<double> projVec;
	/*! Distance vector */
	vector<double> distVec;
	/*! Size in float */
	Size2f size;
};

struct OCRLine
{
	/*! 4 corners' positions of roi in original image */
	Point2fVec quads = Point2fVec(4);
	/*! combination of all characters in the line */
	std::string value;
	/*! all characters */
	vector<OCRChar> chars;
};

struct OCRFontDBConfig
{
	/*! uniformed pattern size */
	Size patternSize;
	/*! features used in classifier, empty means auto-selected */
	vector<FeatureType> fTypes;
	/*! classifier model */
	MLModel mType;
	/*! pixel value type for pixel-based feature, see PPFeature::PixelValueType */
	int pixValueType;
	/*! projection type for pixel-based feature, see PPFeature::ProjectionType */
	int projType;
};

struct TextInstance
{
	DotPrint dotPrint = DotPrint::Auto; // after segmentation, it should be either yes or no
	Size dotGridSize; // after segmentation, it should be not empty
	Polarity polarity = Polarity::Either; // after segmentation, it should be either black or white

	vector<OCRLine> lines;
	typedef std::shared_ptr<TextInstance> Ptr;
};

#endif // TextInstance_h_