dxflinepattern.h

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//
// Created by R. van Twisk on 4/14/16.
//

#pragma once

#include "cad/interface/metatype.h"
#include "cad/const.h"
#include <cassert>
#include <vector>
#include <map>
#include <cad/builders/linepattern.h>

namespace lc {
    class DxfLinePattern : public DocumentMetaType, public EntityMetaType {
        public:
            virtual const std::string metaTypeID() const override {
                return DxfLinePattern::LCMETANAME();
            }

            static std::string LCMETANAME() {
                return "_LINEPATTERN";
            }

            virtual const std::string id() const override {
                return DxfLinePattern::LCMETANAME() + "_" + name();
            }

            virtual std::string description() const;
    };

    class DxfLinePatternByValue : public DxfLinePattern {
        friend class builder::LinePatternBuilder;
        public:
            DxfLinePatternByValue() {}
            DxfLinePatternByValue(const std::string &_name, const std::string &_description, const std::vector<double> &_path, const double length);
            virtual ~DxfLinePatternByValue() = default;

            static double calculatePathLength(const std::vector<double> &_path);

            const std::string name() const override;
            std::string description() const override;
            const std::vector<double>& path() const;
            double length() const;

        std::vector<double> generatePattern(const std::vector<double> & dxfPattern, const double length, const double lineWidth) const;

        const std::vector<double> lcPattern(double lineWidth = 1) const;

    private:
        DxfLinePatternByValue(const builder::LinePatternBuilder& builder);

        std::string _name;
        std::string _description;
        std::vector<double> _path;

        //Might grow out of proportions if too much line sizes are rendered
        //We should find a way to remove widths unrendered for x drawing cycles
        mutable std::map<double, std::vector<double>> _lcPatterns;

        double _length;
    };

    class DxfLinePatternByBlock : public DxfLinePattern {
        public:
            virtual const std::string name() const override;
    };

    DECLARE_SHORT_SHARED_PTR(DxfLinePattern)
    DECLARE_SHORT_SHARED_PTR(DxfLinePatternByValue)
    DECLARE_SHORT_SHARED_PTR(DxfLinePatternByBlock)
}