Class DebugWriter

src/svgfill/src/arrange_polygons.cpp:351–508

}

class DebugWriter {
  public:
    DebugWriter() : enabled_(false) {}

    DebugWriter(bool enabled, const std::string& filename_prefix)
        : enabled_(enabled) {
        if (enabled_) {
            obj.open(filename_prefix + ".obj");
            vi = 1;
            svg.open(filename_prefix + ".svg");
            svg << "<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\" viewBox=\"-10 -10 200 200\">\n";
        }
    }
    ~DebugWriter() {
        if (enabled_) {
            svg << "</svg>\n";
            obj << std::flush;
            obj.close();
            svg.close();
        }
    }

    DebugWriter(const DebugWriter&) = delete;

    DebugWriter(DebugWriter&& other) noexcept
        : obj(std::move(other.obj)), vi(other.vi), svg(std::move(other.svg)), enabled_(other.enabled_), last_segment_name_(std::move(other.last_segment_name_))
    {
        other.enabled_ = false;
        other.vi = 1;
        other.last_segment_name_.clear();
    }

    DebugWriter& operator=(const DebugWriter&) = delete;
    
    DebugWriter& operator=(DebugWriter&& other) noexcept {
        if (this == &other) {
            return *this;
        }

        if (enabled_) {
            svg << "</svg>\n";
            obj << std::flush;
            obj.close();
            svg.close();
        }

        obj = std::move(other.obj);
        svg = std::move(other.svg);
        vi = other.vi;
        enabled_ = other.enabled_;
        last_segment_name_ = std::move(other.last_segment_name_);

        other.enabled_ = false;
        other.vi = 1;
        other.last_segment_name_.clear();

        return *this;
    }