arrow_render_data.h

#pragma once
 
#include "arrow_renderer.h"
#include "render_data_base.h"
 
namespace cgv {
namespace render {
 
template <typename ColorType = rgb>
class arrow_render_data : public render_data_base<arrow_renderer, arrow_render_style, ColorType> {
private:
    // Base class we're going to use virtual functions from
    typedef render_data_base<arrow_renderer, arrow_render_style, ColorType> super;
 
    arrow_renderer& ref_renderer_singleton(context& ctx, int ref_count_change = 0) override {
        return ref_arrow_renderer(ctx, ref_count_change);
    }
 
protected:
    bool transfer(context& ctx, arrow_renderer& r) override {
        if(super::transfer(ctx, r)) {
            if(direction_is_end_point) {
                CGV_RDB_TRANSFER_ARRAY(end_point, directions);
            } else {
                CGV_RDB_TRANSFER_ARRAY(direction, directions);
            }
            return true;
        }
        return false;
    }
 
public:
    std::vector<vec3> directions;
    bool direction_is_end_point = false;
 
    void clear() {
        super::clear();
        directions.clear();
    }
 
    void add_direction(const vec3& direction) {
        directions.push_back(direction);
    }
 
    // Explicitly use add from the base class since it is shadowed by the overloaded versions
    using super::add;
 
    void add(const vec3& position, const vec3& direction) {
        super::add_position(position);
        add_direction(direction);
    }
 
    void add(const vec3& position, const ColorType& color, const vec3& direction) {
        super::add(position, color);
        add_direction(direction);
    }
 
    void fill_directions(const vec3& direction) {
        super::fill(directions, direction);
    }
};
 
}
}