circle.hpp

浏览该文件的文档.

#pragma once
#include <xcal/public.h>
 
#include <xcal/mobject/objects/circle.hpp>
#include <xcal/render/impl/opengl/gl/buffer.hpp>
#include <xcal/render/impl/opengl/object/object.hpp>
#include <xcal/render/impl/opengl/utils/singlemobjectwrapper.hpp>
#include <xcmath/mobject/mat.hpp>
#include <xcmath/xcmath.hpp>
 
namespace xcal::render::opengl::object {
class XCAL_API Circle : public Object {
   public:
    using mat = xcmath::mat<float_t, 4, 4>;
 
   private:
    GL::Buffer vbo_;
    utils::SingleComposedMObjectWrapper<mobject::Circle> mobject_{nullptr};
    std::shared_ptr<GL::ShaderProgram> shader_program_;
    int segments_{36};  // Number of segments to approximate circle
 
   public:
    explicit Circle(mobject::Circle *mobject);
    void create() override;
    void destroy() override;
    void render() const override;
    virtual void update_projection_view(
        const xcmath::mat4<float_t> &projection_view) override;
 
    Circle(const Circle &) = delete;
};
}  // namespace xcal::render::opengl::object
XCAL_OPENGL_REGIST_OBJECT(xcal::render::opengl::object::Circle, Circle);