text.hpp

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#pragma once
#include "le2d/drawable/draw_primitive.hpp"
#include "le2d/resource/font.hpp"
#include "le2d/text/text_geometry.hpp"
 
namespace le::drawable {
enum class TextExpand : std::int8_t { eBoth, eRight, eLeft };
 
struct TextParams {
    TextHeight height{TextHeight::Default};
    TextExpand expand{TextExpand::eBoth};
};
 
class TextBase : public IDrawPrimitive {
  public:
    using Params = TextParams;
 
    [[nodiscard]] auto to_primitive() const -> Primitive final;
 
    void set_string(IFont& font, std::string_view line, Params const& params = {});
 
    [[nodiscard]] auto get_size() const -> glm::vec2 { return m_size; }
    [[nodiscard]] auto get_texture() const -> ITexture const* { return m_texture; }
 
  private:
    TextGeometry m_geometry{};
    std::vector<kvf::ttf::GlyphLayout> m_glyph_layouts{};
    ITexture const* m_texture{};
    glm::vec2 m_size{};
};
 
class Text : public SingleDrawPrimitive<TextBase> {};
class InstancedText : public InstancedDrawPrimitive<TextBase> {};
} // namespace le::drawable