💿🐜 Antkeeper source code
https://antkeeper.com
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144 lines
3.6 KiB
144 lines
3.6 KiB
/*
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* Copyright (C) 2023 Christopher J. Howard
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*
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* This file is part of Antkeeper source code.
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*
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* Antkeeper source code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Antkeeper source code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef ANTKEEPER_SCENE_TEXT_HPP
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#define ANTKEEPER_SCENE_TEXT_HPP
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#include <engine/scene/object.hpp>
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#include <engine/math/vector.hpp>
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#include <engine/gl/vertex-array.hpp>
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#include <engine/gl/vertex-buffer.hpp>
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#include <engine/render/material.hpp>
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#include <engine/type/bitmap-font.hpp>
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#include <engine/type/text-direction.hpp>
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namespace scene {
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/**
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* Text scene object.
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*/
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class text: public object<text>
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{
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public:
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/// Constructs a text object.
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text();
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void render(render::context& ctx) const override;
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/**
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* Manually updates the text object if its font has been updated or altered in any way.
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*/
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void refresh();
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/**
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* Sets the text material.
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*
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* @param material Text material.
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*/
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void set_material(std::shared_ptr<render::material> material);
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/**
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* Sets the text font.
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*
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* @param font Pointer to a font.
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*/
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void set_font(const type::bitmap_font* font);
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/**
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* Sets the direction of the text.
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*
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* @param direction Text direction.
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*/
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void set_direction(type::text_direction direction);
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/**
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* Sets the text content.
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*
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* @param content UTF-8 string of text.
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*/
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void set_content(const std::string& content);
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/**
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* Sets the text color.
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*
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* Text color is passed to the text's material shader as a vertex color.
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*
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* @param color RGBA color.
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*/
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void set_color(const math::fvec4& color);
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/// Returns the text material.
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[[nodiscard]] inline std::shared_ptr<render::material> get_material() const noexcept
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{
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return m_render_op.material;
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}
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/// Returns the text font.
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[[nodiscard]] inline const type::bitmap_font* get_font() const noexcept
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{
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return m_font;
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}
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/// Returns the text direction.
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[[nodiscard]] inline const type::text_direction& get_direction() const noexcept
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{
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return m_direction;
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}
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/// Returns the text content.
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[[nodiscard]] inline const std::string& get_content() const noexcept
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{
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return m_content_u8;
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}
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/// Returns the text color.
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[[nodiscard]] inline const math::fvec4& get_color() const noexcept
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{
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return m_color;
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}
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[[nodiscard]] inline const aabb_type& get_bounds() const noexcept override
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{
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return m_world_bounds;
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}
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private:
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void update_content();
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void update_color();
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virtual void transformed();
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mutable render::operation m_render_op;
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aabb_type m_local_bounds{{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}};
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aabb_type m_world_bounds{{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}};
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const type::bitmap_font* m_font{nullptr};
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type::text_direction m_direction{type::text_direction::ltr};
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std::string m_content_u8;
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std::u32string m_content_u32;
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math::fvec4 m_color{1.0f, 0.0f, 1.0f, 1.0f};
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std::size_t m_vertex_stride{0};
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std::size_t m_vertex_count{0};
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std::vector<std::byte> m_vertex_data;
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std::unique_ptr<gl::vertex_array> m_vao;
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std::unique_ptr<gl::vertex_buffer> m_vbo;
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};
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} // namespace scene
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#endif // ANTKEEPER_SCENE_TEXT_HPP
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