💿🐜 Antkeeper source code
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171 lines
4.0 KiB
171 lines
4.0 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/geom/aabb.hpp>
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#include <engine/utility/fundamental-types.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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typedef geom::aabb<float> aabb_type;
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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 float4& color);
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/// Returns the text material.
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std::shared_ptr<render::material> get_material() const;
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/// Returns the text font.
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const type::bitmap_font* get_font() const;
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/// Returns the text direction.
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const type::text_direction& get_direction() const;
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/// Returns the text content.
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const std::string& get_content() const;
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/// Returns the text color.
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const float4& get_color() const;
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/// @copydoc scene::object::get_local_bounds() const
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virtual const bounding_volume_type& get_local_bounds() const;
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/// @copydoc scene::object::get_world_bounds() const
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virtual const bounding_volume_type& get_world_bounds() const;
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/// @copydoc scene::object::update_tweens()
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virtual void update_tweens();
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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 render_op;
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aabb_type local_bounds;
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aabb_type world_bounds;
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const type::bitmap_font* font;
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type::text_direction direction;
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std::string content_u8;
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std::u32string content_u32;
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float4 color;
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std::size_t vertex_stride;
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std::size_t vertex_count;
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std::vector<std::byte> vertex_data;
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std::unique_ptr<gl::vertex_array> vao;
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std::unique_ptr<gl::vertex_buffer> vbo;
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};
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inline std::shared_ptr<render::material> text::get_material() const
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{
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return render_op.material;
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}
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inline const type::bitmap_font* text::get_font() const
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{
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return font;
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}
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inline const type::text_direction& text::get_direction() const
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{
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return direction;
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}
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inline const std::string& text::get_content() const
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{
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return content_u8;
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}
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inline const float4& text::get_color() const
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{
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return color;
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}
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inline const typename object_base::bounding_volume_type& text::get_local_bounds() const
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{
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return local_bounds;
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}
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inline const typename object_base::bounding_volume_type& text::get_world_bounds() const
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{
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return world_bounds;
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}
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} // namespace scene
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#endif // ANTKEEPER_SCENE_TEXT_HPP
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