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#pragma once
#include <ft2build.h>
#include FT_FREETYPE_H
#include "GL/glew.h"
#include "shader.h"
#include <string>
#include <vector>
#include <unordered_map>
struct Font
{
std::string fontname;
FT_Face face;
GLuint font_tex;
};
struct TextRecord
{
glm::vec2 pos;
glm::vec2 size;
std::string text;
glm::vec4 color1;
glm::vec4 color2;
glm::vec2 gradient;
bool use_gradient;
glm::mat4 mv;
glm::mat4 proj;
};
class FontLib
{
static FT_Library m_ft;
std::unordered_map<std::string, Font>::iterator m_curr_font;
std::unordered_map<std::string, Font> m_fonts;
Shader m_font_shader;
GLuint m_font_vbo;
GLuint m_font_vao;
GLuint m_font_res = 64;
std::vector<TextRecord> m_content;
glm::vec2 m_canvas;
void drawText(TextRecord entry);
public:
bool init();
void submitText(const TextRecord & text);
void commitText();
void setCanvas(glm::vec2 sz);
bool setCurrentFont(std::string fontname);
};
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