69 lines
1.7 KiB
C++
69 lines
1.7 KiB
C++
#pragma once
|
|
#include "texture.h"
|
|
#include "util.h"
|
|
#include <stb/stb_truetype.h>
|
|
|
|
class Font
|
|
{
|
|
public:
|
|
int w = 512;
|
|
int h = 512;
|
|
const int num_chars = 256-32;
|
|
const int start_char = 32;
|
|
// {mix, max}
|
|
glm::vec4 bounds{ 0 };
|
|
int size = 0;
|
|
Texture2D font_tex;
|
|
std::string path;
|
|
std::string id;
|
|
std::vector<stbtt_bakedchar> chars;
|
|
float scale = 1.f;
|
|
|
|
Font() = default;
|
|
Font(const Font&) = delete;
|
|
void operator=(const Font&) = delete;
|
|
Font(Font&& other) noexcept;
|
|
void operator=(Font&& other) noexcept;
|
|
|
|
bool load(const std::string& ttf, int sz, float scale);
|
|
void change_scale(float scale);
|
|
void calc_bounds();
|
|
};
|
|
|
|
class FontManager
|
|
{
|
|
public:
|
|
static std::map<std::string, Font> m_fonts;
|
|
static Sampler m_sampler;
|
|
static void init();
|
|
static bool load(const std::string& id, const std::string& ttf, int sz, float scale);
|
|
static const Font& get(const std::string& name, int size, const std::string& weight, bool italic);
|
|
static void invalidate() { m_fonts.clear(); }
|
|
static void change_scale(float scale);
|
|
};
|
|
|
|
class TextMesh
|
|
{
|
|
struct Token
|
|
{
|
|
std::string s;
|
|
float w;
|
|
Token(const std::string& str, float width) : s(str), w(width) {}
|
|
};
|
|
std::vector<Token> tokenize(const std::string& s, const Font& f) const noexcept;
|
|
public:
|
|
GLuint font_array = 0;
|
|
int font_array_count = 0;
|
|
int max_width = 0;
|
|
GLuint font_buffers[2] = {0, 0};
|
|
std::string font;
|
|
std::string weight;
|
|
int italic;
|
|
int size;
|
|
glm::vec2 bb = { 0, 0 };
|
|
glm::vec4 cur_box;
|
|
bool create();
|
|
void update(const std::string& text, const std::string& font, int size, const std::string& weight, bool italic);
|
|
void draw();
|
|
};
|