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#pragma once
#include "util.hpp"
#include <string>
#include <array>
#include <type_traits>
extern "C" {
#include <SDL2/SDL_video.h>
#include <SDL2/SDL_render.h>
}
namespace wsdl2 {
// forward declarations
class window;
// name aliases
using rect = SDL_Rect;
using point = SDL_Point;
struct color {
std::uint8_t r, g, b, a;
};
class renderer {
public:
friend class window;
renderer(window& w);
virtual ~renderer();
inline void clear() { SDL_RenderClear(sdl()); }
inline void present() { SDL_RenderPresent(sdl()); }
// set color
inline void set_color(std::uint8_t r, std::uint8_t g, std::uint8_t b, std::uint8_t a) {
util::check(0 == SDL_SetRenderDrawColor(sdl(), r, g, b, a));
}
inline void set_color(const color& c) {
set_color(c.r, c.g, c.b, c.a);
}
inline color get_color() {
color c;
util::check(0 == SDL_GetRenderDrawColor(sdl(), &c.r, &c.g, &c.b, &c.a));
return c;
}
// draw a single element
inline void draw_point(int x, int y) {
util::check(0 == SDL_RenderDrawPoint(sdl(), x, y));
}
inline void draw_point(const point& p) {
draw_point(p.x, p.y);
}
inline void draw_line(int x1, int y1, int x2, int y2) {
util::check(0 == SDL_RenderDrawLine(sdl(), x1, y1, x2, y2));
};
inline void draw_line(const point& a, const point& b) {
draw_line(a.x, a.y, b.x, b.y);
};
inline void draw_rect(int x, int y, int h, int w) {
draw_rect(rect {x, y, h, w});
}
inline void draw_rect(const rect& rect) {
util::check(0 == SDL_RenderDrawRect(sdl(), &rect));
}
inline void fill_rect(const rect& rect) {
util::check(0 == SDL_RenderFillRect(sdl(), &rect));
}
// draw multiple elements
template<template<typename> typename Container>
inline void draw_lines(const Container<point>& points) {
util::check(0 == SDL_RenderDrawLines(sdl(), points.data(), points.size()));
}
template<template<typename> typename Container>
inline void draw_points(const Container<point>& points) {
util::check(0 == SDL_RenderDrawLines(sdl(), points.data(), points.size()));
}
template<template<typename> typename Container>
inline void draw_rects(const Container<rect>& rects) {
util::check(0 == SDL_RenderDrawLines(sdl(), rects.data(), rects.size()));
}
template<template<typename> typename Container>
inline void fill_rects(const Container<rect>& rects) {
util::check(0 == SDL_RenderFillRects(sdl(), rects.data(), rects.size()));
}
// overloaded drawing function
inline void draw(const point& p) { draw_point(p); }
inline void draw(const rect& r) { draw_rect(r); }
inline void fill(const rect& r) { fill_rect(r); }
template<template<typename> typename Container>
inline void draw(const Container<point>& points) {
draw_points(points);
}
template<template<typename> typename Container>
inline void draw(const Container<rect>& rects) {
draw_rects(rects);
}
template<template<typename> typename Container>
inline void fill(const Container<rect>& rects) {
fill_rects(rects);
}
private:
SDL_Renderer *m_renderer;
renderer();
void create_sdl_renderer(SDL_Window *win);
// dirty C code
SDL_Renderer* sdl();
};
class window {
public:
friend class renderer;
window() = delete;
window(const window& other) = delete;
window(const std::string& title, std::size_t width, std::size_t height);
virtual ~window();
// setters
void open();
void close();
inline void show() { SDL_ShowWindow(sdl()); }
inline void hide() { SDL_HideWindow(sdl()); }
inline void raise() { SDL_RaiseWindow(sdl()); }
// getters
bool is_open();
bool is_visible();
// rendering
renderer& get_renderer() { return m_renderer; }
void update();
private:
bool m_open;
renderer m_renderer;
SDL_Window *m_window;
// dirty C code
SDL_Window* sdl();
};
}
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