terminal.h

Go to the documentation of this file.

#ifndef NNGN_OS_TERMINAL_H
#define NNGN_OS_TERMINAL_H
 
#include <ranges>
 
#include "math/vec2.h"
#include "utils/log.h"
#include "utils/utils.h"
 
#include "os.h"
 
namespace nngn {
 
using nngn::uvec2;
 
class Terminal {
public:
    NNGN_MOVE_ONLY(Terminal)
    Terminal(void) = default;
    ~Terminal(void);
    auto size(void) const { return this->m_size; }
    auto pixel_size(void) const { return this->m_pixel_size; }
    bool init(int fd);
    std::tuple<bool, bool> update_size(void);
    bool write(std::size_t n, const char *p) const;
    bool write(const std::ranges::sized_range auto &v) const;
    bool flush(void) const;
    bool drain(void) const;
    bool show_cursor(void) const;
    bool hide_cursor(void) const;
private:
    int fd = -1;
    // XXX why do terminals handle writes via `fwrite` much better?
    FILE *f = nullptr;
    int tty_fd = -1;
    uvec2 m_size = {};
    uvec2 m_pixel_size = {};
};
 
bool Terminal::write(const std::ranges::sized_range auto &v) const {
    return this->write(std::size(v), std::data(v));
}
 
inline bool Terminal::show_cursor(void) const {
    return this->write(nngn::VT520EscapeCode::show_cursor);
}
 
inline bool Terminal::hide_cursor(void) const {
    return this->write(nngn::VT520EscapeCode::hide_cursor);
}
 
}
 
#endif