terminal.h

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#pragma once
 
#include "ansi.h"
 
#include <libpatchwork/patchwork.h>
#include <stdint.h>
#include <sys/io.h>
#include <sys/kbd.h>
#include <threads.h>
 
#define TERMINAL_BLINK_INTERVAL (CLOCKS_PER_SEC / 2)
 
#define TERMINAL_COLUMNS 80
 
#define TERMINAL_ROWS 30
 
#define UEVENT_TERMINAL_DATA (UEVENT_START + 0)
 
#define TERMINAL_MAX_INPUT 64
 
typedef struct
{
    char buffer[TERMINAL_MAX_INPUT];
    uint64_t length;
} uevent_terminal_data_t;
 
typedef enum
{
    TERMINAL_NONE = 0,
    TERMINAL_BOLD = (1 << 0),
    TERMINAL_DIM = (1 << 1),
    TERMINAL_ITALIC = (1 << 2),
    TERMINAL_UNDERLINE = (1 << 3),
    TERMINAL_BLINK = (1 << 4),
    TERMINAL_INVERSE = (1 << 5),
    TERMINAL_HIDDEN = (1 << 6),
    TERMINAL_STRIKETHROUGH = (1 << 7)
} terminal_flags_t;
 
typedef struct
{
    char chr;
    pixel_t foreground;
    pixel_t background;
    terminal_flags_t flags;
    uint16_t col;
    uint16_t physicalRow;
} terminal_char_t;
 
typedef struct terminal
{
    window_t* win;
    font_t* font;
    bool isCursorVisible;
    fd_t stdin[2];
    fd_t stdout[2]; // Also does stderr
    pixel_t foreground;
    pixel_t background;
    terminal_flags_t flags;
    ansi_sending_t ansi;
    terminal_char_t screen[TERMINAL_ROWS][TERMINAL_COLUMNS];
    uint64_t firstRow; // For scrolling
    terminal_char_t* savedCursor;
    terminal_char_t* prevCursor;
    terminal_char_t* cursor;
    pid_t shell;
} terminal_t;
 
typedef struct
{
    font_t* font;
} terminal_init_ctx_t;
 
window_t* terminal_new(display_t* disp);
 
void terminal_loop(window_t* win);