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#ifndef VUI_H
#define VUI_H
#include <stdarg.h>
typedef enum {
KEY_EOF = 0,
KEY_BKSP = 0x08,
KEY_RET = 0x0d,
KEY_ESC = 0x1b,
KEY_DEL = 0x7f,
KEY_UTF8_MAX = 0x10ffff,
KEY_LEFT, KEY_RIGHT, KEY_UP, KEY_DOWN,
KEY_HOME, KEY_END, KEY_PGUP, KEY_PGDN,
KEY_F1, KEY_F2, KEY_F3, KEY_F4,
KEY_F5, KEY_F6, KEY_F7, KEY_F8,
KEY_F9, KEY_F10, KEY_F11, KEY_F12,
KEY_SHIFT_BIT = 0x200000,
KEY_CTRL_BIT = 0x400000,
KEY_ALT_BIT = 0x800000,
KEY_META_BIT = 0x1000000,
KEY_INVALID = 0x7fffffff,
KEY_CTRL_MASK = 0xe000000,
KEY_BASE_MASK = ~KEY_CTRL_MASK,
} VuiKey;
typedef enum {
FG_BLACK = 0,
FG_RED = 1,
FG_GREEN = 2,
FG_YELLOW = 3,
FG_BLUE = 4,
FG_MAGENTA = 5,
FG_CYAN = 6,
FG_WHITE = 7,
FG_BBLACK = FG_BLACK + 8,
FG_BRED = FG_RED + 8,
FG_BGREEN = FG_GREEN + 8,
FG_BYELLOW = FG_YELLOW + 8,
FG_BBLUE = FG_BLUE + 8,
FG_BMAGENTA = FG_MAGENTA + 8,
FG_BCYAN = FG_CYAN + 8,
FG_BWHITE = FG_WHITE + 8,
BG_BLACK = FG_BLACK << 4,
BG_RED = FG_RED << 4,
BG_GREEN = FG_GREEN << 4,
BG_YELLOW = FG_YELLOW << 4,
BG_BLUE = FG_BLUE << 4,
BG_MAGENTA = FG_MAGENTA << 4,
BG_CYAN = FG_CYAN << 4,
BG_WHITE = FG_WHITE << 4,
BG_BBLACK = FG_BBLACK << 4,
BG_BRED = FG_BRED << 4,
BG_BGREEN = FG_BGREEN << 4,
BG_BYELLOW = FG_BYELLOW << 4,
BG_BBLUE = FG_BBLUE << 4,
BG_BMAGENTA = FG_BMAGENTA << 4,
BG_BCYAN = FG_BCYAN << 4,
BG_BWHITE = FG_BWHITE << 4,
A_BOLD = 1 << 8,
A_DIM = 1 << 9,
A_ITALIC = 1 << 10,
A_UNDERSCORE = 1 << 11,
A_BLINK = 1 << 12,
A_REVERSE = 1 << 13,
} VuiAttr;
#define ATTR_FG(a) ((a) & 0xf)
#define ATTR_BG(a) (((a)>>4) & 0xf)
#define ATTR_A(a) ((a) & ~0xff)
#define ATTR_DEFAULT (FG_WHITE | BG_BLACK)
typedef uint32_t VuiChar;
typedef struct {
unsigned width, height;
VuiChar *chr;
uint16_t *attr;
} VuiBuffer;
typedef struct {
unsigned width, height;
VuiBuffer buf1, buf2;
VuiBuffer *front, *back;
void (*redraw_fn)(void *ctx);
void *redraw_ctx;
int redraw_all;
int scroll_x, scroll_y;
int curs_vis, curs_x, curs_y;
} VuiWindow;
VuiWindow *vui_win(void);
#define LINES (vui_win()->height)
#define COLS (vui_win()->width)
#define BCHR(b,x,y) ((b)->chr[(x) + (y) * (b)->width])
#define BATTR(b,x,y) ((b)->attr[(x) + (y) * (b)->width])
#define CHR(x,y) BCHR(vui_win()->front, x, y)
#define ATTR(x,y) BATTR(vui_win()->front, x, y)
void vui_init(void);
void vui_fini(void);
void vui_blit(void);
void vui_clear(void);
void vui_scroll(int dx, int dy);
void vui_chr(int x, int y, VuiChar c);
void vui_chra(int x, int y, VuiChar c, VuiAttr a);
void vui_puts(int x, int y, const char *s);
void vui_putsa(int x, int y, const char *s, VuiAttr a);
void vui_putsn(int x, int y, const char *s, unsigned n);
void vui_putsna(int x, int y, const char *s, unsigned n, VuiAttr a);
int vui_avprintf(int x, int y, VuiAttr a, const char *fmt, va_list ap);
int vui_aprintf(int x, int y, VuiAttr a, const char *fmt, ...);
int vui_printf(int x, int y, const char *fmt, ...);
void vui_fill(VuiChar c, VuiAttr a);
void vui_fill_rect(VuiChar c, VuiAttr a, int x0, int y0, int width, int height);
void vui_curs_vis(int vis);
void vui_curs_pos(int x, int y);
void vui_redraw_fn(void (*fn)(void *ctx));
void vui_redraw_ctx(void *ctx);
int vui_wait_for_input(int ms);
int vui_has_input(void);
VuiKey vui_key(void);
#endif
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