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#pragma once
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/*** 1. Controlling the screen. */
/* The screen is a 2D array of cells. */
struct tb_cell {
uint32_t ch; /* unicode character */
uint16_t fg; /* foreground color (0-255) and attributes */
uint16_t bg; /* background color (0-255) and attributes */
};
/* Names for some colors in tb_cell.fg and tb_cell.bg. */
#define TB_BLACK 232
#define TB_WHITE 255
/* Colors in tb_cell can be combined using bitwise-OR with multiple
* of the following attributes. */
#define TB_BOLD 0x0100
#define TB_UNDERLINE 0x0200
#define TB_REVERSE 0x0400
/* Initialize screen and keyboard. */
int tb_init(void);
/* Possible error codes returned by tb_init() */
#define TB_EUNSUPPORTED_TERMINAL -1
#define TB_EFAILED_TO_OPEN_TTY -2
/* Termbox uses unix pipes in order to deliver a message from a signal handler
* (SIGWINCH) to the main event reading loop. */
#define TB_EPIPE_TRAP_ERROR -3
/* Restore terminal mode. */
void tb_shutdown(void);
int tb_is_active(void);
/* Size of the screen. Return negative values before tb_init() or after
* tb_shutdown() */
int tb_width(void);
int tb_height(void);
/* Update the screen with internal state. Most methods below modify just the
* internal state of the screen. Changes won't be visible until you call
* tb_present(). */
void tb_present(void);
/* Variant of tb_present() that always refreshes the entire screen. */
void tb_sync(void);
/* Returns a pointer to the internal screen state: a 1D array of cells in
* raster order. You'll need to call tb_width() and tb_height() for the
* array's dimensions. The array stays valid until tb_clear() or tb_present()
* are called. */
struct tb_cell *tb_cell_buffer();
/* Clear the internal screen state using either TB_DEFAULT or the
* color/attributes set by tb_set_clear_attributes(). */
void tb_clear(void);
void tb_set_clear_attributes(uint16_t fg, uint16_t bg);
/* Move the cursor. Upper-left character is (0, 0).
*/
void tb_set_cursor(int cx, int cy);
/* To hide the cursor, call tb_set_cursor(TB_HIDE_CURSOR, TB_HIDE_CURSOR).
* Cursor starts out hidden. */
#define TB_HIDE_CURSOR -1
/* Modify a specific cell of the screen. Don't forget to call tb_present() to
* commit your changes. */
void tb_change_cell(int x, int y, uint32_t ch, uint16_t fg, uint16_t bg);
/*** 2. Controlling keyboard events. */
struct tb_event {
uint8_t type;
/* fields for type TB_EVENT_KEY. At most one of 'key' and 'ch' will be set at
* any time. */
uint16_t key;
uint32_t ch;
/* fields for type TB_EVENT_RESIZE */
int32_t w;
int32_t h;
/* fields for type TB_EVENT_MOUSE */
int32_t x;
int32_t y;
};
/* Possible values for tb_event.type. */
#define TB_EVENT_KEY 1
#define TB_EVENT_RESIZE 2
#define TB_EVENT_MOUSE 3
/* Possible values for tb_event.key. */
#define TB_KEY_F1 (0xFFFF-0)
#define TB_KEY_F2 (0xFFFF-1)
#define TB_KEY_F3 (0xFFFF-2)
#define TB_KEY_F4 (0xFFFF-3)
#define TB_KEY_F5 (0xFFFF-4)
#define TB_KEY_F6 (0xFFFF-5)
#define TB_KEY_F7 (0xFFFF-6)
#define TB_KEY_F8 (0xFFFF-7)
#define TB_KEY_F9 (0xFFFF-8)
#define TB_KEY_F10 (0xFFFF-9)
#define TB_KEY_F11 (0xFFFF-10)
#define TB_KEY_F12 (0xFFFF-11)
#define TB_KEY_INSERT (0xFFFF-12)
#define TB_KEY_DELETE (0xFFFF-13)
#define TB_KEY_HOME (0xFFFF-14)
#define TB_KEY_END (0xFFFF-15)
#define TB_KEY_PGUP (0xFFFF-16)
#define TB_KEY_PGDN (0xFFFF-17)
#define TB_KEY_ARROW_UP (0xFFFF-18)
#define TB_KEY_ARROW_DOWN (0xFFFF-19)
#define TB_KEY_ARROW_LEFT (0xFFFF-20)
#define TB_KEY_ARROW_RIGHT (0xFFFF-21)
#define TB_KEY_MOUSE_LEFT (0xFFFF-22)
#define TB_KEY_MOUSE_RIGHT (0xFFFF-23)
#define TB_KEY_MOUSE_MIDDLE (0xFFFF-24)
#define TB_KEY_MOUSE_RELEASE (0xFFFF-25)
#define TB_KEY_MOUSE_WHEEL_UP (0xFFFF-26)
#define TB_KEY_MOUSE_WHEEL_DOWN (0xFFFF-27)
#define TB_KEY_START_PASTE (0xFFFF-28)
#define TB_KEY_END_PASTE (0xFFFF-29)
#define TB_KEY_CTRL_ARROW_UP (0xFFFF-30)
#define TB_KEY_CTRL_ARROW_DOWN (0xFFFF-31)
#define TB_KEY_CTRL_ARROW_LEFT (0xFFFF-32)
#define TB_KEY_CTRL_ARROW_RIGHT (0xFFFF-33)
#define TB_KEY_SHIFT_TAB (0xFFFF-34)
/* Names for some of the possible values for tb_event.ch. */
/* These are all ASCII code points below SPACE character and a BACKSPACE key. */
#define TB_KEY_CTRL_TILDE 0x00
#define TB_KEY_CTRL_2 0x00 /* clash with 'CTRL_TILDE' */
#define TB_KEY_CTRL_A 0x01
#define TB_KEY_CTRL_B 0x02
#define TB_KEY_CTRL_C 0x03
#define TB_KEY_CTRL_D 0x04
#define TB_KEY_CTRL_E 0x05
#define TB_KEY_CTRL_F 0x06
#define TB_KEY_CTRL_G 0x07
#define TB_KEY_BACKSPACE 0x08
#define TB_KEY_CTRL_H 0x08 /* clash with 'CTRL_BACKSPACE' */
#define TB_KEY_TAB 0x09
#define TB_KEY_CTRL_I 0x09 /* clash with 'TAB' */
#define TB_KEY_CTRL_J 0x0A
#define TB_KEY_CTRL_K 0x0B
#define TB_KEY_CTRL_L 0x0C
#define TB_KEY_ENTER 0x0D
#define TB_KEY_CTRL_M 0x0D /* clash with 'ENTER' */
#define TB_KEY_CTRL_N 0x0E
#define TB_KEY_CTRL_O 0x0F
#define TB_KEY_CTRL_P 0x10
#define TB_KEY_CTRL_Q 0x11
#define TB_KEY_CTRL_R 0x12
#define TB_KEY_CTRL_S 0x13
#define TB_KEY_CTRL_T 0x14
#define TB_KEY_CTRL_U 0x15
#define TB_KEY_CTRL_V 0x16
#define TB_KEY_CTRL_W 0x17
#define TB_KEY_CTRL_X 0x18
#define TB_KEY_CTRL_Y 0x19
#define TB_KEY_CTRL_Z 0x1A
#define TB_KEY_ESC 0x1B
#define TB_KEY_CTRL_LSQ_BRACKET 0x1B /* clash with 'ESC' */
#define TB_KEY_CTRL_3 0x1B /* clash with 'ESC' */
#define TB_KEY_CTRL_4 0x1C
#define TB_KEY_CTRL_BACKSLASH 0x1C /* clash with 'CTRL_4' */
#define TB_KEY_CTRL_5 0x1D
#define TB_KEY_CTRL_RSQ_BRACKET 0x1D /* clash with 'CTRL_5' */
#define TB_KEY_CTRL_6 0x1E
#define TB_KEY_CTRL_7 0x1F
#define TB_KEY_CTRL_SLASH 0x1F /* clash with 'CTRL_7' */
#define TB_KEY_CTRL_UNDERSCORE 0x1F /* clash with 'CTRL_7' */
#define TB_KEY_SPACE 0x20
#define TB_KEY_BACKSPACE2 0x7F
#define TB_KEY_CTRL_8 0x7F /* clash with 'DELETE' */
/* These are non-existing ones.
*
* #define TB_KEY_CTRL_1 clash with '1'
* #define TB_KEY_CTRL_9 clash with '9'
* #define TB_KEY_CTRL_0 clash with '0'
*/
/* Some aliases */
#define TB_KEY_NEWLINE TB_KEY_CTRL_J
#define TB_KEY_CARRIAGE_RETURN TB_KEY_CTRL_M
/* Wait for an event up to 'timeout' milliseconds and fill the 'event'
* structure with it, when the event is available. Returns the type of the
* event (one of TB_EVENT_* constants) or -1 if there was an error or 0 in case
* there were no event during 'timeout' period.
*/
int tb_peek_event(struct tb_event *event, int timeout);
/* Wait for an event forever and fill the 'event' structure with it, when the
* event is available. Returns the type of the event (one of TB_EVENT_*
* constants) or -1 if there was an error.
*/
int tb_poll_event(struct tb_event *event);
int tb_event_ready(void);
/*** 3. Utility utf8 functions. */
#define TB_EOF -1
int tb_utf8_char_length(char c);
int tb_utf8_char_to_unicode(uint32_t *out, const char *c);
int tb_utf8_unicode_to_char(char *out, uint32_t c);
const char* to_unicode(uint32_t c);
#ifdef __cplusplus
}
#endif
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