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#pragma once
#include <stdint.h>
/* for shared objects */
#if __GNUC__ >= 4
#define SO_IMPORT __attribute__((visibility("default")))
#else
#define SO_IMPORT
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* Key constants. See also struct tb_event's key field.
*
* These are a safe subset of terminfo keys, which exist on all popular
* terminals. Termbox uses only them to stay truly portable.
*/
#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)
/* 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 'BACKSPACE2' */
/* 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'
*/
/*
* Alt modifier constant, see tb_event.mod field and tb_select_input_mode function.
* Mouse-motion modifier
*/
#define TB_MOD_ALT 0x01
#define TB_MOD_MOTION 0x02
/* Colors (see struct tb_cell's fg and bg fields). */
#define TB_DEFAULT 0x00
#define TB_BLACK 0x01
#define TB_RED 0x02
#define TB_GREEN 0x03
#define TB_YELLOW 0x04
#define TB_BLUE 0x05
#define TB_MAGENTA 0x06
#define TB_CYAN 0x07
#define TB_WHITE 0x08
/* Attributes, it is possible to use multiple attributes by combining them
* using bitwise OR ('|'). Although, colors cannot be combined. But you can
* combine attributes and a single color. See also struct tb_cell's fg and bg
* fields.
*/
#define TB_BOLD 0x0100
#define TB_UNDERLINE 0x0200
#define TB_REVERSE 0x0400
/* A cell, single conceptual entity on the terminal screen. The terminal screen
* is basically a 2d array of cells. It has the following fields:
* - 'ch' is a unicode character
* - 'fg' foreground color and attributes
* - 'bg' background color and attributes
*/
struct tb_cell {
uint32_t ch;
uint16_t fg;
uint16_t bg;
};
#define TB_EVENT_KEY 1
#define TB_EVENT_RESIZE 2
#define TB_EVENT_MOUSE 3
/* An event, single interaction from the user. The 'mod' and 'ch' fields are
* valid if 'type' is TB_EVENT_KEY. The 'w' and 'h' fields are valid if 'type'
* is TB_EVENT_RESIZE. The 'x' and 'y' fields are valid if 'type' is
* TB_EVENT_MOUSE. The 'key' field is valid if 'type' is either TB_EVENT_KEY
* or TB_EVENT_MOUSE. The fields 'key' and 'ch' are mutually exclusive; only
* one of them can be non-zero at a time.
*/
struct tb_event {
uint8_t type;
uint8_t mod; /* modifiers to either 'key' or 'ch' below */
uint16_t key; /* one of the TB_KEY_* constants */
uint32_t ch; /* unicode character */
int32_t w;
int32_t h;
int32_t x;
int32_t y;
};
/* Error codes returned by tb_init(). All of them are self-explanatory, except
* the pipe trap error. Termbox uses unix pipes in order to deliver a message
* from a signal handler (SIGWINCH) to the main event reading loop. Honestly in
* most cases you should just check the returned code as < 0.
*/
#define TB_EUNSUPPORTED_TERMINAL -1
#define TB_EFAILED_TO_OPEN_TTY -2
#define TB_EPIPE_TRAP_ERROR -3
/* Initializes the termbox library. This function should be called before any
* other functions. Function tb_init is same as tb_init_file("/dev/tty").
* After successful initialization, the library must be
* finalized using the tb_shutdown() function.
*/
SO_IMPORT int tb_init(void);
SO_IMPORT int tb_init_file(const char* name);
SO_IMPORT int tb_init_fd(int inout);
SO_IMPORT void tb_shutdown(void);
/* Returns the size of the internal back buffer (which is the same as
* terminal's window size in characters). The internal buffer can be resized
* after tb_clear() or tb_present() function calls. Both dimensions have an
* unspecified negative value when called before tb_init() or after
* tb_shutdown().
*/
SO_IMPORT int tb_width(void);
SO_IMPORT int tb_height(void);
/* Clears the internal back buffer using TB_DEFAULT color or the
* color/attributes set by tb_set_clear_attributes() function.
*/
SO_IMPORT void tb_clear(void);
SO_IMPORT void tb_set_clear_attributes(uint16_t fg, uint16_t bg);
/* Synchronizes the internal back buffer with the terminal. */
SO_IMPORT void tb_present(void);
#define TB_HIDE_CURSOR -1
/* Sets the position of the cursor. Upper-left character is (0, 0). If you pass
* TB_HIDE_CURSOR as both coordinates, then the cursor will be hidden. Cursor
* is hidden by default.
*/
SO_IMPORT void tb_set_cursor(int cx, int cy);
/* Changes cell's parameters in the internal back buffer at the specified
* position.
*/
SO_IMPORT void tb_put_cell(int x, int y, const struct tb_cell *cell);
SO_IMPORT void tb_change_cell(int x, int y, uint32_t ch, uint16_t fg, uint16_t bg);
/* Copies the buffer from 'cells' at the specified position, assuming the
* buffer is a two-dimensional array of size ('w' x 'h'), represented as a
* one-dimensional buffer containing lines of cells starting from the top.
*
* (DEPRECATED: use tb_cell_buffer() instead and copy memory on your own)
*/
SO_IMPORT void tb_blit(int x, int y, int w, int h, const struct tb_cell *cells);
/* Returns a pointer to internal cell back buffer. You can get its dimensions
* using tb_width() and tb_height() functions. The pointer stays valid as long
* as no tb_clear() and tb_present() calls are made. The buffer is
* one-dimensional buffer containing lines of cells starting from the top.
*/
SO_IMPORT struct tb_cell *tb_cell_buffer(void);
#define TB_INPUT_CURRENT 0 /* 000 */
#define TB_INPUT_ESC 1 /* 001 */
#define TB_INPUT_ALT 2 /* 010 */
#define TB_INPUT_MOUSE 4 /* 100 */
/* Sets the termbox input mode. Termbox has two input modes:
* 1. Esc input mode.
* When ESC sequence is in the buffer and it doesn't match any known
* ESC sequence => ESC means TB_KEY_ESC.
* 2. Alt input mode.
* When ESC sequence is in the buffer and it doesn't match any known
* sequence => ESC enables TB_MOD_ALT modifier for the next keyboard event.
*
* You can also apply TB_INPUT_MOUSE via bitwise OR operation to either of the
* modes (e.g. TB_INPUT_ESC | TB_INPUT_MOUSE). If none of the main two modes
* were set, but the mouse mode was, TB_INPUT_ESC mode is used. If for some
* reason you've decided to use (TB_INPUT_ESC | TB_INPUT_ALT) combination, it
* will behave as if only TB_INPUT_ESC was selected.
*
* If 'mode' is TB_INPUT_CURRENT, it returns the current input mode.
*
* Default termbox input mode is TB_INPUT_ESC.
*/
SO_IMPORT int tb_select_input_mode(int mode);
#define TB_OUTPUT_CURRENT 0
#define TB_OUTPUT_NORMAL 1
#define TB_OUTPUT_256 2
#define TB_OUTPUT_216 3
#define TB_OUTPUT_GRAYSCALE 4
/* Sets the termbox output mode. Termbox has three output options:
* 1. TB_OUTPUT_NORMAL => [1..8]
* This mode provides 8 different colors:
* black, red, green, yellow, blue, magenta, cyan, white
* Shortcut: TB_BLACK, TB_RED, ...
* Attributes: TB_BOLD, TB_UNDERLINE, TB_REVERSE
*
* Example usage:
* tb_change_cell(x, y, '@', TB_BLACK | TB_BOLD, TB_RED);
*
* 2. TB_OUTPUT_256 => [0..256]
* In this mode you can leverage the 256 terminal mode:
* 0x00 - 0x07: the 8 colors as in TB_OUTPUT_NORMAL
* 0x08 - 0x0f: TB_* | TB_BOLD
* 0x10 - 0xe7: 216 different colors
* 0xe8 - 0xff: 24 different shades of grey
*
* Example usage:
* tb_change_cell(x, y, '@', 184, 240);
* tb_change_cell(x, y, '@', 0xb8, 0xf0);
*
* 3. TB_OUTPUT_216 => [0..216]
* This mode supports the 3rd range of the 256 mode only.
* But you don't need to provide an offset.
*
* 4. TB_OUTPUT_GRAYSCALE => [0..23]
* This mode supports the 4th range of the 256 mode only.
* But you dont need to provide an offset.
*
* Execute build/src/demo/output to see its impact on your terminal.
*
* If 'mode' is TB_OUTPUT_CURRENT, it returns the current output mode.
*
* Default termbox output mode is TB_OUTPUT_NORMAL.
*/
SO_IMPORT int tb_select_output_mode(int mode);
/* 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.
*/
SO_IMPORT 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.
*/
SO_IMPORT int tb_poll_event(struct tb_event *event);
/* Utility utf8 functions. */
#define TB_EOF -1
SO_IMPORT int tb_utf8_char_length(char c);
SO_IMPORT int tb_utf8_char_to_unicode(uint32_t *out, const char *c);
SO_IMPORT int tb_utf8_unicode_to_char(char *out, uint32_t c);
#ifdef __cplusplus
}
#endif