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/* SPDX-License-Identifier: GPL-3.0-or-later */
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/*
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* screen
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* - advanced telnet-based user interactive input / output features
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*
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* Copyright (C) 2004-2026 Leaflet <leaflet@leafok.com>
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*/
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#ifndef _SCREEN_H_
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#define _SCREEN_H_
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#include "io.h"
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#include <stddef.h>
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extern const char CTRL_SEQ_CLR_LINE[];
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enum display_constant_t
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{
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MSG_EXT_MAX_LEN = 400,
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};
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struct display_ctx_t
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{
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int reach_begin;
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int reach_end;
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long line_top;
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long line_bottom;
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char msg[MSG_EXT_MAX_LEN];
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};
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typedef struct display_ctx_t DISPLAY_CTX;
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typedef int (*display_data_key_handler)(int *p_key, DISPLAY_CTX *p_ctx);
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extern void moveto(int row, int col);
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extern void clrtoeol();
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extern void clrline(int line_begin, int line_end);
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extern void clrtobot(int line_begin);
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extern void clearscr();
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extern int press_any_key();
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extern int press_any_key_ex(const char *msg, int sec);
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extern void set_input_echo(int echo);
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extern int str_input(char *buffer, int buffer_length, enum io_echo_t echo_mode);
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extern int get_data(int row, int col, char *prompt, char *buffer, int buffer_length, int max_display_len);
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// eof_exit = 0 : Do not exit at EOF
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// 1 : Prompt for any key at EOF, then exit
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// 2 : Exit at EOF without prompt
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extern int display_data(const void *p_data, long display_line_total, const long *p_line_offsets, int eof_exit,
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display_data_key_handler key_handler, const char *help_filename);
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extern int display_file(const char *filename, int eof_exit);
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extern int display_file_key_handler(int *p_key, DISPLAY_CTX *p_ctx);
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extern int show_top(const char *str_left, const char *str_center, const char *str_right);
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extern int show_bottom(const char *msg);
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extern int show_active_board();
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#endif //_SCREEN_H_
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