Eremey Valetov
ad21350003
Authentic GW-BASIC screen editor with 25x80 buffer, free cursor movement, enter-on-any-line, F1-F10 function keys, Insert/Overwrite toggle, KEY ON/OFF/LIST statement, and Ctrl+Break handling. HAL pointer swap routes all PRINT/LIST/error output through the TUI automatically. Piped mode unchanged (50/50 tests pass). Adds automated compatibility testing infrastructure: DOSBox-X headless config, PRINT-to-file transform script, and run_compat.sh with --generate and --compare modes for verifying output against real GWBASIC.EXE. Project renamed from gwbasic-c to GW-BASIC 2026.
98 lines
2.4 KiB
C
98 lines
2.4 KiB
C
#ifndef GW_TUI_H
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#define GW_TUI_H
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#include <stdint.h>
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#include <stdbool.h>
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#define TUI_ROWS 25
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#define TUI_COLS 80
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#define TUI_MAX_LINE 255
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/* Screen cell: character + color attribute */
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typedef struct {
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uint8_t ch;
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uint8_t attr; /* GW-BASIC color attribute (fg | bg<<4) */
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} tui_cell_t;
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/* Special key codes returned by tui_read_key() */
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#define TK_UP 0x100
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#define TK_DOWN 0x101
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#define TK_LEFT 0x102
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#define TK_RIGHT 0x103
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#define TK_HOME 0x104
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#define TK_END 0x105
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#define TK_DELETE 0x106
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#define TK_INSERT 0x107
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#define TK_PGUP 0x108
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#define TK_PGDN 0x109
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#define TK_F1 0x10A
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#define TK_F2 0x10B
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#define TK_F3 0x10C
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#define TK_F4 0x10D
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#define TK_F5 0x10E
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#define TK_F6 0x10F
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#define TK_F7 0x110
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#define TK_F8 0x111
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#define TK_F9 0x112
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#define TK_F10 0x113
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#define TK_CTRL_HOME 0x114
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#define TK_BACKSPACE 0x08
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#define TK_ENTER 0x0D
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#define TK_ESCAPE 0x1B
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#define TK_TAB 0x09
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#define TK_CTRL_C 0x03
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#define TK_CTRL_BREAK 0x200
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/* TUI state */
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typedef struct {
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tui_cell_t screen[TUI_ROWS][TUI_COLS];
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int cursor_row;
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int cursor_col;
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bool insert_mode;
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bool key_bar_visible; /* KEY ON */
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uint8_t current_attr; /* current color attribute */
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char fkey_defs[10][16]; /* F1-F10 definitions */
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bool active;
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volatile bool break_flag; /* set by SIGINT handler */
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int view_top; /* top of scrollable area (0 for key bar OFF, 0 for key bar ON) */
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int view_bottom; /* bottom row (24 normally, 23 with key bar) */
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} tui_state_t;
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extern tui_state_t tui;
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/* Lifecycle */
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void tui_init(void);
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void tui_shutdown(void);
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/* Screen buffer operations (these replace HAL ops when TUI is active) */
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void tui_putch(int ch);
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void tui_puts(const char *s);
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void tui_cls(void);
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void tui_locate(int row, int col);
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int tui_get_cursor_row(void);
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int tui_get_cursor_col(void);
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/* Rendering */
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void tui_refresh(void);
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void tui_refresh_row(int row);
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void tui_update_cursor(void);
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/* Input */
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int tui_read_key(void);
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char *tui_read_line(void);
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/* Function key bar */
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void tui_key_on(void);
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void tui_key_off(void);
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void tui_key_list(void);
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/* Ctrl+Break */
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void tui_check_break(void);
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void tui_install_break_handler(void);
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/* Cursor shape */
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void tui_set_cursor_block(void);
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void tui_set_cursor_line(void);
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#endif
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