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/* parc
* Copyright (C) 2025 Ekaitz Zarraga <ekaitz@elenq.tech>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TUI_INTERNALS_H
#define TUI_INTERNALS_H
#include <termios.h>
typedef struct _vec2
{
int x;
int y;
}
vec2;
#define INPUT_BUFF_SIZE 100
typedef struct _tui
{
struct termios term_old_config;
struct termios term_config;
char input_buff[INPUT_BUFF_SIZE]; /* For input events */
/* Double buffering of the display:
* We allocate a huge array, double the size we need and realloc it when
* needed. Then the top half is for the old display status and the bottom
* half is for the incoming. Then we flip.
*/
int *display_A;
int *display_B;
vec2 display_size;
}
tui;
typedef struct _event_mouse
{
int key;
vec2 pos;
}
event_mouse;
typedef struct _event_scroll
{
int amount;
}
event_scroll;
typedef struct _event_key
{
int key;
int modifiers;
}
event_key;
typedef enum
{
EVENT_KEY,
EVENT_MOUSE,
EVENT_SCROLL
}
event_type;
typedef struct _event {
event_type type;
union
{
event_key key;
event_mouse mouse;
event_scroll scroll;
} data;
} event;
void tui_cursor_save (void);
void tui_cursor_restore (void);
void tui_mouse_enable (void);
void tui_mouse_disable (void);
void tui_cursor_move (int x, int y);
void tui_cursor_show (void);
void tui_cursor_hide (void);
void tui_screen_erase (void);
void tui_alternate_buffer_enable (void);
void tui_alternate_buffer_disable (void);
void tui_input_sequence_consume (void);
tui *tui_init (void);
void tui_deinit (tui *ui);
void tui_loop (tui *ui);
#endif /* TUI_INTERNALS_H */
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