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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/ioctl.h>
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#include <termios.h>
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#include <unistd.h>
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#include <string.h>
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void rget_terminal_size(int *x, int *y) {
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struct winsize w;
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// Get terminal size
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ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
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// Print terminal size
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// printf("Rows: %d, Columns: %d\n", w.ws_row, w.ws_col);
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// You can use this width in your program logic
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int terminal_width = w.ws_col;
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*x = w.ws_col;
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*y = w.ws_row;
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// printf("Setting content width to half the terminal width:\n");
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// Example content that fits within half the terminal width
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// printf("%.*s\n", terminal_width / 2, "This text is formatted to half
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// the terminal width.");
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}
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struct termios rorig_termios;
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// Restore original terminal settings
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void reset_terminal_mode() { tcsetattr(STDIN_FILENO, TCSANOW, &rorig_termios); }
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void set_raw_mode() {
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struct termios new_termios;
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tcgetattr(STDIN_FILENO, &rorig_termios); // Get current terminal settings
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atexit(reset_terminal_mode); // Ensure original settings are restored on exit
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new_termios = rorig_termios;
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new_termios.c_lflag &= ~(ICANON | ECHO); // Disable canonical mode and echoing
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new_termios.c_cc[VMIN] = 1; // Minimum number of characters for noncanonical read
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new_termios.c_cc[VTIME] = 0; // Timeout in deciseconds for noncanonical read
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tcsetattr(STDIN_FILENO, TCSANOW, &new_termios); // Apply new settings
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}
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unsigned int read_key() {
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int nread;
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char c;
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if ((nread = read(STDIN_FILENO, &c, 1)) == -1)
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return -1;
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return c;
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}
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void rrclear() {
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printf("\033[2J"); // Clear screen
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}
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void rset_cursor_position(int x, int y) {
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// rrclear();
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printf("\033[%d;%dH", y, x);
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}
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void get_cursor_position(int *cols, int *rows) {
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char buf[32];
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unsigned int i = 0;
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// Request cursor position
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printf("\033[6n");
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// Read the response: ESC [ rows ; cols R
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while (i < sizeof(buf) - 1) {
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if (read(STDIN_FILENO, buf + i, 1) != 1)
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break;
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if (buf[i] == 'R')
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break;
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i++;
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}
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buf[i] = '\0';
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// Parse the response
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if (buf[0] == '\033' && buf[1] == '[') {
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sscanf(buf + 2, "%d;%d", rows, cols);
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}
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}
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void run() {
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int c;
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int x = 3;
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int y = 3; // Initial y position
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int file_index = 0;
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set_raw_mode();
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printf("\033[2J"); // Clear screen
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rset_cursor_position(x, y);
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char screen_data[1024];
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int width, height;
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rget_terminal_size(&width, &height);
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screen_data[0] = 0;
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for (int i = 0; i < width * height; i++) { // screen_data[i] = '\0';
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// screen_data[i] = 0;
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}
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memset(&screen_data, 0, 2048);
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// printf(screen_data);
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while (1) {
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c = read_key();
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if (c == '\033') { // If the first character is ESC
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if (read_key() == '[') { // If the second character is '['
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rrclear();
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c = read_key();
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if (c == 'A') {
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if (y) {
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y--;
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}
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rset_cursor_position(x, y);
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} else if (c == 'B') {
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if (y) {
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y++;
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}
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rset_cursor_position(x, y);
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} else if (c == 'C') {
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x++;
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rset_cursor_position(x, y);
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} else if (c == 'D') {
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x--;
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rset_cursor_position(x, y);
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}
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printf(screen_data);
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}
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} else if (c == 'q') {
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break; // Press 'q' to quit
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} else {
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for (int i = 0; i < file_index; i++) {
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if (screen_data[i] == '\0') {
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screen_data[i] = ' ';
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}
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}
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screen_data[file_index] = c;
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// file_index++;
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get_cursor_position(&x, &y);
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file_index = x * y;
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x++;
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// putc(c, stdout);
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// rrclear();
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rset_cursor_position(1, 1);
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// ss x++;
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printf(screen_data);
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rset_cursor_position(x, y);
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fflush(stdout);
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}
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}
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}
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int main() { run(); }
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