void set_cursor_rowcol(Text *text, int row, int col)
{
int r, c;
int i;
int diff;
get_cursor_rowcol(text, &r, &c);
diff = abs(r - row);
for (i = 0; i < diff; ++i)
r > row ? move_up(text) : move_down(text);
move_cursor_bol(text);
get_cursor_rowcol(text, &r, &c);
diff = abs(c - col);
for (i = 0; i < diff; ++i) {
if (text->buf[text->text_start] != '\n') {
if (text->buf[text->text_start] == '\t')
diff -= 7;
c > col ? move_left(text) : move_right(text);
}
}
}
int get_rowcoloffset_of_chars(Text *text, char *ch, int *row, int *col, int *offset, int forwards)
{
int r, c;
int i, j, mo,bytes, matched, length;
r = 0, c = 0;
get_cursor_rowcol(text, &r, &c);
*offset = 0;
length = strlen(ch);
if (forwards) {
for (i = text->text_start; i + length < text->size; ++i) {
matched = 1;
for (j = 0; j < length; ++j) {
if (text->buf[i + j] != ch[j]) {
matched = 0;
break;
}
}
if (matched) {
goto done;
}
if (text->buf[i] == '\n') {
++r;
c = 0;
} else if (text->buf[i] == '\t') {
c += 8;
} else {
bytes = more_bytes_utf8[(unsigned int)(unsigned char)text->buf[i]];
i += bytes;
++c;
}
++(*offset);
}
} else {
for (i = ((int)text->gap_start)-1; i >= 0; --i) {
matched = 1;
mo = 0;
for (j = 0; j < length; ++j) {
if (i + j == text->gap_start)
mo = GAPSIZE(text);
if (text->buf[i + j + mo] != ch[j]) {
matched = 0;
break;
}
}
if (matched) {
c = -1;
for (; i >= 0; --i) {
if (text->buf[i] == '\n') {
break;
} else if (text->buf[i] == '\t') {
c += 8;
} else {
bytes = more_bytes_utf8[(unsigned int)(unsigned char)text->buf[i]];
i -= bytes;
++c;
}
}
goto done;
}
if (text->buf[i] == '\n') {
--r;
} else {
bytes = more_bytes_utf8[(unsigned int)(unsigned char)text->buf[i]];
i -= bytes;
}
++(*offset);
}
}
return -1;
done:
*row = r;
*col = c;
return 0;
}
int main(int argc, char *argv[])
{
struct arguments arguments;
signal(SIGINT, finish);
arguments.verbose = 0;
arguments.nopy = 0;
arguments.files = NULL;
arguments.num_files = 0;
argp_parse(&argp, argc, argv, 0, 0, &arguments);
vx_py_init_python(arguments.num_files, argc, argv);
init_curses();
getmaxyx(stdscr, row, col);
vx_py_load_start();
clear();
refresh();
get_cursor_rowcol(focused_window->buffer->text, &screen_rows, &screen_cols);
vx_py_update_vars();
vx_py_pump();
wmove(focused_window->curses_window, 0, 0);
refresh_window(focused_window);
clock_t last_tick = clock();
float update_every = .25;
while (lets_edit)
{
if (lets_suspend) {
endwin();
raise(SIGSTOP);
lets_suspend = 0;
refresh();
clear();
nonl();
raw();
noecho();
getmaxyx(stdscr, row, col);
vx_py_update_vars();
vx_py_register_resize();
continue;
}
float delay = update_every - ((float)(clock() - last_tick))/CLOCKS_PER_SEC;
timeout(delay*1000);
int c = getch();
size_t bytes;
int utf8q = 1;
/* Handle resize */
if (c == KEY_RESIZE) {
endwin();
refresh();
clear();
getmaxyx(stdscr, row, col);
vx_py_update_vars();
vx_py_register_resize();
continue;
}
/* Handle escape and alt */
if (c != ERR) {
if (c == '\033') {
nodelay(stdscr, 1);
c = getch();
if (c == ERR) {
// got an escape
c = '\033';
} else {
// got an alt+key
c |= 0x80;
utf8q = 0;
}
nodelay(stdscr, 0);
}
/* handle utf8 */
bytes = more_bytes_utf8[c];
if (utf8q && bytes > 0) {
int i;
char *c_utf8 = calloc(1, bytes + 2);
c_utf8[0] = c;
nodelay(stdscr, 1);
for (i = 0; i < bytes; ++i) {
c = getch();
c_utf8[i+1] = c;
}
vx_py_handle_key_utf8(c_utf8);
nodelay(stdscr, 0);
free(c_utf8);
} else {
vx_py_handle_key(c);
}
}
get_cursor_rowcol(focused_window->buffer->text, &screen_rows, &screen_cols);
while (screen_rows+1 < focused_window->line && focused_window->line > 1) --focused_window->line;
while (screen_rows+1 > focused_window->line + focused_window->lines - 1) ++focused_window->line;
while (screen_cols < focused_window->column && focused_window->column > 1) --focused_window->column;
while (screen_cols > focused_window->column + focused_window->columns - 4) ++focused_window->column;
vx_py_update_vars();
vx_py_pump();
wmove(focused_window->curses_window, screen_rows - (focused_window->line - 1), screen_cols - (focused_window->column - 1));
refresh_window(focused_window);
last_tick = clock();
}
vx_py_deinit_python();
finish(0);
}
