void screen_delete_char(struct te_buffer *buf)
{
if (buf == NULL)
return;
move_left(buf);
bstring previous_line = current_line_as_bstring(buf->contents, max(buf->point - 1, 0));
char c = curr_char(buf);
delete_char(buf);
bstring s = current_line_as_bstring(buf->contents, max(buf->point, 0));
if (c == '\n') {
statusprintf("s : %s", bstr2cstr(s, '\0'));
clear_nfirst_lines(buffer_win, max(buf->y, 0));
scroll_up(buffer_win);
paint_buffer_nlines(buf, buf->y + 1);
screen_prev_line(buf);
buf->x = max(screen_line_length(previous_line, 0) - 1, 0); /* max because scr_l_len("a") == 1 and coords begin at 0 */
move(buf->y, buf->x);
} else {
draw_line(s, buf->y);
screen_move_left(buf);
move_right(buf); /* yes it's ugly but I don't feel like recoding screen_move_right atm */
}
bdestroy(previous_line);
bdestroy(s);
}
void screen_prev_line(struct te_buffer *buf)
{
if (buf == NULL)
return;
if (buf->y > 0) {
buf->y--;
buf->x = screen_line_length(buf->contents, buf->point);
} else {
if (bstrrchrp(buf->contents, '\n', buf->point) == BSTR_ERR) /* is it the first line of the file ? */
return;
scroll_down(buffer_win);
bstring s = current_line_as_bstring(buf->contents, buf->point - 1);
draw_line(s, 0);
bdestroy(s);
/* update buf->top_char */
s = current_line_as_bstring(buf->contents, buf->top_char);
buf->top_char -= blength(s);
buf->top_char = max(buf->top_char, 0);
bdestroy(s);
}
}
void input_loop(void)
{
while(1) {
int c = getch();
if (command_mode)
process_command(c);
else
process_input(c);
refresh();
miniprintf("%c, line length: %d, y: %d, x%d",
(bchar(current_buf->contents, current_buf->point) == '\n') ? 'N' : bchar(current_buf->contents, current_buf->point),
screen_line_length(current_buf->contents, current_buf->point),
current_buf->y, current_buf->x);
}
}
int screen_move_left(struct te_buffer *buf)
{
if (buf == NULL)
return ERR;
if(move_left(buf) == ERR)
return ERR;
if (curr_char(buf) == '\n') {
screen_prev_line(buf);
buf->x = screen_line_length(buf->contents, buf->point);
} else {
if (buf->x > 0)
if (curr_char(buf) == '\t') {
buf->x -= TAB_LEN;
} else {
buf->x--;
}
}
move(buf->y, buf->x);
return OK;
}