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void Screen::init() {
// Init ncurses
initscr();
// register end stop ncurses before exit
atexit((void (*)(void)) endwin);
// Set good parameters
cbreak();
noecho();
keypad(stdscr, TRUE);
refresh();
//wrefresh(stdscr);
// Get term dimension
int row, col;
getmaxyx(stdscr, row, col);
// Create msg window
msg_ = newwin(row - 3, col, 0, 0);
box(msg_, 0, 0);
wrefresh(msg_);
// Create cmd window
cmd_ = newwin(3, col, row - 3, 0);
box(cmd_, 0 , 0);
// set buf value
*cmd_buffer_ = 0;
cmd_buf_off_ = 0;
cmd_buf_win_off_ = 0;
cmd_buf_win_size_ = col - 1;
cmd_history_off_ = 0;
// KEY UP
case KEY_UP:
if (cmd_history_off_ + 1 > H.size())
break;
if (cmd_history_off_ == 0)
memcpy(cmd_history_buffer_, cmd_buffer_, CMD_BUFFER_SIZE);
strncpy(cmd_buffer_, H.get(cmd_history_off_++).c_str(), CMD_BUFFER_SIZE);
cmd_buffer_[CMD_BUFFER_SIZE - 1] = 0;
cmd_buf_off_ = strlen(cmd_buffer_);
break;
// KEY DOWN
case KEY_DOWN:
if (cmd_history_off_ == 0)
break;
--cmd_history_off_;
if (cmd_history_off_ == 0)
memcpy(cmd_buffer_, cmd_history_buffer_, CMD_BUFFER_SIZE);
else {
strncpy(cmd_buffer_, H.get(cmd_history_off_ - 1).c_str(), CMD_BUFFER_SIZE);
cmd_buffer_[CMD_BUFFER_SIZE - 1] = 0;
}
cmd_buf_off_ = strlen(cmd_buffer_);
if ((size_t) cmd_buf_off_ < strlen(cmd_buffer_))
++cmd_buf_off_;
// save buffer in history
H.add(cmd_buffer_);
// send buffer
wprintw(msg_, "%s\n", cmd_buffer_);
wrefresh(msg_);
// purge buffer
*cmd_buffer_ = 0;
cmd_buf_off_ = 0;
cmd_buf_win_off_ = 0;
cmd_history_off_ = 0;
if (cmd_buf_off_ == 0) break;
del_char(cmd_buffer_, --cmd_buf_off_, CMD_BUFFER_SIZE);
if (!isprint(key)) break;
if (cmd_buf_off_ >= CMD_BUFFER_SIZE - 1) break;
add_char(key, cmd_buffer_, cmd_buf_off_++, CMD_BUFFER_SIZE);
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void Screen::draw_cmd() {
char print_buf[CMD_BUFFER_SIZE];
// clean and redraw the cmd box
werase(cmd_);
box(cmd_, 0, 0);
wmove(cmd_, 1, 1);
// compute offset
if ((ssize_t) cmd_buf_off_ - cmd_buf_win_off_ > cmd_buf_win_size_)
++cmd_buf_win_off_;
// copy part of buffer in print buffer
strncpy(print_buf, cmd_buffer_ + cmd_buf_win_off_, cmd_buf_win_size_ - 2);
print_buf[cmd_buf_win_size_ - 1] = 0;
// print print buffer
wattron(cmd_, A_BOLD);
wprintw(cmd_, "%s", print_buf);
wattroff(cmd_, A_BOLD);
// move cursor to right pos
wmove(cmd_, 1, 1 + cmd_buf_off_);
wrefresh(cmd_);
}
void Screen::add_char(char c, char *string, ssize_t offset, size_t buf_len) {
assert(string);
size_t len = strlen(string);
// check if add one char is possible
if (len + 1 >= buf_len - 1)
return;
// check if offset is good
if (offset >= (ssize_t) buf_len - 1 || offset < 0)
return;
// move one char every char
for (ssize_t i = len; i >= offset; --i)
string[i + 1] = string[i];
string[offset] = c;
}
void Screen::del_char(char *string, ssize_t offset, size_t buf_len) {
assert(string);
size_t len = strlen(string);
// check if del one char is possible
if (len == 0)
return;
// check if offset is good
if (offset >= (ssize_t) buf_len - 1 || offset < 0)
return;
// move one char every char
for (; string[offset] != 0; ++offset)
string[offset] = string[offset + 1];
}
void sigwinch(int) {
return;
}
Screen &operator<< (Screen &scr, const string &s) {
wprintw(scr.msg_, "%s", s.c_str());
wrefresh(scr.msg_);
return scr;
}
Screen &operator<< (Screen &scr, int i) {
wprintw(scr.msg_, "%d", i);
wrefresh(scr.msg_);
return scr;
}