void dc_putc(char c)
{
SCP_string* line_str = &(dc_buffer.back());
SCP_string temp_str;
int i;
int w;
if (c == ' ') {
/**
* Push c onto the temp_str and get its gr_string width
*
* If we run out of room on the line, or
* If we run out of room on the screen, change c to a '\n' and let subsequent block handle it,
* Else, push the space onto the line and bail
*/
temp_str = *line_str;
temp_str.push_back(c);
gr_get_string_size(&w, NULL, temp_str.c_str());
if ((temp_str.size() >= DBCOLS) || (w > gr_screen.max_w)) {
c = '\n';
} else {
lastwhite = temp_str.size();
*line_str = temp_str;
return;
}
}
if (c == '\t') {
/**
* Calculate how many spaces to put in to align tabs,
* Append temp_str with the spaces and get its gr_string width
*
* If we run out of room on the line, or
* If we run out of room on the screen, change c to a '\n' and let subsequent block handle it,
* Else, copy temp_str onto the line, update the lastwhite index, and bail
*/
i = DTABS - (line_str->size() % DTABS);
temp_str = *line_str;
temp_str.append(i, ' ');
gr_get_string_size(&w, NULL, temp_str.c_str());
if ((temp_str.size() >= DBCOLS) || (w > gr_screen.max_w)) {
c = '\n';
} else {
lastwhite = temp_str.size();
*line_str = temp_str;
return;
}
}
if (c == '\n') {
/**
* Trash whatever char happens to be past (DBCOLS - 1),
* Push a blank line onto the dc_buffer from the bottom,
* Increment the scroller, if needed,
* Trash the topmost line(s) in the buffer,
* Reset the lastwhite index,
* Increment the lastline counter, and finally
* bail
*/
if (line_str->size() > DBCOLS) {
line_str->resize(DBCOLS);
}
dc_buffer.push_back("");
if ((dc_buffer.size() > DROWS) && (dc_scroll_y < SCROLL_Y_MAX)) {
dc_scroll_y++;
}
while (dc_buffer.size() > DBROWS) {
dc_buffer.pop_front();
}
lastwhite = 0;
lastline++;
return;
}
// By this point, c is probably a writable character
temp_str = *line_str;
temp_str.push_back(c);
gr_get_string_size(&w, NULL, temp_str.c_str());
if ((temp_str.size() >= DBCOLS) || (w > gr_screen.max_w)) {
/**
* Word wrapping
* Save the word, clear the line of the word, push new line with the word on it
* Update scroll_y, if needed,
* Pop off old lines, and finally
* Push new character onto the new line
*/
temp_str = line_str->substr(lastwhite);
line_str->resize(lastwhite);
dc_buffer.push_back(temp_str);
line_str = &dc_buffer.back();
if ((dc_buffer.size() > DROWS) && (dc_scroll_y < SCROLL_Y_MAX)) {
dc_scroll_y++;
}
while (dc_buffer.size() > DBROWS) {
dc_buffer.pop_front();
}
lastwhite = 0;
lastline++;
line_str->push_back(c);
return;
}
// Else, just push the char onto the line
line_str->push_back(c);
}
