/** Collect all background color changes while preprocessing the DVI file.
* We need them in order to apply the correct background colors even if
* not all but only selected DVI pages are converted. */
void BgColorSpecialHandler::preprocess (const char*, std::istream &is, SpecialActions &actions) {
Color color = ColorSpecialHandler::readColor(is);
unsigned pageno = actions.getCurrentPageNumber();
if (_pageColors.empty() || _pageColors.back().second != color) {
if (!_pageColors.empty() && _pageColors.back().first == pageno)
_pageColors.back().second = color;
else
_pageColors.push_back(PageColor(pageno, color));
}
}
void PapersizeSpecialHandler::preprocess (const string&, std::istream &is, SpecialActions &actions) {
string params;
is >> params;
Length w, h;
const size_t splitpos = params.find(',');
try {
if (splitpos == string::npos) {
w.set(params);
h.set(params);
}
else {
w.set(params.substr(0, splitpos));
h.set(params.substr(splitpos+1));
}
storePaperSize(actions.getCurrentPageNumber(), w, h);
}
catch (UnitException &e) { // ignore invalid length units for now
}
}
