#include "svg/css-ostringstream.h"
#include "svg/strip-trailing-zeros.h"
#include "preferences.h"
#include <glib.h>
Inkscape::CSSOStringStream::CSSOStringStream()
{
/* These two are probably unnecessary now that we provide our own operator<< for float and
* double. */
ostr.imbue(std::locale::classic());
ostr.setf(std::ios::showpoint);
/* This one is (currently) needed though, as we currently use ostr.precision as a sort of
variable for storing the desired precision: see our two precision methods and our operator<<
methods for float and double. */
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
ostr.precision(prefs->getInt("/options/svgoutput/numericprecision", 8));
}
static void
write_num(Inkscape::CSSOStringStream &os, unsigned const prec, double const d)
{
char buf[32]; // haven't thought about how much is really required.
switch (prec) {
case 9: g_ascii_formatd(buf, sizeof(buf), "%.9f", d); break;
case 8: g_ascii_formatd(buf, sizeof(buf), "%.8f", d); break;
case 7: g_ascii_formatd(buf, sizeof(buf), "%.7f", d); break;
case 6: g_ascii_formatd(buf, sizeof(buf), "%.6f", d); break;
case 5: g_ascii_formatd(buf, sizeof(buf), "%.5f", d); break;
case 4: g_ascii_formatd(buf, sizeof(buf), "%.4f", d); break;
case 3: g_ascii_formatd(buf, sizeof(buf), "%.3f", d); break;
case 2: g_ascii_formatd(buf, sizeof(buf), "%.2f", d); break;
case 1: g_ascii_formatd(buf, sizeof(buf), "%.1f", d); break;
case 0: g_ascii_formatd(buf, sizeof(buf), "%.0f", d); break;
case 10: default: g_ascii_formatd(buf, sizeof(buf), "%.10f", d); break;
}
os << strip_trailing_zeros(buf);
}
Inkscape::CSSOStringStream &
operator<<(Inkscape::CSSOStringStream &os, float const d)
{
/* Try as integer first. */
{
long const n = long(d);
if (d == n) {
os << n;
return os;
}
}
write_num(os, os.precision(), d);
return os;
}
Inkscape::CSSOStringStream &
operator<<(Inkscape::CSSOStringStream &os, double const d)
{
/* Try as integer first. */
{
long const n = long(d);
if (d == n) {
os << n;
return os;
}
}
write_num(os, os.precision(), d);
return os;
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :