1 files changed, 66 insertions, 0 deletions
diff --git a/src/svg/css-ostringstream.cpp b/src/svg/css-ostringstream.cpp
new file mode 100644
index 0000000..96e9abb
--- /dev/null
+++ b/src/svg/css-ostringstream.cpp
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/** @file
+ * TODO: insert short description here
+ *//*
+ * Authors: see git history
+ *
+ * Copyright (C) 2018 Authors
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+#include "svg/css-ostringstream.h"
+#include "svg/strip-trailing-zeros.h"
+#include "preferences.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));
+}
+
+Inkscape::CSSOStringStream &Inkscape::CSSOStringStream::operator<<(double d)
+{
+    // Try as integer first
+    long const n = long(d);
+    if (d == n) {
+        *this << n;
+        return *this;
+    }
+
+    char buf[32];  // haven't thought about how much is really required.
+    switch (precision()) {
+        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;
+    }
+    auto &os = *this;
+    os << strip_trailing_zeros(buf);
+    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 :