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-rw-r--r--src/svg/css-ostringstream.cpp66
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 :