1 files changed, 80 insertions, 0 deletions
diff --git a/src/out_svg.cpp b/src/out_svg.cpp
new file mode 100644
index 0000000..159bf13
--- /dev/null
+++ b/src/out_svg.cpp
@@ -0,0 +1,80 @@
+/*
+ * This file is part of gerbolyze, a vector image preprocessing toolchain 
+ * Copyright (C) 2021 Jan Sebastian Götte <gerbolyze@jaseg.de>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <cmath>
+#include <algorithm>
+#include <string>
+#include <iostream>
+#include <iomanip>
+#include <gerbolyze.hpp>
+#include <svg_import_defs.h>
+
+using namespace gerbolyze;
+using namespace std;
+
+SimpleSVGOutput::SimpleSVGOutput(ostream &out, bool only_polys, int digits_frac, string dark_color, string clear_color)
+    : StreamPolygonSink(out, only_polys),
+    m_digits_frac(digits_frac),
+    m_dark_color(dark_color),
+    m_clear_color(clear_color),
+    m_current_color(dark_color)
+{
+}
+
+void SimpleSVGOutput::header_impl(d2p origin, d2p size) {
+    m_offset[0] = origin[0];
+    m_offset[1] = origin[1];
+    m_out << "<svg width=\"" << size[0] << "mm\" height=\"" << size[1] << "mm\" viewBox=\"0 0 "
+        << size[0] << " " << size[1] << "\" xmlns=\"http://www.w3.org/2000/svg\">" << endl;
+}
+
+SimpleSVGOutput &SimpleSVGOutput::operator<<(GerberPolarityToken pol) {
+    if (pol == GRB_POL_DARK) {
+        m_current_color = m_dark_color;
+    } else if (pol == GRB_POL_CLEAR) {
+        m_current_color = m_clear_color;
+    } else {
+        assert(false);
+    }
+
+    return *this;
+}
+
+SimpleSVGOutput &SimpleSVGOutput::operator<<(const Polygon &poly) {
+    if (poly.size() < 3) {
+        cerr << "Warning: " << poly.size() << "-element polygon passed to SimpleGerberOutput" << endl;
+        return *this;
+    }
+
+    m_out << "<path fill=\"" << m_current_color << "\" d=\"";
+    m_out << "M " << setprecision(m_digits_frac) << (poly[0][0] + m_offset[0])
+          << " " << setprecision(m_digits_frac) << (poly[0][1] + m_offset[1]);
+    for (size_t i=1; i<poly.size(); i++) {
+        m_out << " L " << setprecision(m_digits_frac) << (poly[i][0] + m_offset[0])
+              << " " << setprecision(m_digits_frac) << (poly[i][1] + m_offset[1]);
+    }
+    m_out << " Z";
+    m_out << "\"/>" << endl;
+
+    return *this;
+}
+
+void SimpleSVGOutput::footer_impl() {
+    m_out << "</svg>" << endl;
+}
+