update to trunk

(bzr r12588.1.32)

1 files changed, 119 insertions, 0 deletions

diff --git a/src/2geom/path-sink.cpp b/src/2geom/path-sink.cpp
new file mode 100644
index 000000000..6acd9508c
--- /dev/null
+++ b/src/2geom/path-sink.cpp
@@ -0,0 +1,119 @@
+/*
+ * callback interface for SVG path data
+ *
+ * Copyright 2007 MenTaLguY <mental@rydia.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, output to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ */
+
+#include <2geom/sbasis-to-bezier.h>
+#include <2geom/path-sink.h>
+#include <2geom/exception.h>
+
+namespace Geom {
+
+void output(Curve const &curve, PathSink &sink) {
+    std::vector<Point> pts;
+    sbasis_to_bezier(pts, curve.toSBasis(), 2); //TODO: use something better!
+    sink.curveTo(pts[0], pts[1], pts[2]);
+}
+
+void output(HLineSegment const &curve, PathSink &sink) {
+    sink.hlineTo(curve.finalPoint()[X]);
+}
+
+void output(VLineSegment const &curve, PathSink &sink) {
+    sink.vlineTo(curve.finalPoint()[Y]);
+}
+
+void output(LineSegment const &curve, PathSink &sink) {
+    sink.lineTo(curve[1]);
+}
+
+void output(CubicBezier const &curve, PathSink &sink) {
+    sink.curveTo(curve[1], curve[2], curve[3]);
+}
+
+void output(QuadraticBezier const &curve, PathSink &sink) {
+    sink.quadTo(curve[1], curve[2]);
+}
+
+void output(SVGEllipticalArc const &curve, PathSink &sink) {
+    sink.arcTo( curve.ray(X), curve.ray(Y), curve.rotationAngle(),
+    			curve.largeArc(), curve.sweep(),
+    			curve.finalPoint() );
+}
+
+template <typename T>
+bool output_as(Curve const &curve, PathSink &sink) {
+    T const *t = dynamic_cast<T const *>(&curve);
+    if (t) {
+        output(*t, sink);
+        return true;
+    } else {
+        return false;
+    }
+}
+
+void PathSink::path(Path const &path) {
+    flush();
+    moveTo(path.front().initialPoint());
+
+    Path::const_iterator iter;
+    for (iter = path.begin(); iter != path.end(); ++iter) {
+    	output_as<HLineSegment>(*iter, *this) ||
+    	output_as<VLineSegment>(*iter, *this) ||
+        output_as<LineSegment>(*iter, *this) ||
+        output_as<CubicBezier>(*iter, *this) ||
+        output_as<QuadraticBezier>(*iter, *this) ||
+        output_as<SVGEllipticalArc>(*iter, *this) ||
+        output_as<Curve>(*iter, *this);
+    }
+
+    if (path.closed()) {
+        closePath();
+    }
+    flush();
+}
+
+void PathSink::pathvector(PathVector const &pv) {
+    flush();
+    for (PathVector::const_iterator i = pv.begin(); i != pv.end(); ++i) {
+        path(*i);
+    }
+}
+
+}
+
+/*
+  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 :