Adding upstream version 1.0.2.upstream/1.0.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 122 insertions, 0 deletions

diff --git a/src/2geom/svg-path-writer.h b/src/2geom/svg-path-writer.h
new file mode 100644
index 0000000..e639541
--- /dev/null
+++ b/src/2geom/svg-path-writer.h
@@ -0,0 +1,122 @@
+/** @file
+ * @brief Path sink which writes an SVG-compatible command string
+ *//*
+ * Authors:
+ *   Krzysztof Kosiński <tweenk.pl@gmail.com>
+ * 
+ * Copyright 2014 Authors
+ *
+ * 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, write 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.
+ */
+
+#ifndef LIB2GEOM_SEEN_SVG_PATH_WRITER_H
+#define LIB2GEOM_SEEN_SVG_PATH_WRITER_H
+
+#include <2geom/path-sink.h>
+#include <sstream>
+
+namespace Geom {
+
+/** @brief Serialize paths to SVG path data strings.
+ * You can access the generated string by calling the str() method.
+ * @ingroup Paths
+ */
+class SVGPathWriter
+    : public PathSink
+{
+public:
+    SVGPathWriter();
+    ~SVGPathWriter() {}
+
+    void moveTo(Point const &p);
+    void lineTo(Point const &p);
+    void quadTo(Point const &c, Point const &p);
+    void curveTo(Point const &c0, Point const &c1, Point const &p);
+    void arcTo(double rx, double ry, double angle,
+               bool large_arc, bool sweep, Point const &p);
+    void closePath();
+    void flush();
+
+    /// Clear any path data written so far.
+    void clear();
+
+    /** @brief Set output precision.
+     * When the parameter is negative, the path writer enters a verbatim mode
+     * which preserves all values exactly. */
+    void setPrecision(int prec);
+
+    /** @brief Enable or disable length optimization.
+     * 
+     * When set to true, the path writer will optimize the generated path data
+     * for minimum length. However, this will make the data less readable,
+     * because spaces between commands and coordinates will be omitted where
+     * unnecessary for correct parsing.
+     *
+     * When set to false, the string will be a straightforward, partially redundant
+     * representation of the passed commands, optimized for readability.
+     * Commands and coordinates will always be separated by spaces and the command
+     * symbol will not be omitted for multiple consecutive commands of the same type.
+     *
+     * Length optimization is turned off by default. */
+    void setOptimize(bool opt) { _optimize = opt; }
+
+    /** @brief Enable or disable the use of V, H, T and S commands where possible.
+     * Shorthands are turned on by default. */
+    void setUseShorthands(bool use) { _use_shorthands = use; }
+
+    /// Retrieve the generated path data string.
+    std::string str() const { return _s.str(); }
+
+private:
+    void _setCommand(char cmd);
+    std::string _formatCoord(Coord par);
+
+    std::ostringstream _s, _ns;
+    std::vector<Coord> _current_pars;
+    Point _subpath_start;
+    Point _current;
+    Point _quad_tangent;
+    Point _cubic_tangent;
+    Coord _epsilon;
+    int _precision;
+    bool _optimize;
+    bool _use_shorthands;
+    char _command;
+};
+
+std::string write_svg_path(PathVector const &pv, int prec = -1, bool optimize = false, bool shorthands = true);
+
+} // namespace Geom
+
+#endif // LIB2GEOM_SEEN_SVG_PATH_WRITER_H
+/*
+  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:encoding=utf-8:textwidth=99 :