From 61f3ab8f23f4c924d455757bf3e65f8487521b5a Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 13 Apr 2024 13:57:42 +0200
Subject: Adding upstream version 1.3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/toys/paptest.cpp | 107 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 src/toys/paptest.cpp

(limited to 'src/toys/paptest.cpp')

diff --git a/src/toys/paptest.cpp b/src/toys/paptest.cpp
new file mode 100644
index 0000000..4ea2cd2
--- /dev/null
+++ b/src/toys/paptest.cpp
@@ -0,0 +1,107 @@
+/*
+ * A simple toy to test the path along path
+ *
+ * Copyright 2007 Johan Engelen
+ *
+ * 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.
+ *
+ */
+
+
+#include <iostream>
+#include <2geom/path-sink.h>
+#include <2geom/svg-path-parser.h>
+#include <2geom/sbasis.h>
+#include <2geom/sbasis-geometric.h>
+#include <2geom/bezier-to-sbasis.h>
+#include <2geom/sbasis-to-bezier.h>
+#include <2geom/d2.h>
+#include <2geom/piecewise.h>
+
+Geom::Piecewise<Geom::D2<Geom::SBasis> >
+doEffect_pwd2 (Geom::Piecewise<Geom::D2<Geom::SBasis> > & pwd2_in, Geom::Piecewise<Geom::D2<Geom::SBasis> > & pattern)
+{
+    using namespace Geom;
+
+    Piecewise<D2<SBasis> > uskeleton = arc_length_parametrization(pwd2_in, 2, .1);
+    uskeleton = remove_short_cuts(uskeleton,.01);
+    Piecewise<D2<SBasis> > n = rot90(derivative(uskeleton));
+    n = force_continuity(remove_short_cuts(n,.1));
+
+    D2<Piecewise<SBasis> > patternd2 = make_cuts_independent(pattern);
+    Piecewise<SBasis> x = Piecewise<SBasis>(patternd2[0]);
+    Piecewise<SBasis> y = Piecewise<SBasis>(patternd2[1]);
+    Interval pattBnds = *bounds_exact(x);
+    x -= pattBnds.min();
+    Interval pattBndsY = *bounds_exact(y);
+    y -= (pattBndsY.max()+pattBndsY.min())/2;
+
+    int nbCopies = int(uskeleton.cuts.back()/pattBnds.extent());
+    double scaling = 1;
+
+    double pattWidth = pattBnds.extent() * scaling;
+
+    if (scaling != 1.0) {
+        x*=scaling;
+    }
+
+    double offs = 0;
+    Piecewise<D2<SBasis> > output;
+    for (int i=0; i<nbCopies; i++){
+        output.concat(compose(uskeleton,x+offs)+y*compose(n,x+offs));
+        offs+=pattWidth;
+    }
+
+    return output;
+}
+
+int main(int argc, char **argv) {
+    if (argc > 1) {
+        Geom::PathVector originald = Geom::parse_svg_path(&*argv[1]);
+        Geom::Piecewise<Geom::D2<Geom::SBasis> > originaldpwd2;
+        for (const auto & i : originald) {
+            originaldpwd2.concat( i.toPwSb() );
+        }
+
+        Geom::PathVector pattern = Geom::parse_svg_path(&*argv[2]);
+        Geom::Piecewise<Geom::D2<Geom::SBasis> > patternpwd2;
+        for (const auto & i : pattern) {
+            patternpwd2.concat( i.toPwSb() );
+        }
+        
+        doEffect_pwd2(originaldpwd2, patternpwd2);
+    }
+    return 0;
+};
+
+/*
+  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 :
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