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+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef INKSCAPE_LPE_PARALLEL_H
+#define INKSCAPE_LPE_PARALLEL_H
+
+/** \file
+ * LPE <parallel> implementation
+ */
+
+/*
+ * Authors:
+ * Maximilian Albert
+ *
+ * Copyright (C) Johan Engelen 2007 <j.b.c.engelen@utwente.nl>
+ * Copyright (C) Maximilian Albert 2008 <maximilian.albert@gmail.com>
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "live_effects/effect.h"
+#include "live_effects/parameter/point.h"
+
+namespace Inkscape {
+namespace LivePathEffect {
+
+namespace Pl {
+ // we need a separate namespace to avoid clashes with LPEPerpBisector
+ class KnotHolderEntityLeftEnd;
+ class KnotHolderEntityRightEnd;
+}
+
+class LPEParallel : public Effect {
+public:
+ LPEParallel(LivePathEffectObject *lpeobject);
+ ~LPEParallel() override;
+
+ void doOnApply (SPLPEItem const* lpeitem) override;
+
+ Geom::Piecewise<Geom::D2<Geom::SBasis> > doEffect_pwd2 (Geom::Piecewise<Geom::D2<Geom::SBasis> > const & pwd2_in) override;
+
+ /* the knotholder entity classes must be declared friends */
+ friend class Pl::KnotHolderEntityLeftEnd;
+ friend class Pl::KnotHolderEntityRightEnd;
+ void addKnotHolderEntities(KnotHolder *knotholder, SPDesktop *desktop, SPItem *item);
+
+private:
+ PointParam offset_pt;
+ ScalarParam length_left;
+ ScalarParam length_right;
+
+ Geom::Point A;
+ Geom::Point B;
+ Geom::Point C;
+ Geom::Point D;
+ Geom::Point M;
+ Geom::Point N;
+ Geom::Point dir;
+
+ LPEParallel(const LPEParallel&) = delete;
+ LPEParallel& operator=(const LPEParallel&) = delete;
+};
+
+} //namespace LivePathEffect
+} //namespace Inkscape
+
+#endif
+
+/*
+ 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 :