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diff --git a/src/live_effects/lpe-bendpath.h b/src/live_effects/lpe-bendpath.h
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+++ b/src/live_effects/lpe-bendpath.h
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+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef INKSCAPE_LPE_BENDPATH_H
+#define INKSCAPE_LPE_BENDPATH_H
+
+/*
+ * Inkscape::LPEPathAlongPath
+ *
+ * Copyright (C) Johan Engelen 2007 <j.b.c.engelen@utwente.nl>
+ * Copyright (C) Steren Giannini 2008 <steren.giannini@gmail.com>
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "live_effects/parameter/enum.h"
+#include "live_effects/effect.h"
+#include "live_effects/parameter/path.h"
+#include "live_effects/parameter/bool.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>
+
+#include "live_effects/lpegroupbbox.h"
+
+namespace Inkscape {
+namespace UI {
+namespace Toolbar {
+class PencilToolbar;
+}
+} // namespace UI
+namespace LivePathEffect {
+
+namespace BeP {
+class KnotHolderEntityWidthBendPath;
+}
+
+//for Bend path on group : we need information concerning the group Bounding box
+class LPEBendPath : public Effect, GroupBBoxEffect {
+public:
+    LPEBendPath(LivePathEffectObject *lpeobject);
+    ~LPEBendPath() override;
+
+    void doBeforeEffect (SPLPEItem const* lpeitem) override;
+    bool doOnOpen(SPLPEItem const *lpeitem) override;
+    Geom::Piecewise<Geom::D2<Geom::SBasis> > doEffect_pwd2 (Geom::Piecewise<Geom::D2<Geom::SBasis> > const & pwd2_in) override;
+    void resetDefaults(SPItem const* item) override;
+    void transform_multiply(Geom::Affine const &postmul, bool set) override;
+    void addCanvasIndicators(SPLPEItem const */*lpeitem*/, std::vector<Geom::PathVector> &hp_vec) override;
+    void addKnotHolderEntities(KnotHolder * knotholder, SPItem * item) override;
+
+    PathParam bend_path;
+
+    friend class BeP::KnotHolderEntityWidthBendPath;
+    friend class Inkscape::UI::Toolbar::PencilToolbar;
+
+protected:
+    double original_height;
+    ScalarParam prop_scale;
+private:
+    BoolParam scale_y_rel;
+    BoolParam vertical_pattern;
+    BoolParam hide_knot;
+    KnotHolderEntity * _knot_entity;
+    Geom::PathVector helper_path;
+    Geom::Piecewise<Geom::D2<Geom::SBasis> > uskeleton;
+    Geom::Piecewise<Geom::D2<Geom::SBasis> > n;
+
+    void on_pattern_pasted();
+
+    LPEBendPath(const LPEBendPath&);
+    LPEBendPath& operator=(const LPEBendPath&);
+};
+
+}; //namespace LivePathEffect
+}; //namespace Inkscape
+
+#endif