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+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef INKSCAPE_LPE_ROUGH_HATCHES_H
+#define INKSCAPE_LPE_ROUGH_HATCHES_H
+
+/** \file
+ * Fills an area with rough hatches.
+ */
+
+/*
+ * Authors:
+ * JFBarraud
+ *
+ * Copyright (C) JF Barraud 2008.
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "live_effects/effect.h"
+#include "live_effects/parameter/parameter.h"
+#include "live_effects/parameter/bool.h"
+#include "live_effects/parameter/random.h"
+#include "live_effects/parameter/vector.h"
+
+namespace Inkscape {
+namespace LivePathEffect {
+
+class LPERoughHatches : public Effect {
+public:
+ LPERoughHatches(LivePathEffectObject *lpeobject);
+ ~LPERoughHatches() override;
+
+ Geom::Piecewise<Geom::D2<Geom::SBasis> >
+ doEffect_pwd2 (Geom::Piecewise<Geom::D2<Geom::SBasis> > const & pwd2_in) override;
+
+ void doOnApply(SPLPEItem const *lpeitem) override;
+
+ void resetDefaults(SPItem const* item) override;
+
+ void doBeforeEffect(SPLPEItem const* item) override;
+
+ std::vector<double>
+ generateLevels(Geom::Interval const &domain, double x_org);
+
+ std::vector<std::vector<Geom::Point> >
+ linearSnake(Geom::Piecewise<Geom::D2<Geom::SBasis> > const &f, Geom::Point const &org);
+
+ Geom::Piecewise<Geom::D2<Geom::SBasis> >
+ smoothSnake(std::vector<std::vector<Geom::Point> > const &linearSnake);
+
+private:
+ double hatch_dist;
+ RandomParam dist_rdm;
+ ScalarParam growth;
+ //topfront,topback,bottomfront,bottomback handle scales.
+ ScalarParam scale_tf, scale_tb, scale_bf, scale_bb;
+
+ RandomParam top_edge_variation;
+ RandomParam bot_edge_variation;
+ RandomParam top_tgt_variation;
+ RandomParam bot_tgt_variation;
+ RandomParam top_smth_variation;
+ RandomParam bot_smth_variation;
+
+ BoolParam fat_output, do_bend;
+ ScalarParam stroke_width_top;
+ ScalarParam stroke_width_bot;
+ ScalarParam front_thickness, back_thickness;
+
+ VectorParam direction;
+ VectorParam bender;
+
+ LPERoughHatches(const LPERoughHatches&) = delete;
+ LPERoughHatches& operator=(const LPERoughHatches&) = delete;
+};
+
+} //namespace LivePathEffect
+} //namespace Inkscape
+
+#endif