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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* @brief Minimal LPE effect, see lpe-skeleton.cpp.
*/
/* Authors:
* Johan Engelen <j.b.c.engelen@alumnus.utwente.nl>
*
* Copyright (C) 2007-2012 Authors
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifndef INKSCAPE_LPE_SKELETON_H
#define INKSCAPE_LPE_SKELETON_H
#include "live_effects/effect.h"
#include "live_effects/parameter/parameter.h"
namespace Inkscape {
namespace LivePathEffect {
// each knotholder handle for your LPE requires a separate class derived from LPEKnotHolderEntity;
// define it in lpe-skeleton.cpp and add code to create it in addKnotHolderEntities
// note that the LPE parameter classes implement their own handles! So in most cases, you will
// not have to do anything like this.
/**
namespace Skeleton {
// we need a separate namespace to avoid clashes with other LPEs
class KnotHolderEntityMyHandle;
}
**/
class LPESkeleton : public Effect {
public:
LPESkeleton(LivePathEffectObject *lpeobject);
~LPESkeleton() override;
// Choose to implement one of the doEffect functions. You can delete or comment out the others.
// virtual void doEffect (SPCurve * curve);
// virtual Geom::PathVector doEffect_path (Geom::PathVector const &path_in);
Geom::Piecewise<Geom::D2<Geom::SBasis> > doEffect_pwd2 (Geom::Piecewise<Geom::D2<Geom::SBasis> > const &pwd2_in) override;
/* the knotholder entity classes (if any) can be declared friends */
//friend class Skeleton::KnotHolderEntityMyHandle;
//virtual void addKnotHolderEntities(KnotHolder *knotholder, SPItem *item);
private:
// add the parameters for your effect here:
ScalarParam number;
// there are all kinds of parameters. Check the /live_effects/parameter directory which types exist!
LPESkeleton(const LPESkeleton&) = delete;
LPESkeleton& operator=(const LPESkeleton&) = 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:fileencoding=utf-8:textwidth=99 :
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