1 files changed, 124 insertions, 0 deletions
diff --git a/src/live_effects/lpe-skeleton.cpp b/src/live_effects/lpe-skeleton.cpp
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+++ b/src/live_effects/lpe-skeleton.cpp
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+// SPDX-License-Identifier: GPL-2.0-or-later
+/**
+ * @file
+ * Minimal dummy LPE effect implementation, used as an example for a base
+ * starting class when implementing new LivePathEffects.
+ *
+ * In vi, three global search-and-replaces will let you rename everything
+ * in this and the .h file:
+ *
+ *   :%s/SKELETON/YOURNAME/g
+ *   :%s/Skeleton/Yourname/g
+ *   :%s/skeleton/yourname/g
+ */
+/* 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.
+ */
+
+#include "live_effects/lpe-skeleton.h"
+
+// TODO due to internal breakage in glibmm headers, this must be last:
+#include <glibmm/i18n.h>
+
+namespace Inkscape {
+namespace LivePathEffect {
+
+LPESkeleton::LPESkeleton(LivePathEffectObject *lpeobject) :
+    Effect(lpeobject),
+    // initialise your parameters here:
+    number(_("Float parameter"), _("just a real number like 1.4!"), "svgname", &wr, this, 1.2)
+{
+    /* uncomment the following line to have the original path displayed while the item is selected */
+    //show_orig_path = true;
+    /* uncomment the following line to enable display of the effect-specific on-canvas handles (knotholder entities) */
+    //_provides_knotholder_entities
+
+    /* register all your parameters here, so Inkscape knows which parameters this effect has: */
+    registerParameter(&number);
+}
+
+LPESkeleton::~LPESkeleton()
+= default;
+
+
+/* ########################
+ *  Choose to implement one of the doEffect functions. You can delete or comment out the others.
+ */
+
+/*
+void
+LPESkeleton::doEffect (SPCurve * curve)
+{
+    // spice this up to make the effect actually *do* something!
+}
+
+Geom::PathVector
+LPESkeleton::doEffect_path (Geom::PathVector const & path_in)
+{
+        Geom::PathVector path_out;
+
+        path_out = path_in;   // spice this up to make the effect actually *do* something!
+
+        return path_out;
+}
+*/
+
+Geom::Piecewise<Geom::D2<Geom::SBasis> >
+LPESkeleton::doEffect_pwd2 (Geom::Piecewise<Geom::D2<Geom::SBasis> > const & pwd2_in)
+{
+    Geom::Piecewise<Geom::D2<Geom::SBasis> > output;
+
+    output = pwd2_in;   // spice this up to make the effect actually *do* something!
+
+    return output;
+}
+
+/* ########################
+ *  If you want to provide effect-specific on-canvas handles (knotholder entities), define them here:
+ */
+
+/*
+namespace Skeleton {
+
+class KnotHolderEntityMyHandle : public LPEKnotHolderEntity
+{
+public:
+    // the set() and get() methods must be implemented, click() is optional
+    virtual void knot_set(Geom::Point const &p, Geom::Point const &origin, guint state);
+    virtual Geom::Point knot_get() const;
+    //virtual void knot_click(guint state);
+};
+
+} // namespace Skeleton
+
+void
+LPESkeleton::addKnotHolderEntities(KnotHolder *knotholder, SPItem *item) {
+    {
+        KnotHolderEntityMyHandle *e = new KnotHolderEntityMyHandle(this);
+        e->create( NULL, item, knotholder,
+                    _("Text describing what this handle does"),
+                    //optional: knot_shape, knot_mode, knot_color);
+        knotholder->add(e);
+    }
+};
+*/
+
+/* ######################## */
+
+} //namespace LivePathEffect
+} /* namespace Inkscape */
+
+/*
+  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 :