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// SPDX-License-Identifier: GPL-2.0-or-later
/** \file
* LPE <text_label> implementation
*/
/*
* Authors:
* Maximilian Albert
* Johan Engelen
*
* Copyright (C) Maximilian Albert 2008 <maximilian.albert@gmail.com>
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include "live_effects/lpe-text_label.h"
// TODO due to internal breakage in glibmm headers, this must be last:
#include <glibmm/i18n.h>
namespace Inkscape {
namespace LivePathEffect {
LPETextLabel::LPETextLabel(LivePathEffectObject *lpeobject) :
Effect(lpeobject),
label(_("Label:"), _("Text label attached to the path"), "label", &wr, this, "This is a label")
{
registerParameter(&label);
}
LPETextLabel::~LPETextLabel()
= default;
Geom::Piecewise<Geom::D2<Geom::SBasis> >
LPETextLabel::doEffect_pwd2 (Geom::Piecewise<Geom::D2<Geom::SBasis> > const & pwd2_in)
{
using namespace Geom;
double t = (pwd2_in.cuts.front() + pwd2_in.cuts.back()) / 2;
Point pos(pwd2_in.valueAt(t));
Point dir(unit_vector(derivative(pwd2_in).valueAt(t)));
Point n(-rot90(dir) * 30);
double angle = angle_between(dir, Point(1,0));
label.setPos(pos + n);
label.setAnchor(std::sin(angle), -std::cos(angle));
return pwd2_in;
}
} //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 :
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