lpe-tangent_to_curve.cpp revision 1e944d29efb206f5d0b5d1069cb098e22169d548
/** \file
* Implementation of tangent-to-curve LPE.
*/
/*
* Authors:
* Johan Engelen
* Maximilian Albert
*
* Copyright (C) Johan Engelen 2007 <j.b.c.engelen@utwente.nl>
* Copyright (C) Maximilian Albert 2008 <maximilian.albert@gmail.com>
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include "live_effects/lpe-tangent_to_curve.h"
// FIXME: The following are only needed to convert the path's SPCurve* to pwd2.
// There must be a more convenient way to achieve this.
#include "sp-path.h"
#include "libnr/n-art-bpath-2geom.h"
namespace Inkscape {
namespace LivePathEffect {
t_attach(_("Location along curve"), _("Location of the point of attachment along the curve (between 0.0 and number-of-segments)"), "t_attach", &wr, this, 0.5),
length_left(_("Length left"), _("Specifies the left end of the tangent"), "length-left", &wr, this, 150),
length_right(_("Length right"), _("Specifies the right end of the tangent"), "length-right", &wr, this, 150)
{
}
{
}
{
using namespace Geom;
// TODO: Why are positive angles measured clockwise, not counterclockwise?
return output;
}
class KnotHolderEntityAttachPt : public KnotHolderEntity
{
public:
virtual bool isLPEParam() { return true; }
virtual void onKnotUngrabbed();
};
class KnotHolderEntityLeftEnd : public KnotHolderEntity
{
public:
virtual bool isLPEParam() { return true; }
virtual void onKnotUngrabbed();
};
class KnotHolderEntityRightEnd : public KnotHolderEntity
{
public:
virtual bool isLPEParam() { return true; }
virtual void onKnotUngrabbed();
};
void
{
_("Adjust the \"left\" end of the tangent"));
_("Adjust the \"right\" end of the tangent"));
_("Adjust the point of attachment of the tangent"));
}
static LPETangentToCurve *
{
g_print ("Warning: Effect is not of type LPETangentToCurve!\n");
return NULL;
}
return static_cast<LPETangentToCurve *>(effect);
}
void
{
using namespace Geom;
// FIXME: There must be a better way of converting the path's SPCurve* to pwd2.
}
// FIXME: this should not directly ask for updating the item. It should write to SVG, which triggers updating.
}
void
{
}
void
{
}
{
}
{
return lpe->C;
}
{
return lpe->D;
}
void
{
}
void
{
}
void
{
}
} //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 :