lpe-parallel.cpp revision a39c187369a59e887255e3f704a3ababf2b10678
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix * LPE <parallel> implementation
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix * Maximilian Albert
3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen * Copyright (C) Johan Engelen 2007-2012 <j.b.c.engelen@alumnus.utwente.nl>
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix * Copyright (C) Maximilian Albert 2008 <maximilian.albert@gmail.com>
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix * Released under GNU GPL, read the file 'COPYING' for more information
b320a8d186114a5122ddc3afbe95110eb6cb10cecilixnamespace Pl {
3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelenclass KnotHolderEntityLeftEnd : public LPEKnotHolderEntity {
3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen KnotHolderEntityLeftEnd(LPEParallel *effect) : LPEKnotHolderEntity(effect) {};
5b20351508dc029f37f23fb7add6d0b43bf47f20johanengelen virtual void knot_set(Geom::Point const &p, Geom::Point const &origin, guint state);
3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelenclass KnotHolderEntityRightEnd : public LPEKnotHolderEntity {
3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen KnotHolderEntityRightEnd(LPEParallel *effect) : LPEKnotHolderEntity(effect) {};
5b20351508dc029f37f23fb7add6d0b43bf47f20johanengelen virtual void knot_set(Geom::Point const &p, Geom::Point const &origin, guint state);
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix} // namespace Pl
b320a8d186114a5122ddc3afbe95110eb6cb10cecilixLPEParallel::LPEParallel(LivePathEffectObject *lpeobject) :
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix // initialise your parameters here:
79d46cc367c4181803d9a7a327b163643f23e8a7cilix offset_pt(_("Offset"), _("Adjust the offset"), "offset_pt", &wr, this),
b8502defa91647a317b285046a49546612f66e6dKris length_left(_("Length left:"), _("Specifies the left end of the parallel"), "length-left", &wr, this, 150),
b8502defa91647a317b285046a49546612f66e6dKris length_right(_("Length right:"), _("Specifies the right end of the parallel"), "length-right", &wr, this, 150)
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix registerParameter(dynamic_cast<Parameter *>(&offset_pt));
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix registerParameter( dynamic_cast<Parameter *>(&length_left) );
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix registerParameter( dynamic_cast<Parameter *>(&length_right) );
a39c187369a59e887255e3f704a3ababf2b10678Johan B. C. EngelenLPEParallel::doOnApply (SPLPEItem const* lpeitem)
620d9f76e90641a5a91f0c45fcb9a2f07b3881dbJohan Engelen SPCurve const *curve = SP_SHAPE(lpeitem)->_curve;
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix offset_pt.param_set_and_write_new_value((A + B)/2 + dir.ccw() * 100);
b320a8d186114a5122ddc3afbe95110eb6cb10cecilixLPEParallel::doEffect_pwd2 (Geom::Piecewise<Geom::D2<Geom::SBasis> > const & pwd2_in)
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix using namespace Geom;
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix output = Piecewise<D2<SBasis> >(D2<SBasis>(Linear(C[X], D[X]), Linear(C[Y], D[Y])));
7655c8b8ffe3674dd7e7c74f450fb7194943c0deJon A. Cruzvoid LPEParallel::addKnotHolderEntities(KnotHolder *knotholder, SPDesktop *desktop, SPItem *item) {
3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen KnotHolderEntity *e = new Pl::KnotHolderEntityLeftEnd(this);
7655c8b8ffe3674dd7e7c74f450fb7194943c0deJon A. Cruz e->create( desktop, item, knotholder, Inkscape::CTRL_TYPE_UNKNOWN,
7655c8b8ffe3674dd7e7c74f450fb7194943c0deJon A. Cruz _("Adjust the \"left\" end of the parallel") );
3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen KnotHolderEntity *e = new Pl::KnotHolderEntityRightEnd(this);
7655c8b8ffe3674dd7e7c74f450fb7194943c0deJon A. Cruz e->create( desktop, item, knotholder, Inkscape::CTRL_TYPE_UNKNOWN,
7655c8b8ffe3674dd7e7c74f450fb7194943c0deJon A. Cruz _("Adjust the \"right\" end of the parallel") );
624e4bb114c588505c592e405dbad6570e5704feDiederik van LieropKnotHolderEntityLeftEnd::knot_set(Geom::Point const &p, Geom::Point const &/*origin*/, guint state)
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix using namespace Geom;
3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen LPEParallel *lpe = dynamic_cast<LPEParallel *>(_effect);
624e4bb114c588505c592e405dbad6570e5704feDiederik van Lierop Geom::Point const s = snap_knot_position(p, state);
5b20351508dc029f37f23fb7add6d0b43bf47f20johanengelen double lambda = L2(s - lpe->offset_pt) * sgn(dot(s - lpe->offset_pt, lpe->dir));
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix sp_lpe_item_update_patheffect (SP_LPE_ITEM(item), false, true);
624e4bb114c588505c592e405dbad6570e5704feDiederik van LieropKnotHolderEntityRightEnd::knot_set(Geom::Point const &p, Geom::Point const &/*origin*/, guint state)
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix using namespace Geom;
3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen LPEParallel *lpe = dynamic_cast<LPEParallel *>(_effect);
624e4bb114c588505c592e405dbad6570e5704feDiederik van Lierop Geom::Point const s = snap_knot_position(p, state);
5b20351508dc029f37f23fb7add6d0b43bf47f20johanengelen double lambda = L2(s - lpe->offset_pt) * sgn(dot(s - lpe->offset_pt, lpe->dir));
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix sp_lpe_item_update_patheffect (SP_LPE_ITEM(item), false, true);
3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen LPEParallel *lpe = dynamic_cast<LPEParallel *>(_effect);
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix return lpe->C;
3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen LPEParallel *lpe = dynamic_cast<LPEParallel *>(_effect);
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix return lpe->D;
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix} // namespace Pl
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix/* ######################## */
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix} //namespace LivePathEffect
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix} /* namespace Inkscape */
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix Local Variables:
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix c-file-style:"stroustrup"
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix indent-tabs-mode:nil
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix fill-column:99
b320a8d186114a5122ddc3afbe95110eb6cb10cecilix// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :