78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

eb4caa8f4cdc2955b58dcd2de06fe770533414c8Jon A. Cruz#include <glibmm/i18n.h>

eb4caa8f4cdc2955b58dcd2de06fe770533414c8Jon A. Cruz

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix#include "live_effects/lpe-perp_bisector.h"

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix#include "display/curve.h"

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix#include "sp-path.h"

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix#include "line-geometry.h"

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix#include "sp-lpe-item.h"

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix#include <2geom/path.h>

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen#include "knot-holder-entity.h"

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen#include "knotholder.h"

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen

78f31011c08503bf0d95da30e5f6326d4dd10f8acilixnamespace Inkscape {

78f31011c08503bf0d95da30e5f6326d4dd10f8acilixnamespace LivePathEffect {

07bcf962fbc219b975e47bb9e5600a5d4fa087dfcilixnamespace PB {

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

947fb2f89245c19c5bad9dbefb9fd44c2aaed2eccilixclass KnotHolderEntityEnd : public LPEKnotHolderEntity {

947fb2f89245c19c5bad9dbefb9fd44c2aaed2eccilixpublic:

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen KnotHolderEntityEnd(LPEPerpBisector *effect) : LPEKnotHolderEntity(effect) {};

624e4bb114c588505c592e405dbad6570e5704feDiederik van Lierop void bisector_end_set(Geom::Point const &p, guint state, bool left = true);

947fb2f89245c19c5bad9dbefb9fd44c2aaed2eccilix};

947fb2f89245c19c5bad9dbefb9fd44c2aaed2eccilix

947fb2f89245c19c5bad9dbefb9fd44c2aaed2eccilixclass KnotHolderEntityLeftEnd : public KnotHolderEntityEnd {

07bcf962fbc219b975e47bb9e5600a5d4fa087dfcilixpublic:

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen KnotHolderEntityLeftEnd(LPEPerpBisector *effect) : KnotHolderEntityEnd(effect) {};

5b20351508dc029f37f23fb7add6d0b43bf47f20johanengelen virtual void knot_set(Geom::Point const &p, Geom::Point const &origin, guint state);

0b2d8abc1011ad865fce3b883ccb2587cb15cc90Johan B. C. Engelen virtual Geom::Point knot_get() const;

07bcf962fbc219b975e47bb9e5600a5d4fa087dfcilix};

07bcf962fbc219b975e47bb9e5600a5d4fa087dfcilix

947fb2f89245c19c5bad9dbefb9fd44c2aaed2eccilixclass KnotHolderEntityRightEnd : public KnotHolderEntityEnd {

07bcf962fbc219b975e47bb9e5600a5d4fa087dfcilixpublic:

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen KnotHolderEntityRightEnd(LPEPerpBisector *effect) : KnotHolderEntityEnd(effect) {};

5b20351508dc029f37f23fb7add6d0b43bf47f20johanengelen virtual void knot_set(Geom::Point const &p, Geom::Point const &origin, guint state);

0b2d8abc1011ad865fce3b883ccb2587cb15cc90Johan B. C. Engelen virtual Geom::Point knot_get() const;

07bcf962fbc219b975e47bb9e5600a5d4fa087dfcilix};

07bcf962fbc219b975e47bb9e5600a5d4fa087dfcilix

5b20351508dc029f37f23fb7add6d0b43bf47f20johanengelenGeom::Point

0b2d8abc1011ad865fce3b883ccb2587cb15cc90Johan B. C. EngelenKnotHolderEntityLeftEnd::knot_get() const {

0b2d8abc1011ad865fce3b883ccb2587cb15cc90Johan B. C. Engelen LPEPerpBisector const* lpe = dynamic_cast<LPEPerpBisector const*>(_effect);

5b20351508dc029f37f23fb7add6d0b43bf47f20johanengelen return Geom::Point(lpe->C);

07bcf962fbc219b975e47bb9e5600a5d4fa087dfcilix}

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

5b20351508dc029f37f23fb7add6d0b43bf47f20johanengelenGeom::Point

0b2d8abc1011ad865fce3b883ccb2587cb15cc90Johan B. C. EngelenKnotHolderEntityRightEnd::knot_get() const {

0b2d8abc1011ad865fce3b883ccb2587cb15cc90Johan B. C. Engelen LPEPerpBisector const* lpe = dynamic_cast<LPEPerpBisector const*>(_effect);

5b20351508dc029f37f23fb7add6d0b43bf47f20johanengelen return Geom::Point(lpe->D);

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix}

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

624e4bb114c588505c592e405dbad6570e5704feDiederik van LieropKnotHolderEntityEnd::bisector_end_set(Geom::Point const &p, guint state, bool left) {

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen LPEPerpBisector *lpe = dynamic_cast<LPEPerpBisector *>(_effect);

947fb2f89245c19c5bad9dbefb9fd44c2aaed2eccilix if (!lpe) return;

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

624e4bb114c588505c592e405dbad6570e5704feDiederik van Lierop Geom::Point const s = snap_knot_position(p, state);

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

5b20351508dc029f37f23fb7add6d0b43bf47f20johanengelen double lambda = Geom::nearest_point(s, lpe->M, lpe->perp_dir);

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix if (left) {

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix lpe->C = lpe->M + lpe->perp_dir * lambda;

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix lpe->length_left.param_set_value(lambda);

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix } else {

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix lpe->D = lpe->M + lpe->perp_dir * lambda;

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix lpe->length_right.param_set_value(-lambda);

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix }

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix // FIXME: this should not directly ask for updating the item. It should write to SVG, which triggers updating.

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix sp_lpe_item_update_patheffect (SP_LPE_ITEM(item), true, true);

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix}

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

624e4bb114c588505c592e405dbad6570e5704feDiederik van LieropKnotHolderEntityLeftEnd::knot_set(Geom::Point const &p, Geom::Point const &/*origin*/, guint state) {

624e4bb114c588505c592e405dbad6570e5704feDiederik van Lierop bisector_end_set(p, state);

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix}

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

624e4bb114c588505c592e405dbad6570e5704feDiederik van LieropKnotHolderEntityRightEnd::knot_set(Geom::Point const &p, Geom::Point const &/*origin*/, guint state) {

624e4bb114c588505c592e405dbad6570e5704feDiederik van Lierop bisector_end_set(p, state, false);

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix}

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

07bcf962fbc219b975e47bb9e5600a5d4fa087dfcilix} //namescape PB

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

78f31011c08503bf0d95da30e5f6326d4dd10f8acilixLPEPerpBisector::LPEPerpBisector(LivePathEffectObject *lpeobject) :

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix Effect(lpeobject),

b8502defa91647a317b285046a49546612f66e6dKris length_left(_("Length left:"), _("Specifies the left end of the bisector"), "length-left", &wr, this, 200),

b8502defa91647a317b285046a49546612f66e6dKris length_right(_("Length right:"), _("Specifies the right end of the bisector"), "length-right", &wr, this, 200),

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix A(0,0), B(0,0), M(0,0), C(0,0), D(0,0), perp_dir(0,0)

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix{

04c99c338ffdc6e10cb6f5c18f6f06b3f555e8ebcilix show_orig_path = true;

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen _provides_knotholder_entities = true;

04c99c338ffdc6e10cb6f5c18f6f06b3f555e8ebcilix

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix // register all your parameters here, so Inkscape knows which parameters this effect has:

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix registerParameter( dynamic_cast<Parameter *>(&length_left) );

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix registerParameter( dynamic_cast<Parameter *>(&length_right) );

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix}

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

78f31011c08503bf0d95da30e5f6326d4dd10f8acilixLPEPerpBisector::~LPEPerpBisector()

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix{

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix}

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

a39c187369a59e887255e3f704a3ababf2b10678Johan B. C. EngelenLPEPerpBisector::doOnApply (SPLPEItem const*/*lpeitem*/)

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix{

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix /* make the path a straight line */

aafa54db9000be62c009c65c411ed698a36714bacilix /**

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix}

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

78f31011c08503bf0d95da30e5f6326d4dd10f8acilixGeom::Piecewise<Geom::D2<Geom::SBasis> >

78f31011c08503bf0d95da30e5f6326d4dd10f8acilixLPEPerpBisector::doEffect_pwd2 (Geom::Piecewise<Geom::D2<Geom::SBasis> > const & pwd2_in)

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix{

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix using namespace Geom;

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix Piecewise<D2<SBasis> > output;

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix A = pwd2_in.firstValue();

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix B = pwd2_in.lastValue();

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix M = (A + B)/2;

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix perp_dir = unit_vector((B - A).ccw());

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix C = M + perp_dir * length_left;

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix D = M - perp_dir * length_right;

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix output = Piecewise<D2<SBasis> >(D2<SBasis>(Linear(C[X], D[X]), Linear(C[Y], D[Y])));

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix return output;

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix}

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. EngelenLPEPerpBisector::addKnotHolderEntities(KnotHolder *knotholder, SPDesktop *desktop, SPItem *item) {

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen {

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen KnotHolderEntity *e = new PB::KnotHolderEntityLeftEnd(this);

7655c8b8ffe3674dd7e7c74f450fb7194943c0deJon A. Cruz e->create( desktop, item, knotholder, Inkscape::CTRL_TYPE_UNKNOWN,

7655c8b8ffe3674dd7e7c74f450fb7194943c0deJon A. Cruz _("Adjust the bisector's \"left\" end") );

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen knotholder->add(e);

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen }

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen {

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen KnotHolderEntity *e = new PB::KnotHolderEntityRightEnd(this);

7655c8b8ffe3674dd7e7c74f450fb7194943c0deJon A. Cruz e->create( desktop, item, knotholder, Inkscape::CTRL_TYPE_UNKNOWN,

7655c8b8ffe3674dd7e7c74f450fb7194943c0deJon A. Cruz _("Adjust the bisector's \"right\" end") );

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen knotholder->add(e);

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen }

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen};

3cfad782faf34c654ec837780ed7b3fe95e82c2eJohan B. C. Engelen

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix} //namespace LivePathEffect

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix} /* namespace Inkscape */

78f31011c08503bf0d95da30e5f6326d4dd10f8acilix