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Diffstat (limited to 'kig/misc/special_constructors.cc')
| -rw-r--r-- | kig/misc/special_constructors.cc | 1628 |
1 files changed, 1628 insertions, 0 deletions
diff --git a/kig/misc/special_constructors.cc b/kig/misc/special_constructors.cc new file mode 100644 index 00000000..04c8a097 --- /dev/null +++ b/kig/misc/special_constructors.cc @@ -0,0 +1,1628 @@ +// Copyright (C) 2003 Dominique Devriese <devriese@kde.org> + +// This program is free software; you can redistribute it and/or +// modify it under the terms of the GNU General Public License +// as published by the Free Software Foundation; either version 2 +// of the License, or (at your option) any later version. + +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License +// along with this program; if not, write to the Free Software +// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +// 02110-1301, USA. + +#include "special_constructors.h" + +#include "calcpaths.h" +#include "common.h" +#include "conic-common.h" +#include "guiaction.h" +#include "kigpainter.h" + +#include "../kig/kig_part.h" +#include "../modes/construct_mode.h" +#include "../objects/bogus_imp.h" +#include "../objects/centerofcurvature_type.h" +#include "../objects/circle_imp.h" +#include "../objects/conic_imp.h" +#include "../objects/conic_types.h" +#include "../objects/cubic_imp.h" +#include "../objects/intersection_types.h" +#include "../objects/inversion_type.h" +#include "../objects/line_imp.h" +#include "../objects/line_type.h" +#include "../objects/locus_imp.h" +#include "../objects/object_calcer.h" +#include "../objects/object_drawer.h" +#include "../objects/object_factory.h" +#include "../objects/object_holder.h" +#include "../objects/object_imp.h" +#include "../objects/object_type.h" +#include "../objects/other_imp.h" +#include "../objects/other_type.h" +#include "../objects/point_imp.h" +#include "../objects/point_type.h" +#include "../objects/polygon_imp.h" +#include "../objects/polygon_type.h" +#include "../objects/tangent_type.h" +#include "../objects/text_imp.h" +#include "../objects/transform_types.h" + +#include <qpen.h> + +#include <klocale.h> + +#include <algorithm> +#include <functional> + +class ConicConicIntersectionConstructor + : public StandardConstructorBase +{ +protected: + ArgsParser mparser; +public: + ConicConicIntersectionConstructor(); + ~ConicConicIntersectionConstructor(); + + void drawprelim( const ObjectDrawer& drawer, KigPainter& p, const std::vector<ObjectCalcer*>& parents, + const KigDocument& ) const; + std::vector<ObjectHolder*> build( const std::vector<ObjectCalcer*>& os, KigDocument& d, KigWidget& w ) const; + void plug( KigPart* doc, KigGUIAction* kact ); + + bool isTransform() const; +}; + +class ConicLineIntersectionConstructor + : public MultiObjectTypeConstructor +{ +public: + ConicLineIntersectionConstructor(); + ~ConicLineIntersectionConstructor(); +}; + +class ArcLineIntersectionConstructor + : public MultiObjectTypeConstructor +{ +public: + ArcLineIntersectionConstructor(); + ~ArcLineIntersectionConstructor(); +}; + +ConicRadicalConstructor::ConicRadicalConstructor() + : StandardConstructorBase( + I18N_NOOP( "Radical Lines for Conics" ), + I18N_NOOP( "The lines constructed through the intersections " + "of two conics. This is also defined for " + "non-intersecting conics." ), + "conicsradicalline", mparser ), + mtype( ConicRadicalType::instance() ), + mparser( mtype->argsParser().without( IntImp::stype() ) ) +{ +} + +ConicRadicalConstructor::~ConicRadicalConstructor() +{ +} + +void ConicRadicalConstructor::drawprelim( + const ObjectDrawer& drawer, KigPainter& p, const std::vector<ObjectCalcer*>& parents, const KigDocument& doc ) const +{ + if ( parents.size() == 2 && parents[0]->imp()->inherits( ConicImp::stype() ) && + parents[1]->imp()->inherits( ConicImp::stype() ) ) + { + Args args; + std::transform( parents.begin(), parents.end(), + std::back_inserter( args ), std::mem_fun( &ObjectCalcer::imp ) ); + for ( int i = -1; i < 2; i += 2 ) + { + IntImp root( i ); + IntImp zeroindex( 1 ); + args.push_back( &root ); + args.push_back( &zeroindex ); + ObjectImp* data = mtype->calc( args, doc ); + drawer.draw( *data, p, true ); + delete data; data = 0; + args.pop_back(); + args.pop_back(); + }; + }; +} + +std::vector<ObjectHolder*> ConicRadicalConstructor::build( const std::vector<ObjectCalcer*>& os, KigDocument&, KigWidget& ) const +{ + using namespace std; + std::vector<ObjectHolder*> ret; + ObjectCalcer* zeroindexcalcer = new ObjectConstCalcer( new IntImp( 1 ) ); + for ( int i = -1; i < 2; i += 2 ) + { + std::vector<ObjectCalcer*> args; + std::copy( os.begin(), os.end(), back_inserter( args ) ); + args.push_back( new ObjectConstCalcer( new IntImp( i ) ) ); + // we use only one zeroindex dataobject, so that if you switch one + // radical line around, then the other switches along.. + args.push_back( zeroindexcalcer ); + ret.push_back( + new ObjectHolder( new ObjectTypeCalcer( mtype, args ) ) ); + }; + return ret; +} + +static const struct ArgsParser::spec argsspecpp[] = +{ + { PointImp::stype(), I18N_NOOP( "Moving Point" ), + I18N_NOOP( "Select the moving point, which will be moved around while drawing the locus..." ), false }, + { PointImp::stype(), I18N_NOOP( "Following Point" ), + I18N_NOOP( "Select the following point, whose locations the locus will be drawn through..." ), true } +}; + +LocusConstructor::LocusConstructor() + : StandardConstructorBase( I18N_NOOP( "Locus" ), I18N_NOOP( "A locus" ), + "locus", margsparser ), + margsparser( argsspecpp, 2 ) +{ +} + +LocusConstructor::~LocusConstructor() +{ +} + +void LocusConstructor::drawprelim( const ObjectDrawer& drawer, KigPainter& p, const std::vector<ObjectCalcer*>& parents, + const KigDocument& ) const +{ + // this function is rather ugly, but it is necessary to do it this + // way in order to play nice with Kig's design.. + + if ( parents.size() != 2 ) return; + const ObjectTypeCalcer* constrained = dynamic_cast<ObjectTypeCalcer*>( parents.front() ); + const ObjectCalcer* moving = parents.back(); + if ( ! constrained || ! constrained->type()->inherits( ObjectType::ID_ConstrainedPointType ) ) + { + // moving is in fact the constrained point.. swap them.. + moving = parents.front(); + constrained = dynamic_cast<const ObjectTypeCalcer*>( parents.back() ); + assert( constrained ); + }; + assert( constrained->type()->inherits( ObjectType::ID_ConstrainedPointType ) ); + + const ObjectImp* oimp = constrained->parents().back()->imp(); + if( !oimp->inherits( CurveImp::stype() ) ) + oimp = constrained->parents().front()->imp(); + assert( oimp->inherits( CurveImp::stype() ) ); + const CurveImp* cimp = static_cast<const CurveImp*>( oimp ); + + ObjectHierarchy hier( constrained, moving ); + + LocusImp limp( cimp->copy(), hier ); + drawer.draw( limp, p, true ); +} + +const int LocusConstructor::wantArgs( + const std::vector<ObjectCalcer*>& os, const KigDocument&, const KigWidget& + ) const +{ + int ret = margsparser.check( os ); + if ( ret == ArgsParser::Invalid ) return ret; + else if ( os.size() != 2 ) return ret; + if ( dynamic_cast<ObjectTypeCalcer*>( os.front() ) && + static_cast<ObjectTypeCalcer*>( os.front() )->type()->inherits( ObjectType::ID_ConstrainedPointType ) ) + { + std::set<ObjectCalcer*> children = getAllChildren( os.front() ); + return children.find( os.back() ) != children.end() ? ret : ArgsParser::Invalid; + } + if ( dynamic_cast<ObjectTypeCalcer*>( os.back() ) && + static_cast<ObjectTypeCalcer*>( os.back() )->type()->inherits( ObjectType::ID_ConstrainedPointType ) ) + { + std::set<ObjectCalcer*> children = getAllChildren( os.back() ); + return children.find( os.front() ) != children.end() ? ret : ArgsParser::Invalid; + } + return ArgsParser::Invalid; +} + +std::vector<ObjectHolder*> LocusConstructor::build( const std::vector<ObjectCalcer*>& parents, KigDocument&, KigWidget& ) const +{ + std::vector<ObjectHolder*> ret; + assert( parents.size() == 2 ); + + ObjectTypeCalcer* constrained = dynamic_cast<ObjectTypeCalcer*>( parents.front() ); + ObjectCalcer* moving = parents.back(); + if ( ! constrained || ! constrained->type()->inherits( ObjectType::ID_ConstrainedPointType ) ) + { + // moving is in fact the constrained point.. swap them.. + moving = parents.front(); + constrained = dynamic_cast<ObjectTypeCalcer*>( parents.back() ); + assert( constrained ); + }; + assert( constrained->type()->inherits( ObjectType::ID_ConstrainedPointType ) ); + + ret.push_back( ObjectFactory::instance()->locus( constrained, moving ) ); + return ret; +} + +QString LocusConstructor::useText( const ObjectCalcer& o, const std::vector<ObjectCalcer*>& os, + const KigDocument&, const KigWidget& ) const +{ + if ( dynamic_cast<const ObjectTypeCalcer*>( &o ) && + static_cast<const ObjectTypeCalcer&>( o ).type()->inherits( ObjectType::ID_ConstrainedPointType ) && + ( os.empty() || !dynamic_cast<ObjectTypeCalcer*>( os[0] ) || + !static_cast<const ObjectTypeCalcer*>( os[0] )->type()->inherits( ObjectType::ID_ConstrainedPointType ) ) + ) return i18n( "Moving Point" ); + else return i18n( "Dependent Point" ); +} + +void ConicRadicalConstructor::plug( KigPart*, KigGUIAction* ) +{ +} + +void LocusConstructor::plug( KigPart*, KigGUIAction* ) +{ +} + +bool ConicRadicalConstructor::isTransform() const +{ + return mtype->isTransform(); +} + +bool LocusConstructor::isTransform() const +{ + return false; +} + +/* + * generic polygon constructor + */ + +PolygonBNPTypeConstructor::PolygonBNPTypeConstructor() + : mtype( PolygonBNPType::instance() ) +{ +} + +PolygonBNPTypeConstructor::~PolygonBNPTypeConstructor() +{ +} + +const QString PolygonBNPTypeConstructor::descriptiveName() const +{ + return i18n("Polygon by Its Vertices"); +} + +const QString PolygonBNPTypeConstructor::description() const +{ + return i18n("Construct a polygon by giving its vertices"); +} + +const QCString PolygonBNPTypeConstructor::iconFileName( const bool ) const +{ + return "kig_polygon"; +} + +const bool PolygonBNPTypeConstructor::isAlreadySelectedOK( + const std::vector<ObjectCalcer*>& os, const int& pos ) const +{ + if ( pos == 0 && os.size() >= 3 ) return true; + return false; +} + +const int PolygonBNPTypeConstructor::wantArgs( const std::vector<ObjectCalcer*>& os, + const KigDocument&, + const KigWidget& ) const +{ + int count=os.size() - 1; + + for ( int i = 0; i <= count; i++ ) + { + if ( ! ( os[i]->imp()->inherits( PointImp::stype() ) ) ) return ArgsParser::Invalid; + } + if ( count < 3 ) return ArgsParser::Valid; + if ( os[0] == os[count] ) return ArgsParser::Complete; + return ArgsParser::Valid; +} + +void PolygonBNPTypeConstructor::handleArgs( + const std::vector<ObjectCalcer*>& os, KigPart& d, + KigWidget& v ) const +{ + std::vector<ObjectHolder*> bos = build( os, d.document(), v ); + for ( std::vector<ObjectHolder*>::iterator i = bos.begin(); + i != bos.end(); ++i ) + { + (*i)->calc( d.document() ); + } + + d.addObjects( bos ); +} + +void PolygonBNPTypeConstructor::handlePrelim( + KigPainter& p, const std::vector<ObjectCalcer*>& os, + const KigDocument& d, const KigWidget& + ) const +{ + uint count = os.size(); + if ( count < 2 ) return; + + for ( uint i = 0; i < count; i++ ) + { + assert ( os[i]->imp()->inherits( PointImp::stype() ) ); + } + + std::vector<ObjectCalcer*> args = os; + p.setBrushStyle( Qt::NoBrush ); + p.setBrushColor( Qt::red ); + p.setPen( QPen ( Qt::red, 1) ); + p.setWidth( -1 ); // -1 means the default width for the object being + // drawn.. + + ObjectDrawer drawer( Qt::red ); + drawprelim( drawer, p, args, d ); +} + +QString PolygonBNPTypeConstructor::useText( const ObjectCalcer&, const std::vector<ObjectCalcer*>& os, + const KigDocument&, const KigWidget& ) const +{ + if ( os.size() > 3 ) + return i18n("... with this vertex (click on the first vertex to terminate construction)"); + else return i18n("Construct a polygon with this vertex"); +} + +QString PolygonBNPTypeConstructor::selectStatement( + const std::vector<ObjectCalcer*>&, const KigDocument&, + const KigWidget& ) const +{ + return i18n("Select a point to be a vertex of the new polygon..."); +} + +void PolygonBNPTypeConstructor::drawprelim( const ObjectDrawer& drawer, KigPainter& p, const std::vector<ObjectCalcer*>& parents, + const KigDocument& ) const +{ + if ( parents.size() < 2 ) return; + + std::vector<Coordinate> points; + + for ( uint i = 0; i < parents.size(); ++i ) + { + const Coordinate vertex = + static_cast<const PointImp*>( parents[i]->imp() )->coordinate(); + points.push_back( vertex ); + } + + if ( parents.size() == 2 ) + { + SegmentImp segment = SegmentImp( points[0], points[1] ); + drawer.draw( segment, p, true ); + } else { + PolygonImp polygon = PolygonImp( points ); + drawer.draw( polygon, p, true ); + } +} + +std::vector<ObjectHolder*> PolygonBNPTypeConstructor::build( const std::vector<ObjectCalcer*>& parents, KigDocument&, KigWidget& ) const +{ + uint count = parents.size() - 1; + assert ( count >= 3 ); + std::vector<ObjectCalcer*> args; + for ( uint i = 0; i < count; ++i ) args.push_back( parents[i] ); + ObjectTypeCalcer* calcer = new ObjectTypeCalcer( mtype, args ); + ObjectHolder* h = new ObjectHolder( calcer ); + std::vector<ObjectHolder*> ret; + ret.push_back( h ); + return ret; +} + +void PolygonBNPTypeConstructor::plug( KigPart*, KigGUIAction* ) +{ +} + +bool PolygonBNPTypeConstructor::isTransform() const +{ + return false; +} + +/* + * construction of polygon vertices + */ + +static const struct ArgsParser::spec argsspecpv[] = +{ + { PolygonImp::stype(), I18N_NOOP( "Polygon" ), + I18N_NOOP( "Construct the vertices of this polygon..." ), true } +}; + +PolygonVertexTypeConstructor::PolygonVertexTypeConstructor() + : StandardConstructorBase( I18N_NOOP( "Vertices of a Polygon" ), + I18N_NOOP( "The vertices of a polygon." ), + "polygonvertices", margsparser ), + mtype( PolygonVertexType::instance() ), + margsparser( argsspecpv, 1 ) +{ +} + +PolygonVertexTypeConstructor::~PolygonVertexTypeConstructor() +{ +} + +void PolygonVertexTypeConstructor::drawprelim( const ObjectDrawer& drawer, KigPainter& p, const std::vector<ObjectCalcer*>& parents, + const KigDocument& ) const +{ + if ( parents.size() != 1 ) return; + + const PolygonImp* polygon = dynamic_cast<const PolygonImp*>( parents.front()->imp() ); + const std::vector<Coordinate> points = polygon->points(); + + int sides = points.size(); + for ( int i = 0; i < sides; ++i ) + { + PointImp point = PointImp( points[i] ); + drawer.draw( point, p, true ); + } +} + +std::vector<ObjectHolder*> PolygonVertexTypeConstructor::build( const std::vector<ObjectCalcer*>& parents, KigDocument&, KigWidget& ) const +{ + std::vector<ObjectHolder*> ret; + assert( parents.size() == 1 ); + const PolygonImp* polygon = dynamic_cast<const PolygonImp*>( parents.front()->imp() ); + const std::vector<Coordinate> points = polygon->points(); + + int sides = points.size(); + + for ( int i = 0; i < sides; ++i ) + { + ObjectConstCalcer* d = new ObjectConstCalcer( new IntImp( i ) ); + std::vector<ObjectCalcer*> args( parents ); + args.push_back( d ); + ret.push_back( new ObjectHolder( new ObjectTypeCalcer( mtype, args ) ) ); + } + return ret; +} + +void PolygonVertexTypeConstructor::plug( KigPart*, KigGUIAction* ) +{ +} + +bool PolygonVertexTypeConstructor::isTransform() const +{ + return false; +} + +/* + * construction of polygon sides + */ + +static const struct ArgsParser::spec argsspecps[] = +{ + { PolygonImp::stype(), I18N_NOOP( "Polygon" ), + I18N_NOOP( "Construct the sides of this polygon..." ), false } +}; + +PolygonSideTypeConstructor::PolygonSideTypeConstructor() + : StandardConstructorBase( I18N_NOOP( "Sides of a Polygon" ), + I18N_NOOP( "The sides of a polygon." ), + "polygonsides", margsparser ), + mtype( PolygonSideType::instance() ), + margsparser( argsspecps, 1 ) +{ +} + +PolygonSideTypeConstructor::~PolygonSideTypeConstructor() +{ +} + +void PolygonSideTypeConstructor::drawprelim( const ObjectDrawer& drawer, KigPainter& p, const std::vector<ObjectCalcer*>& parents, + const KigDocument& ) const +{ + if ( parents.size() != 1 ) return; + + const PolygonImp* polygon = dynamic_cast<const PolygonImp*>( parents.front()->imp() ); + const std::vector<Coordinate> points = polygon->points(); + + uint sides = points.size(); + for ( uint i = 0; i < sides; ++i ) + { + uint nexti = ( i + 1 < sides )?(i + 1):0; + SegmentImp segment = SegmentImp( points[i], points[nexti] ); + drawer.draw( segment, p, true ); + } +} + +std::vector<ObjectHolder*> PolygonSideTypeConstructor::build( const std::vector<ObjectCalcer*>& parents, KigDocument&, KigWidget& ) const +{ + std::vector<ObjectHolder*> ret; + assert( parents.size() == 1 ); + const PolygonImp* polygon = dynamic_cast<const PolygonImp*>( parents.front()->imp() ); + const std::vector<Coordinate> points = polygon->points(); + + uint sides = points.size(); + + for ( uint i = 0; i < sides; ++i ) + { + ObjectConstCalcer* d = new ObjectConstCalcer( new IntImp( i ) ); + std::vector<ObjectCalcer*> args( parents ); + args.push_back( d ); + ret.push_back( new ObjectHolder( new ObjectTypeCalcer( mtype, args ) ) ); + } + return ret; +} + +void PolygonSideTypeConstructor::plug( KigPart*, KigGUIAction* ) +{ +} + +bool PolygonSideTypeConstructor::isTransform() const +{ + return false; +} + +/* + * polygon by center and vertex + */ + +PolygonBCVConstructor::PolygonBCVConstructor() + : mtype( PolygonBCVType::instance() ) +{ +} + +PolygonBCVConstructor::~PolygonBCVConstructor() +{ +} + +const QString PolygonBCVConstructor::descriptiveName() const +{ + return i18n("Regular Polygon with Given Center"); +} + +const QString PolygonBCVConstructor::description() const +{ + return i18n("Construct a regular polygon with a given center and vertex"); +} + +const QCString PolygonBCVConstructor::iconFileName( const bool ) const +{ + return "hexagonbcv"; +} + +const bool PolygonBCVConstructor::isAlreadySelectedOK( + const std::vector<ObjectCalcer*>&, const int& ) const +{ + return false; +} + +const int PolygonBCVConstructor::wantArgs( const std::vector<ObjectCalcer*>& os, + const KigDocument&, + const KigWidget& ) const +{ + if ( os.size() > 3 ) return ArgsParser::Invalid; + + uint imax = ( os.size() <= 2) ? os.size() : 2; + for ( uint i = 0; i < imax; ++i ) + if ( ! ( os[i]->imp()->inherits( PointImp::stype() ) ) ) return ArgsParser::Invalid; + + if ( os.size() < 3 ) return ArgsParser::Valid; + + if ( ! ( os[2]->imp()->inherits( BogusPointImp::stype() ) ) ) + return ArgsParser::Invalid; + + return ArgsParser::Complete; +} + +void PolygonBCVConstructor::handleArgs( + const std::vector<ObjectCalcer*>& os, KigPart& d, + KigWidget& v ) const +{ + std::vector<ObjectHolder*> bos = build( os, d.document(), v ); + for ( std::vector<ObjectHolder*>::iterator i = bos.begin(); + i != bos.end(); ++i ) + { + (*i)->calc( d.document() ); + } + + d.addObjects( bos ); +} + +void PolygonBCVConstructor::handlePrelim( + KigPainter& p, const std::vector<ObjectCalcer*>& os, + const KigDocument& d, const KigWidget& + ) const +{ + if ( os.size() < 2 ) return; + + for ( uint i = 0; i < 2; i++ ) + { + assert ( os[i]->imp()->inherits( PointImp::stype() ) ); + } + + Coordinate c = static_cast<const PointImp*>( os[0]->imp() )->coordinate(); + Coordinate v = static_cast<const PointImp*>( os[1]->imp() )->coordinate(); + + int nsides = 6; + bool moreinfo = false; + int winding = 0; // 0 means allow winding > 1 + if ( os.size() == 3 ) + { + assert ( os[2]->imp()->inherits( BogusPointImp::stype() ) ); + Coordinate cntrl = static_cast<const PointImp*>( os[2]->imp() )->coordinate(); + nsides = computeNsides( c, v, cntrl, winding ); + moreinfo = true; + } + + std::vector<ObjectCalcer*> args; + args.push_back( os[0] ); + args.push_back( os[1] ); + ObjectConstCalcer* ns = new ObjectConstCalcer( new IntImp( nsides ) ); + args.push_back( ns ); + if ( winding > 1 ) + { + ns = new ObjectConstCalcer( new IntImp( winding ) ); + args.push_back( ns ); + } + + p.setBrushStyle( Qt::NoBrush ); + p.setBrushColor( Qt::red ); + p.setPen( QPen ( Qt::red, 1) ); + p.setWidth( -1 ); // -1 means the default width for the object being + // drawn.. + + ObjectDrawer drawer( Qt::red ); + drawprelim( drawer, p, args, d ); + if ( moreinfo ) + { + p.setPointStyle( 1 ); + p.setWidth( 6 ); + double ro = 1.0/(2.5); + Coordinate where = getRotatedCoord( c, (1-ro)*c+ro*v, 4*M_PI/5.0 ); + PointImp ptn = PointImp( where ); + TextImp text = TextImp( "(5,2)", where, false ); + ptn.draw( p ); + text.draw( p ); + for ( int i = 3; i < 9; ++i ) + { + where = getRotatedCoord( c, v, 2.0*M_PI/i ); + ptn = PointImp( where ); + ptn.draw( p ); + if ( i > 5 ) continue; + text = TextImp( QString( "(%1)" ).arg(i), where, false ); + text.draw( p ); + } + p.setStyle( Qt::DotLine ); + p.setWidth( 1 ); + double radius = ( v - c ).length(); + CircleImp circle = CircleImp( c, radius ); + circle.draw( p ); + for ( int i = 2; i < 5; i++ ) + { + ro = 1.0/(i+0.5); + CircleImp circle = CircleImp( c, ro*radius ); + circle.draw( p ); + } + } + delete_all( args.begin() + 2, args.end() ); +} + +std::vector<ObjectHolder*> PolygonBCVConstructor::build( const std::vector<ObjectCalcer*>& parents, KigDocument&, KigWidget& ) const +{ + assert ( parents.size() == 3 ); + std::vector<ObjectCalcer*> args; + + Coordinate c = static_cast<const PointImp*>( parents[0]->imp() )->coordinate(); + Coordinate v = static_cast<const PointImp*>( parents[1]->imp() )->coordinate(); + Coordinate cntrl = static_cast<const PointImp*>( parents[2]->imp() )->coordinate(); + + args.push_back( parents[0] ); + args.push_back( parents[1] ); + int winding = 0; + int nsides = computeNsides( c, v, cntrl, winding ); + ObjectConstCalcer* d = new ObjectConstCalcer( new IntImp( nsides ) ); + args.push_back( d ); + if ( winding > 1 ) + { + d = new ObjectConstCalcer( new IntImp( winding ) ); + args.push_back( d ); + } + + ObjectTypeCalcer* calcer = new ObjectTypeCalcer( mtype, args ); + ObjectHolder* h = new ObjectHolder( calcer ); + std::vector<ObjectHolder*> ret; + ret.push_back( h ); + return ret; +} + +QString PolygonBCVConstructor::useText( const ObjectCalcer&, const std::vector<ObjectCalcer*>& os, + const KigDocument&, const KigWidget& ) const +{ + switch ( os.size() ) + { + case 1: + return i18n( "Construct a regular polygon with this center" ); + break; + + case 2: + return i18n( "Construct a regular polygon with this vertex" ); + break; + + case 3: + Coordinate c = static_cast<const PointImp*>( os[0]->imp() )->coordinate(); + Coordinate v = static_cast<const PointImp*>( os[1]->imp() )->coordinate(); + Coordinate cntrl = static_cast<const PointImp*>( os[2]->imp() )->coordinate(); + int winding = 0; + int nsides = computeNsides( c, v, cntrl, winding ); + + if ( winding > 1 ) + { + QString result = QString( + i18n( "Adjust the number of sides (%1/%2)" ) + ).arg( nsides ).arg( winding ); + return result; + } else + { + QString result = QString( + i18n( "Adjust the number of sides (%1)" ) + ).arg( nsides ); + return result; + } + break; + } + + return ""; +} + +QString PolygonBCVConstructor::selectStatement( + const std::vector<ObjectCalcer*>& os, const KigDocument&, + const KigWidget& ) const +{ + switch ( os.size() ) + { + case 1: + return i18n( "Select the center of the new polygon..." ); + break; + + case 2: + return i18n( "Select a vertex for the new polygon..." ); + break; + + case 3: + return i18n( "Move the cursor to get the desired number of sides..." ); + break; + } + + return ""; +} + +void PolygonBCVConstructor::drawprelim( const ObjectDrawer& drawer, KigPainter& p, const std::vector<ObjectCalcer*>& parents, + const KigDocument& doc ) const +{ + if ( parents.size() < 3 || parents.size() > 4 ) return; + + assert ( parents[0]->imp()->inherits( PointImp::stype() ) && + parents[1]->imp()->inherits( PointImp::stype() ) && + parents[2]->imp()->inherits( IntImp::stype() ) ); + + if ( parents.size() == 4 ) + assert ( parents[3]->imp()->inherits( IntImp::stype() ) ); + + Args args; + std::transform( parents.begin(), parents.end(), + std::back_inserter( args ), std::mem_fun( &ObjectCalcer::imp ) ); + + ObjectImp* data = mtype->calc( args, doc ); + drawer.draw( *data, p, true ); + delete data; + data = 0; +} + +void PolygonBCVConstructor::plug( KigPart*, KigGUIAction* ) +{ +} + +bool PolygonBCVConstructor::isTransform() const +{ + return false; +} + +Coordinate PolygonBCVConstructor::getRotatedCoord( const Coordinate& c, + const Coordinate& v, double alpha ) const +{ + double cosalpha = cos(alpha); + double sinalpha = sin(alpha); + double dx = v.x - c.x; + double dy = v.y - c.y; + return c + Coordinate( cosalpha*dx - sinalpha*dy, sinalpha*dx + cosalpha*dy ); +} + +int PolygonBCVConstructor::computeNsides ( const Coordinate& c, + const Coordinate& v, const Coordinate& cntrl, int& winding ) const +{ + Coordinate lvect = v - c; + Coordinate rvect = cntrl - c; + + double angle = atan2( rvect.y, rvect.x ) - atan2( lvect.y, lvect.x ); + angle = fabs( angle/(2*M_PI) ); + while ( angle > 1 ) angle -= 1; + if ( angle > 0.5 ) angle = 1 - angle; + + double realsides = 1.0/angle; // this is bigger that 2 + if ( angle == 0. ) realsides = 3; + if ( winding <= 0 ) // free to compute winding + { + winding = 1; + double ratio = lvect.length()/rvect.length(); + winding = int ( ratio ); + if ( winding < 1 ) winding = 1; + if ( winding > 50 ) winding = 50; + } + int nsides = int( winding*realsides + 0.5 ); // nsides/winding should be reduced! + if ( nsides > 100 ) nsides = 100; // well, 100 seems large enough! + if ( nsides < 3 ) nsides = 3; + while ( !relativePrimes ( nsides, winding ) ) ++nsides; + return nsides; +} + +/* + * ConicConic intersection... + */ + +static const ArgsParser::spec argsspectc[] = { + { ConicImp::stype(), "SHOULD NOT BE SEEN", "SHOULD NOT BE SEEN", true }, + { ConicImp::stype(), "SHOULD NOT BE SEEN", "SHOULD NOT BE SEEN", true } +}; + +ConicConicIntersectionConstructor::ConicConicIntersectionConstructor() + : StandardConstructorBase( "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "curvelineintersection", mparser ), + mparser( argsspectc, 2 ) +{ +} + +ConicConicIntersectionConstructor::~ConicConicIntersectionConstructor() +{ +} + +void ConicConicIntersectionConstructor::drawprelim( const ObjectDrawer& drawer, KigPainter& p, const std::vector<ObjectCalcer*>& parents, + const KigDocument& ) const +{ + if ( parents.size() != 2 ) return; + assert ( parents[0]->imp()->inherits( ConicImp::stype() ) && + parents[1]->imp()->inherits( ConicImp::stype() ) ); + const ConicCartesianData conica = + static_cast<const ConicImp*>( parents[0]->imp() )->cartesianData(); + const ConicCartesianData conicb = + static_cast<const ConicImp*>( parents[1]->imp() )->cartesianData(); + bool ok = true; + for ( int wr = -1; wr < 2; wr += 2 ) + { + LineData radical = calcConicRadical( conica, conicb, wr, 1, ok ); + if ( ok ) + { + for ( int wi = -1; wi < 2; wi += 2 ) + { + Coordinate c = calcConicLineIntersect( conica, radical, 0.0, wi ); + if ( c.valid() ) { + PointImp pi( c ); + drawer.draw( pi, p, true ); + } + }; + }; + }; +} + +std::vector<ObjectHolder*> ConicConicIntersectionConstructor::build( + const std::vector<ObjectCalcer*>& os, KigDocument& doc, KigWidget& ) const +{ + assert( os.size() == 2 ); + std::vector<ObjectHolder*> ret; + ObjectCalcer* conica = os[0]; + ObjectConstCalcer* zeroindexdo = new ObjectConstCalcer( new IntImp( 1 ) ); + + for ( int wr = -1; wr < 2; wr += 2 ) + { + std::vector<ObjectCalcer*> args = os; + args.push_back( new ObjectConstCalcer( new IntImp( wr ) ) ); + args.push_back( zeroindexdo ); + ObjectTypeCalcer* radical = + new ObjectTypeCalcer( ConicRadicalType::instance(), args ); + radical->calc( doc ); + for ( int wi = -1; wi < 2; wi += 2 ) + { + args.clear(); + args.push_back( conica ); + args.push_back( radical ); + args.push_back( new ObjectConstCalcer( new IntImp( wi ) ) ); + ret.push_back( + new ObjectHolder( + new ObjectTypeCalcer( + ConicLineIntersectionType::instance(), args ) ) ); + }; + }; + return ret; +} + +void ConicConicIntersectionConstructor::plug( KigPart*, KigGUIAction* ) +{ +} + +bool ConicConicIntersectionConstructor::isTransform() const +{ + return false; +} + +ConicLineIntersectionConstructor::ConicLineIntersectionConstructor() + : MultiObjectTypeConstructor( + ConicLineIntersectionType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "curvelineintersection", -1, 1 ) +{ +} + +ConicLineIntersectionConstructor::~ConicLineIntersectionConstructor() +{ +} + +ArcLineIntersectionConstructor::ArcLineIntersectionConstructor() + : MultiObjectTypeConstructor( + ArcLineIntersectionType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "curvelineintersection", -1, 1 ) +{ +} + +ArcLineIntersectionConstructor::~ArcLineIntersectionConstructor() +{ +} + +QString ConicRadicalConstructor::useText( const ObjectCalcer& o, const std::vector<ObjectCalcer*>&, + const KigDocument&, const KigWidget& ) const +{ + if ( o.imp()->inherits( CircleImp::stype() ) ) + return i18n( "Construct the Radical Lines of This Circle" ); + else + return i18n( "Construct the Radical Lines of This Conic" ); +} + +/* + * generic affinity and generic projectivity. A unique affinity can be + * obtained by specifying the image of three points (four for projectivity) + * in the end we need, besides the object to be transformed, a total of + * six point or (alternatively) two triangles; our affinity will map the + * first triangle onto the second with corresponding ordering of their + * vertices. Since we allow for two different ways of specifying the six + * points we shall use a Generic constructor, like that for intersections. + */ + +GenericAffinityConstructor::GenericAffinityConstructor() + : MergeObjectConstructor( + I18N_NOOP( "Generic Affinity" ), + I18N_NOOP( "The unique affinity that maps three points (or a triangle) onto three other points (or a triangle)" ), + "genericaffinity" ) +{ + SimpleObjectTypeConstructor* b2tr = + new SimpleObjectTypeConstructor( + AffinityB2TrType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "genericaffinity" ); + + SimpleObjectTypeConstructor* gi3p = + new SimpleObjectTypeConstructor( + AffinityGI3PType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "genericaffinity" ); + + merge( b2tr ); + merge( gi3p ); +} + +GenericAffinityConstructor::~GenericAffinityConstructor() {} + +GenericProjectivityConstructor::GenericProjectivityConstructor() + : MergeObjectConstructor( + I18N_NOOP( "Generic Projective Transformation" ), + I18N_NOOP( "The unique projective transformation that maps four points (or a quadrilateral) onto four other points (or a quadrilateral)" ), + "genericprojectivity" ) +{ + SimpleObjectTypeConstructor* b2qu = + new SimpleObjectTypeConstructor( + ProjectivityB2QuType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "genericprojectivity" ); + + SimpleObjectTypeConstructor* gi4p = + new SimpleObjectTypeConstructor( + ProjectivityGI4PType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "genericprojectivity" ); + + merge( b2qu ); + merge( gi4p ); +} + +GenericProjectivityConstructor::~GenericProjectivityConstructor() {} + +/* + * inversion of points, lines with respect to a circle + */ + +InversionConstructor::InversionConstructor() + : MergeObjectConstructor( + I18N_NOOP( "Inversion of Point, Line or Circle" ), + I18N_NOOP( "The inversion of a point, line or circle with respect to a circle" ), + "inversion" ) +{ + SimpleObjectTypeConstructor* pointobj = + new SimpleObjectTypeConstructor( + InvertPointType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "inversion" ); + + SimpleObjectTypeConstructor* lineobj = + new SimpleObjectTypeConstructor( + InvertLineType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "inversion" ); + + SimpleObjectTypeConstructor* segmentobj = + new SimpleObjectTypeConstructor( + InvertSegmentType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "inversion" ); + + SimpleObjectTypeConstructor* circleobj = + new SimpleObjectTypeConstructor( + InvertCircleType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "inversion" ); + + SimpleObjectTypeConstructor* arcobj = + new SimpleObjectTypeConstructor( + InvertArcType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "inversion" ); + + merge( arcobj ); + merge( circleobj ); + merge( pointobj ); + merge( segmentobj ); + merge( lineobj ); +} + +InversionConstructor::~InversionConstructor() {} + +/* + * Transport of Measure + */ + +MeasureTransportConstructor::MeasureTransportConstructor() + : mtype( MeasureTransportType::instance() ) +{ +} + +MeasureTransportConstructor::~MeasureTransportConstructor() +{ +} + +const QString MeasureTransportConstructor::descriptiveName() const +{ + return i18n("Measure Transport"); +} + +const QString MeasureTransportConstructor::description() const +{ + return i18n("Transport the measure of a segment or arc over a line or circle."); +} + +const QCString MeasureTransportConstructor::iconFileName( const bool ) const +{ + return "measuretransport"; +} + +const bool MeasureTransportConstructor::isAlreadySelectedOK( + const std::vector<ObjectCalcer*>&, const int& ) const +{ + return false; +} + +/* + * we want the arguments in the exact order, this makes + * the code simpler, but I guess it is also less confusing + * to the user + */ + +const int MeasureTransportConstructor::wantArgs( + const std::vector<ObjectCalcer*>& os, + const KigDocument&, + const KigWidget& ) const +{ + if ( os.size() == 0 ) return ArgsParser::Valid; + + if ( ! os[0]->imp()->inherits( SegmentImp::stype() ) && + ! os[0]->imp()->inherits( ArcImp::stype() ) ) + return ArgsParser::Invalid; + + if ( os.size() == 1 ) return ArgsParser::Valid; + + if ( ! os[1]->imp()->inherits( LineImp::stype() ) && + ! os[1]->imp()->inherits( CircleImp::stype() ) ) + return ArgsParser::Invalid; + + if ( os.size() == 2 ) return ArgsParser::Valid; + + if ( ! os[2]->imp()->inherits( PointImp::stype() ) ) + return ArgsParser::Invalid; + + // we here use the "isPointOnCurve", which relies on + // "by construction" incidence, instead of a numerical + // check + if ( ! isPointOnCurve( os[2], os[1] ) ) + return ArgsParser::Invalid; + + if ( os.size() == 3 ) return ArgsParser::Complete; + + return ArgsParser::Invalid; +} + +void MeasureTransportConstructor::handleArgs( + const std::vector<ObjectCalcer*>& os, KigPart& d, + KigWidget& v ) const +{ + std::vector<ObjectHolder*> bos = build( os, d.document(), v ); + for ( std::vector<ObjectHolder*>::iterator i = bos.begin(); + i != bos.end(); ++i ) + { + (*i)->calc( d.document() ); + } + + d.addObjects( bos ); +} + +void MeasureTransportConstructor::handlePrelim( + KigPainter& p, const std::vector<ObjectCalcer*>& os, + const KigDocument& d, const KigWidget& + ) const +{ + p.setBrushStyle( Qt::NoBrush ); + p.setBrushColor( Qt::red ); + p.setPen( QPen ( Qt::red, 1) ); + p.setWidth( -1 ); // -1 means the default width for the object being + // drawn.. + + ObjectDrawer drawer( Qt::red ); + drawprelim( drawer, p, os, d ); +} + +void MeasureTransportConstructor::drawprelim( const ObjectDrawer& drawer, + KigPainter& p, + const std::vector<ObjectCalcer*>& parents, + const KigDocument& doc ) const +{ + Args args; + using namespace std; + transform( parents.begin(), parents.end(), + back_inserter( args ), mem_fun( &ObjectCalcer::imp ) ); + ObjectImp* data = mtype->calc( args, doc ); + drawer.draw( *data, p, true ); + delete data; +} + +QString MeasureTransportConstructor::useText( const ObjectCalcer& o, + const std::vector<ObjectCalcer*>& os, + const KigDocument&, const KigWidget& ) const +{ + if ( o.imp()->inherits( SegmentImp::stype() ) ) + return i18n("Segment to transport"); + if ( o.imp()->inherits( ArcImp::stype() ) ) + return i18n("Arc to transport"); + if ( o.imp()->inherits( LineImp::stype() ) ) + return i18n("Transport a measure on this line"); + if ( o.imp()->inherits( CircleImp::stype() ) ) + return i18n("Transport a measure on this circle"); + if ( o.imp()->inherits( PointImp::stype() ) ) + { + if ( os[1]->imp()->inherits( CircleImp::stype() ) ) + return i18n("Start transport from this point of the circle"); + if ( os[1]->imp()->inherits( LineImp::stype() ) ) + return i18n("Start transport from this point of the line"); + else + return i18n("Start transport from this point of the curve"); + // well, this isn't impemented yet, should never get here + } + return ""; +} + +QString MeasureTransportConstructor::selectStatement( + const std::vector<ObjectCalcer*>&, const KigDocument&, + const KigWidget& ) const +{ +//TODO + return i18n("Select a point to be a vertex of the new polygon..."); +} + +std::vector<ObjectHolder*> MeasureTransportConstructor::build( + const std::vector<ObjectCalcer*>& parents, + KigDocument&, KigWidget& ) const +{ + assert ( parents.size() == 3 ); +// std::vector<ObjectCalcer*> args; +// for ( uint i = 0; i < count; ++i ) args.push_back( parents[i] ); + ObjectTypeCalcer* calcer = new ObjectTypeCalcer( mtype, parents ); + ObjectHolder* h = new ObjectHolder( calcer ); + std::vector<ObjectHolder*> ret; + ret.push_back( h ); + return ret; +} + +void MeasureTransportConstructor::plug( KigPart*, KigGUIAction* ) +{ +} + +bool MeasureTransportConstructor::isTransform() const +{ + return false; +} + +/* + * Generic intersection + */ + +GenericIntersectionConstructor::GenericIntersectionConstructor() + : MergeObjectConstructor( + I18N_NOOP( "Intersect" ), + I18N_NOOP( "The intersection of two objects" ), + "curvelineintersection" ) +{ + // intersection type.. + // There is one "toplevel" object_constructor, that is composed + // of multiple subconstructors.. First we build the + // subconstructors: + SimpleObjectTypeConstructor* lineline = + new SimpleObjectTypeConstructor( + LineLineIntersectionType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "curvelineintersection" ); + + ObjectConstructor* lineconic = + new ConicLineIntersectionConstructor(); + + ObjectConstructor* arcline = + new ArcLineIntersectionConstructor(); + + MultiObjectTypeConstructor* linecubic = + new MultiObjectTypeConstructor( + LineCubicIntersectionType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "curvelineintersection", 1, 2, 3 ); + + ObjectConstructor* conicconic = + new ConicConicIntersectionConstructor(); + + MultiObjectTypeConstructor* circlecircle = + new MultiObjectTypeConstructor( + CircleCircleIntersectionType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "circlecircleintersection", -1, 1 ); + + SimpleObjectTypeConstructor* polygonline = + new SimpleObjectTypeConstructor( + PolygonLineIntersectionType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "curvelineintersection" ); + + merge( lineline ); + merge( circlecircle ); + merge( lineconic ); + merge( linecubic ); + merge( conicconic ); + merge( arcline ); + merge( polygonline ); +} + +GenericIntersectionConstructor::~GenericIntersectionConstructor() +{ +} + +bool GenericIntersectionConstructor::isIntersection() const +{ + return true; +} + +QString GenericIntersectionConstructor::useText( + const ObjectCalcer& o, const std::vector<ObjectCalcer*>& os, + const KigDocument&, const KigWidget& ) const +{ + QString preamble; + switch (os.size()) + { + case 1: + if ( o.imp()->inherits( CircleImp::stype() ) ) + return i18n( "Intersect this Circle" ); + else if ( o.imp()->inherits( ConicImp::stype() ) ) + return i18n( "Intersect this Conic" ); + else if ( o.imp()->inherits( AbstractLineImp::stype() ) ) + return i18n( "Intersect this Line" ); + else if ( o.imp()->inherits( CubicImp::stype() ) ) + return i18n( "Intersect this Cubic Curve" ); + else if ( o.imp()->inherits( ArcImp::stype() ) ) + return i18n( "Intersect this Arc" ); + else if ( o.imp()->inherits( PolygonImp::stype() ) ) + return i18n( "Intersect this Polygon" ); + else assert( false ); + break; + case 2: + if ( o.imp()->inherits( CircleImp::stype() ) ) + return i18n( "with this Circle" ); + else if ( o.imp()->inherits( ConicImp::stype() ) ) + return i18n( "with this Conic" ); + else if ( o.imp()->inherits( AbstractLineImp::stype() ) ) + return i18n( "with this Line" ); + else if ( o.imp()->inherits( CubicImp::stype() ) ) + return i18n( "with this Cubic Curve" ); + else if ( o.imp()->inherits( ArcImp::stype() ) ) + return i18n( "with this Arc" ); + else if ( o.imp()->inherits( PolygonImp::stype() ) ) + return i18n( "with this Polygon" ); + else assert( false ); + break; + } + + return QString::null; +} + +static const ArgsParser::spec argsspecMidPointOfTwoPoints[] = +{ + { PointImp::stype(), I18N_NOOP( "Construct Midpoint of This Point and Another One" ), + I18N_NOOP( "Select the first of the points of which you want to construct the midpoint..." ), false }, + { PointImp::stype(), I18N_NOOP( "Construct the midpoint of this point and another one" ), + I18N_NOOP( "Select the other of the points of which to construct the midpoint..." ), false } +}; + +MidPointOfTwoPointsConstructor::MidPointOfTwoPointsConstructor() + : StandardConstructorBase( "Mid Point", + "Construct the midpoint of two points", + "bisection", mparser ), + mparser( argsspecMidPointOfTwoPoints, 2 ) +{ +} + +MidPointOfTwoPointsConstructor::~MidPointOfTwoPointsConstructor() +{ +} + +void MidPointOfTwoPointsConstructor::drawprelim( + const ObjectDrawer& drawer, KigPainter& p, const std::vector<ObjectCalcer*>& parents, + const KigDocument& ) const +{ + if ( parents.size() != 2 ) return; + assert( parents[0]->imp()->inherits( PointImp::stype() ) ); + assert( parents[1]->imp()->inherits( PointImp::stype() ) ); + const Coordinate m = + ( static_cast<const PointImp*>( parents[0]->imp() )->coordinate() + + static_cast<const PointImp*>( parents[1]->imp() )->coordinate() ) / 2; + drawer.draw( PointImp( m ), p, true ); +} + +std::vector<ObjectHolder*> MidPointOfTwoPointsConstructor::build( + const std::vector<ObjectCalcer*>& os, KigDocument& d, KigWidget& ) const +{ + ObjectTypeCalcer* seg = new ObjectTypeCalcer( SegmentABType::instance(), os ); + seg->calc( d ); + int index = seg->imp()->propertiesInternalNames().findIndex( "mid-point" ); + assert( index != -1 ); + ObjectPropertyCalcer* prop = new ObjectPropertyCalcer( seg, index ); + prop->calc( d ); + std::vector<ObjectHolder*> ret; + ret.push_back( new ObjectHolder( prop ) ); + return ret; +} + +void MidPointOfTwoPointsConstructor::plug( KigPart*, KigGUIAction* ) +{ +} + +bool MidPointOfTwoPointsConstructor::isTransform() const +{ + return false; +} + +TestConstructor::TestConstructor( const ArgsParserObjectType* type, const char* descname, + const char* desc, const char* iconfile ) + : StandardConstructorBase( descname, desc, iconfile, type->argsParser() ), + mtype( type ) +{ +} + +TestConstructor::~TestConstructor() +{ +} + +void TestConstructor::drawprelim( const ObjectDrawer&, KigPainter&, const std::vector<ObjectCalcer*>&, + const KigDocument& ) const +{ + // not used, only here because of the wrong + // ObjectConstructor-GUIAction design. See the TODO +} + +std::vector<ObjectHolder*> TestConstructor::build( const std::vector<ObjectCalcer*>&, KigDocument&, + KigWidget& ) const +{ + // not used, only here because of the wrong + // ObjectConstructor-GUIAction design. See the TODO + std::vector<ObjectHolder*> ret; + return ret; +} + +void TestConstructor::plug( KigPart*, KigGUIAction* ) +{ +} + +bool TestConstructor::isTransform() const +{ + return false; +} + +bool TestConstructor::isTest() const +{ + return true; +} + +BaseConstructMode* TestConstructor::constructMode( KigPart& doc ) +{ + return new TestConstructMode( doc, mtype ); +} + +const int TestConstructor::wantArgs( const std::vector<ObjectCalcer*>& os, + const KigDocument& d, const KigWidget& v ) const +{ + int ret = StandardConstructorBase::wantArgs( os, d, v ); + if ( ret == ArgsParser::Complete ) ret = ArgsParser::Valid; + return ret; +} + +QString GenericIntersectionConstructor::selectStatement( + const std::vector<ObjectCalcer*>& sel, const KigDocument&, + const KigWidget& ) const +{ + if ( sel.size() == 0 ) + return i18n( "Select the first object to intersect..." ); + else + return i18n( "Select the second object to intersect..." ); +} + +TangentConstructor::TangentConstructor() + : MergeObjectConstructor( + I18N_NOOP( "Tangent" ), + I18N_NOOP( "The line tangent to a curve" ), + "tangent" ) +{ + SimpleObjectTypeConstructor* conic = + new SimpleObjectTypeConstructor( + TangentConicType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "tangentconic" ); + + SimpleObjectTypeConstructor* arc = + new SimpleObjectTypeConstructor( + TangentArcType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "tangentarc" ); + + SimpleObjectTypeConstructor* cubic = + new SimpleObjectTypeConstructor( + TangentCubicType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "tangentcubic" ); + + SimpleObjectTypeConstructor* curve = + new SimpleObjectTypeConstructor( + TangentCurveType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "tangentcurve" ); + + merge( conic ); + merge( arc ); + merge( cubic ); + merge( curve ); +} + +TangentConstructor::~TangentConstructor() +{ +} + +QString TangentConstructor::useText( + const ObjectCalcer& o, const std::vector<ObjectCalcer*>&, + const KigDocument&, const KigWidget& ) const +{ + if ( o.imp()->inherits( CircleImp::stype() ) ) + return i18n( "Tangent to This Circle" ); + else if ( o.imp()->inherits( ConicImp::stype() ) ) + return i18n( "Tangent to This Conic" ); + else if ( o.imp()->inherits( ArcImp::stype() ) ) + return i18n( "Tangent to This Arc" ); + else if ( o.imp()->inherits( CubicImp::stype() ) ) + return i18n( "Tangent to This Cubic Curve" ); + else if ( o.imp()->inherits( CurveImp::stype() ) ) + return i18n( "Tangent to This Curve" ); + else if ( o.imp()->inherits( PointImp::stype() ) ) + return i18n( "Tangent at This Point" ); +// else assert( false ); + return QString::null; +} + +//QString TangentConstructor::selectStatement( +// const std::vector<ObjectCalcer*>& sel, const KigDocument&, +// const KigWidget& ) const +//{ +// if ( sel.size() == 0 ) +// return i18n( "Select the object..." ); +// else +// return i18n( "Select the point for the tangent to go through..." ); +//} + +/* + * center of curvature of a curve + */ + +CocConstructor::CocConstructor() + : MergeObjectConstructor( + I18N_NOOP( "Center Of Curvature" ), + I18N_NOOP( "The center of the osculating circle to a curve" ), + "centerofcurvature" ) +{ + SimpleObjectTypeConstructor* conic = + new SimpleObjectTypeConstructor( + CocConicType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "cocconic" ); + + SimpleObjectTypeConstructor* cubic = + new SimpleObjectTypeConstructor( + CocCubicType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "coccubic" ); + + SimpleObjectTypeConstructor* curve = + new SimpleObjectTypeConstructor( + CocCurveType::instance(), + "SHOULDNOTBESEEN", "SHOULDNOTBESEEN", + "coccurve" ); + + merge( conic ); + merge( cubic ); + merge( curve ); +} + +CocConstructor::~CocConstructor() +{ +} + +QString CocConstructor::useText( + const ObjectCalcer& o, const std::vector<ObjectCalcer*>&, + const KigDocument&, const KigWidget& ) const +{ + if ( o.imp()->inherits( ConicImp::stype() ) ) + return i18n( "Center of Curvature of This Conic" ); + else if ( o.imp()->inherits( CubicImp::stype() ) ) + return i18n( "Center of Curvature of This Cubic Curve" ); + else if ( o.imp()->inherits( CurveImp::stype() ) ) + return i18n( "Center of Curvature of This Curve" ); + else if ( o.imp()->inherits( PointImp::stype() ) ) + return i18n( "Center of Curvature at This Point" ); + return QString::null; +} + +bool relativePrimes( int n, int p ) +{ + if ( p > n ) return relativePrimes( p, n ); + assert ( p >= 0 ); + if ( p == 0 ) return false; + if ( p == 1 ) return true; + int d = int( n/p ); + return relativePrimes( p, n-d*p ); +} + +//QString CocConstructor::selectStatement( +// const std::vector<ObjectCalcer*>& sel, const KigDocument&, +// const KigWidget& ) const +//{ +// if ( sel.size() == 0 ) +// return i18n( "Select the object..." ); +// else +// return i18n( "Select the point where to compute the center of curvature..." ); +//} |