You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
85 lines
2.7 KiB
85 lines
2.7 KiB
// Copyright (C) 2004 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_calcers.h"
|
|
|
|
static const ArgsParser::spec argsspecMeasureTransport[] =
|
|
{
|
|
{ CircleImp::stype(), I18N_NOOP( "Transport a measure on this circle" ) },
|
|
{ PointImp::stype(), I18N_NOOP( "Project this point onto the circle" ) },
|
|
{ SegmentImp::stype(), I18N_NOOP( "Segment to transport" ) }
|
|
};
|
|
|
|
static ArgsParser measuretransportargsparser( argsspecMeasureTransport, 3 );
|
|
|
|
std::vector<ObjectCalcer*> MeasureTransportCalcer::parents() const
|
|
{
|
|
std::vector<ObjectCalcer*> ret;
|
|
ret.push_back( mcircle );
|
|
ret.push_back( mpoint );
|
|
ret.push_back( msegment );
|
|
return ret;
|
|
}
|
|
|
|
MeasureTransportCalcer::MeasureTransportCalcer(ObjectCalcer* circle, ObjectCalcer* point, ObjectCalcer* segment )
|
|
: mcircle( circle ), mpoint( point ), msegment( segment ), mimp( 0 )
|
|
{
|
|
}
|
|
|
|
MeasureTransportCalcer::~MeasureTransportCalcer()
|
|
{
|
|
}
|
|
|
|
void MeasureTransportCalcer::calc( const KigDocument& )
|
|
{
|
|
if ( ! measuretransportargsparser.checkArgs( parents() ) )
|
|
return new InvalidImp();
|
|
|
|
if ( ! isPointOnCurve( mpoint, mcircle ) )
|
|
return new InvalidImp();
|
|
|
|
const CircleImp* c = static_cast<const CircleImp*>( mcircle->imp() );
|
|
const PointImp* p = static_cast<const PointImp*>( mpoint->imp() );
|
|
const SegmentImp* s = static_cast<const SegmentImp*>( msegment->imp() );
|
|
double param = c->getParam( p->coordinate(), doc );
|
|
double measure = s->length();
|
|
measure /= 2*c->radius()*M_PI;
|
|
param += measure;
|
|
while (param > 1) param -= 1;
|
|
|
|
const Coordinate nc = c->getPoint( param, doc );
|
|
if ( nc.valid() ) return new PointImp( nc );
|
|
else return new InvalidImp;
|
|
}
|
|
|
|
const ObjectImpType* MeasureTransportCalcer::impRequirement(
|
|
ObjectCalcer* o, const std::vector<ObjectCalcer*>& os ) const
|
|
{
|
|
if ( o->imp()->inherits( CircleImp::stype() ) )
|
|
return CircleImp::stype();
|
|
else if ( o->imp()->inherits( PointImp::stype() ) )
|
|
return PointImp::stype();
|
|
else if ( o->imp()->inherits( SegmentImp::stype() ) )
|
|
return SegmentImp::stype();
|
|
else
|
|
{
|
|
assert( false );
|
|
return 0;
|
|
}
|
|
}
|
|
|