vector_type.cc

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// 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 "vector_type.h"

#include "point_imp.h"
#include "other_imp.h"
#include "bogus_imp.h"

static const ArgsParser::spec argsspecVector[] =
{
  { PointImp::stype(), I18N_NOOP( "Construct a vector from this point" ),
    I18N_NOOP( "Select the start point of the new vector..." ), true },
  { PointImp::stype(), I18N_NOOP( "Construct a vector to this point" ),
    I18N_NOOP( "Select the end point of the new vector..." ), true }
};

KIG_INSTANTIATE_OBJECT_TYPE_INSTANCE( VectorType )

VectorType::VectorType()
  : ObjectABType( "Vector", argsspecVector, 2 )
{
}

VectorType::~VectorType()
{
}

const VectorType* VectorType::instance()
{
  static const VectorType t;
  return &t;
}

ObjectImp* VectorType::calcx( const Coordinate& a, const Coordinate& b ) const
{
  return new VectorImp( a, b );
}

const ObjectImpType* VectorType::resultId() const
{
  return VectorImp::stype();
}

static const ArgsParser::spec argsspecVectorSum[] =
{
  { VectorImp::stype(), I18N_NOOP( "Construct the vector sum of this vector and another one." ),
    I18N_NOOP( "Select the first of the two vectors of which you want to construct the sum..." ), false },
  { VectorImp::stype(), I18N_NOOP( "Construct the vector sum of this vector and the other one." ),
    I18N_NOOP( "Select the other of the two vectors of which you want to construct the sum..." ), false },
  { PointImp::stype(), I18N_NOOP( "Construct the vector sum starting at this point." ),
    I18N_NOOP( "Select the point to construct the sum vector in..." ), false }
};

KIG_INSTANTIATE_OBJECT_TYPE_INSTANCE( VectorSumType )

VectorSumType::VectorSumType()
  : ArgsParserObjectType( "VectorSum", argsspecVectorSum, 3 )
{
}

VectorSumType::~VectorSumType()
{
}

const VectorSumType* VectorSumType::instance()
{
  static const VectorSumType t;
  return &t;
}

ObjectImp* VectorSumType::calc( const Args& args, const KigDocument& ) const
{
  if ( ! margsparser.checkArgs( args ) ) return new InvalidImp;

  const VectorImp& a = *static_cast<const VectorImp*>( args[0] );
  const VectorImp& b = *static_cast<const VectorImp*>( args[1] );
  const PointImp& p = *static_cast<const PointImp*>( args[2] );

  return new VectorImp( p.coordinate(), p.coordinate() + a.dir() + b.dir() );
}

const ObjectImpType* VectorSumType::resultId() const
{
  return VectorImp::stype();
}