kicad/include/geometry/shape_rect.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2013 CERN
* @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
*
* 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, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef __SHAPE_RECT_H
#define __SHAPE_RECT_H
#include <geometry/shape.h>
#include <geometry/shape_line_chain.h>
#include <geometry/shape_circle.h>
#include <geometry/seg.h>
class SHAPE_RECT : public SHAPE
{
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public:
/**
* Constructor
* Creates an empty (0-sized) rectangle
*/
SHAPE_RECT() :
SHAPE( SH_RECT ), m_w( 0 ), m_h( 0 )
{}
/**
* Constructor
* Creates a rectangle defined by top-left corner (aX0, aY0), width aW and height aH.
*/
SHAPE_RECT( int aX0, int aY0, int aW, int aH ) :
SHAPE( SH_RECT ), m_p0( aX0, aY0 ), m_w( aW ), m_h( aH )
{}
/**
* Constructor
* Creates a rectangle defined by top-left corner aP0, width aW and height aH.
*/
SHAPE_RECT( const VECTOR2I& aP0, int aW, int aH ) :
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SHAPE( SH_RECT ), m_p0( aP0 ), m_w( aW ), m_h( aH )
{}
SHAPE_RECT ( const SHAPE_RECT& aOther ) :
SHAPE( SH_RECT ),
m_p0( aOther.m_p0 ),
m_w( aOther.m_w ),
m_h( aOther.m_h )
{};
SHAPE* Clone() const
{
return new SHAPE_RECT( *this );
}
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/// @copydoc SHAPE::BBox()
const BOX2I BBox( int aClearance = 0 ) const
{
BOX2I bbox( VECTOR2I( m_p0.x - aClearance, m_p0.y - aClearance ),
VECTOR2I( m_w + 2 * aClearance, m_h + 2 * aClearance ) );
//printf("bb : %s\n",bbox.Format().c_str());
return bbox;
}
/**
* Function Diagonal()
*
* Returns length of the diagonal of the rectangle
* @return diagonal length
*/
int Diagonal() const
{
return VECTOR2I( m_w, m_h ).EuclideanNorm();
}
/// @copydoc SHAPE::Collide()
bool Collide( const SEG& aSeg, int aClearance = 0 ) const
{
//VECTOR2I pmin = VECTOR2I( std::min( aSeg.a.x, aSeg.b.x ), std::min( aSeg.a.y, aSeg.b.y ) );
//VECTOR2I pmax = VECTOR2I( std::max( aSeg.a.x, aSeg.b.x ), std::max( aSeg.a.y, aSeg.b.y ));
//BOX2I r( pmin, VECTOR2I( pmax.x - pmin.x, pmax.y - pmin.y ) );
//if( BBox( 0 ).SquaredDistance( r ) > aClearance * aClearance )
// return false;
if( BBox( 0 ).Contains( aSeg.A ) || BBox( 0 ).Contains( aSeg.B ) )
return true;
VECTOR2I vts[] = { VECTOR2I( m_p0.x, m_p0.y ),
VECTOR2I( m_p0.x, m_p0.y + m_h ),
VECTOR2I( m_p0.x + m_w, m_p0.y + m_h ),
VECTOR2I( m_p0.x + m_w, m_p0.y ),
VECTOR2I( m_p0.x, m_p0.y ) };
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for( int i = 0; i < 4; i++ )
{
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SEG s( vts[i], vts[i + 1], i );
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if( s.Distance( aSeg ) <= aClearance )
return true;
}
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return false;
}
/**
* Function GetPosition()
*
* @return top-left corner of the rectangle
*/
const VECTOR2I& GetPosition() const
{
return m_p0;
}
/**
* Function GetSize()
*
* @return size of the rectangle
*/
const VECTOR2I GetSize() const
{
return VECTOR2I( m_w, m_h );
}
/**
* Function GetWidth()
*
* @return width of the rectangle
*/
const int GetWidth() const
{
return m_w;
}
/**
* Function GetHeight()
*
* @return height of the rectangle
*/
const int GetHeight() const
{
return m_h;
}
private:
///> Top-left corner
VECTOR2I m_p0;
///> Width
int m_w;
///> Height
int m_h;
};
#endif // __SHAPE_RECT_H