kicad/libs/kimath/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/seg.h>
#include <geometry/shape.h>
#include <geometry/shape_line_chain.h>
#include <math/box2.h>
#include <math/vector2d.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 )
{}
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SHAPE_RECT( const SHAPE_RECT& aOther ) :
SHAPE( SH_RECT ),
m_p0( aOther.m_p0 ),
m_w( aOther.m_w ),
m_h( aOther.m_h )
{};
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SHAPE* Clone() const override
{
return new SHAPE_RECT( *this );
}
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/// @copydoc SHAPE::BBox()
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const BOX2I BBox( int aClearance = 0 ) const override
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{
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();
}
bool Collide( const SHAPE* aShape, int aClearance, VECTOR2I* aMTV ) const override
{
return SHAPE::Collide( aShape, aClearance, aMTV );
}
bool Collide( const SHAPE* aShape, int aClearance = 0, int* aActual = nullptr,
VECTOR2I* aLocation = nullptr ) const override
{
return SHAPE::Collide( aShape, aClearance, aActual, aLocation );
}
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/// @copydoc SHAPE::Collide()
bool Collide( const SEG& aSeg, int aClearance = 0, int* aActual = nullptr,
VECTOR2I* aLocation = nullptr ) const override;
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/**
* 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;
}
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void Move( const VECTOR2I& aVector ) override
{
m_p0 += aVector;
}
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/**
* Function Rotate()
* This function has limited utility for SHAPE_RECT as non-cartesian rotations will distort
* the rectangle. If you might need to handle non-90º rotations then the SHAPE_RECT should
* first be converted to a SHAPE_SIMPLE which can then be free-rotated.
* @param aAngle
* @param aCenter
*/
void Rotate( double aAngle, const VECTOR2I& aCenter = { 0, 0 } ) override
{
m_p0 -= aCenter;
m_p0 = m_p0.Rotate( aAngle );
m_p0 += aCenter;
if( abs( sin( aAngle ) ) == 1 )
std::swap( m_h, m_w );
}
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bool IsSolid() const override
{
return true;
}
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const SHAPE_LINE_CHAIN Outline() const
{
SHAPE_LINE_CHAIN rv;
rv.Append( m_p0 );
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rv.Append( m_p0.x, m_p0.y + m_h );
rv.Append( m_p0.x + m_w, m_p0.y + m_h );
rv.Append( m_p0.x + m_w, m_p0.y );
rv.Append( m_p0 );
rv.SetClosed( true );
return rv;
}
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private:
///> Top-left corner
VECTOR2I m_p0;
///> Width
int m_w;
///> Height
int m_h;
};
#endif // __SHAPE_RECT_H