aperture_macro.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 1992-2017 Jean-Pierre Charras <jp.charras at wanadoo.fr>
 * Copyright (C) 2010 SoftPLC Corporation, Dick Hollenbeck <[email protected]>
 * Copyright (C) 1992-2023 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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
 */
 
#include <gerbview.h>
#include <aperture_macro.h>
#include <gerber_draw_item.h>
 
void APERTURE_MACRO::InitLocalParams( const D_CODE* aDcode )
{
 // store the initial values coming from aDcode into m_localParamValues
 // for n parameters, they are local params $1 to $n
 m_localParamValues.clear();
 
 // Note: id_param = 1... n, not 0
 for( unsigned id_param = 1; id_param <= aDcode->GetParamCount(); id_param++ )
 m_localParamValues[id_param] = aDcode->GetParam( id_param );
 
 m_paramLevelEval = 0;
}
 
 
void APERTURE_MACRO::EvalLocalParams( const AM_PRIMITIVE& aPrimitive )
{
 // Evaluate m_localParamValues from current m_paramLevelEval to
 // aPrimitive.m_LocalParamLevel
 // if m_paramLevelEval >= m_LocalParamLevel, do nothing: the
 // m_localParamValues are already up to date
 
 if( m_paramLevelEval >= aPrimitive.m_LocalParamLevel )
 return;
 
 for( ; m_paramLevelEval < aPrimitive.m_LocalParamLevel; m_paramLevelEval++ )
 {
 AM_PARAM& am_param = m_localParamStack.at( m_paramLevelEval );
 int prm_index = am_param.GetIndex();
 
 double value = am_param.GetValueFromMacro( this );
 
 // if am_param value is not yet stored in m_localParamValues, add it.
 // if it is already in m_localParamValues, update its value;
 m_localParamValues[ prm_index ] = value;
 }
}
 
 
double APERTURE_MACRO::GetLocalParamValue( int aIndex )
{
 // return the local param value stored in m_localParamValues
 // if not existing, returns 0
 
 if( m_localParamValues.find( aIndex ) != m_localParamValues.end() )
 return m_localParamValues[ aIndex ];
 
 return 0.0;
}
 
 
void APERTURE_MACRO::AddPrimitiveToList( AM_PRIMITIVE& aPrimitive )
{
 m_primitivesList.push_back( aPrimitive );
 m_primitivesList.back().m_LocalParamLevel = m_localParamStack.size();
}
 
void APERTURE_MACRO::AddLocalParamDefToStack()
{
 m_localParamStack.push_back( AM_PARAM() );
}
 
 
AM_PARAM& APERTURE_MACRO::GetLastLocalParamDefFromStack()
{
 return m_localParamStack.back();
}
 
 
SHAPE_POLY_SET* APERTURE_MACRO::GetApertureMacroShape( const GERBER_DRAW_ITEM* aParent,
 const VECTOR2I& aShapePos )
{
 SHAPE_POLY_SET holeBuffer;
 
 m_shape.RemoveAllContours();
 D_CODE* dcode = aParent->GetDcodeDescr();
 InitLocalParams( dcode );
 
 for( AM_PRIMITIVE& prim_macro : m_primitivesList )
 {
 if( prim_macro.m_Primitive_id == AMP_COMMENT )
 continue;
 
 if( prim_macro.IsAMPrimitiveExposureOn( this ) )
 {
 prim_macro.ConvertBasicShapeToPolygon( this, m_shape );
 }
 else
 {
 prim_macro.ConvertBasicShapeToPolygon( this, holeBuffer );
 
 if( holeBuffer.OutlineCount() ) // we have a new hole in shape: remove the hole
 {
 m_shape.BooleanSubtract( holeBuffer, SHAPE_POLY_SET::PM_FAST );
 holeBuffer.RemoveAllContours();
 }
 }
 }
 
 // Merge and cleanup basic shape polygons
 m_shape.Simplify( SHAPE_POLY_SET::PM_FAST );
 
 // A hole can be is defined inside a polygon, or the polygons themselve can create
 // a hole when merged, so we must fracture the polygon to be able to drawn it
 // (i.e link holes by overlapping edges)
 m_shape.Fracture( SHAPE_POLY_SET::PM_FAST );
 
 // Move m_shape to the actual draw position:
 for( int icnt = 0; icnt < m_shape.OutlineCount(); icnt++ )
 {
 
 SHAPE_LINE_CHAIN& outline = m_shape.Outline( icnt );
 
 for( int jj = 0; jj < outline.PointCount(); jj++ )
 {
 VECTOR2I point = outline.CPoint( jj );
 point += aShapePos;
 point = aParent->GetABPosition( point );
 outline.SetPoint( jj, point );
 }
 }
 
 return &m_shape;
}