kicad/common/hash_eda.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2017 CERN
* Copyright (C) 2020-2021 KiCad Developers, see AUTHORS.txt for contributors.
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* @author Maciej Suminski <maciej.suminski@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
*/
#include <hash_eda.h>
#include <footprint.h>
#include <fp_text.h>
#include <fp_shape.h>
#include <pad.h>
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#include <functional>
using namespace std;
// Common calculation part for all BOARD_ITEMs
static inline size_t hash_board_item( const BOARD_ITEM* aItem, int aFlags )
{
size_t ret = 0;
if( aFlags & HASH_LAYER )
ret = hash<unsigned long long>{}( aItem->GetLayerSet().to_ullong() );
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return ret;
}
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size_t hash_fp_item( const EDA_ITEM* aItem, int aFlags )
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{
size_t ret = 0;
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switch( aItem->Type() )
{
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case PCB_FOOTPRINT_T:
{
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const FOOTPRINT* footprint = static_cast<const FOOTPRINT*>( aItem );
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ret = hash_board_item( footprint, aFlags );
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if( aFlags & HASH_POS )
hash_combine( ret, footprint->GetPosition().x, footprint->GetPosition().y );
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if( aFlags & HASH_ROT )
hash_combine( ret, footprint->GetOrientation() );
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for( BOARD_ITEM* item : footprint->GraphicalItems() )
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hash_combine( ret, hash_fp_item( item, aFlags ) );
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for( PAD* pad : footprint->Pads() )
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hash_combine( ret, hash_fp_item( static_cast<EDA_ITEM*>( pad ), aFlags ) );
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}
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break;
case PCB_PAD_T:
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{
const PAD* pad = static_cast<const PAD*>( aItem );
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ret = hash<int>{}( static_cast<int>( pad->GetShape() ) << 16 );
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hash_combine( ret, pad->GetDrillShape() << 18 );
hash_combine( ret, pad->GetSize().x << 8 );
hash_combine( ret, pad->GetSize().y << 9 );
hash_combine( ret, pad->GetOffset().x << 6 );
hash_combine( ret, pad->GetOffset().y << 7 );
hash_combine( ret, pad->GetDelta().x << 4 );
hash_combine( ret, pad->GetDelta().y << 5 );
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hash_combine( ret, hash_board_item( pad, aFlags ) );
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if( aFlags & HASH_POS )
{
if( aFlags & REL_COORD )
hash_combine( ret, pad->GetPos0().x, pad->GetPos0().y );
else
hash_combine( ret, pad->GetPosition().x, pad->GetPosition().y );
}
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if( aFlags & HASH_ROT )
hash_combine( ret, pad->GetOrientation() );
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if( aFlags & HASH_NET )
hash_combine( ret, pad->GetNetCode() );
}
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break;
case PCB_FP_TEXT_T:
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{
const FP_TEXT* text = static_cast<const FP_TEXT*>( aItem );
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if( !( aFlags & HASH_REF ) && text->GetType() == FP_TEXT::TEXT_is_REFERENCE )
break;
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if( !( aFlags & HASH_VALUE ) && text->GetType() == FP_TEXT::TEXT_is_VALUE )
break;
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ret = hash_board_item( text, aFlags );
hash_combine( ret, text->GetText().ToStdString() );
hash_combine( ret, text->IsItalic() );
hash_combine( ret, text->IsBold() );
hash_combine( ret, text->IsMirrored() );
hash_combine( ret, text->GetTextWidth() );
hash_combine( ret, text->GetTextHeight() );
hash_combine( ret, text->GetHorizJustify() );
hash_combine( ret, text->GetVertJustify() );
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if( aFlags & HASH_POS )
{
if( aFlags & REL_COORD )
hash_combine( ret, text->GetPos0().x, text->GetPos0().y );
else
hash_combine( ret, text->GetPosition().x, text->GetPosition().y );
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}
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if( aFlags & HASH_ROT )
hash_combine( ret, text->GetTextAngle().AsTenthsOfADegree() );
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}
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break;
case PCB_FP_SHAPE_T:
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{
const FP_SHAPE* shape = static_cast<const FP_SHAPE*>( aItem );
ret = hash_board_item( shape, aFlags );
hash_combine( ret, shape->GetShape() );
hash_combine( ret, shape->GetWidth() );
hash_combine( ret, shape->IsFilled() );
if( shape->GetShape() == SHAPE_T::ARC || shape->GetShape() == SHAPE_T::CIRCLE )
hash_combine( ret, shape->GetRadius() );
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if( aFlags & HASH_POS )
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{
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if( aFlags & REL_COORD )
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{
hash_combine( ret, shape->GetStart0().x );
hash_combine( ret, shape->GetStart0().y );
hash_combine( ret, shape->GetEnd0().x );
hash_combine( ret, shape->GetEnd0().y );
if( shape->GetShape() == SHAPE_T::ARC )
{
hash_combine( ret, shape->GetCenter0().x );
hash_combine( ret, shape->GetCenter0().y );
}
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}
else
{
hash_combine( ret, shape->GetStart().x );
hash_combine( ret, shape->GetStart().y );
hash_combine( ret, shape->GetEnd().x );
hash_combine( ret, shape->GetEnd().y );
if( shape->GetShape() == SHAPE_T::ARC )
{
hash_combine( ret, shape->GetCenter().x );
hash_combine( ret, shape->GetCenter().y );
}
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}
}
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}
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break;
default:
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wxASSERT_MSG( false, "Unhandled type in function hash_fp_item() (exporter_gencad.cpp)" );
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}
return ret;
}