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kicad-source/common/hash_eda.cpp
Seth Hillbrand 0b2d4d4879 Revise Copyright statement to align with TLF 
Recommendation is to avoid using the year nomenclature as this
information is already encoded in the git repo.  Avoids needing to
repeatly update.

Also updates AUTHORS.txt from current repo with contributor names
2025-01-01 14:12:04 -08:00

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2017 CERN
* Copyright The KiCad Developers, see AUTHORS.txt for contributors.
* @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 <hash.h>
#include <footprint.h>
#include <pcb_text.h>
#include <pcb_table.h>
#include <pcb_textbox.h>
#include <pcb_shape.h>
#include <pad.h>
#include <pcb_track.h>
#include <macros.h>
#include <functional>
#include <wx/log.h>
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<BASE_SET>{}( aItem->GetLayerSet() );
return ret;
}
size_t hash_fp_item( const EDA_ITEM* aItem, int aFlags )
{
size_t ret = 0;
switch( aItem->Type() )
{
case PCB_FOOTPRINT_T:
{
const FOOTPRINT* footprint = static_cast<const FOOTPRINT*>( aItem );
ret = hash_board_item( footprint, aFlags );
if( aFlags & HASH_POS )
hash_combine( ret, footprint->GetPosition().x, footprint->GetPosition().y );
if( aFlags & HASH_ROT )
hash_combine( ret, footprint->GetOrientation().AsDegrees() );
for( BOARD_ITEM* item : footprint->GraphicalItems() )
hash_combine( ret, hash_fp_item( item, aFlags ) );
for( PAD* pad : footprint->Pads() )
hash_combine( ret, hash_fp_item( static_cast<EDA_ITEM*>( pad ), aFlags ) );
}
break;
case PCB_VIA_T:
{
const PCB_VIA* via = static_cast<const PCB_VIA*>( aItem );
ret = hash<int>{}( via->GetDrillValue() );
hash_combine( ret, via->TopLayer() );
hash_combine( ret, via->BottomLayer() );
via->GetLayerSet().RunOnLayers(
[&]( PCB_LAYER_ID layer )
{
hash_combine( ret, via->GetWidth( layer ) );
hash_combine( ret, via->FlashLayer( layer ) );
} );
break;
}
case PCB_PAD_T:
{
const PAD* pad = static_cast<const PAD*>( aItem );
ret = hash<int>{}( static_cast<int>( pad->GetAttribute() ) );
auto hashPadLayer =
[&]( PCB_LAYER_ID aLayer )
{
hash_combine( ret, pad->GetShape( aLayer ) );
hash_combine( ret, pad->GetSize( aLayer ).x, pad->GetSize( aLayer ).y );
hash_combine( ret, pad->GetOffset( aLayer ).x, pad->GetOffset( aLayer ).y );
switch( pad->GetShape( PADSTACK::ALL_LAYERS ) )
{
case PAD_SHAPE::CHAMFERED_RECT:
hash_combine( ret, pad->GetChamferPositions( aLayer ) );
hash_combine( ret, pad->GetChamferRectRatio( aLayer ) );
break;
case PAD_SHAPE::ROUNDRECT:
hash_combine( ret, pad->GetRoundRectCornerRadius( aLayer ) );
break;
case PAD_SHAPE::TRAPEZOID:
hash_combine( ret, pad->GetDelta( aLayer ).x, pad->GetDelta( aLayer ).y );
break;
case PAD_SHAPE::CUSTOM:
{
auto poly = pad->GetEffectivePolygon( aLayer, ERROR_INSIDE );
for( int ii = 0; ii < poly->VertexCount(); ++ii )
{
VECTOR2I point = poly->CVertex( ii ) - pad->GetPosition();
hash_combine( ret, point.x, point.y );
}
break;
}
default:
break;
}
};
pad->Padstack().ForEachUniqueLayer( hashPadLayer );
if( pad->GetAttribute() == PAD_ATTRIB::PTH || pad->GetAttribute() == PAD_ATTRIB::NPTH )
{
hash_combine( ret, pad->GetDrillSizeX(), pad->GetDrillSizeY() );
hash_combine( ret, pad->GetDrillShape() );
pad->GetLayerSet().RunOnLayers(
[&]( PCB_LAYER_ID layer )
{
hash_combine( ret, pad->FlashLayer( layer ) );
} );
}
hash_combine( ret, hash_board_item( pad, aFlags ) );
if( aFlags & HASH_POS )
{
if( aFlags & REL_COORD )
hash_combine( ret, pad->GetFPRelativePosition().x, pad->GetFPRelativePosition().y );
else
hash_combine( ret, pad->GetPosition().x, pad->GetPosition().y );
}
if( aFlags & HASH_ROT )
hash_combine( ret, pad->GetOrientation().AsDegrees() );
if( aFlags & HASH_NET )
hash_combine( ret, pad->GetNetCode() );
}
break;
case PCB_FIELD_T:
if( !( aFlags & HASH_REF ) && static_cast<const PCB_FIELD*>( aItem )->IsReference() )
break;
if( !( aFlags & HASH_VALUE ) && static_cast<const PCB_FIELD*>( aItem )->IsValue() )
break;
KI_FALLTHROUGH;
case PCB_TEXT_T:
{
const PCB_TEXT* text = static_cast<const PCB_TEXT*>( aItem );
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() );
if( aFlags & HASH_POS )
{
VECTOR2I pos = ( aFlags & REL_COORD ) ? text->GetFPRelativePosition()
: text->GetPosition();
hash_combine( ret, pos.x, pos.y );
}
if( aFlags & HASH_ROT )
hash_combine( ret, text->GetTextAngle().AsDegrees() );
}
break;
case PCB_SHAPE_T:
{
const PCB_SHAPE* shape = static_cast<const PCB_SHAPE*>( aItem );
ret = hash_board_item( shape, aFlags );
hash_combine( ret, shape->GetShape() );
hash_combine( ret, shape->GetWidth() );
hash_combine( ret, shape->IsFilled() );
hash_combine( ret, shape->GetLineStyle() );
if( shape->GetShape() == SHAPE_T::ARC || shape->GetShape() == SHAPE_T::CIRCLE )
hash_combine( ret, shape->GetRadius() );
if( aFlags & HASH_POS )
{
std::vector<VECTOR2I> points;
points.push_back( shape->GetStart() );
points.push_back( shape->GetEnd() );
if( shape->GetShape() == SHAPE_T::CIRCLE )
points.push_back( shape->GetCenter() );
if( shape->GetShape() == SHAPE_T::ARC )
points.push_back( shape->GetArcMid() );
FOOTPRINT* parentFP = shape->GetParentFootprint();
if( shape->GetShape() == SHAPE_T::POLY )
{
const SHAPE_POLY_SET& poly = shape->GetPolyShape();
for( auto it = poly.CIterateWithHoles(); it; it++ )
points.push_back( *it );
}
if( shape->GetShape() == SHAPE_T::BEZIER )
{
points.push_back( shape->GetBezierC1() );
points.push_back( shape->GetBezierC2() );
}
if( parentFP && ( aFlags & REL_COORD ) )
{
for( VECTOR2I& point : points )
{
point -= parentFP->GetPosition();
RotatePoint( point, -parentFP->GetOrientation() );
}
}
if( aFlags & REL_POS )
{
for( VECTOR2I& point : points )
point -= shape->GetPosition();
}
for( VECTOR2I& point : points )
hash_combine( ret, point.x, point.y );
}
}
break;
case PCB_TABLECELL_T:
case PCB_TEXTBOX_T:
{
const PCB_TEXTBOX* textbox = static_cast<const PCB_TEXTBOX*>( aItem );
ret = hash_board_item( textbox, aFlags );
hash_combine( ret, textbox->GetText().ToStdString() );
hash_combine( ret, textbox->IsItalic() );
hash_combine( ret, textbox->IsBold() );
hash_combine( ret, textbox->IsMirrored() );
hash_combine( ret, textbox->GetTextWidth() );
hash_combine( ret, textbox->GetTextHeight() );
hash_combine( ret, textbox->GetHorizJustify() );
hash_combine( ret, textbox->GetVertJustify() );
if( aFlags & HASH_ROT )
hash_combine( ret, textbox->GetTextAngle().AsDegrees() );
hash_combine( ret, textbox->GetShape() );
hash_combine( ret, textbox->GetWidth() );
hash_combine( ret, textbox->GetLineStyle() );
if( aFlags & HASH_POS )
{
VECTOR2I start = textbox->GetStart();
VECTOR2I end = textbox->GetEnd();
FOOTPRINT* parentFP = textbox->GetParentFootprint();
if( parentFP && ( aFlags & REL_COORD ) )
{
start -= parentFP->GetPosition();
end -= parentFP->GetPosition();
RotatePoint( start, -parentFP->GetOrientation() );
RotatePoint( end, -parentFP->GetOrientation() );
}
hash_combine( ret, start.x );
hash_combine( ret, start.y );
hash_combine( ret, end.x );
hash_combine( ret, end.y );
}
}
break;
case PCB_TABLE_T:
{
const PCB_TABLE* table = static_cast<const PCB_TABLE*>( aItem );
ret = hash_board_item( table, aFlags );
hash_combine( ret, table->StrokeExternal() );
hash_combine( ret, table->StrokeHeader() );
hash_combine( ret, table->StrokeColumns() );
hash_combine( ret, table->StrokeRows() );
auto hash_stroke =
[&]( const STROKE_PARAMS& stroke )
{
hash_combine( ret, stroke.GetColor() );
hash_combine( ret, stroke.GetWidth() );
hash_combine( ret, stroke.GetLineStyle() );
};
hash_stroke( table->GetSeparatorsStroke() );
hash_stroke( table->GetBorderStroke() );
}
break;
default:
wxASSERT_MSG( false, "Unhandled type in function hash_fp_item() (exporter_gencad.cpp)" );
}
return ret;
}
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