hash_eda.cpp File Reference

#include <hash_eda.h>
#include <footprint.h>
#include <fp_text.h>
#include <fp_shape.h>
#include <pad.h>
#include <functional>

Go to the source code of this file.

Functions
static size_t	hash_board_item (const BOARD_ITEM *aItem, int aFlags)
size_t	hash_fp_item (const EDA_ITEM *aItem, int aFlags)
	Calculate hash of an EDA_ITEM. More...

Function Documentation

hash_board_item()

static size_t hash_board_item ( const BOARD_ITEM *  aItem, int  aFlags  )

inlinestatic

Definition at line 38 of file hash_eda.cpp.

{
    size_t ret = 0;

    if( aFlags & HASH_LAYER )
        ret = hash<unsigned long long>{}( aItem->GetLayerSet().to_ullong() );

    return ret;
}

References BOARD_ITEM::GetLayerSet(), and HASH_LAYER.

Referenced by hash_fp_item().

hash_fp_item()

size_t hash_fp_item	(	const EDA_ITEM *	aItem,
		int	aFlags = HASH_FLAGS::HASH_ALL
	)

Calculate hash of an EDA_ITEM.

Parameters

aItem

is the item for which the hash will be computed.

Returns

Hash value.

Definition at line 49 of file hash_eda.cpp.

{
    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() );

        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_PAD_T:
    {
        const PAD* pad = static_cast<const PAD*>( aItem );

        ret = hash<int>{}( static_cast<int>( pad->GetShape() ) << 16 );
        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 );

        hash_combine( ret, hash_board_item( pad, aFlags ) );

        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 );
        }

        if( aFlags & HASH_ROT )
            hash_combine( ret, pad->GetOrientation() );

        if( aFlags & HASH_NET )
            hash_combine( ret, pad->GetNetCode() );
    }
        break;

    case PCB_FP_TEXT_T:
    {
        const FP_TEXT* text = static_cast<const FP_TEXT*>( aItem );

        if( !( aFlags & HASH_REF ) && text->GetType() == FP_TEXT::TEXT_is_REFERENCE )
            break;

        if( !( aFlags & HASH_VALUE ) && text->GetType() == FP_TEXT::TEXT_is_VALUE )
            break;

        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 )
        {
            if( aFlags & REL_COORD )
                hash_combine( ret, text->GetPos0().x, text->GetPos0().y );
            else
                hash_combine( ret, text->GetPosition().x, text->GetPosition().y );
        }

        if( aFlags & HASH_ROT )
            hash_combine( ret, text->GetTextAngle() );
    }
        break;

    case PCB_FP_SHAPE_T:
    {
        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() );
        hash_combine( ret, shape->GetRadius() );

        if( aFlags & HASH_POS )
        {
            if( aFlags & REL_COORD )
            {
                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 );
                    hash_combine( ret, shape->GetArcAngle() );
                }
            }
            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 );
                    hash_combine( ret, shape->GetArcAngle() );
                }
            }
        }
    }
        break;

    default:
        wxASSERT_MSG( false, "Unhandled type in function hash_fp_item() (exporter_gencad.cpp)" );
    }

    return ret;
}

References ARC, EDA_SHAPE::GetArcAngle(), PCB_SHAPE::GetCenter(), FP_SHAPE::GetCenter0(), EDA_SHAPE::GetEnd(), FP_SHAPE::GetEnd0(), FOOTPRINT::GetOrientation(), FOOTPRINT::GetPosition(), EDA_SHAPE::GetRadius(), EDA_SHAPE::GetShape(), EDA_SHAPE::GetStart(), FP_SHAPE::GetStart0(), EDA_SHAPE::GetWidth(), FOOTPRINT::GraphicalItems(), hash_board_item(), hash_combine(), hash_fp_item(), HASH_NET, HASH_POS, HASH_REF, HASH_ROT, HASH_VALUE, EDA_SHAPE::IsFilled(), pad, FOOTPRINT::Pads(), PCB_FOOTPRINT_T, PCB_FP_SHAPE_T, PCB_FP_TEXT_T, PCB_PAD_T, REL_COORD, text, FP_TEXT::TEXT_is_REFERENCE, FP_TEXT::TEXT_is_VALUE, and EDA_ITEM::Type().

Referenced by hash_fp_item(), and hashFootprint().