327 lines
10 KiB
C++
327 lines
10 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2004-2018 Jean-Pierre Charras, jp.charras at wanadoo.fr
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* Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
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* Copyright (C) 1992-2020 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <reporter.h>
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#include <macros.h>
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#include <board_commit.h>
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#include <cleanup_item.h>
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#include <pcb_shape.h>
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#include <fp_shape.h>
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#include <graphics_cleaner.h>
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GRAPHICS_CLEANER::GRAPHICS_CLEANER( DRAWINGS& aDrawings, FOOTPRINT* aParentFootprint,
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BOARD_COMMIT& aCommit ) :
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m_drawings( aDrawings ),
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m_parentFootprint( aParentFootprint ),
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m_commit( aCommit ),
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m_dryRun( true ),
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m_itemsList( nullptr )
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{
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}
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void GRAPHICS_CLEANER::CleanupBoard( bool aDryRun,
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std::vector<std::shared_ptr<CLEANUP_ITEM>>* aItemsList,
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bool aMergeRects, bool aDeleteRedundant )
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{
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m_dryRun = aDryRun;
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m_itemsList = aItemsList;
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// Clear the flag used to mark some segments as deleted, in dry run:
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for( BOARD_ITEM* drawing : m_drawings )
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drawing->ClearFlags( IS_DELETED );
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if( aDeleteRedundant )
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cleanupSegments();
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if( aMergeRects )
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mergeRects();
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// Clear the flag used to mark some segments:
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for( BOARD_ITEM* drawing : m_drawings )
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drawing->ClearFlags( IS_DELETED );
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}
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bool GRAPHICS_CLEANER::isNullShape( PCB_SHAPE* aShape )
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{
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switch( aShape->GetShape() )
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{
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case SHAPE_T::SEGMENT:
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case SHAPE_T::RECT:
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case SHAPE_T::ARC:
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return aShape->GetStart() == aShape->GetEnd();
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case SHAPE_T::CIRCLE:
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return aShape->GetRadius() == 0;
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case SHAPE_T::POLY:
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return aShape->GetPointCount() == 0;
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case SHAPE_T::BEZIER:
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aShape->RebuildBezierToSegmentsPointsList( aShape->GetWidth() );
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return aShape->GetBezierPoints().empty();
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default:
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UNIMPLEMENTED_FOR( aShape->SHAPE_T_asString() );
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return false;
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}
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}
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bool GRAPHICS_CLEANER::areEquivalent( PCB_SHAPE* aShape1, PCB_SHAPE* aShape2 )
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{
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if( aShape1->GetShape() != aShape2->GetShape()
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|| aShape1->GetLayer() != aShape2->GetLayer()
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|| aShape1->GetWidth() != aShape2->GetWidth() )
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{
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return false;
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}
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switch( aShape1->GetShape() )
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{
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case SHAPE_T::SEGMENT:
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case SHAPE_T::RECT:
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case SHAPE_T::CIRCLE:
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return aShape1->GetStart() == aShape2->GetStart()
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&& aShape1->GetEnd() == aShape2->GetEnd();
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case SHAPE_T::ARC:
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return aShape1->GetCenter() == aShape2->GetCenter()
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&& aShape1->GetStart() == aShape2->GetStart()
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&& aShape1->GetArcAngle() == aShape2->GetArcAngle();
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case SHAPE_T::POLY:
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// TODO
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return false;
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case SHAPE_T::BEZIER:
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return aShape1->GetBezierC1() == aShape2->GetBezierC1()
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&& aShape1->GetBezierC2() == aShape2->GetBezierC2()
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&& aShape1->GetBezierPoints() == aShape2->GetBezierPoints();
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default:
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wxFAIL_MSG( wxT( "GRAPHICS_CLEANER::areEquivalent unimplemented for " )
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+ aShape1->SHAPE_T_asString() );
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return false;
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}
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}
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void GRAPHICS_CLEANER::cleanupSegments()
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{
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// Remove duplicate segments (2 superimposed identical segments):
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for( auto it = m_drawings.begin(); it != m_drawings.end(); it++ )
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{
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PCB_SHAPE* segment = dynamic_cast<PCB_SHAPE*>( *it );
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if( !segment || segment->GetShape() != SHAPE_T::SEGMENT || segment->HasFlag( IS_DELETED ) )
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continue;
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if( isNullShape( segment ) )
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{
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std::shared_ptr<CLEANUP_ITEM> item = std::make_shared<CLEANUP_ITEM>( CLEANUP_NULL_GRAPHIC );
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item->SetItems( segment );
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m_itemsList->push_back( item );
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if( !m_dryRun )
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m_commit.Remove( segment );
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continue;
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}
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for( auto it2 = it + 1; it2 != m_drawings.end(); it2++ )
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{
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PCB_SHAPE* segment2 = dynamic_cast<PCB_SHAPE*>( *it2 );
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if( !segment2 || segment2->HasFlag( IS_DELETED ) )
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continue;
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if( areEquivalent( segment, segment2 ) )
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{
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std::shared_ptr<CLEANUP_ITEM> item = std::make_shared<CLEANUP_ITEM>( CLEANUP_DUPLICATE_GRAPHIC );
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item->SetItems( segment2 );
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m_itemsList->push_back( item );
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segment2->SetFlags( IS_DELETED );
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if( !m_dryRun )
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m_commit.Remove( segment2 );
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}
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}
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}
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}
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void GRAPHICS_CLEANER::mergeRects()
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{
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struct SIDE_CANDIDATE
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{
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SIDE_CANDIDATE( PCB_SHAPE* aShape ) :
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start( aShape->GetStart() ),
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end( aShape->GetEnd() ),
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shape( aShape )
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{
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if( start.x > end.x || start.y > end.y )
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std::swap( start, end );
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}
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wxPoint start;
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wxPoint end;
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PCB_SHAPE* shape;
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};
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std::vector<SIDE_CANDIDATE*> sides;
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std::map<wxPoint, std::vector<SIDE_CANDIDATE*>> ptMap;
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// First load all the candidates into the side vector and layer maps
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for( BOARD_ITEM* item : m_drawings )
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{
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PCB_SHAPE* shape = dynamic_cast<PCB_SHAPE*>( item );
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if( !shape || isNullShape( shape ) || shape->GetShape() != SHAPE_T::SEGMENT )
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continue;
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if( shape->GetStart().x == shape->GetEnd().x || shape->GetStart().y == shape->GetEnd().y )
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{
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sides.emplace_back( new SIDE_CANDIDATE( shape ) );
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ptMap[ sides.back()->start ].push_back( sides.back() );
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}
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}
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// Now go through the sides and try and match lines into rectangles
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for( SIDE_CANDIDATE* side : sides )
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{
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if( side->shape->HasFlag( IS_DELETED ) )
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continue;
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SIDE_CANDIDATE* left = nullptr;
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SIDE_CANDIDATE* top = nullptr;
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SIDE_CANDIDATE* right = nullptr;
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SIDE_CANDIDATE* bottom = nullptr;
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auto viable = [&]( SIDE_CANDIDATE* aCandidate ) -> bool
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{
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return aCandidate->shape->GetLayer() == side->shape->GetLayer()
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&& aCandidate->shape->GetWidth() == side->shape->GetWidth()
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&& !aCandidate->shape->HasFlag( IS_DELETED );
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};
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if( side->start.x == side->end.x )
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{
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// We've found a possible left; see if we have a top
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//
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left = side;
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for( SIDE_CANDIDATE* candidate : ptMap[ left->start ] )
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{
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if( candidate != left && viable( candidate ) )
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{
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top = candidate;
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break;
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}
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}
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}
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else if( side->start.y == side->end.y )
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{
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// We've found a possible top; see if we have a left
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//
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top = side;
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for( SIDE_CANDIDATE* candidate : ptMap[ top->start ] )
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{
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if( candidate != top && viable( candidate ) )
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{
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left = candidate;
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break;
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}
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}
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}
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if( top && left )
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{
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// See if we can fill in the other two sides
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//
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for( SIDE_CANDIDATE* candidate : ptMap[ top->end ] )
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{
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if( candidate != top && candidate != left && viable( candidate ) )
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{
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right = candidate;
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break;
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}
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}
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for( SIDE_CANDIDATE* candidate : ptMap[ left->end ] )
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{
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if( candidate != top && candidate != left && viable( candidate ) )
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{
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bottom = candidate;
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break;
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}
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}
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if( right && bottom && right->end == bottom->end )
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{
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left->shape->SetFlags( IS_DELETED );
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top->shape->SetFlags( IS_DELETED );
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right->shape->SetFlags( IS_DELETED );
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bottom->shape->SetFlags( IS_DELETED );
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std::shared_ptr<CLEANUP_ITEM> item = std::make_shared<CLEANUP_ITEM>( CLEANUP_LINES_TO_RECT );
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item->SetItems( left->shape, top->shape, right->shape, bottom->shape );
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m_itemsList->push_back( item );
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if( !m_dryRun )
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{
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PCB_SHAPE* rect;
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if( m_parentFootprint )
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rect = new FP_SHAPE( m_parentFootprint );
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else
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rect = new PCB_SHAPE();
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rect->SetShape( SHAPE_T::RECT );
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rect->SetFilled( false );
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rect->SetStart( top->start );
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rect->SetEnd( bottom->end );
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rect->SetLayer( top->shape->GetLayer() );
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rect->SetWidth( top->shape->GetWidth() );
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m_commit.Add( rect );
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m_commit.Remove( left->shape );
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m_commit.Remove( top->shape );
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m_commit.Remove( right->shape );
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m_commit.Remove( bottom->shape );
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}
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}
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}
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}
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for( SIDE_CANDIDATE* side : sides )
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delete side;
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}
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