166 lines
4.7 KiB
C++
166 lines
4.7 KiB
C++
/*
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* KiRouter - a push-and-(sometimes-)shove PCB router
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*
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* Copyright (C) 2013-2014 CERN
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* Copyright (C) 2016 KiCad Developers, see AUTHORS.txt for contributors.
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* Author: Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __PNS_SHOVE_H
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#define __PNS_SHOVE_H
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#include <vector>
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#include <stack>
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#include "pns_optimizer.h"
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#include "pns_routing_settings.h"
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#include "pns_algo_base.h"
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#include "pns_logger.h"
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#include "range.h"
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namespace PNS {
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class LINE;
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class NODE;
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class ROUTER;
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/**
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* Class SHOVE
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*
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* The actual Push and Shove algorithm.
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*/
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class SHOVE : public ALGO_BASE
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{
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public:
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enum SHOVE_STATUS
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{
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SH_OK = 0,
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SH_NULL,
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SH_INCOMPLETE,
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SH_HEAD_MODIFIED,
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SH_TRY_WALK
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};
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SHOVE( NODE* aWorld, ROUTER* aRouter );
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~SHOVE();
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virtual LOGGER* Logger() override
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{
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return &m_logger;
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}
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SHOVE_STATUS ShoveLines( const LINE& aCurrentHead );
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SHOVE_STATUS ShoveMultiLines( const ITEM_SET& aHeadSet );
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SHOVE_STATUS ShoveDraggingVia( VIA* aVia, const VECTOR2I& aWhere, VIA** aNewVia );
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SHOVE_STATUS ProcessSingleLine( LINE& aCurrent, LINE& aObstacle,
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LINE& aShoved );
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void ForceClearance ( bool aEnabled, int aClearance )
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{
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if( aEnabled )
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m_forceClearance = aClearance;
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else
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m_forceClearance = -1;
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}
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NODE* CurrentNode();
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const LINE NewHead() const;
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void SetInitialLine( LINE& aInitial );
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private:
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typedef std::vector<SHAPE_LINE_CHAIN> HULL_SET;
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typedef OPT<LINE> OPT_LINE;
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typedef std::pair<LINE, LINE> LINE_PAIR;
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typedef std::vector<LINE_PAIR> LINE_PAIR_VEC;
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struct SPRINGBACK_TAG
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{
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int64_t m_length;
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int m_segments;
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VECTOR2I m_p;
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NODE* m_node;
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ITEM_SET m_headItems;
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COST_ESTIMATOR m_cost;
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OPT_BOX2I m_affectedArea;
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};
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SHOVE_STATUS processHullSet( LINE& aCurrent, LINE& aObstacle,
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LINE& aShoved, const HULL_SET& hulls );
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bool reduceSpringback( const ITEM_SET& aHeadItems );
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bool pushSpringback( NODE* aNode, const ITEM_SET& aHeadItems,
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const COST_ESTIMATOR& aCost, const OPT_BOX2I& aAffectedArea );
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SHOVE_STATUS walkaroundLoneVia( LINE& aCurrent, LINE& aObstacle, LINE& aShoved );
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bool checkBumpDirection( const LINE& aCurrent, const LINE& aShoved ) const;
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SHOVE_STATUS onCollidingLine( LINE& aCurrent, LINE& aObstacle );
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SHOVE_STATUS onCollidingSegment( LINE& aCurrent, SEGMENT* aObstacleSeg );
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SHOVE_STATUS onCollidingSolid( LINE& aCurrent, ITEM* aObstacle );
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SHOVE_STATUS onCollidingVia( ITEM* aCurrent, VIA* aObstacleVia );
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SHOVE_STATUS onReverseCollidingVia( LINE& aCurrent, VIA* aObstacleVia );
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SHOVE_STATUS pushVia( VIA* aVia, const VECTOR2I& aForce, int aCurrentRank, bool aDryRun = false );
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OPT_BOX2I totalAffectedArea() const;
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void unwindStack( SEGMENT* aSeg );
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void unwindStack( ITEM* aItem );
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void runOptimizer( NODE* aNode );
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bool pushLine( const LINE& aL, bool aKeepCurrentOnTop = false );
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void popLine();
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LINE assembleLine( const SEGMENT* aSeg, int* aIndex = NULL );
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void replaceItems( ITEM* aOld, std::unique_ptr< ITEM > aNew );
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void replaceLine( LINE& aOld, LINE& aNew );
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OPT_BOX2I m_affectedAreaSum;
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SHOVE_STATUS shoveIteration( int aIter );
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SHOVE_STATUS shoveMainLoop();
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int getClearance( const ITEM* aA, const ITEM* aB ) const;
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std::vector<SPRINGBACK_TAG> m_nodeStack;
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std::vector<LINE> m_lineStack;
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std::vector<LINE> m_optimizerQueue;
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NODE* m_root;
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NODE* m_currentNode;
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OPT_LINE m_newHead;
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LOGGER m_logger;
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VIA* m_draggedVia;
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ITEM_SET m_draggedViaHeadSet;
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int m_iter;
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int m_forceClearance;
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bool m_multiLineMode;
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void sanityCheck( LINE* aOld, LINE* aNew );
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};
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}
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#endif // __PNS_SHOVE_H
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