903 lines
20 KiB
C++
903 lines
20 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) 2013-2017 CERN
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* @author Maciej Suminski <maciej.suminski@cern.ch>
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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
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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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// #define CONNECTIVITY_DEBUG
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#ifndef __CONNECTIVITY_ALGO_H
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#define __CONNECTIVITY_ALGO_H
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#include <class_board.h>
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#include <class_pad.h>
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#include <class_module.h>
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#include <class_zone.h>
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#include <geometry/shape_poly_set.h>
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#include <geometry/poly_grid_partition.h>
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#include <memory>
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#include <algorithm>
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#include <functional>
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#include <vector>
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#include <deque>
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#include <intrusive_list.h>
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#include <connectivity.h>
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class CN_ITEM;
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class CN_CONNECTIVITY_ALGO_IMPL;
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class CN_RATSNEST_NODES;
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class CN_CLUSTER;
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class BOARD;
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class BOARD_CONNECTED_ITEM;
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class BOARD_ITEM;
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class ZONE_CONTAINER;
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class CN_ANCHOR
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{
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public:
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CN_ANCHOR()
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{
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m_item = nullptr;
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}
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CN_ANCHOR( const VECTOR2I& aPos, CN_ITEM* aItem )
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{
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m_pos = aPos;
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m_item = aItem;
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assert( m_item );
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}
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bool Valid() const;
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CN_ITEM* Item() const
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{
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return m_item;
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}
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BOARD_CONNECTED_ITEM* Parent() const;
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const VECTOR2I& Pos() const
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{
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return m_pos;
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}
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bool IsDirty() const;
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/// Returns tag, common identifier for connected nodes
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inline int GetTag() const
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{
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return m_tag;
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}
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/// Sets tag, common identifier for connected nodes
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inline void SetTag( int aTag )
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{
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m_tag = aTag;
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}
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/// Decides whether this node can be a ratsnest line target
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inline void SetNoLine( bool aEnable )
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{
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m_noline = aEnable;
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}
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/// Returns true if this node can be a target for ratsnest lines
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inline const bool& GetNoLine() const
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{
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return m_noline;
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}
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inline void SetCluster( std::shared_ptr<CN_CLUSTER> aCluster )
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{
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m_cluster = aCluster;
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}
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inline std::shared_ptr<CN_CLUSTER> GetCluster() const
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{
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return m_cluster;
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}
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bool IsDangling() const;
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// Tag used for unconnected items.
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static const int TAG_UNCONNECTED = -1;
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private:
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/// Position of the anchor
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VECTOR2I m_pos;
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/// Item owning the anchor
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CN_ITEM* m_item = nullptr;
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/// Tag for quick connection resolution
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int m_tag = -1;
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/// Whether it the node can be a target for ratsnest lines
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bool m_noline = false;
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/// Cluster to which the anchor belongs
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std::shared_ptr<CN_CLUSTER> m_cluster;
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};
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typedef std::shared_ptr<CN_ANCHOR> CN_ANCHOR_PTR;
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typedef std::vector<CN_ANCHOR_PTR> CN_ANCHORS;
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class CN_EDGE
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{
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public:
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CN_EDGE() {};
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CN_EDGE( CN_ANCHOR_PTR aSource, CN_ANCHOR_PTR aTarget, int aWeight = 0 ) :
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m_source( aSource ),
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m_target( aTarget ),
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m_weight( aWeight ) {}
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CN_ANCHOR_PTR GetSourceNode() const { return m_source; }
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CN_ANCHOR_PTR GetTargetNode() const { return m_target; }
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int GetWeight() const { return m_weight; }
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void SetSourceNode( const CN_ANCHOR_PTR& aNode ) { m_source = aNode; }
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void SetTargetNode( const CN_ANCHOR_PTR& aNode ) { m_target = aNode; }
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void SetWeight( unsigned int weight ) { m_weight = weight; }
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void SetVisible( bool aVisible )
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{
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m_visible = aVisible;
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}
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bool IsVisible() const
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{
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return m_visible;
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}
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const VECTOR2I GetSourcePos() const
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{
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return m_source->Pos();
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}
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const VECTOR2I GetTargetPos() const
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{
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return m_target->Pos();
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}
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private:
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CN_ANCHOR_PTR m_source;
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CN_ANCHOR_PTR m_target;
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unsigned int m_weight = 0;
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bool m_visible = true;
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};
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class CN_CLUSTER
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{
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private:
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bool m_conflicting = false;
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int m_originNet = 0;
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CN_ITEM* m_originPad = nullptr;
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std::vector<CN_ITEM*> m_items;
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public:
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CN_CLUSTER();
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~CN_CLUSTER();
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bool HasValidNet() const
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{
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return m_originNet >= 0;
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}
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int OriginNet() const
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{
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return m_originNet;
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}
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wxString OriginNetName() const;
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bool Contains( const CN_ITEM* aItem );
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bool Contains( const BOARD_CONNECTED_ITEM* aItem );
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void Dump();
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int Size() const
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{
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return m_items.size();
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}
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bool HasNet() const
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{
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return m_originNet >= 0;
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}
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bool IsOrphaned() const
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{
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return m_originPad == nullptr;
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}
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bool IsConflicting() const
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{
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return m_conflicting;
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}
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void Add( CN_ITEM* item );
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using ITER = decltype(m_items)::iterator;
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ITER begin() { return m_items.begin(); };
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ITER end() { return m_items.end(); };
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};
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typedef std::shared_ptr<CN_CLUSTER> CN_CLUSTER_PTR;
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// basic connectivity item
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class CN_ITEM : public INTRUSIVE_LIST<CN_ITEM>
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{
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private:
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BOARD_CONNECTED_ITEM* m_parent;
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using CONNECTED_ITEMS = std::vector<CN_ITEM*>;
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///> list of items physically connected (touching)
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CONNECTED_ITEMS m_connected;
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CN_ANCHORS m_anchors;
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///> visited flag for the BFS scan
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bool m_visited;
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///> can the net propagator modify the netcode?
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bool m_canChangeNet;
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///> valid flag, used to identify garbage items (we use lazy removal)
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bool m_valid;
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///> dirty flag, used to identify recently added item not yet scanned into the connectivity search
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bool m_dirty;
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public:
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void Dump();
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CN_ITEM( BOARD_CONNECTED_ITEM* aParent, bool aCanChangeNet, int aAnchorCount = 2 )
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{
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m_parent = aParent;
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m_canChangeNet = aCanChangeNet;
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m_visited = false;
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m_valid = true;
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m_dirty = true;
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m_anchors.reserve( 2 );
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}
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virtual ~CN_ITEM() {};
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CN_ANCHOR_PTR AddAnchor( const VECTOR2I& aPos )
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{
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m_anchors.emplace_back( std::make_shared<CN_ANCHOR>( aPos, this ) );
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//printf("%p add %d\n", this, m_anchors.size() );
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return m_anchors.back();
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}
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CN_ANCHORS& Anchors()
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{
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return m_anchors;
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}
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void SetValid( bool aValid )
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{
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m_valid = aValid;
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}
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bool Valid() const
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{
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return m_valid;
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}
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void SetDirty( bool aDirty )
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{
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m_dirty = aDirty;
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}
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bool Dirty() const
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{
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return m_dirty;
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}
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BOARD_CONNECTED_ITEM* Parent() const
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{
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return m_parent;
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}
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const CONNECTED_ITEMS& ConnectedItems() const
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{
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return m_connected;
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}
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void ClearConnections()
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{
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m_connected.clear();
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}
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void SetVisited( bool aVisited )
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{
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m_visited = aVisited;
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}
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bool Visited() const
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{
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return m_visited;
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}
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bool CanChangeNet() const
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{
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return m_canChangeNet;
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}
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static void Connect( CN_ITEM* a, CN_ITEM* b )
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{
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bool foundA = false, foundB = false;
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for( auto item : a->m_connected )
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{
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if( item == b )
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{
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foundA = true;
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break;
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}
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}
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for( auto item : b->m_connected )
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{
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if( item == a )
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{
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foundB = true;
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break;
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}
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}
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if( !foundA )
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a->m_connected.push_back( b );
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if( !foundB )
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b->m_connected.push_back( a );
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}
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void RemoveInvalidRefs();
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virtual int AnchorCount() const;
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virtual const VECTOR2I GetAnchor( int n ) const;
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int Net() const;
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};
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typedef std::shared_ptr<CN_ITEM> CN_ITEM_PTR;
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class CN_LIST
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{
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private:
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bool m_dirty;
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std::vector<CN_ANCHOR_PTR> m_anchors;
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protected:
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std::vector<CN_ITEM*> m_items;
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void addAnchor( VECTOR2I pos, CN_ITEM* item )
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{
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m_anchors.push_back( item->AddAnchor( pos ) );
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}
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private:
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void sort()
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{
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if( m_dirty )
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{
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std::sort( m_anchors.begin(), m_anchors.end() );
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m_dirty = false;
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}
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}
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public:
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CN_LIST()
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{
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m_dirty = false;
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}
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void Clear()
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{
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for( auto item : m_items )
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delete item;
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m_items.clear();
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}
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using ITER = decltype(m_items)::iterator;
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ITER begin() { return m_items.begin(); };
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ITER end() { return m_items.end(); };
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std::vector<CN_ANCHOR_PTR>& Anchors() { return m_anchors; }
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template <class T>
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void FindNearby( VECTOR2I aPosition, int aDistMax, T aFunc, bool aDirtyOnly = false );
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template <class T>
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void FindNearby( BOX2I aBBox, T aFunc, bool aDirtyOnly = false );
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void SetDirty( bool aDirty = true )
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{
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m_dirty = aDirty;
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}
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bool IsDirty() const
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{
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return m_dirty;
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}
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void ClearConnections()
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{
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for( auto& anchor : m_anchors )
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anchor->Item()->ClearConnections();
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}
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void RemoveInvalidItems( std::vector<CN_ITEM*>& aGarbage );
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void ClearDirtyFlags()
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{
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for( auto item : m_items )
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item->SetDirty( false );
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SetDirty( false );
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}
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void MarkAllAsDirty()
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{
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for( auto item : m_items )
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item->SetDirty( true );
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SetDirty( true );
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}
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int Size() const
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{
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return m_items.size();
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}
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};
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class CN_PAD_LIST : public CN_LIST
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{
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public:
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CN_ITEM* Add( D_PAD* pad )
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{
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auto item = new CN_ITEM( pad, false, 2 );
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addAnchor( pad->ShapePos(), item );
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m_items.push_back( item );
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SetDirty();
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return item;
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}
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};
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class CN_TRACK_LIST : public CN_LIST
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{
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public:
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CN_ITEM* Add( TRACK* track )
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{
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auto item = new CN_ITEM( track, true );
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m_items.push_back( item );
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addAnchor( track->GetStart(), item );
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addAnchor( track->GetEnd(), item );
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SetDirty();
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return item;
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}
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};
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class CN_VIA_LIST : public CN_LIST
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{
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public:
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CN_ITEM* Add( VIA* via )
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{
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auto item = new CN_ITEM( via, true );
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m_items.push_back( item );
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addAnchor( via->GetStart(), item );
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SetDirty();
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return item;
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}
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};
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class CN_ZONE : public CN_ITEM
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{
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public:
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CN_ZONE( ZONE_CONTAINER* aParent, bool aCanChangeNet, int aSubpolyIndex ) :
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CN_ITEM( aParent, aCanChangeNet ),
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m_subpolyIndex( aSubpolyIndex )
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{
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SHAPE_LINE_CHAIN outline = aParent->GetFilledPolysList().COutline( aSubpolyIndex );
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outline.SetClosed( true );
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outline.Simplify();
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m_cachedPoly.reset( new POLY_GRID_PARTITION( outline, 16 ) );
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}
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int SubpolyIndex() const
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{
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return m_subpolyIndex;
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}
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bool ContainsAnchor( const CN_ANCHOR_PTR anchor ) const
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{
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auto zone = static_cast<ZONE_CONTAINER*> ( Parent() );
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return m_cachedPoly->ContainsPoint( anchor->Pos(), zone->GetMinThickness() );
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}
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bool ContainsPoint( const VECTOR2I p ) const
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{
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auto zone = static_cast<ZONE_CONTAINER*> ( Parent() );
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return m_cachedPoly->ContainsPoint( p, zone->GetMinThickness() );
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}
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const BOX2I& BBox() const
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{
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return m_cachedPoly->BBox();
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}
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virtual int AnchorCount() const override;
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virtual const VECTOR2I GetAnchor( int n ) const override;
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private:
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std::vector<VECTOR2I> m_testOutlinePoints;
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std::unique_ptr<POLY_GRID_PARTITION> m_cachedPoly;
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int m_subpolyIndex;
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};
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class CN_ZONE_LIST : public CN_LIST
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{
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public:
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CN_ZONE_LIST() {}
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const std::vector<CN_ITEM*> Add( ZONE_CONTAINER* zone )
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{
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const auto& polys = zone->GetFilledPolysList();
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std::vector<CN_ITEM*> rv;
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for( int j = 0; j < polys.OutlineCount(); j++ )
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{
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CN_ZONE* zitem = new CN_ZONE( zone, false, j );
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const auto& outline = zone->GetFilledPolysList().COutline( j );
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for( int k = 0; k < outline.PointCount(); k++ )
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addAnchor( outline.CPoint( k ), zitem );
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m_items.push_back( zitem );
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rv.push_back( zitem );
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SetDirty();
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}
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return rv;
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}
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template <class T>
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void FindNearbyZones( BOX2I aBBox, T aFunc, bool aDirtyOnly = false );
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};
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template <class T>
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void CN_LIST::FindNearby( BOX2I aBBox, T aFunc, bool aDirtyOnly )
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{
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for( auto p : m_anchors )
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{
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if( p->Valid() && aBBox.Contains( p->Pos() ) )
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{
|
|
if( !aDirtyOnly || p->IsDirty() )
|
|
aFunc( p );
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
template <class T>
|
|
void CN_ZONE_LIST::FindNearbyZones( BOX2I aBBox, T aFunc, bool aDirtyOnly )
|
|
{
|
|
for( auto item : m_items )
|
|
{
|
|
auto zone = static_cast<CN_ZONE*>( item );
|
|
|
|
if( aBBox.Intersects( zone->BBox() ) )
|
|
{
|
|
if( !aDirtyOnly || zone->Dirty() )
|
|
{
|
|
aFunc( zone );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
template <class T>
|
|
void CN_LIST::FindNearby( VECTOR2I aPosition, int aDistMax, T aFunc, bool aDirtyOnly )
|
|
{
|
|
/* Search items in m_Candidates that position is <= aDistMax from aPosition
|
|
* (Rectilinear distance)
|
|
* m_Candidates is sorted by X then Y values, so a fast binary search is used
|
|
* to locate the "best" entry point in list
|
|
* The best entry is a pad having its m_Pos.x == (or near) aPosition.x
|
|
* All candidates are near this candidate in list
|
|
* So from this entry point, a linear search is made to find all candidates
|
|
*/
|
|
|
|
sort();
|
|
|
|
int idxmax = m_anchors.size() - 1;
|
|
|
|
int delta = idxmax + 1;
|
|
int idx = 0; // Starting index is the beginning of list
|
|
|
|
while( delta )
|
|
{
|
|
// Calculate half size of remaining interval to test.
|
|
// Ensure the computed value is not truncated (too small)
|
|
if( ( delta & 1 ) && ( delta > 1 ) )
|
|
delta++;
|
|
|
|
delta /= 2;
|
|
|
|
auto p = m_anchors[idx];
|
|
|
|
int dist = p->Pos().x - aPosition.x;
|
|
|
|
if( std::abs( dist ) <= aDistMax )
|
|
{
|
|
break; // A good entry point is found. The list can be scanned from this point.
|
|
}
|
|
else if( p->Pos().x < aPosition.x ) // We should search after this point
|
|
{
|
|
idx += delta;
|
|
|
|
if( idx > idxmax )
|
|
idx = idxmax;
|
|
}
|
|
else // We should search before this p
|
|
{
|
|
idx -= delta;
|
|
|
|
if( idx < 0 )
|
|
idx = 0;
|
|
}
|
|
}
|
|
|
|
/* Now explore the candidate list from the "best" entry point found
|
|
* (candidate "near" aPosition.x)
|
|
* We exp the list until abs(candidate->m_Point.x - aPosition.x) > aDistMashar* Currently a linear search is made because the number of candidates
|
|
* having the right X position is usually small
|
|
*/
|
|
// search next candidates in list
|
|
VECTOR2I diff;
|
|
|
|
for( int ii = idx; ii <= idxmax; ii++ )
|
|
{
|
|
auto& p = m_anchors[ii];
|
|
diff = p->Pos() - aPosition;;
|
|
|
|
if( std::abs( diff.x ) > aDistMax )
|
|
break; // Exit: the distance is to long, we cannot find other candidates
|
|
|
|
if( std::abs( diff.y ) > aDistMax )
|
|
continue; // the y distance is to long, but we can find other candidates
|
|
|
|
// We have here a good candidate: add it
|
|
if( p->Valid() )
|
|
if( !aDirtyOnly || p->IsDirty() )
|
|
aFunc( p );
|
|
}
|
|
|
|
// search previous candidates in list
|
|
for( int ii = idx - 1; ii >=0; ii-- )
|
|
{
|
|
auto& p = m_anchors[ii];
|
|
diff = p->Pos() - aPosition;
|
|
|
|
if( abs( diff.x ) > aDistMax )
|
|
break;
|
|
|
|
if( abs( diff.y ) > aDistMax )
|
|
continue;
|
|
|
|
// We have here a good candidate:add it
|
|
if( p->Valid() )
|
|
{
|
|
if( !aDirtyOnly || p->IsDirty() )
|
|
aFunc( p );
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
class CN_CONNECTIVITY_ALGO
|
|
{
|
|
public:
|
|
enum CLUSTER_SEARCH_MODE
|
|
{
|
|
CSM_PROPAGATE,
|
|
CSM_CONNECTIVITY_CHECK,
|
|
CSM_RATSNEST
|
|
};
|
|
|
|
using CLUSTERS = std::vector<CN_CLUSTER_PTR>;
|
|
|
|
private:
|
|
|
|
bool m_lastSearchWithZones = false;
|
|
|
|
class ITEM_MAP_ENTRY
|
|
{
|
|
public:
|
|
ITEM_MAP_ENTRY( CN_ITEM* aItem = nullptr )
|
|
{
|
|
if( aItem )
|
|
m_items.push_back( aItem );
|
|
}
|
|
|
|
void MarkItemsAsInvalid()
|
|
{
|
|
for( auto item : m_items )
|
|
{
|
|
item->SetValid( false );
|
|
}
|
|
}
|
|
|
|
void Link( CN_ITEM* aItem )
|
|
{
|
|
m_items.push_back( aItem );
|
|
}
|
|
|
|
const std::list<CN_ITEM*> GetItems() const
|
|
{
|
|
return m_items;
|
|
}
|
|
|
|
std::list<CN_ITEM*> m_items;
|
|
};
|
|
|
|
|
|
CN_PAD_LIST m_padList;
|
|
CN_TRACK_LIST m_trackList;
|
|
CN_VIA_LIST m_viaList;
|
|
CN_ZONE_LIST m_zoneList;
|
|
|
|
using ITEM_MAP_PAIR = std::pair <const BOARD_CONNECTED_ITEM*, ITEM_MAP_ENTRY>;
|
|
|
|
std::unordered_map<const BOARD_CONNECTED_ITEM*, ITEM_MAP_ENTRY> m_itemMap;
|
|
|
|
CLUSTERS m_connClusters;
|
|
CLUSTERS m_ratsnestClusters;
|
|
std::vector<bool> m_dirtyNets;
|
|
|
|
void searchConnections( bool aIncludeZones = false );
|
|
|
|
void update();
|
|
void propagateConnections();
|
|
|
|
template <class Container, class BItem>
|
|
void add( Container& c, BItem brditem )
|
|
{
|
|
auto item = c.Add( brditem );
|
|
|
|
m_itemMap[ brditem ] = ITEM_MAP_ENTRY( item );
|
|
}
|
|
|
|
bool addConnectedItem( BOARD_CONNECTED_ITEM* aItem );
|
|
bool isDirty() const;
|
|
|
|
void markItemNetAsDirty( const BOARD_ITEM* aItem );
|
|
|
|
public:
|
|
|
|
CN_CONNECTIVITY_ALGO();
|
|
~CN_CONNECTIVITY_ALGO();
|
|
|
|
bool ItemExists( const BOARD_CONNECTED_ITEM* aItem )
|
|
{
|
|
return m_itemMap.find( aItem ) != m_itemMap.end();
|
|
}
|
|
|
|
ITEM_MAP_ENTRY& ItemEntry( const BOARD_CONNECTED_ITEM* aItem )
|
|
{
|
|
return m_itemMap[ aItem ];
|
|
}
|
|
|
|
bool IsNetDirty( int aNet ) const
|
|
{
|
|
if( aNet < 0 )
|
|
return false;
|
|
|
|
return m_dirtyNets[ aNet ];
|
|
}
|
|
|
|
void ClearDirtyFlags()
|
|
{
|
|
for( auto i = m_dirtyNets.begin(); i != m_dirtyNets.end(); ++i )
|
|
*i = false;
|
|
}
|
|
|
|
void GetDirtyClusters( CLUSTERS& aClusters )
|
|
{
|
|
for( auto cl : m_ratsnestClusters )
|
|
{
|
|
int net = cl->OriginNet();
|
|
|
|
if( net >= 0 && m_dirtyNets[net] )
|
|
aClusters.push_back( cl );
|
|
}
|
|
}
|
|
|
|
int NetCount() const
|
|
{
|
|
return m_dirtyNets.size();
|
|
}
|
|
|
|
void Build( BOARD* aBoard );
|
|
void Build( const std::vector<BOARD_ITEM*>& aItems );
|
|
|
|
void Clear();
|
|
|
|
bool Remove( BOARD_ITEM* aItem );
|
|
bool Add( BOARD_ITEM* aItem );
|
|
|
|
const CLUSTERS SearchClusters( CLUSTER_SEARCH_MODE aMode, const KICAD_T aTypes[], int aSingleNet );
|
|
const CLUSTERS SearchClusters( CLUSTER_SEARCH_MODE aMode );
|
|
|
|
void PropagateNets();
|
|
void FindIsolatedCopperIslands( ZONE_CONTAINER* aZone, std::vector<int>& aIslands );
|
|
bool CheckConnectivity( std::vector<CN_DISJOINT_NET_ENTRY>& aReport );
|
|
|
|
const CLUSTERS& GetClusters();
|
|
int GetUnconnectedCount();
|
|
|
|
CN_PAD_LIST& PadList() { return m_padList; }
|
|
|
|
void ForEachAnchor( std::function<void(CN_ANCHOR_PTR)> aFunc );
|
|
void ForEachItem( std::function<void(CN_ITEM*)> aFunc );
|
|
|
|
void MarkNetAsDirty( int aNet );
|
|
|
|
};
|
|
|
|
bool operator<( const CN_ANCHOR_PTR a, const CN_ANCHOR_PTR b );
|
|
|
|
#endif
|