kicad/pcbnew/connectivity/connectivity_algo.h

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/*
* This program source code file is part of KICAD, a free EDA CAD application.
*
* Copyright (C) 2013-2017 CERN
* Copyright (C) 2019-2023 KiCad Developers, see AUTHORS.txt for contributors.
*
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* @author Maciej Suminski <maciej.suminski@cern.ch>
* @author Tomasz Wlostowski <tomasz.wlostowski@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
*/
// #define CONNECTIVITY_DEBUG
#ifndef __CONNECTIVITY_ALGO_H
#define __CONNECTIVITY_ALGO_H
#include <board.h>
#include <pad.h>
#include <footprint.h>
#include <zone.h>
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#include <geometry/shape_poly_set.h>
#include <memory>
#include <algorithm>
#include <functional>
#include <vector>
#include <deque>
#include <connectivity/connectivity_rtree.h>
#include <connectivity/connectivity_data.h>
#include <connectivity/connectivity_items.h>
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class CN_RATSNEST_NODES;
class BOARD;
class BOARD_CONNECTED_ITEM;
class BOARD_ITEM;
class ZONE;
class PROGRESS_REPORTER;
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/**
* CN_EDGE represents a point-to-point connection, whether realized or unrealized (ie: tracks etc.
* or a ratsnest line).
*/
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class CN_EDGE
{
public:
CN_EDGE() :
m_weight( 0 ),
m_visible( true )
{}
CN_EDGE( const std::shared_ptr<CN_ANCHOR>& aSource, const std::shared_ptr<CN_ANCHOR>& aTarget,
unsigned aWeight = 0 ) :
m_source( aSource ),
m_target( aTarget ),
m_weight( aWeight ),
m_visible( true )
{}
/**
* This sort operator provides a sort-by-weight for the ratsnest operation.
*
* @param aOther the other edge to compare.
* @return true if our weight is smaller than the other weight.
*/
bool operator<( CN_EDGE aOther ) const
{
return m_weight < aOther.m_weight;
}
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std::shared_ptr<const CN_ANCHOR> GetSourceNode() const { return m_source; }
std::shared_ptr<const CN_ANCHOR> GetTargetNode() const { return m_target; }
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void SetSourceNode( const std::shared_ptr<const CN_ANCHOR>& aNode ) { m_source = aNode; }
void SetTargetNode( const std::shared_ptr<const CN_ANCHOR>& aNode ) { m_target = aNode; }
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void SetWeight( unsigned weight ) { m_weight = weight; }
unsigned GetWeight() const { return m_weight; }
void SetVisible( bool aVisible ) { m_visible = aVisible; }
bool IsVisible() const { return m_visible; }
const VECTOR2I GetSourcePos() const { return m_source->Pos(); }
const VECTOR2I GetTargetPos() const { return m_target->Pos(); }
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unsigned GetLength() const
{
return ( m_target->Pos() - m_source->Pos() ).EuclideanNorm();
}
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private:
std::shared_ptr<const CN_ANCHOR> m_source;
std::shared_ptr<const CN_ANCHOR> m_target;
unsigned m_weight;
bool m_visible;
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};
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class CN_CONNECTIVITY_ALGO
{
public:
enum CLUSTER_SEARCH_MODE
{
CSM_PROPAGATE,
CSM_CONNECTIVITY_CHECK,
CSM_RATSNEST
};
using CLUSTERS = std::vector<std::shared_ptr<CN_CLUSTER>>;
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/*
* Holds a list of CN_ITEMs for a given BOARD_CONNECTED_ITEM. For most items (pads, tracks,
* etc.) the list will have a single CN_ITEM, but for ZONEs it will have one item for each
* distinct outline on each layer.
*/
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class ITEM_MAP_ENTRY
{
public:
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ITEM_MAP_ENTRY( CN_ITEM* aItem = nullptr )
{
if( aItem )
m_items.push_back( aItem );
}
void MarkItemsAsInvalid()
{
for( CN_ITEM* item : m_items )
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item->SetValid( false );
}
void Link( CN_ITEM* aItem )
{
m_items.push_back( aItem );
}
const std::list<CN_ITEM*>& GetItems() const
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{
return m_items;
}
std::list<CN_ITEM*> m_items;
};
CN_CONNECTIVITY_ALGO() {}
~CN_CONNECTIVITY_ALGO() { Clear(); }
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bool ItemExists( const BOARD_CONNECTED_ITEM* aItem ) const
{
return m_itemMap.find( aItem ) != m_itemMap.end();
}
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ITEM_MAP_ENTRY& ItemEntry( const BOARD_CONNECTED_ITEM* aItem )
{
return m_itemMap[ aItem ];
}
bool IsNetDirty( int aNet ) const
{
if( aNet < 0 )
return false;
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return m_dirtyNets[ aNet ];
}
void ClearDirtyFlags()
{
for( size_t ii = 0; ii < m_dirtyNets.size(); ii++ )
m_dirtyNets[ii] = false;
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}
void GetDirtyClusters( CLUSTERS& aClusters ) const
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{
for( const std::shared_ptr<CN_CLUSTER>& cl : m_ratsnestClusters )
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{
int net = cl->OriginNet();
if( net >= 0 && m_dirtyNets[net] )
aClusters.push_back( cl );
}
}
int NetCount() const
{
return m_dirtyNets.size();
}
void Build( BOARD* aZoneLayer, PROGRESS_REPORTER* aReporter = nullptr );
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void LocalBuild( const std::vector<BOARD_ITEM*>& aItems );
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void Clear();
bool Remove( BOARD_ITEM* aItem );
bool Add( BOARD_ITEM* aItem );
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const CLUSTERS SearchClusters( CLUSTER_SEARCH_MODE aMode,
const std::initializer_list<KICAD_T>& aTypes,
int aSingleNet, CN_ITEM* rootItem = nullptr );
const CLUSTERS SearchClusters( CLUSTER_SEARCH_MODE aMode );
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/**
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* Propagate nets from pads to other items in clusters.
* @param aCommit is used to store undo information for items modified by the call.
*/
void PropagateNets( BOARD_COMMIT* aCommit = nullptr );
/**
* Fill in the isolated islands map with copper islands that are not connected to a net.
*/
void FillIsolatedIslandsMap( std::map<ZONE*, std::map<PCB_LAYER_ID, ISOLATED_ISLANDS>>& aMap,
bool aConnectivityAlreadyRebuilt );
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const CLUSTERS& GetClusters();
const CN_LIST& ItemList() const
{
return m_itemList;
}
template <typename Func>
void ForEachAnchor( Func&& aFunc ) const
{
for( CN_ITEM* item : m_itemList )
{
for( std::shared_ptr<CN_ANCHOR>& anchor : item->Anchors() )
aFunc( *anchor );
}
}
template <typename Func>
void ForEachItem( Func&& aFunc ) const
{
for( CN_ITEM* item : m_itemList )
aFunc( *item );
}
void MarkNetAsDirty( int aNet );
void SetProgressReporter( PROGRESS_REPORTER* aReporter );
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private:
void searchConnections();
void propagateConnections( BOARD_COMMIT* aCommit = nullptr );
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template <class Container, class BItem>
void add( Container& c, BItem brditem )
{
CN_ITEM* item = c.Add( brditem );
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m_itemMap[ brditem ] = ITEM_MAP_ENTRY( item );
}
void markItemNetAsDirty( const BOARD_ITEM* aItem );
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private:
CN_LIST m_itemList;
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std::unordered_map<const BOARD_ITEM*, ITEM_MAP_ENTRY> m_itemMap;
std::vector<std::shared_ptr<CN_CLUSTER>> m_connClusters;
std::vector<std::shared_ptr<CN_CLUSTER>> m_ratsnestClusters;
std::vector<bool> m_dirtyNets;
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PROGRESS_REPORTER* m_progressReporter = nullptr;
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};
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class CN_VISITOR
{
public:
CN_VISITOR( CN_ITEM* aItem ) :
m_item( aItem )
{}
bool operator()( CN_ITEM* aCandidate );
protected:
void checkZoneItemConnection( CN_ZONE_LAYER* aZoneLayer, CN_ITEM* aItem );
void checkZoneZoneConnection( CN_ZONE_LAYER* aZoneLayerA, CN_ZONE_LAYER* aZoneLayerB );
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protected:
CN_ITEM* m_item; ///< The item we are looking for connections to.
};
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#endif