kicad/pcbnew/ratsnest/ratsnest_data.h

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/*
* This program source code file is part of KICAD, a free EDA CAD application.
*
* Copyright (C) 2013-2015 CERN
* Copyright (C) 2019-2022 KiCad Developers, see AUTHORS.txt for contributors.
*
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* @author Maciej Suminski <maciej.suminski@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
*/
/**
* @file ratsnest_data.h
* @brief Class that computes missing connections on a PCB.
*/
#ifndef RATSNEST_DATA_H
#define RATSNEST_DATA_H
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#include <core/typeinfo.h>
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#include <math/box2.h>
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#include <set>
#include <vector>
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#include <connectivity/connectivity_algo.h>
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class BOARD_ITEM;
class BOARD_CONNECTED_ITEM;
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class CN_CLUSTER;
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struct CN_PTR_CMP
{
bool operator()( const std::shared_ptr<CN_ANCHOR>& aItem,
const std::shared_ptr<CN_ANCHOR>& bItem ) const
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{
if( aItem->Pos().x == bItem->Pos().x )
return aItem->Pos().y < bItem->Pos().y;
else
return aItem->Pos().x < bItem->Pos().x;
}
};
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/**
* Describe ratsnest for a single net.
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*/
class RN_NET
{
public:
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RN_NET();
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/**
* Mark ratsnest for given net as 'dirty', i.e. requiring recomputation.
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*/
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void MarkDirty() { m_dirty = true; }
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/**
* Return state of the 'dirty' flag, indicating that ratsnest for a given net is invalid
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* and requires an update.
*
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* @return True if ratsnest requires recomputation, false otherwise.
*/
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bool IsDirty() const { return m_dirty; }
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/**
* Recompute ratsnest for a net.
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*/
void UpdateNet();
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void Clear();
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void AddCluster( std::shared_ptr<CN_CLUSTER> aCluster );
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unsigned int GetNodeCount() const { return m_nodes.size(); }
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const std::vector<CN_EDGE>& GetEdges() const { return m_rnEdges; }
std::vector<CN_EDGE>& GetEdges() { return m_rnEdges; }
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bool NearestBicoloredPair( RN_NET* aOtherNet, VECTOR2I& aPos1, VECTOR2I& aPos2 ) const;
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protected:
///< Recompute ratsnest from scratch.
void compute();
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///< Compute the minimum spanning tree using Kruskal's algorithm
void kruskalMST( const std::vector<CN_EDGE> &aEdges );
///< Find optimal ends of RNEdges. The MST will have found the closest anchors, but when
///< zones are involved we might have points closer than the anchors.
void optimizeRNEdges();
protected:
///< Vector of nodes
std::multiset<std::shared_ptr<CN_ANCHOR>, CN_PTR_CMP> m_nodes;
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///< Vector of edges that make pre-defined connections
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std::vector<CN_EDGE> m_boardEdges;
///< Vector of edges that makes ratsnest for a given net.
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std::vector<CN_EDGE> m_rnEdges;
///< Flag indicating necessity of recalculation of ratsnest for a net.
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bool m_dirty;
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class TRIANGULATOR_STATE;
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std::shared_ptr<TRIANGULATOR_STATE> m_triangulator;
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};
#endif /* RATSNEST_DATA_H */