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68 lines
2.2 KiB
C++
68 lines
2.2 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 The 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 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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#include <vector>
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#include <math/vector2d.h>
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#include <sch_rtree.h>
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class SCH_JUNCTION;
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namespace JUNCTION_HELPERS
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{
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/**
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* A selection of information about a point in the schematic that might
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* be eligible for turning into a junction.
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*/
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struct POINT_INFO
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{
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/// True if the point has 3+ wires and/or 3+ buses meeting there
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bool isJunction;
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/// True if there is already junction dot at the point
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bool hasExplicitJunctionDot;
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/// True if there is a bus entry at the point (either end)
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bool hasBusEntry;
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/// True if there is a bus entry at the point and it connects to more than one wire
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bool hasBusEntryToMultipleWires;
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};
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/**
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* Check a tree of items for a confluence at a given point and work out what kind of junction
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* it is, if any.
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*/
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POINT_INFO AnalyzePoint( const EE_RTREE& aItem, const VECTOR2I& aPosition, bool aBreakCrossings );
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/**
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* Determine the points where explicit junctions would be required if the given
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* temporary items were committed to the schematic.
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*
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* @param aScreen The schematic screen containing the existing items.
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* @param aItems Temporary items not yet added to the screen.
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* @return Locations of needed junctions represented as new SCH_JUNCTION items.
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*/
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std::vector<SCH_JUNCTION*> PreviewJunctions( const class SCH_SCREEN* aScreen,
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const std::vector<class SCH_ITEM*>& aItems );
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} // namespace JUNCTION_HELPERS
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