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Clarify NeighboringSegmentFilter 

This doesn't affect behavior but makes the code more readable
This commit is contained in:
Seth Hillbrand 2023-07-25 11:05:56 -07:00
parent 530af96da2
commit 812c56bdc7
1 changed files with 18 additions and 1 deletions
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19
pcbnew/router/router_tool.cpp
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@ -2036,7 +2036,20 @@ void ROUTER_TOOL::NeighboringSegmentFilter( const VECTOR2I& aPt, GENERAL_COLLECT
int traces = aCollector.CountType( PCB_TRACE_T );
int arcs = aCollector.CountType( PCB_ARC_T );
if( arcs > 0 || vias > 1 || traces > 2 || vias + traces < 1 )
// We eliminate arcs because they are not supported in the inline drag code.
if( arcs > 0 )
return;
// We need to have at least 1 via or track
if( vias + traces == 0 )
return;
// We cannot drag more than one via at a time
if( vias > 1 )
return;
// We cannot drag more than two track segments at a time
if( traces > 2 )
return;
// Fetch first PCB_TRACK (via or trace) as our reference
@ -2045,6 +2058,10 @@ void ROUTER_TOOL::NeighboringSegmentFilter( const VECTOR2I& aPt, GENERAL_COLLECT
for( int i = 0; !reference && i < aCollector.GetCount(); i++ )
reference = dynamic_cast<PCB_TRACK*>( aCollector[i] );
// This should never happen, but just in case...
if( !reference )
return;
int refNet = reference->GetNetCode();
VECTOR2I refPoint( aPt.x, aPt.y );