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Eeschema: Remove backtracking (overlapping) wires when creating new connections.

This commit is contained in:
unknown 2015-06-23 17:01:34 +02:00 committed by jean-pierre charras
parent 07d34e4428
commit 5dd0099119
1 changed files with 51 additions and 0 deletions
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51
eeschema/bus-wire-junction.cpp
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@ -43,6 +43,7 @@
#include <sch_text.h>
#include <sch_component.h>
#include <sch_sheet.h>
#include <trigo.h>
static void AbortCreateNewLine( EDA_DRAW_PANEL* aPanel, wxDC* aDC );
@ -52,6 +53,53 @@ static DLIST< SCH_ITEM > s_wires; // when creating a new set of wires,
// stores here the new wires.
/**
* In a contiguous list of wires, remove wires that backtrack over the previous
* wire. Example:
*
* Wire is added:
* ---------------------------------------->
*
* A second wire backtracks over it:
* -------------------<====================>
*
* RemoveBacktracks is called:
* ------------------->
*/
static void RemoveBacktracks( DLIST<SCH_ITEM>& aWires )
{
SCH_LINE* last_line = NULL;
EDA_ITEM* first = aWires.GetFirst();
for( EDA_ITEM* p = first; p; )
{
SCH_LINE *line = dynamic_cast<SCH_LINE*>( p );
if( !line )
{
wxFAIL_MSG( "RemoveBacktracks() requires SCH_LINE items" );
break;
}
p = line->Next();
if( last_line )
{
wxASSERT_MSG( last_line->GetEndPoint() == line->GetStartPoint(),
"RemoveBacktracks() requires contiguous lines" );
if( IsPointOnSegment( last_line->GetStartPoint(), line->GetStartPoint(),
line->GetEndPoint() ) )
{
last_line->SetEndPoint( line->GetEndPoint() );
delete s_wires.Remove( line );
}
else
last_line = line;
}
else
last_line = line;
}
}
/**
* Mouse capture callback for drawing line segments.
*/
@ -261,6 +309,9 @@ void SCH_EDIT_FRAME::EndSegment( wxDC* DC )
SaveCopyInUndoList( oldItems, UR_WIRE_IMAGE );
// Remove segments backtracking over others
RemoveBacktracks( s_wires );
// Add the new wires
screen->Append( s_wires );