kicad/pcbnew/tr_modif.cpp

277 lines
8.7 KiB
C++

/******************/
/* Trace editing. */
/******************/
#include "fctsys.h"
#include "common.h"
#include "pcbnew.h"
#include "wxPcbStruct.h"
#include "protos.h"
/**
* Function EraseRedundantTrack
* Called after creating a track
* Remove (if exists) the old track that have the same starting and the same
* ending point as the new created track (this is the redunding track)
* @param aDC = the current device context (can be NULL)
* @param aNewTrack = the new created track (a pointer to a segment of the
* track list)
* @param aNewTrackSegmentsCount = number of segments in this new track
* @param aItemsListPicker = the list picker to use for an undo command (can
* be NULL)
*/
int WinEDA_PcbFrame::EraseRedundantTrack(
wxDC* aDC,
TRACK* aNewTrack,
int aNewTrackSegmentsCount,
PICKED_ITEMS_LIST* aItemsListPicker )
{
TRACK* StartTrack, * EndTrack;
TRACK* pt_segm;
TRACK* pt_del;
int ii, jj, nb_segm, nbconnect;
wxPoint start;
wxPoint end;
int startmasklayer, endmasklayer;
TRACK* BufDeb, * BufEnd;
int netcode = aNewTrack->GetNet();
/* Reconstruct the complete track (the new track has to start on a
* segment of track).
*/
ListSetState( aNewTrack, aNewTrackSegmentsCount, BUSY, OFF );
/* If the new track begins with a via, complete the track segment using
* the following segment as a reference because a via is often a hub of
* segments, and does not characterize track.
*/
if( aNewTrack->Type() == TYPE_VIA && ( aNewTrackSegmentsCount > 1 ) )
aNewTrack = aNewTrack->Next();
aNewTrack = Marque_Une_Piste( GetBoard(), aNewTrack,
&aNewTrackSegmentsCount, NULL, true );
wxASSERT( aNewTrack );
#if 0 && defined(DEBUG)
TRACK* EndNewTrack; /* The last segment of the list chained to
* the track */
EndNewTrack = aNewTrack;
for( ii = 1; ii < aNewTrackSegmentsCount; ii++ )
{
wxASSERT( EndNewTrack->GetState( -1 ) != 0 );
D( printf( "track %p is newly part of net %d\n", EndNewTrack,
netcode ); )
EndNewTrack = EndNewTrack->Next();
}
wxASSERT( EndNewTrack->GetState( -1 ) != 0 );
D( printf( "track %p is newly part of net %d\n", EndNewTrack, netcode ); )
for( TRACK* track = m_Pcb->m_Track; track; track = track->Next() )
track->Show( 0, std::cout );
#endif
/* Calculate search in terms of segments of track, 1st edge BufDeb useful
* segment. */
BufDeb = m_Pcb->m_Track->GetStartNetCode( netcode );
/* Point BufEnd the last segment. */
BufEnd = BufDeb->GetEndNetCode( netcode );
/* Flags for cleaning the net. */
for( pt_del = BufDeb; pt_del; pt_del = pt_del->Next() )
{
//D( printf( "track %p turning off BUSY | EDIT | CHAIN\n", pt_del ); )
D( std::cout<<"track "<<pt_del<<" turning off BUSY | EDIT | CHAIN"<<std::endl; )
pt_del->SetState( BUSY | EDIT | CHAIN, OFF );
if( pt_del == BufEnd ) // Last segment reached
break;
}
if( ReturnEndsTrack( aNewTrack, aNewTrackSegmentsCount,
&StartTrack, &EndTrack ) == 0 )
return 0;
if( ( StartTrack == NULL ) || ( EndTrack == NULL ) )
return 0;
start = StartTrack->m_Start;
end = EndTrack->m_End;
/* The start and end points cannot be the same. */
if( start == end )
return 0;
/* Determine layers interconnected these points. */
startmasklayer = StartTrack->ReturnMaskLayer();
endmasklayer = EndTrack->ReturnMaskLayer();
/* There may be a via or a pad on the end points. */
pt_segm = Fast_Locate_Via( m_Pcb->m_Track, NULL, start, startmasklayer );
if( pt_segm )
startmasklayer |= pt_segm->ReturnMaskLayer();
if( StartTrack->start && ( StartTrack->start->Type() == TYPE_PAD ) )
{
/* Start on pad. */
D_PAD* pt_pad = (D_PAD*)(StartTrack->start);
startmasklayer |= pt_pad->m_Masque_Layer;
}
pt_segm = Fast_Locate_Via( m_Pcb->m_Track, NULL, end, endmasklayer );
if( pt_segm )
endmasklayer |= pt_segm->ReturnMaskLayer();
if( EndTrack->end && ( EndTrack->end->Type() == TYPE_PAD ) )
{
D_PAD* pt_pad = (D_PAD*)(EndTrack->end);
endmasklayer |= pt_pad->m_Masque_Layer;
}
/* Mark as deleted a new track (which is not involved in the search for
* other connections)
*/
ListSetState( aNewTrack, aNewTrackSegmentsCount, DELETED, ON );
/* A segment must be connected to the starting point, otherwise
* it is unnecessary to analyze the other point
*/
pt_segm = Fast_Locate_Piste( BufDeb, BufEnd, start, startmasklayer );
if( pt_segm == NULL ) /* Not connected to the track starting point. */
{
/* Clear the delete flag. */
ListSetState( aNewTrack, aNewTrackSegmentsCount, DELETED, OFF );
return 0;
}
/* Marking a list of candidate segmented connect to endpoint
* Note: the vias are not taken into account because they do
* not define a track, since they are on an intersection.
*/
for( pt_del = BufDeb, nbconnect = 0; ; )
{
pt_segm = Fast_Locate_Piste( pt_del, BufEnd, end, endmasklayer );
if( pt_segm == NULL )
break;
if( pt_segm->Type() != TYPE_VIA )
{
if( pt_segm->GetState( CHAIN ) == 0 )
{
pt_segm->SetState( CHAIN, ON );
nbconnect++;
}
}
if( pt_del == BufEnd )
break;
pt_del = pt_segm->Next();
}
if( nbconnect == 0 )
{
/* Clear used flags */
for( pt_del = BufDeb; pt_del; pt_del = pt_del->Next() )
{
pt_del->SetState( BUSY | DELETED | EDIT | CHAIN, OFF );
if( pt_del == BufEnd ) // Last segment reached
break;
}
return 0;
}
/* Mark trace as edited (which does not involve searching for other
* tracks)
*/
ListSetState( aNewTrack, aNewTrackSegmentsCount, DELETED, OFF );
ListSetState( aNewTrack, aNewTrackSegmentsCount, EDIT, ON );
/* Test all marked segments. */
while( nbconnect )
{
for( pt_del = BufDeb; pt_del; pt_del = pt_del->Next() )
{
if( pt_del->GetState( CHAIN ) )
break;
if( pt_del == BufEnd ) // Last segment reached
break;
}
nbconnect--;
pt_del->SetState( CHAIN, OFF );
pt_del = Marque_Une_Piste( GetBoard(), pt_del, &nb_segm, NULL, true );
/* Test if the marked track is redundant, ie if one of marked segments
* is connected to the starting point of the new track.
*/
ii = 0;
pt_segm = pt_del;
for( ; pt_segm && (ii < nb_segm); pt_segm = pt_segm->Next(), ii++ )
{
if( pt_segm->GetState( BUSY ) == 0 )
break;
if( pt_segm->m_Start == start || pt_segm->m_End == start )
{
/* Marked track can be erased. */
TRACK* NextS;
Trace_Une_Piste( DrawPanel, aDC, pt_del, nb_segm,
GR_XOR | GR_SURBRILL );
for( jj = 0; jj < nb_segm; jj++, pt_del = NextS )
{
NextS = pt_del->Next();
if( aItemsListPicker )
{
pt_del->UnLink();
pt_del->SetStatus( 0 );
pt_del->m_Flags = 0;
ITEM_PICKER picker( pt_del, UR_DELETED );
aItemsListPicker->PushItem( picker );
}
else
pt_del->DeleteStructure();
}
/* Clean up flags. */
for( pt_del = m_Pcb->m_Track; pt_del != NULL;
pt_del = pt_del->Next() )
{
if( pt_del->GetState( EDIT ) )
{
pt_del->SetState( EDIT, OFF );
if( aDC )
pt_del->Draw( DrawPanel, aDC, GR_OR );
}
pt_del->SetState( EDIT | CHAIN, OFF );
}
return 1;
}
}
/* Clear BUSY flag here because the track did not get marked.
*/
ListSetState( pt_del, nb_segm, BUSY, OFF );
}
/* Clear used flags */
for( pt_del = m_Pcb->m_Track; pt_del; pt_del = pt_del->Next() )
{
pt_del->SetState( BUSY | DELETED | EDIT | CHAIN, OFF );
if( pt_del == BufEnd ) // Last segment reached
break;
}
return 0;
}