bool PCB_EDIT_FRAME::Other_Layer_Route( TRACK* aTrack, wxDC* DC )
{
unsigned itmp;
if( aTrack == NULL )
{
if( getActiveLayer() != ((PCB_SCREEN*)GetScreen())->m_Route_Layer_TOP )
setActiveLayer( ((PCB_SCREEN*)GetScreen())->m_Route_Layer_TOP );
else
setActiveLayer(((PCB_SCREEN*)GetScreen())->m_Route_Layer_BOTTOM );
UpdateStatusBar();
return true;
}
// Avoid more than one via on the current location:
if( GetBoard()->GetViaByPosition( g_CurrentTrackSegment->GetEnd(),
g_CurrentTrackSegment->GetLayer() ) )
return false;
for( TRACK* segm = g_FirstTrackSegment; segm; segm = segm->Next() )
{
if( segm->Type() == PCB_VIA_T && g_CurrentTrackSegment->GetEnd() == segm->GetStart() )
return false;
}
// Is the current segment Ok (no DRC error) ?
if( g_Drc_On )
{
if( BAD_DRC==m_drc->Drc( g_CurrentTrackSegment, GetBoard()->m_Track ) )
// DRC error, the change layer is not made
return false;
// Handle 2 segments.
if( g_TwoSegmentTrackBuild && g_CurrentTrackSegment->Back() )
{
if( BAD_DRC == m_drc->Drc( g_CurrentTrackSegment->Back(), GetBoard()->m_Track ) )
return false;
}
}
/* Save current state before placing a via.
* If the via cannot be placed this current state will be reused
*/
itmp = g_CurrentTrackList.GetCount();
Begin_Route( g_CurrentTrackSegment, DC );
m_canvas->CallMouseCapture( DC, wxDefaultPosition, false );
// create the via
SEGVIA* via = new SEGVIA( GetBoard() );
via->SetFlags( IS_NEW );
via->SetShape( GetDesignSettings().m_CurrentViaType );
via->SetWidth( GetBoard()->GetCurrentViaSize());
via->SetNet( GetBoard()->GetHighLightNetCode() );
via->SetEnd( g_CurrentTrackSegment->GetEnd() );
via->SetStart( g_CurrentTrackSegment->GetEnd() );
// Usual via is from copper to component.
// layer pair is LAYER_N_BACK and LAYER_N_FRONT.
via->SetLayerPair( LAYER_N_BACK, LAYER_N_FRONT );
via->SetDrill( GetBoard()->GetCurrentViaDrill() );
LAYER_NUM first_layer = getActiveLayer();
LAYER_NUM last_layer;
// prepare switch to new active layer:
if( first_layer != GetScreen()->m_Route_Layer_TOP )
last_layer = GetScreen()->m_Route_Layer_TOP;
else
last_layer = GetScreen()->m_Route_Layer_BOTTOM;
// Adjust the actual via layer pair
switch ( via->GetShape() )
{
case VIA_BLIND_BURIED:
via->SetLayerPair( first_layer, last_layer );
break;
case VIA_MICROVIA: // from external to the near neighbor inner layer
{
LAYER_NUM last_inner_layer = FIRST_LAYER + (GetBoard()->GetCopperLayerCount() - 2);
if ( first_layer == LAYER_N_BACK )
last_layer = LAYER_N_2;
else if ( first_layer == LAYER_N_FRONT )
last_layer = last_inner_layer;
else if ( first_layer == LAYER_N_2 )
last_layer = LAYER_N_BACK;
else if ( first_layer == last_inner_layer )
last_layer = LAYER_N_FRONT;
// else error: will be removed later
via->SetLayerPair( first_layer, last_layer );
{
NETINFO_ITEM* net = GetBoard()->FindNet( via->GetNet() );
via->SetWidth( net->GetMicroViaSize() );
}
}
break;
default:
break;
}
if( g_Drc_On && BAD_DRC == m_drc->Drc( via, GetBoard()->m_Track ) )
{
// DRC fault: the Via cannot be placed here ...
delete via;
m_canvas->CallMouseCapture( DC, wxDefaultPosition, false );
// delete the track(s) added in Begin_Route()
while( g_CurrentTrackList.GetCount() > itmp )
{
Delete_Segment( DC, g_CurrentTrackSegment );
}
SetCurItem( g_CurrentTrackSegment, false );
// Refresh DRC diag, erased by previous calls
if( m_drc->GetCurrentMarker() )
SetMsgPanel( m_drc->GetCurrentMarker() );
return false;
}
setActiveLayer( last_layer );
TRACK* lastNonVia = g_CurrentTrackSegment;
/* A new via was created. It was Ok.
*/
g_CurrentTrackList.PushBack( via );
/* The via is now in linked list and we need a new track segment
* after the via, starting at via location.
* it will become the new current segment (from via to the mouse cursor)
*/
TRACK* track = (TRACK*)lastNonVia->Clone();
/* the above creates a new segment from the last entered segment, with the
* current width, flags, netcode, etc... values.
* layer, start and end point are not correct,
* and will be modified next
*/
// set the layer to the new value
track->SetLayer( getActiveLayer() );
/* the start point is the via position and the end point is the cursor
* which also is on the via (will change when moving mouse)
*/
track->SetEnd( via->GetStart() );
track->SetStart( via->GetStart() );
g_CurrentTrackList.PushBack( track );
if( g_TwoSegmentTrackBuild )
{
// Create a second segment (we must have 2 track segments to adjust)
g_CurrentTrackList.PushBack( (TRACK*)g_CurrentTrackSegment->Clone() );
}
m_canvas->CallMouseCapture( DC, wxDefaultPosition, false );
SetMsgPanel( via );
UpdateStatusBar();
return true;
}
/*
* Delete dangling tracks
* Vias:
* If a via is only connected to a dangling track, it also will be removed
*/
bool TRACKS_CLEANER::deleteUnconnectedTracks()
{
if( m_Brd->m_Track == NULL )
return false;
bool modified = false;
bool item_erased = true;
while( item_erased ) // Iterate when at least one track is deleted
{
item_erased = false;
TRACK* next_track;
for( TRACK * track = m_Brd->m_Track; track ; track = next_track )
{
next_track = track->Next();
int flag_erase = 0; //Not connected indicator
int type_end = 0;
if( track->GetState( START_ON_PAD ) )
type_end |= START_ON_PAD;
if( track->GetState( END_ON_PAD ) )
type_end |= END_ON_PAD;
// if the track start point is not connected to a pad,
// test if this track start point is connected to another track
// For via test, an enhancement could be to test if connected
// to 2 items on different layers.
// Currently a via must be connected to 2 items, that can be on the same layer
LAYER_NUM top_layer, bottom_layer;
ZONE_CONTAINER* zone;
if( (type_end & START_ON_PAD ) == 0 )
{
TRACK* other = track->GetTrace( m_Brd->m_Track, NULL, FLG_START );
if( other == NULL ) // Test a connection to zones
{
if( track->Type() != PCB_VIA_T )
{
zone = m_Brd->HitTestForAnyFilledArea( track->GetStart(),
track->GetLayer(),
track->GetLayer(),
track->GetNet() );
}
else
{
((SEGVIA*)track)->ReturnLayerPair( &top_layer, &bottom_layer );
zone = m_Brd->HitTestForAnyFilledArea( track->GetStart(),
top_layer, bottom_layer,
track->GetNet() );
}
}
if( (other == NULL) && (zone == NULL) )
{
flag_erase |= 1;
}
else // segment, via or zone connected to this end
{
track->start = other;
// If a via is connected to this end,
// test if this via has a second item connected.
// If no, remove it with the current segment
if( other && other->Type() == PCB_VIA_T )
{
// search for another segment following the via
track->SetState( BUSY, true );
SEGVIA* via = (SEGVIA*) other;
other = via->GetTrace( m_Brd->m_Track, NULL, FLG_START );
if( other == NULL )
{
via->ReturnLayerPair( &top_layer, &bottom_layer );
zone = m_Brd->HitTestForAnyFilledArea( via->GetStart(),
bottom_layer,
top_layer,
via->GetNet() );
}
if( (other == NULL) && (zone == NULL) )
flag_erase |= 2;
track->SetState( BUSY, false );
}
}
}
// if track end point is not connected to a pad,
// test if this track end point is connected to an other track
if( (type_end & END_ON_PAD ) == 0 )
{
TRACK* other = track->GetTrace( m_Brd->m_Track, NULL, FLG_END );
if( other == NULL ) // Test a connection to zones
{
if( track->Type() != PCB_VIA_T )
{
zone = m_Brd->HitTestForAnyFilledArea( track->GetEnd(),
track->GetLayer(),
track->GetLayer(),
track->GetNet() );
}
else
{
((SEGVIA*)track)->ReturnLayerPair( &top_layer, &bottom_layer );
zone = m_Brd->HitTestForAnyFilledArea( track->GetEnd(),
top_layer, bottom_layer,
track->GetNet() );
}
}
if ( (other == NULL) && (zone == NULL) )
{
flag_erase |= 0x10;
}
else // segment, via or zone connected to this end
{
track->end = other;
// If a via is connected to this end, test if this via has a second item connected
// if no, remove it with the current segment
if( other && other->Type() == PCB_VIA_T )
{
// search for another segment following the via
track->SetState( BUSY, true );
SEGVIA* via = (SEGVIA*) other;
other = via->GetTrace( m_Brd->m_Track, NULL, FLG_END );
if( other == NULL )
{
via->ReturnLayerPair( &top_layer, &bottom_layer );
zone = m_Brd->HitTestForAnyFilledArea( via->GetEnd(),
bottom_layer, top_layer,
via->GetNet() );
}
if( (other == NULL) && (zone == NULL) )
flag_erase |= 0x20;
track->SetState( BUSY, false );
}
}
}
if( flag_erase )
{
// remove segment from board
track->DeleteStructure();
// iterate, because a track connected to the deleted track
// is now perhaps now not connected and should be deleted
item_erased = true;
modified = true;
}
}
}
return modified;
}