1 files changed, 268 insertions, 0 deletions
diff --git a/pcbnew/router/pns_meander_placer.cpp b/pcbnew/router/pns_meander_placer.cpp
new file mode 100644
index 0000000..14b9f9b
--- /dev/null
+++ b/pcbnew/router/pns_meander_placer.cpp
@@ -0,0 +1,268 @@
+/*
+ * KiRouter - a push-and-(sometimes-)shove PCB router
+ *
+ * Copyright (C) 2013-2015 CERN
+ * Author: Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <boost/foreach.hpp>
+
+#include <base_units.h> // God forgive me doing this...
+#include <colors.h>
+
+#include "trace.h"
+
+#include "pns_node.h"
+#include "pns_itemset.h"
+#include "pns_topology.h"
+#include "pns_meander_placer.h"
+#include "pns_router.h"
+
+
+PNS_MEANDER_PLACER::PNS_MEANDER_PLACER( PNS_ROUTER* aRouter ) :
+    PNS_MEANDER_PLACER_BASE( aRouter )
+{
+    m_world = NULL;
+    m_currentNode = NULL;
+
+    // Init temporary variables (do not leave uninitialized members)
+    m_initialSegment = NULL;
+    m_lastLength = 0;
+    m_lastStatus = TOO_SHORT;
+}
+
+
+PNS_MEANDER_PLACER::~PNS_MEANDER_PLACER()
+{
+}
+
+
+PNS_NODE* PNS_MEANDER_PLACER::CurrentNode( bool aLoopsRemoved ) const
+{
+    if( !m_currentNode )
+        return m_world;
+
+    return m_currentNode;
+}
+
+
+bool PNS_MEANDER_PLACER::Start( const VECTOR2I& aP, PNS_ITEM* aStartItem )
+{
+    VECTOR2I p;
+
+    if( !aStartItem || !aStartItem->OfKind( PNS_ITEM::SEGMENT ) )
+    {
+        Router()->SetFailureReason( _( "Please select a track whose length you want to tune." ) );
+        return false;
+    }
+
+    m_initialSegment = static_cast<PNS_SEGMENT*>( aStartItem );
+
+    p = m_initialSegment->Seg().NearestPoint( aP );
+
+    m_currentNode = NULL;
+    m_currentStart = p;
+
+    m_world = Router()->GetWorld()->Branch();
+    m_originLine = m_world->AssembleLine( m_initialSegment );
+
+    PNS_TOPOLOGY topo( m_world );
+    m_tunedPath = topo.AssembleTrivialPath( m_initialSegment );
+
+    m_world->Remove( &m_originLine );
+
+    m_currentWidth = m_originLine.Width();
+    m_currentEnd = VECTOR2I( 0, 0 );
+
+    return true;
+}
+
+
+int PNS_MEANDER_PLACER::origPathLength() const
+{
+    int total = 0;
+    BOOST_FOREACH( const PNS_ITEM* item, m_tunedPath.CItems() )
+    {
+        if( const PNS_LINE* l = dyn_cast<const PNS_LINE*>( item ) )
+        {
+            total += l->CLine().Length();
+        }
+    }
+
+    return total;
+}
+
+
+bool PNS_MEANDER_PLACER::Move( const VECTOR2I& aP, PNS_ITEM* aEndItem )
+{
+    return doMove( aP, aEndItem, m_settings.m_targetLength );
+}
+
+
+bool PNS_MEANDER_PLACER::doMove( const VECTOR2I& aP, PNS_ITEM* aEndItem, int aTargetLength )
+{
+    SHAPE_LINE_CHAIN pre, tuned, post;
+
+    if( m_currentNode )
+        delete m_currentNode;
+
+    m_currentNode = m_world->Branch();
+
+    cutTunedLine( m_originLine.CLine(), m_currentStart, aP, pre, tuned, post );
+
+    m_result = PNS_MEANDERED_LINE( this, false );
+    m_result.SetWidth( m_originLine.Width() );
+    m_result.SetBaselineOffset( 0 );
+
+    for( int i = 0; i < tuned.SegmentCount(); i++ )
+    {
+        const SEG s = tuned.CSegment( i );
+        m_result.AddCorner( s.A );
+        m_result.MeanderSegment( s );
+        m_result.AddCorner( s.B );
+    }
+
+    int lineLen = origPathLength();
+
+    m_lastLength = lineLen;
+    m_lastStatus = TUNED;
+
+    if( compareWithTolerance( lineLen, aTargetLength, m_settings.m_lengthTolerance ) > 0 )
+    {
+        m_lastStatus = TOO_LONG;
+    } else {
+        m_lastLength = lineLen - tuned.Length();
+        tuneLineLength( m_result, aTargetLength - lineLen );
+    }
+
+    BOOST_FOREACH ( const PNS_ITEM* item, m_tunedPath.CItems() )
+    {
+        if( const PNS_LINE* l = dyn_cast<const PNS_LINE*>( item ) )
+        {
+            Router()->DisplayDebugLine( l->CLine(), 5, 30000 );
+        }
+    }
+
+    if( m_lastStatus != TOO_LONG )
+    {
+        tuned.Clear();
+
+        BOOST_FOREACH( PNS_MEANDER_SHAPE* m, m_result.Meanders() )
+        {
+            if( m->Type() != MT_EMPTY )
+            {
+                tuned.Append ( m->CLine( 0 ) );
+            }
+        }
+
+        m_lastLength += tuned.Length();
+
+        int comp = compareWithTolerance( m_lastLength - aTargetLength, 0, m_settings.m_lengthTolerance );
+
+        if( comp > 0 )
+            m_lastStatus = TOO_LONG;
+        else if( comp < 0 )
+            m_lastStatus = TOO_SHORT;
+        else
+            m_lastStatus = TUNED;
+    }
+
+    m_finalShape.Clear();
+    m_finalShape.Append( pre );
+    m_finalShape.Append( tuned );
+    m_finalShape.Append( post );
+    m_finalShape.Simplify();
+
+    return true;
+}
+
+
+bool PNS_MEANDER_PLACER::FixRoute( const VECTOR2I& aP, PNS_ITEM* aEndItem )
+{
+    if( !m_currentNode )
+        return false;
+
+    m_currentTrace = PNS_LINE( m_originLine, m_finalShape );
+    m_currentNode->Add( &m_currentTrace );
+
+    Router()->CommitRouting( m_currentNode );
+    return true;
+}
+
+
+bool PNS_MEANDER_PLACER::CheckFit( PNS_MEANDER_SHAPE* aShape )
+{
+    PNS_LINE l( m_originLine, aShape->CLine( 0 ) );
+
+    if( m_currentNode->CheckColliding( &l ) )
+        return false;
+
+    int w = aShape->Width();
+    int clearance = w + m_settings.m_spacing;
+
+    return m_result.CheckSelfIntersections( aShape, clearance );
+}
+
+
+const PNS_ITEMSET PNS_MEANDER_PLACER::Traces()
+{
+    m_currentTrace = PNS_LINE( m_originLine, m_finalShape );
+    return PNS_ITEMSET( &m_currentTrace );
+}
+
+
+const VECTOR2I& PNS_MEANDER_PLACER::CurrentEnd() const
+{
+    return m_currentEnd;
+}
+
+int PNS_MEANDER_PLACER::CurrentLayer() const
+{
+    return m_initialSegment->Layers().Start();
+}
+
+
+const wxString PNS_MEANDER_PLACER::TuningInfo() const
+{
+    wxString status;
+
+    switch ( m_lastStatus )
+    {
+    case TOO_LONG:
+        status = _( "Too long: " );
+        break;
+    case TOO_SHORT:
+        status = _( "Too short: " );
+        break;
+    case TUNED:
+        status = _( "Tuned: " );
+        break;
+    default:
+        return _( "?" );
+    }
+
+    status += LengthDoubleToString( (double) m_lastLength, false );
+    status += "/";
+    status += LengthDoubleToString( (double) m_settings.m_targetLength, false );
+
+    return status;
+}
+
+
+PNS_MEANDER_PLACER::TUNING_STATUS PNS_MEANDER_PLACER::TuningStatus() const
+{
+    return m_lastStatus;
+}