router: fix tuning status popup & incorrect length display

pcbnew/router/length_tuner_tool.cpp

@@ -147,6 +147,16 @@ void LENGTH_TUNER_TOOL::handleCommonEvents( const TOOL_EVENT& aEvent )
     }
 }
 
+void LENGTH_TUNER_TOOL::updateStatusPopup( PNS_TUNE_STATUS_POPUP& aPopup )
+{
+    wxPoint p = wxGetMousePosition(); 
+
+    p.x += 20;
+    p.y += 20;
+
+    aPopup.Update( m_router );
+    aPopup.Move( p );
+}
 
 void LENGTH_TUNER_TOOL::performTuning()
 {
@@ -170,13 +180,18 @@ void LENGTH_TUNER_TOOL::performTuning()
         return;
     }
 
+    PNS_MEANDER_PLACER_BASE* placer = static_cast<PNS_MEANDER_PLACER_BASE*>( m_router->Placer() );
+    
+    placer->UpdateSettings( m_savedMeanderSettings );
+
+    VECTOR2I end( m_startSnapPoint );
+
     PNS_TUNE_STATUS_POPUP statusPopup( m_frame );
     statusPopup.Popup();
 
-    PNS_MEANDER_PLACER* placer = static_cast<PNS_MEANDER_PLACER*>( m_router->Placer() );
-    VECTOR2I end;
+    m_router->Move( end, NULL );
+    updateStatusPopup( statusPopup );
 
-    placer->UpdateSettings( m_savedMeanderSettings );
     
     while( OPT_TOOL_EVENT evt = Wait() )
     {
@@ -191,14 +206,8 @@ void LENGTH_TUNER_TOOL::performTuning()
         {
             end = evt->Position();
             m_router->Move( end, NULL );
+            updateStatusPopup( statusPopup );
             
-            wxPoint p = wxGetMousePosition();
-
-            p.x += 20;
-            p.y += 20;
-
-            statusPopup.Update( m_router );
-            statusPopup.Move( p );
         }
         else if( evt->IsClick( BUT_LEFT ) )
         {

pcbnew/router/length_tuner_tool.h

@@ -44,6 +44,9 @@ private:
     void performTuning( );
     int mainLoop( PNS_ROUTER_MODE aMode );
     void handleCommonEvents( const TOOL_EVENT& aEvent );
+    void updateStatusPopup ( PNS_TUNE_STATUS_POPUP& aPopup );
+
+
 
     PNS_MEANDER_SETTINGS m_savedMeanderSettings;
 };

pcbnew/router/pns_meander_placer_base.cpp

@@ -64,7 +64,20 @@ void PNS_MEANDER_PLACER_BASE::cutTunedLine( const SHAPE_LINE_CHAIN& aOrigin,
                                             SHAPE_LINE_CHAIN& aTuned,
                                             SHAPE_LINE_CHAIN& aPost )
 {
-    VECTOR2I n = aOrigin.NearestPoint( aCursorPos );
+    VECTOR2I cp ( aCursorPos );
+
+    if ( cp == aTuneStart ) // we don't like tuning segments with 0 length
+    {
+        int idx = aOrigin.FindSegment( cp );
+        if( idx >= 0 ) 
+        {
+            const SEG& s = aOrigin.CSegment( idx );
+            cp += (s.B - s.A).Resize(2);
+        } else
+            cp += VECTOR2I (2, 5); // some arbitrary value that is not 45 degrees oriented
+    }
+
+    VECTOR2I n = aOrigin.NearestPoint( cp );
     VECTOR2I m = aOrigin.NearestPoint( aTuneStart );
 
     SHAPE_LINE_CHAIN l( aOrigin );
@@ -84,6 +97,7 @@ void PNS_MEANDER_PLACER_BASE::cutTunedLine( const SHAPE_LINE_CHAIN& aOrigin,
     aPre = l.Slice( 0, i_start );
     aPost = l.Slice( i_end, -1 );
     aTuned = l.Slice( i_start, i_end );
+
     aTuned.Simplify();
 }