router: expose current view area to the router algorithms so that the optimizer could know not to mess with traces/vias not currently visible to the user (wip)

pcbnew/router/pns_algo_base.cpp

@@ -36,4 +36,10 @@ LOGGER* ALGO_BASE::Logger()
     return NULL;
 }
 
+const BOX2I& ALGO_BASE::VisibleViewArea() const
+{
+    auto bb = m_router->VisibleViewArea();
+    return m_router->VisibleViewArea();
+}
+
 }

pcbnew/router/pns_algo_base.h

@@ -23,6 +23,8 @@
 #ifndef __PNS_ALGO_BASE_H
 #define __PNS_ALGO_BASE_H
 
+#include <math/box2.h>
+
 #include "pns_routing_settings.h"
 
 namespace PNS {
@@ -78,6 +80,8 @@ public:
         return m_debugDecorator;
     }
 
+    const BOX2I& VisibleViewArea() const;
+
 protected:
     DEBUG_DECORATOR *m_debugDecorator;
     ROUTER* m_router;

pcbnew/router/pns_router.cpp

@@ -71,9 +71,8 @@ ROUTER::ROUTER()
     m_lastNode = nullptr;
     m_iterLimit = 0;
     m_settings = nullptr;
-    m_showInterSteps = false;
-    m_snapshotIter = 0;
     m_iface = nullptr;
+    m_visibleViewArea.SetMaximum();
 }
 
 

pcbnew/router/pns_router.h

@@ -26,10 +26,10 @@
 
 #include <memory>
 #include <core/optional.h>
-#include <boost/unordered_set.hpp>
 
 #include <layers_id_colors_and_visibility.h>
 #include <geometry/shape_line_chain.h>
+#include <math/box2.h>
 
 #include "pns_routing_settings.h"
 #include "pns_sizes_settings.h"
@@ -186,15 +186,6 @@ public:
     void SetIterLimit( int aX ) { m_iterLimit = aX; }
     int GetIterLimit() const { return m_iterLimit; };
 
-    void SetShowIntermediateSteps( bool aX, int aSnapshotIter = -1 )
-    {
-        m_showInterSteps = aX;
-        m_snapshotIter = aSnapshotIter;
-    }
-
-    bool GetShowIntermediateSteps() const { return m_showInterSteps; }
-    int GetShapshotIter() const { return m_snapshotIter; }
-
     ROUTING_SETTINGS& Settings() { return *m_settings; }
 
     void CommitRouting( NODE* aNode );
@@ -226,6 +217,16 @@ public:
         return m_iface;
     }
 
+    void SetVisibleViewArea( const BOX2I& aExtents )
+    {
+        m_visibleViewArea = aExtents;
+    }
+
+    const BOX2I& VisibleViewArea() const
+    {
+        return m_visibleViewArea;
+    }
+
 private:
     void movePlacing( const VECTOR2I& aP, ITEM* aItem );
     void moveDragging( const VECTOR2I& aP, ITEM* aItem );
@@ -237,6 +238,7 @@ private:
     void markViolations( NODE* aNode, ITEM_SET& aCurrent, NODE::ITEM_VECTOR& aRemoved );
     bool isStartingPointRoutable( const VECTOR2I& aWhere, ITEM* aItem, int aLayer );
 
+    BOX2I             m_visibleViewArea;
     VECTOR2I          m_currentEnd;
     RouterState       m_state;
 
@@ -250,8 +252,6 @@ private:
     ROUTER_IFACE*     m_iface;
 
     int               m_iterLimit;
-    bool              m_showInterSteps;
-    int               m_snapshotIter;
     bool              m_forceMarkObstaclesMode = false;
 
     ROUTING_SETTINGS* m_settings;