From 954ebefc4c380d686fd13d5193589a2158966836 Mon Sep 17 00:00:00 2001
From: Ichthyostega <prg@ichthyostega.de>
Date: Wed, 10 Oct 2012 05:09:03 +0200
Subject: [PATCH] draft implementation of the PlanningStepGenerator

---
 src/proc/engine/job-planning.hpp | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/src/proc/engine/job-planning.hpp b/src/proc/engine/job-planning.hpp
index 9a4e90344..c45bf1389 100644
--- a/src/proc/engine/job-planning.hpp
+++ b/src/proc/engine/job-planning.hpp
@@ -263,6 +263,23 @@ namespace engine {
       FrameLocator* locationGenerator_;
       FrameCoord    currentLocation_;
       
+      //////////////////////////////////////////TODO duplicated storage of a FrameCoord record
+      //////////////////////////////////////////TODO nextEvaluation_ is only needed to initialise the "current" sequence 
+      //////////////////////////////////////////TODO within the RecursiveSelfIntegration strategy. Maybe this storage could be collapsed?
+      mutable JobPlanning nextEvaluation_;
+      
+      JobPlanning&
+      use_current_location_as_planning_start()
+        {
+          JobTicket& processingPlan = locationGenerator_->getJobTicketFor (currentLocation_);
+          
+          nextEvaluation_ = JobPlanning(processingPlan.startExploration()
+                                       ,currentLocation_);
+          return nextEvaluation_;
+        }
+      
+      
+      
     public:
       typedef JobPlanning value_type;
       typedef JobPlanning& reference;
@@ -288,13 +305,13 @@ namespace engine {
       friend JobPlanning&
       yield (PlanningStepGenerator const& gen)
       {
-        UNIMPLEMENTED ("generate a single frame job planning tree");  ///return *(seq.feed());
+        return unConst(gen).use_current_location_as_planning_start();
       }
       
       friend void
       iterNext (PlanningStepGenerator & gen)
       {
-        UNIMPLEMENTED ("proceed to next frame");  ///////seq.iterate();
+        gen.currentLocation_ = gen.locationGenerator_->getNextFrame (gen.currentLocation_);
       }      
     };