src/Model/Model_Update.cpp

   1 // File:        Model_Update.cxx
   2 // Created:     25 Jun 2014
   3 // Author:      Mikhail PONIKAROV
   4
   5 #include <Model_Update.h>
   6 #include <Model_Document.h>
   7 #include <ModelAPI_Feature.h>
   8 #include <ModelAPI_Data.h>
   9 #include <ModelAPI_Document.h>
  10 #include <ModelAPI_Events.h>
  11 #include <ModelAPI_AttributeReference.h>
  12 #include <ModelAPI_AttributeRefList.h>
  13 #include <ModelAPI_Result.h>
  14 #include <Events_Loop.h>
  15 #include <Events_LongOp.h>
  16
  17 using namespace std;
  18
  19 Model_Update MY_INSTANCE;  /// the only one instance initialized on load of the library
  20
  21 Model_Update::Model_Update()
  22 {
  23   Events_Loop::loop()->registerListener(this, Events_Loop::eventByName(EVENT_OBJECT_CREATED));
  24   Events_Loop::loop()->registerListener(this, Events_Loop::eventByName(EVENT_OBJECT_UPDATED));
  25 }
  26
  27 void Model_Update::processEvent(const Events_Message* theMessage)
  28 {
  29   if (isExecuted)
  30     return;  // nothing to do: it is executed now
  31   //Events_LongOp::start(this);
  32   isExecuted = true;
  33   const ModelAPI_ObjectUpdatedMessage* aMsg =
  34       dynamic_cast<const ModelAPI_ObjectUpdatedMessage*>(theMessage);
  35   myInitial = aMsg->objects();
  36   // collect all documents involved into the update
  37   set<boost::shared_ptr<ModelAPI_Document> > aDocs;
  38   set<boost::shared_ptr<ModelAPI_Object> >::iterator aFIter = myInitial.begin();
  39   for (; aFIter != myInitial.end(); aFIter++) {
  40     aDocs.insert((*aFIter)->document());
  41   }
  42   // iterate all features of features-documents to update them (including hidden)
  43   set<boost::shared_ptr<ModelAPI_Document> >::iterator aDIter = aDocs.begin();
  44   for (; aDIter != aDocs.end(); aDIter++) {
  45     int aNbFeatures = (*aDIter)->size(ModelAPI_Feature::group(), true);
  46     for (int aFIndex = 0; aFIndex < aNbFeatures; aFIndex++) {
  47       FeaturePtr aFeature = boost::dynamic_pointer_cast<ModelAPI_Feature>(
  48           (*aDIter)->object(ModelAPI_Feature::group(), aFIndex, true));
  49       if (aFeature)
  50         updateFeature(aFeature);
  51     }
  52   }
  53   myUpdated.clear();
  54   // flush
  55   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
  56   Events_Loop::loop()->flush(EVENT_DISP);
  57   //Events_LongOp::end(this);
  58   isExecuted = false;
  59 }
  60
  61 bool Model_Update::updateFeature(FeaturePtr theFeature)
  62 {
  63   // check it is already processed
  64   if (myUpdated.find(theFeature) != myUpdated.end())
  65     return myUpdated[theFeature];
  66   // check all features this feature depended on (recursive call of updateFeature)
  67   bool aMustbeUpdated = myInitial.find(theFeature) != myInitial.end();
  68   if (theFeature) {  // only real feature contains references to other objects
  69     // references
  70     list<boost::shared_ptr<ModelAPI_Attribute> > aRefs = theFeature->data()->attributes(
  71         ModelAPI_AttributeReference::type());
  72     list<boost::shared_ptr<ModelAPI_Attribute> >::iterator aRefsIter = aRefs.begin();
  73     for (; aRefsIter != aRefs.end(); aRefsIter++) {
  74       boost::shared_ptr<ModelAPI_Object> aSub = boost::dynamic_pointer_cast<
  75           ModelAPI_AttributeReference>(*aRefsIter)->value();
  76       if (updateObject(aSub)) {
  77         aMustbeUpdated = true;
  78       }
  79     }
  80     // lists of references
  81     aRefs = theFeature->data()->attributes(ModelAPI_AttributeRefList::type());
  82     for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
  83       list<ObjectPtr> aListRef = boost::dynamic_pointer_cast<ModelAPI_AttributeRefList>(*aRefsIter)
  84           ->list();
  85       list<ObjectPtr>::iterator aListIter = aListRef.begin();
  86       for (; aListIter != aListRef.end(); aListIter++) {
  87         boost::shared_ptr<ModelAPI_Object> aSub = *aListIter;
  88         if (updateObject(aSub)) {
  89           aMustbeUpdated = true;
  90         }
  91       }
  92     }
  93     // execute feature if it must be updated
  94     if (aMustbeUpdated) {
  95
  96       if (boost::dynamic_pointer_cast<Model_Document>(theFeature->document())->executeFeatures() ||
  97           !theFeature->isPersistentResult())
  98         theFeature->execute();
  99       // redisplay all results
 100       static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 101       const std::list<boost::shared_ptr<ModelAPI_Result> >& aResults = theFeature->results();
 102       std::list<boost::shared_ptr<ModelAPI_Result> >::const_iterator aRIter = aResults.begin();
 103       for (; aRIter != aResults.cend(); aRIter++) {
 104         boost::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 105         myUpdated[aRes] = true;
 106         ModelAPI_EventCreator::get()->sendUpdated(aRes, EVENT_DISP);
 107       }
 108       // to redisplay "presentable" feature (for ex. distance constraint)
 109       ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 110     } else {  // returns also true is results were updated: for sketch that refers to sub-features but results of sub-features were changed
 111       const std::list<boost::shared_ptr<ModelAPI_Result> >& aResults = theFeature->results();
 112       std::list<boost::shared_ptr<ModelAPI_Result> >::const_iterator aRIter = aResults.begin();
 113       for (; aRIter != aResults.cend(); aRIter++) {
 114         if (myInitial.find(*aRIter) != myInitial.end()) {
 115           aMustbeUpdated = true;
 116           break;
 117         }
 118       }
 119     }
 120   }
 121   myUpdated[theFeature] = aMustbeUpdated;
 122   return aMustbeUpdated;
 123 }
 124
 125 bool Model_Update::updateObject(boost::shared_ptr<ModelAPI_Object> theObject)
 126 {
 127   if (!theObject)
 128     return false;
 129   FeaturePtr aFeature = boost::dynamic_pointer_cast<ModelAPI_Feature>(theObject);
 130   if (aFeature) {  // for feature just call update Feature
 131     return updateFeature(aFeature);
 132   }
 133   // check general object, possible just a result
 134   if (myUpdated.find(theObject) != myUpdated.end())
 135     return myUpdated[theObject];  // already processed
 136   // check the feature of this object must be executed
 137   ResultPtr aResult = boost::dynamic_pointer_cast<ModelAPI_Result>(theObject);
 138   if (aResult) {
 139     FeaturePtr aResFeature = aResult->document()->feature(aResult);
 140     if (aResFeature) {
 141       return updateFeature(aResFeature);
 142     }
 143   }
 144   if (myInitial.find(theObject) != myInitial.end())
 145     return true;
 146   return false;  // nothing is known
 147 }