1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
3 // File: Model_Update.hxx
4 // Created: 25 Jun 2014
5 // Author: Mikhail PONIKAROV
7 #ifndef Model_Update_H_
8 #define Model_Update_H_
11 #include <ModelAPI_Data.h>
12 #include "Events_Listener.h"
17 class ModelAPI_Object;
18 class ModelAPI_Feature;
19 class ModelAPI_CompositeFeature;
22 /**\class Model_Update
24 * \brief Updates the results of features when it is needed.
26 class Model_Update : public Events_Listener
28 /// Features and results that were modified and not yet processed.
29 /// The second set is the objects that causes this object is modified
30 std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
32 /// Features which arguments were modified by not-persistent changes.
33 /// So, these referencing arguments must be updated
34 /// due to these features info also before execution).
35 std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
37 /// features that must be additionally processed after execution of finish operation
38 std::set<std::shared_ptr<ModelAPI_Feature> > myWaitForFinish;
39 /// to know that some parameter was changed during this operation (to enable update expressions)
40 bool myIsParamUpdated;
41 /// to execute features on finish if preview is needed only on finish operation
43 /// try if processing is currently performed
45 /// set that contains features that must be executed only on finish of the operation
46 std::set<std::shared_ptr<ModelAPI_Feature> > myProcessOnFinish;
47 /// to avoid infinitive cycling: feature -> count of the processing periods during this update
48 std::map<std::shared_ptr<ModelAPI_Feature>, int > myProcessed;
49 /// if preview in hte property panel is blocked and
50 /// any update is postponed until the end of operation
51 bool myIsPreviewBlocked;
54 /// Is called only once, on startup of the application
57 /// Processes the feature argument update: executes the results
58 MODEL_EXPORT virtual void processEvent(const std::shared_ptr<Events_Message>& theMessage);
61 /// Appends the new modified feature to the myModified, clears myProcessed if needed
62 /// Returns true if some feature really was marked as modified
63 /// theReason is the object that causes modification of this feature
64 /// returns true if something reallsy was added to the modified and must be processed
66 std::shared_ptr<ModelAPI_Feature> theFeature, std::shared_ptr<ModelAPI_Feature> theReason);
68 /// Recoursively checks and updates features if needed (calls the execute method)
69 /// Returns true if feature was updated.
70 bool processFeature(std::shared_ptr<ModelAPI_Feature> theFeature);
72 /// Updates the selection and parametrical arguments before the later feature analysis
73 /// Returns true if something really was updated
74 void updateArguments(std::shared_ptr<ModelAPI_Feature> theFeature);
76 /// Sends the redisplay events for feature and results, updates the updated status
77 void redisplayWithResults(std::shared_ptr<ModelAPI_Feature> theFeature,
78 const ModelAPI_ExecState theState);
80 /// On operation start/end/abort the "Just" fileds must be cleared and processed in the right way
81 //! \param theFlushRedisplay a boolean value if the redisplay signal should be flushed
82 void processFeatures(const bool theFlushRedisplay = true);
84 /// Performs the feature execution
85 /// \returns the status of execution
86 void executeFeature(std::shared_ptr<ModelAPI_Feature> theFeature);
88 /// Updates the properties of object because of stability state changes
89 void updateStability(void* theSender);
91 /// Returns true if theFeature modification was caused by theReason
92 /// (may be feature of result of this feature)
94 std::shared_ptr<ModelAPI_Feature>& theFeature, std::shared_ptr<ModelAPI_Object> theReason);
96 /// Updates a selection attributes for the features that possible were affected by creation
97 /// or reorder of features upper in the history line (issue #1757)
98 void updateSelection(const std::set<std::shared_ptr<ModelAPI_Object> >& theObjects);