1 // Copyright (C) 2014-2019 CEA/DEN, EDF R&D
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 #ifndef Model_Update_H_
21 #define Model_Update_H_
24 #include <ModelAPI_Data.h>
25 #include "Events_Listener.h"
30 class ModelAPI_Object;
31 class ModelAPI_Feature;
32 class ModelAPI_CompositeFeature;
35 /**\class Model_Update
37 * \brief Updates the results of features when it is needed.
39 class Model_Update : public Events_Listener
41 /// Features and results that were modified and not yet processed.
42 /// The second set is the objects that causes this object is modified
43 std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
45 /// Features which arguments were modified by not-persistent changes.
46 /// So, these referencing arguments must be updated
47 /// due to these features info also before execution).
48 std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
50 /// features that must be additionally processed after execution of finish operation
51 std::set<std::shared_ptr<ModelAPI_Feature> > myWaitForFinish;
52 /// to know that some parameter was changed during this operation (to enable update expressions)
53 bool myIsParamUpdated;
54 /// to execute features on finish if preview is needed only on finish operation
56 /// try if processing is currently performed
58 /// map that contains features that must be executed only on finish of the operation
59 /// the value in map is the set of reasons
60 std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
62 /// to avoid infinitive cycling: feature -> count of the processing periods during this update
63 std::map<std::shared_ptr<ModelAPI_Feature>, int > myProcessed;
64 /// if preview in the property panel is blocked any update is postponed until end of operation
65 bool myIsPreviewBlocked;
66 /// disables any update if it is true, even on start/finish operation, undo, etc.
70 /// Is called only once, on startup of the application
73 /// Processes the feature argument update: executes the results
74 MODEL_EXPORT virtual void processEvent(const std::shared_ptr<Events_Message>& theMessage);
77 /// Appends the new modified feature to the myModified, clears myProcessed if needed
78 /// Returns true if some feature really was marked as modified
79 /// theReason is the object that causes modification of this feature
80 /// returns true if something reallsy was added to the modified and must be processed
82 std::shared_ptr<ModelAPI_Feature> theFeature, std::shared_ptr<ModelAPI_Feature> theReason);
84 /// Recoursively checks and updates features if needed (calls the execute method)
85 /// Returns true if feature was updated.
86 bool processFeature(std::shared_ptr<ModelAPI_Feature> theFeature);
88 /// Updates the selection and parametrical arguments before the later feature analysis
89 /// Returns true if something really was updated
90 void updateArguments(std::shared_ptr<ModelAPI_Feature> theFeature);
92 /// Sends the redisplay events for feature and results, updates the updated status
93 void redisplayWithResults(std::shared_ptr<ModelAPI_Feature> theFeature,
94 const ModelAPI_ExecState theState, bool theUpdateState = true);
96 /// On operation start/end/abort the "Just" fileds must be cleared and processed in the right way
97 //! \param theFlushRedisplay a boolean value if the redisplay signal should be flushed
98 void processFeatures(const bool theFlushRedisplay = true);
100 /// Performs the feature execution
101 /// \returns the status of execution
102 void executeFeature(std::shared_ptr<ModelAPI_Feature> theFeature);
104 /// Updates the properties of object because of stability state changes
105 void updateStability(void* theSender);
107 /// Returns true if theFeature modification was caused by theReason
108 /// (may be feature of result of this feature)
110 std::shared_ptr<ModelAPI_Feature>& theFeature, std::shared_ptr<ModelAPI_Object> theReason);
112 /// Updates a selection attributes for the features that possible were affected by creation
113 /// or reorder of features upper in the history line (issue #1757)
114 void updateSelection(const std::set<std::shared_ptr<ModelAPI_Object> >& theObjects);