1 // Copyright (C) 2014-2017 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
18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
21 #ifndef ModelAPI_Feature_H_
22 #define ModelAPI_Feature_H_
25 #include <ModelAPI_Object.h>
26 #include <ModelAPI_Data.h>
27 #include <ModelAPI_Document.h>
34 /**\class ModelAPI_Feature
36 * \brief Feature function that represents the particular functionality
37 * of this operation. Produces results by the arguments.
39 class ModelAPI_Feature : public ModelAPI_Object
41 ///< list of current results of this feature
42 std::list<std::shared_ptr<ModelAPI_Result> > myResults;
43 ///< is feature disabled or not
45 ///< is feature is stable (not editing)
49 /// Returns the unique kind of a feature (like "Point")
50 virtual const std::string& getKind() = 0;
52 /// Returns the group identifier of all features
53 inline static std::string group()
55 static std::string MY_GROUP = "Features";
59 /// Returns document this feature belongs to
60 virtual std::shared_ptr<ModelAPI_Document> document() const
62 return ModelAPI_Object::document();
65 /// Returns the group identifier of this result
66 virtual std::string groupName()
71 /// Computes or recomputes the results
72 virtual void execute() = 0;
74 /// Computes the attribute value on the base of other attributes if the value can be computed
75 /// \param theAttributeId an attribute index to be computed
76 /// \return a boolean value about it is computed
77 virtual bool compute(const std::string& theAttributeId) { return false; };
79 /// Registers error during the execution, causes the ExecutionFailed state
80 MODELAPI_EXPORT virtual void setError(const std::string& theError,
82 bool isTranslate = true);
84 /// Returns error, arose during the execution
85 virtual std::string error() const {
86 return data()->error();
89 /// returns the current results of the feature
90 MODELAPI_EXPORT const std::list<std::shared_ptr<ModelAPI_Result> >& results();
91 /// returns the first result in the list or NULL reference
92 MODELAPI_EXPORT std::shared_ptr<ModelAPI_Result> firstResult() const;
93 /// returns the last result in the list or NULL reference
94 MODELAPI_EXPORT std::shared_ptr<ModelAPI_Result> lastResult();
95 /// sets the alone result
96 MODELAPI_EXPORT void setResult(const std::shared_ptr<ModelAPI_Result>& theResult);
97 /// sets the result by index (zero based), results before this must be set before
98 MODELAPI_EXPORT void setResult(const std::shared_ptr<ModelAPI_Result>& theResult,
100 /// removes the result from the feature
101 MODELAPI_EXPORT void removeResult(const std::shared_ptr<ModelAPI_Result>& theResult);
102 /// removes all results starting from the given index (zero-based)
103 /// \param theSinceIndex - index of the deleted result and all after also will be deleted
104 /// \param theForever - removes results for long period (not just because of feature disabling)
105 /// \param theFlush - if it is false, REDISPLAY message is not flushed
106 MODELAPI_EXPORT void removeResults(const int theSinceIndex,
107 const bool theForever = true, const bool theFlush = true);
108 /// removes all results from the feature
109 MODELAPI_EXPORT void eraseResults(const bool theForever = true);
110 /// removes all fields from this feature: results, data, etc
111 MODELAPI_EXPORT virtual void erase();
112 /// removes the result from the list of feature (not doing in disabled): normally this
113 /// method is not used from features. only internally
114 MODELAPI_EXPORT void eraseResultFromList(const std::shared_ptr<ModelAPI_Result>& theResult);
116 /// Returns true if result is persistent (stored in document) and on undo-redo, save-open
117 /// it is not needed to recompute it.
118 virtual bool isPersistentResult() {return true;}
120 /// Returns true if this feature must not be created: this is just an action
121 /// that is not stored in the features history and data model (like "delete part").
122 virtual bool isAction()
127 /// Returns true if this feature is used as macro: creates other features and then removed.
128 /// \returns false by default
129 MODELAPI_EXPORT virtual bool isMacro() const;
131 /// Returns true if preview update during the edition needed. Otherwise the update-mechanism
132 /// calls the \a execute function only on "apply" of the operation
133 /// \returns true by default
134 MODELAPI_EXPORT virtual bool isPreviewNeeded() const;
136 /// Must return document where the new feature must be added to
137 /// By default it is empty: it is added to the document this method is called to
138 MODELAPI_EXPORT virtual const std::string& documentToAdd();
140 /// Enables/disables the feature. The disabled feature has no results and does not participate in
142 /// \returns true if state is really changed
143 MODELAPI_EXPORT virtual bool setDisabled(const bool theFlag);
145 /// Returns the feature is disabled or not.
146 MODELAPI_EXPORT virtual bool isDisabled();
148 /// To virtually destroy the fields of successors
149 MODELAPI_EXPORT virtual ~ModelAPI_Feature();
151 /// Returns the feature by the object (result).
152 MODELAPI_EXPORT static std::shared_ptr<ModelAPI_Feature> feature(ObjectPtr theObject);
154 /// Set the stable feature flag. If feature is currently editing then it is not stable.
155 /// \returns true if state is really changed
156 MODELAPI_EXPORT virtual bool setStable(const bool theFlag);
158 /// Returns the feature is stable or not.
159 MODELAPI_EXPORT virtual bool isStable();
161 /// Performs some custom feature specific functionality (normally called by some GUI button)
162 /// \param theActionId an action key
163 /// \return a boolean value about it is performed
164 MODELAPI_EXPORT virtual bool customAction(const std::string& theActionId);
167 // Helper methods, aliases for data()->method()
168 // -----------------------------------------------------------------------------------------------
169 /// Returns the name stored in the attribute
170 inline std::string name()
172 return data()->name();
174 /// Returns the Boolean attribute by the identifier
175 inline std::shared_ptr<ModelAPI_AttributeBoolean> boolean(const std::string& theID)
177 return data()->boolean(theID);
179 /// Returns the document reference attribute
180 inline std::shared_ptr<ModelAPI_AttributeDocRef> document(const std::string& theID)
182 return data()->document(theID);
184 /// Returns the real attribute by the identifier
185 inline std::shared_ptr<ModelAPI_AttributeDouble> real(const std::string& theID)
187 return data()->real(theID);
189 /// Returns the integer attribute by the identifier
190 inline std::shared_ptr<ModelAPI_AttributeInteger> integer(const std::string& theID)
192 return data()->integer(theID);
194 /// Returns the integer array attribute by the identifier
195 inline std::shared_ptr<ModelAPI_AttributeIntArray> intArray(const std::string& theID)
197 return data()->intArray(theID);
199 /// Returns the reference attribute by the identifier
200 inline std::shared_ptr<ModelAPI_AttributeRefAttr> refattr(const std::string& theID)
202 return data()->refattr(theID);
204 /// Returns the reference attribute by the identifier
205 inline std::shared_ptr<ModelAPI_AttributeReference> reference(const std::string& theID)
207 return data()->reference(theID);
209 /// Returns the list of references attribute by the identifier
210 inline std::shared_ptr<ModelAPI_AttributeRefList> reflist(const std::string& theID)
212 return data()->reflist(theID);
214 /// Returns the shape selection attribute by the identifier
215 inline std::shared_ptr<ModelAPI_AttributeSelection> selection(const std::string& theID)
217 return data()->selection(theID);
219 /// Returns the list of shape selections attribute by the identifier
220 inline std::shared_ptr<ModelAPI_AttributeSelectionList> selectionList(const std::string& theID)
222 return data()->selectionList(theID);
224 /// Returns the string attribute by the identifier
225 inline std::shared_ptr<ModelAPI_AttributeString> string(const std::string& theID)
227 return data()->string(theID);
229 /// Returns the string array attribute by the identifier
230 inline std::shared_ptr<ModelAPI_AttributeStringArray> stringArray(const std::string& theID)
232 return data()->stringArray(theID);
234 /// Returns the tables attribute by the identifier
235 inline std::shared_ptr<ModelAPI_AttributeTables> tables(const std::string& theID)
237 return data()->tables(theID);
239 /// Returns the attribute by the identifier
240 inline std::shared_ptr<ModelAPI_Attribute> attribute(const std::string& theID)
242 return data()->attribute(theID);
245 /// This method is called just after creation of the object: it must initialize
246 /// all fields, normally initialized in the constructor
247 MODELAPI_EXPORT virtual void init();
249 friend class Model_Document;
250 friend class Model_Objects;
253 //! Pointer on feature object
254 typedef std::shared_ptr<ModelAPI_Feature> FeaturePtr;