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 ModuleBase_OperationFeature_H
21 #define ModuleBase_OperationFeature_H
23 #include <ModuleBase.h>
24 #include <ModuleBase_Operation.h>
26 #include <ModelAPI_Object.h>
27 #include <ModelAPI_CompositeFeature.h>
31 #include <QStringList>
35 class ModuleBase_ModelWidget;
36 class ModuleBase_ISelection;
37 class ModuleBase_IViewer;
38 class ModuleBase_IWorkshop;
39 class ModuleBase_ViewerPrs;
44 * \class ModuleBase_OperationFeature
46 * \brief Base class for all operations
48 * Base class for all operations. If you perform an action it is reasonable to create
49 * operation intended for this. This is a base class for all operations which provides
50 * mechanism for correct starting operations, starting operations above already started
51 * ones, committing operations and so on. To create own operation it is reasonable to
52 * inherit it from this class and redefines virtual methods to provide own behavior
53 * Main virtual methods are
54 * - virtual bool isReadyToStart();
55 * - virtual void startOperation();
56 * - virtual void abortOperation();
57 * - virtual void commitOperation();
60 class MODULEBASE_EXPORT ModuleBase_OperationFeature : public ModuleBase_Operation
66 /// Appends to operation's history id, if it is an "edit" operation (myIsEditing == true)
67 static QString EditSuffix() { return "_E"; }
69 /// \param theId the operation identifier
70 /// \param theParent the QObject parent
71 ModuleBase_OperationFeature(const QString& theId = "", QObject* theParent = 0);
73 virtual ~ModuleBase_OperationFeature();
75 /// Returns True id the current operation is launched in editing mode
76 bool isEditOperation() const { return myIsEditing; }
78 /// Change the operation mode from create to edit.
79 /// The transaction and the operation name in the model history of transaction are the same.
80 /// It updates the edit state in the widgets of property panel
81 /// \param isEditState boolean state whether the operation should become editing or creating
82 // \param theRestartTransaction if true, the current model transaction is committed and
83 /// the new one is started
84 void setEditOperation(const bool& isEditState/*const bool theRestartTransaction*/);
86 /// Returns the operation feature
87 /// \return the feature
88 FeaturePtr feature() const;
90 /// Must return True if the operation's feature is valid.
91 /// Since IOperation does not have any feature returns false.
92 virtual bool isValid() const;
94 /// Sets the operation feature
95 void setFeature(FeaturePtr theFeature);
97 /// Returns True if the current operation works with the given object (feature or result)
98 virtual bool hasObject(ObjectPtr theObj) const;
100 /// Returns true if the object is displayed when the operation was started
101 /// \param theObject a feature or result of the operation feature
102 /// \return boolean value whether the object display state was changed
103 virtual bool isDisplayedOnStart(ObjectPtr theObject);
105 /// Initialisation of operation with preliminary selection
106 /// \param thePreSelected a container of selected presentations
107 virtual void initSelection(
108 const QList<std::shared_ptr<ModuleBase_ViewerPrs>>& thePreSelected);
110 /// Fill internal map by preselection
111 /// \param theValues a list of preselection
112 void setPreselection(const QList<std::shared_ptr<ModuleBase_ViewerPrs>>& theValues);
114 /// \brief Set property pane to the operation
115 /// \param theProp a property panel instance
116 virtual void setPropertyPanel(ModuleBase_IPropertyPanel* theProp);
118 // \return Currently installed property panel
119 //ModuleBase_IPropertyPanel* propertyPanel() const { return myPropertyPanel; }
121 /// Activates widgets by preselection if it is accepted.
122 /// \param theGreedAttributeId a greed attribute id if there is in the current feature
123 /// \return last filled widget
124 virtual ModuleBase_ModelWidget* activateByPreselection(const std::string& theGreedAttributeId);
126 /// If the operation works with feature which is sub-feature of another one
127 /// then this variable has to be initialised by parent feature
128 /// before operation feature creating
129 void setParentFeature(CompositeFeaturePtr theParent);
131 /// \return Installed parent feature (can be NULL)
132 CompositeFeaturePtr parentFeature() const;
134 /// Stores the previous to the operation current feature
135 /// \param theFeature a feature
136 void setPreviousCurrentFeature(const FeaturePtr& theFeature);
138 /// Returns the previous to the operation current feature
139 /// \return theFeature a feature
140 FeaturePtr previousCurrentFeature();
142 /// Set whether the operation should be aborted. By default the state is false in operation
143 /// \param theState abort state
144 void setNeedToBeAborted(const bool theState) { myNeedToBeAborted = theState; }
146 /// Returns valid state of the operation
147 /// \return custom validity state (it is almost always true)
148 bool isNeedToBeAborted() const { return myNeedToBeAborted; }
152 /// Public slot. Verifies whether operation can be started and starts operation.
153 /// This slot is not virtual and cannot be redefined. Redefine startOperation method
154 /// to change behavior of operation. There is no point in using this method. It would
155 /// be better to inherit own operator from base one and redefine startOperation method
157 /// \return true if the start is successful
158 virtual bool start();
161 /// Public slot. Aborts operation. This slot is not virtual and cannot be redefined.
162 /// Redefine abortOperation method to change behavior of operation instead
165 /// Commits operation
166 /// Public slot. Commits operation. This slot is not virtual and cannot be redefined.
167 /// Redefine commitOperation method to change behavior of operation instead
171 /// Displays the feature/results if it is hidden. It will be hided in stopOperation
172 virtual void startOperation();
174 /// Hide feature/results if they were hided on start
175 virtual void stopOperation();
177 /// Creates an operation new feature
178 /// \param theFlushMessage the flag whether the create message should be flushed
179 /// \returns the created feature
180 virtual FeaturePtr createFeature(const bool theFlushMessage = true);
182 /// Removes the preselection information and clears the map of preselection
183 void clearPreselection();
186 /// The operation feature to be handled
187 FeaturePtr myFeature;
189 /// a list of hidden objects, whic are diplayed by operation start
190 /// and should be hidden by operation stop
191 std::set<ObjectPtr> myVisualizedObjects;
193 /// Editing feature flag
196 /// State used only if the operation should not be commited
197 bool myNeedToBeAborted;
199 /// List of pre-selected object
200 QList<std::shared_ptr<ModuleBase_ViewerPrs>> myPreSelection;
202 /// If the operation works with feature which is sub-feature of another one
203 /// then this variable has to be initialised by parent feature
204 /// before operation feature creating
205 CompositeFeaturePtr myParentFeature;
207 /// Last current feature before editing operation. It is cashed when Edit operation is started
208 /// in order to restore the document current feature on commit/abort this operation.
209 FeaturePtr myPreviousCurrentFeature;