2 * ModuleBase_Operation.h
4 * Created on: Apr 2, 2014
8 #ifndef ModuleBase_Operation_H
9 #define ModuleBase_Operation_H
11 #include <ModuleBase.h>
12 #include <ModuleBase_ViewerPrs.h>
14 #include <ModelAPI_CompositeFeature.h>
15 #include <ModelAPI_Document.h>
19 #include <QStringList>
21 class ModuleBase_ModelWidget;
22 class ModuleBase_OperationDescription;
23 class ModuleBase_IPropertyPanel;
24 class ModuleBase_ISelection;
25 class ModuleBase_IViewer;
30 \class ModuleBase_Operation
31 * \brief Base class for all operations
33 * Base class for all operations. If you perform an action it is reasonable to create
34 * operation intended for this. This is a base class for all operations which provides
35 * mechanism for correct starting operations, starting operations above already started
36 * ones, committing operations and so on. To create own operation it is reasonable to
37 * inherit it from this class and redefines virtual methods to provide own behavior
38 * Main virtual methods are
39 * - virtual bool isReadyToStart();
40 * - virtual void startOperation();
41 * - virtual void abortOperation();
42 * - virtual void commitOperation();
45 class MODULEBASE_EXPORT ModuleBase_Operation : public QObject
51 /// \param theId the operation identifier
52 /// \param theParent the QObject parent
53 ModuleBase_Operation(const QString& theId = "", QObject* theParent = 0);
55 virtual ~ModuleBase_Operation();
57 /// Returns the operation description
58 /// /returns the instance of the description class
59 ModuleBase_OperationDescription* getDescription() const { return myDescription; }
62 * Must return true if this operation can be launched as nested for any current operation
63 * and it is not necessary to check this operation on validity. By default
64 * the operation is not granted.
65 * The method has to be redefined for granted operations.
67 virtual bool isGranted(QString theId) const;
69 /// Sets a list of model widgets, according to the operation feature xml definition
70 /// \param theXmlRepresentation an xml feature definition
71 /// \param theWidgets a list of widgets
72 //void setModelWidgets(const std::string& theXmlRepresentation,
73 // QList<ModuleBase_ModelWidget*> theWidgets);
75 /// Returns True if data of its feature was modified during operation
76 virtual bool isModified() const { return myIsModified; }
78 /// Returns True id the current operation is launched in editing mode
79 bool isEditOperation() const { return myIsEditing; }
81 /// Returns list of nested features
82 QStringList nestedFeatures() const { return myNestedFeatures; }
84 /// Sets list of nested features
85 void setNestedFeatures(const QStringList& theList) { myNestedFeatures = theList; }
88 // Returns operations Id from it's description
91 /// Returns the operation feature
92 /// \return the feature
93 FeaturePtr feature() const;
96 * Must return True if the operation's feature is valid.
97 * Since IOperation does not have any feature returns false.
99 virtual bool isValid() const;
101 /// Returns whether the nested operations are enabled.
102 /// The state can depend on the operation current state.
103 /// \return enabled state
104 virtual bool isNestedOperationsEnabled() const;
106 /// Sets the operation feature
107 void setFeature(FeaturePtr theFeature);
109 /// Returns True if the current operation works with the given object (feature or result)
110 virtual bool hasObject(ObjectPtr theObj) const;
112 //virtual void keyReleased(const int theKey) {};
114 /// If operation needs to redisplay its result during operation
115 /// then this method has to return True
116 //virtual bool hasPreview() const { return false; }
118 /// Initialisation of operation with preliminary selection
119 /// \param theSelected the list of selected presentations
120 /// \param theHighlighted the list of highlighted presentations
121 /// \param theViewer a viewer to have the viewer the eye position
122 virtual void initSelection(ModuleBase_ISelection* theSelection,
123 ModuleBase_IViewer* /* theViewer*/);
125 virtual void setPropertyPanel(ModuleBase_IPropertyPanel* theProp);
127 ModuleBase_IPropertyPanel* propertyPanel() const { return myPropertyPanel; }
129 /// Activates widgets by preselection if it is accepted
130 virtual bool activateByPreselection();
132 /// If the operation works with feature which is sub-feature of another one
133 /// then this variable has to be initialised by parent feature
134 /// before operation feature creating
135 void setParentFeature(CompositeFeaturePtr theParent) { myParentFeature = theParent; }
136 CompositeFeaturePtr parentFeature() const { return myParentFeature; }
139 void started(); /// the operation is started
140 void aborted(); /// the operation is aborted
141 void committed(); /// the operation is committed
142 void stopped(); /// the operation is aborted or committed
143 void resumed(); /// the operation is resumed
144 void postponed(); /// the operation is postponed
148 /// Public slot. Verifies whether operation can be started and starts operation.
149 /// This slot is not virtual and cannot be redefined. Redefine startOperation method
150 /// to change behavior of operation. There is no point in using this method. It would
151 /// be better to inherit own operator from base one and redefine startOperation method
155 /// Deactivates current operation which can be resumed later.
158 /// Resumes operation
159 /// Public slot. Verifies whether operation can be started and starts operation.
160 /// This slot is not virtual and cannot be redefined. Redefine startOperation method
161 /// to change behavior of operation. There is no point in using this method. It would
162 /// be better to inherit own operator from base one and redefine startOperation method
167 /// Public slot. Aborts operation. This slot is not virtual and cannot be redefined.
168 /// Redefine abortOperation method to change behavior of operation instead
171 /// Commits operation
172 /// Public slot. Commits operation. This slot is not virtual and cannot be redefined.
173 /// Redefine commitOperation method to change behavior of operation instead
176 /// Alias for start/abort slots
177 /// Public slot. Aborts operation if false, else does nothing.
178 /// Provided for S/S compatibility with QAction's toggle(bool)
179 /// \param theState th flag to abort, if it is true, do nothing, overwise abort
180 void setRunning(bool theState);
182 // Data model methods.
183 /// Stores a custom value in model.
184 //virtual void storeCustomValue();
186 /// Slots which listen the mode widget activation
187 /// \param theWidget the model widget
188 //virtual void onWidgetActivated(ModuleBase_ModelWidget* theWidget);
191 /// Virtual method called when operation started (see start() method for more description)
192 /// Default impl calls corresponding slot and commits immediately.
193 virtual void startOperation() {}
195 /// Implementation of specific steps on postpone operation
196 virtual void postponeOperation() {}
198 /// Virtual method called when operation stopped - committed or aborted.
199 virtual void stopOperation() {}
201 /// Virtual method called when operation aborted (see abort() method for more description)
202 virtual void abortOperation() {}
204 /// Virtual method called when operation committed (see commit() method for more description)
205 virtual void commitOperation() {}
207 /// Virtual method called after operation committed (see commit() method for more description)
208 virtual void afterCommitOperation() {}
210 /// Send update message by loop
213 /// Send created message by loop
216 /// Creates an operation new feature
217 /// \param theFlushMessage the flag whether the create message should be flushed
218 /// \param theCompositeFeature the feature that must be used for adding the created object or null
219 /// \returns the created
220 virtual FeaturePtr createFeature(const bool theFlushMessage = true);
222 /// Verifies whether this operator can be commited.
223 /// \return Returns TRUE if current operation can be committed, e.g. all parameters are filled
224 virtual bool canBeCommitted() const;
226 /// Returns pointer to the root document.
227 std::shared_ptr<ModelAPI_Document> document() const;
229 /// Set value to the active widget
230 /// \param theFeature the feature
231 /// \param theX the horizontal coordinate
232 /// \param theY the vertical coordinate
233 /// \return true if the point is set
234 //virtual bool setWidgetValue(ObjectPtr theFeature, double theX, double theY);
236 /// Return a widget value point by the selection and the viewer position
237 /// The default realization returns false
238 /// \param thePrs the presentation
239 /// \param theViewer a viewer to have the viewer the eye position
240 /// \param theX the horizontal coordinate
241 /// \param theY the vertical coordinate
242 /// \return true if the point exits in the selection
243 virtual bool getViewerPoint(ModuleBase_ViewerPrs thePrs,
244 ModuleBase_IViewer* theViewer,
245 double& theX, double& theY);
247 // Removes the preselection information and clears the map of preselection
248 void clearPreselection();
251 FeaturePtr myFeature; /// the operation feature to be handled
253 /// the container to have the operation description
254 ModuleBase_OperationDescription* myDescription;
256 /// Editing feature flag
259 /// Modified feature flag
262 /// List of nested operations IDs
263 QStringList myNestedFeatures;
265 /// List of pre-selected object
266 QList<ModuleBase_ViewerPrs> myPreSelection;
268 /// Access to property panel
269 ModuleBase_IPropertyPanel* myPropertyPanel;
271 /// If the operation works with feature which is sub-feature of another one
272 /// then this variable has to be initialised by parent feature
273 /// before operation feature creating
274 CompositeFeaturePtr myParentFeature;