1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
3 // File: ModuleBase_ModelWidget.h
4 // Created: 25 Apr 2014
5 // Author: Natalia ERMOLAEVA
7 #ifndef MODULEBASE_MODELWIDGET_H
8 #define MODULEBASE_MODELWIDGET_H
10 #include <ModuleBase.h>
11 #include <ModuleBase_ViewerPrs.h>
13 #include <ModelAPI_Feature.h>
19 class ModuleBase_OperationFeature;
20 class Config_WidgetAPI;
21 class ModuleBase_IWorkshop;
24 /**\class ModuleBase_ModelWidget
26 * \brief An abstract custom widget class. This class realization is assumed to create some controls.
27 * The controls values modification should send signal about values change.
29 * Common interface for widgets in the property panel.
30 * Every widget are able to save/restore data from the model and/or to contain other widgets.
33 class MODULEBASE_EXPORT ModuleBase_ModelWidget : public QWidget
37 /// State of the widget
38 enum ValueState { Stored, /// modification is finished and applyed to the model
39 ModifiedInPP, /// modification has not been finished and set to the model yet
40 ModifiedInViewer, /// modification performed by viewer events
41 Reset }; /// the value is reset
44 /// \param theParent the parent object
45 /// \param theData the widget configuration. The attribute of the model widget is obtained from
46 /// \param theParentId is Id of a parent of the current attribute
47 ModuleBase_ModelWidget(QWidget* theParent, const Config_WidgetAPI* theData,
48 const std::string& theParentId);
50 virtual ~ModuleBase_ModelWidget()
54 /// Fills the widget with default values. It calls the resetCustom method and change
55 /// the widget state to Reset if the reset is performed.
56 /// \return true if the widget current value is reset
59 /// Returns the state whether the attribute of the feature is initialized
60 /// \param theObject a model feature to be checked
61 /// \return the boolean result
62 bool isInitialized(ObjectPtr theObject) const;
64 /// Returns true, if default value of the widget should be computed
65 /// on operation's execute, like radius for circle's constraint (can not be zero)
66 bool isComputedDefault() const { return myIsComputedDefault; }
68 /// Returns true, if default value of the widget is defined in the XML and it is not the
70 /// \return the boolean result
71 std::string getDefaultValue() const { return myDefaultValue; }
73 /// Returns true, if the obligatory value of the widget is not defined in the XML or has true value
74 /// \return the boolean result
75 bool isObligatory() const { return myIsObligatory; }
77 /// Returns this parameter value in the xml file
78 /// \return the boolean result
79 bool isUseReset() const { return myUseReset; }
81 /// Returns this widget value state
82 /// \return the enumeration result
83 ValueState getValueState() const { return myState; }
85 /// Returns an attribute error according to the value state
86 /// It exists in all cases excepring the "Store" case
87 QString getValueStateError() const;
89 /// Defines if it is supposed that the widget should interact with the viewer.
90 virtual bool isViewerSelector() { return false; }
92 /// Defines if it is supported to set the value in this widget
93 /// By default it returns true
94 virtual bool canSetValue() const { return true; };
96 /// Set the given wrapped value to the current widget
97 /// This value should be processed in the widget according to the needs
98 /// \param theValues the wrapped selection values
99 /// \param theToValidate the boolean value whether the value should be checked by filters
100 virtual bool setSelection(QList<ModuleBase_ViewerPrs>& theValues,
101 const bool theToValidate)
106 /// Restore value from attribute data to the widget's control. Emits signals before and after store
107 /// \return True in success
110 /// Set focus to the first control of the current widget. The focus policy of the control is checked.
111 /// If the widget has the NonFocus focus policy, it is skipped.
112 /// \return the state whether the widget can accept the focus
113 virtual bool focusTo();
115 /// Select the internal content if it can be selected. It is empty in the default realization
116 virtual void selectContent() {}
118 /// The method called when widget is activated
121 /// The method called when widget is deactivated
122 virtual void deactivate();
124 /// Returns list of widget controls
125 /// \return a control list
126 virtual QList<QWidget*> getControls() const = 0;
128 /// Returns the first or the last control that can accept the focus
129 /// \param isFirst if true, the first controls is returned or the last one
130 /// \return a control from a list of controls
131 QWidget* getControlAcceptingFocus(const bool isFirst);
133 /// FocusIn events processing
134 virtual bool eventFilter(QObject* theObject, QEvent *theEvent);
136 /// \brief Enables processing of focus event on all controls by the widget
137 /// if this widget is not obligatory and set no-focus policy otherwise
138 virtual void enableFocusProcessing();
140 //! Switch On/Off highlighting of the widget
141 virtual void setHighlighted(bool isHighlighted);
143 /// Returns the attribute name
144 /// \returns the string value
145 std::string attributeID() const
147 return myAttributeID;
150 /// Returns the parent of the attribute
151 /// \returns the string value
152 std::string parentID() const
157 /// \return Current feature
158 FeaturePtr feature() const
163 /// Set feature which is processing by active operation
164 /// \param theFeature a feature object
165 /// \param theToStoreValue a value about necessity to store the widget value to the feature
166 void setFeature(const FeaturePtr& theFeature, const bool theToStoreValue = false);
168 /// Editing mode depends on mode of current operation. This value is defined by it.
169 void setEditingMode(bool isEditing) { myIsEditing = isEditing; }
171 /// \return Current Editing mode
172 bool isEditingMode() const { return myIsEditing; }
174 /// Returns true if the event is processed.
175 virtual bool processEnter();
177 /// Sends Update and Redisplay for the given object
178 /// \param theObj is updating object
179 static void updateObject(ObjectPtr theObj);
181 /// Sends Move event for the given object
182 /// \param theObj is object for moving
183 static void moveObject(ObjectPtr theObj);
186 /// The signal about widget values are to be changed
187 void beforeValuesChanged();
188 /// The signal about widget values changed
189 void valuesChanged();
190 /// The signal about widget values modified
191 void valuesModified();
192 /// The signal about widget values are to be changed
193 void afterValuesChanged();
195 /// The signal about widget values are to be restored
196 void beforeValuesRestored();
197 /// The signal about widget values are to be restored
198 void afterValuesRestored();
200 /// The signal about key release on the control, that corresponds to the attribute
201 /// \param theEvent key release event
202 void keyReleased(QKeyEvent* theEvent);
204 /// The signal is emitted if the enter is clicked in the control of the widget
207 /// The signal about the widget is get focus
208 /// \param theWidget the model base widget
209 void focusInWidget(ModuleBase_ModelWidget* theWidget);
211 /// The signal about the widget is lost focus
212 /// \param theWidget the model base widget
213 void focusOutWidget(ModuleBase_ModelWidget* theWidget);
215 /// The signal about value state modification
216 void valueStateChanged(int theState);
219 /// Sets default value of widget. Normally, widget should fetch this value
220 /// from the xml. However, some widgets derived widgets could define it
221 void setDefaultValue(const std::string& theValue);
222 /// \brief Set the attribute name
223 /// \param theAttribute the string value with attribute name
224 void setAttributeID(const std::string& theAttribute)
226 myAttributeID = theAttribute;
229 /// Sets the current value state. If the value is changed, the signal is emitted
230 /// If the current value state is Blocked, this method do nothing
231 /// \param theState a new state
232 /// \return the previous value state
233 ValueState setValueState(const ValueState& theState);
235 /// Blocks the value state change.
236 /// \param theBlocked a block state
237 /// \return the previous value
238 bool blockValueState(const bool theBlocked);
240 /// Compute the feature default value and fill the controls with it
241 /// or store the control value to the feature
242 virtual void initializeValueByActivate();
244 /// Saves the internal parameters to the given feature. Emits signals before and after store
245 /// \return True in success
248 /// Saves the internal parameters to the given feature
249 /// \return True in success
250 virtual bool storeValueCustom() const = 0;
252 /// Restore value from attribute data to the widget's control
253 virtual bool restoreValueCustom() = 0;
255 /// Fills the widget with default values
256 /// \return true if the widget current value is reset
257 virtual bool resetCustom() { return false; };
259 /// The method called when widget is activated
260 virtual void activateCustom() {};
262 /// Sends a message about block/unblock viewer updating
263 /// \param theValue a boolean value
264 static void blockUpdateViewer(const bool theValue);
267 /// Processing of values changed in model widget by store the current value to the feature
268 void onWidgetValuesChanged();
270 /// Changes widget state.
271 void onWidgetValuesModified();
275 /// The attribute name of the model feature
276 std::string myAttributeID;
279 std::string myParentId;
281 /// A feature which is processing by active operation
282 FeaturePtr myFeature;
284 /// Flag which shows that current operation is in editing mode
287 /// Flag which shows whether current widget is obligatory
288 /// The non-obligatory widgets should not accept the focus in the property panel
291 /// The widget value state
295 /// Value should be computed on execute, like radius for circle's constraint (can not be zero)
296 bool myIsComputedDefault;
298 /// the default value, which is defined in the XML for this attribute
299 std::string myDefaultValue;
301 /// the reset state. If it is false, the reset method of the widget is not performed
303 /// blocked flag of modification of the value state
304 bool myIsValueStateBlocked;
306 friend ModuleBase_OperationFeature; // to call storeValue() by commit if value state is ModifiedInPP