Issue #1302 Restricting preselection to the first argument only: mirror feature has...

[modules/shaper.git] / src / XGUI / XGUI_Displayer.h

diff --git a/src/XGUI/XGUI_Displayer.h b/src/XGUI/XGUI_Displayer.h
index 78da19457d11969a3d4cdf34a811dd04829fced3..dd221d7bf9cbb9b9398e501f31fa1858270c48e6 100644 (file)
--- a/src/XGUI/XGUI_Displayer.h
+++ b/src/XGUI/XGUI_Displayer.h
@@ -137,12 +137,14 @@ class XGUI_EXPORT XGUI_Displayer: public QObject
   void removeFilters();
 
   /// Sets a flag to the displayer whether the internal viewer can be updated by 
-  /// the updateViewer method call. If it is not enabled, this method do nothing
+  /// the updateViewer method call. If it is not enabled, this method do nothing.
+  /// This state maintain recurse, if the update is blocked twice or three times, the
+  /// viewer will not be updated until it is unblocked necessary times(twice or three in the example).
   /// \param isEnabled a boolean value
   bool enableUpdateViewer(const bool isEnabled);
 
-  /// Returns myEnableUpdateViewer flag
-  bool isUpdateEnabled() const { return myEnableUpdateViewer; }
+  /// Returns true if the viewer update is not blocked
+  bool isUpdateEnabled() const;
 
   /// Updates the viewer
   void updateViewer() const;
@@ -231,15 +233,27 @@ class XGUI_EXPORT XGUI_Displayer: public QObject
   /// Returns Trihedron object if it is displayed
   Handle(AIS_InteractiveObject) getTrihedron() const;
   
-  // Set trihedron active (used in selection) or non active
+  /// Set trihedron active (used in selection) or non active
   void activateTrihedron(bool theIsActive);
 
+  /// Displays/erases thrihedron in current modes. It will be activated or deactivated
+  /// depending on the trihedron visible state and displayer active trihedron state
+  void displayTrihedron(bool theToDisplay) const;
+
+  /// Returns true if the trihedron should be activated in current selection modes
   bool isTrihedronActive() const { return myIsTrihedronActive; }
 
   /// Converts shape type (TopAbs_ShapeEnum) to selection mode
   /// \param theShapeType a shape type from TopAbs_ShapeEnum
   static int getSelectionMode(int theShapeType);
 
+  /// Return true if the object is visible. If the object is feature, it returns true
+  /// if all results of the feature are shown
+  /// \param theDisplayer a displayer
+  /// \param theObject an object
+  /// \return a boolean value
+  static bool isVisible(XGUI_Displayer* theDislayer, const ObjectPtr& theObject);
+
 signals:
   /// Signal on object display
   /// \param theObject a data object
@@ -281,7 +295,8 @@ private:
   void deactivate(ObjectPtr theObject, const bool theUpdateViewer);
 
   /// Find a trihedron in a list of displayed presentations and deactivate it.
-  void deactivateTrihedron() const;
+  /// \param theUpdateViewer an update viewer flag
+  void deactivateTrihedron(const bool theUpdateViewer) const;
 
   /// Opens local context. Does nothing if it is already opened.
   void openLocalContext();
@@ -321,8 +336,8 @@ private:
   /// Selection modes installed for external objects in local context
   QIntList myActiveSelectionModes;
 
-  /// the enable update viewer flag
-  bool myEnableUpdateViewer; 
+  /// Number of blocking of the viewer update. The viewer is updated only if it equals zero
+  int myViewerBlockedRecursiveCount;
 
   // Flag: use trihedgon for selection or not
   bool myIsTrihedronActive;