From d816b8052e799c31f98cad7d9203198ef42d93b3 Mon Sep 17 00:00:00 2001
From: vsv <vsv@opencascade.com>
Date: Mon, 5 Oct 2020 20:16:03 +0300
Subject: [PATCH] bos #20145: [CEA] Sketch's plane become visible again when
 unticking display of constraints

---
 src/PartSet/PartSet_Module.cpp             |  2 +-
 src/PartSet/PartSet_PreviewSketchPlane.cpp |  7 +++++++
 src/PartSet/PartSet_PreviewSketchPlane.h   | 10 ++++++++++
 src/PartSet/PartSet_WidgetSketchLabel.cpp  |  2 ++
 4 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/src/PartSet/PartSet_Module.cpp b/src/PartSet/PartSet_Module.cpp
index 30d34b993..e5acf1798 100644
--- a/src/PartSet/PartSet_Module.cpp
+++ b/src/PartSet/PartSet_Module.cpp
@@ -1656,7 +1656,7 @@ void PartSet_Module::processEvent(const std::shared_ptr<Events_Message>& theMess
     CompositeFeaturePtr aSketch = mySketchMgr->activeSketch();
     if (aSketch.get()) {
       ModuleBase_Operation* anOperation = myWorkshop->currentOperation();
-      if (PartSet_SketcherMgr::isSketchOperation(anOperation))
+      if (PartSet_SketcherMgr::isSketchOperation(anOperation) && mySketchMgr->previewSketchPlane()->isDisplayed())
         mySketchMgr->previewSketchPlane()->createSketchPlane(aSketch, myWorkshop);
     }
   }
diff --git a/src/PartSet/PartSet_PreviewSketchPlane.cpp b/src/PartSet/PartSet_PreviewSketchPlane.cpp
index 72018bd0f..13c3ab8f1 100644
--- a/src/PartSet/PartSet_PreviewSketchPlane.cpp
+++ b/src/PartSet/PartSet_PreviewSketchPlane.cpp
@@ -71,6 +71,13 @@ void PartSet_PreviewSketchPlane::displaySketchPlane(ModuleBase_IWorkshop* theWor
 }
 
 
+void PartSet_PreviewSketchPlane::clearPlanePreview()
+{
+  myPlane = std::shared_ptr<GeomAPI_AISObject>();
+  myShape = std::shared_ptr<GeomAPI_Shape>();
+}
+
+
 void PartSet_PreviewSketchPlane::createSketchPlane(const CompositeFeaturePtr& theSketch,
                                                    ModuleBase_IWorkshop* theWorkshop)
 {
diff --git a/src/PartSet/PartSet_PreviewSketchPlane.h b/src/PartSet/PartSet_PreviewSketchPlane.h
index c255aca42..0f32c3b0f 100644
--- a/src/PartSet/PartSet_PreviewSketchPlane.h
+++ b/src/PartSet/PartSet_PreviewSketchPlane.h
@@ -74,12 +74,22 @@ public:
   void setSizeOfView(double theSizeOfView, bool isUseSizeOfView,
     const std::shared_ptr<GeomAPI_Pnt>& theCentralPoint = std::shared_ptr<GeomAPI_Pnt>());
 
+  /// Returns True if the plane preview is already created
   bool isPlaneCreated() const {
     return myPlane.get();
   }
 
+  /// Returns current state of the plane preview visibility
+  bool isDisplayed() const { return myPreviewIsDisplayed; }
+
+  /// Displays preview planes
+ /// \param theWorkshop the application workshop
   void displaySketchPlane(ModuleBase_IWorkshop* theWorkshop);
 
+  /// Nullyfies current plane preview object.
+  /// Important: Before call of this function the plane has to be erased from viewer
+  void clearPlanePreview();
+
 private:
   /// Create a square face by parameters
   std::shared_ptr<GeomAPI_AISObject> createPreviewPlane();
diff --git a/src/PartSet/PartSet_WidgetSketchLabel.cpp b/src/PartSet/PartSet_WidgetSketchLabel.cpp
index 2f41d3ed9..87c535a54 100644
--- a/src/PartSet/PartSet_WidgetSketchLabel.cpp
+++ b/src/PartSet/PartSet_WidgetSketchLabel.cpp
@@ -365,6 +365,8 @@ void PartSet_WidgetSketchLabel::updateByPlaneSelected(const ModuleBase_ViewerPrs
     aModule->sketchMgr()->previewSketchPlane()->setSizeOfView(aSizeOfView, isSetSizeOfView);
     if (myViewVisible->isChecked())
       aModule->sketchMgr()->previewSketchPlane()->createSketchPlane(aSketch, myWorkshop);
+    else
+      aModule->sketchMgr()->previewSketchPlane()->clearPlanePreview();
   }
   // 2. if the planes were displayed, change the view projection
 
-- 
2.39.2