saving on/off mapView state

Signed-off-by: Evgeniy Saltykov <evgeniysaltykov38@gmail.com>

Author: salevg

QML/Scene3DToolbar.qml

@@ -1370,6 +1370,15 @@ ColumnLayout {
                 }
             }
 */
+
+            Component.onCompleted: {
+                MapViewControlMenuController.onVisibilityChanged(checked)
+            }
+
+
+            Settings {
+                property alias mapViewCheckButton: mapViewCheckButton.checked
+            }
         }
 
         ButtonGroup{

controllers/map_view_control_menu_controller.cpp

@@ -5,24 +5,36 @@
 
 MapViewControlMenuController::MapViewControlMenuController(QObject *parent) :
     QmlComponentController(parent),
-    m_graphicsSceneView(nullptr)
+    m_graphicsSceneView(nullptr),
+    pendingLambda_(nullptr),
+    visibility_(false)
 { }
 
 void MapViewControlMenuController::setGraphicsSceneView(GraphicsScene3dView *sceneView)
 {
     m_graphicsSceneView = sceneView;
+
+    if (pendingLambda_) {
+        pendingLambda_();
+        pendingLambda_ = nullptr;
+    }
 }
 
 void MapViewControlMenuController::onVisibilityChanged(bool state)
 {
     qDebug() << "MapViewControlMenuController::onVisibilityChanged" << state;
 
+    visibility_ = state;
+
     if (m_graphicsSceneView) {
-        m_graphicsSceneView->getMapViewPtr()->setVisible(state);
+        m_graphicsSceneView->getMapViewPtr()->setVisible(visibility_);
         if (state) {
             m_graphicsSceneView->updateMapView();
         }
     }
+    else {
+        tryInitPendingLambda();
+    }
 }
 void MapViewControlMenuController::onUpdateClicked()
 {
@@ -31,6 +43,9 @@ void MapViewControlMenuController::onUpdateClicked()
     if (m_graphicsSceneView) {
         m_graphicsSceneView->getMapViewPtr()->update();
     }
+    else {
+        tryInitPendingLambda();
+    }
 }
 
 MapView* MapViewControlMenuController::getMapViewPtr() const
@@ -45,3 +60,17 @@ void MapViewControlMenuController::findComponent()
 {
     m_component = m_engine->findChild<QObject*>("mapViewControlMenu");
 }
+
+void MapViewControlMenuController::tryInitPendingLambda()
+{
+    if (!pendingLambda_) {
+        pendingLambda_ = [this] () -> void {
+            if (m_graphicsSceneView) {
+                if (auto mapPtr = m_graphicsSceneView->getMapViewPtr(); mapPtr) {
+                    mapPtr->setVisible(visibility_);
+                    mapPtr->update();
+                }
+            }
+        };
+    }
+}

controllers/map_view_control_menu_controller.h

@@ -23,6 +23,11 @@ class MapViewControlMenuController : public QmlComponentController
     virtual void findComponent() override;
 
 private:
+    void tryInitPendingLambda();
+
+    /*data*/
     MapView* getMapViewPtr() const;
     GraphicsScene3dView* m_graphicsSceneView;
+    std::function<void()> pendingLambda_;
+    bool visibility_;
 };