Fix slice sync slice number corner text bug.

src/src/Rendering/infinitiViewer.cxx

@@ -257,8 +257,6 @@ void infinitiViewer::InstallPipeline() {
                                                &infinitiViewer::ChangeSlice);
             this->InteractorStyle->AddObserver(ActorDraggableInteractorStyle::DraggableStyleEvents::SlicedEvent, this,
                                                &infinitiViewer::LoadMeasures);
-            InteractorStyle->AddObserver(ActorDraggableInteractorStyle::SlicedEvent, this,
-                                         &infinitiViewer::UpdateTopLeftCornerInfo);
 
             //for convert vtkEvent to Qt signal
             this->InteractorStyle->AddObserver(ActorDraggableInteractorStyle::DraggableStyleEvents::SlicedEvent, this,
@@ -461,8 +459,8 @@ void infinitiViewer::SetSlice(int slice) {
     if (Fusion && FusionMapper) {
         FusionMapper->SetClippingPlanes(ImageMapper->GetClippingPlanes());
     }
-
     this->Render();
+    UpdateTopLeftCornerInfo();
     if (InteractorStyle){
         double direction = (double)(slice - lastSliceNumber);
         double focusPoint[5] = {.0, .0, .0 };
@@ -503,6 +501,8 @@ void infinitiViewer::applySliceOffset(double offset, double direction){
     // 假设原数据为slice--则需要唯一
     if (direction < 0) offset = offset * -1.0;
     Renderer->GetActiveCamera()->SetDistance(Renderer->GetActiveCamera()->GetDistance() + offset);
+    this->Render();
+    UpdateTopLeftCornerInfo();
 }
 
 vtkSmartPointer<vtkPoints> infinitiViewer::GetSliceBoundPoints() {
@@ -549,6 +549,8 @@ void infinitiViewer::SyncSlicePoint(double *point) {
     ImageMapper->GetBounds(bounds);
     f[SliceOrientation] = focusPoint[SliceOrientation];
     Renderer->GetActiveCamera()->SetFocalPoint(f);
+    this->Render();
+    UpdateTopLeftCornerInfo();
 }
 
 // zoom------------------------------------------------------------------------

src/src/UI/Widget/dicomimageview.h

@@ -162,12 +162,10 @@ public:
 
     void syncSlicePoint(double *point) {
         mImageViewer->SyncSlicePoint(point);
-        mImageViewer->Render();
     }
 
     void applySliceOffset(double offset, double direction){
         mImageViewer->applySliceOffset(offset, direction);
-        mImageViewer->Render();
     }
 
     void loadSeries(SeriesImageSet *series);