Commet for dicomimageview

src/src/view/dicomimageview.cpp

@@ -21,11 +21,13 @@
 DicomImageView::DicomImageView(QWidget* parent)
 	: QFrame(parent)
 {
-
+    //main container
 	QFrame *wrapper = new QFrame(this);
 	wrapper->setObjectName("wrapper");
 
 	QGridLayout *view_layout = new QGridLayout(this);
+
+	//add container and  title bar
 	_titleBar = createMyTitleBar();
 	view_layout->addWidget(_titleBar, 0, 0);
 	view_layout->addWidget(wrapper, 1, 0);
@@ -33,37 +35,31 @@ DicomImageView::DicomImageView(QWidget* parent)
 	view_layout->setSpacing(0);
 	this->setLayout(view_layout);
 
-
+    // create layout for main container
 	QGridLayout* controlLayout = new QGridLayout(wrapper);
-
 	_glWidt = new QVTKOpenGLNativeWidget(wrapper);
 
+	//add QVTKOpenGLNativeWidget to container
     m_glrenWin = vtkSmartPointer <vtkGenericOpenGLRenderWindow>::New();
     _glWidt->SetRenderWindow(m_glrenWin);//set up interacte
-
 	controlLayout->addWidget(_glWidt, 0, 0);
 
-
+    //add scrollbar to container
 	_scrollBar = new QScrollBar(Qt::Orientation::Vertical);
 	_scrollBar->setFocusPolicy(Qt::StrongFocus);
 	_scrollBar->setVisible(false);
 	_scrollBar->setObjectName("scrollbar");
-
-
-
-
 	controlLayout->addWidget(_scrollBar, 0, 1);
 
+	//config container UI
 	controlLayout->setContentsMargins(0, 0, 0, 0);
 	controlLayout->setSpacing(0);
 	wrapper->setLayout(controlLayout);
-	//this->setLayout(controlLayout);
-
 	setAutoFillBackground(true);
 
+	//config self
 	QWidget::setAcceptDrops(true);
 	this->setObjectName("dicomview");
-
 }
 
 //-----------------------------------------------------------------------------
@@ -75,21 +71,26 @@ DicomImageView::~DicomImageView()
     }
 	_thread.quit();//event loop
 	_thread.wait(); //wait until return,block mode
-	_vcr_toolbar->deleteLater();
+	if (_vcr_toolbar){
+        _vcr_toolbar->deleteLater();
+	}
 }
 
 
 bool  DicomImageView::isVCRVisible()
 {
+    if (!_vcr_toolbar) return false;
 	return _vcr_toolbar->isVisible();
 }
 
 void DicomImageView::setVCRVisible(bool visible)
 {
+    if (!_vcr_toolbar) return ;
 	_vcr_toolbar->setVisible(visible);
 }
 void DicomImageView::cineModeOn()
 {
+    if (!_vcr_toolbar) return;
 	//updateVCRToolbarPos();
 	int ax = (this->geometry().bottomLeft().x() + this->geometry().bottomRight().x()) / 2 + VCRHelper::getVCRXOffset();
 	int ay = (this->geometry().bottomLeft().y() + this->geometry().bottomRight().y()) / 2 + VCRHelper::getVCRYOffset();

src/src/view/dicomimageview.h

@@ -201,6 +201,11 @@ private:
 
 
 	void initCineModeThread();
+
+	/**
+	 * create a TitleBar for this widget
+	 * @return
+	 */
 	MyTitleBar* createMyTitleBar();
 	void orphanizeSeriesInstance();
 	void ResetPanZoom();