diff --git a/ArchitectureColoredPainting/src/Editor/EditorWidgetItem.cpp b/ArchitectureColoredPainting/src/Editor/EditorWidgetItem.cpp
index 01ca5b3..9411fe8 100644
--- a/ArchitectureColoredPainting/src/Editor/EditorWidgetItem.cpp
+++ b/ArchitectureColoredPainting/src/Editor/EditorWidgetItem.cpp
@@ -14,6 +14,7 @@ EditorWidgetItem::EditorWidgetItem(QString filePath,QWidget *parent) : QWidget(p
     elementInfoDisplayWidget = dynamic_cast<ElementPoolWidget *>(tabWidget->widget(1));
     qDebug() << layerInfoDisplayWidget;
     qDebug() << elementInfoDisplayWidget;
+	connect(treeWidget, &LayerTreeWidget::displayLayerChange, previewWindow, &PreviewWindow::currentLayerChanged);
 	connect(treeWidget, &LayerTreeWidget::requireRefreshElementWidget, elementInfoDisplayWidget, &ElementPoolWidget::refresh);
     connect(layerInfoDisplayWidget, &InfoDisplayWidget::requireRefreshElementWidget, elementInfoDisplayWidget, &ElementPoolWidget::refresh);
     connect(treeWidget, &LayerTreeWidget::displayLayerChange, this, &EditorWidgetItem::onLayerChange);
diff --git a/ArchitectureColoredPainting/src/Editor/GraphicElement.cpp b/ArchitectureColoredPainting/src/Editor/GraphicElement.cpp
index 0c7bf52..403ae3f 100644
--- a/ArchitectureColoredPainting/src/Editor/GraphicElement.cpp
+++ b/ArchitectureColoredPainting/src/Editor/GraphicElement.cpp
@@ -47,6 +47,7 @@ PixelPath SimpleElement::getPaintObject(std::vector<std::shared_ptr<LayerStyle>>
 	PixelPath result;
 	Renderer::ElementStyleStrokeDemo demo(2);
 	auto [img, mov] = renderer->drawElement(painterPath, demo, 1.0);
+	//qDebug() << mov;
 	//qDebug() << img << " ------";
 	result.addImage(img, mov);
 	//result.addPath(painterPath);
diff --git a/ArchitectureColoredPainting/src/Editor/PreviewWindow.cpp b/ArchitectureColoredPainting/src/Editor/PreviewWindow.cpp
index 0db3c48..2bdcdc7 100644
--- a/ArchitectureColoredPainting/src/Editor/PreviewWindow.cpp
+++ b/ArchitectureColoredPainting/src/Editor/PreviewWindow.cpp
@@ -10,6 +10,7 @@ PreviewWindow::PreviewWindow(QWidget *parent) : QOpenGLWidget(parent)
     painter->setRenderHint(QPainter::SmoothPixmapTransform);
     painter->setRenderHint(QPainter::HighQualityAntialiasing);
     layerManager = nullptr;
+    currentLayer = nullptr;
 }
 
 void PreviewWindow::initialize(LayerManager *layerManager,QSize windowSize)
@@ -47,6 +48,14 @@ void PreviewWindow::paintGL()
     painter->setRenderHint(QPainter::Antialiasing);
     painter->setRenderHint(QPainter::HighQualityAntialiasing);
     layerManager->paint(painter,this->size());
+    if (currentLayer != nullptr)
+    {
+        QPen pen = painter->pen(); // 获取当前的画笔
+        pen.setStyle(Qt::DashLine); // 设置画笔样式为虚线
+        painter->setPen(pen); // 应用画笔设置
+        painter->drawRect(this->currentLayer->getCache().getBoundingRect()); // 绘制矩形
+    }
+
     painter->end();
 }
 
@@ -56,4 +65,14 @@ void PreviewWindow::resizeGL(int w, int h)
 
 Renderer::ElementRenderer* const PreviewWindow::getRenderer()const {
     return this->renderer;
+}
+
+void PreviewWindow::currentLayerChanged(LayerWrapper* layer)
+{
+    this->currentLayer = layer;
+}
+
+void PreviewWindow::refresh()
+{
+    this->repaint();
 }
\ No newline at end of file
diff --git a/ArchitectureColoredPainting/src/Editor/PreviewWindow.h b/ArchitectureColoredPainting/src/Editor/PreviewWindow.h
index 9a0a4bc..9c89f80 100644
--- a/ArchitectureColoredPainting/src/Editor/PreviewWindow.h
+++ b/ArchitectureColoredPainting/src/Editor/PreviewWindow.h
@@ -19,6 +19,8 @@ class PreviewWindow : public QOpenGLWidget, protected QOpenGLFunctions
     LayerManager *layerManager;
 	Renderer::ElementRenderer* renderer;
     QSize logicalSize;
+	QRectF viewportRect;
+    LayerWrapper* currentLayer;
 
   public:
     PreviewWindow(QWidget *parent = nullptr);
@@ -28,4 +30,8 @@ class PreviewWindow : public QOpenGLWidget, protected QOpenGLFunctions
     void paintGL() override;
     void resizeGL(int w, int h) override;
     Renderer::ElementRenderer* const getRenderer()const;
+
+  public slots:
+    void currentLayerChanged(LayerWrapper*);
+    void refresh();
 };
diff --git a/ArchitectureColoredPainting/src/Editor/RightBar/LayerTreeWidget.cpp b/ArchitectureColoredPainting/src/Editor/RightBar/LayerTreeWidget.cpp
index 1889d70..f6962db 100644
--- a/ArchitectureColoredPainting/src/Editor/RightBar/LayerTreeWidget.cpp
+++ b/ArchitectureColoredPainting/src/Editor/RightBar/LayerTreeWidget.cpp
@@ -13,10 +13,14 @@ LayerTreeWidget::LayerTreeWidget(QWidget *parent)
     connect(this, &QTreeWidget::customContextMenuRequested, this, &LayerTreeWidget::popMenu);
     connect(this, &QTreeWidget::currentItemChanged, [=](QTreeWidgetItem *currentItem) {
         this->selectedItem = currentItem;
-		if(this->selectedItem !=nullptr)
-            emit displayLayerChange(this->selectedItem->data(0, Qt::UserRole).value<LayerWrapper *>());
-        else
-			emit displayLayerChange(nullptr);
+        if (this->selectedItem != nullptr) {
+            auto layer = this->selectedItem->data(0, Qt::UserRole).value<LayerWrapper*>();
+            emit displayLayerChange(layer);
+        }    
+        else {
+            emit displayLayerChange(nullptr);
+        }
+        emit requireRefreshPreview();
     });
     // connect(this, &QTreeWidget::itemDoubleClicked, this, &LayerTreeWidget::onItemDoubleClicked);
 }
diff --git a/ArchitectureColoredPainting/src/Editor/RightBar/LayerTreeWidget.h b/ArchitectureColoredPainting/src/Editor/RightBar/LayerTreeWidget.h
index ca784fd..e7472dd 100644
--- a/ArchitectureColoredPainting/src/Editor/RightBar/LayerTreeWidget.h
+++ b/ArchitectureColoredPainting/src/Editor/RightBar/LayerTreeWidget.h
@@ -20,7 +20,7 @@ class LayerTreeWidget : public QTreeWidget
     // void mouseDoubleClickEvent(QMouseEvent *event) override;
     // void onItemDoubleClicked(QTreeWidgetItem *item, int column = 0);
 
-  signals:
+signals:
     void displayLayerChange(LayerWrapper *);
     void requireRefreshPreview();
 	void requireRefreshElementWidget();