diff --git a/ArchitectureColoredPainting/src/Editor/PreviewWindow.cpp b/ArchitectureColoredPainting/src/Editor/PreviewWindow.cpp
index dbe317c..410b8af 100644
--- a/ArchitectureColoredPainting/src/Editor/PreviewWindow.cpp
+++ b/ArchitectureColoredPainting/src/Editor/PreviewWindow.cpp
@@ -1,4 +1,5 @@
 #include "PreviewWindow.h"
+#include <QApplication>
 
 PreviewWindow::PreviewWindow(QWidget *parent) : QOpenGLWidget(parent)
 {
@@ -84,7 +85,17 @@ void PreviewWindow::mouseMoveEvent(QMouseEvent* event)
     int dx = event->x() - m_lastPos.x();
     int dy = event->y() - m_lastPos.y();
     if (currentLayer != nullptr) {
-        if (event->buttons() & Qt::LeftButton) {
+        if (QApplication::keyboardModifiers() == Qt::ControlModifier && (event->buttons() & Qt::LeftButton))
+        {
+            currentLayer->property.scale.setX(std::max(0.0, currentLayer->property.scale.x() + dx / 50.0));
+            currentLayer->property.scale.setY(std::max(0.0, currentLayer->property.scale.y() + dy / 50.0));
+        }
+        else if (QApplication::keyboardModifiers() == (Qt::ControlModifier | Qt::ShiftModifier) && (event->buttons() & Qt::LeftButton))
+        {
+            currentLayer->property.scale.setX(std::max(0.0, currentLayer->property.scale.x() * (1.0 + dx / 50.0)));
+            currentLayer->property.scale.setY(std::max(0.0, currentLayer->property.scale.y() * (1.0 + dx / 50.0)));
+        }
+        else if (event->buttons() & Qt::LeftButton) {
             // 如果按下的是左键，那么平移图形
 			currentLayer->property.offset.setX(currentLayer->property.offset.x() + dx);
 			currentLayer->property.offset.setY(currentLayer->property.offset.y() + dy);