diff --git a/plotview.cpp b/plotview.cpp
index 6dd1bab..f2c4a62 100644
--- a/plotview.cpp
+++ b/plotview.cpp
@@ -18,6 +18,7 @@
  */
 
 #include "plotview.h"
+#include <QApplication>
 #include <QDebug>
 #include <QPainter>
 #include <QScrollBar>
@@ -107,6 +108,22 @@ void PlotView::enableCursors(bool enabled)
     viewport()->update();
 }
 
+bool PlotView::eventFilter(QObject * obj, QEvent *event)
+{
+    if (event->type() == QEvent::Wheel) {
+        QWheelEvent *wheelEvent = (QWheelEvent*)event;
+        if (QApplication::keyboardModifiers() & Qt::ControlModifier) {
+            if (wheelEvent->angleDelta().y() > 0) {
+                emit zoomIn();
+            } else if (wheelEvent->angleDelta().y() < 0) {
+                emit zoomOut();
+            }
+            return true;
+        }
+    }
+    return false;
+}
+
 void PlotView::invalidateEvent()
 {
     horizontalScrollBar()->setMinimum(0);
diff --git a/plotview.h b/plotview.h
index 5e9e6bd..6c97476 100644
--- a/plotview.h
+++ b/plotview.h
@@ -51,6 +51,7 @@ public slots:
     void setPowerMax(int power);
 
 protected:
+    bool eventFilter(QObject * obj, QEvent *event) override;
     void paintEvent(QPaintEvent *event);
     void resizeEvent(QResizeEvent * event);
     void scrollContentsBy(int dx, int dy);