Changeset 88489 in vbox for trunk/src/VBox

Timestamp:

Apr 13, 2021 10:27:54 AM (4 years ago)

Author:

vboxsync

Message:

FE/Qt: bugref:9831. Wheel zoom

File:

• trunk/src/VBox/Frontends/VirtualBox/src/helpbrowser/UIHelpViewer.cpp (modified) (1 diff)

trunk/src/VBox/Frontends/VirtualBox/src/helpbrowser/UIHelpViewer.cpp

@@ -573 +573 @@
 void UIHelpViewer::wheelEvent(QWheelEvent *pEvent)
 {
-    if (m_fOverlayMode)
-        return;
-    /* QTextBrowser::wheelEvent scales font when some modifiers are pressed. We dont want: */
-    if (pEvent && pEvent->modifiers() == Qt::NoModifier)
+    if (m_fOverlayMode && !pEvent)
+        return;
+    /* QTextBrowser::wheelEvent scales font when some modifiers are pressed. We dont want that: */
+    if (pEvent->modifiers() == Qt::NoModifier)
         QTextBrowser::wheelEvent(pEvent);
+    else if (pEvent->modifiers() == Qt::ShiftModifier)
+    {
+        if (pEvent->angleDelta().y() < 0)
+            zoom(ZoomOperation_In);
+        else if (pEvent->angleDelta().y() > 0)
+            zoom(ZoomOperation_Out);
+    }
 }