Changeset 77156 in vbox for trunk/src/VBox/Frontends/VirtualBox

Timestamp:

Feb 4, 2019 6:10:00 PM (6 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

128631

Message:

FE/Qt: bugref:9373: Extend UIGraphicsScrollArea with redirected scrolling possibilities.

File:

• trunk/src/VBox/Frontends/VirtualBox/src/widgets/graphics/UIGraphicsScrollArea.cpp (modified) (1 diff)

trunk/src/VBox/Frontends/VirtualBox/src/widgets/graphics/UIGraphicsScrollArea.cpp

@@ -106 +106 @@
         layoutWidgets();
 
+    /* Handle redirected wheel events: */
+    if (pEvent->type() == QEvent::Wheel)
+    {
+        QWheelEvent *pWheelEvent = static_cast<QWheelEvent*>(pEvent);
+        const QPoint angleDelta = pWheelEvent->angleDelta();
+        switch (m_enmOrientation)
+        {
+            /* Scroll viewport horizontally: */
+            case Qt::Horizontal:
+            {
+                if (angleDelta.x() > 0)
+                    m_pScrollBar->setValue(m_pScrollBar->value() - m_pScrollBar->wheelStep());
+                else
+                    m_pScrollBar->setValue(m_pScrollBar->value() + m_pScrollBar->wheelStep());
+                break;
+            }
+            /* Scroll viewport vertically: */
+            case Qt::Vertical:
+            {
+                if (angleDelta.y() > 0)
+                    m_pScrollBar->setValue(m_pScrollBar->value() - m_pScrollBar->wheelStep());
+                else
+                    m_pScrollBar->setValue(m_pScrollBar->value() + m_pScrollBar->wheelStep());
+                break;
+            }
+        }
+    }
+
     /* Call to base-class: */
     return QIGraphicsWidget::eventFilter(pObject, pEvent);