Changeset 75900 in vbox

Timestamp:

Dec 3, 2018 12:56:33 PM (6 years ago)

Author:

vboxsync

Message:

FE/Qt: bugref:9309: Windows host: Fixing clipping rectangle for HiDPI case (not the mouse capturing itself yet).

File:

• trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIMouseHandler.cpp (modified) (1 diff)

trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIMouseHandler.cpp

@@ -1238 +1238 @@
 
         /* Prepare clipping area: */
+        // WORKAROUND:
+        // Underlying ClipCursor call requires physical coordinates, not logical upscaled Qt stuff.
+        // But we will have to map to relative origin (to make logical=>physical conversion) first.
+        const double dDpr = gpDesktop->devicePixelRatio(m_windows.value(m_iMouseCaptureViewIndex));
+        const QRect screenGeometry = gpDesktop->screenGeometry(m_windows.value(m_iMouseCaptureViewIndex));
+        viewportRectangle.moveTo((viewportRectangle.topLeft() - screenGeometry.topLeft()) * dDpr + screenGeometry.topLeft());
+        viewportRectangle.setSize(viewportRectangle.size() * dDpr);
         RECT rect = { viewportRectangle.left() + 1, viewportRectangle.top() + 1, viewportRectangle.right(), viewportRectangle.bottom() };
         ::ClipCursor(&rect);