Changeset 51132 in vbox for trunk/src/VBox/Frontends/VirtualBox

Timestamp:

Apr 24, 2014 11:21:23 AM (11 years ago)

Author:

vboxsync

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

93439

Message:

FE/Qt: Runtime UI: Frame-buffer interface: Support for 'backing scale buffer' attribute.

Location:

trunk/src/VBox/Frontends/VirtualBox/src/runtime

Files:

• UIFrameBuffer.cpp (modified) (2 diffs)
• UIFrameBuffer.h (modified) (2 diffs)

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

@@ -49 +49 @@
     , m_iRefCnt(0)
 #endif /* Q_OS_WIN */
+    , m_dBackingScaleFactor(1.0)
 {
     /* Assign mahine-view: */
@@ -570 +571 @@
     if (m_pMachineView)
         prepareConnections();
+}
+
+void UIFrameBuffer::setBackingScaleFactor(double dBackingScaleFactor)
+{
+    /* Make sure 'backing scale factor' changed: */
+    if (m_dBackingScaleFactor == dBackingScaleFactor)
+        return;
+
+    /* Update 'backing scale factor': */
+    m_dBackingScaleFactor = dBackingScaleFactor;
 }
 

trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIFrameBuffer.h

@@ -209 +209 @@
     virtual void setView(UIMachineView * pView);
 
+    /** Return backing scale factor used by HiDPI frame-buffer. */
+    double backingScaleFactor() const { return m_dBackingScaleFactor; }
+    /** Define backing scale factor used by HiDPI frame-buffer. */
+    void setBackingScaleFactor(double dBackingScaleFactor);
+
 protected:
 
@@ -242 +247 @@
     long m_iRefCnt;
 #endif /* Q_OS_WIN */
+
+    /** Holds backing scale factor used by HiDPI frame-buffer. */
+    double m_dBackingScaleFactor;
 };