Changeset 51602 in vbox for trunk/src/VBox/Frontends/VirtualBox

Timestamp:

Jun 11, 2014 11:30:54 AM (11 years ago)

Author:

vboxsync

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

94334

Message:

FE/Qt: Runtime UI: save visible region when resizing.

Location:

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

Files:

• UIFrameBuffer.cpp (modified) (3 diffs)
• UIFrameBuffer.h (modified) (1 diff)

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

@@ -225 +225 @@
     m_fUpdatesAllowed = false;
 
+    /* While updates are disabled, visible region will be saved:  */
+    m_pendingSyncVisibleRegion = QRegion();
+
     /* Acquire new pending bitmap: */
     m_pendingSourceBitmap = 0;
@@ -393 +396 @@
     }
 
-    /* We are directly updating synchronous visible-region: */
-    m_syncVisibleRegion = region;
-    /* And send async-signal to update asynchronous one: */
-    LogRel2(("UIFrameBuffer::SetVisibleRegion: Rectangle count=%lu, Sending to async-handler..\n",
-             (unsigned long)uCount));
-    emit sigSetVisibleRegion(region);
+    if (m_fUpdatesAllowed)
+    {
+        /* We are directly updating synchronous visible-region: */
+        m_syncVisibleRegion = region;
+        /* And send async-signal to update asynchronous one: */
+        LogRel2(("UIFrameBuffer::SetVisibleRegion: Rectangle count=%lu, Sending to async-handler..\n",
+                 (unsigned long)uCount));
+        emit sigSetVisibleRegion(region);
+    }
+    else
+    {
+        /* Save the region. */
+        m_pendingSyncVisibleRegion = region;
+        LogRel2(("UIFrameBuffer::SetVisibleRegion: Rectangle count=%lu, Saved..\n",
+                 (unsigned long)uCount));
+    }
 
     /* Unlock access to frame-buffer: */
@@ -575 +588 @@
     }
 
+    lock();
+
     /* Enable screen updates: */
-    lock();
     m_fUpdatesAllowed = true;
+
+    if (!m_pendingSyncVisibleRegion.isEmpty())
+    {
+        /* Directly update synchronous visible-region: */
+        m_syncVisibleRegion = m_pendingSyncVisibleRegion;
+        m_pendingSyncVisibleRegion = QRegion();
+
+        /* And send async-signal to update asynchronous one: */
+        LogRel2(("UIFrameBuffer::resizeEvent: Rectangle count=%lu, Sending to async-handler..\n",
+                 (unsigned long)m_syncVisibleRegion.rectCount()));
+        emit sigSetVisibleRegion(m_syncVisibleRegion);
+    }
+
     unlock();
 }

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

@@ -299 +299 @@
       * because NotifyUpdate doesn't take into account these changes. */
     QRegion m_asyncVisibleRegion;
+    /** When the framebuffer is being resized, visible region is saved here.
+      * The saved region is applied when updates are enabled again. */
+    QRegion m_pendingSyncVisibleRegion;
     /** @} */