Call Yield() to unblock the main thread when refreshing.

Also, we don't seem to need this solar mutex locking and checking for
needs repaint flag here anymore, and not having these make the streaming
much faster esp on Windows.

Change-Id: I6e8ae82e5d986492ac576d28f11e2afffe954bc2

1 files changed, 2 insertions, 9 deletions

diff --git a/sc/source/ui/docshell/datastream.cxx b/sc/source/ui/docshell/datastream.cxx
index 493b9224bbfb..a06354eeaec2 100644
--- a/sc/source/ui/docshell/datastream.cxx
+++ b/sc/source/ui/docshell/datastream.cxx
@@ -65,15 +65,11 @@ private:
     {
         while (!mbTerminate)
         {
-            // wait for a small amount of time, so that
-            // painting methods have a chance to be called.
-            // And also to make UI more responsive.
-            TimeValue const aTime = {0, 100000};
             maStart.wait();
             maStart.reset();
             if (!mbTerminate)
                 while (mpDataStream->ImportData())
-                    wait(aTime);
+                    ;
         };
     }
 };
@@ -352,6 +348,7 @@ void DataStream::SetRefreshOnEmptyLine( bool bVal )
 void DataStream::Refresh()
 {
     // Hard recalc will repaint the grid area.
+    Application::Yield();
     mpDocShell->DoHardRecalc(true);
     mpDocShell->SetDocumentModified(true);
 
@@ -513,14 +510,10 @@ void DataStream::Text2Doc() {}
 
 bool DataStream::ImportData()
 {
-    SolarMutexGuard aGuard;
     if (!mbValuesInLine)
         // We no longer support this mode. To be deleted later.
         return false;
 
-    if (ScDocShell::GetViewData()->GetViewShell()->NeedsRepaint())
-        return mbRunning;
-
     Text2Doc();
     return mbRunning;
 }