more feedback when filtering

svn path=/trunk/KDE/kdepim/; revision=483599

kmcommands.cpp

@@ -1475,6 +1475,7 @@ KMCommand::Result KMFilterActionCommand::execute()
     QString statusMsg = i18n("Filtering message %1 of %2");
     statusMsg = statusMsg.arg( ++msgCount ).arg( msgList.count() );
     KPIM::BroadcastStatus::instance()->setStatusMsg( statusMsg );
+    KApplication::kApplication()->processEvents( QEventLoop::ExcludeUserInputEvents, 50 );
     msg->setTransferInProgress(false);
 
     int filterResult = kmkernel->filterMgr()->process(msg, mFilter);

kmcommands.h

@@ -547,6 +547,9 @@ private:
   bool mToggle;
 };
 
+
+/* This command is used to create a filter based on the user'S
+    decision, e.g. filter by From header */
 class KDE_EXPORT KMFilterCommand : public KMCommand
 {
   Q_OBJECT
@@ -562,6 +565,8 @@ private:
 };
 
 
+/* This command is used to apply a single filter (AKA ad-hoc filter)
+    to a set of messages */
 class KDE_EXPORT KMFilterActionCommand : public KMCommand
 {
   Q_OBJECT

kmheaders.cpp

@@ -1340,7 +1340,12 @@ void KMHeaders::applyFiltersOnMsg()
     CREATE_TIMER(filter);
     START_TIMER(filter);
 
+    int msgCount = 0;
     for (KMMsgBase* msgBase=msgList->first(); msgBase; msgBase=msgList->next()) {
+      QString statusMsg = i18n("Filtering message %1 of %2");
+      statusMsg = statusMsg.arg( ++msgCount ).arg( msgList->count() );
+      KPIM::BroadcastStatus::instance()->setStatusMsg( statusMsg );
+      KApplication::kApplication()->processEvents( QEventLoop::ExcludeUserInputEvents, 50 );
       int idx = msgBase->parent()->find(msgBase);
       assert(idx != -1);
       KMMessage * msg = msgBase->parent()->getMsg(idx);