tdeio: only create the internal guarded pointer for TDEIO::Job if it is really required. This fix avoid creation and destruction of unnecessary TQObjects and helps speeding up operations which requires lot of Jobs.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>

tdeio/tdeio/job.cpp

@@ -89,15 +89,23 @@ template class TQPtrList<TDEIO::Job>;
 class Job::JobPrivate
 {
 public:
-    JobPrivate() : m_autoErrorHandling( false ), m_autoWarningHandling( true ),
-                   m_interactive( true ), m_parentJob( 0L ), m_extraFlags(0),
-                   m_processedSize(0), m_userTimestamp(0)
+    JobPrivate() : m_autoErrorHandling(false), m_autoWarningHandling(true),
+                   m_interactive(true), m_errorParentWidgetGP(0), m_parentJob(0L),
+                   m_extraFlags(0), m_processedSize(0), m_userTimestamp(0)
                    {}
 
+    ~JobPrivate()
+    {
+      if (m_errorParentWidgetGP)
+      {
+        delete m_errorParentWidgetGP;
+      }
+    }
+
     bool m_autoErrorHandling;
     bool m_autoWarningHandling;
     bool m_interactive;
-    TQGuardedPtr<TQWidget> m_errorParentWidget;
+    TQGuardedPtr<TQWidget> *m_errorParentWidgetGP;
     // Maybe we could use the TQObject parent/child mechanism instead
     // (requires a new ctor, and moving the ctor code to some init()).
     Job* m_parentJob;
@@ -143,7 +151,9 @@ Job::~Job()
     delete m_speedTimer;
     delete d;
     if (kapp)
-        kapp->deref();
+    {
+      kapp->deref();
+    }
 }
 
 int& Job::extraFlags()
@@ -233,7 +243,7 @@ void Job::emitResult()
   if ( m_progressId ) // Did we get an ID from the observer ?
     Observer::self()->jobFinished( m_progressId );
   if ( m_error && d->m_interactive && d->m_autoErrorHandling )
-    showErrorDialog( d->m_errorParentWidget );
+    showErrorDialog( d->m_errorParentWidgetGP ? *d->m_errorParentWidgetGP : nullptr);
   emit result(this);
   deleteLater();
 }
@@ -322,8 +332,16 @@ void Job::showErrorDialog( TQWidget * parent )
 
 void Job::setAutoErrorHandlingEnabled( bool enable, TQWidget *parentWidget )
 {
+  if (d->m_errorParentWidgetGP && (TQWidget*)(*d->m_errorParentWidgetGP) != parentWidget)
+  {
+    delete d->m_errorParentWidgetGP;
+    d->m_errorParentWidgetGP = nullptr;
+  }
   d->m_autoErrorHandling = enable;
-  d->m_errorParentWidget = parentWidget;
+  if (enable && parentWidget && !d->m_errorParentWidgetGP)
+  {
+    d->m_errorParentWidgetGP = new TQGuardedPtr<TQWidget>(parentWidget);
+  }
 }
 
 bool Job::isAutoErrorHandlingEnabled() const