The mainwidget could be deleted before the qpeapplication will be destructed or

the event loop will be left.
Use a QGuardedPtr to not save widget coordinates on a not anymore existing
mainwidget

1 files changed, 4 insertions, 1 deletions

diff --git a/library/qpeapplication.cpp b/library/qpeapplication.cpp
index 2bd7cbe..953f9d0 100644
--- a/library/qpeapplication.cpp
+++ b/library/qpeapplication.cpp
@@ -146,49 +146,49 @@ public:
     bool notbusysent  : 1;
     bool preloaded    : 1;
     bool forceshow    : 1;
     bool nomaximize   : 1;
     bool keep_running : 1;
     bool qcopQok      : 1;
 
     QCString fontFamily;
     int fontSize;
     int smallIconSize;
     int bigIconSize;
 
     QString appName;
     struct QCopRec
     {
         QCopRec( const QCString &ch, const QCString &msg,
                  const QByteArray &d ) :
                 channel( ch ), message( msg ), data( d )
         { }
 
         QCString channel;
         QCString message;
         QByteArray data;
     };
-    QWidget* qpe_main_widget;
+    QGuardedPtr<QWidget> qpe_main_widget;
         QGuardedPtr<QWidget> lastraised;
     QQueue<QCopRec> qcopq;
         QString styleName;
     QString decorationName;
 
     void enqueueQCop( const QCString &ch, const QCString &msg,
                       const QByteArray &data )
     {
         qcopq.enqueue( new QCopRec( ch, msg, data ) );
     }
     void sendQCopQ()
     {
             if (!qcopQok )
                 return;
 
         QCopRec * r;
 
            while((r=qcopq.dequeue())) {
                // remove from queue before sending...
                // event loop can come around again before getting
                // back from sendLocally
 #ifndef QT_NO_COP
                QCopChannel::sendLocally( r->channel, r->message, r->data );
 #endif
@@ -298,48 +298,51 @@ public:
     if ( wHeight > maxY ) {
         s.setHeight( maxY - (w->frameGeometry().height() - w->geometry().height() ) );
         wHeight = maxY;
     }
 
     // any smaller than this and the maximize/close/help buttons will be overlapping
     if ( wWidth < 80 || wHeight < 60 )
         return FALSE;
 
     if ( p.x() < 0 )
         p.setX(0);
     if ( p.y() < 0 )
         p.setY(0);
 
     if ( p.x() + wWidth > maxX )
         p.setX( maxX - wWidth );
     if ( p.y() + wHeight > maxY )
         p.setY( maxY - wHeight );
 
     return TRUE;
     }
 
     static void store_widget_rect(QWidget *w, QString &app)
     {
+    if( !w )
+        return;
+
     // 350 is the trigger in qwsdefaultdecoration for providing a resize button
     if ( qApp->desktop()->width() <= 350 )
         return;
     // we use these to map the offset of geometry and pos.  ( we can only use normalGeometry to
     // get the non-maximized version, so we have to do it the hard way )
     int offsetX = w->x() - w->geometry().left();
     int offsetY = w->y() - w->geometry().top();
 
     QRect r;
     if ( w->isMaximized() )
         r = ( (HackWidget *) w)->normalGeometry();
     else
         r = w->geometry();
 
     // Stores the window placement as pos(), size()  (due to the offset mapping)
     Config cfg( "qpe" );
     cfg.setGroup("ApplicationPositions");
     QString s;
     s.sprintf("%d,%d,%d,%d,%d", r.left() + offsetX, r.top() + offsetY, r.width(), r.height(), w->isMaximized() );
     cfg.writeEntry( app, s );
     }
 
     static bool setWidgetCaptionFromAppName( QWidget* /*mw*/, const QString& /*appName*/, const QString& /*appsPath*/ )
     {