QStackedWidgets and other Layouts does not display properly

[PstdEr]

following is my problem statement:

create a horizantal layout in display
add stackedwidget to this Hlayout
the stackedwidget contains imagesWidget and loadWidget
the imagesWidget is further divided into gridlayout which contains some icons
so on the stackedwidget i have a plain widget and a widget withe gridlayout

now , when i click on any icon of the gridlayout it should open loadwidget and on to that
my application should be visible(here i am just playing with colors instead of applications)
for this purpose i again divide grid layout into Horizantal layout and adding the apps widget.

i face two problems here:

1) my gridlayout icons on imagesWidget are coming properly but when i select them i can see
under those icons same icons are present( i dont understand how i got duplicate)

2) when i close my application i am following the steps mentioned in exitapp code:

but my background of the loadWidget is still retianed but with icons from imageWidget

unfortunately i cannot paste the connect calls because the loading is not handled by connect
but some external events from some other module.

below is list of steps i am following.


------------------------------------------

controlsLayout=new QHBoxLayout();
      display->setLayout(controlsLayout);
 
      imagesWidget = new QWidget;
      loadWidget = new QWidget;
 
      QGridLayout *imagesLayout=new QGridLayout();
 
      controlsLayout=new QHBoxLayout();
      display->setLayout(controlsLayout);
 
      imagesWidget = new QWidget;
      loadWidget = new QWidget;
 
      imagesWidget->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Preferred);
      imagesWidget->setLayout(imagesLayout);// setting a grid layout for imagesWidget
      imgstack = new QStackedWidget; // new stacked widget  for imagesWidget and loadwidget
      imgstack->addWidget(imagesWidget);
      imgstack->addWidget(loadWidget);
      qDebug("imgstack cnt = %d",imgstack->count());
 
      controlsLayout->addWidget(imgstack); // stacked widget to horizantal layout of of display
 
      appstack = new QStackedWidget; // new stacked widget for applications
      const char *colors[]={"background-color: white", 
                          "background-color: black",
                          "background-color: blue",
                          "background-color: green",
                          "background-color: yellow",
                          "background-color: red",
                          "background-color: pink",
                          "background-color: cyan",
                          "background-color: white"
                           }; // unique colors are given for each widget to identify
 
 
      for(int apno = 0;apno < 9;apno ++){
         	appwidgs[apno] = new QWidget;
          	appwidgs[apno]->setStyleSheet(colors[apno]);
	        appstack->addWidget(appwidgs[apno]);
      }

controlsLayout=new QHBoxLayout();
      display->setLayout(controlsLayout);

      imagesWidget = new QWidget;
      loadWidget = new QWidget;

      QGridLayout *imagesLayout=new QGridLayout();

      controlsLayout=new QHBoxLayout();
      display->setLayout(controlsLayout);

      imagesWidget = new QWidget;
      loadWidget = new QWidget;

      imagesWidget->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Preferred);
      imagesWidget->setLayout(imagesLayout);// setting a grid layout for imagesWidget
      imgstack = new QStackedWidget; // new stacked widget  for imagesWidget and loadwidget
      imgstack->addWidget(imagesWidget);
      imgstack->addWidget(loadWidget);
      qDebug("imgstack cnt = %d",imgstack->count());

      controlsLayout->addWidget(imgstack); // stacked widget to horizantal layout of of display

      appstack = new QStackedWidget; // new stacked widget for applications
      const char *colors[]={"background-color: white", 
                          "background-color: black",
                          "background-color: blue",
                          "background-color: green",
                          "background-color: yellow",
                          "background-color: red",
                          "background-color: pink",
                          "background-color: cyan",
                          "background-color: white"
                           }; // unique colors are given for each widget to identify


      for(int apno = 0;apno < 9;apno ++){
         	appwidgs[apno] = new QWidget;
          	appwidgs[apno]->setStyleSheet(colors[apno]);
	        appstack->addWidget(appwidgs[apno]);
      }

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--------------------------
upon click on any of the image the following will be performed.

imgstack->setCurrentIndex(1);
                //loadWidget->setStyleSheet("background-color: blue");
                qDebug("currindx=%d\n",imgstack->currentIndex());
 
               loadapp();

imgstack->setCurrentIndex(1);
                //loadWidget->setStyleSheet("background-color: blue");
                qDebug("currindx=%d\n",imgstack->currentIndex());

               loadapp();

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--------------------------
loadapp code:

QHBoxLayout *hl = new QHBoxLayout;
    loadWidget->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Preferred);
    loadWidget->setLayout(hl);
    hl->addWidget(appstack,0,0);
 
    qDebug("curr_apps =%d",appstack->currentIndex());
    appstack->setCurrentIndex(currpos);

QHBoxLayout *hl = new QHBoxLayout;
    loadWidget->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Preferred);
    loadWidget->setLayout(hl);
    hl->addWidget(appstack,0,0);

    qDebug("curr_apps =%d",appstack->currentIndex());
    appstack->setCurrentIndex(currpos);

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---------------------------------------

exitapp code:

appstack->removeWidget(appwidgs[currpos]);
    imgstack->removeWidget(loadWidget);
    imgstack->setCurrentWidget(imagesWidget);

appstack->removeWidget(appwidgs[currpos]);
    imgstack->removeWidget(loadWidget);
    imgstack->setCurrentWidget(imagesWidget);

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