Hello forum,

I am instantiating property widgets and arranging them in a layout with the click event dynamically.

I hope that the attached screen-shot gives you the idea. As you can see that the layout is not working
properly. The label "DEF" and the line edit arrangement is not aligning well with rest of the other properties.

I am also attaching the corresponding code snippet so that you can provide me some useful hint to get around
this issue.

Qt Code: 
  1. void H3DNodePropertiesWidget::instantiateWidgets()
  2. {
  3.     setUpdatesEnabled(false);
  4.  
  5.     if(m_widgetState == NONE)
  6.     {
  7.         m_propertyWidget = new QWidget;
  8.  
  9.         QGridLayout *gridLayout = new QGridLayout(m_propertyWidget);
  10.         gridLayout->setContentsMargins(3,4,0,2);
  11.         gridLayout->setSpacing(2);
  12.         gridLayout->setColumnStretch(1,2);
  13.  
  14.  
  15.         m_mainLayout->addWidget(m_propertyWidget);
  16.  
  17.         setUpdatesEnabled(true);
  18.         updateState();
  19.         m_widgetFactory = 0;
  20.  
  21.         m_widgetState = ONLY_TF;
  22.  
  23.     }
  24.     //THIS FOLLOWING CONDITION IS THE RESPOONSIBLE FOR CREATING ALL THE WIDGETS 
  25.     // THAT CORRESPONDS TO THE ELLIPTICAL ITEM YOU SEE IN THE SCENE
  26.     else if(m_widgetState == ONLY_TF)
  27.     {
  28.         //!pull out the layout that has been created when the
  29.         //!widget instantiation state was = NONE
  30.         QGridLayout *gridLayout = dynamic_cast<QGridLayout*>(m_propertyWidget->layout());
  31.  
  32.         //!now get the properties of the nodes
  33.         QList<H3DProperty*> propertyList = m_h3dNode->getH3DNodeProperties();
  34.  
  35.  
  36.         //!create the widget for every property and put them in the vertical layout
  37.         int rows = 0;
  38.  
  39.  
  40.         /////////////////////////////////////////////////////////////////
  41.         //!The DEF label and the line edit is common to every elliptical graphical item 
  42.         //!add the DEF node editing capabilities here
  43.         QLabel *nodeDEFname = new QLabel(tr("DEF"));        
  44.  
  45.         QLineEdit *nodeDEFNameEdit = new QLineEdit(m_h3dNode->getNodeDEFName());
  46.  
  47.         //resize the widget
  48. //        nodeDEFNameEdit->resize(QSize(156,86).expandedTo(minimumSizeHint()));
  49.  
  50.         QSizePolicy sizePolicy(QSizePolicy::Preferred,QSizePolicy::Fixed);
  51.         sizePolicy.setHorizontalStretch(0);
  52.         sizePolicy.setVerticalStretch(0);
  53.  
  54.         sizePolicy.setHeightForWidth(nodeDEFname->sizePolicy().hasHeightForWidth());
  55.  
  56.         nodeDEFname->setSizePolicy(sizePolicy);
  57.  
  58.  
  59.         QHBoxLayout *horizontalLayout = new QHBoxLayout();
  60.  
  61.         horizontalLayout->addWidget(nodeDEFname);
  62.         horizontalLayout->addWidget(nodeDEFNameEdit);
  63.  
  64.         gridLayout->addLayout(horizontalLayout,rows,0,1,1);
  65.  
  66.  
  67.         rows++;
  68.         /////////////////////////////////////////////////////////////////
  69.  
  70.         //check first if the pointer is the valid one or not
  71.         if(!m_widgetFactory)
  72.         {
  73.             if(!Singleton<H3DPropertyWidgetFactory>::isInited())
  74.             {
  75.                 Singleton<H3DPropertyWidgetFactory>::init(new H3DPropertyWidgetFactory());
  76.  
  77.             }
  78.  
  79.             m_widgetFactory = Singleton<H3DPropertyWidgetFactory>::getPtr();
  80.         }
  81.  
  82.         //declare an iterator to browse through the property lists
  83.         QList<H3DProperty*>::iterator iter;
  84.  
  85.         for(iter = propertyList.begin(); iter != propertyList.end();++iter)
  86.         {
  87.  
  88.             H3DPropertyWidget *l_propertyWidget = dynamic_cast<H3DPropertyWidget*>((*iter)->createAndAddWidget(m_widgetFactory));
  89.  
  90.             if(l_propertyWidget != 0)
  91.             {
  92.                 m_widgets.push_back(l_propertyWidget);
  93.  
  94.                 connect(l_propertyWidget,SIGNAL(modified()),this,SLOT(propertyModified()));
  95.  
  96.                 QLabel *l_nameLabel = const_cast<QLabel*>(l_propertyWidget->getNameLabel());
  97.  
  98.                 if(l_nameLabel)
  99.                 {
  100.                     gridLayout->addWidget(l_nameLabel,rows,0,1,1);
  101.                     gridLayout->addWidget(l_propertyWidget,rows,1,1,1);
  102.                 }
  103. //                else
  104. //                {
  105. //                    gridLayout->addWidget(l_propertyWidget,rows,0,1,2);
  106. //                }
  107.             }
  108.  
  109.  
  110.             //!just increment the row value
  111.             ++rows;
  112.         }
  113.  
  114.         m_widgetFactory = 0;
  115.         setUpdatesEnabled(true);
  116.         updateState();
  117.  
  118.         m_widgetState = ALL;
  119.  
  120.  
  121.     }
  122.  
  123.     setUpdatesEnabled(true);
  124. }
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It has been quite a while that i am stuck with this issue and i am really looking forward to some hint.


Regards
Sajjad