I'm trying to have a list of special kind of widgets, with different background colors for each one and the alternatingRowColor flag doesn't seem to work

I'm using a QTableWidget and setting the widgets for each cell. Using the 4.1.4 version of QT

have some code, that should do it, but doesn't work

Qt Code: 
  1. #include <QtGui/QApplication>
  2. #include <QtGui/QLabel>
  3. #include <QtGui/QTableWidget>
  4.  
  5. int main(int argc, char* argv[])
  6. {
  7.     QApplication app(argc, argv);
  8.     QTableWidget table(5,1);
  9.     table.setAlternatingRowColors(true);
  10.     table.show();
  11.     QPalette palette;
  12.     QWidget *widget;
  13.  
  14.     widget = new QLabel("bla", &table);
  15.     palette = widget->palette();
  16.     palette.setColor(QPalette::Base, Qt::green);
  17.     palette.setColor(QPalette::AlternateBase, Qt::red);
  18.     widget->setPalette(palette);
  19.     table.setCellWidget(0, 0, widget);
  20.  
  21.     widget = new QLabel("ble", &table);
  22.     palette = widget->palette();
  23.     palette.setColor(QPalette::Base, Qt::green);
  24.     palette.setColor(QPalette::AlternateBase, Qt::red);
  25.     widget->setPalette(palette);
  26.     table.setCellWidget(1, 0, widget);
  27.  
  28.     widget = new QLabel("bli", &table);
  29.     palette = widget->palette();
  30.     palette.setColor(QPalette::Base, Qt::green);
  31.     palette.setColor(QPalette::AlternateBase, Qt::red);
  32.     widget->setPalette(palette);
  33.     table.setCellWidget(2, 0, widget);
  34.  
  35.     widget = new QLabel("blo", &table);
  36.     palette = widget->palette();
  37.     palette.setColor(QPalette::Base, Qt::green);
  38.     palette.setColor(QPalette::AlternateBase, Qt::red);
  39.     widget->setPalette(palette);
  40.     table.setCellWidget(3, 0, widget);
  41.  
  42.     widget = new QLabel("blu", &table);
  43.     palette = widget->palette();
  44.     palette.setColor(QPalette::Base, Qt::green);
  45.     palette.setColor(QPalette::AlternateBase, Qt::red);
  46.     widget->setPalette(palette);
  47.     table.setCellWidget(4, 0, widget);
  48.  
  49.     return app.exec();
  50. }
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Any ideas??