hey all,
i would like to add one icon to all items in qtreeview

i tried the following:
(listModel is my QDirModel)

Qt Code: 
  1. int role;
  2.         QIcon modelicon("/images/package.png");
  3.         modelicon.operator QVariant();
  4.         listModel->setData(listModel->index("/home/test/"),modelicon, role = Qt::DecorationRole);
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Qt Code: 
  1. int role;
  2.         listModel->setData(listModel->index("/home/test/"),QVariant(QIcon("/images/package.png")), role = Qt::DecorationRole);
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Qt Code: 
  1. listModel->setData(listModel->index("/home/test/"),QVariant(QIcon("/images/package.png")), Qt::DecorationRole);
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the program compiles and runs successfully but it doesnt add my icon in the items in QTreeView, it continues to show the default icon.