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Thread: QDirModel, QTreeView, and QListView

  1. #1

    Default QDirModel, QTreeView, and QListView

    Hi, I am trying to create a tree view and a list view. The tree view should display only directories, and the list view should display only files. Clicking on a directory in the tree view should change the index of the list view. I tried this, having separate QDirModels, one each for the tree and list views:
    Qt Code:
    1. QDirModel dirModel;
    2. QDirModel fileModel;
    3. QTreeView tree(&window);
    4. QListView list(&window);
    5. tree.setModel(&dirModel);
    6. list.setModel(&fileModel);
    7. QObject::connect(&tree, SIGNAL(clicked(const QModelIndex &)),
    8. &list, SLOT(setRootIndex(const QModelIndex &)));
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    but the signals don't connect properly, ie, clicking on the tree view makes the list view go blank.
    I also tried this, having a single QDirModel for both views:
    Qt Code:
    1. QDirModel model;
    2. QTreeView tree(&window);
    3. QListView list(&window);
    4. model.setFilter(QDir::Dirs | QDir::NoDotAndDotDot);
    5. tree.setModel(&model);
    6. list.setModel(&model);
    7. QObject::connect(&tree, SIGNAL(clicked()),
    8. &list, SLOT(setCurrentIndex()));
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    The signal and slot here works, clicking the tree view changes the list view index, however only directories are displayed in both views.
    Hints? Thanks!

  2. #2
    Join Date
    Jun 2007
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    Qt products
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    Default Re: QDirModel, QTreeView, and QListView

    the slot setRootIndex aspects the QModelIndex of the same view. but u are passing the modelIndex of tree into the list. so the setRootIndex treat it as an invalid index.

  3. #3

    Default Re: QDirModel, QTreeView, and QListView

    So it's not possible to use separate QDirModels for tree and list and connect them? Can I use an intermediary modelIndex?
    Or if I use a single QDirModel for both of them can I have separate filters for each view?

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