0

Well I have been working on a Qt app where I need to display Filesystem using QFilesystemModel.I have been able to display it as expected.

Code:

QFileSystemModel *model = new QFileSystemModel;
model->setRootPath(QDir::currentPath())
tree->setModel(model);

This displays all drives inside QTreeView. But we all know by default, the color of the folders present inside each drive is yellow.

This is what i wanna change. Is there a way in Qt, where one can change the color of folder to "Blue"???

Kai
  • 38,985
  • 14
  • 88
  • 103
Gojira
  • 171
  • 4
  • 14

2 Answers2

1

You can customize your QTreeView via a qt delegate. But if it is just for an icon, I think you can reimplement:

class MyQFileSystemModel : public QFileSystemModel {
public:
    QVariant data( const QModelIndex& index, int role ) const {

        if( role == Qt::DecorationRole ) { 
            return QVariant(QIcon(QPixmap("icon.png")));
        }

        return QFileSystemModel::data(index, role);
    }
};

To learn about delegate, I suggest you study the examples: Spin box delegate

EDIT: you have to reimplement the method data from a QFileSystemModel, you must inherit from QFileSystemModel.

Then you do as before:

MyQFileSystemModel* model = new MyQFileSystemModel;
model->setRootPath(QDir::currentPath())
tree->setModel(model);
Kirell
  • 9,228
  • 4
  • 46
  • 61
  • Yeah I just figured out i have to do that. I would appreciate if Can you help me out with it please :) – Gojira Dec 11 '12 at 10:45
  • Well I reconstructed my app according to what you said above..... I also put the Resource file and the path inside QPixMap. But when i run the app, folders are no more visible in the drivers inside QTreeView. I also found the `data()` is getting called n number of times. Whats the issue? :) – Gojira Dec 11 '12 at 11:35
  • I can not compile it right now, I edited my answer it should work better. Data is called N times this is normal, it is called for each role for each item in your treeview. – Kirell Dec 11 '12 at 11:39
  • Thanks buddyyyy... I made it work :) I cannot upvote since I have reputation less than 15 :( – Gojira Dec 11 '12 at 11:52
0

I would assume that the workaround is to use your own fileIcon.

Qt uses whatever the default icon is for the current platform. I'm guessing you're on Windows.

This question provides some clues on how to implement.

(I just started learning Qt myself, BTW!)

Community
  • 1
  • 1
Ian Atkin
  • 6,302
  • 2
  • 17
  • 24
  • Thanks for the reply brother. yes I am using windows itself. I havent used FileIcon till now. Can you elaborate a bit more on it say via a sample code please :) – Gojira Dec 11 '12 at 09:29