MVC - ModelView with QTreeView and QDirModel.MVC - ModelView with QListView and QStringListModel.QtConcurrent QProgressDialog with QFutureWatcher.Customizing Items by inheriting QGraphicsItem.Tool Tips in HTML Style and with Resource Images.MainWindow and ImageViewer using Designer B.MainWindow and ImageViewer using Designer A.The implementation file, qfilesystemmodeldialog.cpp: Void on_treeView_clicked(const QModelIndex &index ) Ui->listView->setRootIndex(fileModel->setRootPath(mPath)) QString mPath = dirModel->fileInfo(index).absoluteFilePath() Get the full path of the item that's user clicked on Void QFileSystemModelDialog::on_treeView_clicked(const QModelIndex &index ) Let's setup a slot for the TreeView by "Go to slot."->clicked(ModelIndex). We add similar line of code for files in the implementation file, qfilesystemmodeldialog.cpp:įileModel->setFilter(QDir::NoDotAndDotDot | It shows the TreeView for directories successfully, and it looks like we're on track! Let's run the code to see what we've done. QFileSystemModelDialog::~QFileSystemModelDialog() QFileSystemModelDialog::QFileSystemModelDialog(QWidget *parent) :ĭirModel->setFilter(QDir::NoDotAndDotDot | Move on to the implementation file, qfilesystemmodeldialog.cpp: We make two models because we need to filter them separately.Ĭlass QFileSystemModelDialog : public QDialogĮxplicit QFileSystemModelDialog(QWidget *parent = 0) Let's make two models in qfilesystemmodeldialog.h: one for files and the other for directories. Since we finished layout, now is the time for coding. In this tutorial, we'll use Model-Based TreeView for folders on the left side and ListView for files on the right side: However, it's worth investigating their approach of using "delegate" with their Model/View pattern. The advantage of having a delegate in this framework is that it allows the way items of data are rendered and edited to be customized. To allow flexible handling of user input, we introduce the concept of the delegate. This separation makes it possible to display the same data in several different views, and to implement new types of views, without changing the underlying data structures. This still separates the way that data is stored from the way that it is presented to the user, but provides a simpler framework based on the same principles. If the view and the controller objects are combined, the result is the model/view architecture. In this example, we'll use Qt Gui application with QDialog:Īs we discussed in other ModelView tutorials, Qt's MVC may not be the same as the conventional MVC.
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