Qt 4.6: window.cpp Example File (itemviews/fetchmore/window.cpp)

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# window.cpp Example File
itemviews/fetchmore/window.cpp

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     #include <QtGui>
     #include "filelistmodel.h"
     #include "window.h"

     Window::Window(QWidget *parent)
         : QWidget(parent)
     {
         FileListModel *model = new FileListModel(this);
         model->setDirPath(QLibraryInfo::location(QLibraryInfo::PrefixPath));

         QLabel *label = new QLabel(tr("&Directory:"));
         QLineEdit *lineEdit = new QLineEdit;
         label->setBuddy(lineEdit);

         QListView *view = new QListView;
         view->setModel(model);

         logViewer = new QTextBrowser;
         logViewer->setSizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred));

         connect(lineEdit, SIGNAL(textChanged(const QString &)),
                 model, SLOT(setDirPath(const QString &)));
         connect(lineEdit, SIGNAL(textChanged(const QString &)),
                 logViewer, SLOT(clear()));
         connect(model, SIGNAL(numberPopulated(int)),
                 this, SLOT(updateLog(int)));

         QGridLayout *layout = new QGridLayout;
         layout->addWidget(label, 0, 0);
         layout->addWidget(lineEdit, 0, 1);
         layout->addWidget(view, 1, 0, 1, 2);
         layout->addWidget(logViewer, 2, 0, 1, 2);

         setLayout(layout);
         setWindowTitle(tr("Fetch More Example"));
     }

     void Window::updateLog(int number)
     {
         logViewer->append(tr("%1 items added.").arg(number));
     }