Qt 5.9 | Qt Widgets | Fetch More Example | window.cpp Example File

Qt 5.9.9 Reference Documentation

# window.cpp Example File

itemviews/fetchmore/window.cpp

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      #include "filelistmodel.h"
      #include "window.h"

      #include <QtWidgets>

      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, &QLineEdit::textChanged,
                  model, &FileListModel::setDirPath);
          connect(lineEdit, &QLineEdit::textChanged,
                  logViewer, &QTextEdit::clear);
          connect(model, &FileListModel::numberPopulated,
                  this, &Window::updateLog);

          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));
      }