C++ (Cpp) QListWidget::setFocus示例

void MainWindow::focusAssistant()
{
    QListWidget* widget = qobject_cast<QListWidget*>(m_assistantToolBox->currentWidget());
    if (widget) {
        widget->setFocus();
        if (widget->selectedItems().count() == 0) {
            widget->setCurrentItem(widget->itemAt(0, 0));
        }
    }
}

示例#2

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void tst_QMenu::widgetActionFocus()
{
    //test if the focus is correctly handled with a QWidgetAction
    QMenu m;
    QListWidget *l = new QListWidget(&m);
    for (int i = 1; i<3 ; i++)
        l->addItem(QString("item%1").arg(i));
    QWidgetAction *wa = new QWidgetAction(&m);
    wa->setDefaultWidget(l);
    m.addAction(wa);
    m.setActiveAction(wa);
    l->setFocus(); //to ensure it has primarily the focus
    QAction *menuitem1=m.addAction("menuitem1");
    QAction *menuitem2=m.addAction("menuitem2");

    m.popup(QPoint());

    QVERIFY(m.isVisible());
    QVERIFY(l->hasFocus());
    QVERIFY(l->currentItem());
    QCOMPARE(l->currentItem()->text(), QString("item1"));

    QTest::keyClick(QApplication::focusWidget(), Qt::Key_Down);
    QVERIFY(l->currentItem());
    QCOMPARE(l->currentItem()->text(), QString("item2"));

    QTest::keyClick(QApplication::focusWidget(), Qt::Key_Down);
    QVERIFY(m.hasFocus());
    QCOMPARE(m.activeAction(), menuitem1);

    QTest::keyClick(QApplication::focusWidget(), Qt::Key_Down);
    QVERIFY(m.hasFocus());
    QCOMPARE(m.activeAction(), menuitem2);

    QTest::keyClick(QApplication::focusWidget(), Qt::Key_Up);
    QVERIFY(m.hasFocus());
    QCOMPARE(m.activeAction(), menuitem1);

    QTest::keyClick(QApplication::focusWidget(), Qt::Key_Up);
    QVERIFY(l->hasFocus());
    QCOMPARE(m.activeAction(), (QAction *)wa);
}

示例#3

显示文件

文件： utilities.cpp 项目： akhuettel/kdepim-noakonadi

// **** keyboard selection dialog *********************************************
int KNHelper::selectDialog(QWidget *parent, const QString &caption, const QStringList &options, int initialValue)
{
  KDialog *dlg = new KDialog( parent );
  dlg->setCaption( caption );
  dlg->setButtons( KDialog::Ok|KDialog::Cancel );
  dlg->setDefaultButton( KDialog::Ok );

  QFrame *page = new QFrame( dlg );
  dlg->setMainWidget( page );
  QHBoxLayout *pageL = new QHBoxLayout(page);
  pageL->setSpacing(5);
  pageL->setMargin(8);

  QListWidget *list = new QListWidget( page );
  pageL->addWidget(list);

  QString s;
  for ( QStringList::ConstIterator it = options.begin(); it != options.end(); ++it ) {
    s = (*it);
    // remove accelerators
    s.replace( QRegExp( "&" ), "" ); // krazy:exclude=doublequote_chars
    list->addItem( s );
  }

  list->setCurrentRow( initialValue );
  list->setFocus();
  QObject::connect( list, SIGNAL( itemActivated( QListWidgetItem* ) ), dlg, SLOT( accept() ) );
  restoreWindowSize("selectBox", dlg, QSize(247,174));

  int ret;
  if (dlg->exec())
    ret = list->currentRow();
  else
    ret = -1;

  saveWindowSize("selectBox", dlg->size());
  delete dlg;
  return ret;
}