C++ KLineEdit::setClearButtonShown方法代码示例

void KNewFileMenuPrivate::executeRealFileOrDir(const KNewFileMenuSingleton::Entry& entry)
{
    // The template is not a desktop file
    // Show the small dialog for getting the destination filename
    QString text = entry.text;
    text.remove("..."); // the ... is fine for the menu item but not for the default filename
    text = text.trimmed(); // In some languages, there is a space in front of "...", see bug 268895
    m_strategy.m_src = entry.templatePath;

    KUrl defaultFile(m_popupFiles.first());
    defaultFile.addPath(KIO::encodeFileName(text));
    if (defaultFile.isLocalFile() && QFile::exists(defaultFile.toLocalFile()))
        text = KIO::RenameDialog::suggestName(m_popupFiles.first(), text);
    
    KDialog* fileDialog = new KDialog(m_parentWidget);
    fileDialog->setAttribute(Qt::WA_DeleteOnClose);
    fileDialog->setModal(q->isModal());
    fileDialog->setButtons(KDialog::Ok | KDialog::Cancel);
    
    QWidget* mainWidget = new QWidget(fileDialog);
    QVBoxLayout *layout = new QVBoxLayout(mainWidget);
    QLabel *label = new QLabel(entry.comment);

    // We don't set the text of lineEdit in its constructor because the clear button would not be shown then.
    // It seems that setClearButtonShown(true) must be called *before* the text is set to make it work.
    // TODO: should probably be investigated and fixed in KLineEdit.
    KLineEdit *lineEdit = new KLineEdit;
    lineEdit->setClearButtonShown(true);
    lineEdit->setText(text);

    _k_slotTextChanged(text);
    QObject::connect(lineEdit, SIGNAL(textChanged(const QString &)), q, SLOT(_k_slotTextChanged(const QString &)));
    
    layout->addWidget(label);
    layout->addWidget(lineEdit);
    
    fileDialog->setMainWidget(mainWidget);
    QObject::connect(fileDialog, SIGNAL(accepted()), q, SLOT(_k_slotRealFileOrDir()));
    QObject::connect(fileDialog, SIGNAL(rejected()), q, SLOT(_k_slotAbortDialog()));
 
    fileDialog->show();
    lineEdit->selectAll();
    lineEdit->setFocus();
}

DvbEpgDialog::DvbEpgDialog(DvbManager *manager_, QWidget *parent) : KDialog(parent),
	manager(manager_)
{
	setButtons(KDialog::Close);
	setCaption(i18nc("@title:window", "Program Guide"));

	QWidget *widget = new QWidget(this);
	QBoxLayout *mainLayout = new QHBoxLayout(widget);

	epgChannelTableModel = new DvbEpgChannelTableModel(this);
	epgChannelTableModel->setManager(manager);
	channelView = new QTreeView(widget);
	channelView->setMaximumWidth(30 * fontMetrics().averageCharWidth());
	channelView->setModel(epgChannelTableModel);
	channelView->setRootIsDecorated(false);
	channelView->setUniformRowHeights(true);
	connect(channelView->selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)),
		this, SLOT(channelActivated(QModelIndex)));
	mainLayout->addWidget(channelView);

	QBoxLayout *rightLayout = new QVBoxLayout();
	QBoxLayout *boxLayout = new QHBoxLayout();

	KAction *scheduleAction = new KAction(QIcon::fromTheme(QLatin1String("media-record")),
		i18nc("@action:inmenu tv show", "Record Show"), this);
	connect(scheduleAction, SIGNAL(triggered()), this, SLOT(scheduleProgram()));

	QPushButton *pushButton =
		new QPushButton(scheduleAction->icon(), scheduleAction->text(), widget);
	connect(pushButton, SIGNAL(clicked()), this, SLOT(scheduleProgram()));
	boxLayout->addWidget(pushButton);

	boxLayout->addWidget(new QLabel(i18nc("@label:textbox", "Search:"), widget));

	epgTableModel = new DvbEpgTableModel(this);
	epgTableModel->setEpgModel(manager->getEpgModel());
	connect(epgTableModel, SIGNAL(layoutChanged()), this, SLOT(checkEntry()));
	KLineEdit *lineEdit = new KLineEdit(widget);
	lineEdit->setClearButtonShown(true);
	connect(lineEdit, SIGNAL(textChanged(QString)),
		epgTableModel, SLOT(setContentFilter(QString)));
	boxLayout->addWidget(lineEdit);
	rightLayout->addLayout(boxLayout);

	epgView = new QTreeView(widget);
	epgView->addAction(scheduleAction);
	epgView->header()->setResizeMode(QHeaderView::ResizeToContents);
	epgView->setContextMenuPolicy(Qt::ActionsContextMenu);
	epgView->setMinimumWidth(75 * fontMetrics().averageCharWidth());
	epgView->setModel(epgTableModel);
	epgView->setRootIsDecorated(false);
	epgView->setUniformRowHeights(true);
	connect(epgView->selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)),
		this, SLOT(entryActivated(QModelIndex)));
	rightLayout->addWidget(epgView);

	contentLabel = new QLabel(widget);
	contentLabel->setAlignment(Qt::AlignLeft | Qt::AlignTop);
	contentLabel->setMargin(5);
	contentLabel->setWordWrap(true);

	QScrollArea *scrollArea = new QScrollArea(widget);
	scrollArea->setBackgroundRole(QPalette::Light);
	scrollArea->setMinimumHeight(12 * fontMetrics().height());
	scrollArea->setWidget(contentLabel);
	scrollArea->setWidgetResizable(true);
	rightLayout->addWidget(scrollArea);
	mainLayout->addLayout(rightLayout);
	setMainWidget(widget);
}

Interface::Interface(Plasma::RunnerManager *runnerManager, QWidget *parent)
    : KRunnerDialog(runnerManager, parent),
      m_delayedRun(false),
      m_running(false),
      m_queryRunning(false)
{
    m_resultData.processHoverEvents = true;
    m_resultData.mouseHovering = false;
    m_resultData.runnerManager = runnerManager;

    m_hideResultsTimer.setSingleShot(true);
    connect(&m_hideResultsTimer, SIGNAL(timeout()), this, SLOT(hideResultsArea()));

    m_reenableHoverEventsTimer.setSingleShot(true);
    m_reenableHoverEventsTimer.setInterval(50);
    connect(&m_reenableHoverEventsTimer, SIGNAL(timeout()), this, SLOT(reenableHoverEvents()));

    m_layout = new QVBoxLayout(this);
    m_layout->setMargin(0);

    m_buttonContainer = new QWidget(this);
    QHBoxLayout *bottomLayout = new QHBoxLayout(m_buttonContainer);
    bottomLayout->setMargin(0);

    m_configButton = new ToolButton(m_buttonContainer);
    m_configButton->setText(i18n("Settings"));
    m_configButton->setToolTip(i18n("Settings"));
    connect(m_configButton, SIGNAL(clicked()), SLOT(toggleConfigDialog()));
    bottomLayout->addWidget(m_configButton);

    //Set up the system activity button, using the krunner global action, showing the global shortcut in the tooltip
    m_activityButton = new ToolButton(m_buttonContainer);
    KRunnerApp *krunnerApp = KRunnerApp::self();
    QAction *showSystemActivityAction = krunnerApp->actionCollection()->action(QLatin1String( "Show System Activity" ));
    m_activityButton->setDefaultAction(showSystemActivityAction);

    updateSystemActivityToolTip();
    connect(showSystemActivityAction, SIGNAL(globalShortcutChanged(QKeySequence)), this, SLOT(updateSystemActivityToolTip()));
    connect(showSystemActivityAction, SIGNAL(triggered(bool)), this, SLOT(resetAndClose()));
    bottomLayout->addWidget(m_activityButton);

    m_singleRunnerIcon = new QLabel();
    bottomLayout->addWidget(m_singleRunnerIcon);
    m_singleRunnerDisplayName = new QLabel();
    bottomLayout->addWidget(m_singleRunnerDisplayName);

    m_helpButton = new ToolButton(m_buttonContainer);
    m_helpButton->setText(i18n("Help"));
    m_helpButton->setToolTip(i18n("Information on using this application"));
    connect(m_helpButton, SIGNAL(clicked(bool)), SLOT(showHelp()));
    connect(m_helpButton, SIGNAL(clicked(bool)), SLOT(configCompleted()));
    bottomLayout->addWidget(m_helpButton);

    QSpacerItem* closeButtonSpacer = new QSpacerItem(0,0,QSizePolicy::MinimumExpanding,QSizePolicy::Fixed);
    bottomLayout->addSpacerItem(closeButtonSpacer);

    m_closeButton = new ToolButton(m_buttonContainer);
    KGuiItem guiItem = KStandardGuiItem::close();
    m_closeButton->setText(guiItem.text());
    m_closeButton->setToolTip(guiItem.text().remove(QLatin1Char( '&' )));
    connect(m_closeButton, SIGNAL(clicked(bool)), SLOT(resetAndClose()));
    bottomLayout->addWidget(m_closeButton);

    m_layout->addWidget(m_buttonContainer);

    m_searchTerm = new KrunnerHistoryComboBox(false, this);

    KLineEdit *lineEdit = new KLineEdit(m_searchTerm);
    QAction *focusEdit = new QAction(this);
    focusEdit->setShortcut(Qt::Key_F6);

    connect(focusEdit, SIGNAL(triggered(bool)), this, SLOT(searchTermSetFocus()));
    addAction(focusEdit);

    // the order of these next few lines if very important.
    // QComboBox::setLineEdit sets the autoComplete flag on the lineedit,
    // and KComboBox::setAutoComplete resets the autocomplete mode! ugh!
    m_searchTerm->setLineEdit(lineEdit);

    m_completion = new KCompletion();
    lineEdit->setCompletionObject(m_completion);
    lineEdit->setCompletionMode(static_cast<KGlobalSettings::Completion>(KRunnerSettings::queryTextCompletionMode()));
    lineEdit->setClearButtonShown(true);
    QStringList pastQueryItems = KRunnerSettings::pastQueries();
    m_searchTerm->setHistoryItems(pastQueryItems);
    m_completion->insertItems(pastQueryItems);
    bottomLayout->insertWidget(4, m_searchTerm, 10);

    m_singleRunnerSearchTerm = new KLineEdit(this);
    bottomLayout->insertWidget(4, m_singleRunnerSearchTerm, 10 );

    //kDebug() << "size:" << m_resultsView->size() << m_resultsView->minimumSize();
    m_resultsScene = new ResultScene(&m_resultData, runnerManager, m_searchTerm, this);
    m_resultsView = new ResultsView(m_resultsScene, &m_resultData, this);
    m_layout->addWidget(m_resultsView);

    connect(m_resultsScene, SIGNAL(viewableHeightChanged()), this, SLOT(fitWindow()));
    connect(m_resultsScene, SIGNAL(matchCountChanged(int)), this, SLOT(matchCountChanged(int)));
    connect(m_resultsScene, SIGNAL(itemActivated(ResultItem*)), this, SLOT(run(ResultItem*)));

//.........这里部分代码省略.........