C++ QLabel::setContentsMargins方法代码示例

    ConnectionBasicTab::ConnectionBasicTab(ConnectionSettings *settings) :
        _settings(settings)
    {
        QLabel *connectionDescriptionLabel = new QLabel(
            "Choose any connection name that will help you to identify this connection.");
        connectionDescriptionLabel->setWordWrap(true);
        connectionDescriptionLabel->setContentsMargins(0, -2, 0, 20);

        QLabel *serverDescriptionLabel = new QLabel(
            "Specify host and port of MongoDB server. Host can be either IP or domain name.");
        serverDescriptionLabel->setWordWrap(true);
        serverDescriptionLabel->setContentsMargins(0, -2, 0, 20);

        _connectionName = new QLineEdit(_settings->connectionName());
        _serverAddress = new QLineEdit(_settings->serverHost());
        _serverPort = new QLineEdit(QString::number(_settings->serverPort()));
        _serverPort->setFixedWidth(80);

        QGridLayout *connectionLayout = new QGridLayout;
        connectionLayout->addWidget(new QLabel("Name:"),      1, 0);
        connectionLayout->addWidget(_connectionName,         1, 1, 1, 3);
        connectionLayout->addWidget(connectionDescriptionLabel,               2, 1, 1, 3);
        connectionLayout->addWidget(serverDescriptionLabel, 4, 1, 1, 3);
        connectionLayout->addWidget(new QLabel("Address:"),    3, 0);
        connectionLayout->addWidget(_serverAddress,          3, 1);
        connectionLayout->addWidget(new QLabel(":"),      3, 2);
        connectionLayout->addWidget(_serverPort,             3, 3);
        connectionLayout->setAlignment(Qt::AlignTop);

        QVBoxLayout *mainLayout = new QVBoxLayout;
        mainLayout->addLayout(connectionLayout);
        setLayout(mainLayout);

        _connectionName->setFocus();
    }

    ConnectionBasicTab::ConnectionBasicTab(ConnectionSettings *settings) :
        _settings(settings)
    {
        QLabel *connectionDescriptionLabel = new QLabel(
            "Choose any connection name that will help you to identify this connection.");
        connectionDescriptionLabel->setWordWrap(true);
        connectionDescriptionLabel->setContentsMargins(0, -2, 0, 20);

        QLabel *serverDescriptionLabel = new QLabel(
            "Specify host and port of MongoDB server. Host can be either IP or domain name.");
        serverDescriptionLabel->setWordWrap(true);
        serverDescriptionLabel->setContentsMargins(0, -2, 0, 20);

        _connectionName = new QLineEdit(QtUtils::toQString(_settings->connectionName()));
        _serverAddress = new QLineEdit(QtUtils::toQString(_settings->serverHost()));
        _serverPort = new QLineEdit(QString::number(_settings->serverPort()));
        _serverPort->setFixedWidth(80);
        QRegExp rx("\\d+");//(0-65554)
        _serverPort->setValidator(new QRegExpValidator(rx, this));

        _sslSupport = new QCheckBox("SSL support");
        _sslSupport->setChecked(_settings->sslInfo()._sslSupport);

        _sslPEMKeyFile = new QLineEdit(QtUtils::toQString(_settings->sslInfo()._sslPEMKeyFile));
#ifdef Q_OS_WIN
        QRegExp pathx("([a-zA-Z]:)?([\\\\/][a-zA-Z0-9_.-]+)+[\\\\/]?");
#else
        QRegExp pathx("^\\/?([\\d\\w\\.]+)(/([\\d\\w\\.]+))*\\/?$");
#endif // Q_OS_WIN
        _sslPEMKeyFile->setValidator(new QRegExpValidator(pathx, this));

        _selectFileB = new QPushButton("...");
        _selectFileB->setFixedSize(20,20);       
        VERIFY(connect(_selectFileB, SIGNAL(clicked()), this, SLOT(setSslPEMKeyFile())));

        QGridLayout *connectionLayout = new QGridLayout;
        connectionLayout->addWidget(new QLabel("Name:"),          1, 0);
        connectionLayout->addWidget(_connectionName,              1, 1, 1, 3);
        connectionLayout->addWidget(connectionDescriptionLabel,   2, 1, 1, 3);
        connectionLayout->addWidget(serverDescriptionLabel,       4, 1, 1, 3);
        connectionLayout->addWidget(new QLabel("Address:"),       3, 0);
        connectionLayout->addWidget(_serverAddress,               3, 1);
        connectionLayout->addWidget(new QLabel(":"),              3, 2);
        connectionLayout->addWidget(_serverPort,                  3, 3);
        connectionLayout->setAlignment(Qt::AlignTop);
        connectionLayout->addWidget(_sslSupport,          5, 1);
        connectionLayout->addWidget(_selectFileB,          5, 2);
        connectionLayout->addWidget(_sslPEMKeyFile,          5, 3);

        QVBoxLayout *mainLayout = new QVBoxLayout;
        mainLayout->addLayout(connectionLayout);
        setLayout(mainLayout);

        sslSupportStateChange(_sslSupport->checkState());
        VERIFY(connect(_sslSupport,SIGNAL(stateChanged(int)),this,SLOT(sslSupportStateChange(int))));

        _connectionName->setFocus();
    }

AboutDialog::AboutDialog(QWidget* parent)
		: QDialog(parent)
{
	setWindowTitle(tr("About Dolphin"));
	setAttribute(Qt::WA_DeleteOnClose);

	QString text = QStringLiteral("");
	QString small = QStringLiteral("<p style='margin-top:0px; margin-bottom:0px; font-size:9pt;'>");
	QString medium = QStringLiteral("<p style='margin-top:15px; font-size:11pt;'>");

	text.append(QStringLiteral("<p style='font-size:50pt; font-weight:400; margin-bottom:0px;'>") +
		tr("Dolphin") + QStringLiteral("</p>"));
	text.append(QStringLiteral("<p style='font-size:18pt; margin-top:0px;'>%1</p>")
		.arg(QString::fromUtf8(scm_desc_str)));

	text.append(small + tr("Branch: ") + QString::fromUtf8(scm_branch_str) + QStringLiteral("</p>"));
	text.append(small + tr("Revision: ") + QString::fromUtf8(scm_rev_git_str) + QStringLiteral("</p>"));
	text.append(small + tr("Compiled: ") + QStringLiteral(__DATE__ " " __TIME__ "</p>"));

	text.append(medium + tr("Check for updates: ") +
		QStringLiteral("<a href='https://dolphin-emu.org/download'>dolphin-emu.org/download</a></p>"));
	text.append(medium + tr("Dolphin is a free and open-source GameCube and Wii emulator.") + QStringLiteral("</p>"));
	text.append(medium + tr("This software should not be used to play games you do not legally own.") + QStringLiteral("</p>"));
	text.append(medium + QStringLiteral(
		"<a href='https://github.com/dolphin-emu/dolphin/blob/master/license.txt'>%1</a> | "
		"<a href='https://github.com/dolphin-emu/dolphin/graphs/contributors'>%2</a> | "
		"<a href='https://forums.dolphin-emu.org/'>%3</a></p>"
	).arg(tr("Licence")).arg(tr("Authors")).arg(tr("Support")));

	QLabel* text_label = new QLabel(text);
	text_label->setTextInteractionFlags(Qt::TextBrowserInteraction);
	text_label->setOpenExternalLinks(true);

	QLabel* copyright = new QLabel(tr(
		"© 2003-%1 Dolphin Team. “GameCube” and “Wii” are"
		" trademarks of Nintendo. Dolphin is not affiliated with Nintendo in any way."
	).arg(QStringLiteral(__DATE__).right(4)));

	QLabel* logo = new QLabel();
	logo->setPixmap(Resources::GetMisc(Resources::LOGO_LARGE));
	logo->setContentsMargins(30, 0, 30, 0);

	QVBoxLayout* main_layout = new QVBoxLayout;
	QHBoxLayout* h_layout = new QHBoxLayout;

	setLayout(main_layout);
	main_layout->addLayout(h_layout);
	main_layout->addWidget(copyright);
	copyright->setAlignment(Qt::AlignCenter);
	copyright->setContentsMargins(0, 15, 0, 0);

	h_layout->setAlignment(Qt::AlignLeft);
	h_layout->addWidget(logo);
	h_layout->addWidget(text_label);
}

void BitcoinGUI::createToolBars()
{
    QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
    toolbar->setObjectName("toolbar");
    addToolBar(Qt::LeftToolBarArea,toolbar);
    toolbar->setOrientation(Qt::Vertical);
    toolbar->setFixedWidth(205);
    toolbar->setMovable( false );
    toolbar->setToolButtonStyle(Qt::ToolButtonTextOnly);

    QLabel* header = new QLabel();
    header->setMinimumSize(156,156);
    header->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
    header->setPixmap(QPixmap(":/images/header"));
    header->setMaximumSize(156,156);
    header->setContentsMargins(26,26,0,0);
    header->setScaledContents(true);
    toolbar->addWidget(header);

	QLabel *l = new QLabel(this);
    l->setPixmap(QPixmap(":/images/spacer"));
    toolbar->addWidget(l);
    toolbar->addAction(overviewAction);
    toolbar->addAction(sendCoinsAction);
    toolbar->addAction(receiveCoinsAction);
    toolbar->addAction(historyAction);
    toolbar->addAction(addressBookAction);
    toolbar->setStyleSheet("#toolbar {background: transparent; text-align: center; color: black;padding-right: 30px;} QToolBar QToolButton:hover {background-color: transparent;} QToolBar QToolButton:selected {background-color: transparent;} QToolBar QToolButton:checked {background-color: transparent;} QToolBar QToolButton:pressed {background-color: transparent;} QToolBar QToolButton {font-family:Steps; font-size:15px; font-weight: bold; min-width:125px;max-width:125px; min-height:25px;max-height:25px; color: white; text-align: left; }");

}

void ForgetPwdVerifyPage::initializeWidget()
{
    //提示信息页面操作
    hintMsgPage = new HintMsgPage(this);
    hintMsgPage->hide();
    connect(hintMsgPage, SIGNAL(submitClicked(bool)), this, SLOT(on_hintMsgPage(bool)));

    //导航栏
    QString strTitle = tr("验 证");
    QString strLeftBtn = tr("取消");
    QPixmap leftArrowsPixmap(ImagePath::NAVIGATION_LEFT_ARROWS);
    navigationBar = new NavigationBar(this);
    navigationBar->setTitleText(strTitle);
    navigationBar->setLeftText(strLeftBtn);
    navigationBar->setLeftPixMap(leftArrowsPixmap);
    connect(navigationBar, SIGNAL(leftClicked()), this, SLOT(on_btnPrePage_clicked()));

    QHBoxLayout* pHLTop = new QHBoxLayout();
    pHLTop->addWidget(navigationBar);
    pHLTop->setSpacing(0);
    pHLTop->setMargin(0);
    this->setTopbarLayout(pHLTop);

    //验证部分
    QLabel* lblMsgHint = new QLabel(this);
    lblMsgHint->setText(tr("已发送验证码到您的邮箱"));
    lblMsgHint->setFixedHeight(this->screenHeight()*0.05);
    lblMsgHint->setAlignment(Qt::AlignLeft);
    lblMsgHint->setContentsMargins(this->screenWidth()*0.02, 0, this->screenWidth()*0.02, 0);
    lblMsgHint->setStyleSheet("color:rgb(122,123,128); font:16px;");

    editValidate = new QLineEdit(this);
    editValidate->setFixedHeight(this->screenHeight()*0.08);
    editValidate->setPlaceholderText(tr("输入6位验证码"));
    editValidate->setStyleSheet(SheetStyle::FORGETPWD_VALIDATION_LINEEDIT);
    editValidate->setTextMargins(this->screenWidth()*0.02, 0, this->screenWidth()*0.02, 0);

    QVBoxLayout* vbInfoLayout = new QVBoxLayout;
    vbInfoLayout->addWidget(lblMsgHint);
    vbInfoLayout->addWidget(editValidate);
    vbInfoLayout->setAlignment(Qt::AlignCenter);
    vbInfoLayout->setSpacing(0);
    vbInfoLayout->setMargin(0);

    btnNextStep = new QPushButton(tr("下一步"), this);
    btnNextStep->setFixedHeight(this->screenHeight()*0.074);
    btnNextStep->setStyleSheet(SheetStyle::QPUSHBUTTON);
    connect(btnNextStep, SIGNAL(clicked()), this, SLOT(on_btnNextStep_clicked()));

    QVBoxLayout* vbLayout = new QVBoxLayout;
    vbLayout->addLayout(vbInfoLayout);
    vbLayout->addSpacing(this->screenHeight()*0.03);
    vbLayout->addWidget(btnNextStep);
    vbLayout->setAlignment(Qt::AlignTop);
    vbLayout->addStretch(0);
    vbLayout->addSpacing(0);
    vbLayout->setContentsMargins(this->screenWidth()*0.054,this->screenHeight()*0.026,this->screenWidth()*0.054,0);
    this->setBodyPartLayout(vbLayout);
}

    ConnectionSslTab::ConnectionSslTab(ConnectionSettings *settings) :
        _settings(settings)
    {
        _sslPemFilePath = new QLineEdit(QtUtils::toQString(_settings->sslInfo()._sslPEMKeyFile));

/*
// Commented because of this:
// https://github.com/paralect/robomongo/issues/391

#ifdef Q_OS_WIN
        QRegExp pathx("([a-zA-Z]:)?([\\\\/][a-zA-Z0-9_.-]+)+[\\\\/]?");
#else
        QRegExp pathx("^\\/?([\\d\\w\\.]+)(/([\\d\\w\\.]+))*\\/?$");
#endif // Q_OS_WIN

        _sslPemFilePath->setValidator(new QRegExpValidator(pathx, this));
*/
        _sslSupport = new QCheckBox("Use SSL protocol");
        _sslSupport->setStyleSheet("margin-bottom: 7px");
        _sslSupport->setChecked(_settings->sslInfo()._sslSupport);

        _selectPemFileButton = new QPushButton("...");
        _selectPemFileButton->setFixedSize(20, 20);
        VERIFY(connect(_selectPemFileButton, SIGNAL(clicked()), this, SLOT(setSslPEMKeyFile())));

        _sslPemLabel = new QLabel("SSL Certificate:");

        _sslPemDescriptionLabel = new QLabel(
            "<nobr>SSL Certificate and SSL Private Key combined into one file (*.pem)");
        _sslPemDescriptionLabel->setWordWrap(true);
        _sslPemDescriptionLabel->setAlignment(Qt::AlignTop);
        _sslPemDescriptionLabel->setContentsMargins(0, -2, 0, 0);
        _sslPemDescriptionLabel->setMinimumSize(_sslPemDescriptionLabel->sizeHint());

        QLabel *sslNoteLabel = new QLabel(
            "<b>Note:</b> Support for Certificate Authority (CA) file and "
            "encrypted SSL Private Keys are planned for future releases.");
        sslNoteLabel->setWordWrap(true);
        sslNoteLabel->setAlignment(Qt::AlignTop);
        sslNoteLabel->setContentsMargins(0, 20, 0, 0);

        QGridLayout *_authLayout = new QGridLayout;
        _authLayout->setAlignment(Qt::AlignTop);
        _authLayout->addWidget(_sslSupport,              0, 0, 1, 3);
        _authLayout->addWidget(_sslPemLabel,             1, 0);
        _authLayout->addWidget(_sslPemFilePath,          1, 1, 1, 1);
        _authLayout->addWidget(_selectPemFileButton,     1, 2, 1, 1);
        _authLayout->addWidget(_sslPemDescriptionLabel,  2, 1, 1, 2);
        _authLayout->addWidget(sslNoteLabel,             3, 0, 1, 4);

        QVBoxLayout *mainLayout = new QVBoxLayout;
        mainLayout->addLayout(_authLayout);
        setLayout(mainLayout);

        sslSupportStateChange(_sslSupport->checkState());
        VERIFY(connect(_sslSupport, SIGNAL(stateChanged(int)), this, SLOT(sslSupportStateChange(int))));
    }

Change::Change(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Change)
{
    pathToRes = new QString("/home/midv/Projects/TrajectoryBuilder/Trajectory/resourses/");
    ui->setupUi(this);
    QHBoxLayout *generalLay = new QHBoxLayout(this);
    generalLay->setContentsMargins(0,0,0,0);
    QLabel *label = new QLabel();
    label->setFixedSize(this->size());
    label->setContentsMargins(0,0,0,0);
    label->setStyleSheet("QLabel{border:4px solid #00aa00; border-radius:10px}");
    generalLay->addWidget(label);
    QHBoxLayout *lay = new QHBoxLayout();
    label->setLayout(lay);
    lay->setAlignment(Qt::AlignCenter);
    lay->setSpacing(0);
    lay->setContentsMargins(5,0,0,0);
    QtSvgButton *button1 = new QtSvgButton();
    button1->setLockalSkin(*pathToRes,"Line");
    connect(button1,SIGNAL(clicked()),SLOT(pressButton1()));
    button1->setFixedSize(110,110);
    lay->addWidget(button1);
    QtSvgButton *button2 = new QtSvgButton();
    button2->setLockalSkin(*pathToRes,"Aссel");
    connect(button2,SIGNAL(clicked()),SLOT(pressButton2()));
    button2->setFixedSize(110,110);
    lay->addWidget(button2);
    QtSvgButton *button3 = new QtSvgButton();
    button3->setLockalSkin(*pathToRes,"ArcV");
    connect(button3,SIGNAL(clicked()),SLOT(pressButton3()));
    button3->setFixedSize(110,110);
    lay->addWidget(button3);
    QtSvgButton *button4 = new QtSvgButton();
    button4->setLockalSkin(*pathToRes,"ArcH");
    connect(button4,SIGNAL(clicked()),SLOT(pressButton4()));
    button4->setFixedSize(110,110);
    lay->addWidget(button4);
    QtSvgButton *button5 = new QtSvgButton();
    button5->setLockalSkin(*pathToRes,"ZmeyV");
    connect(button5,SIGNAL(clicked()),SLOT(pressButton5()));
    button5->setFixedSize(110,110);
    lay->addWidget(button5);
    QtSvgButton *button6 = new QtSvgButton();
    button6->setLockalSkin(*pathToRes,"ZmeyH");
    connect(button6,SIGNAL(clicked()),SLOT(pressButton6()));
    button6->setFixedSize(110,110);
    lay->addWidget(button6);
    QtSvgButton *button7 = new QtSvgButton();
    button7->setLockalSkin(*pathToRes,"Remove");
    connect(button7,SIGNAL(clicked()),SLOT(pressButton7()));
    button7->setFixedSize(110,110);
    lay->addWidget(button7);
}

void
PanelsWidget::addPanel( PanelData *panel )
{
    const int headerRow = layout_->rowCount();

    // icon:
    if (!panel->icon().isNull()) {
        QLabel *iconLabel = new QLabel(root_);
        iconLabel->setPixmap( panel->icon().pixmap( Constants::ICON_SIZE, Constants::ICON_SIZE ) );
        iconLabel->setContentsMargins( 0, Constants::ABOVE_HEADING_MARGIN, 0, 0 );
        layout_->addWidget( iconLabel, headerRow, 0, /*rowSpan=*/3, /*colSpan=*/1, Qt::AlignTop | Qt::AlignHCenter );
    }

    // name:
    QLabel *nameLabel = new QLabel(root_);
    nameLabel->setText( panel->displayName() );
    QPalette palette = nameLabel->palette();
    for (int i = QPalette::Active; i < QPalette::NColorGroups; ++i ) {
        QColor foregroundColor = palette.color(QPalette::ColorGroup(i), QPalette::Foreground);
        foregroundColor.setAlpha(110);
        palette.setBrush(QPalette::ColorGroup(i), QPalette::Foreground, foregroundColor);
    }
    nameLabel->setPalette(palette);
    nameLabel->setContentsMargins(0, Constants::ABOVE_HEADING_MARGIN, 0, 0);
    QFont f = nameLabel->font();
    f.setBold(true);
    f.setPointSizeF(f.pointSizeF() * 1.6);
    nameLabel->setFont(f);
    layout_->addWidget(nameLabel, headerRow, 1, 1, 1, Qt::AlignVCenter | Qt::AlignLeft);

    // line:
    const int lineRow(headerRow + 1);
    QWidget *line = new OnePixelBlackLine(root_);
    layout_->addWidget(line, lineRow, 1, 1, -1, Qt::AlignTop);

    // add the widget:
    const int widgetRow(lineRow + 1);
    addPanelWidget(panel, widgetRow);
    layout_->setRowStretch( lineRow + 1, 100 );
}

QgsWelcomePage::QgsWelcomePage( bool skipVersionCheck, QWidget *parent )
  : QWidget( parent )
{
  QgsSettings settings;

  QVBoxLayout *mainLayout = new QVBoxLayout;
  mainLayout->setMargin( 0 );
  mainLayout->setContentsMargins( 0, 0, 0, 0 );
  setLayout( mainLayout );

  QHBoxLayout *layout = new QHBoxLayout();
  layout->setMargin( 0 );

  mainLayout->addLayout( layout );

  QWidget *recentProjectsContainer = new QWidget;
  recentProjectsContainer->setLayout( new QVBoxLayout );
  recentProjectsContainer->layout()->setContentsMargins( 0, 0, 0, 0 );
  recentProjectsContainer->layout()->setMargin( 0 );

  int titleSize = QApplication::fontMetrics().height() * 1.4;
  QLabel *recentProjectsTitle = new QLabel( QStringLiteral( "<div style='font-size:%1px;font-weight:bold'>%2</div>" ).arg( titleSize ).arg( tr( "Recent Projects" ) ) );
  recentProjectsTitle->setContentsMargins( 10, 3, 0, 0 );

  recentProjectsContainer->layout()->addWidget( recentProjectsTitle );

  mRecentProjectsListView = new QListView();
  mRecentProjectsListView->setResizeMode( QListView::Adjust );
  mRecentProjectsListView->setContextMenuPolicy( Qt::CustomContextMenu );
  connect( mRecentProjectsListView, &QListView::customContextMenuRequested, this, &QgsWelcomePage::showContextMenuForProjects );

  mModel = new QgsWelcomePageItemsModel( mRecentProjectsListView );
  mRecentProjectsListView->setModel( mModel );
  mRecentProjectsListView->setItemDelegate( new QgsWelcomePageItemDelegate( mRecentProjectsListView ) );

  recentProjectsContainer->layout()->addWidget( mRecentProjectsListView );

  layout->addWidget( recentProjectsContainer );

  mVersionInformation = new QLabel;
  mainLayout->addWidget( mVersionInformation );
  mVersionInformation->setVisible( false );

  mVersionInfo = new QgsVersionInfo();
  if ( !QgsApplication::isRunningFromBuildDir() && settings.value( QStringLiteral( "qgis/checkVersion" ), true ).toBool() && !skipVersionCheck )
  {
    connect( mVersionInfo, &QgsVersionInfo::versionInfoAvailable, this, &QgsWelcomePage::versionInfoReceived );
    mVersionInfo->checkVersion();
  }

  connect( mRecentProjectsListView, &QAbstractItemView::activated, this, &QgsWelcomePage::itemActivated );
}

//
// Version page
//
VersionPage::VersionPage(Context *context) : context(context)
{
    QLabel *text;
    text=new QLabel(this);
    text->setContentsMargins(0,0,0,0);
    text->setText(GcCrashDialog::versionHTML());
    QVBoxLayout *mainLayout = new QVBoxLayout;
    mainLayout->setSpacing(0);
    mainLayout->setContentsMargins(0,0,0,0);
    mainLayout->addWidget(text);

    setLayout(mainLayout);
}

//
// Version page
//
VersionPage::VersionPage(MainWindow *main, QDir home) : main(main), home(home)
{
    QLabel *text;
    text=new QLabel(this);
    text->setContentsMargins(0,0,0,0);
    text->setText(GcCrashDialog::versionHTML());
    QVBoxLayout *mainLayout = new QVBoxLayout;
    mainLayout->setSpacing(0);
    mainLayout->setContentsMargins(0,0,0,0);
    mainLayout->addWidget(text);

    setLayout(mainLayout);
}

QHBoxLayout *FAttentionSettingsWidget::buildHBox(QString labeltext, QWidget *widget)
{
	QHBoxLayout *hbox = new QHBoxLayout;
	QLabel *label = new QLabel(labeltext, this);
	label->setObjectName("settingslabel");
	label->setContentsMargins(0, 0, 0, 0);
	hbox->addWidget(label);
	hbox->addStretch();
	if(widget) {
		hbox->addWidget(widget);
	}
	return hbox;
}

void LogListWidget::appendLine(const QString &line)
{
  QListWidgetItem *item = new QListWidgetItem;
  // We need to use QLabel here to support rich text
  QLabel *lbl = new QLabel(line);
  lbl->setContentsMargins(4, 2, 4, 2);
  item->setSizeHint(lbl->sizeHint());
  insertItem(0, item);
  setItemWidget(item, lbl);
  const int nbLines = count();
  // Limit log size
  if (nbLines > m_maxLines)
    delete takeItem(nbLines - 1);
}

FilesystemWidget::FilesystemWidget(QWidget *parent)
{
    setParent(parent);

    // Create the toolbar
    QToolBar *fsToolbar = new QToolBar();
    fsToolbar->setMovable(false);

    goUpAction = new QAction(IconFactory::fromTheme("go-up"), tr("Go up"), this);
    connect(goUpAction, SIGNAL(triggered()), this, SLOT(goUp()));
    fsToolbar->addAction(goUpAction);

    goHomeAction = new QAction(IconFactory::fromTheme("go-home"), tr("Go to the home folder"), this);
    connect(goHomeAction, SIGNAL(triggered()), this, SLOT(goHome()));
    fsToolbar->addAction(goHomeAction);

    // TODO: use placeholderText in Qt 4.7.
    filterEdit = new QLineEdit();
    QLabel* filterLabel = new QLabel(tr("Filter:"));
    filterLabel->setContentsMargins(5, 0, 5, 0);
    fsToolbar->addSeparator();
    fsToolbar->addWidget(filterLabel);
    fsToolbar->addWidget(filterEdit);
    connect(filterEdit, SIGNAL(textChanged(QString)), this, SLOT(setNameFilter(QString)));

    // Create the filesystem view
    fsWidgetModel = new QFileSystemModel();
    fsWidgetModel->setNameFilterDisables(false);
    fsWidgetModel->setFilter(QDir::AllDirs|QDir::Files|QDir::NoDotAndDotDot);
    fsListView = new QListView();
    fsListView->setSelectionMode(QAbstractItemView::ExtendedSelection);
    fsListView->setDragEnabled(true);
    fsListView->setModel(fsWidgetModel);

    // We shall use this to filter available file extensions from Phonon
    //fsWidgetModel->setFilter(getPhononExtensions());

    connect(fsWidgetModel, SIGNAL(rootPathChanged(QString)), this, SLOT(pathChanged()));
    connect(fsListView, SIGNAL(doubleClicked(QModelIndex)), this, SLOT(doubleClickAt(QModelIndex)));

    // Create a new horizontal box
    QVBoxLayout *vlayout = new QVBoxLayout();
    vlayout->addWidget(fsToolbar);
    vlayout->addWidget(fsListView);
    goHome();

    this->setLayout(vlayout);
}

KSaneDeviceDialog::KSaneDeviceDialog(QWidget *parent)
    : KDialog(parent)
{

    setButtons(KDialog::User1 | KDialog::Ok | KDialog::Cancel);
    setButtonText(User1, i18n("Reload devices list"));
    
    m_btnGroup = new QButtonGroup(this);

    m_btnBox = new QGroupBox;
    QVBoxLayout *layout = new QVBoxLayout;
    m_btnContainer = new QWidget;
    m_btnLayout = new QVBoxLayout(m_btnContainer);
    QScrollArea *area = new QScrollArea;
    
    m_btnBox->setLayout(layout);

    QLabel *explanation =
      new QLabel(i18n("<html>The SANE (Scanner Access Now Easy) system could not find any device.<br>"
                      "Check that the scanner is plugged in and turned on<br>"
                      "or check your systems scanner setup.<br>"
                      "For details about SANE see the "
                      "<a href='http://www.sane-project.org/'>SANE homepage</a>.</html>"));
    explanation->setOpenExternalLinks(true);
    int l,t,r,b;
    layout->getContentsMargins(&l, &t, &r, &b);
    explanation->setContentsMargins(l, t, r, b);

    layout->addWidget(explanation);
    m_btnBox->adjustSize();  // make sure to see the complete explanation text
    layout->addWidget(area);
    layout->setContentsMargins(0,0,0,0);

    area->setWidgetResizable(true);
    area->setFrameShape(QFrame::NoFrame);
    area->setWidget(m_btnContainer);

    setMainWidget(m_btnBox);
    setMinimumHeight(200);
    m_findDevThread = FindSaneDevicesThread::getInstance();

    connect(m_findDevThread, SIGNAL(finished()), this, SLOT(updateDevicesList()));
    connect(this, SIGNAL(user1Clicked()),        this, SLOT(reloadDevicesList()));

    reloadDevicesList();
}