C++ QListWidget::setFixedWidth方法代码示例

void MainWindow::createStackedWidget()
{
    // List of all items in the left navigation bar
    QListWidget* lw = new QListWidget(this);
    lw->setFixedWidth(100);
    lw->setSelectionMode(QAbstractItemView::SingleSelection);
    QListWidgetItem* connectionItem = new QListWidgetItem;
    connectionItem->setText("Connexion");
    lw->insertItem(0,connectionItem);
    QListWidgetItem* curriculumItem = new QListWidgetItem;
    curriculumItem->setText("Mon parcours");
    lw->insertItem(1,curriculumItem);
    QListWidgetItem* expectationsItem = new QListWidgetItem;
    expectationsItem->setText("Prévisions");
    lw->insertItem(2,expectationsItem);
    QListWidgetItem* catalogItem = new QListWidgetItem;
    catalogItem->setText("Catalogue Uvs");
    lw->insertItem(3,catalogItem);
    QListWidgetItem* adminItem = new QListWidgetItem;
    adminItem->setText("Gestion Uvs");
    lw->insertItem(4,adminItem);

    // Create the pages
    admin_ = new Admin;
    catalog_ = new Catalog;
    curriculum_ = new Curriculum;
    expectations_ = new Expectations;
    connection_ = new Connection;

    // Link the pages with the vertical navigation bar
    navigationStackedWidget_ = new QStackedWidget;
    navigationStackedWidget_->addWidget(connection_);
    navigationStackedWidget_->addWidget(curriculum_);
    navigationStackedWidget_->addWidget(expectations_);
    navigationStackedWidget_->addWidget(catalog_);
    navigationStackedWidget_->addWidget(admin_);

    QHBoxLayout* mainLayout = new QHBoxLayout;
    mainLayout->addWidget(lw);
    mainLayout->addWidget(navigationStackedWidget_);

    QWidget* cw = new QWidget;
    cw->setLayout(mainLayout);
    setCentralWidget(cw);

    curriculum_->setEnabled(false);
    expectations_->setEnabled(false);

    QObject::connect(lw,SIGNAL(currentRowChanged(int)),this,SLOT(setTag(int)));
    QObject::connect(connection_,SIGNAL(connected()),expectations_,SLOT(updateExpComboBox()));
    QObject::connect(connection_,SIGNAL(connected()),curriculum_,SLOT(generationView()));
    QObject::connect(connection_,SIGNAL(connected()),this,SLOT(afterConnection()));
}

AboutPlugins::AboutPlugins( Config *_config, QWidget* parent, Qt::WFlags f )
    : KDialog( parent, f ),
    config( _config ),
    currentPlugin( 0 )
{
    setCaption( i18n("About plugins") );
    setWindowIcon( KIcon("preferences-plugin") );
    setButtons( KDialog::Close );
    setButtonFocus( KDialog::Close );

    QWidget *widget = new QWidget( this );
    setMainWidget( widget );
    QHBoxLayout *box = new QHBoxLayout( widget );

    QVBoxLayout *pluginListBox = new QVBoxLayout( widget );
    box->addLayout( pluginListBox );

    QLabel *installedPlugins = new QLabel( i18n("Installed plugins:"), this );
    pluginListBox->addWidget( installedPlugins );

    QListWidget *pluginsList = new QListWidget( this );
    pluginListBox->addWidget( pluginsList );
    connect( pluginsList, SIGNAL(currentTextChanged(const QString&)), this, SLOT(currentPluginChanged(const QString&)) );

    QStringList pluginNames;
    QList<CodecPlugin*> codecPlugins = config->pluginLoader()->getAllCodecPlugins();
    for( int i=0; i<codecPlugins.count(); i++ )
    {
        pluginNames += codecPlugins.at(i)->name();
    }
    pluginNames.sort();
    pluginsList->addItems( pluginNames );

    pluginNames.clear();
    QList<FilterPlugin*> filterPlugins = config->pluginLoader()->getAllFilterPlugins();
    for( int i=0; i<filterPlugins.count(); i++ )
    {
        pluginNames += filterPlugins.at(i)->name();
    }
    pluginNames.sort();
    pluginsList->addItems( pluginNames );

    pluginNames.clear();
    QList<ReplayGainPlugin*> replaygainPlugins = config->pluginLoader()->getAllReplayGainPlugins();
    for( int i=0; i<replaygainPlugins.count(); i++ )
    {
        pluginNames += replaygainPlugins.at(i)->name();
    }
    pluginNames.sort();
    pluginsList->addItems( pluginNames );

    pluginNames.clear();
    QList<RipperPlugin*> ripperPlugins = config->pluginLoader()->getAllRipperPlugins();
    for( int i=0; i<ripperPlugins.count(); i++ )
    {
        pluginNames += ripperPlugins.at(i)->name();
    }
    pluginNames.sort();
    pluginsList->addItems( pluginNames );

    pluginsList->setFixedWidth( 180 );

    box->addSpacing( 10 );

    QVBoxLayout *pluginInfoBox = new QVBoxLayout( widget );
    box->addLayout( pluginInfoBox );

    aboutPluginLabel = new QLabel( this );
    aboutPluginLabel->setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Preferred );
    aboutPluginLabel->setWordWrap( true );
    aboutPluginLabel->setTextFormat( Qt::RichText );
    pluginInfoBox->addWidget( aboutPluginLabel );
    connect( aboutPluginLabel, SIGNAL(linkActivated(const QString&)), this, SLOT(showProblemInfo(const QString&)) );

    pluginInfoBox->addStretch();

    QHBoxLayout *configurePluginBox = new QHBoxLayout( widget );
    pluginInfoBox->addLayout( configurePluginBox );
    configurePlugin = new KPushButton( KIcon("configure"), "", widget );
    configurePlugin->hide();
    configurePluginBox->addWidget( configurePlugin );
    configurePluginBox->addStretch();
    connect( configurePlugin, SIGNAL(clicked()), this, SLOT(configurePluginClicked()) );

    pluginsList->setCurrentRow(0);
    QListWidgetItem *currentItem = pluginsList->currentItem();
    if( currentItem )
    {
        currentPluginChanged( currentItem->text() );
    }

    setInitialSize( QSize(500,300) );
    KSharedConfig::Ptr conf = KGlobal::config();
    KConfigGroup group = conf->group( "AboutPlugins" );
    restoreDialogSize( group );
}

SettingsDialog::SettingsDialog(ownCloudGui *gui, QWidget *parent) :
    QDialog(parent),
    _ui(new Ui::SettingsDialog)
{
    setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
    _ui->setupUi(this);
    setObjectName("Settings"); // required as group for saveGeometry call

    setWindowTitle(tr("%1").arg(Theme::instance()->appNameGUI()));

    _accountSettings = new AccountSettings(this);
    addAccount(tr("Account"), _accountSettings);

    QIcon protocolIcon(QLatin1String(":/mirall/resources/activity.png"));
    QListWidgetItem *protocol= new QListWidgetItem(protocolIcon, tr("Activity"), _ui->labelWidget);
    protocol->setSizeHint(QSize(0, 32));
    _ui->labelWidget->addItem(protocol);
    _protocolWidget = new ProtocolWidget;
    _protocolIdx = _ui->stack->addWidget(_protocolWidget);

    QIcon generalIcon(QLatin1String(":/mirall/resources/settings.png"));
    QListWidgetItem *general = new QListWidgetItem(generalIcon, tr("General"), _ui->labelWidget);
    general->setSizeHint(QSize(0, 32));
    _ui->labelWidget->addItem(general);
    GeneralSettings *generalSettings = new GeneralSettings;
    _ui->stack->addWidget(generalSettings);

    QIcon networkIcon(QLatin1String(":/mirall/resources/network.png"));
    QListWidgetItem *network = new QListWidgetItem(networkIcon, tr("Network"), _ui->labelWidget);
    network->setSizeHint(QSize(0, 32));
    _ui->labelWidget->addItem(network);
    NetworkSettings *networkSettings = new NetworkSettings;
    _ui->stack->addWidget(networkSettings);

    connect( _accountSettings, SIGNAL(folderChanged()), gui, SLOT(slotFoldersChanged()));
    connect( _accountSettings, SIGNAL(accountIconChanged(QIcon)), SLOT(slotUpdateAccountIcon(QIcon)));
    connect( _accountSettings, SIGNAL(openFolderAlias(const QString&)),
             gui, SLOT(slotFolderOpenAction(QString)));

    connect( ProgressDispatcher::instance(), SIGNAL(progressInfo(QString, Progress::Info)),
             _accountSettings, SLOT(slotSetProgress(QString, Progress::Info)) );

    _ui->labelWidget->setCurrentRow(_ui->labelWidget->row(_accountItem));

    connect(_ui->labelWidget, SIGNAL(currentRowChanged(int)),
            _ui->stack, SLOT(setCurrentIndex(int)));

    QPushButton *closeButton = _ui->buttonBox->button(QDialogButtonBox::Close);
    connect(closeButton, SIGNAL(clicked()), SLOT(accept()));

    QAction *showLogWindow = new QAction(this);
    showLogWindow->setShortcut(QKeySequence("F12"));
    connect(showLogWindow, SIGNAL(triggered()), gui, SLOT(slotToggleLogBrowser()));
    addAction(showLogWindow);

    int iconSize = 32;
    QListWidget *listWidget = _ui->labelWidget;
    int spacing = 20;
    // reverse at least ~8 characters
    int effectiveWidth = fontMetrics().averageCharWidth() * 8 + iconSize + spacing;
    // less than ~16 characters, elide otherwise
    int maxWidth = fontMetrics().averageCharWidth() * 16 + iconSize + spacing;
    for (int i = 0; i < listWidget->count(); i++) {
        QListWidgetItem *item = listWidget->item(i);
        QFontMetrics fm(item->font());
        int curWidth = fm.width(item->text()) + iconSize + spacing;
        effectiveWidth = qMax(curWidth, effectiveWidth);
        if (curWidth > maxWidth) item->setToolTip(item->text());
    }
    effectiveWidth = qMin(effectiveWidth, maxWidth);
    listWidget->setFixedWidth(effectiveWidth);

    MirallConfigFile cfg;
    cfg.restoreGeometry(this);
}

QWidget *ConfigDialog::centerWidget()
{
/*
	m_pagesTabWidget = new QTabWidget;
	for (int i = 0; i < m_pageWidgets.size(); ++i)
		m_pagesTabWidget->addTab(m_pageWidgets.at(i), m_pageTitles.at(i));
	return m_pagesTabWidget;
*/
	// create list
	QListWidget *pagesListWidget = new QListWidget;
	pagesListWidget->setViewMode(QListView::IconMode);
	pagesListWidget->setMovement(QListView::Static);
	pagesListWidget->setFlow(QListView::TopToBottom);
	pagesListWidget->setWordWrap(true);
	pagesListWidget->setUniformItemSizes(true);
	pagesListWidget->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred);

	// add items to list
	QFontMetrics fm(qApp->font());
	int iconWidth = 0;
	for (int i = 0; i < m_pagesListWidgetItems.size(); ++i)
		iconWidth = qMax(iconWidth, fm.boundingRect(0, 0, 0, 0, Qt::AlignCenter, m_pagesListWidgetItems.at(i)->text()).width());
	iconWidth += 20;
	const int iconHeight = fm.height() + 42;
	for (int i = 0; i < m_pagesListWidgetItems.size(); ++i)
	{
		m_pagesListWidgetItems.at(i)->setSizeHint(QSize(iconWidth, iconHeight));
		pagesListWidget->addItem(m_pagesListWidgetItems.at(i));
	}
	pagesListWidget->setFixedWidth(m_pagesListWidgetItems.at(0)->sizeHint().width() + 6);

	// create title
	QFrame *titleFrame = new QFrame(this);
//	titleFrame->setAutoFillBackground(true);
//	titleFrame->setFrameShape(QFrame::StyledPanel);
	titleFrame->setFrameShape(QFrame::Box);
//	titleFrame->setFrameShadow(QFrame::Plain);
//	titleFrame->setBackgroundRole(QPalette::Base);
	m_pagesTitleLabel = new QLabel(titleFrame);
	m_pagesTitleLabel->setStyleSheet("QLabel { font-weight: bold; }");
	QGridLayout *titleLayout = new QGridLayout(titleFrame);
	titleLayout->setColumnStretch(0, 1);
	titleLayout->setMargin(6);
	titleLayout->addWidget(m_pagesTitleLabel);

	// add pages
	QStackedWidget *pagesStackedWidget = new QStackedWidget;
	for (int i = 0; i < m_pageWidgets.size(); ++i)
		pagesStackedWidget->addWidget(m_pageWidgets.at(i));
	connect(pagesListWidget, SIGNAL(currentRowChanged(int)), pagesStackedWidget, SLOT(setCurrentIndex(int)));
	connect(pagesListWidget, SIGNAL(currentRowChanged(int)), this, SLOT(setCurrentPage(int)));
	pagesListWidget->setCurrentRow(0);

	QWidget *mainWidget = new QWidget;
	QGridLayout *mainLayout = new QGridLayout;
	mainLayout->addWidget(pagesListWidget, 0, 0, 2, 1);
	mainLayout->addWidget(titleFrame, 0, 1);
	mainLayout->addWidget(pagesStackedWidget, 1, 1);
	mainWidget->setLayout(mainLayout);

	return mainWidget;
}