C++ QSizePolicy::verticalPolicy方法代码示例

QString KPropertySizePolicyDelegate::valueToString(const QVariant& value, const QLocale &locale) const
{
    const QSizePolicy sp(value.value<QSizePolicy>());
    if (locale.language() == QLocale::C) {
        return QString::fromLatin1("%1, %2, %3, %4")
                .arg(KPropertyUtils::keyForEnumValue("SizePolicy", sp.horizontalPolicy()))
                .arg(KPropertyUtils::keyForEnumValue("SizePolicy", sp.verticalPolicy()))
                .arg(sp.horizontalStretch())
                .arg(sp.verticalStretch());
    }
    return QObject::tr("%1, %2, %3, %4", "Size Policy")
        .arg(s_sizePolicyListData->nameForPolicy(sp.horizontalPolicy()))
        .arg(s_sizePolicyListData->nameForPolicy(sp.verticalPolicy()))
        .arg(locale.toString(sp.horizontalStretch()))
        .arg(locale.toString(sp.verticalStretch()));
}

void SizePolicyComposedProperty::setValue(Property *property,
    const QVariant &value, bool rememberOldValue)
{
    const QSizePolicy sp( value.value<QSizePolicy>() );
    property->child("hor_policy")->setValue(sp.horizontalPolicy(), rememberOldValue, false);
    property->child("vert_policy")->setValue(sp.verticalPolicy(), rememberOldValue, false);
    property->child("hor_stretch")->setValue(sp.horizontalStretch(), rememberOldValue, false);
    property->child("vert_stretch")->setValue(sp.verticalStretch(), rememberOldValue, false);
}

/*!
    \reimp
*/
void QWidgetItem::setGeometry(const QRect &rect)
{
    if (isEmpty())
        return;

    QRect r = !wid->testAttribute(Qt::WA_LayoutUsesWidgetRect)
            ? fromLayoutItemRect(wid->d_func(), rect)
            : rect;
    const QSize widgetRectSurplus = r.size() - rect.size(); 

    /* 
       For historical reasons, this code is done using widget rect 
       coordinates, not layout item rect coordinates. However, 
       QWidgetItem's sizeHint(), maximumSize(), and heightForWidth() 
       all work in terms of layout item rect coordinates, so we have to 
       add or subtract widgetRectSurplus here and there. The code could 
       be much simpler if we did everything using layout item rect 
       coordinates and did the conversion right before the call to 
       QWidget::setGeometry(). 
     */ 

    QSize s = r.size().boundedTo(maximumSize() + widgetRectSurplus);  
    int x = r.x();
    int y = r.y();
    if (align & (Qt::AlignHorizontal_Mask | Qt::AlignVertical_Mask)) {
        QSize pref(sizeHint());
        QSizePolicy sp = wid->sizePolicy();
        if (sp.horizontalPolicy() == QSizePolicy::Ignored)
            pref.setWidth(wid->sizeHint().expandedTo(wid->minimumSize()).width());
        if (sp.verticalPolicy() == QSizePolicy::Ignored)
            pref.setHeight(wid->sizeHint().expandedTo(wid->minimumSize()).height());
        pref += widgetRectSurplus;
        if (align & Qt::AlignHorizontal_Mask)
            s.setWidth(qMin(s.width(), pref.width()));
        if (align & Qt::AlignVertical_Mask) {
            if (hasHeightForWidth())
                s.setHeight(qMin(s.height(), 
                                 heightForWidth(s.width() - widgetRectSurplus.width()) 
                                 + widgetRectSurplus.height()));
            else
                s.setHeight(qMin(s.height(), pref.height()));
        }
    }
    Qt::Alignment alignHoriz = QStyle::visualAlignment(wid->layoutDirection(), align);
    if (alignHoriz & Qt::AlignRight)
        x = x + (r.width() - s.width());
    else if (!(alignHoriz & Qt::AlignLeft))
        x = x + (r.width() - s.width()) / 2;

    if (align & Qt::AlignBottom)
        y = y + (r.height() - s.height());
    else if (!(align & Qt::AlignTop))
        y = y + (r.height() - s.height()) / 2;

    wid->setGeometry(x, y, s.width(), s.height());
}

QString SizePolicyDelegate::displayText( const QVariant& value ) const
{
    const QSizePolicy sp(value.value<QSizePolicy>());

    return QString::fromLatin1(SIZEPOLICY_MASK)
        .arg(s_sizePolicyListData->nameForPolicy(sp.horizontalPolicy()))
        .arg(s_sizePolicyListData->nameForPolicy(sp.verticalPolicy()))
        .arg(sp.horizontalStretch())
        .arg(sp.verticalStretch());
}

WBWebView *WBTabWidget::newTab(bool makeCurrent)
{
    // line edit
    WBUrlLineEdit *urlLineEdit = new WBUrlLineEdit;

    QSizePolicy urlPolicy = urlLineEdit->sizePolicy();
    urlLineEdit->setSizePolicy(QSizePolicy::MinimumExpanding, urlPolicy.verticalPolicy());

    QLineEdit *lineEdit = urlLineEdit->lineEdit();
    QSizePolicy policy = lineEdit->sizePolicy();
    lineEdit->setSizePolicy(QSizePolicy::MinimumExpanding, policy.verticalPolicy());

    if (!mLineEditCompleter && count() > 0)
    {
        WBHistoryCompletionModel *completionModel = new WBHistoryCompletionModel(this);
        completionModel->setSourceModel(WBBrowserWindow::historyManager()->historyFilterModel());
        mLineEditCompleter = new QCompleter(completionModel, this);
        // Should this be in Qt by default?
        QAbstractItemView *popup = mLineEditCompleter->popup();
        QListView *listView = qobject_cast<QListView*>(popup);
        if (listView)
            listView->setUniformItemSizes(true);
    }

    lineEdit->setCompleter(mLineEditCompleter);
    connect(lineEdit, SIGNAL(returnPressed()), this, SLOT(lineEditReturnPressed()));
    mLineEdits->addWidget(urlLineEdit);
    mLineEdits->setSizePolicy(lineEdit->sizePolicy());

    // optimization to delay creating the more expensive WebView, history, etc
    if (count() == 0)
    {
        QWidget *emptyWidget = new QWidget;
        QPalette p = emptyWidget->palette();
        p.setColor(QPalette::Window, palette().color(QPalette::Base));
        emptyWidget->setPalette(p);
        emptyWidget->setAutoFillBackground(true);
        disconnect(this, SIGNAL(currentChanged(int)), this, SLOT(currentChanged(int)));
        addTab(emptyWidget, tr("(Untitled)"));
        connect(this, SIGNAL(currentChanged(int)), this, SLOT(currentChanged(int)));
        return 0;
    }

/*
    SearchLineEdit is an enhanced QLineEdit
    - A Search icon on the left with optional menu
    - When there is no text and doesn't have focus an "inactive text" is displayed
    - When there is text a clear button is displayed on the right hand side
 */
SearchLineEdit::SearchLineEdit(QWidget *parent) : ExLineEdit(parent),
    m_searchButton(new SearchButton(this))
{
    connect(lineEdit(), SIGNAL(textChanged(QString)),
            this, SIGNAL(textChanged(QString)));
    setLeftWidget(m_searchButton);
    m_inactiveText = tr("Search");

    QSizePolicy policy = sizePolicy();
    setSizePolicy(QSizePolicy::Preferred, policy.verticalPolicy());
}

QString LayoutDumper::toString(const QSizePolicy& policy)
{
    QString result = QString("(%1, %2)")
            .arg(toString(policy.horizontalPolicy()))
            .arg(toString(policy.verticalPolicy()));
    if (policy.hasHeightForWidth()) {
        result += " [hasHeightForWidth]";
    }
    if (policy.hasWidthForHeight()) {
        result += " [hasWidthForHeight]";
    }
    return result;
}

static QString sizePolicyToString(const QSizePolicy &p)
{
    QString rc; {
        QTextStream str(&rc);
        str << "Control=" << p.controlType() << " expdirs=" << p.expandingDirections()
            << " hasHeightForWidth=" << p.hasHeightForWidth()
            << " H: Policy=" << p.horizontalPolicy()
            << " stretch=" << p.horizontalStretch()
            << " V: Policy=" << p.verticalPolicy()
            << " stretch=" << p.verticalStretch();
    }
    return rc;
}

/*
    SearchLineEdit is an enhanced QLineEdit
    - A Search icon on the left with optional menu
    - When there is no text and doesn't have focus an "inactive text" is displayed
    - When there is text a clear button is displayed on the right hand side
 */
WBSearchLineEdit::WBSearchLineEdit(QWidget *parent)
    : WBExLineEdit(parent),
    mSearchButton(new WBSearchButton(this))
{
    connect(lineEdit(), SIGNAL(textChanged(const QString &)),
            this, SIGNAL(textChanged(const QString &)));
    setLeftWidget(mSearchButton);
    mInactiveText = tr("Search");

    setMinimumWidth(150);

    QSizePolicy policy = sizePolicy();
    setSizePolicy(QSizePolicy::Maximum, policy.verticalPolicy());
}

SearchLineEdit::SearchLineEdit(QWidget *parent)
    : ExLineEdit(parent), searchButton(new SearchButton(this)) {
    connect(m_lineEdit, SIGNAL(textChanged(const QString &)), SIGNAL(textChanged(const QString &)));
    connect(m_lineEdit, SIGNAL(textEdited(const QString &)), SIGNAL(textEdited(const QString &)));
    connect(m_lineEdit, SIGNAL(returnPressed()), SLOT(returnPressed()));

    setLeftWidget(searchButton);
    inactiveText = tr("Search");

    QSizePolicy policy = sizePolicy();
    setSizePolicy(QSizePolicy::Preferred, policy.verticalPolicy());

    // completion
    autoComplete = new AutoComplete(this, m_lineEdit);
    connect(autoComplete, SIGNAL(suggestionAccepted(Suggestion *)),
            SIGNAL(suggestionAccepted(Suggestion *)));
}

/*
    SearchLineEdit is an enhanced QLineEdit
    - A Search icon on the left with optional menu
    - When there is no text and doesn't have focus an "inactive text" is displayed
    - When there is text a clear button is displayed on the right hand side
 */
SearchLineEdit::SearchLineEdit(QWidget *parent)
    : LineEdit(parent)
    , m_searchButton(new SearchButton(this))
{
    addWidget(m_searchButton, LeftSide);
    m_inactiveText = tr("Search");

    QSizePolicy policy = sizePolicy();
    setSizePolicy(QSizePolicy::Preferred, policy.verticalPolicy());

    // clear button on the right
    ClearButton *m_clearButton = new ClearButton(this);
    connect(m_clearButton, SIGNAL(clicked()),
            this, SLOT(clear()));
    connect(this, SIGNAL(textChanged(const QString&)),
            m_clearButton, SLOT(textChanged(const QString&)));
    addWidget(m_clearButton, RightSide);
    m_clearButton->hide();
}

void AnimatedFrame::updateSizeHints()
{
	if(widget_) {
		QSize hint = widget_->minimumSizeHint();
		if(!hint.isValid())
			hint = widget_->sizeHint();

		QSizePolicy policy = widget_->sizePolicy();

		if(edge_ == kNorth || edge_ == kSouth) {
			int minimum = widget_->minimumHeight();
			int maximum = widget_->maximumHeight();

			minimumSizeHint_.setWidth(0);
			minimumSizeHint_.setHeight(qBound(minimum, hint.height(), maximum));

			setSizePolicy(policy.horizontalPolicy(), QSizePolicy::Maximum);
		}
		else {
			int minimum = widget_->minimumWidth();
			int maximum = widget_->maximumWidth();

			minimumSizeHint_.setWidth(qBound(minimum, hint.width(), maximum));
			minimumSizeHint_.setHeight(0);

			setSizePolicy(QSizePolicy::Maximum, policy.verticalPolicy());
		}

		setMinimumSize(widget_->minimumSize());
		setMaximumSize(widget_->maximumSize());
	}
	else {
		minimumSizeHint_ = QSize();
		setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
	}

	sizeHint_ = minimumSizeHint_;

	if(isUnfolded())
		updateGeometry();
}

osg::GraphicsContext::Traits* GraphicsWindowQt::createTraits( const QGLWidget* widget )
{
    osg::GraphicsContext::Traits *traits = new osg::GraphicsContext::Traits;

    qglFormat2traits( widget->format(), traits );

    QRect r = widget->geometry();
    traits->x = r.x();
    traits->y = r.y();
    traits->width = r.width();
    traits->height = r.height();

    traits->windowName = widget->windowTitle().toLocal8Bit().data();
    Qt::WindowFlags f = widget->windowFlags();
    traits->windowDecoration = ( f & Qt::WindowTitleHint ) &&
                            ( f & Qt::WindowMinMaxButtonsHint ) &&
                            ( f & Qt::WindowSystemMenuHint );
    QSizePolicy sp = widget->sizePolicy();
    traits->supportsResize = sp.horizontalPolicy() != QSizePolicy::Fixed ||
                            sp.verticalPolicy() != QSizePolicy::Fixed;

    return traits;
}

WBTabWidget::WBTabWidget(QWidget *parent)
    : QTabWidget(parent)
    , mRecentlyClosedTabsMenu(0)
    , mLineEditCompleter(0)
    , mLineEdits(0)
    , mTabBar(new WBTabBar(this))
{
    setObjectName("ubWebBrowserTabWidget");
    mAddTabIcon = QPixmap(":/images/toolbar/plusBlack.png");

    setElideMode(Qt::ElideRight);

    connect(mTabBar, SIGNAL(newTab()), this, SLOT(newTab()));
    connect(mTabBar, SIGNAL(closeTab(int)), this, SLOT(closeTab(int)));
    connect(mTabBar, SIGNAL(cloneTab(int)), this, SLOT(cloneTab(int)));
    connect(mTabBar, SIGNAL(closeOtherTabs(int)), this, SLOT(closeOtherTabs(int)));
    connect(mTabBar, SIGNAL(reloadTab(int)), this, SLOT(reloadTab(int)));
    connect(mTabBar, SIGNAL(reloadAllTabs()), this, SLOT(reloadAllTabs()));
    connect(mTabBar, SIGNAL(tabMoved(int, int)), this, SLOT(moveTab(int, int)));
    setTabBar(mTabBar);
    setDocumentMode(false);

    mRecentlyClosedTabsMenu = new QMenu(this);
    connect(mRecentlyClosedTabsMenu, SIGNAL(aboutToShow()), this, SLOT(aboutToShowRecentTabsMenu()));
    connect(mRecentlyClosedTabsMenu, SIGNAL(triggered(QAction *)), this, SLOT(aboutToShowRecentTriggeredAction(QAction *)));
    mRecentlyClosedTabsAction = new QAction(tr("Recently Closed Tabs"), this);
    mRecentlyClosedTabsAction->setMenu(mRecentlyClosedTabsMenu);
    mRecentlyClosedTabsAction->setEnabled(false);

    connect(this, SIGNAL(currentChanged(int)), this, SLOT(currentChanged(int)));

    mLineEdits = new QStackedWidget(this);
    mLineEdits->setMinimumWidth(200);
    QSizePolicy spolicy = mLineEdits->sizePolicy();
    mLineEdits->setSizePolicy(QSizePolicy::Maximum, spolicy.verticalPolicy());
}

/*
    SearchLineEdit is an enhanced QLineEdit
    - A Search icon on the left with optional menu
    - When there is no text and doesn't have focus an "inactive text" is displayed
    - When there is text a clear button is displayed on the right hand side
 */
SearchLineEdit::SearchLineEdit(QWidget *parent)
    : LineEdit(parent)
    , m_searchButton(0)
{
    setUpdatesEnabled(false);
    m_searchButton = new SearchButton(this);
    updateGeometries();
    addWidget(m_searchButton, LeftSide);
    setInactiveText(tr("Search"));

    QSizePolicy policy = sizePolicy();
    setSizePolicy(QSizePolicy::Preferred, policy.verticalPolicy());

    // clear button on the right
    ClearButton *m_clearButton = new ClearButton(this);
    connect(m_clearButton, SIGNAL(clicked()),
            this, SLOT(clear()));
    connect(this, SIGNAL(textChanged(const QString&)),
            m_clearButton, SLOT(textChanged(const QString&)));
    addWidget(m_clearButton, RightSide);
    m_clearButton->hide();
    updateTextMargins();
    setUpdatesEnabled(true);
}