qquickcontrol.cpp

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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#include "qquickcontrol_p.h"
#include "qquickcontrol_p_p.h"
 
#include <QtGui/qstylehints.h>
#include <QtGui/qguiapplication.h>
#include "qquicklabel_p.h"
#include "qquicklabel_p_p.h"
#include "qquicktextarea_p.h"
#include "qquicktextarea_p_p.h"
#include "qquicktextfield_p.h"
#include "qquicktextfield_p_p.h"
#include "qquickpopup_p.h"
#include "qquickpopupitem_p_p.h"
#include "qquickapplicationwindow_p.h"
#include "qquickdeferredexecute_p_p.h"
#include "qquickcontentitem_p.h"
 
#if QT_CONFIG(accessibility)
#include <QtQuick/private/qquickaccessibleattached_p.h>
#endif
 
QT_BEGIN_NAMESPACE
 
Q_LOGGING_CATEGORY(lcItemManagement, "qt.quick.controls.control.itemmanagement")
 
 
 
const QQuickItemPrivate::ChangeTypes QQuickControlPrivate::ImplicitSizeChanges = QQuickItemPrivate::ImplicitWidth | QQuickItemPrivate::ImplicitHeight | QQuickItemPrivate::Destroyed;
 
static bool isKeyFocusReason(Qt::FocusReason reason)
{
    return reason == Qt::TabFocusReason || reason == Qt::BacktabFocusReason || reason == Qt::ShortcutFocusReason;
}
 
QQuickControlPrivate::QQuickControlPrivate()
{
#if QT_CONFIG(accessibility)
    QAccessible::installActivationObserver(this);
#endif
}
 
QQuickControlPrivate::~QQuickControlPrivate()
{
}
 
void QQuickControlPrivate::init()
{
    Q_Q(QQuickControl);
    QObject::connect(q, &QQuickItem::baselineOffsetChanged, q, &QQuickControl::baselineOffsetChanged);
}
 
#if QT_CONFIG(quicktemplates2_multitouch)
bool QQuickControlPrivate::acceptTouch(const QTouchEvent::TouchPoint &point)
{
    if (point.id() == touchId)
        return true;
 
    if (touchId == -1 && point.state() == QEventPoint::Pressed) {
        touchId = point.id();
        return true;
    }
 
    return false;
}
#endif
 
static void setActiveFocus(QQuickControl *control, Qt::FocusReason reason)
{
    QQuickControlPrivate *d = QQuickControlPrivate::get(control);
    if (d->subFocusItem && d->window && d->flags & QQuickItem::ItemIsFocusScope)
        QQuickWindowPrivate::get(d->window)->clearFocusInScope(control, d->subFocusItem, reason);
    control->forceActiveFocus(reason);
}
 
bool QQuickControlPrivate::handlePress(const QPointF &, ulong)
{
    Q_Q(QQuickControl);
    if ((focusPolicy & Qt::ClickFocus) == Qt::ClickFocus && !QGuiApplication::styleHints()->setFocusOnTouchRelease()) {
        setActiveFocus(q, Qt::MouseFocusReason);
        return true;
    }
    return true;
}
 
bool QQuickControlPrivate::handleMove(const QPointF &point, ulong)
{
#if QT_CONFIG(quicktemplates2_hover)
    Q_Q(QQuickControl);
    q->setHovered(hoverEnabled && q->contains(point));
#else
    Q_UNUSED(point);
#endif
    return true;
}
 
bool QQuickControlPrivate::handleRelease(const QPointF &, ulong)
{
    Q_Q(QQuickControl);
    bool accepted = true;
    if ((focusPolicy & Qt::ClickFocus) == Qt::ClickFocus && QGuiApplication::styleHints()->setFocusOnTouchRelease()) {
        setActiveFocus(q, Qt::MouseFocusReason);
        accepted = true;
    }
    touchId = -1;
    return accepted;
}
 
void QQuickControlPrivate::handleUngrab()
{
    touchId = -1;
}
 
void QQuickControlPrivate::mirrorChange()
{
    Q_Q(QQuickControl);
    q->mirrorChange();
}
 
void QQuickControlPrivate::setTopPadding(qreal value, bool reset)
{
    Q_Q(QQuickControl);
    const QMarginsF oldPadding = getPadding();
    extra.value().topPadding = value;
    extra.value().hasTopPadding = !reset;
    if ((!reset && !qFuzzyCompare(oldPadding.top(), value)) || (reset && !qFuzzyCompare(oldPadding.top(), getVerticalPadding()))) {
        emit q->topPaddingChanged();
        emit q->availableHeightChanged();
        q->paddingChange(getPadding(), oldPadding);
    }
}
 
void QQuickControlPrivate::setLeftPadding(qreal value, bool reset)
{
    Q_Q(QQuickControl);
    const QMarginsF oldPadding = getPadding();
    extra.value().leftPadding = value;
    extra.value().hasLeftPadding = !reset;
    if ((!reset && !qFuzzyCompare(oldPadding.left(), value)) || (reset && !qFuzzyCompare(oldPadding.left(), getHorizontalPadding()))) {
        emit q->leftPaddingChanged();
        emit q->availableWidthChanged();
        q->paddingChange(getPadding(), oldPadding);
    }
}
 
void QQuickControlPrivate::setRightPadding(qreal value, bool reset)
{
    Q_Q(QQuickControl);
    const QMarginsF oldPadding = getPadding();
    extra.value().rightPadding = value;
    extra.value().hasRightPadding = !reset;
    if ((!reset && !qFuzzyCompare(oldPadding.right(), value)) || (reset && !qFuzzyCompare(oldPadding.right(), getHorizontalPadding()))) {
        emit q->rightPaddingChanged();
        emit q->availableWidthChanged();
        q->paddingChange(getPadding(), oldPadding);
    }
}
 
void QQuickControlPrivate::setBottomPadding(qreal value, bool reset)
{
    Q_Q(QQuickControl);
    const QMarginsF oldPadding = getPadding();
    extra.value().bottomPadding = value;
    extra.value().hasBottomPadding = !reset;
    if ((!reset && !qFuzzyCompare(oldPadding.bottom(), value)) || (reset && !qFuzzyCompare(oldPadding.bottom(), getVerticalPadding()))) {
        emit q->bottomPaddingChanged();
        emit q->availableHeightChanged();
        q->paddingChange(getPadding(), oldPadding);
    }
}
 
void QQuickControlPrivate::setHorizontalPadding(qreal value, bool reset)
{
    Q_Q(QQuickControl);
    const QMarginsF oldPadding = getPadding();
    const qreal oldHorizontalPadding = getHorizontalPadding();
    horizontalPadding = value;
    hasHorizontalPadding = !reset;
    if ((!reset && !qFuzzyCompare(oldHorizontalPadding, value)) || (reset && !qFuzzyCompare(oldHorizontalPadding, padding))) {
        const QMarginsF newPadding = getPadding();
        if (!qFuzzyCompare(newPadding.left(), oldPadding.left()))
            emit q->leftPaddingChanged();
        if (!qFuzzyCompare(newPadding.right(), oldPadding.right()))
            emit q->rightPaddingChanged();
        emit q->horizontalPaddingChanged();
        emit q->availableWidthChanged();
        q->paddingChange(newPadding, oldPadding);
    }
}
 
void QQuickControlPrivate::setVerticalPadding(qreal value, bool reset)
{
    Q_Q(QQuickControl);
    const QMarginsF oldPadding = getPadding();
    const qreal oldVerticalPadding = getVerticalPadding();
    verticalPadding = value;
    hasVerticalPadding = !reset;
    if ((!reset && !qFuzzyCompare(oldVerticalPadding, value)) || (reset && !qFuzzyCompare(oldVerticalPadding, padding))) {
        const QMarginsF newPadding = getPadding();
        if (!qFuzzyCompare(newPadding.top(), oldPadding.top()))
            emit q->topPaddingChanged();
        if (!qFuzzyCompare(newPadding.bottom(), oldPadding.bottom()))
            emit q->bottomPaddingChanged();
        emit q->verticalPaddingChanged();
        emit q->availableHeightChanged();
        q->paddingChange(newPadding, oldPadding);
    }
}
 
void QQuickControlPrivate::setTopInset(qreal value, bool reset)
{
    Q_Q(QQuickControl);
    const QMarginsF oldInset = getInset();
    extra.value().topInset = value;
    extra.value().hasTopInset = !reset;
    if (!qFuzzyCompare(oldInset.top(), value)) {
        emit q->topInsetChanged();
        q->insetChange(getInset(), oldInset);
    }
}
 
void QQuickControlPrivate::setLeftInset(qreal value, bool reset)
{
    Q_Q(QQuickControl);
    const QMarginsF oldInset = getInset();
    extra.value().leftInset = value;
    extra.value().hasLeftInset = !reset;
    if (!qFuzzyCompare(oldInset.left(), value)) {
        emit q->leftInsetChanged();
        q->insetChange(getInset(), oldInset);
    }
}
 
void QQuickControlPrivate::setRightInset(qreal value, bool reset)
{
    Q_Q(QQuickControl);
    const QMarginsF oldInset = getInset();
    extra.value().rightInset = value;
    extra.value().hasRightInset = !reset;
    if (!qFuzzyCompare(oldInset.right(), value)) {
        emit q->rightInsetChanged();
        q->insetChange(getInset(), oldInset);
    }
}
 
void QQuickControlPrivate::setBottomInset(qreal value, bool reset)
{
    Q_Q(QQuickControl);
    const QMarginsF oldInset = getInset();
    extra.value().bottomInset = value;
    extra.value().hasBottomInset = !reset;
    if (!qFuzzyCompare(oldInset.bottom(), value)) {
        emit q->bottomInsetChanged();
        q->insetChange(getInset(), oldInset);
    }
}
 
void QQuickControlPrivate::resizeBackground()
{
    if (!background)
        return;
 
    resizingBackground = true;
 
    QQuickItemPrivate *p = QQuickItemPrivate::get(background);
    bool changeWidth = false;
    bool changeHeight = false;
    if (((!p->widthValid() || !extra.isAllocated() || !extra->hasBackgroundWidth) && qFuzzyIsNull(background->x()))
            || (extra.isAllocated() && (extra->hasLeftInset || extra->hasRightInset))) {
        background->setX(getLeftInset());
        changeWidth = !p->width.hasBinding();
    }
    if (((!p->heightValid() || !extra.isAllocated() || !extra->hasBackgroundHeight) && qFuzzyIsNull(background->y()))
            || (extra.isAllocated() && (extra->hasTopInset || extra->hasBottomInset))) {
        background->setY(getTopInset());
        changeHeight = !p->height.hasBinding();
    }
    if (changeHeight || changeWidth) {
        auto newWidth = changeWidth ?
            width.valueBypassingBindings() - getLeftInset() - getRightInset() :
            p->width.valueBypassingBindings();
        auto newHeight = changeHeight ?
            height.valueBypassingBindings() - getTopInset() - getBottomInset() :
            p->height.valueBypassingBindings();
        background->setSize({newWidth, newHeight});
    }
 
    resizingBackground = false;
}
 
void QQuickControlPrivate::resizeContent()
{
    Q_Q(QQuickControl);
    if (contentItem) {
        contentItem->setPosition(QPointF(q->leftPadding(), q->topPadding()));
        contentItem->setSize(QSizeF(q->availableWidth(), q->availableHeight()));
    }
}
 
QQuickItem *QQuickControlPrivate::getContentItem()
{
    if (!contentItem)
        executeContentItem();
    return contentItem;
}
 
void QQuickControlPrivate::setContentItem_helper(QQuickItem *item, bool notify)
{
    Q_Q(QQuickControl);
    if (contentItem == item)
        return;
 
    if (notify)
        warnIfCustomizationNotSupported(q, item, QStringLiteral("contentItem"));
 
    if (!contentItem.isExecuting())
        cancelContentItem();
 
    QQuickItem *oldContentItem = contentItem;
    if (oldContentItem) {
        disconnect(oldContentItem, &QQuickItem::baselineOffsetChanged, this, &QQuickControlPrivate::updateBaselineOffset);
        if (oldContentItem)
            QQuickItemPrivate::get(oldContentItem)->removeItemChangeListener(this, QQuickControlPrivate::Focus);
        removeImplicitSizeListener(oldContentItem);
    }
 
    contentItem = item;
    q->contentItemChange(item, oldContentItem);
    QQuickControlPrivate::hideOldItem(oldContentItem);
 
    if (item) {
        connect(contentItem.data(), &QQuickItem::baselineOffsetChanged, this, &QQuickControlPrivate::updateBaselineOffset);
        // We need to update the control's focusReason when the contentItem receives or loses focus. Since focusPolicy
        // (or other properties impacting focus handling, like QQuickItem::activeFocusOnTab) might change later, and
        // since the content item might also change focus programmatically, we always have to listen for those events.
        QQuickItemPrivate::get(item)->addItemChangeListener(this, QQuickControlPrivate::Focus);
        if (!item->parentItem())
            item->setParentItem(q);
        if (componentComplete)
            resizeContent();
        addImplicitSizeListener(contentItem);
    }
 
    updateImplicitContentSize();
    updateBaselineOffset();
 
    if (notify && !contentItem.isExecuting())
        emit q->contentItemChanged();
}
 
qreal QQuickControlPrivate::getContentWidth() const
{
    return contentItem ? contentItem->implicitWidth() : 0;
}
 
qreal QQuickControlPrivate::getContentHeight() const
{
    return contentItem ? contentItem->implicitHeight() : 0;
}
 
void QQuickControlPrivate::updateImplicitContentWidth()
{
    Q_Q(QQuickControl);
    const qreal oldWidth = implicitContentWidth;
    implicitContentWidth = getContentWidth();
    if (!qFuzzyCompare(implicitContentWidth, oldWidth))
        emit q->implicitContentWidthChanged();
}
 
void QQuickControlPrivate::updateImplicitContentHeight()
{
    Q_Q(QQuickControl);
    const qreal oldHeight = implicitContentHeight;
    implicitContentHeight = getContentHeight();
    if (!qFuzzyCompare(implicitContentHeight, oldHeight))
        emit q->implicitContentHeightChanged();
}
 
void QQuickControlPrivate::updateImplicitContentSize()
{
    Q_Q(QQuickControl);
    const qreal oldWidth = implicitContentWidth;
    const qreal oldHeight = implicitContentHeight;
    implicitContentWidth = getContentWidth();
    implicitContentHeight = getContentHeight();
    if (!qFuzzyCompare(implicitContentWidth, oldWidth))
        emit q->implicitContentWidthChanged();
    if (!qFuzzyCompare(implicitContentHeight, oldHeight))
        emit q->implicitContentHeightChanged();
}
 
QPalette QQuickControlPrivate::defaultPalette() const
{
    return QQuickTheme::palette(QQuickTheme::System);
}
 
#if QT_CONFIG(accessibility)
void QQuickControlPrivate::accessibilityActiveChanged(bool active)
{
    Q_Q(QQuickControl);
    return q->accessibilityActiveChanged(active);
}
 
QAccessible::Role QQuickControlPrivate::accessibleRole() const
{
    Q_Q(const QQuickControl);
    return q->accessibleRole();
}
 
QQuickAccessibleAttached *QQuickControlPrivate::accessibleAttached(const QObject *object)
{
    if (!QAccessible::isActive())
        return nullptr;
    return QQuickAccessibleAttached::attachedProperties(object);
}
#endif
 
QFont QQuickControlPrivate::parentFont(const QQuickItem *item)
{
    QQuickItem *p = item->parentItem();
    while (p) {
        if (QQuickControl *control = qobject_cast<QQuickControl *>(p))
            return QQuickControlPrivate::get(control)->resolvedFont;
        else if (QQuickLabel *label = qobject_cast<QQuickLabel *>(p))
            return label->QQuickText::font();
        else if (QQuickTextField *textField = qobject_cast<QQuickTextField *>(p))
            return textField->QQuickTextInput::font();
        else if (QQuickTextArea *textArea = qobject_cast<QQuickTextArea *>(p))
            return textArea->QQuickTextEdit::font();
 
        p = p->parentItem();
    }
 
    if (QQuickApplicationWindow *window = qobject_cast<QQuickApplicationWindow *>(item->window()))
        return window->font();
 
    return QQuickTheme::font(QQuickTheme::System);
}
 
void QQuickControlPrivate::resolveFont()
{
    Q_Q(QQuickControl);
    inheritFont(parentFont(q));
}
 
void QQuickControlPrivate::inheritFont(const QFont &font)
{
    Q_Q(QQuickControl);
    QFont parentFont = extra.isAllocated() ? extra->requestedFont.resolve(font) : font;
    parentFont.setResolveMask(extra.isAllocated() ? extra->requestedFont.resolveMask() | font.resolveMask() : font.resolveMask());
 
    const QFont defaultFont = q->defaultFont();
    QFont resolvedFont = parentFont.resolve(defaultFont);
 
    setFont_helper(resolvedFont);
}
 
void QQuickControlPrivate::updateFont(const QFont &font)
{
    Q_Q(QQuickControl);
    QFont oldFont = resolvedFont;
    resolvedFont = font;
 
    if (oldFont != font)
        q->fontChange(font, oldFont);
 
    QQuickControlPrivate::updateFontRecur(q, font);
 
    if (oldFont != font)
        emit q->fontChanged();
}
 
void QQuickControlPrivate::updateFontRecur(QQuickItem *item, const QFont &font)
{
    const auto childItems = item->childItems();
    for (QQuickItem *child : childItems) {
        if (QQuickControl *control = qobject_cast<QQuickControl *>(child))
            QQuickControlPrivate::get(control)->inheritFont(font);
        else if (QQuickLabel *label = qobject_cast<QQuickLabel *>(child))
            QQuickLabelPrivate::get(label)->inheritFont(font);
        else if (QQuickTextArea *textArea = qobject_cast<QQuickTextArea *>(child))
            QQuickTextAreaPrivate::get(textArea)->inheritFont(font);
        else if (QQuickTextField *textField = qobject_cast<QQuickTextField *>(child))
            QQuickTextFieldPrivate::get(textField)->inheritFont(font);
        else
            QQuickControlPrivate::updateFontRecur(child, font);
    }
}
 
QLocale QQuickControlPrivate::calcLocale(const QQuickItem *item)
{
    const QQuickItem *p = item;
    while (p) {
        if (const QQuickControl *control = qobject_cast<const QQuickControl *>(p))
            return control->locale();
 
        QVariant v = p->property("locale");
        if (v.isValid() && v.userType() == QMetaType::QLocale)
            return v.toLocale();
 
        p = p->parentItem();
    }
 
    if (item) {
        if (QQuickApplicationWindow *window = qobject_cast<QQuickApplicationWindow *>(item->window()))
            return window->locale();
    }
 
    return QLocale();
}
 
void QQuickControlPrivate::warnIfCustomizationNotSupported(QObject *control, QQuickItem *item, const QString &propertyName)
{
    static const bool ignoreWarnings = [](){
        return qEnvironmentVariableIntValue("QT_QUICK_CONTROLS_IGNORE_CUSTOMIZATION_WARNINGS");
    }();
    if (ignoreWarnings)
        return;
 
    if (!control->property("__notCustomizable").toBool()
            || (item && item->property("__ignoreNotCustomizable").toBool()))
        return;
 
    qmlWarning(item ? item : control).nospace() << "The current style does not support customization of this control "
        << "(property: " << propertyName << " item: " << item << "). "
        "Please customize a non-native style (such as Basic, Fusion, Material, etc). For more information, see: "
        "https://doc.qt.io/qt-6/qtquickcontrols2-customize.html#customization-reference";
}
 
void QQuickControlPrivate::updateLocale(const QLocale &l, bool e)
{
    Q_Q(QQuickControl);
    if (!e && hasLocale)
        return;
 
    QLocale old = q->locale();
    hasLocale = e;
    if (old != l) {
        locale = l;
        q->localeChange(l, old);
        QQuickControlPrivate::updateLocaleRecur(q, l);
        emit q->localeChanged();
    }
}
 
void QQuickControlPrivate::updateLocaleRecur(QQuickItem *item, const QLocale &l)
{
    const auto childItems = item->childItems();
    for (QQuickItem *child : childItems) {
        if (QQuickControl *control = qobject_cast<QQuickControl *>(child))
            QQuickControlPrivate::get(control)->updateLocale(l, false);
        else
            updateLocaleRecur(child, l);
    }
}
 
#if QT_CONFIG(quicktemplates2_hover)
void QQuickControlPrivate::updateHoverEnabled(bool enabled, bool xplicit)
{
    Q_Q(QQuickControl);
    if (!xplicit && explicitHoverEnabled)
        return;
 
    bool wasEnabled = q->isHoverEnabled();
    explicitHoverEnabled = xplicit;
    if (wasEnabled != enabled) {
        q->setAcceptHoverEvents(enabled);
        QQuickControlPrivate::updateHoverEnabledRecur(q, enabled);
        emit q->hoverEnabledChanged();
    }
}
 
void QQuickControlPrivate::updateHoverEnabledRecur(QQuickItem *item, bool enabled)
{
    const auto childItems = item->childItems();
    for (QQuickItem *child : childItems) {
        if (QQuickControl *control = qobject_cast<QQuickControl *>(child))
            QQuickControlPrivate::get(control)->updateHoverEnabled(enabled, false);
        else
            updateHoverEnabledRecur(child, enabled);
    }
}
 
bool QQuickControlPrivate::calcHoverEnabled(const QQuickItem *item)
{
    const QQuickItem *p = item;
    while (p) {
        // QQuickPopupItem accepts hover events to avoid leaking them through.
        // Don't inherit that to the children of the popup, but fallback to the
        // environment variable or style hint.
        if (qobject_cast<const QQuickPopupItem *>(p))
            break;
 
        if (const QQuickControl *control = qobject_cast<const QQuickControl *>(p))
            return control->isHoverEnabled();
 
        QVariant v = p->property("hoverEnabled");
        if (v.isValid() && v.userType() == QMetaType::Bool)
            return v.toBool();
 
        p = p->parentItem();
    }
 
    bool ok = false;
    int env = qEnvironmentVariableIntValue("QT_QUICK_CONTROLS_HOVER_ENABLED", &ok);
    if (ok)
        return env != 0;
 
    // TODO: QQuickApplicationWindow::isHoverEnabled()
 
    return QGuiApplication::styleHints()->useHoverEffects();
}
#endif
 
static inline QString contentItemName() { return QStringLiteral("contentItem"); }
 
void QQuickControlPrivate::cancelContentItem()
{
    Q_Q(QQuickControl);
    quickCancelDeferred(q, contentItemName());
}
 
void QQuickControlPrivate::executeContentItem(bool complete)
{
    Q_Q(QQuickControl);
    if (contentItem.wasExecuted())
        return;
 
    if (!contentItem || complete)
        quickBeginDeferred(q, contentItemName(), contentItem);
    if (complete)
        quickCompleteDeferred(q, contentItemName(), contentItem);
}
 
void QQuickControlPrivate::cancelBackground()
{
    Q_Q(QQuickControl);
    quickCancelDeferred(q, backgroundName());
}
 
void QQuickControlPrivate::executeBackground(bool complete)
{
    Q_Q(QQuickControl);
    if (background.wasExecuted())
        return;
 
    if (!background || complete)
        quickBeginDeferred(q, backgroundName(), background);
    if (complete)
        quickCompleteDeferred(q, backgroundName(), background);
}
 
/*
    \internal
 
    Hides an item that was replaced by a newer one, rather than
    deleting it, as the item is typically created in QML and hence
    we don't own it.
*/
void QQuickControlPrivate::hideOldItem(QQuickItem *item)
{
    if (!item)
        return;
 
    qCDebug(lcItemManagement) << "hiding old item" << item;
 
    item->setVisible(false);
    item->setParentItem(nullptr);
 
#if QT_CONFIG(accessibility)
    // Remove the item from the accessibility tree.
    QQuickAccessibleAttached *accessible = accessibleAttached(item);
    if (accessible)
        accessible->setIgnored(true);
#endif
}
 
/*
    \internal
 
    Named "unhide" because it's used for cases where an item
    that was previously hidden by \l hideOldItem() wants to be
    shown by a control again, such as a ScrollBar in ScrollView.
 
    \a visibility controls the visibility of \a item, as there
    may have been bindings that controlled visibility, such as
    with a typical ScrollBar.qml implementation:
 
    \code
        visible: control.policy !== T.ScrollBar.AlwaysOff
    \endcode
 
    In the future we could try to save the binding for the visible
    property (using e.g. QQmlAnyBinding::takeFrom), but for now we
    keep it simple and just allow restoring an equivalent literal value.
*/
void QQuickControlPrivate::unhideOldItem(QQuickControl *control, QQuickItem *item, UnhideVisibility visibility)
{
    Q_ASSERT(item);
    qCDebug(lcItemManagement) << "unhiding old item" << item;
 
    item->setVisible(visibility == UnhideVisibility::Show);
    item->setParentItem(control);
 
#if QT_CONFIG(accessibility)
    // Add the item back in to the accessibility tree.
    QQuickAccessibleAttached *accessible = accessibleAttached(item);
    if (accessible)
        accessible->setIgnored(false);
#endif
}
 
void QQuickControlPrivate::updateBaselineOffset()
{
    Q_Q(QQuickControl);
    if (extra.isAllocated() && extra.value().hasBaselineOffset)
        return;
 
    if (!contentItem)
        q->QQuickItem::setBaselineOffset(0);
    else
        q->QQuickItem::setBaselineOffset(getTopPadding() + contentItem->baselineOffset());
}
 
void QQuickControlPrivate::addImplicitSizeListener(QQuickItem *item, ChangeTypes changes)
{
    addImplicitSizeListener(item, this, changes);
}
 
void QQuickControlPrivate::removeImplicitSizeListener(QQuickItem *item, ChangeTypes changes)
{
    removeImplicitSizeListener(item, this, changes);
}
 
void QQuickControlPrivate::addImplicitSizeListener(QQuickItem *item, QQuickItemChangeListener *listener, ChangeTypes changes)
{
    if (!item || !listener)
        return;
    QQuickItemPrivate::get(item)->addItemChangeListener(listener, changes);
}
 
void QQuickControlPrivate::removeImplicitSizeListener(QQuickItem *item, QQuickItemChangeListener *listener, ChangeTypes changes)
{
    if (!item || !listener)
        return;
    QQuickItemPrivate::get(item)->removeItemChangeListener(listener, changes);
}
 
void QQuickControlPrivate::itemImplicitWidthChanged(QQuickItem *item)
{
    Q_Q(QQuickControl);
    if (item == background)
        emit q->implicitBackgroundWidthChanged();
    else if (item == contentItem)
        updateImplicitContentWidth();
}
 
void QQuickControlPrivate::itemImplicitHeightChanged(QQuickItem *item)
{
    Q_Q(QQuickControl);
    if (item == background)
        emit q->implicitBackgroundHeightChanged();
    else if (item == contentItem)
        updateImplicitContentHeight();
}
 
void QQuickControlPrivate::itemGeometryChanged(QQuickItem *item, QQuickGeometryChange change, const QRectF &diff)
{
    Q_UNUSED(diff);
    if (resizingBackground || item != background || !change.sizeChange())
        return;
 
    QQuickItemPrivate *p = QQuickItemPrivate::get(item);
    // Only set hasBackgroundWidth/Height if it was a width/height change,
    // otherwise we're prevented from setting a width/height in the future.
    if (change.widthChange())
        extra.value().hasBackgroundWidth = p->widthValid();
    if (change.heightChange())
        extra.value().hasBackgroundHeight = p->heightValid();
    resizeBackground();
}
 
void QQuickControlPrivate::itemDestroyed(QQuickItem *item)
{
    Q_Q(QQuickControl);
    if (item == background) {
        background = nullptr;
        emit q->implicitBackgroundWidthChanged();
        emit q->implicitBackgroundHeightChanged();
    } else if (item == contentItem) {
        contentItem = nullptr;
        updateImplicitContentSize();
    }
}
 
void QQuickControlPrivate::itemFocusChanged(QQuickItem *item, Qt::FocusReason reason)
{
    Q_Q(QQuickControl);
    if (item == contentItem || item == q)
        q->setFocusReason(reason);
}
 
QQuickControl::QQuickControl(QQuickItem *parent)
    : QQuickItem(*(new QQuickControlPrivate), parent)
{
    Q_D(QQuickControl);
    d->init();
}
 
QQuickControl::QQuickControl(QQuickControlPrivate &dd, QQuickItem *parent)
    : QQuickItem(dd, parent)
{
    Q_D(QQuickControl);
    d->init();
}
 
QQuickControl::~QQuickControl()
{
    Q_D(QQuickControl);
    d->removeImplicitSizeListener(d->background, QQuickControlPrivate::ImplicitSizeChanges | QQuickItemPrivate::Geometry);
    d->removeImplicitSizeListener(d->contentItem);
    if (d->contentItem)
        QQuickItemPrivate::get(d->contentItem)->removeItemChangeListener(d, QQuickItemPrivate::Focus);
#if QT_CONFIG(accessibility)
    QAccessible::removeActivationObserver(d);
#endif
}
 
void QQuickControl::itemChange(QQuickItem::ItemChange change, const QQuickItem::ItemChangeData &value)
{
    Q_D(QQuickControl);
    QQuickItem::itemChange(change, value);
    switch (change) {
    case ItemEnabledHasChanged:
        enabledChange();
        break;
    case ItemVisibleHasChanged:
#if QT_CONFIG(quicktemplates2_hover)
        if (!value.boolValue)
            setHovered(false);
#endif
        break;
    case ItemSceneChange:
    case ItemParentHasChanged:
        if ((change == ItemParentHasChanged && value.item) || (change == ItemSceneChange && value.window)) {
            d->resolveFont();
            if (!d->hasLocale)
                d->updateLocale(QQuickControlPrivate::calcLocale(d->parentItem), false); // explicit=false
#if QT_CONFIG(quicktemplates2_hover)
            if (!d->explicitHoverEnabled)
                d->updateHoverEnabled(QQuickControlPrivate::calcHoverEnabled(d->parentItem), false); // explicit=false
#endif
        }
        break;
    case ItemActiveFocusHasChanged:
        if (isKeyFocusReason(d->focusReason))
            emit visualFocusChanged();
        break;
    default:
        break;
    }
}
 
QFont QQuickControl::font() const
{
    Q_D(const QQuickControl);
    QFont font = d->resolvedFont;
    // The resolveMask should inherit from the requestedFont
    font.setResolveMask(d->extra.value().requestedFont.resolveMask());
    return font;
}
 
void QQuickControl::setFont(const QFont &font)
{
    Q_D(QQuickControl);
    if (d->extra.value().requestedFont.resolveMask() == font.resolveMask() && d->extra.value().requestedFont == font)
        return;
 
    d->extra.value().requestedFont = font;
    d->resolveFont();
}
 
void QQuickControl::resetFont()
{
    setFont(QFont());
}
 
qreal QQuickControl::availableWidth() const
{
    return qMax<qreal>(0.0, width() - leftPadding() - rightPadding());
}
 
qreal QQuickControl::availableHeight() const
{
    return qMax<qreal>(0.0, height() - topPadding() - bottomPadding());
}
 
qreal QQuickControl::padding() const
{
    Q_D(const QQuickControl);
    return d->padding;
}
 
void QQuickControl::setPadding(qreal padding)
{
    Q_D(QQuickControl);
    if (qFuzzyCompare(d->padding, padding))
        return;
 
    const QMarginsF oldPadding = d->getPadding();
    const qreal oldVerticalPadding = d->getVerticalPadding();
    const qreal oldHorizontalPadding = d->getHorizontalPadding();
 
    d->padding = padding;
    emit paddingChanged();
 
    const QMarginsF newPadding = d->getPadding();
    const qreal newVerticalPadding = d->getVerticalPadding();
    const qreal newHorizontalPadding = d->getHorizontalPadding();
 
    if (!qFuzzyCompare(newPadding.top(), oldPadding.top()))
        emit topPaddingChanged();
    if (!qFuzzyCompare(newPadding.left(), oldPadding.left()))
        emit leftPaddingChanged();
    if (!qFuzzyCompare(newPadding.right(), oldPadding.right()))
        emit rightPaddingChanged();
    if (!qFuzzyCompare(newPadding.bottom(), oldPadding.bottom()))
        emit bottomPaddingChanged();
    if (!qFuzzyCompare(newVerticalPadding, oldVerticalPadding))
        emit verticalPaddingChanged();
    if (!qFuzzyCompare(newHorizontalPadding, oldHorizontalPadding))
        emit horizontalPaddingChanged();
    if (!qFuzzyCompare(newPadding.top(), oldPadding.top()) || !qFuzzyCompare(newPadding.bottom(), oldPadding.bottom()))
        emit availableHeightChanged();
    if (!qFuzzyCompare(newPadding.left(), oldPadding.left()) || !qFuzzyCompare(newPadding.right(), oldPadding.right()))
        emit availableWidthChanged();
 
    paddingChange(newPadding, oldPadding);
}
 
void QQuickControl::resetPadding()
{
    setPadding(0);
}
 
qreal QQuickControl::topPadding() const
{
    Q_D(const QQuickControl);
    return d->getTopPadding();
}
 
void QQuickControl::setTopPadding(qreal padding)
{
    Q_D(QQuickControl);
    d->setTopPadding(padding);
}
 
void QQuickControl::resetTopPadding()
{
    Q_D(QQuickControl);
    d->setTopPadding(0, true);
}
 
qreal QQuickControl::leftPadding() const
{
    Q_D(const QQuickControl);
    return d->getLeftPadding();
}
 
void QQuickControl::setLeftPadding(qreal padding)
{
    Q_D(QQuickControl);
    d->setLeftPadding(padding);
}
 
void QQuickControl::resetLeftPadding()
{
    Q_D(QQuickControl);
    d->setLeftPadding(0, true);
}
 
qreal QQuickControl::rightPadding() const
{
    Q_D(const QQuickControl);
    return d->getRightPadding();
}
 
void QQuickControl::setRightPadding(qreal padding)
{
    Q_D(QQuickControl);
    d->setRightPadding(padding);
}
 
void QQuickControl::resetRightPadding()
{
    Q_D(QQuickControl);
    d->setRightPadding(0, true);
}
 
qreal QQuickControl::bottomPadding() const
{
    Q_D(const QQuickControl);
    return d->getBottomPadding();
}
 
void QQuickControl::setBottomPadding(qreal padding)
{
    Q_D(QQuickControl);
    d->setBottomPadding(padding);
}
 
void QQuickControl::resetBottomPadding()
{
    Q_D(QQuickControl);
    d->setBottomPadding(0, true);
}
 
qreal QQuickControl::spacing() const
{
    Q_D(const QQuickControl);
    return d->spacing;
}
 
void QQuickControl::setSpacing(qreal spacing)
{
    Q_D(QQuickControl);
    if (qFuzzyCompare(d->spacing, spacing))
        return;
 
    qreal oldSpacing = d->spacing;
    d->spacing = spacing;
    emit spacingChanged();
    spacingChange(spacing, oldSpacing);
}
 
void QQuickControl::resetSpacing()
{
    setSpacing(0);
}
 
QLocale QQuickControl::locale() const
{
    Q_D(const QQuickControl);
    return d->locale;
}
 
void QQuickControl::setLocale(const QLocale &locale)
{
    Q_D(QQuickControl);
    if (d->hasLocale && d->locale == locale)
        return;
 
    d->updateLocale(locale, true); // explicit=true
}
 
void QQuickControl::resetLocale()
{
    Q_D(QQuickControl);
    if (!d->hasLocale)
        return;
 
    d->hasLocale = false;
    d->updateLocale(QQuickControlPrivate::calcLocale(d->parentItem), false); // explicit=false
}
 
bool QQuickControl::isMirrored() const
{
    Q_D(const QQuickControl);
    return d->isMirrored();
}
 
Qt::FocusPolicy QQuickControl::focusPolicy() const
{
    Q_D(const QQuickControl);
    uint policy = d->focusPolicy;
    if (activeFocusOnTab())
        policy |= Qt::TabFocus;
    return static_cast<Qt::FocusPolicy>(policy);
}
 
void QQuickControl::setFocusPolicy(Qt::FocusPolicy policy)
{
    Q_D(QQuickControl);
    if (d->focusPolicy == policy)
        return;
 
    d->focusPolicy = policy;
    setActiveFocusOnTab(policy & Qt::TabFocus);
    emit focusPolicyChanged();
}
 
Qt::FocusReason QQuickControl::focusReason() const
{
    Q_D(const QQuickControl);
    return d->focusReason;
}
 
void QQuickControl::setFocusReason(Qt::FocusReason reason)
{
    Q_D(QQuickControl);
    if (d->focusReason == reason)
        return;
 
    Qt::FocusReason oldReason = d->focusReason;
    d->focusReason = reason;
    emit focusReasonChanged();
    if (isKeyFocusReason(oldReason) != isKeyFocusReason(reason))
        emit visualFocusChanged();
}
 
bool QQuickControl::hasVisualFocus() const
{
    Q_D(const QQuickControl);
    return d->activeFocus && isKeyFocusReason(d->focusReason);
}
 
bool QQuickControl::isHovered() const
{
#if QT_CONFIG(quicktemplates2_hover)
    Q_D(const QQuickControl);
    return d->hovered;
#else
    return false;
#endif
}
 
void QQuickControl::setHovered(bool hovered)
{
#if QT_CONFIG(quicktemplates2_hover)
    Q_D(QQuickControl);
    if (hovered == d->hovered)
        return;
 
    d->hovered = hovered;
    emit hoveredChanged();
    hoverChange();
#else
    Q_UNUSED(hovered);
#endif
}
 
bool QQuickControl::isHoverEnabled() const
{
#if QT_CONFIG(quicktemplates2_hover)
    Q_D(const QQuickControl);
    return d->hoverEnabled;
#else
    return false;
#endif
}
 
void QQuickControl::setHoverEnabled(bool enabled)
{
#if QT_CONFIG(quicktemplates2_hover)
    Q_D(QQuickControl);
    if (d->explicitHoverEnabled && enabled == d->hoverEnabled)
        return;
 
    d->updateHoverEnabled(enabled, true); // explicit=true
#else
    Q_UNUSED(enabled);
#endif
}
 
void QQuickControl::resetHoverEnabled()
{
#if QT_CONFIG(quicktemplates2_hover)
    Q_D(QQuickControl);
    if (!d->explicitHoverEnabled)
        return;
 
    d->explicitHoverEnabled = false;
    d->updateHoverEnabled(QQuickControlPrivate::calcHoverEnabled(d->parentItem), false); // explicit=false
#endif
}
 
bool QQuickControl::isWheelEnabled() const
{
    Q_D(const QQuickControl);
    return d->wheelEnabled;
}
 
void QQuickControl::setWheelEnabled(bool enabled)
{
    Q_D(QQuickControl);
    if (d->wheelEnabled == enabled)
        return;
 
    d->wheelEnabled = enabled;
    emit wheelEnabledChanged();
}
 
QQuickItem *QQuickControl::background() const
{
    QQuickControlPrivate *d = const_cast<QQuickControlPrivate *>(d_func());
    if (!d->background)
        d->executeBackground();
    return d->background;
}
 
void QQuickControl::setBackground(QQuickItem *background)
{
    Q_D(QQuickControl);
    if (d->background == background)
        return;
 
    QQuickControlPrivate::warnIfCustomizationNotSupported(this, background, QStringLiteral("background"));
 
    if (!d->background.isExecuting())
        d->cancelBackground();
 
    const qreal oldImplicitBackgroundWidth = implicitBackgroundWidth();
    const qreal oldImplicitBackgroundHeight = implicitBackgroundHeight();
 
    if (d->extra.isAllocated()) {
        d->extra.value().hasBackgroundWidth = false;
        d->extra.value().hasBackgroundHeight = false;
    }
 
    d->removeImplicitSizeListener(d->background, QQuickControlPrivate::ImplicitSizeChanges | QQuickItemPrivate::Geometry);
    QQuickControlPrivate::hideOldItem(d->background);
    d->background = background;
 
    if (background) {
        background->setParentItem(this);
        if (qFuzzyIsNull(background->z()))
            background->setZ(-1);
        QQuickItemPrivate *p = QQuickItemPrivate::get(background);
        if (p->widthValid() || p->heightValid()) {
            d->extra.value().hasBackgroundWidth = p->widthValid();
            d->extra.value().hasBackgroundHeight = p->heightValid();
        }
        if (isComponentComplete())
            d->resizeBackground();
        d->addImplicitSizeListener(background, QQuickControlPrivate::ImplicitSizeChanges | QQuickItemPrivate::Geometry);
    }
 
    if (!qFuzzyCompare(oldImplicitBackgroundWidth, implicitBackgroundWidth()))
        emit implicitBackgroundWidthChanged();
    if (!qFuzzyCompare(oldImplicitBackgroundHeight, implicitBackgroundHeight()))
        emit implicitBackgroundHeightChanged();
    if (!d->background.isExecuting())
        emit backgroundChanged();
}
 
QQuickItem *QQuickControl::contentItem() const
{
    QQuickControlPrivate *d = const_cast<QQuickControlPrivate *>(d_func());
    if (!d->contentItem)
        d->setContentItem_helper(d->getContentItem(), false);
    return d->contentItem;
}
 
void QQuickControl::setContentItem(QQuickItem *item)
{
    Q_D(QQuickControl);
    d->setContentItem_helper(item, true);
}
 
qreal QQuickControl::baselineOffset() const
{
    Q_D(const QQuickControl);
    return d->baselineOffset;
}
 
void QQuickControl::setBaselineOffset(qreal offset)
{
    Q_D(QQuickControl);
    d->extra.value().hasBaselineOffset = true;
    QQuickItem::setBaselineOffset(offset);
}
 
void QQuickControl::resetBaselineOffset()
{
    Q_D(QQuickControl);
    if (!d->extra.isAllocated() || !d->extra.value().hasBaselineOffset)
        return;
 
    if (d->extra.isAllocated())
        d->extra.value().hasBaselineOffset = false;
    d->updateBaselineOffset();
}
 
qreal QQuickControl::horizontalPadding() const
{
    Q_D(const QQuickControl);
    return d->getHorizontalPadding();
}
 
void QQuickControl::setHorizontalPadding(qreal padding)
{
    Q_D(QQuickControl);
    d->setHorizontalPadding(padding);
}
 
void QQuickControl::resetHorizontalPadding()
{
    Q_D(QQuickControl);
    d->setHorizontalPadding(0, true);
}
 
qreal QQuickControl::verticalPadding() const
{
    Q_D(const QQuickControl);
    return d->getVerticalPadding();
}
 
void QQuickControl::setVerticalPadding(qreal padding)
{
    Q_D(QQuickControl);
    d->setVerticalPadding(padding);
}
 
void QQuickControl::resetVerticalPadding()
{
    Q_D(QQuickControl);
    d->setVerticalPadding(0, true);
}
 
qreal QQuickControl::implicitContentWidth() const
{
    Q_D(const QQuickControl);
    return d->implicitContentWidth;
}
 
qreal QQuickControl::implicitContentHeight() const
{
    Q_D(const QQuickControl);
    return d->implicitContentHeight;
}
 
qreal QQuickControl::implicitBackgroundWidth() const
{
    Q_D(const QQuickControl);
    if (!d->background)
        return 0;
    return d->background->implicitWidth();
}
 
qreal QQuickControl::implicitBackgroundHeight() const
{
    Q_D(const QQuickControl);
    if (!d->background)
        return 0;
    return d->background->implicitHeight();
}
 
qreal QQuickControl::topInset() const
{
    Q_D(const QQuickControl);
    return d->getTopInset();
}
 
void QQuickControl::setTopInset(qreal inset)
{
    Q_D(QQuickControl);
    d->setTopInset(inset);
}
 
void QQuickControl::resetTopInset()
{
    Q_D(QQuickControl);
    d->setTopInset(0, true);
}
 
qreal QQuickControl::leftInset() const
{
    Q_D(const QQuickControl);
    return d->getLeftInset();
}
 
void QQuickControl::setLeftInset(qreal inset)
{
    Q_D(QQuickControl);
    d->setLeftInset(inset);
}
 
void QQuickControl::resetLeftInset()
{
    Q_D(QQuickControl);
    d->setLeftInset(0, true);
}
 
qreal QQuickControl::rightInset() const
{
    Q_D(const QQuickControl);
    return d->getRightInset();
}
 
void QQuickControl::setRightInset(qreal inset)
{
    Q_D(QQuickControl);
    d->setRightInset(inset);
}
 
void QQuickControl::resetRightInset()
{
    Q_D(QQuickControl);
    d->setRightInset(0, true);
}
 
qreal QQuickControl::bottomInset() const
{
    Q_D(const QQuickControl);
    return d->getBottomInset();
}
 
void QQuickControl::setBottomInset(qreal inset)
{
    Q_D(QQuickControl);
    d->setBottomInset(inset);
}
 
void QQuickControl::resetBottomInset()
{
    Q_D(QQuickControl);
    d->setBottomInset(0, true);
}
 
void QQuickControl::classBegin()
{
    Q_D(QQuickControl);
    QQuickItem::classBegin();
    d->resolveFont();
}
 
void QQuickControl::componentComplete()
{
    Q_D(QQuickControl);
    d->executeBackground(true);
    d->executeContentItem(true);
    QQuickItem::componentComplete();
    d->resizeBackground();
    d->resizeContent();
    d->updateBaselineOffset();
    if (!d->hasLocale)
        d->locale = QQuickControlPrivate::calcLocale(d->parentItem);
#if QT_CONFIG(quicktemplates2_hover)
    if (!d->explicitHoverEnabled)
        setAcceptHoverEvents(QQuickControlPrivate::calcHoverEnabled(d->parentItem));
#endif
#if QT_CONFIG(accessibility)
    if (QAccessible::isActive())
        accessibilityActiveChanged(true);
#endif
}
 
QFont QQuickControl::defaultFont() const
{
    return QQuickTheme::font(QQuickTheme::System);
}
 
void QQuickControl::focusInEvent(QFocusEvent *event)
{
    QQuickItem::focusInEvent(event);
    setFocusReason(event->reason());
}
 
void QQuickControl::focusOutEvent(QFocusEvent *event)
{
    QQuickItem::focusOutEvent(event);
    setFocusReason(event->reason());
}
 
#if QT_CONFIG(quicktemplates2_hover)
void QQuickControl::hoverEnterEvent(QHoverEvent *event)
{
    Q_D(QQuickControl);
    setHovered(d->hoverEnabled);
    event->ignore();
}
 
void QQuickControl::hoverMoveEvent(QHoverEvent *event)
{
    Q_D(QQuickControl);
    setHovered(d->hoverEnabled && contains(event->position()));
    event->ignore();
}
 
void QQuickControl::hoverLeaveEvent(QHoverEvent *event)
{
    setHovered(false);
    event->ignore();
}
#endif
 
void QQuickControl::mousePressEvent(QMouseEvent *event)
{
    Q_D(QQuickControl);
    event->setAccepted(d->handlePress(event->position(), event->timestamp()));
}
 
void QQuickControl::mouseMoveEvent(QMouseEvent *event)
{
    Q_D(QQuickControl);
    event->setAccepted(d->handleMove(event->position(), event->timestamp()));
}
 
void QQuickControl::mouseReleaseEvent(QMouseEvent *event)
{
    Q_D(QQuickControl);
    event->setAccepted(d->handleRelease(event->position(), event->timestamp()));
}
 
void QQuickControl::mouseUngrabEvent()
{
    Q_D(QQuickControl);
    d->handleUngrab();
}
 
#if QT_CONFIG(quicktemplates2_multitouch)
void QQuickControl::touchEvent(QTouchEvent *event)
{
    Q_D(QQuickControl);
    switch (event->type()) {
    case QEvent::TouchBegin:
    case QEvent::TouchUpdate:
    case QEvent::TouchEnd:
        for (const QTouchEvent::TouchPoint &point : event->points()) {
            if (!d->acceptTouch(point))
                continue;
 
            switch (point.state()) {
            case QEventPoint::Pressed:
                d->handlePress(point.position(), event->timestamp());
                break;
            case QEventPoint::Updated:
                d->handleMove(point.position(), event->timestamp());
                break;
            case QEventPoint::Released:
                d->handleRelease(point.position(), event->timestamp());
                break;
            default:
                break;
            }
        }
        break;
 
    case QEvent::TouchCancel:
        d->handleUngrab();
        break;
 
    default:
        QQuickItem::touchEvent(event);
        break;
    }
}
 
void QQuickControl::touchUngrabEvent()
{
    Q_D(QQuickControl);
    d->handleUngrab();
}
#endif
 
#if QT_CONFIG(wheelevent)
void QQuickControl::wheelEvent(QWheelEvent *event)
{
    Q_D(QQuickControl);
    if ((d->focusPolicy & Qt::WheelFocus) == Qt::WheelFocus)
        setActiveFocus(this, Qt::MouseFocusReason);
 
    event->setAccepted(d->wheelEnabled);
}
#endif
 
void QQuickControl::geometryChange(const QRectF &newGeometry, const QRectF &oldGeometry)
{
    Q_D(QQuickControl);
    QQuickItem::geometryChange(newGeometry, oldGeometry);
    d->resizeBackground();
    d->resizeContent();
    if (!qFuzzyCompare(newGeometry.width(), oldGeometry.width()))
        emit availableWidthChanged();
    if (!qFuzzyCompare(newGeometry.height(), oldGeometry.height()))
        emit availableHeightChanged();
}
 
void QQuickControl::enabledChange()
{
}
 
void QQuickControl::fontChange(const QFont &newFont, const QFont &oldFont)
{
    Q_UNUSED(newFont);
    Q_UNUSED(oldFont);
}
 
#if QT_CONFIG(quicktemplates2_hover)
void QQuickControl::hoverChange()
{
}
#endif
 
void QQuickControl::mirrorChange()
{
    emit mirroredChanged();
}
 
void QQuickControl::spacingChange(qreal newSpacing, qreal oldSpacing)
{
    Q_UNUSED(newSpacing);
    Q_UNUSED(oldSpacing);
}
 
void QQuickControl::paddingChange(const QMarginsF &newPadding, const QMarginsF &oldPadding)
{
    Q_D(QQuickControl);
    Q_UNUSED(newPadding);
    Q_UNUSED(oldPadding);
    d->resizeContent();
    d->updateBaselineOffset();
}
 
void QQuickControl::contentItemChange(QQuickItem *newItem, QQuickItem *oldItem)
{
    Q_UNUSED(newItem);
    Q_UNUSED(oldItem);
}
 
void QQuickControl::localeChange(const QLocale &newLocale, const QLocale &oldLocale)
{
    Q_UNUSED(newLocale);
    Q_UNUSED(oldLocale);
}
 
void QQuickControl::insetChange(const QMarginsF &newInset, const QMarginsF &oldInset)
{
    Q_D(QQuickControl);
    Q_UNUSED(newInset);
    Q_UNUSED(oldInset);
    d->resizeBackground();
}
 
#if QT_CONFIG(accessibility)
QAccessible::Role QQuickControl::accessibleRole() const
{
    return QAccessible::NoRole;
}
 
void QQuickControl::accessibilityActiveChanged(bool active)
{
    Q_D(QQuickControl);
    if (!active)
        return;
 
    QQuickAccessibleAttached *accessibleAttached = qobject_cast<QQuickAccessibleAttached *>(qmlAttachedPropertiesObject<QQuickAccessibleAttached>(this, true));
    Q_ASSERT(accessibleAttached);
    accessibleAttached->setRole(d->effectiveAccessibleRole());
}
#endif
 
QString QQuickControl::accessibleName() const
{
#if QT_CONFIG(accessibility)
    if (QQuickAccessibleAttached *accessibleAttached = QQuickControlPrivate::accessibleAttached(this))
        return accessibleAttached->name();
#endif
    return QString();
}
 
void QQuickControl::maybeSetAccessibleName(const QString &name)
{
#if QT_CONFIG(accessibility)
    if (QQuickAccessibleAttached *accessibleAttached = QQuickControlPrivate::accessibleAttached(this)) {
        if (!accessibleAttached->wasNameExplicitlySet())
            accessibleAttached->setNameImplicitly(name);
    }
#else
    Q_UNUSED(name);
#endif
}
 
QVariant QQuickControl::accessibleProperty(const char *propertyName)
{
#if QT_CONFIG(accessibility)
    if (QAccessible::isActive())
        return QQuickAccessibleAttached::property(this, propertyName);
#endif
    Q_UNUSED(propertyName);
    return QVariant();
}
 
bool QQuickControl::setAccessibleProperty(const char *propertyName, const QVariant &value)
{
#if QT_CONFIG(accessibility)
    if (QAccessible::isActive())
        return QQuickAccessibleAttached::setProperty(this, propertyName, value);
#endif
    Q_UNUSED(propertyName);
    Q_UNUSED(value);
    return false;
}
 
QT_END_NAMESPACE
 
#include "moc_qquickcontrol_p.cpp"