qquickstyleitemcombobox.cpp

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// Copyright (C) 2020 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 "qquickstyleitemcombobox.h"
 
QT_BEGIN_NAMESPACE
 
QFont QQuickStyleItemComboBox::styleFont(QQuickItem *control) const
{
    return style()->font(QStyle::CE_PushButtonLabel, controlSize(control));
}
 
void QQuickStyleItemComboBox::connectToControl() const
{
    QQuickStyleItem::connectToControl();
    auto comboBox = control<QQuickComboBox>();
    connect(comboBox, &QQuickComboBox::downChanged, this, &QQuickStyleItem::markImageDirty);
}
 
StyleItemGeometry QQuickStyleItemComboBox::calculateGeometry()
{
    QStyleOptionComboBox styleOption;
    initStyleOption(styleOption);
    StyleItemGeometry geometry;
 
    geometry.minimumSize = style()->sizeFromContents(QStyle::CT_ComboBox, &styleOption, QSize(0, 0));
    geometry.implicitSize = style()->sizeFromContents(QStyle::CT_ComboBox, &styleOption, contentSize());
    styleOption.rect = QRect(QPoint(0, 0), geometry.implicitSize);
    geometry.contentRect = style()->subControlRect(QStyle::CC_ComboBox, &styleOption, QStyle::SC_ComboBoxEditField);
    geometry.layoutRect = style()->subElementRect(QStyle::SE_ComboBoxLayoutItem, &styleOption);
    geometry.ninePatchMargins = style()->ninePatchMargins(QStyle::CC_ComboBox, &styleOption, geometry.minimumSize);
    geometry.focusFrameRadius = style()->pixelMetric(QStyle::PM_ComboBoxFocusFrameRadius, &styleOption);
 
    return geometry;
}
 
void QQuickStyleItemComboBox::paintEvent(QPainter *painter) const
{
    QStyleOptionComboBox styleOption;
    initStyleOption(styleOption);
    style()->drawComplexControl(QStyle::CC_ComboBox, &styleOption, painter);
}
 
void QQuickStyleItemComboBox::initStyleOption(QStyleOptionComboBox &styleOption) const
{
    initStyleOptionBase(styleOption);
    auto comboBox = control<QQuickComboBox>();
 
    styleOption.subControls = QStyle::SC_ComboBoxArrow | QStyle::SC_ComboBoxFrame | QStyle::SC_ComboBoxEditField;
    styleOption.frame = true;
    styleOption.state |= QStyle::State_Selected;
    styleOption.editable = comboBox->isEditable();
 
    if (comboBox->isDown())
        styleOption.state |= QStyle::State_Sunken;
    if (!comboBox->isFlat() && !comboBox->isDown())
        styleOption.state |= QStyle::State_Raised;
}
 
QT_END_NAMESPACE
 
#include "moc_qquickstyleitemcombobox.cpp"