1 files changed, 62 insertions, 0 deletions
diff --git a/src/quicknativestyle/items/qquickstyleitemcombobox.cpp b/src/quicknativestyle/items/qquickstyleitemcombobox.cpp
new file mode 100644
index 0000000000..92f29c7d84
--- /dev/null
+++ b/src/quicknativestyle/items/qquickstyleitemcombobox.cpp
@@ -0,0 +1,62 @@
+// 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"