1 files changed, 62 insertions, 0 deletions
diff --git a/src/quicknativestyle/items/qquickstyleitembutton.cpp b/src/quicknativestyle/items/qquickstyleitembutton.cpp
new file mode 100644
index 0000000000..20c8b8f3d3
--- /dev/null
+++ b/src/quicknativestyle/items/qquickstyleitembutton.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 "qquickstyleitembutton.h"
+
+QT_BEGIN_NAMESPACE
+
+QFont QQuickStyleItemButton::styleFont(QQuickItem *control) const
+{
+    return style()->font(QStyle::CE_PushButtonLabel, controlSize(control));
+}
+
+void QQuickStyleItemButton::connectToControl() const
+{
+    QQuickStyleItem::connectToControl();
+    auto button = control<QQuickButton>();
+    connect(button, &QQuickButton::downChanged, this, &QQuickStyleItem::markImageDirty);
+    connect(button, &QQuickButton::checkedChanged, this, &QQuickStyleItem::markImageDirty);
+}
+
+StyleItemGeometry QQuickStyleItemButton::calculateGeometry()
+{
+    QStyleOptionButton styleOption;
+    initStyleOption(styleOption);
+    StyleItemGeometry geometry;
+
+    geometry.minimumSize = style()->sizeFromContents(QStyle::CT_PushButton, &styleOption, QSize(0, 0));
+    geometry.implicitSize = style()->sizeFromContents(QStyle::CT_PushButton, &styleOption, contentSize());
+    styleOption.rect = QRect(QPoint(0, 0), geometry.implicitSize);
+    geometry.contentRect = style()->subElementRect(QStyle::SE_PushButtonContents, &styleOption);
+    geometry.layoutRect = style()->subElementRect(QStyle::SE_PushButtonLayoutItem, &styleOption);
+    geometry.ninePatchMargins = style()->ninePatchMargins(QStyle::CE_PushButtonBevel, &styleOption, geometry.minimumSize);
+    geometry.focusFrameRadius = style()->pixelMetric(QStyle::PM_PushButtonFocusFrameRadius, &styleOption);
+
+    return geometry;
+}
+
+void QQuickStyleItemButton::paintEvent(QPainter *painter) const
+{
+    QStyleOptionButton styleOption;
+    initStyleOption(styleOption);
+    style()->drawControl(QStyle::CE_PushButtonBevel, &styleOption, painter);
+}
+
+void QQuickStyleItemButton::initStyleOption(QStyleOptionButton &styleOption) const
+{
+    initStyleOptionBase(styleOption);
+    auto button = control<QQuickButton>();
+
+    if (button->isDown())
+        styleOption.state |= QStyle::State_Sunken;
+    if (!button->isFlat() && !button->isDown())
+        styleOption.state |= QStyle::State_Raised;
+    if (button->isHighlighted() || button->isChecked())
+        styleOption.state |= QStyle::State_On;
+    if (button->isFlat())
+        styleOption.features |= QStyleOptionButton::Flat;
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qquickstyleitembutton.cpp"