1 files changed, 88 insertions, 0 deletions
diff --git a/src/quicknativestyle/items/qquickstyleitemdial.cpp b/src/quicknativestyle/items/qquickstyleitemdial.cpp
new file mode 100644
index 0000000000..fe36f866e4
--- /dev/null
+++ b/src/quicknativestyle/items/qquickstyleitemdial.cpp
@@ -0,0 +1,88 @@
+// 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 "qquickstyleitemdial.h"
+
+QT_BEGIN_NAMESPACE
+
+QFont QQuickStyleItemDial::styleFont(QQuickItem *control) const
+{
+    return style()->font(QStyle::CE_ProgressBarLabel, controlSize(control));
+}
+
+void QQuickStyleItemDial::connectToControl() const
+{
+    QQuickStyleItem::connectToControl();
+    auto dial = control<QQuickDial>();
+    connect(dial, &QQuickDial::fromChanged, this, &QQuickStyleItem::markImageDirty);
+    connect(dial, &QQuickDial::toChanged, this, &QQuickStyleItem::markImageDirty);
+    connect(dial, &QQuickDial::positionChanged, this, &QQuickStyleItem::markImageDirty);
+    connect(dial, &QQuickDial::valueChanged, this, &QQuickStyleItem::markImageDirty);
+    connect(dial, &QQuickDial::stepSizeChanged, this, &QQuickStyleItem::markImageDirty);
+    connect(dial, &QQuickDial::startAngleChanged, this, &QQuickStyleItem::markImageDirty);
+    connect(dial, &QQuickDial::endAngleChanged, this, &QQuickStyleItem::markImageDirty);
+    connect(dial, &QQuickDial::pressedChanged, this, &QQuickStyleItem::markImageDirty);
+}
+
+StyleItemGeometry QQuickStyleItemDial::calculateGeometry()
+{
+    QStyleOptionSlider styleOption;
+    initStyleOption(styleOption);
+
+    StyleItemGeometry geometry;
+    geometry.minimumSize = style()->sizeFromContents(QStyle::CT_Dial, &styleOption, QSize(0, 0));
+    geometry.implicitSize = geometry.minimumSize;
+    geometry.layoutRect = style()->subElementRect(QStyle::SE_SliderLayoutItem, &styleOption);
+    geometry.ninePatchMargins = style()->ninePatchMargins(QStyle::CC_Dial, &styleOption, geometry.minimumSize);
+    geometry.focusFrameRadius = style()->pixelMetric(QStyle::PM_DialFocusFrameRadius, &styleOption);
+
+    return geometry;
+}
+
+void QQuickStyleItemDial::paintEvent(QPainter *painter) const
+{
+    QStyleOptionSlider styleOption;
+    initStyleOption(styleOption);
+    style()->drawComplexControl(QStyle::CC_Dial, &styleOption, painter);
+}
+
+void QQuickStyleItemDial::initStyleOption(QStyleOptionSlider &styleOption) const
+{
+    initStyleOptionBase(styleOption);
+    auto dial = control<QQuickDial>();
+
+    styleOption.subControls = QStyle::SC_SliderGroove | QStyle::SC_SliderHandle;
+    styleOption.activeSubControls = QStyle::SC_None;
+    styleOption.tickInterval = dial->stepSize();
+    styleOption.dialWrapping = dial->wrap();
+    styleOption.upsideDown = true;
+    styleOption.startAngle = dial->startAngle();
+    styleOption.endAngle = dial->endAngle();
+
+    if (dial->isPressed())
+        styleOption.state |= QStyle::State_Sunken;
+
+    if (dial->stepSize() == 0) {
+        styleOption.minimum = 0;
+        styleOption.maximum = 10000;
+        styleOption.sliderPosition = dial->position() * styleOption.maximum;
+    } else {
+        styleOption.minimum = dial->from();
+        styleOption.maximum = dial->to();
+        styleOption.sliderPosition = dial->value();
+    }
+
+    // TODO: add proper API for tickmarks
+    const int index = dial->metaObject()->indexOfProperty("qqc2_style_tickPosition");
+    if (index != -1) {
+        const int tickPosition = dial->metaObject()->property(index).read(dial).toInt();
+        styleOption.tickPosition = QStyleOptionSlider::TickPosition(tickPosition);
+        if (styleOption.tickPosition != QStyleOptionSlider::NoTicks)
+            styleOption.subControls |= QStyle::SC_DialTickmarks;
+    }
+
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qquickstyleitemdial.cpp"