Say hello to the Fusion style

[ChangeLog][Controls] Introduced a Fusion style that offers
a platform agnostic desktop-oriented look'n'feel.

Change-Id: Id1c1baf10f4b3a79e89bcc72f6d170ed0b2cc8b0
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

1 files changed, 92 insertions, 0 deletions

diff --git a/src/imports/controls/fusion/CheckIndicator.qml b/src/imports/controls/fusion/CheckIndicator.qml
new file mode 100644
index 00000000..54175205
--- /dev/null
+++ b/src/imports/controls/fusion/CheckIndicator.qml
@@ -0,0 +1,92 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.9
+import QtQuick.Controls 2.3
+import QtQuick.Controls.impl 2.3
+import QtQuick.Controls.Fusion 2.3
+import QtQuick.Controls.Fusion.impl 2.3
+
+Rectangle {
+    id: indicator
+
+    property Item control
+    readonly property color pressedColor: Fusion.mergedColors(control.palette.base, control.palette.windowText, 85)
+    readonly property color checkMarkColor: Qt.darker(control.palette.text, 1.2)
+
+    implicitWidth: 14
+    implicitHeight: 14
+
+    color: control.down ? indicator.pressedColor : control.palette.base
+    border.color: control.visualFocus ? Fusion.highlightedOutline(control.palette)
+                                      : Qt.lighter(Fusion.outline(control.palette), 1.1)
+
+    Rectangle {
+        x: 1; y: 1
+        width: parent.width - 2
+        height: 1
+        color: Fusion.topShadow
+        visible: control.enabled && !control.down
+    }
+
+    ColorImage {
+        x: (parent.width - width) / 2
+        y: (parent.height - height) / 2
+        color: Color.transparent(indicator.checkMarkColor, 210 / 255)
+        source: "qrc:/qt-project.org/imports/QtQuick/Controls.2/Fusion/images/checkmark.png"
+        visible: control.checkState === Qt.Checked || (control.checked && control.checkState === undefined)
+    }
+
+    Rectangle {
+        x: 3; y: 3
+        width: parent.width - 6
+        height: parent.width - 6
+
+        visible: control.checkState === Qt.PartiallyChecked
+
+        gradient: Gradient {
+            GradientStop {
+                position: 0
+                color: Color.transparent(indicator.checkMarkColor, 80 / 255)
+            }
+            GradientStop {
+                position: 1
+                color: Color.transparent(indicator.checkMarkColor, 140 / 255)
+            }
+        }
+        border.color: Color.transparent(indicator.checkMarkColor, 180 / 255)
+    }
+}