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-/****************************************************************************
-**
-** Copyright (C) 2017 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** 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 https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of The Qt Company Ltd nor the names of its
-** contributors may be used to endorse or promote products derived
-** from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-import QtQuick 2.2
-
-Item {
- id: container
-
- property variant scrollArea
- property int orientation: Qt.Vertical
-
- opacity: 0
-
- function position()
- {
- var ny = 0;
- if (container.orientation == Qt.Vertical)
- ny = scrollArea.visibleArea.yPosition * container.height;
- else
- ny = scrollArea.visibleArea.xPosition * container.width;
-
- if (ny > 2)
- return ny;
- else
- return 2;
- }
-
- function size()
- {
- var nh, ny;
-
- if (container.orientation == Qt.Vertical)
- nh = scrollArea.visibleArea.heightRatio * container.height;
- else
- nh = scrollArea.visibleArea.widthRatio * container.width;
-
- if (container.orientation == Qt.Vertical)
- ny = scrollArea.visibleArea.yPosition * container.height;
- else
- ny = scrollArea.visibleArea.xPosition * container.width;
-
- if (ny > 3) {
- var t;
- if (container.orientation == Qt.Vertical)
- t = Math.ceil(container.height - 3 - ny);
- else
- t = Math.ceil(container.width - 3 - ny);
- if (nh > t)
- return t;
- else
- return nh;
- } else
- return nh + ny;
- }
-
- Rectangle { anchors.fill: parent; color: "Black"; opacity: 0.3 }
-
- BorderImage {
- source: "images/scrollbar.png"
- border { left: 1; right: 1; top: 1; bottom: 1 }
- x: container.orientation == Qt.Vertical ? 2 : position()
- y: container.orientation == Qt.Vertical ? position() : 2
- width: container.orientation == Qt.Vertical ? container.width - 4 : size()
- height: container.orientation == Qt.Vertical ? size() : container.height - 4
- }
-
- states: State {
- name: "visible"
- when: container.orientation == Qt.Vertical ?
- scrollArea.movingVertically :
- scrollArea.movingHorizontally
- PropertyChanges { target: container; opacity: 1.0 }
- }
-
- transitions: Transition {
- from: "visible"; to: ""
- NumberAnimation { properties: "opacity"; duration: 600 }
- }
-}