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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
import QtQuick 1.0
// scrollbar for the items view
Item {
id: bar
// public
property variant flickable
function scroll(delta) {
handle.y = Math.max(0, Math.min(scrollHeight, handle.y + delta))
}
function reset() {
handle.y = 0
}
// internal
ItemsViewStyle { id: style }
onFlickableChanged: reset()
property int scrollHeight: height - handle.height
clip: true
Rectangle {
anchors.top: parent.top
anchors.topMargin: 2
anchors.bottom: parent.bottom
anchors.bottomMargin: 3
anchors.horizontalCenter: parent.horizontalCenter
width: 6
radius: 3
color: style.scrollbarColor
border.width: 1
border.color: style.scrollbarBorderColor
}
function updateHandle() {
handle.updateFlickable = false
if (flickable)
handle.y = scrollHeight * Math.min(
flickable.contentY / (flickable.contentHeight - flickable.height),
1)
else
handle.y = 0
handle.updateFlickable = true
}
onHeightChanged: updateHandle()
Connections {
target: flickable
onHeightChanged: updateHandle()
}
Connections {
target: flickable
onContentHeightChanged: updateHandle()
}
Connections {
target: flickable
onContentYChanged: updateHandle()
}
MouseArea {
anchors.left: parent.left
anchors.right: parent.right
anchors.top: parent.top
anchors.bottom: handle.top
onClicked: scroll(-style.scrollbarClickScrollAmount)
}
Item {
id: handle
anchors.left: parent.left
anchors.right: parent.right
height: Math.max(width, bar.height * Math.min(1, flickable.height / flickable.contentHeight))
property bool updateFlickable: true
onYChanged: {
if (updateFlickable)
flickable.contentY = Math.max(0, flickable.contentHeight * y / bar.height)
}
Rectangle {
width: parent.height
height: parent.width
y: -height - 2
x: -2
rotation: 90
transformOrigin: Item.BottomLeft
border.color: style.scrollbarBorderColor
border.width: 1
radius: 3
gradient: Gradient {
GradientStop { position: 0.15; color: style.scrollbarGradientStartColor }
GradientStop { position: 0.78; color: style.scrollbarGradientMiddleColor }
GradientStop { position: 0.80; color: style.scrollbarGradientEndColor }
}
}
MouseArea {
anchors.fill: parent
drag.target: parent
drag.axis: "YAxis"
drag.minimumY: 0
drag.maximumY: scrollHeight
}
}
MouseArea {
anchors.left: parent.left
anchors.right: parent.right
anchors.top: handle.bottom
anchors.bottom: parent.bottom
onClicked: scroll(style.scrollbarClickScrollAmount)
}
}
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