Slider.qml Example File

 /****************************************************************************
 **
 ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the QtDeclarative module of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** GNU Lesser General Public License Usage
 ** 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, Nokia gives you certain additional
 ** rights. These rights are described in the Nokia Qt LGPL Exception
 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
 **
 ** GNU General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU General
 ** Public License version 3.0 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 3.0 requirements will be met:
 ** http://www.gnu.org/copyleft/gpl.html.
 **
 ** Other Usage
 ** Alternatively, this file may be used in accordance with the terms and
 ** conditions contained in a signed written agreement between you and Nokia.
 **
 **
 **
 **
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 import QtQuick 1.0

 Item {
     id: slider; width: 400; height: 16

     // value is read/write.
     property real value: 1
     onValueChanged: updatePos();
     property real maximum: 1
     property real minimum: 1
     property int xMax: width - handle.width - 4
     onXMaxChanged: updatePos();
     onMinimumChanged: updatePos();

     function updatePos() {
         if (maximum > minimum) {
             var pos = 2 + (value - minimum) * slider.xMax / (maximum - minimum);
             pos = Math.min(pos, width - handle.width - 2);
             pos = Math.max(pos, 2);
             handle.x = pos;
         } else {
             handle.x = 2;
         }
     }

     Rectangle {
         anchors.fill: parent
         border.color: "white"; border.width: 0; radius: 8
         gradient: Gradient {
             GradientStop { position: 0.0; color: "#66343434" }
             GradientStop { position: 1.0; color: "#66000000" }
         }
     }

     Rectangle {
         id: handle; smooth: true
         y: 2; width: 30; height: slider.height-4; radius: 6
         gradient: Gradient {
             GradientStop { position: 0.0; color: "lightgray" }
             GradientStop { position: 1.0; color: "gray" }
         }

         MouseArea {
             id: mouse
             anchors.fill: parent; drag.target: parent
             drag.axis: Drag.XAxis; drag.minimumX: 2; drag.maximumX: slider.xMax+2
             onPositionChanged: { value = (maximum - minimum) * (handle.x-2) / slider.xMax + minimum; }
         }
     }
 }