examples/declarative/ui-components/scrollbar/ScrollBar.qml
changeset 30 5dc02b23752f
child 33 3e2da88830cd
equal deleted inserted replaced
29:b72c6db6890b 30:5dc02b23752f
       
     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the QtDeclarative module of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:BSD$
       
    10 ** You may use this file under the terms of the BSD license as follows:
       
    11 **
       
    12 ** "Redistribution and use in source and binary forms, with or without
       
    13 ** modification, are permitted provided that the following conditions are
       
    14 ** met:
       
    15 **   * Redistributions of source code must retain the above copyright
       
    16 **     notice, this list of conditions and the following disclaimer.
       
    17 **   * Redistributions in binary form must reproduce the above copyright
       
    18 **     notice, this list of conditions and the following disclaimer in
       
    19 **     the documentation and/or other materials provided with the
       
    20 **     distribution.
       
    21 **   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
       
    22 **     the names of its contributors may be used to endorse or promote
       
    23 **     products derived from this software without specific prior written
       
    24 **     permission.
       
    25 **
       
    26 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
       
    27 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
       
    28 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
       
    29 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
       
    30 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
       
    31 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
       
    32 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
       
    33 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
       
    34 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
       
    35 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
       
    36 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
       
    37 ** $QT_END_LICENSE$
       
    38 **
       
    39 ****************************************************************************/
       
    40 
       
    41 import Qt 4.7
       
    42 
       
    43 Item {
       
    44     id: scrollBar
       
    45 
       
    46     // The properties that define the scrollbar's state.
       
    47     // position and pageSize are in the range 0.0 - 1.0.  They are relative to the
       
    48     // height of the page, i.e. a pageSize of 0.5 means that you can see 50%
       
    49     // of the height of the view.
       
    50     // orientation can be either Qt.Vertical or Qt.Horizontal
       
    51     property real position
       
    52     property real pageSize
       
    53     property variant orientation : Qt.Vertical
       
    54 
       
    55     // A light, semi-transparent background
       
    56     Rectangle {
       
    57         id: background
       
    58         anchors.fill: parent
       
    59         radius: orientation == Qt.Vertical ? (width/2 - 1) : (height/2 - 1)
       
    60         color: "white"
       
    61         opacity: 0.3
       
    62     }
       
    63     // Size the bar to the required size, depending upon the orientation.
       
    64     Rectangle {
       
    65         x: orientation == Qt.Vertical ? 1 : (scrollBar.position * (scrollBar.width-2) + 1)
       
    66         y: orientation == Qt.Vertical ? (scrollBar.position * (scrollBar.height-2) + 1) : 1
       
    67         width: orientation == Qt.Vertical ? (parent.width-2) : (scrollBar.pageSize * (scrollBar.width-2))
       
    68         height: orientation == Qt.Vertical ? (scrollBar.pageSize * (scrollBar.height-2)) : (parent.height-2)
       
    69         radius: orientation == Qt.Vertical ? (width/2 - 1) : (height/2 - 1)
       
    70         color: "black"
       
    71         opacity: 0.7
       
    72     }
       
    73 }