Warning, /graphics/kphotoalbum/AndroidRemoteControl/qml/ScrollBar.qml is written in an unsupported language. File is not indexed.

 /* SPDX-FileCopyrightText: 2014 Jesper K. Pedersen <blackie@kde.org>
 
    SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 // Code based on http://stackoverflow.com/questions/17833103/how-to-create-scrollbar-in-qtquick-2-0
 import QtQuick 2.0;
 
 Item {
     id: scrollbar;
     width: (handleSize + 2 * (backScrollbar.border.width +1));
     visible: (flickable.visibleArea.heightRatio < 1.0);
     anchors {
         top: flickable.top;
         right: flickable.right;
         bottom: flickable.bottom;
         margins: 1;
     }
 
     property Flickable flickable               : null;
     property int       handleSize              : 20;
 
     function scrollDown () {
         flickable.contentY = Math.min (flickable.contentY + (flickable.height / 4), flickable.contentHeight - flickable.height);
     }
     function scrollUp () {
         flickable.contentY = Math.max (flickable.contentY - (flickable.height / 4), 0);
     }
 
    Binding {
         target: handle;
         property: "y";
         value: (flickable.contentY * clicker.drag.maximumY / (flickable.contentHeight - flickable.height));
         when: (!clicker.drag.active);
     }
     Binding {
         target: flickable;
         property: "contentY";
         value: (handle.y * (flickable.contentHeight - flickable.height) / clicker.drag.maximumY);
         when: (clicker.drag.active || clicker.pressed);
     }
     Rectangle {
         id: backScrollbar;
         radius: 2;
         antialiasing: true;
         color: Qt.rgba(0.5, 0.5, 0.5, 0.85);
         border {
             width: 1;
             color: "darkgray";
         }
         anchors { fill: parent; }
 
         MouseArea {
             anchors.fill: parent;
             onClicked: { }
         }
     }
     MouseArea {
         id: btnUp;
         height: width;
         anchors {
             top: parent.top;
             left: parent.left;
             right: parent.right;
             margins: (backScrollbar.border.width +1);
         }
         onClicked: { scrollUp (); }
 
         Text {
             text: "V";
             color: (btnUp.pressed ? "blue" : "black");
             rotation: -180;
             anchors.centerIn: parent;
         }
     }
     MouseArea {
         id: btnDown;
         height: width;
         anchors {
             left: parent.left;
             right: parent.right;
             bottom: parent.bottom;
             margins: (backScrollbar.border.width +1);
         }
         onClicked: { scrollDown (); }
 
         Text {
             text: "V";
             color: (btnDown.pressed ? "blue" : "black");
             anchors.centerIn: parent;
         }
     }
     Item {
         id: groove;
         clip: true;
         anchors {
             fill: parent;
             topMargin: (backScrollbar.border.width +1 + btnUp.height +1);
             leftMargin: (backScrollbar.border.width +1);
             rightMargin: (backScrollbar.border.width +1);
             bottomMargin: (backScrollbar.border.width +1 + btnDown.height +1);
         }
 
         MouseArea {
             id: clicker;
             drag {
                 target: handle;
                 minimumY: 0;
                 maximumY: (groove.height - handle.height);
                 axis: Drag.YAxis;
             }
             anchors { fill: parent; }
             onClicked: { flickable.contentY = (mouse.y / groove.height * (flickable.contentHeight - flickable.height)); }
         }
         Item {
             id: handle;
             height: Math.max (20, (flickable.visibleArea.heightRatio * groove.height));
             anchors {
                 left: parent.left;
                 right: parent.right;
             }
 
             Rectangle {
                 id: backHandle;
                 color: (clicker.pressed ? "blue" : "black");
                 opacity: (flickable.moving ? 0.65 : 0.35);
                 anchors { fill: parent; }
 
                 Behavior on opacity { NumberAnimation { duration: 150; } }
             }
         }
     }
 }