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mirror of https://github.com/monero-project/monero-gui synced 2024-11-22 12:14:00 +01:00
monero-gui/components/Scroll.qml
2018-03-29 23:04:03 +01:00

85 lines
3.0 KiB
QML

// Copyright (c) 2014-2018, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. 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.
//
// 3. Neither the name of the copyright holder 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 HOLDER 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.
import QtQuick 2.0
Item {
id: scrollItem
property var flickable
width: 15
z: 1
function flickableContentYChanged() {
if(flickable === undefined)
return
var t = flickable.height - scroll.height
scroll.y = (flickable.contentY / (flickable.contentHeight - flickable.height)) * t
}
MouseArea {
id: scrollArea
anchors.fill: parent
hoverEnabled: true
}
Rectangle {
id: scroll
width: 4
height: {
var t = (flickable.height * flickable.height) / flickable.contentHeight
return t < 20 ? 20 : t
}
y: 0; x: 0
color: "#DBDBDB"
opacity: flickable.moving || handleArea.pressed || scrollArea.containsMouse ? 0.5 : 0
visible: flickable.contentHeight > flickable.height
Behavior on opacity {
NumberAnimation { duration: 200; easing.type: Easing.InQuad }
}
MouseArea {
id: handleArea
anchors.fill: parent
drag.target: scroll
drag.axis: Drag.YAxis
drag.minimumY: 0
drag.maximumY: flickable.height - height
propagateComposedEvents: true
onPositionChanged: {
if(!pressed) return
var dy = scroll.y / (flickable.height - scroll.height)
flickable.contentY = (flickable.contentHeight - flickable.height) * dy
}
}
}
}