| /**************************************************************************** |
| ** |
| ** Copyright (C) 2017 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the test suite of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL-EXCEPT$ |
| ** Commercial License Usage |
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| ** GNU General Public License Usage |
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| ** General Public License version 3 as published by the Free Software |
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| ****************************************************************************/ |
| |
| import QtQuick 2.12 |
| |
| Item { |
| id: root |
| objectName: label |
| property int value: 50 |
| property int maximumValue: 99 |
| property alias label: label.text |
| property alias tapEnabled: tap.enabled |
| property alias pressed: tap.pressed |
| signal tapped |
| width: 140 |
| height: 400 |
| |
| Rectangle { |
| id: slot |
| anchors.top: parent.top |
| anchors.bottom: parent.bottom |
| anchors.margins: 10 |
| anchors.topMargin: 30 |
| anchors.bottomMargin: 30 |
| anchors.horizontalCenter: parent.horizontalCenter |
| width: 10 |
| color: "black" |
| radius: width / 2 |
| smooth: true |
| } |
| |
| Rectangle { |
| id: glow |
| anchors.fill: knob |
| anchors.margins: -5 |
| anchors.leftMargin: -2 |
| anchors.horizontalCenterOffset: 1 |
| radius: 5 |
| color: "#4400FFFF" |
| opacity: tap.pressed || tapFlash.running ? 1 : 0 |
| FlashAnimation on visible { |
| id: tapFlash |
| } |
| } |
| Rectangle { |
| id: knob |
| objectName: root.label + " Knob" |
| width: parent.width - 2 |
| height: 30 |
| radius: 5 |
| color: "darkgray" |
| border.color: "black" |
| property bool programmatic: false |
| property real multiplier: root.maximumValue / (dragHandler.yAxis.maximum - dragHandler.yAxis.minimum) |
| onYChanged: if (!programmatic) root.value = root.maximumValue - (knob.y - dragHandler.yAxis.minimum) * multiplier |
| transformOrigin: Item.Center |
| function setValue(value) { knob.y = dragHandler.yAxis.maximum - value / knob.multiplier } |
| function flash() { tapFlash.start() } |
| DragHandler { |
| id: dragHandler |
| objectName: label.text + " DragHandler" |
| xAxis.enabled: false |
| yAxis.minimum: slot.y |
| yAxis.maximum: slot.height + slot.y - knob.height |
| } |
| TapHandler { |
| id: tap |
| objectName: label.text + " TapHandler" |
| gesturePolicy: TapHandler.DragThreshold |
| onTapped: { |
| tapFlash.start() |
| root.tapped |
| } |
| } |
| } |
| |
| Text { |
| font.pointSize: 16 |
| color: "red" |
| anchors.bottom: parent.bottom |
| anchors.horizontalCenter: parent.horizontalCenter |
| text: root.value |
| } |
| |
| Text { |
| id: label |
| font.pointSize: 12 |
| color: "red" |
| anchors.top: parent.top |
| anchors.topMargin: 5 |
| anchors.horizontalCenter: parent.horizontalCenter |
| } |
| |
| Component.onCompleted: { |
| knob.programmatic = true |
| knob.setValue(root.value) |
| knob.programmatic = false |
| } |
| } |