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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import QtQuick
import QtQuick.Scene3D
import QtQuick.Layouts
import QtMultimedia
Item {
id: mainview
width: 1215
height: 720
visible: true
property bool isHoverEnabled: false
property variant magnitudeArray: null
property int millisecondsPerBar: 68
property string magnitudeDataSourceFile: "qrc:/music/visualization.raw"
property int mediaLatencyOffset: 68
state: "stopped"
states: [
State {
name: "playing"
PropertyChanges {
target: playButtonImage
source: {
if (playButtonMouseArea.containsMouse)
"qrc:/images/pausehoverpressed.png"
else
"qrc:/images/pausenormal.png"
}
}
PropertyChanges {
target: stopButtonImage
source: "qrc:/images/stopnormal.png"
}
},
State {
name: "paused"
PropertyChanges {
target: playButtonImage
source: {
if (playButtonMouseArea.containsMouse)
"qrc:/images/playhoverpressed.png"
else
"qrc:/images/playnormal.png"
}
}
PropertyChanges {
target: stopButtonImage
source: "qrc:/images/stopnormal.png"
}
},
State {
name: "stopped"
PropertyChanges {
target: playButtonImage
source: "qrc:/images/playnormal.png"
}
PropertyChanges {
target: stopButtonImage
source: "qrc:/images/stopdisabled.png"
}
}
]
Component.onCompleted: isHoverEnabled = touchSettings.isHoverEnabled()
//![0]
MediaPlayer {
id: mediaPlayer
source: "qrc:/music/tiltshifted_lost_neon_sun.mp3"
audioOutput: AudioOutput {}
//![0]
onMediaStatusChanged: {
if (mediaStatus == MediaPlayer.EndOfMedia) {
mainview.state = "stopped"
} else if (mediaStatus == MediaPlayer.LoadedMedia && !visualizer.started) {
// Load the pre-calculated magnitude data for the visualizer
var request = new XMLHttpRequest()
request.responseType = 'arraybuffer'
request.onreadystatechange = function() {
if (request.readyState === XMLHttpRequest.DONE) {
if (request.status == 200 || request.status == 0) {
var arrayBuffer = request.response
if (arrayBuffer) {
magnitudeArray = new Uint16Array(arrayBuffer)
visualizer.startVisualization()
}
} else {
console.warn("Couldn't load magnitude data for bars.")
}
request = null
}
};
request.open('GET', magnitudeDataSourceFile, true)
request.send(null)
}
}
onErrorStringChanged: console.error("error with audio " + errorString)
function getNextAudioLevel(offsetMs) {
if (magnitudeArray === null)
return 0.0;
// Calculate the integer index position in to the magnitude array
var index = ((mediaPlayer.position + offsetMs) /
mainview.millisecondsPerBar) | 0;
if (index < 0 || index >= magnitudeArray.length)
return 0.0;
return (magnitudeArray[index] / 63274.0);
}
}
Image {
id: coverImage
anchors.fill: parent
source: "qrc:/images/albumcover.png"
}
//![1]
Scene3D {
anchors.fill: parent
Visualizer {
id: visualizer
animationState: mainview.state
numberOfBars: 120
barRotationTimeMs: 8160 // 68 ms per bar
}
}
//![1]
Rectangle {
id: blackBottomRect
color: "black"
width: parent.width
height: 0.14 * mainview.height
anchors.bottom: parent.bottom
}
// Duration of played content
Text {
text: formatDuration(mediaPlayer.position)
color: "#80C342"
x: parent.width / 6
y: mainview.height - mainview.height / 8
font.pixelSize: 12
}
// Duration of the content left
Text {
text: "-" + formatDuration(mediaPlayer.duration - mediaPlayer.position)
color: "#80C342"
x: parent.width - parent.width / 6
y: mainview.height - mainview.height / 8
font.pixelSize: 12
}
function formatDuration(milliseconds) {
var minutes = Math.floor(milliseconds / 60000)
milliseconds -= minutes * 60000
var seconds = milliseconds / 1000
seconds = Math.round(seconds)
if (seconds < 10)
return minutes + ":0" + seconds
else
return minutes + ":" + seconds
}
property int buttonHorizontalMargin: 10
Rectangle {
id: playButton
height: 54
width: 54
anchors.bottom: parent.bottom
anchors.bottomMargin: width
x: parent.width / 2 - width - buttonHorizontalMargin
color: "transparent"
Image {
id: playButtonImage
source: "qrc:/images/pausenormal.png"
}
MouseArea {
id: playButtonMouseArea
anchors.fill: parent
hoverEnabled: isHoverEnabled
onClicked: {
if (mainview.state == 'paused' || mainview.state == 'stopped')
mainview.state = 'playing'
else
mainview.state = 'paused'
}
onEntered: {
if (mainview.state == 'playing')
playButtonImage.source = "qrc:/images/pausehoverpressed.png"
else
playButtonImage.source = "qrc:/images/playhoverpressed.png"
}
onExited: {
if (mainview.state == 'playing')
playButtonImage.source = "qrc:/images/pausenormal.png"
else
playButtonImage.source = "qrc:/images/playnormal.png"
}
}
}
Rectangle {
id: stopButton
height: 54
width: 54
anchors.bottom: parent.bottom
anchors.bottomMargin: width
x: parent.width / 2 + buttonHorizontalMargin
color: "transparent"
Image {
id: stopButtonImage
source: "qrc:/images/stopnormal.png"
}
MouseArea {
anchors.fill: parent
hoverEnabled: isHoverEnabled
onClicked: mainview.state = 'stopped'
onEntered: {
if (mainview.state != 'stopped')
stopButtonImage.source = "qrc:/images/stophoverpressed.png"
}
onExited: {
if (mainview.state != 'stopped')
stopButtonImage.source = "qrc:/images/stopnormal.png"
}
}
}
}
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