blob: 7bc709f28354b89e478de6ebf1310d878aa9b84d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
import Qt3D.Core 2.0
import Qt3D.Render 2.0
import Qt3D.Extras 2.0
import QtQuick 2.4 as QQ2
Entity {
property int rotationTimeMs: 0
property int entityIndex: 0
property int entityCount: 0
property int startAngle: 0 + 360 / entityCount * entityIndex
property bool needsNewMagnitude: true
property real magnitude: 0
property real animWeight: 0
property color lowColor: "black"
property color highColor: "#b3b3b3"
property color barColor: lowColor
property string entityAnimationsState: "stopped"
property bool entityAnimationsPlaying: true
property var entityMesh: null
onEntityAnimationsStateChanged: {
if (animationState == "paused") {
if (angleAnimation.running)
angleAnimation.pause()
if (barColorAnimations.running)
barColorAnimations.pause()
} else if (animationState == "playing"){
needsNewMagnitude = true;
if (heightDecreaseAnimation.running)
heightDecreaseAnimation.stop()
if (angleAnimation.paused) {
angleAnimation.resume()
} else if (!entityAnimationsPlaying) {
magnitude = 0
angleAnimation.start()
entityAnimationsPlaying = true
}
if (barColorAnimations.paused)
barColorAnimations.resume()
} else {
if (animWeight != 0)
heightDecreaseAnimation.start()
needsNewMagnitude = true
angleAnimation.stop()
barColorAnimations.stop()
entityAnimationsPlaying = false
}
}
property Material barMaterial: PhongMaterial {
diffuse: barColor
ambient: Qt.darker(barColor)
specular: "black"
shininess: 1
}
property Transform angleTransform: Transform {
property real heightIncrease: magnitude * animWeight
property real barAngle: startAngle
matrix: {
var m = Qt.matrix4x4()
m.rotate(barAngle, Qt.vector3d(0, 1, 0))
m.translate(Qt.vector3d(1.1, heightIncrease / 2 - heightIncrease * 0.05, 0))
m.scale(Qt.vector3d(0.5, heightIncrease * 15, 0.5))
return m;
}
property real compareAngle: barAngle
onBarAngleChanged: {
compareAngle = barAngle
if (compareAngle > 360)
compareAngle = barAngle - 360
if (compareAngle > 180) {
parent.enabled = false
animWeight = 0
if (needsNewMagnitude) {
// Calculate the ms offset where the bar will be at the center point of the
// visualization and fetch the correct magnitude for that point in time.
var offset = (90.0 + 360.0 - compareAngle) * (rotationTimeMs / 360.0)
magnitude = mediaPlayer.getNextAudioLevel(offset)
needsNewMagnitude = false
}
} else {
parent.enabled = true
// Calculate a power of 2 curve for the bar animation that peaks at 90 degrees
animWeight = Math.min((compareAngle / 90), (180 - compareAngle) / 90)
animWeight = animWeight * animWeight
if (!needsNewMagnitude) {
needsNewMagnitude = true
barColorAnimations.start()
}
}
}
}
components: [entityMesh, barMaterial, angleTransform]
//![0]
QQ2.NumberAnimation {
id: angleAnimation
target: angleTransform
property: "barAngle"
duration: rotationTimeMs
loops: QQ2.Animation.Infinite
running: true
from: startAngle
to: 360 + startAngle
}
//![0]
QQ2.NumberAnimation {
id: heightDecreaseAnimation
target: angleTransform
property: "heightIncrease"
duration: 400
running: false
from: angleTransform.heightIncrease
to: 0
onStopped: barColor = lowColor
}
property int animationDuration: angleAnimation.duration / 6
//![1]
QQ2.SequentialAnimation on barColor {
id: barColorAnimations
running: false
QQ2.ColorAnimation {
from: lowColor
to: highColor
duration: animationDuration
}
QQ2.PauseAnimation {
duration: animationDuration
}
QQ2.ColorAnimation {
from: highColor
to: lowColor
duration: animationDuration
}
}
//![1]
}
|
