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
|
import QtQuick 2.9
Item {
id: root
width: 200
height: 200
property real value: 80
property real minValue: 0
property real maxValue: 120
property string unit: "°C"
property color primaryColor: "#16CCBA"
property color secondaryColor: "#00000000"
property int animationDuration: 500
property real startAngle: 0
Rectangle {
anchors.fill: parent
color: "#041F2B"
z: -1
}
Canvas {
id: canvas
anchors.fill: parent
antialiasing: true
property real degree: 0
onDegreeChanged: requestPaint()
onPaint: {
var ctx = getContext("2d")
var center = Qt.point(width / 2, height / 2)
var side = Math.min(width, height)
var radius = (side - side * 0.25) / 2
var startAngle = Math.PI * 2 / 3
var fullAngle = Math.PI * 2 / 3
var progressAngle = startAngle + (degree / 270) * fullAngle
ctx.reset()
ctx.lineCap = 'square'
// background arc
ctx.lineWidth = 25
ctx.beginPath()
ctx.arc(center.x, center.y, radius, startAngle, startAngle + fullAngle)
ctx.strokeStyle = '#000000'
ctx.stroke()
// fill arc
ctx.lineWidth = 15
ctx.beginPath()
ctx.arc(center.x, center.y, radius, startAngle, progressAngle)
ctx.strokeStyle = primaryColor
ctx.stroke()
// draw tick marks
ctx.lineWidth = 5
ctx.strokeStyle = '#FFFFFF'
ctx.beginPath()
var tickCount = 2; // Number of tick marks
for (var i = 0; i < tickCount; i++) {
var angle = startAngle + (i / (tickCount - 1)) * (progressAngle - startAngle)
var x1 = center.x + radius * Math.cos(angle)
var y1 = center.y + radius * Math.sin(angle)
var x2 = center.x + (radius - 10) * Math.cos(angle)
var y2 = center.y + (radius - 10) * Math.sin(angle)
ctx.moveTo(x1, y1)
ctx.lineTo(x2, y2)
}
ctx.stroke()
}
}
Text {
id: gaugeText
anchors.centerIn: parent
text: "0"
font.pixelSize: 0.3 * Math.min(root.width, root.height)
font.bold: true
color: "#FFFFFF"
}
Text {
id: gaugePercentage
anchors.verticalCenter: gaugeText.verticalCenter
anchors.left: gaugeText.right
text: "%"
font.pixelSize: 0.15 * Math.min(root.width, root.height)
font.bold: true
color: "#FFFFFF"
}
Text {
id: gaugeUnit
anchors.top: gaugeText.bottom
anchors.horizontalCenter: gaugeText.horizontalCenter
text: unit
font.pixelSize: 18
font.bold: true
color: "#FFFFFF"
}
Behavior on value {
NumberAnimation { duration: animationDuration }
}
onValueChanged: updateGaugeValue(value)
function updateGaugeValue(value) {
canvas.degree = value * 270
gaugeText.text = (value * (maxValue - minValue) + minValue).toFixed(0)
}
MouseArea {
anchors.fill: parent
hoverEnabled: true
property bool isDragging: false
property real initialValue: 0
onEntered: cursorShape = Qt.PointingHandCursor
onPressed: {
isDragging = true
initialValue = root.value
}
onReleased: isDragging = false
onMouseXChanged: updateDragValue(mouse.x, mouse.y)
onMouseYChanged: updateDragValue(mouse.x, mouse.y)
function updateDragValue(x, y) {
if (!isDragging) return
var centerX = width / 2
var centerY = height / 2
var dx = x - centerX
var dy = centerY - y // Note: y-axis is inverted
var angle = Math.atan2(dy, dx) * (180 / Math.PI)
// Convert angle to gauge value (0 to 1)
var gaugeValue = (angle + 135) / 270; // Adjust based on your gauge's start angle
gaugeValue = Math.max(0, Math.min(gaugeValue, 1)); // Clamp value
root.value = gaugeValue;
}
}
}
|
