import QtQuick 2.1 Item { id: root width: size height: size property int size: 64 property int controlId: 0 property real value: 0 property color color: 'black' function update() { value = controlId ? Controller.getValue(controlId) : 0; canvas.requestPaint(); } Timer { interval: 50; running: root.controlId; repeat: true onTriggered: root.update() } Canvas { id: canvas anchors.fill: parent antialiasing: false onPaint: { var ctx = canvas.getContext('2d'); ctx.save(); ctx.beginPath(); ctx.clearRect(0, 0, width, height); if (root.value > 0.0) { ctx.fillStyle = root.color ctx.fillRect(0, 0, canvas.width, canvas.height); } ctx.fill(); ctx.restore() } }}
import QtQuick 2.1
Item {
id: root
width: size
height: size
property int size: 64
property int controlId: 0
property real value: 0
property color color: 'black'
function update() {
value = controlId ? Controller.getValue(controlId) : 0;
canvas.requestPaint();
}
Timer {
interval: 50; running: root.controlId; repeat: true
onTriggered: root.update()
}
Canvas {
id: canvas
anchors.fill: parent
antialiasing: false
onPaint: {
var ctx = canvas.getContext('2d');
ctx.save();
ctx.beginPath();
ctx.clearRect(0, 0, width, height);
if (root.value > 0.0) {
ctx.fillStyle = root.color
ctx.fillRect(0, 0, canvas.width, canvas.height);
}
ctx.fill();
ctx.restore()
}
}
}