IconGaugeStyle.qml Example File

dashboard/qml/IconGaugeStyle.qml
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import QtQuick 2.2 import QtQuick.Controls.Styles 1.4 import QtQuick.Extras 1.4 DashboardGaugeStyle { id: fuelGaugeStyle minimumValueAngle: -60 maximumValueAngle: 60 tickmarkStepSize: 1 labelStepSize: 1 labelInset: toPixels(-0.25) minorTickmarkCount: 3 needleLength: toPixels(0.85) needleBaseWidth: toPixels(0.08) needleTipWidth: toPixels(0.03) halfGauge: true property string icon: "" property color minWarningColor: "transparent" property color maxWarningColor: "transparent" readonly property real minWarningStartAngle: minimumValueAngle - 90 readonly property real maxWarningStartAngle: maximumValueAngle - 90 tickmark: Rectangle { implicitWidth: toPixels(0.06) antialiasing: true implicitHeight: toPixels(0.2) color: "#c8c8c8" } minorTickmark: Rectangle { implicitWidth: toPixels(0.03) antialiasing: true implicitHeight: toPixels(0.15) color: "#c8c8c8" } background: Item { Canvas { anchors.fill: parent onPaint: { var ctx = getContext("2d"); ctx.reset(); paintBackground(ctx); if (minWarningColor != "transparent") { ctx.beginPath(); ctx.lineWidth = fuelGaugeStyle.toPixels(0.08); ctx.strokeStyle = minWarningColor; ctx.arc(outerRadius, outerRadius, // Start the line in from the decorations, and account for the width of the line itself. outerRadius - tickmarkInset - ctx.lineWidth / 2, degToRad(minWarningStartAngle), degToRad(minWarningStartAngle + angleRange / (minorTickmarkCount + 1)), false); ctx.stroke(); } if (maxWarningColor != "transparent") { ctx.beginPath(); ctx.lineWidth = fuelGaugeStyle.toPixels(0.08); ctx.strokeStyle = maxWarningColor; ctx.arc(outerRadius, outerRadius, // Start the line in from the decorations, and account for the width of the line itself. outerRadius - tickmarkInset - ctx.lineWidth / 2, degToRad(maxWarningStartAngle - angleRange / (minorTickmarkCount + 1)), degToRad(maxWarningStartAngle), false); ctx.stroke(); } } } Image { source: icon anchors.bottom: parent.verticalCenter anchors.bottomMargin: toPixels(0.3) anchors.horizontalCenter: parent.horizontalCenter width: toPixels(0.3) height: width fillMode: Image.PreserveAspectFit } } }