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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the QtQuick Enterprise Controls Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 2.0
import QtQuick.Enterprise.Controls.Styles 1.0
CircularGaugeStyle {
tickmarkInset: toPixels(0.04)
minorTickmarkInset: tickmarkInset
labelStepSize: 20
labelInset: toPixels(0.23)
property real xCenter: outerRadius
property real yCenter: outerRadius
property real needleLength: outerRadius - tickmarkInset * 1.25
property real needleTipWidth: toPixels(0.02)
property real needleBaseWidth: toPixels(0.06)
property bool halfGauge: false
function toPixels(percentage) {
return percentage * outerRadius;
}
function degToRad(degrees) {
return degrees * (Math.PI / 180);
}
function radToDeg(radians) {
return radians * (180 / Math.PI);
}
function paintBackground(ctx) {
if (halfGauge) {
ctx.beginPath();
ctx.rect(0, 0, ctx.canvas.width, ctx.canvas.height / 2);
ctx.clip();
}
ctx.beginPath();
ctx.fillStyle = "black";
ctx.ellipse(0, 0, ctx.canvas.width, ctx.canvas.height);
ctx.fill();
ctx.beginPath();
ctx.lineWidth = tickmarkInset;
ctx.strokeStyle = "black";
ctx.arc(xCenter, yCenter, outerRadius - ctx.lineWidth / 2, outerRadius - ctx.lineWidth / 2, 0, Math.PI * 2);
ctx.stroke();
ctx.beginPath();
ctx.lineWidth = tickmarkInset / 2;
ctx.strokeStyle = "#222";
ctx.arc(xCenter, yCenter, outerRadius - ctx.lineWidth / 2, outerRadius - ctx.lineWidth / 2, 0, Math.PI * 2);
ctx.stroke();
ctx.beginPath();
var gradient = ctx.createRadialGradient(xCenter, yCenter, outerRadius * 0.8, xCenter, yCenter, outerRadius);
gradient.addColorStop(0, Qt.rgba(1, 1, 1, 0));
gradient.addColorStop(0.7, Qt.rgba(1, 1, 1, 0.13));
gradient.addColorStop(1, Qt.rgba(1, 1, 1, 1));
ctx.fillStyle = gradient;
ctx.arc(xCenter, yCenter, outerRadius - tickmarkInset, outerRadius - tickmarkInset, 0, Math.PI * 2);
ctx.fill();
}
background: Canvas {
onPaint: {
var ctx = getContext("2d");
ctx.reset();
paintBackground(ctx);
}
Text {
id: speedText
font.pixelSize: toPixels(0.3)
text: kphInt
color: "white"
horizontalAlignment: Text.AlignRight
anchors.horizontalCenter: parent.horizontalCenter
anchors.top: parent.verticalCenter
anchors.topMargin: toPixels(0.1)
readonly property int kphInt: control.value
}
Text {
text: "km/h"
color: "white"
font.pixelSize: toPixels(0.09)
anchors.top: speedText.bottom
anchors.horizontalCenter: parent.horizontalCenter
}
}
needle: Canvas {
width: needleBaseWidth
height: needleLength
property real xCenter: width / 2
property real yCenter: height / 2
onPaint: {
var ctx = getContext("2d");
ctx.reset();
ctx.beginPath();
ctx.moveTo(xCenter, height);
ctx.lineTo(xCenter - needleBaseWidth / 2, height - needleBaseWidth / 2);
ctx.lineTo(xCenter - needleTipWidth / 2, 0);
ctx.lineTo(xCenter, yCenter - needleLength);
ctx.lineTo(xCenter, 0);
ctx.closePath();
ctx.fillStyle = Qt.rgba(0.66, 0, 0, 0.66);
ctx.fill();
ctx.beginPath();
ctx.moveTo(xCenter, height)
ctx.lineTo(width, height - needleBaseWidth / 2);
ctx.lineTo(xCenter + needleTipWidth / 2, 0);
ctx.lineTo(xCenter, 0);
ctx.closePath();
ctx.fillStyle = Qt.lighter(Qt.rgba(0.66, 0, 0, 0.66));
ctx.fill();
}
}
foreground: null
}
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