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72 lines
2.2 KiB
72 lines
2.2 KiB
6 years ago
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/****************************************************************************
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*
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* (c) 2009-2016 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
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*
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* QGroundControl is licensed according to the terms in the file
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* COPYING.md in the root of the source code directory.
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*
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****************************************************************************/
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import QtQuick 2.3
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import QtQuick.Controls 1.2
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import QtLocation 5.3
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import QtPositioning 5.3
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import QGroundControl 1.0
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import QGroundControl.ScreenTools 1.0
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import QGroundControl.Palette 1.0
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import QGroundControl.Controls 1.0
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import QGroundControl.FlightMap 1.0
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MapQuickItem {
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property color arrowColor: "white"
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property var fromCoord: QtPositioning.coordinate()
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property var toCoord: QtPositioning.coordinate()
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property bool exitPosition: false
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property var _map: parent
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property real _arrowSize: 20
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property real _arrowHeading: 0
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function _updateArrowDetails() {
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if (fromCoord && fromCoord.isValid && toCoord && toCoord.isValid) {
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_arrowHeading = fromCoord.azimuthTo(toCoord)
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var lineDistanceQuarter = fromCoord.distanceTo(toCoord) / 4
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coordinate = fromCoord.atDistanceAndAzimuth(lineDistanceQuarter * (exitPosition ? 3 : 1), _arrowHeading)
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} else {
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coordinate = QtPositioning.coordinate()
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_arrowHeading = 0
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}
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}
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onFromCoordChanged: _updateArrowDetails()
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onToCoordChanged: _updateArrowDetails()
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sourceItem: Canvas {
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x: -_arrowSize
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y: 0
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width: _arrowSize * 2
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height: _arrowSize
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onPaint: {
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var ctx = getContext("2d");
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ctx.lineWidth = 2
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ctx.strokeStyle = arrowColor
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ctx.beginPath();
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ctx.moveTo(_arrowSize, 0);
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ctx.lineTo(_arrowSize * 2, _arrowSize)
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ctx.stroke();
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ctx.beginPath();
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ctx.moveTo(_arrowSize, 0);
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ctx.lineTo(0, _arrowSize)
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ctx.stroke();
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}
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transform: Rotation {
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origin.x: width / 2
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origin.y: 0
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angle: _arrowHeading
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}
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}
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}
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