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Copyright (C) 2024 Samuel Jimenez <therealsamueljimenez@gmail.com>
Ported the Luna Plasmoid to Plasma 6.
Copyright 2016,2017 Bill Binder <dxtwjb@gmail.com>
Copyright (C) 2011, 2012, 2013 Glad Deschrijver <glad.deschrijver@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
import Qt5Compat.GraphicalEffects
import QtQuick 2.1
import org.kde.ksvg as KSvg
import org.kde.plasma.core as PlasmaCore
import org.kde.plasma.plasmoid
Item {
property int latitude: 90 //Degrees: 0=Equator, 90=North Pole, -90=South Pole
property bool showShadow: true
property string lunarImage: ''
property int lunarImageTweak: 0
property bool showGrid: false
property bool showTycho: false
property bool showCopernicus: false
property int theta: 45 // Degrees: 0= new moon, 90= first quarter, 180= full moon, 270= third quarter
imagePath: lunarImage === '' ? '' : Qt.resolvedUrl("../data/" + lunarImage)
width: Math.min(parent.width, parent.height)
height: Math.min(parent.width, parent.height)
// Rotation to compensate the moon's image basic position to a north pole view
property int latitude: lunaIcon.latitude
property bool showShadow: lunaIcon.showShadow
property bool showGrid: lunaIcon.showGrid
property bool showTycho: lunaIcon.showTycho
property bool showCopernicus: lunaIcon.showCopernicus
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function radians(deg) {
return deg / 180 * Math.PI;
}
function marker(radius, latitude, longitude) {
var dy = radius * Math.sin(radians(latitude));
var dx = radius * Math.cos(radians(latitude)) * Math.sin(radians(longitude));
// console.log("dx: " + dx.toString());
// console.log("dy: " + dy.toString());
context.beginPath();
context.strokeStyle = "#FF0000";
context.arc(dx, -dy, 5, 0, 2 * Math.PI);
context.moveTo(dx - 5, -dy - 5);
context.lineTo(dx + 5, -dy + 5);
context.moveTo(dx - 5, -dy + 5);
context.lineTo(dx + 5, -dy - 5);
context.stroke();
}
function grid(radius) {
context.beginPath();
context.strokeStyle = "#FF4040";
context.moveTo(0, -radius);
context.lineTo(0, radius);
context.moveTo(-radius, 0);
context.lineTo(radius, 0);
context.stroke();
context.beginPath();
context.strokeStyle = "#40FF40";
for (var ll = 10; ll < 65; ll += 10) {
var dy = radius * Math.sin(radians(ll));
context.moveTo(-radius, dy);
context.lineTo(radius, dy);
context.moveTo(-radius, -dy);
context.lineTo(radius, -dy);
}
context.stroke();
}
width: lunaSvgItem.width
height: lunaSvgItem.height
visible: false
anchors.centerIn: parent
contextType: "2d"
onLatitudeChanged: requestPaint()
onShowGridChanged: requestPaint()
onShowTychoChanged: requestPaint()
onShowCopernicusChanged: requestPaint()
onPaint: {
context.reset();
context.globalAlpha = 0.9;
context.fillStyle = '#000000';
var radius = Math.floor(height / 2);
var cosTheta = Math.cos(theta / 180 * Math.PI);
context.beginPath();
context.fillStyle = diskColor;
context.arc(0, 0, radius, 0, 2 * Math.PI);
context.closePath();
context.fill();
if (showShadow) {
if (theta != 180) {
context.beginPath();
context.fillStyle = '#000000';
context.strokeStyle = '#000000';
context.arc(0, 0, radius, -0.5 * Math.PI, 0.5 * Math.PI, counterclockwisep);
if ((theta % 180) != 90) {
context.scale(cosTheta, 1);
context.arc(0, 0, radius, 0.5 * Math.PI, -0.5 * Math.PI, counterclockwisep);
}
context.closePath();
context.fill();
context.stroke();
}
} else {
// Calibration markers
if (showGrid)
grid(radius);
// Tycho
if (showTycho)
marker(radius, -43, -11.5);
// Copernicus
if (showCopernicus)
marker(radius, 9.6, -20);
OpacityMask {
anchors.fill: lunaSvgItem
source: lunaSvgItem
maskSource: shadow
invert: true
rotation: latitude - 90
// Shadow is printed on top of the moon image
Blend {
anchors.fill: lunaSvgItem
source: lunaSvgItem
foregroundSource: shadow
rotation: latitude - 90
mode: "normal"
visible: !transparentShadow
}