Node / meshtastic / Meshtastic-Android / files / androidApp / src / testGoogle / kotlin / org / meshtastic / app / map / MapLayerOpacityTest.kt

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T8b949e/*

* Copyright (c) 2026 Meshtastic LLC

*

* 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 <https://www.gnu.org/licenses/>.

*/

Tff7b72package T7ee787org.meshtastic.app.map

Tff7b72import T7ee787com.google.maps.android.data.parser.geojson.GeoJsonParser

Tff7b72import T7ee787com.google.maps.android.data.renderer.mapper.toLayer

Tff7b72import T7ee787com.google.maps.android.data.renderer.model.LineStyle

Tff7b72import T7ee787com.google.maps.android.data.renderer.model.PointStyle

Tff7b72import T7ee787com.google.maps.android.data.renderer.model.PolygonStyle

Tff7b72import T7ee787org.junit.runner.RunWith

Tff7b72import T7ee787org.robolectric.RobolectricTestRunner

Tff7b72import T7ee787kotlin.test.Test

Tff7b72import T7ee787kotlin.test.assertEquals

Tff7b72import T7ee787kotlin.test.assertNotNull

Tff7b72import T7ee787android.graphics.Color Tff7b72as Te6edf3AndroidColor

T8b949e/**

* The Google map fades an imported layer by scaling the alpha its features already carry, because maps-utils draws

* plain map objects rather than styled tiles — there is no layer-wide opacity to set.

*/

Tf0883e@RunWithTb4b4b4(Te6edf3RobolectricTestRunnerTff7b72::Te6edf3classTb4b4b4)

Tff7b72class T56d364MapLayerOpacityTest Tb4b4b4{

Tff7b72private Tff7b72fun Td2a8fflayerFromTb4b4b4(Te6edf3geoJsonTb4b4b4: Tffa657StringTb4b4b4) Tff7b72=

Te6edf3assertNotNullTb4b4b4(Te6edf3GeoJsonParserTb4b4b4(Tb4b4b4)Tb4b4b4.Te6edf3parseTb4b4b4(Te6edf3geoJsonTb4b4b4.Te6edf3byteInputStreamTb4b4b4(Tb4b4b4)Tb4b4b4)Tff7b72?.Te6edf3toLayerTb4b4b4(Tb4b4b4)Tff7b72?.Te6edf3applySimpleStyleSpecTb4b4b4(Tb4b4b4)Tb4b4b4)

Tff7b72private Tff7b72val Te6edf3polygon Tff7b72=

Ta5d6ff"""

Ta5d6ff {Ta5d6ff"Ta5d6fftypeTa5d6ff"Ta5d6ff:Ta5d6ff"Ta5d6ffFeatureCollectionTa5d6ff"Ta5d6ff,Ta5d6ff"Ta5d6fffeaturesTa5d6ff"Ta5d6ff:[{Ta5d6ff"Ta5d6fftypeTa5d6ff"Ta5d6ff:Ta5d6ff"Ta5d6ffFeatureTa5d6ff"Ta5d6ff,

Ta5d6ff"Ta5d6ffpropertiesTa5d6ff"Ta5d6ff:{Ta5d6ff"Ta5d6fffillTa5d6ff"Ta5d6ff:Ta5d6ff"Ta5d6ff#ff0000Ta5d6ff"Ta5d6ff,Ta5d6ff"Ta5d6fffill-opacityTa5d6ff"Ta5d6ff:Ta5d6ff"Ta5d6ff0.8Ta5d6ff"Ta5d6ff,Ta5d6ff"Ta5d6ffstrokeTa5d6ff"Ta5d6ff:Ta5d6ff"Ta5d6ff#0000ffTa5d6ff"Ta5d6ff},

Ta5d6ff"Ta5d6ffgeometryTa5d6ff"Ta5d6ff:{Ta5d6ff"Ta5d6fftypeTa5d6ff"Ta5d6ff:Ta5d6ff"Ta5d6ffPolygonTa5d6ff"Ta5d6ff,Ta5d6ff"Ta5d6ffcoordinatesTa5d6ff"Ta5d6ff:[[[0,0],[1,0],[1,1],[0,0]]]}}]}

Ta5d6ff"""

Tb4b4b4.Te6edf3trimIndentTb4b4b4(Tb4b4b4)

Tff7b72private Tff7b72val Te6edf3line Tff7b72=

Ta5d6ff"""

Ta5d6ff {Ta5d6ff"Ta5d6fftypeTa5d6ff"Ta5d6ff:Ta5d6ff"Ta5d6ffFeatureCollectionTa5d6ff"Ta5d6ff,Ta5d6ff"Ta5d6fffeaturesTa5d6ff"Ta5d6ff:[{Ta5d6ff"Ta5d6fftypeTa5d6ff"Ta5d6ff:Ta5d6ff"Ta5d6ffFeatureTa5d6ff"Ta5d6ff,

Ta5d6ff"Ta5d6ffpropertiesTa5d6ff"Ta5d6ff:{Ta5d6ff"Ta5d6ffstrokeTa5d6ff"Ta5d6ff:Ta5d6ff"Ta5d6ff#00ff00Ta5d6ff"Ta5d6ff},

Ta5d6ff"Ta5d6ffgeometryTa5d6ff"Ta5d6ff:{Ta5d6ff"Ta5d6fftypeTa5d6ff"Ta5d6ff:Ta5d6ff"Ta5d6ffLineStringTa5d6ff"Ta5d6ff,Ta5d6ff"Ta5d6ffcoordinatesTa5d6ff"Ta5d6ff:[[0,0],[1,1]]}}]}

Ta5d6ff"""

Tb4b4b4.Te6edf3trimIndentTb4b4b4(Tb4b4b4)

Tf0883e@Test

Tff7b72fun Td2a8ff`a fully opaque layer is left exactly as it was`Tb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3original Tff7b72= Te6edf3layerFromTb4b4b4(Te6edf3polygonTb4b4b4)

Te6edf3assertEqualsTb4b4b4(Te6edf3originalTb4b4b4, Te6edf3originalTb4b4b4.Te6edf3scaledByOpacityTb4b4b4(T79c0ff1fTb4b4b4)Tb4b4b4)

Tb4b4b4}

Tf0883e@Test

Tff7b72fun Td2a8ff`a polygon's fill and stroke alpha are both scaled`Tb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3faded Tff7b72= Te6edf3layerFromTb4b4b4(Te6edf3polygonTb4b4b4)Tb4b4b4.Te6edf3scaledByOpacityTb4b4b4(T79c0ff0.5fTb4b4b4)

Tff7b72val Te6edf3style Tff7b72= Te6edf3assertNotNullTb4b4b4(Te6edf3fadedTb4b4b4.Te6edf3featuresTb4b4b4.Te6edf3singleTb4b4b4(Tb4b4b4)Tb4b4b4.Te6edf3style Tff7b72as? Te6edf3PolygonStyleTb4b4b4)

T8b949e// fill-opacity 0.8 → 204, halved.

Te6edf3assertEqualsTb4b4b4(T79c0ff1T79c0ff0T79c0ff2Tb4b4b4, Te6edf3AndroidColorTb4b4b4.Te6edf3alphaTb4b4b4(Te6edf3styleTb4b4b4.Te6edf3fillColorTb4b4b4)Tb4b4b4)

Te6edf3assertEqualsTb4b4b4(T79c0ff1T79c0ff2T79c0ff8Tb4b4b4, Te6edf3AndroidColorTb4b4b4.Te6edf3alphaTb4b4b4(Te6edf3styleTb4b4b4.Te6edf3strokeColorTb4b4b4)Tb4b4b4)

Tb4b4b4}

Tf0883e@Test

Tff7b72fun Td2a8ff`a line's alpha is scaled`Tb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3faded Tff7b72= Te6edf3layerFromTb4b4b4(Te6edf3lineTb4b4b4)Tb4b4b4.Te6edf3scaledByOpacityTb4b4b4(T79c0ff0.25fTb4b4b4)

Tff7b72val Te6edf3style Tff7b72= Te6edf3assertNotNullTb4b4b4(Te6edf3fadedTb4b4b4.Te6edf3featuresTb4b4b4.Te6edf3singleTb4b4b4(Tb4b4b4)Tb4b4b4.Te6edf3style Tff7b72as? Te6edf3LineStyleTb4b4b4)

Te6edf3assertEqualsTb4b4b4(T79c0ff6T79c0ff4Tb4b4b4, Te6edf3AndroidColorTb4b4b4.Te6edf3alphaTb4b4b4(Te6edf3styleTb4b4b4.Te6edf3colorTb4b4b4)Tb4b4b4)

Tb4b4b4}

Tf0883e@Test

Tff7b72fun Td2a8ff`a point's alpha is scaled too`Tb4b4b4(Tb4b4b4) Tb4b4b4{

T8b949e// A point-only KML stayed fully visible at 0% while this was skipped: PointStyle does carry an ARGB colour,

T8b949e// which the renderer turns into the marker's alpha.

Tff7b72val Te6edf3point Tff7b72=

Ta5d6ff"""

Ta5d6ff {Ta5d6ff"Ta5d6fftypeTa5d6ff"Ta5d6ff:Ta5d6ff"Ta5d6ffFeatureCollectionTa5d6ff"Ta5d6ff,Ta5d6ff"Ta5d6fffeaturesTa5d6ff"Ta5d6ff:[{Ta5d6ff"Ta5d6fftypeTa5d6ff"Ta5d6ff:Ta5d6ff"Ta5d6ffFeatureTa5d6ff"Ta5d6ff,

Ta5d6ff"Ta5d6ffpropertiesTa5d6ff"Ta5d6ff:{Ta5d6ff"Ta5d6fficon-urlTa5d6ff"Ta5d6ff:Ta5d6ff"Ta5d6fffiles/tower.pngTa5d6ff"Ta5d6ff},

Ta5d6ff"Ta5d6ffgeometryTa5d6ff"Ta5d6ff:{Ta5d6ff"Ta5d6fftypeTa5d6ff"Ta5d6ff:Ta5d6ff"Ta5d6ffPointTa5d6ff"Ta5d6ff,Ta5d6ff"Ta5d6ffcoordinatesTa5d6ff"Ta5d6ff:[0,0]}}]}

Ta5d6ff"""

Tb4b4b4.Te6edf3trimIndentTb4b4b4(Tb4b4b4)

Tff7b72val Te6edf3faded Tff7b72= Te6edf3layerFromTb4b4b4(Te6edf3pointTb4b4b4)Tb4b4b4.Te6edf3scaledByOpacityTb4b4b4(T79c0ff0.5fTb4b4b4)

Tff7b72val Te6edf3style Tff7b72= Te6edf3assertNotNullTb4b4b4(Te6edf3fadedTb4b4b4.Te6edf3featuresTb4b4b4.Te6edf3singleTb4b4b4(Tb4b4b4)Tb4b4b4.Te6edf3style Tff7b72as? Te6edf3PointStyleTb4b4b4)

Te6edf3assertEqualsTb4b4b4(T79c0ff1T79c0ff2T79c0ff8Tb4b4b4, Te6edf3AndroidColorTb4b4b4.Te6edf3alphaTb4b4b4(Te6edf3styleTb4b4b4.Te6edf3colorTb4b4b4)Tb4b4b4)

Tb4b4b4}

Tf0883e@Test

Tff7b72fun Td2a8ff`scaling alpha leaves the colour itself alone`Tb4b4b4(Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3faded Tff7b72= Te6edf3layerFromTb4b4b4(Te6edf3lineTb4b4b4)Tb4b4b4.Te6edf3scaledByOpacityTb4b4b4(T79c0ff0.5fTb4b4b4)

Tff7b72val Te6edf3style Tff7b72= Te6edf3assertNotNullTb4b4b4(Te6edf3fadedTb4b4b4.Te6edf3featuresTb4b4b4.Te6edf3singleTb4b4b4(Tb4b4b4)Tb4b4b4.Te6edf3style Tff7b72as? Te6edf3LineStyleTb4b4b4)

Te6edf3assertEqualsTb4b4b4(T79c0ff0Tb4b4b4, Te6edf3AndroidColorTb4b4b4.Te6edf3redTb4b4b4(Te6edf3styleTb4b4b4.Te6edf3colorTb4b4b4)Tb4b4b4)

Te6edf3assertEqualsTb4b4b4(T79c0ff2T79c0ff5T79c0ff5Tb4b4b4, Te6edf3AndroidColorTb4b4b4.Te6edf3greenTb4b4b4(Te6edf3styleTb4b4b4.Te6edf3colorTb4b4b4)Tb4b4b4)

Te6edf3assertEqualsTb4b4b4(T79c0ff0Tb4b4b4, Te6edf3AndroidColorTb4b4b4.Te6edf3blueTb4b4b4(Te6edf3styleTb4b4b4.Te6edf3colorTb4b4b4)Tb4b4b4)

Tb4b4b4}

Tb4b4b4}