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59 lines
2.4 KiB
59 lines
2.4 KiB
/*
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* Copyright 2022 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.ux.material.libmonet.scheme;
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import static java.lang.Math.max;
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import com.google.ux.material.libmonet.dislike.DislikeAnalyzer;
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import com.google.ux.material.libmonet.hct.Hct;
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import com.google.ux.material.libmonet.palettes.TonalPalette;
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import com.google.ux.material.libmonet.temperature.TemperatureCache;
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/**
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* A scheme that places the source color in Scheme.primaryContainer.
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*
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* <p>Primary Container is the source color, adjusted for color relativity. It maintains constant
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* appearance in light mode and dark mode. This adds ~5 tone in light mode, and subtracts ~5 tone in
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* dark mode.
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*
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* <p>Tertiary Container is an analogous color, specifically, the analog of a color wheel divided
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* into 6, and the precise analog is the one found by increasing hue. This is a scientifically
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* grounded equivalent to rotating hue clockwise by 60 degrees. It also maintains constant
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* appearance.
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*/
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public class SchemeContent extends DynamicScheme {
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public SchemeContent(Hct sourceColorHct, boolean isDark, double contrastLevel) {
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super(
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sourceColorHct,
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Variant.CONTENT,
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isDark,
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contrastLevel,
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TonalPalette.fromHueAndChroma(sourceColorHct.getHue(), sourceColorHct.getChroma()),
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TonalPalette.fromHueAndChroma(
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sourceColorHct.getHue(),
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max(sourceColorHct.getChroma() - 32.0, sourceColorHct.getChroma() * 0.5)),
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TonalPalette.fromHct(
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DislikeAnalyzer.fixIfDisliked(
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new TemperatureCache(sourceColorHct)
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.getAnalogousColors(/* count= */ 3, /* divisions= */ 6)
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.get(2))),
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TonalPalette.fromHueAndChroma(sourceColorHct.getHue(), sourceColorHct.getChroma() / 8.0),
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TonalPalette.fromHueAndChroma(
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sourceColorHct.getHue(), (sourceColorHct.getChroma() / 8.0) + 4.0));
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}
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}
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