1 /* 2 * Copyright 2021 Google LLC 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.ux.material.libmonet.palettes; 18 19 import static java.lang.Math.max; 20 import static java.lang.Math.min; 21 22 import com.google.ux.material.libmonet.hct.Hct; 23 24 /** 25 * An intermediate concept between the key color for a UI theme, and a full color scheme. 5 sets of 26 * tones are generated, all except one use the same hue as the key color, and all vary in chroma. 27 * 28 * @deprecated Use {@link com.google.ux.material.libmonet.dynamiccolor.DynamicScheme} for color 29 * scheme generation. Use {@link com.google.ux.material.libmonet.palettes.CorePalettes} for core 30 * palettes container class. 31 */ 32 @Deprecated 33 public final class CorePalette { 34 public TonalPalette a1; 35 public TonalPalette a2; 36 public TonalPalette a3; 37 public TonalPalette n1; 38 public TonalPalette n2; 39 public TonalPalette error; 40 41 /** 42 * Create key tones from a color. 43 * 44 * @param argb ARGB representation of a color 45 * @deprecated Use {@link com.google.ux.material.libmonet.dynamiccolor.DynamicScheme} for color 46 * scheme generation. Use {@link com.google.ux.material.libmonet.palettes.CorePalettes} for 47 * core palettes container class. 48 */ 49 @Deprecated of(int argb)50 public static CorePalette of(int argb) { 51 return new CorePalette(argb, false); 52 } 53 54 /** 55 * Create content key tones from a color. 56 * 57 * @param argb ARGB representation of a color 58 * @deprecated Use {@link com.google.ux.material.libmonet.dynamiccolor.DynamicScheme} for color 59 * scheme generation. Use {@link com.google.ux.material.libmonet.palettes.CorePalettes} for 60 * core palettes container class. 61 */ 62 @Deprecated contentOf(int argb)63 public static CorePalette contentOf(int argb) { 64 return new CorePalette(argb, true); 65 } 66 CorePalette(int argb, boolean isContent)67 private CorePalette(int argb, boolean isContent) { 68 Hct hct = Hct.fromInt(argb); 69 double hue = hct.getHue(); 70 double chroma = hct.getChroma(); 71 if (isContent) { 72 this.a1 = TonalPalette.fromHueAndChroma(hue, chroma); 73 this.a2 = TonalPalette.fromHueAndChroma(hue, chroma / 3.); 74 this.a3 = TonalPalette.fromHueAndChroma(hue + 60., chroma / 2.); 75 this.n1 = TonalPalette.fromHueAndChroma(hue, min(chroma / 12., 4.)); 76 this.n2 = TonalPalette.fromHueAndChroma(hue, min(chroma / 6., 8.)); 77 } else { 78 this.a1 = TonalPalette.fromHueAndChroma(hue, max(48., chroma)); 79 this.a2 = TonalPalette.fromHueAndChroma(hue, 16.); 80 this.a3 = TonalPalette.fromHueAndChroma(hue + 60., 24.); 81 this.n1 = TonalPalette.fromHueAndChroma(hue, 4.); 82 this.n2 = TonalPalette.fromHueAndChroma(hue, 8.); 83 } 84 this.error = TonalPalette.fromHueAndChroma(25, 84.); 85 } 86 } 87