app/src/main/java/net/ktnx/mobileledger/utils/Colors.java

   1 package net.ktnx.mobileledger.utils;
   2
   3 import android.app.Activity;
   4 import android.content.res.Resources;
   5 import androidx.annotation.ColorInt;
   6 import androidx.annotation.ColorLong;
   7 import android.util.Log;
   8 import android.util.TypedValue;
   9
  10 import net.ktnx.mobileledger.R;
  11 import net.ktnx.mobileledger.model.Data;
  12 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  13
  14 public class Colors {
  15     public static final int DEFAULT_HUE_DEG = 261;
  16     public static @ColorInt
  17     int accent;
  18     @ColorInt
  19     public static int tableRowLightBG;
  20     @ColorInt
  21     public static int tableRowDarkBG;
  22     @ColorInt
  23     public static int primary, defaultTextColor;
  24     public static int profileThemeId = -1;
  25
  26     public static ObservableValue<Integer> themeWatch = new ObservableValue<>(0);
  27     public static void refreshColors(Resources.Theme theme) {
  28         TypedValue tv = new TypedValue();
  29         theme.resolveAttribute(R.attr.table_row_dark_bg, tv, true);
  30         tableRowDarkBG = tv.data;
  31         theme.resolveAttribute(R.attr.table_row_light_bg, tv, true);
  32         tableRowLightBG = tv.data;
  33         theme.resolveAttribute(R.attr.colorPrimary, tv, true);
  34         primary = tv.data;
  35         theme.resolveAttribute(android.R.color.tab_indicator_text, tv, true);
  36         defaultTextColor = tv.data;
  37         theme.resolveAttribute(R.attr.colorAccent, tv, true);
  38         accent = tv.data;
  39
  40         // trigger theme observers
  41         themeWatch.notifyObservers();
  42     }
  43     public static @ColorLong
  44     long hsvaColor(float hue, float saturation, float value, float alpha) {
  45         if (alpha < 0 || alpha > 1)
  46             throw new IllegalArgumentException("alpha must be between 0 and 1");
  47
  48         @ColorLong long rgb = hsvTriplet(hue, saturation, value);
  49
  50         long a_bits = Math.round(255 * alpha);
  51         return (a_bits << 24) | rgb;
  52     }
  53     public static @ColorInt
  54     int hsvColor(float hue, float saturation, float value) {
  55         return 0xff000000 | hsvTriplet(hue, saturation, value);
  56     }
  57     public static @ColorInt
  58     int hsvTriplet(float hue, float saturation, float value) {
  59         @ColorLong long result;
  60         int r, g, b;
  61
  62         if ((hue < -0.00005) || (hue > 1.0000005) || (saturation < 0) || (saturation > 1) ||
  63             (value < 0) || (value > 1)) throw new IllegalArgumentException(String.format(
  64                 "hue, saturation, value and alpha must all be between 0 and 1. Arguments given: " +
  65                 "hue=%1.5f, sat=%1.5f, val=%1.5f", hue, saturation, value));
  66
  67         int h = (int) (hue * 6);
  68         float f = hue * 6 - h;
  69         float p = value * (1 - saturation);
  70         float q = value * (1 - f * saturation);
  71         float t = value * (1 - (1 - f) * saturation);
  72
  73         switch (h) {
  74             case 0:
  75             case 6:
  76                 return tupleToColor(value, t, p);
  77             case 1:
  78                 return tupleToColor(q, value, p);
  79             case 2:
  80                 return tupleToColor(p, value, t);
  81             case 3:
  82                 return tupleToColor(p, q, value);
  83             case 4:
  84                 return tupleToColor(t, p, value);
  85             case 5:
  86                 return tupleToColor(value, p, q);
  87             default:
  88                 throw new RuntimeException(String.format("Unexpected value for h (%d) while " +
  89                                                          "converting hsv(%1.2f, %1.2f, %1.2f) to " +
  90                                                          "rgb", h, hue, saturation, value));
  91         }
  92     }
  93
  94     public static @ColorInt
  95     int tupleToColor(float r, float g, float b) {
  96         int r_int = Math.round(255 * r);
  97         int g_int = Math.round(255 * g);
  98         int b_int = Math.round(255 * b);
  99         return (r_int << 16) | (g_int << 8) | b_int;
 100     }
 101     public static @ColorInt
 102     int getPrimaryColorForHue(int degrees) {
 103         // 0/360f becomes -0.000something for some reason
 104         if (degrees == 0) return getPrimaryColorForHue(0f);
 105         return getPrimaryColorForHue(degrees / 360f);
 106     }
 107     public static @ColorInt
 108     int getPrimaryColorForHue(float hue) {
 109         int result = hsvColor(hue, 0.61f, 0.95f);
 110         Log.d("colors", String.format("getPrimaryColorForHue(%1.2f) = %x", hue, result));
 111         return result;
 112     }
 113     public static void setupTheme(Activity activity) {
 114         MobileLedgerProfile profile = Data.profile.get();
 115         if (profile != null) {
 116             switch (Data.profile.get().getThemeId()) {
 117                 case 0:
 118                     activity.setTheme(R.style.AppTheme_NoActionBar_0);
 119                     break;
 120                 case 15:
 121                     activity.setTheme(R.style.AppTheme_NoActionBar_15);
 122                     break;
 123                 case 30:
 124                     activity.setTheme(R.style.AppTheme_NoActionBar_30);
 125                     break;
 126                 case 45:
 127                     activity.setTheme(R.style.AppTheme_NoActionBar_45);
 128                     break;
 129                 case 60:
 130                     activity.setTheme(R.style.AppTheme_NoActionBar_60);
 131                     break;
 132                 case 75:
 133                     activity.setTheme(R.style.AppTheme_NoActionBar_75);
 134                     break;
 135                 case 90:
 136                     activity.setTheme(R.style.AppTheme_NoActionBar_90);
 137                     break;
 138                 case 105:
 139                     activity.setTheme(R.style.AppTheme_NoActionBar_105);
 140                     break;
 141                 case 120:
 142                     activity.setTheme(R.style.AppTheme_NoActionBar_120);
 143                     break;
 144                 case 135:
 145                     activity.setTheme(R.style.AppTheme_NoActionBar_135);
 146                     break;
 147                 case 150:
 148                     activity.setTheme(R.style.AppTheme_NoActionBar_150);
 149                     break;
 150                 case 165:
 151                     activity.setTheme(R.style.AppTheme_NoActionBar_165);
 152                     break;
 153                 case 180:
 154                     activity.setTheme(R.style.AppTheme_NoActionBar_180);
 155                     break;
 156                 case 195:
 157                     activity.setTheme(R.style.AppTheme_NoActionBar_195);
 158                     break;
 159                 case 210:
 160                     activity.setTheme(R.style.AppTheme_NoActionBar_210);
 161                     break;
 162                 case 225:
 163                     activity.setTheme(R.style.AppTheme_NoActionBar_225);
 164                     break;
 165                 case 240:
 166                     activity.setTheme(R.style.AppTheme_NoActionBar_240);
 167                     break;
 168                 case 255:
 169                     activity.setTheme(R.style.AppTheme_NoActionBar_255);
 170                     break;
 171                 case 270:
 172                     activity.setTheme(R.style.AppTheme_NoActionBar_270);
 173                     break;
 174                 case 285:
 175                     activity.setTheme(R.style.AppTheme_NoActionBar_285);
 176                     break;
 177                 case 300:
 178                     activity.setTheme(R.style.AppTheme_NoActionBar_300);
 179                     break;
 180                 case 315:
 181                     activity.setTheme(R.style.AppTheme_NoActionBar_315);
 182                     break;
 183                 case 330:
 184                     activity.setTheme(R.style.AppTheme_NoActionBar_330);
 185                     break;
 186                 case 345:
 187                     activity.setTheme(R.style.AppTheme_NoActionBar_345);
 188                     break;
 189                 default:
 190                     activity.setTheme(R.style.AppTheme_NoActionBar);
 191             }
 192         }
 193         else activity.setTheme(R.style.AppTheme_NoActionBar);
 194
 195         refreshColors(activity.getTheme());
 196     }
 197
 198 }