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 android.support.annotation.ColorInt;
   6 import android.support.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
  36         // trigger theme observers
  37         themeWatch.notifyObservers();
  38     }
  39     public static @ColorLong
  40     long hsvaColor(float hue, float saturation, float value, float alpha) {
  41         if (alpha < 0 || alpha > 1)
  42             throw new IllegalArgumentException("alpha must be between 0 and 1");
  43
  44         @ColorLong long rgb = hsvTriplet(hue, saturation, value);
  45
  46         long a_bits = Math.round(255 * alpha);
  47         return (a_bits << 24) | rgb;
  48     }
  49     public static @ColorInt
  50     int hsvColor(float hue, float saturation, float value) {
  51         return 0xff000000 | hsvTriplet(hue, saturation, value);
  52     }
  53     public static @ColorInt
  54     int hsvTriplet(float hue, float saturation, float value) {
  55         @ColorLong long result;
  56         int r, g, b;
  57
  58         if ((hue < 0) || (hue > 1) || (saturation < 0) || (saturation > 1) || (value < 0) ||
  59             (value > 1)) throw new IllegalArgumentException(
  60                 "hue, saturation, value and alpha must all be between 0 and 1");
  61
  62         int h = (int) (hue * 6);
  63         float f = hue * 6 - h;
  64         float p = value * (1 - saturation);
  65         float q = value * (1 - f * saturation);
  66         float t = value * (1 - (1 - f) * saturation);
  67
  68         switch (h) {
  69             case 0:
  70             case 6:
  71                 return tupleToColor(value, t, p);
  72             case 1:
  73                 return tupleToColor(q, value, p);
  74             case 2:
  75                 return tupleToColor(p, value, t);
  76             case 3:
  77                 return tupleToColor(p, q, value);
  78             case 4:
  79                 return tupleToColor(t, p, value);
  80             case 5:
  81                 return tupleToColor(value, p, q);
  82             default:
  83                 throw new RuntimeException(String.format("Unexpected value for h (%d) while " +
  84                                                          "converting hsv(%1.2f, %1.2f, %1.2f) to " +
  85                                                          "rgb", h, hue, saturation, value));
  86         }
  87     }
  88
  89     public static @ColorInt
  90     int tupleToColor(float r, float g, float b) {
  91         int r_int = Math.round(255 * r);
  92         int g_int = Math.round(255 * g);
  93         int b_int = Math.round(255 * b);
  94         return (r_int << 16) | (g_int << 8) | b_int;
  95     }
  96     public static @ColorInt
  97     int getPrimaryColorForHue(int degrees) {
  98         return getPrimaryColorForHue(degrees / 360f);
  99     }
 100     public static @ColorInt
 101     int getPrimaryColorForHue(float hue) {
 102         int result = hsvColor(hue, 0.61f, 0.95f);
 103         Log.d("colors", String.format("getPrimaryColorForHue(%1.2f) = %x", hue, result));
 104         return result;
 105     }
 106     public static void setupTheme(Activity activity) {
 107         MobileLedgerProfile profile = Data.profile.get();
 108         if (profile != null) {
 109             switch (Data.profile.get().getThemeId()) {
 110                 case 0:
 111                     activity.setTheme(R.style.AppTheme_NoActionBar_0);
 112                     break;
 113                 case 15:
 114                     activity.setTheme(R.style.AppTheme_NoActionBar_15);
 115                     break;
 116                 case 30:
 117                     activity.setTheme(R.style.AppTheme_NoActionBar_30);
 118                     break;
 119                 case 45:
 120                     activity.setTheme(R.style.AppTheme_NoActionBar_45);
 121                     break;
 122                 case 60:
 123                     activity.setTheme(R.style.AppTheme_NoActionBar_60);
 124                     break;
 125                 case 75:
 126                     activity.setTheme(R.style.AppTheme_NoActionBar_75);
 127                     break;
 128                 case 90:
 129                     activity.setTheme(R.style.AppTheme_NoActionBar_90);
 130                     break;
 131                 case 105:
 132                     activity.setTheme(R.style.AppTheme_NoActionBar_105);
 133                     break;
 134                 case 120:
 135                     activity.setTheme(R.style.AppTheme_NoActionBar_120);
 136                     break;
 137                 case 135:
 138                     activity.setTheme(R.style.AppTheme_NoActionBar_135);
 139                     break;
 140                 case 150:
 141                     activity.setTheme(R.style.AppTheme_NoActionBar_150);
 142                     break;
 143                 case 165:
 144                     activity.setTheme(R.style.AppTheme_NoActionBar_165);
 145                     break;
 146                 case 180:
 147                     activity.setTheme(R.style.AppTheme_NoActionBar_180);
 148                     break;
 149                 case 195:
 150                     activity.setTheme(R.style.AppTheme_NoActionBar_195);
 151                     break;
 152                 case 210:
 153                     activity.setTheme(R.style.AppTheme_NoActionBar_210);
 154                     break;
 155                 case 225:
 156                     activity.setTheme(R.style.AppTheme_NoActionBar_225);
 157                     break;
 158                 case 240:
 159                     activity.setTheme(R.style.AppTheme_NoActionBar_240);
 160                     break;
 161                 case 255:
 162                     activity.setTheme(R.style.AppTheme_NoActionBar_255);
 163                     break;
 164                 case 270:
 165                     activity.setTheme(R.style.AppTheme_NoActionBar_270);
 166                     break;
 167                 case 285:
 168                     activity.setTheme(R.style.AppTheme_NoActionBar_285);
 169                     break;
 170                 case 300:
 171                     activity.setTheme(R.style.AppTheme_NoActionBar_300);
 172                     break;
 173                 case 315:
 174                     activity.setTheme(R.style.AppTheme_NoActionBar_315);
 175                     break;
 176                 case 330:
 177                     activity.setTheme(R.style.AppTheme_NoActionBar_330);
 178                     break;
 179                 case 345:
 180                     activity.setTheme(R.style.AppTheme_NoActionBar_345);
 181                     break;
 182                 default:
 183                     activity.setTheme(R.style.AppTheme_NoActionBar);
 184             }
 185         }
 186         else activity.setTheme(R.style.AppTheme_NoActionBar);
 187
 188         refreshColors(activity.getTheme());
 189     }
 190
 191 }