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         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) || (hue > 1) || (saturation < 0) || (saturation > 1) || (value < 0) ||
  63             (value > 1)) throw new IllegalArgumentException(
  64                 "hue, saturation, value and alpha must all be between 0 and 1");
  65
  66         int h = (int) (hue * 6);
  67         float f = hue * 6 - h;
  68         float p = value * (1 - saturation);
  69         float q = value * (1 - f * saturation);
  70         float t = value * (1 - (1 - f) * saturation);
  71
  72         switch (h) {
  73             case 0:
  74             case 6:
  75                 return tupleToColor(value, t, p);
  76             case 1:
  77                 return tupleToColor(q, value, p);
  78             case 2:
  79                 return tupleToColor(p, value, t);
  80             case 3:
  81                 return tupleToColor(p, q, value);
  82             case 4:
  83                 return tupleToColor(t, p, value);
  84             case 5:
  85                 return tupleToColor(value, p, q);
  86             default:
  87                 throw new RuntimeException(String.format("Unexpected value for h (%d) while " +
  88                                                          "converting hsv(%1.2f, %1.2f, %1.2f) to " +
  89                                                          "rgb", h, hue, saturation, value));
  90         }
  91     }
  92
  93     public static @ColorInt
  94     int tupleToColor(float r, float g, float b) {
  95         int r_int = Math.round(255 * r);
  96         int g_int = Math.round(255 * g);
  97         int b_int = Math.round(255 * b);
  98         return (r_int << 16) | (g_int << 8) | b_int;
  99     }
 100     public static @ColorInt
 101     int getPrimaryColorForHue(int degrees) {
 102         return getPrimaryColorForHue(degrees / 360f);
 103     }
 104     public static @ColorInt
 105     int getPrimaryColorForHue(float hue) {
 106         int result = hsvColor(hue, 0.61f, 0.95f);
 107         Log.d("colors", String.format("getPrimaryColorForHue(%1.2f) = %x", hue, result));
 108         return result;
 109     }
 110     public static void setupTheme(Activity activity) {
 111         MobileLedgerProfile profile = Data.profile.get();
 112         if (profile != null) {
 113             switch (Data.profile.get().getThemeId()) {
 114                 case 0:
 115                     activity.setTheme(R.style.AppTheme_NoActionBar_0);
 116                     break;
 117                 case 15:
 118                     activity.setTheme(R.style.AppTheme_NoActionBar_15);
 119                     break;
 120                 case 30:
 121                     activity.setTheme(R.style.AppTheme_NoActionBar_30);
 122                     break;
 123                 case 45:
 124                     activity.setTheme(R.style.AppTheme_NoActionBar_45);
 125                     break;
 126                 case 60:
 127                     activity.setTheme(R.style.AppTheme_NoActionBar_60);
 128                     break;
 129                 case 75:
 130                     activity.setTheme(R.style.AppTheme_NoActionBar_75);
 131                     break;
 132                 case 90:
 133                     activity.setTheme(R.style.AppTheme_NoActionBar_90);
 134                     break;
 135                 case 105:
 136                     activity.setTheme(R.style.AppTheme_NoActionBar_105);
 137                     break;
 138                 case 120:
 139                     activity.setTheme(R.style.AppTheme_NoActionBar_120);
 140                     break;
 141                 case 135:
 142                     activity.setTheme(R.style.AppTheme_NoActionBar_135);
 143                     break;
 144                 case 150:
 145                     activity.setTheme(R.style.AppTheme_NoActionBar_150);
 146                     break;
 147                 case 165:
 148                     activity.setTheme(R.style.AppTheme_NoActionBar_165);
 149                     break;
 150                 case 180:
 151                     activity.setTheme(R.style.AppTheme_NoActionBar_180);
 152                     break;
 153                 case 195:
 154                     activity.setTheme(R.style.AppTheme_NoActionBar_195);
 155                     break;
 156                 case 210:
 157                     activity.setTheme(R.style.AppTheme_NoActionBar_210);
 158                     break;
 159                 case 225:
 160                     activity.setTheme(R.style.AppTheme_NoActionBar_225);
 161                     break;
 162                 case 240:
 163                     activity.setTheme(R.style.AppTheme_NoActionBar_240);
 164                     break;
 165                 case 255:
 166                     activity.setTheme(R.style.AppTheme_NoActionBar_255);
 167                     break;
 168                 case 270:
 169                     activity.setTheme(R.style.AppTheme_NoActionBar_270);
 170                     break;
 171                 case 285:
 172                     activity.setTheme(R.style.AppTheme_NoActionBar_285);
 173                     break;
 174                 case 300:
 175                     activity.setTheme(R.style.AppTheme_NoActionBar_300);
 176                     break;
 177                 case 315:
 178                     activity.setTheme(R.style.AppTheme_NoActionBar_315);
 179                     break;
 180                 case 330:
 181                     activity.setTheme(R.style.AppTheme_NoActionBar_330);
 182                     break;
 183                 case 345:
 184                     activity.setTheme(R.style.AppTheme_NoActionBar_345);
 185                     break;
 186                 default:
 187                     activity.setTheme(R.style.AppTheme_NoActionBar);
 188             }
 189         }
 190         else activity.setTheme(R.style.AppTheme_NoActionBar);
 191
 192         refreshColors(activity.getTheme());
 193     }
 194
 195 }