import androidx.annotation.NonNull;
import androidx.lifecycle.MutableLiveData;
+import net.ktnx.mobileledger.BuildConfig;
import net.ktnx.mobileledger.R;
import net.ktnx.mobileledger.model.Data;
import net.ktnx.mobileledger.model.MobileLedgerProfile;
public class Colors {
public static final int DEFAULT_HUE_DEG = 261;
public static final int THEME_HUE_STEP_DEG = 5;
+ public static final int baseHueStep = 60;
private static final float blueLightness = 0.665f;
private static final float yellowLightness = 0.350f;
private static final int[][] EMPTY_STATES = new int[][]{new int[0]};
@ColorInt
public static int tableRowDarkBG;
@ColorInt
- public static int primary, defaultTextColor;
+ public static int primary, defaultTextColor, defaultTextColorDisabled;
public static int profileThemeId = -1;
public static MutableLiveData<Integer> themeWatch = new MutableLiveData<>(0);
+ public static int errorTextColor;
private static int[] themeIDs =
{R.style.AppTheme_NoActionBar_000, R.style.AppTheme_NoActionBar_005,
R.style.AppTheme_NoActionBar_010, R.style.AppTheme_NoActionBar_015,
primary = tv.data;
theme.resolveAttribute(R.attr.textColor, tv, true);
defaultTextColor = tv.data;
+ defaultTextColorDisabled = 0x7f000000 | 0x00ffffff & defaultTextColor;
theme.resolveAttribute(R.attr.colorAccent, tv, true);
accent = tv.data;
+ theme.resolveAttribute(R.attr.errorTextColor, tv, true);
+ errorTextColor = tv.data;
// trigger theme observers
themeWatch.postValue(themeWatch.getValue() + 1);
}
- public static @ColorLong
- long hsvaColor(float hue, float saturation, float value, float alpha) {
- if (alpha < 0 || alpha > 1)
- throw new IllegalArgumentException("alpha must be between 0 and 1");
-
- @ColorLong long rgb = hsvTriplet(hue, saturation, value);
-
- long a_bits = Math.round(255 * alpha);
- return (a_bits << 24) | rgb;
- }
- public static @ColorInt
- int hsvColor(float hue, float saturation, float value) {
- return 0xff000000 | hsvTriplet(hue, saturation, value);
- }
public static @ColorInt
int hslColor(float hueRatio, float saturation, float lightness) {
return 0xff000000 | hslTriplet(hueRatio, saturation, lightness);
}
public static @ColorInt
- int hsvTriplet(float hue, float saturation, float value) {
- @ColorLong long result;
- int r, g, b;
-
- if ((hue < -0.00005) || (hue > 1.0000005) || (saturation < 0) || (saturation > 1) ||
- (value < 0) || (value > 1))
- throw new IllegalArgumentException(String.format(
- "hue, saturation, value and alpha must all be between 0 and 1. Arguments " +
- "given: " + "hue=%1.5f, sat=%1.5f, val=%1.5f", hue, saturation, value));
-
- int h = (int) (hue * 6);
- float f = hue * 6 - h;
- float p = value * (1 - saturation);
- float q = value * (1 - f * saturation);
- float t = value * (1 - (1 - f) * saturation);
-
- switch (h) {
- case 0:
- case 6:
- return tupleToColor(value, t, p);
- case 1:
- return tupleToColor(q, value, p);
- case 2:
- return tupleToColor(p, value, t);
- case 3:
- return tupleToColor(p, q, value);
- case 4:
- return tupleToColor(t, p, value);
- case 5:
- return tupleToColor(value, p, q);
- default:
- throw new RuntimeException(String.format("Unexpected value for h (%d) while " +
- "converting hsv(%1.2f, %1.2f, %1.2f) to " +
- "rgb", h, hue, saturation, value));
- }
- }
- public static @ColorInt
int hslTriplet(float hueRatio, float saturation, float lightness) {
@ColorLong long result;
float h = hueRatio * 6;
"Unexpected value for h (%1.3f) while converting hsl(%1.3f, %1.3f, %1.3f) to rgb",
h, hueRatio, saturation, lightness));
}
-
public static @ColorInt
int tupleToColor(float r, float g, float b) {
int r_int = Math.round(255 * r);
int b_int = Math.round(255 * b);
return (r_int << 16) | (g_int << 8) | b_int;
}
+ public static float baseHueLightness(int baseHueDegrees) {
+ switch (baseHueDegrees % 360) {
+ case 0:
+ return 0.450f; // red
+ case 60:
+ return 0.400f; // yellow
+ case 120:
+ return 0.400f; // green
+ case 180:
+ return 0.400f; // cyan
+ case 240:
+ return 0.750f; // blue
+ case 300:
+ return 0.500f; // magenta
+ default:
+ throw new IllegalStateException(
+ String.format(Locale.US, "baseHueLightness called with invalid value %d",
+ baseHueDegrees));
+ }
+ }
+ public static float hueLightness(int hueDegrees) {
+ int mod = hueDegrees % baseHueStep;
+ int x0 = hueDegrees - mod;
+ int x1 = x0 + baseHueStep;
+
+ float y0 = baseHueLightness(x0);
+ float y1 = baseHueLightness(x1);
+
+ return y0 + (hueDegrees - x0) * (y1 - y0) / (x1 - x0);
+ }
public static @ColorInt
int getPrimaryColorForHue(int hueDegrees) {
-// int result = hsvColor(hueDegrees, 0.61f, 0.95f);
- float y = hueDegrees - 60;
- if (y < 0)
- y += 360;
- float l = yellowLightness + (blueLightness - yellowLightness) *
- (float) Math.cos(Math.toRadians(Math.abs(180 - y) / 2f));
- int result = hslColor(hueDegrees / 360f, 0.845f, l);
+ int result = hslColor(hueDegrees / 360f, 0.845f, hueLightness(hueDegrees));
debug("colors", String.format(Locale.ENGLISH, "getPrimaryColorForHue(%d) = %x", hueDegrees,
result));
return result;
final int themeHue = (profile == null) ? -1 : profile.getThemeHue();
setupTheme(activity, themeHue);
}
- public static void setupTheme(Activity activity, int themeHue) {
+ public static int getThemeIdForHue(int themeHue) {
int themeId = -1;
if (themeHue == 360)
themeHue = 0;
}
if (themeId < 0) {
- activity.setTheme(R.style.AppTheme_NoActionBar);
+ themeId = R.style.AppTheme_NoActionBar;
debug("profiles",
String.format(Locale.ENGLISH, "Theme hue %d not supported, using the default",
themeHue));
}
- else {
- activity.setTheme(themeId);
- }
+
+ return themeId;
+ }
+ public static void setupTheme(Activity activity, int themeHue) {
+ int themeId = getThemeIdForHue(themeHue);
+ activity.setTheme(themeId);
refreshColors(activity.getTheme());
}
hues.add(hue);
}
Collections.sort(hues);
+ if (BuildConfig.DEBUG) {
+ StringBuilder huesSB = new StringBuilder();
+ for (int h : hues) {
+ if (huesSB.length() > 0)
+ huesSB.append(", ");
+ huesSB.append(String.valueOf(h));
+ }
+ debug("profiles", String.format("used hues: %s", huesSB.toString()));
+ }
hues.add(hues.get(0));
int lastHue = -1;
final int chosenIndex = (int) (Math.random() * largestIntervalStarts.size());
int chosenIntervalStart = largestIntervalStarts.get(chosenIndex);
+ debug("profiles",
+ String.format(Locale.US, "Choosing the middle colour between %d and %d",
+ chosenIntervalStart, chosenIntervalStart + largestInterval));
+
if (largestInterval % 2 != 0)
largestInterval++; // round up the middle point
chosenHue -= mod; // 12 -= 2 = 10
}
+ debug("profiles", String.format(Locale.US, "New profile hue: %d", chosenHue));
+
return chosenHue;
}
}