public boolean equals(SgnColor o, int tolerance) {
if (this == o) return true;
if (o == null) return false;
if (mColor == o.mColor) {
return true;
}
if (tolerance == 0) {
return false;
}
int r1 = Color.red(mColor);
int g1 = Color.green(mColor);
int b1 = Color.blue(mColor);
int a1 = Color.alpha(mColor);
int r2 = Color.red(o.mColor);
int g2 = Color.green(o.mColor);
int b2 = Color.blue(o.mColor);
int a2 = Color.alpha(o.mColor);
return Math.abs(r1 - r2) <= tolerance
&& Math.abs(g1 - g2) <= tolerance
&& Math.abs(b1 - b2) <= tolerance
&& Math.abs(a1 - a2) <= tolerance;
}
/**
* Calculate the color using the supplied angle.
*
* @param angle The selected color's position expressed as angle (in rad).
* @return The ARGB value of the color on the color wheel at the specified angle.
*/
private int calculateColor(float angle) {
float unit = (float) (angle / (2 * Math.PI));
if (unit < 0) {
unit += 1;
}
if (unit <= 0) {
mColor = COLORS[0];
return COLORS[0];
}
if (unit >= 1) {
mColor = COLORS[COLORS.length - 1];
return COLORS[COLORS.length - 1];
}
float p = unit * (COLORS.length - 1);
int i = (int) p;
p -= i;
int c0 = COLORS[i];
int c1 = COLORS[i + 1];
int a = ave(Color.alpha(c0), Color.alpha(c1), p);
int r = ave(Color.red(c0), Color.red(c1), p);
int g = ave(Color.green(c0), Color.green(c1), p);
int b = ave(Color.blue(c0), Color.blue(c1), p);
mColor = Color.argb(a, r, g, b);
return Color.argb(a, r, g, b);
}
@Override
public void draw(Canvas canvas) {
if (!isRunning()) fillCanvas(canvas, mCurColor, mCurColorTransparent);
else {
ColorChangeTask task = mTasks[mCurTask];
if (mAnimProgress == 0f) fillCanvas(canvas, mCurColor, mCurColorTransparent);
else if (mAnimProgress == 1f) fillCanvas(canvas, task.color, mNextColorTransparent);
else if (task.isOut) {
float radius = mMaxRadius * task.interpolator.getInterpolation(mAnimProgress);
if (Color.alpha(task.color) == 255) fillCanvas(canvas, mCurColor, mCurColorTransparent);
else fillCanvasWithHole(canvas, task, radius, mCurColorTransparent);
fillCircle(canvas, task.x, task.y, radius, task.color, mNextColorTransparent);
} else {
float radius = mMaxRadius * task.interpolator.getInterpolation(mAnimProgress);
if (Color.alpha(mCurColor) == 255) fillCanvas(canvas, task.color, mNextColorTransparent);
else fillCanvasWithHole(canvas, task, radius, mNextColorTransparent);
fillCircle(canvas, task.x, task.y, radius, mCurColor, mCurColorTransparent);
}
}
}
protected int getGradientPartialColor(int minColor, int maxColor, float fraction) {
int alpha =
Math.round(fraction * Color.alpha(minColor) + (1 - fraction) * Color.alpha(maxColor));
int r = Math.round(fraction * Color.red(minColor) + (1 - fraction) * Color.red(maxColor));
int g = Math.round(fraction * Color.green(minColor) + (1 - fraction) * Color.green(maxColor));
int b = Math.round(fraction * Color.blue(minColor) + (1 - fraction) * Color.blue((maxColor)));
return Color.argb(alpha, r, g, b);
}
/** Return a {@link Color} that is (1-p) like {@code from} and p like {@code to}. */
public static int blend(int from, int to, float weigh) {
int a = (int) ((1 - weigh) * Color.alpha(from) + weigh * Color.alpha(to));
int r = (int) ((1 - weigh) * Color.red(from) + weigh * Color.red(to));
int g = (int) ((1 - weigh) * Color.green(from) + weigh * Color.green(to));
int b = (int) ((1 - weigh) * Color.blue(from) + weigh * Color.blue(to));
return Color.argb(a, r, g, b);
}
private void resetAnimation() {
mStartTime = SystemClock.uptimeMillis();
mAnimProgress = 0f;
mCurColorTransparent = Color.alpha(mCurColor) == 0;
mNextColorTransparent = Color.alpha(mTasks[mCurTask].color) == 0;
mMaxRadius = getMaxRadius(mTasks[mCurTask].x, mTasks[mCurTask].y, getBounds());
mShader = null;
}
private static int blendColors(int color1, int color2, float factor) {
final float inverseFactor = 1f - factor;
float a = (Color.alpha(color1) * factor) + (Color.alpha(color2) * inverseFactor);
float r = (Color.red(color1) * factor) + (Color.red(color2) * inverseFactor);
float g = (Color.green(color1) * factor) + (Color.green(color2) * inverseFactor);
float b = (Color.blue(color1) * factor) + (Color.blue(color2) * inverseFactor);
return Color.argb((int) a, (int) r, (int) g, (int) b);
}
/**
* @param from color value in the form 0xAARRGGBB.
* @param to color value in the form 0xAARRGGBB.
*/
public static int getGradientColor(int from, int to, float factor) {
int r =
calculateGradient(
Color.red(from), Color.red(to), factor); // It's so annoying without lambda.
int g = calculateGradient(Color.green(from), Color.green(to), factor);
int b = calculateGradient(Color.blue(from), Color.blue(to), factor);
int a = calculateGradient(Color.alpha(from), Color.alpha(to), factor);
return Color.argb(a, r, g, b);
}
public static int getMiddleColor(int prevColor, int curColor, float factor) {
if (prevColor == curColor) return curColor;
if (factor == 0f) return prevColor;
else if (factor == 1f) return curColor;
int a = getMiddleValue(Color.alpha(prevColor), Color.alpha(curColor), factor);
int r = getMiddleValue(Color.red(prevColor), Color.red(curColor), factor);
int g = getMiddleValue(Color.green(prevColor), Color.green(curColor), factor);
int b = getMiddleValue(Color.blue(prevColor), Color.blue(curColor), factor);
return Color.argb(a, r, g, b);
}
@ColorInt
private static int blendColors(
@ColorInt int color1, @ColorInt int color2, @FloatRange(from = 0f, to = 1f) float ratio) {
final float inverseRatio = 1f - ratio;
float a = (Color.alpha(color1) * inverseRatio) + (Color.alpha(color2) * ratio);
float r = (Color.red(color1) * inverseRatio) + (Color.red(color2) * ratio);
float g = (Color.green(color1) * inverseRatio) + (Color.green(color2) * ratio);
float b = (Color.blue(color1) * inverseRatio) + (Color.blue(color2) * ratio);
return Color.argb((int) a, (int) r, (int) g, (int) b);
}
/** Composite two potentially translucent colors over each other and returns the result. */
public static int compositeColors(int foreground, int background) {
final float alpha1 = Color.alpha(foreground) / 255f;
final float alpha2 = Color.alpha(background) / 255f;
float a = (alpha1 + alpha2) * (1f - alpha1);
float r = (Color.red(foreground) * alpha1) + (Color.red(background) * alpha2 * (1f - alpha1));
float g =
(Color.green(foreground) * alpha1) + (Color.green(background) * alpha2 * (1f - alpha1));
float b = (Color.blue(foreground) * alpha1) + (Color.blue(background) * alpha2 * (1f - alpha1));
return Color.argb((int) a, (int) r, (int) g, (int) b);
}
/**
* Returns the contrast ratio between {@code foreground} and {@code background}. {@code
* background} must be opaque.
*
* <p>Formula defined <a
* href="http://www.w3.org/TR/2008/REC-WCAG20-20081211/#contrast-ratiodef">here</a>.
*/
public static double calculateContrast(int foreground, int background) {
if (Color.alpha(background) != 255) {
throw new IllegalArgumentException("background can not be translucent");
}
if (Color.alpha(foreground) < 255) {
// If the foreground is translucent, composite the foreground over the background
foreground = compositeColors(foreground, background);
}
final double luminance1 = calculateLuminance(foreground) + 0.05;
final double luminance2 = calculateLuminance(background) + 0.05;
// Now return the lighter luminance divided by the darker luminance
return Math.max(luminance1, luminance2) / Math.min(luminance1, luminance2);
}
/**
* Calculate the color selected by the pointer on the bar.
*
* @param coord Coordinate of the pointer.
*/
private void calculateColor(int coord) {
coord = coord - mBarPointerHaloRadius;
if (coord < 0) {
coord = 0;
} else if (coord > mBarLength) {
coord = mBarLength;
}
mColor = Color.HSVToColor(Math.round(mPosToOpacFactor * coord), mHSVColor);
if (Color.alpha(mColor) > 250) {
mColor = Color.HSVToColor(mHSVColor);
} else if (Color.alpha(mColor) < 5) {
mColor = Color.TRANSPARENT;
}
}
@Override
public synchronized void onDrawFrame(GL10 gl) {
mObserver.onDrawFrame();
if (mBackgroundColorChanged) {
gl.glClearColor(
Color.red(mBackgroundColor) / 255f,
Color.green(mBackgroundColor) / 255f,
Color.blue(mBackgroundColor) / 255f,
Color.alpha(mBackgroundColor) / 255f);
mBackgroundColorChanged = false;
}
gl.glClear(GL10.GL_COLOR_BUFFER_BIT); // | GL10.GL_DEPTH_BUFFER_BIT);
gl.glLoadIdentity();
if (USE_PERSPECTIVE_PROJECTION) {
gl.glTranslatef(0, 0, -6f);
}
for (int i = 0; i < mCurlMeshes.size(); ++i) {
mCurlMeshes.get(i).draw(gl);
}
}
public static int getDarkerColor(int color) {
int alpha = Color.alpha(color);
int red = Color.red(color);
int green = Color.green(color);
int blue = Color.blue(color);
return Color.argb(alpha, (int) (red * 0.9), (int) (green * 0.9), (int) (blue * 0.9));
}
/**
* Sets the background color of the scene.
*
* @param color Android color integer.
*/
public void setBackgroundColor(int color) {
setBackgroundColor(
Color.red(color) / 255f,
Color.green(color) / 255f,
Color.blue(color) / 255f,
Color.alpha(color) / 255f);
}
/**
* Get the white icon corresponding to a poiType.
*
* @param poiType the PoiType or null for notes.
* @return The white icon.
*/
public Drawable getIconWhite(PoiType poiType) {
Bitmap myBitmap =
BitmapFactory.decodeResource(
context.getResources(),
poiType == null ? R.drawable.open_book : getIconDrawableId(poiType));
myBitmap = myBitmap.copy(myBitmap.getConfig(), true);
int[] allpixels = new int[myBitmap.getHeight() * myBitmap.getWidth()];
myBitmap.getPixels(
allpixels, 0, myBitmap.getWidth(), 0, 0, myBitmap.getWidth(), myBitmap.getHeight());
for (int i = 0; i < myBitmap.getHeight() * myBitmap.getWidth(); i++) {
if (allpixels[i] != 0) {
int A = Color.alpha(allpixels[i]);
// inverting byte for each R/G/B channel
int R = 255 - Color.red(allpixels[i]);
int G = 255 - Color.green(allpixels[i]);
int B = 255 - Color.blue(allpixels[i]);
// set newly-inverted pixel to output image
allpixels[i] = Color.argb(A, R, G, B);
}
}
myBitmap.setPixels(
allpixels, 0, myBitmap.getWidth(), 0, 0, myBitmap.getWidth(), myBitmap.getHeight());
return new BitmapDrawable(context.getResources(), myBitmap);
}
private int rotateColor(int color, float rad) {
float deg = rad * 180 / 3.1415927f;
int r = Color.red(color);
int g = Color.green(color);
int b = Color.blue(color);
ColorMatrix cm = new ColorMatrix();
ColorMatrix tmp = new ColorMatrix();
cm.setRGB2YUV();
tmp.setRotate(0, deg);
cm.postConcat(tmp);
tmp.setYUV2RGB();
cm.postConcat(tmp);
final float[] a = cm.getArray();
int ir = floatToByte(a[0] * r + a[1] * g + a[2] * b);
int ig = floatToByte(a[5] * r + a[6] * g + a[7] * b);
int ib = floatToByte(a[10] * r + a[11] * g + a[12] * b);
return Color.argb(
Color.alpha(color), pinToByte(ir),
pinToByte(ig), pinToByte(ib));
}
private static int argbColor(int colorResource) {
return Color.argb(
Color.alpha(colorResource),
Color.red(colorResource),
Color.green(colorResource),
Color.blue(colorResource));
}
/**
* The material's diffuse color. This can be overwritten by {@link Object3D#setColor(int)}. This
* color will be applied to the whole object. For vertex colors use {@link
* Material#useVertexColors(boolean)} and {@link Material#setVertexColors(int)}.
*
* @param int color The color to be used. Color.RED for instance. Or 0xffff0000.
*/
public void setColor(int color) {
mColor[0] = (float) Color.red(color) / 255.f;
mColor[1] = (float) Color.green(color) / 255.f;
mColor[2] = (float) Color.blue(color) / 255.f;
mColor[3] = (float) Color.alpha(color) / 255.f;
if (mVertexShader != null) mVertexShader.setColor(mColor);
}
private int getInverseColor(int color) {
int red = Color.red(color);
int green = Color.green(color);
int blue = Color.blue(color);
int alpha = Color.alpha(color);
return Color.argb(alpha, 255 - red, 255 - green, 255 - blue);
}
private int changeColorAlpha(int color, float value) {
int alpha = Math.round(Color.alpha(color) * value);
int red = Color.red(color);
int green = Color.green(color);
int blue = Color.blue(color);
return Color.argb(alpha, red, green, blue);
}
/**
* Adjust the line width used when the hide animation is taking place. This will reduce the line
* width from the original width to nothing over time. At the same this the alpha of the line will
* be reduced to nothing
*/
protected void processRevealEffect() {
if ((mDrawMode != DecoEvent.EventType.EVENT_HIDE)
&& (mDrawMode != DecoEvent.EventType.EVENT_SHOW)) {
return;
}
float lineWidth = mSeriesItem.getLineWidth();
if (mPercentComplete > 0) {
lineWidth *= (1.0f - mPercentComplete);
mPaint.setAlpha((int) (Color.alpha(mSeriesItem.getColor()) * (1.0f - mPercentComplete)));
} else {
mPaint.setAlpha(Color.alpha(mSeriesItem.getColor()));
}
mPaint.setStrokeWidth(lineWidth);
}
public void refresh() {
int alpha = Color.alpha(mButtonColor);
float[] hsv = new float[3];
Color.colorToHSV(mButtonColor, hsv);
hsv[2] *= 0.8f; // value component
// if shadow color was not defined, generate shadow color = 80% brightness
if (!isShadowColorDefined) {
mShadowColor = Color.HSVToColor(alpha, hsv);
}
// Create pressed background and unpressed background drawables
if (this.isEnabled()) {
if (isShadowEnabled) {
pressedDrawable = createDrawable(mCornerRadius, Color.TRANSPARENT, mButtonColor);
unpressedDrawable = createDrawable(mCornerRadius, mButtonColor, mShadowColor);
} else {
mShadowHeight = 0;
pressedDrawable = createDrawable(mCornerRadius, mShadowColor, Color.TRANSPARENT);
unpressedDrawable = createDrawable(mCornerRadius, mButtonColor, Color.TRANSPARENT);
}
} else {
Color.colorToHSV(mButtonColor, hsv);
hsv[1] *= 0.25f; // saturation component
int disabledColor = mShadowColor = Color.HSVToColor(alpha, hsv);
// Disabled button does not have shadow
pressedDrawable = createDrawable(mCornerRadius, disabledColor, Color.TRANSPARENT);
unpressedDrawable = createDrawable(mCornerRadius, disabledColor, Color.TRANSPARENT);
}
updateBackground(unpressedDrawable);
// Set padding
this.setPadding(
mPaddingLeft, mPaddingTop + mShadowHeight, mPaddingRight, mPaddingBottom + mShadowHeight);
}
/**
* Set the color to be highlighted by the pointer. </br> </br> If the instances {@code SVBar} and
* the {@code OpacityBar} aren't null the color will also be set to them
*
* @param color The RGB value of the color to highlight. If this is not a color displayed on the
* color wheel a very simple algorithm is used to map it to the color wheel. The resulting
* color often won't look close to the original color. This is especially true for shades of
* grey. You have been warned!
*/
public void setColor(int color) {
mAngle = colorToAngle(color);
mPointerColor.setColor(calculateColor(mAngle));
// check of the instance isn't null
if (mOpacityBar != null) {
// set the value of the opacity
mOpacityBar.setColor(mColor);
mOpacityBar.setOpacity(Color.alpha(color));
}
// check if the instance isn't null
if (mSVbar != null) {
// the array mHSV will be filled with the HSV values of the color.
Color.colorToHSV(color, mHSV);
mSVbar.setColor(mColor);
// because of the design of the Saturation/Value bar,
// we can only use Saturation or Value every time.
// Here will be checked which we shall use.
if (mHSV[1] < mHSV[2]) {
mSVbar.setSaturation(mHSV[1]);
} else { // if (mHSV[1] > mHSV[2]) {
mSVbar.setValue(mHSV[2]);
}
}
invalidate();
}
private void initBackgroundDimAnimation() {
final int maxAlpha = Color.alpha(mBackgroundColor);
final int red = Color.red(mBackgroundColor);
final int green = Color.green(mBackgroundColor);
final int blue = Color.blue(mBackgroundColor);
mShowBackgroundAnimator = ValueAnimator.ofInt(0, maxAlpha);
mShowBackgroundAnimator.setDuration(ANIMATION_DURATION);
mShowBackgroundAnimator.addUpdateListener(
new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
Integer alpha = (Integer) animation.getAnimatedValue();
setBackgroundColor(Color.argb(alpha, red, green, blue));
}
});
mHideBackgroundAnimator = ValueAnimator.ofInt(maxAlpha, 0);
mHideBackgroundAnimator.setDuration(ANIMATION_DURATION);
mHideBackgroundAnimator.addUpdateListener(
new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
Integer alpha = (Integer) animation.getAnimatedValue();
setBackgroundColor(Color.argb(alpha, red, green, blue));
}
});
}
public static Bitmap doColorFilter(Bitmap src, double red, double green, double blue) {
// image size
int width = src.getWidth();
int height = src.getHeight();
// create output bitmap
Bitmap bmOut = Bitmap.createBitmap(width, height, src.getConfig());
// color information
int A, R, G, B;
int pixel;
// scan through all pixels
for (int x = 0; x < width; ++x) {
for (int y = 0; y < height; ++y) {
// get pixel color
pixel = src.getPixel(x, y);
// apply filtering on each channel R, G, B
A = Color.alpha(pixel);
R = (int) (Color.red(pixel) * red);
G = (int) (Color.green(pixel) * green);
B = (int) (Color.blue(pixel) * blue);
// set new color pixel to output bitmap
bmOut.setPixel(x, y, Color.argb(A, R, G, B));
}
}
// return final image
return bmOut;
}
public void setCurColor(int color) {
if (mCurColor != color) {
mCurColor = color;
mCurColorTransparent = Color.alpha(mCurColor) == 0;
invalidateSelf();
}
}
@SuppressWarnings("NullableProblems")
@Override
protected void onDraw(Canvas canvas) {
// Draw Title Text
if (mAttributes.isShowTitle()
&& mTitlePaint != null
&& mCurTitleProperty != null
&& mCurTitleProperty.mAlpha != 0) {
CharSequence buf = getHint();
if (buf != null) {
mTitlePaint.setTextSize(mCurTitleProperty.mTextSize);
int color = getCurrentTitleTextColor();
int alpha = GeniusUi.modulateAlpha(Color.alpha(color), mCurTitleProperty.mAlpha);
mTitlePaint.setColor(color);
mTitlePaint.setAlpha(alpha);
canvas.drawText(
buf,
0,
buf.length(),
mCurTitleProperty.mPaddingLeft,
mCurTitleProperty.mPaddingTop + mCurTitleProperty.mTextSize,
mTitlePaint);
}
}
super.onDraw(canvas);
}
private int getHighlightColor(int color, int amount) {
return Color.argb(
Math.min(255, Color.alpha(color)),
Math.min(255, Color.red(color) + amount),
Math.min(255, Color.green(color) + amount),
Math.min(255, Color.blue(color) + amount));
}
