Examples with Shader android.graphics.Shader used on opensource projects

Example 66 with Shader

use of android.graphics.Shader in project incubator-weex by apache.

the class WXResourceUtils method getShader.

/**
 * Assembly gradients
 * @param image gradient values contains direction、colors
 * @param width component width
 * @param height component height
 * @return gradient shader
 */
public static Shader getShader(String image, float width, float height) {
    List<String> valueList = parseGradientValues(image);
    if (valueList != null && valueList.size() == 3) {
        float[] points = parseGradientDirection(valueList.get(0), width, height);
        Shader shader = new LinearGradient(points[0], points[1], points[2], points[3], getColor(valueList.get(1), Color.WHITE), getColor(valueList.get(2), Color.WHITE), Shader.TileMode.REPEAT);
        return shader;
    }
    return null;
}

Example 67 with Shader

use of android.graphics.Shader in project CameraButton by hluhovskyi.

the class CameraButton method invalidateIcons.

private void invalidateIcons() {
    mIconMatrices = new Matrix[mIconShaders.length];
    mIconPaints = new Paint[mIconShaders.length];
    for (int i = 0; i < mIconShaders.length; i++) {
        Shader shader = mIconShaders[i];
        Matrix matrix = new Matrix();
        shader.setLocalMatrix(matrix);
        mIconMatrices[i] = matrix;
        Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
        paint.setShader(shader);
        mIconPaints[i] = paint;
    }
}

Example 68 with Shader

use of android.graphics.Shader in project TicktockMusic by Lauzy.

the class ScrimUtil method makeCubicGradientScrimDrawable.

/**
 * Creates an approximated cubic gradient using a multi-stop linear gradient. See
 * <a href="https://plus.google.com/+RomanNurik/posts/2QvHVFWrHZf">this post</a> for more
 * details.
 */
public static Drawable makeCubicGradientScrimDrawable(int baseColor, int numStops, int gravity) {
    // Generate a cache key by hashing together the inputs, based on the method described in the Effective Java book
    int cacheKeyHash = baseColor;
    cacheKeyHash = 31 * cacheKeyHash + numStops;
    cacheKeyHash = 31 * cacheKeyHash + gravity;
    Drawable cachedGradient = cubicGradientScrimCache.get(cacheKeyHash);
    if (cachedGradient != null) {
        return cachedGradient;
    }
    numStops = Math.max(numStops, 2);
    PaintDrawable paintDrawable = new PaintDrawable();
    paintDrawable.setShape(new RectShape());
    final int[] stopColors = new int[numStops];
    int red = Color.red(baseColor);
    int green = Color.green(baseColor);
    int blue = Color.blue(baseColor);
    int alpha = Color.alpha(baseColor);
    for (int i = 0; i < numStops; i++) {
        float x = i * 1f / (numStops - 1);
        float opacity = MathUtil.constrain(0, 1, (float) Math.pow(x, 3));
        stopColors[i] = Color.argb((int) (alpha * opacity), red, green, blue);
    }
    final float x0, x1, y0, y1;
    switch(gravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
        case Gravity.LEFT:
            x0 = 1;
            x1 = 0;
            break;
        case Gravity.RIGHT:
            x0 = 0;
            x1 = 1;
            break;
        default:
            x0 = 0;
            x1 = 0;
            break;
    }
    switch(gravity & Gravity.VERTICAL_GRAVITY_MASK) {
        case Gravity.TOP:
            y0 = 1;
            y1 = 0;
            break;
        case Gravity.BOTTOM:
            y0 = 0;
            y1 = 1;
            break;
        default:
            y0 = 0;
            y1 = 0;
            break;
    }
    paintDrawable.setShaderFactory(new ShapeDrawable.ShaderFactory() {

        @Override
        public Shader resize(int width, int height) {
            return new LinearGradient(width * x0, height * y0, width * x1, height * y1, stopColors, null, Shader.TileMode.CLAMP);
        }
    });
    cubicGradientScrimCache.put(cacheKeyHash, paintDrawable);
    return paintDrawable;
}

Example 69 with Shader

use of android.graphics.Shader in project android_packages_apps_Gallery2 by LineageOS.

the class ColorOpacityView method updatePaint.

private void updatePaint() {
    int color2 = Color.HSVToColor(mHSVO);
    int color1 = color2 & 0xFFFFFF;
    Shader sg = new LinearGradient(mBorder, mBorder, mWidth - mBorder, mBorder, color1, color2, Shader.TileMode.CLAMP);
    mBarPaint1.setShader(sg);
}

Example 70 with Shader

use of android.graphics.Shader in project android_packages_apps_Gallery2 by LineageOS.

the class ColorSaturationView method updatePaint.

private void updatePaint() {
    float[] hsvo = Arrays.copyOf(mHSVO, 4);
    hsvo[3] = 1;
    hsvo[2] = 1;
    hsvo[1] = 1;
    int color2 = Color.HSVToColor(hsvo);
    hsvo[1] = 0;
    int color1 = Color.HSVToColor(hsvo);
    Shader sg = new LinearGradient(mBorder, mBorder, mWidth - mBorder, mBorder, color1, color2, Shader.TileMode.CLAMP);
    mBarPaint1.setShader(sg);
}