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

Example 26 with BitmapShader

use of android.graphics.BitmapShader in project WaveLoadingView by tangqi92.

the class WaveLoadingView method updateWaveShader.

private void updateWaveShader() {
    // http://stackoverflow.com/questions/17605662/illegalargumentexception-width-and-height-must-be-0-while-loading-bitmap-from
    if (bitmapBuffer == null || haveBoundsChanged()) {
        if (bitmapBuffer != null)
            bitmapBuffer.recycle();
        int width = getMeasuredWidth();
        int height = getMeasuredHeight();
        if (width > 0 && height > 0) {
            double defaultAngularFrequency = 2.0f * Math.PI / DEFAULT_WAVE_LENGTH_RATIO / width;
            float defaultAmplitude = height * DEFAULT_AMPLITUDE_RATIO;
            mDefaultWaterLevel = height * DEFAULT_WATER_LEVEL_RATIO;
            float defaultWaveLength = width;
            Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            Canvas canvas = new Canvas(bitmap);
            Paint wavePaint = new Paint();
            wavePaint.setStrokeWidth(2);
            wavePaint.setAntiAlias(true);
            // Draw default waves into the bitmap.
            // y=Asin(ωx+φ)+h
            final int endX = width + 1;
            final int endY = height + 1;
            float[] waveY = new float[endX];
            wavePaint.setColor(adjustAlpha(mWaveColor, 0.3f));
            for (int beginX = 0; beginX < endX; beginX++) {
                double wx = beginX * defaultAngularFrequency;
                float beginY = (float) (mDefaultWaterLevel + defaultAmplitude * Math.sin(wx));
                canvas.drawLine(beginX, beginY, beginX, endY, wavePaint);
                waveY[beginX] = beginY;
            }
            wavePaint.setColor(mWaveColor);
            final int wave2Shift = (int) (defaultWaveLength / 4);
            for (int beginX = 0; beginX < endX; beginX++) {
                canvas.drawLine(beginX, waveY[(beginX + wave2Shift) % endX], beginX, endY, wavePaint);
            }
            // Use the bitamp to create the shader.
            mWaveShader = new BitmapShader(bitmap, Shader.TileMode.REPEAT, Shader.TileMode.CLAMP);
            this.mWavePaint.setShader(mWaveShader);
        }
    }
}

Example 27 with BitmapShader

use of android.graphics.BitmapShader in project 9GAG by stormzhang.

the class TitanicTextView method createShader.

/**
     * Create the shader
     * draw the wave with current color for a background
     * repeat the bitmap horizontally, and clamp colors vertically
     */
private void createShader() {
    if (wave == null) {
        wave = getResources().getDrawable(R.drawable.wave);
    }
    int waveW = wave.getIntrinsicWidth();
    int waveH = wave.getIntrinsicHeight();
    Bitmap b = Bitmap.createBitmap(waveW, waveH, Bitmap.Config.ARGB_8888);
    Canvas c = new Canvas(b);
    c.drawColor(getCurrentTextColor());
    wave.setBounds(0, 0, waveW, waveH);
    wave.draw(c);
    shader = new BitmapShader(b, Shader.TileMode.REPEAT, Shader.TileMode.CLAMP);
    getPaint().setShader(shader);
    offsetY = (getHeight() - waveH) / 2;
}

Example 28 with BitmapShader

use of android.graphics.BitmapShader in project InstaMaterial by frogermcs.

the class RoundedTransformation method transform.

@Override
public Bitmap transform(Bitmap source) {
    int size = Math.min(source.getWidth(), source.getHeight());
    int x = (source.getWidth() - size) / 2;
    int y = (source.getHeight() - size) / 2;
    Bitmap squaredBitmap = Bitmap.createBitmap(source, x, y, size, size);
    if (squaredBitmap != source) {
        source.recycle();
    }
    Bitmap bitmap = Bitmap.createBitmap(size, size, source.getConfig());
    Canvas canvas = new Canvas(bitmap);
    Paint paint = new Paint();
    BitmapShader shader = new BitmapShader(squaredBitmap, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP);
    paint.setShader(shader);
    paint.setAntiAlias(true);
    float r = size / 2f;
    canvas.drawCircle(r, r, r, paint);
    squaredBitmap.recycle();
    return bitmap;
}

Example 29 with BitmapShader

use of android.graphics.BitmapShader in project CloudReader by youlookwhat.

the class GlideCircleTransform method circleCrop.

private static Bitmap circleCrop(BitmapPool pool, Bitmap source) {
    if (source == null)
        return null;
    int size = Math.min(source.getWidth(), source.getHeight());
    int x = (source.getWidth() - size) / 2;
    int y = (source.getHeight() - size) / 2;
    // TODO this could be acquired from the pool too
    Bitmap squared = Bitmap.createBitmap(source, x, y, size, size);
    Bitmap result = pool.get(size, size, Bitmap.Config.ARGB_8888);
    if (result == null) {
        result = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
    }
    Canvas canvas = new Canvas(result);
    Paint paint = new Paint();
    paint.setShader(new BitmapShader(squared, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));
    paint.setAntiAlias(true);
    float r = size / 2f;
    canvas.drawCircle(r, r, r, paint);
    return result;
}

Example 30 with BitmapShader

use of android.graphics.BitmapShader in project Hummingbird-for-Android by xiprox.

the class CircleTransformation method transform.

@Override
public Bitmap transform(Bitmap source) {
    int size = Math.min(source.getWidth(), source.getHeight());
    int x = (source.getWidth() - size) / 2;
    int y = (source.getHeight() - size) / 2;
    Bitmap squaredBitmap = Bitmap.createBitmap(source, x, y, size, size);
    if (squaredBitmap != source) {
        source.recycle();
    }
    Bitmap bitmap = Bitmap.createBitmap(size, size, source.getConfig());
    Canvas canvas = new Canvas(bitmap);
    Paint paint = new Paint();
    BitmapShader shader = new BitmapShader(squaredBitmap, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP);
    paint.setShader(shader);
    paint.setAntiAlias(true);
    float r = size / 2f;
    canvas.drawCircle(r, r, r, paint);
    squaredBitmap.recycle();
    return bitmap;
}