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

Example 46 with Matrix

use of android.graphics.Matrix in project picasso by square.

the class BitmapHunterTest method exifRotationWithManualRotation.

@Test
public void exifRotationWithManualRotation() {
    Bitmap source = Bitmap.createBitmap(10, 10, ARGB_8888);
    Request data = new Request.Builder(URI_1).rotate(-45).build();
    Bitmap result = transformResult(data, source, ORIENTATION_ROTATE_90);
    ShadowBitmap shadowBitmap = shadowOf(result);
    assertThat(shadowBitmap.getCreatedFromBitmap()).isSameAs(source);
    Matrix matrix = shadowBitmap.getCreatedFromMatrix();
    ShadowMatrix shadowMatrix = shadowOf(matrix);
    assertThat(shadowMatrix.getPreOperations()).containsOnly("rotate 90.0");
    assertThat(shadowMatrix.getSetOperations()).contains(entry("rotate", "-45.0"));
}

Example 47 with Matrix

use of android.graphics.Matrix in project picasso by square.

the class BitmapHunterTest method centerCropResultMatchesTargetSizeWhileDesiredWidthIs0.

@Test
public void centerCropResultMatchesTargetSizeWhileDesiredWidthIs0() {
    Request request = new Request.Builder(URI_1).resize(0, 642).centerCrop().build();
    Bitmap source = Bitmap.createBitmap(640, 640, ARGB_8888);
    Bitmap result = transformResult(request, source, 0);
    ShadowBitmap shadowBitmap = shadowOf(result);
    Matrix matrix = shadowBitmap.getCreatedFromMatrix();
    ShadowMatrix shadowMatrix = shadowOf(matrix);
    String scalePreOperation = shadowMatrix.getPreOperations().get(0);
    assertThat(scalePreOperation).startsWith("scale ");
    float scaleX = Float.valueOf(scalePreOperation.split(" ")[1]);
    float scaleY = Float.valueOf(scalePreOperation.split(" ")[2]);
    int transformedWidth = Math.round(result.getWidth() * scaleX);
    int transformedHeight = Math.round(result.getHeight() * scaleY);
    assertThat(transformedWidth).isEqualTo(642);
    assertThat(transformedHeight).isEqualTo(642);
}

Example 48 with Matrix

use of android.graphics.Matrix in project picasso by square.

the class BitmapHunterTest method exifTranspose.

@Test
public void exifTranspose() {
    Request data = new Request.Builder(URI_1).rotate(-45).build();
    Bitmap source = Bitmap.createBitmap(10, 10, ARGB_8888);
    Bitmap result = transformResult(data, source, ORIENTATION_TRANSPOSE);
    ShadowBitmap shadowBitmap = shadowOf(result);
    assertThat(shadowBitmap.getCreatedFromBitmap()).isSameAs(source);
    Matrix matrix = shadowBitmap.getCreatedFromMatrix();
    ShadowMatrix shadowMatrix = shadowOf(matrix);
    assertThat(shadowMatrix.getPostOperations()).containsOnly("scale -1.0 1.0");
    assertThat(shadowMatrix.getPreOperations()).containsOnly("rotate 90.0");
}

Example 49 with Matrix

use of android.graphics.Matrix in project ZoomableImageView by laurencedawson.

the class ZoomableImageView method zoomOut.

// Unchanged from ImageViewTouchBase
protected void zoomOut(float rate) {
    if (mBitmap == null) {
        return;
    }
    float width = getWidth();
    float height = getHeight();
    Matrix tmp = new Matrix(mSuppMatrix);
    tmp.postScale(1F / sScaleRate, 1F / sScaleRate, width / 2F, height / 2F);
    if (getScale(tmp) < 1F) {
        mSuppMatrix.setScale(1F, 1F, width / 2F, height / 2F);
    } else {
        mSuppMatrix.postScale(1F / rate, 1F / rate, width / 2F, height / 2F);
    }
    setImageMatrix(getImageViewMatrix());
    center(true, true, false);
}

Example 50 with Matrix

use of android.graphics.Matrix in project react-native-camera by lwansbrough.

the class RCTCameraModule method mirrorImage.

private byte[] mirrorImage(byte[] data) {
    ByteArrayInputStream inputStream = new ByteArrayInputStream(data);
    Bitmap photo = BitmapFactory.decodeStream(inputStream);
    Matrix m = new Matrix();
    m.preScale(-1, 1);
    Bitmap mirroredImage = Bitmap.createBitmap(photo, 0, 0, photo.getWidth(), photo.getHeight(), m, false);
    return saveImage(inputStream, mirroredImage);
}