Example usage for android.graphics Matrix getValues

Introduction

In this page you can find the example usage for android.graphics Matrix getValues.

Prototype

public void getValues(float[] values) 

Source Link

Document

Copy 9 values from the matrix into the array.

Usage

From source file:Main.java

public static Drawable rotateBitmap(Bitmap inputBitmap) {
    Matrix matrix = new Matrix();
    matrix.setRotate(90, (float) inputBitmap.getWidth() / 2, (float) inputBitmap.getHeight() / 2);

    float outputX = inputBitmap.getHeight();
    float outputY = 0;

    final float[] values = new float[9];
    matrix.getValues(values);
    float x1 = values[Matrix.MTRANS_X];
    float y1 = values[Matrix.MTRANS_Y];
    matrix.postTranslate(outputX - x1, outputY - y1);
    Bitmap outputBitmap = Bitmap.createBitmap(inputBitmap.getHeight(), inputBitmap.getWidth(),
            Bitmap.Config.ARGB_8888);//from ww  w.j  a  v  a2s  .c  o  m
    Paint paint = new Paint();
    Canvas canvas = new Canvas(outputBitmap);
    canvas.drawBitmap(inputBitmap, matrix, paint);
    return new BitmapDrawable(null, outputBitmap);
}

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From source file:Main.java

public static Bitmap resizeBitmapToImageView(String path) {
    Bitmap resizedBitmap = null;// w w w .  jav  a  2  s. com
    try {
        int inWidth;
        int inHeight;
        int dstWidth = 1000;
        int dstHeight = 1000;

        InputStream in = new FileInputStream(path);

        // decode image size (decode metadata only, not the whole image)
        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeStream(in, null, options);
        in.close();

        // save width and height
        inWidth = options.outWidth;
        inHeight = options.outHeight;

        // decode full image pre-resized
        in = new FileInputStream(path);
        options = new BitmapFactory.Options();
        // calc rought re-size (this is no exact resize)

        options.inSampleSize = Math.max(inWidth / dstWidth, inHeight / dstHeight);
        // decode full image
        Bitmap roughBitmap = BitmapFactory.decodeStream(in, null, options);

        // calc exact destination size
        Matrix m = new Matrix();
        RectF inRect = new RectF(0, 0, roughBitmap.getWidth(), roughBitmap.getHeight());
        RectF outRect = new RectF(0, 0, dstWidth, dstHeight);
        m.setRectToRect(inRect, outRect, Matrix.ScaleToFit.CENTER);
        float[] values = new float[9];
        m.getValues(values);

        // resize bitmap
        resizedBitmap = Bitmap.createScaledBitmap(roughBitmap, (int) (roughBitmap.getWidth() * values[0]),
                (int) (roughBitmap.getHeight() * values[4]), true);

        // save image
        //            try {
        //                FileOutputStream out = new FileOutputStream(path);
        //                resizedBitmap.compress(Bitmap.CompressFormat.JPEG, 80, out);
        //            } catch (Exception e) {
        ////                Log.e("Image", e.getMessage(), e);
        //            }
    } catch (IOException e) {
        //            Log.e("Image", e.getMessage(), e);
    }
    return resizedBitmap;
}

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From source file:Main.java

private static void saveSmallerImage(String pathOfInputImage, int dstWidth, int dstHeight) {
    try {/*w  w w . j av  a  2 s . c  o m*/
        int inWidth = 0;
        int inHeight = 0;

        InputStream in = new FileInputStream(pathOfInputImage);

        // decode image size (decode metadata only, not the whole image)
        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeStream(in, null, options);
        in.close();
        in = null;

        // save width and height
        inWidth = options.outWidth;
        inHeight = options.outHeight;

        // decode full image pre-resized
        in = new FileInputStream(pathOfInputImage);
        options = new BitmapFactory.Options();
        // calc rought re-size (this is no exact resize)
        options.inSampleSize = Math.max(inWidth / dstWidth, inHeight / dstHeight);
        // decode full image
        Bitmap roughBitmap = BitmapFactory.decodeStream(in, null, options);

        // calc exact destination size
        Matrix m = new Matrix();
        RectF inRect = new RectF(0, 0, roughBitmap.getWidth(), roughBitmap.getHeight());
        RectF outRect = new RectF(0, 0, dstWidth, dstHeight);
        m.setRectToRect(inRect, outRect, Matrix.ScaleToFit.CENTER);
        float[] values = new float[9];
        m.getValues(values);

        // resize bitmap
        Bitmap resizedBitmap = Bitmap.createScaledBitmap(roughBitmap,
                (int) (roughBitmap.getWidth() * values[0]), (int) (roughBitmap.getHeight() * values[4]), true);

        // save image
        try {
            FileOutputStream out = new FileOutputStream(pathOfInputImage);
            resizedBitmap.compress(Bitmap.CompressFormat.JPEG, 80, out);
        } catch (Exception e) {
            Log.e("Image", e.getMessage(), e);
        }
    } catch (IOException e) {
        Log.e("Image", e.getMessage(), e);
    } catch (Exception e) {
        Log.e("Image", e.getMessage());
    }
}

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From source file:Main.java

public static Bitmap adjustPhotoRotation(Bitmap bm, final int orientationDegree) {

    Matrix m = new Matrix();
    m.setRotate(orientationDegree, (float) bm.getWidth() / 2, (float) bm.getHeight() / 2);
    float targetX, targetY;
    if (orientationDegree == 90) {
        targetX = bm.getHeight();/*from   w  w w  .ja v a 2 s .c om*/
        targetY = 0;
    } else {
        targetX = bm.getHeight();
        targetY = bm.getWidth();
    }

    final float[] values = new float[9];
    m.getValues(values);

    float x1 = values[Matrix.MTRANS_X];
    float y1 = values[Matrix.MTRANS_Y];

    m.postTranslate(targetX - x1, targetY - y1);

    Bitmap bm1 = Bitmap.createBitmap(bm.getHeight(), bm.getWidth(), Bitmap.Config.ARGB_8888);
    Paint paint = new Paint();
    Canvas canvas = new Canvas(bm1);
    canvas.drawBitmap(bm, m, paint);

    return bm1;
}

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From source file:Main.java

public static Bitmap adjustPhotoRotation(Bitmap bm, final int orientationDegree) {

    Matrix m = new Matrix();
    m.setRotate(orientationDegree, (float) bm.getWidth() / 2, (float) bm.getHeight() / 2);
    float targetX, targetY;
    if (orientationDegree == 90) {
        targetX = bm.getHeight();//from w w  w .j a v  a  2  s .c  om
        targetY = 0;
    } else {
        targetX = bm.getHeight();
        targetY = bm.getWidth();
    }

    final float[] values = new float[9];
    m.getValues(values);

    float x1 = values[Matrix.MTRANS_X];
    float y1 = values[Matrix.MTRANS_Y];

    m.postTranslate(targetX - x1, targetY - y1);

    Bitmap temp = Bitmap.createBitmap(bm.getHeight(), bm.getWidth(), Bitmap.Config.ARGB_8888);

    Paint paint = new Paint();
    Canvas canvas = new Canvas(temp);
    canvas.drawBitmap(bm, m, paint);

    return temp;
}

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From source file:Main.java

public static Bitmap adjustPhotoRotation(Bitmap bm, final int orientationDegree) {
    Matrix m = new Matrix();
    m.setRotate(orientationDegree, (float) bm.getWidth() / 2, (float) bm.getHeight() / 2);
    float targetX, targetY;
    if (orientationDegree == 90) {
        targetX = bm.getHeight();/*  w  w w.  ja  v  a  2 s  .  c o m*/
        targetY = 0;
    } else {
        targetX = bm.getHeight();
        targetY = bm.getWidth();
    }
    final float[] values = new float[9];
    m.getValues(values);
    float x1 = values[Matrix.MTRANS_X];
    float y1 = values[Matrix.MTRANS_Y];
    m.postTranslate(targetX - x1, targetY - y1);
    Bitmap bm1 = Bitmap.createBitmap(bm.getHeight(), bm.getWidth(), Bitmap.Config.ARGB_8888);
    Paint paint = new Paint();
    Canvas canvas = new Canvas(bm1);
    canvas.drawBitmap(bm, m, paint);
    bm.recycle();
    bm = null;
    return bm1;
}

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From source file:it.mb.whatshare.Utils.java

/**
 * Encodes the argument <tt>matrix</tt> into a JSON array.
 * /* w  w w .  j a v a2  s .c om*/
 * <p>
 * Values are cast to <tt>double</tt> because of JSON lack for a primitive
 * <tt>float</tt> value.
 * 
 * @param matrix
 *            the matrix to be encoded
 * @return the matrix encoded into a JSON array, or <code>null</code> if
 *         <tt>matrix</tt> is <code>null</code> or inconsistent (i.e. it
 *         doesn't contain <tt>float</tt>'s)
 */
public static JSONArray matrixToJson(Matrix matrix) {
    if (matrix == null)
        return null;
    JSONArray array = new JSONArray();
    float[] values = new float[9];
    matrix.getValues(values);
    for (float value : values) {
        try {
            array.put(value);
        } catch (JSONException e) {
            e.printStackTrace();
            return null;
        }
    }
    return array;
}

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From source file:de.wikilab.android.friendica01.Max.java

public static void resizeImage(String pathOfInputImage, String pathOfOutputImage, int dstWidth, int dstHeight) {
    try {/*from  ww w. j  a v a2 s .  c om*/
        int inWidth = 0;
        int inHeight = 0;

        InputStream in = new FileInputStream(pathOfInputImage);

        // decode image size (decode metadata only, not the whole image)
        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeStream(in, null, options);
        in.close();
        in = null;

        // save width and height
        inWidth = options.outWidth;
        inHeight = options.outHeight;

        // decode full image pre-resized
        in = new FileInputStream(pathOfInputImage);
        options = new BitmapFactory.Options();
        // calc rought re-size (this is no exact resize)
        options.inSampleSize = Math.max(inWidth / dstWidth, inHeight / dstHeight);
        // decode full image
        Bitmap roughBitmap = BitmapFactory.decodeStream(in, null, options);

        // calc exact destination size
        Matrix m = new Matrix();
        RectF inRect = new RectF(0, 0, roughBitmap.getWidth(), roughBitmap.getHeight());
        RectF outRect = new RectF(0, 0, dstWidth, dstHeight);
        m.setRectToRect(inRect, outRect, Matrix.ScaleToFit.CENTER);
        float[] values = new float[9];
        m.getValues(values);

        // resize bitmap
        Bitmap resizedBitmap = Bitmap.createScaledBitmap(roughBitmap,
                (int) (roughBitmap.getWidth() * values[0]), (int) (roughBitmap.getHeight() * values[4]), true);

        // save image
        try {
            FileOutputStream out = new FileOutputStream(pathOfOutputImage);
            resizedBitmap.compress(Bitmap.CompressFormat.JPEG, 80, out);
        } catch (Exception e) {
            Log.e("Image", e.getMessage(), e);
        }
    } catch (IOException e) {
        Log.e("Image", e.getMessage(), e);
    }
}

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From source file:com.mylikes.likes.etchasketch.Slate.java

public static float getScale(Matrix m) {
    m.getValues(mvals);
    return mvals[0];
}

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From source file:com.fractview.ImageViewFragment.java

private void applyTouch(Matrix bitmapMatrix, Matrix prefsMatrix) {
    // Did we only move?
    final float[] bm = new float[9];
    bitmapMatrix.getValues(bm);

    if (bm[0] == 1f && bm[1] == 0f && bm[3] == 0f && bm[4] == 1f) {
        Log.d(TAG, "We only moved!");
        taskFragment.modifyImage(new UnsafeImageEditor() {
            @Override/*from  ww w .j  a  va2 s  .  co  m*/
            public void edit(AbstractImgCache cache) {
                ScaleableCache scaleable = (ScaleableCache) cache;
                scaleable.move((int) Math.round(bm[2]), (int) Math.round(bm[5]));
            }
        }, true);
    } else {
        // Update zoom
        Log.d(TAG, "We need to scale");
        Matrix m = new Matrix();
        prefsMatrix.invert(m);

        final float[] matrix = new float[9];
        m.getValues(matrix);

        taskFragment.modifyImage(new UnsafeImageEditor() {
            @Override
            public void edit(AbstractImgCache cache) {
                ScaleableCache scaleable = (ScaleableCache) cache;
                scaleable.newRelativeScale(matrix);
            }
        }, true);
    }
}

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