Example usage for android.graphics Matrix reset

Introduction

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

Prototype

public void reset() 

Source Link

Document

Set the matrix to identity

Usage

From source file:Main.java

public static Matrix get() {
    Matrix matrix = objects.get();
    matrix.reset();
    return matrix;
}

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From source file:Main.java

public static boolean setBitmapToDisplayMatrix(Matrix m, RectF imageBounds, RectF displayBounds) {
    m.reset();
    return m.setRectToRect(imageBounds, displayBounds, Matrix.ScaleToFit.CENTER);
}

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From source file:Main.java

/**
 * Gets straighten matrix for the given bounds and degrees.
 *//*from w  ww.  j  a  v  a 2s. c om*/
public static void getStraightenMatrix(RectF bounds, float degrees, Matrix matrix) {
    matrix.reset();
    if ((degrees != 0) && !bounds.isEmpty()) {
        float w = bounds.width() / 2;
        float h = bounds.height() / 2;
        float adjustAngle;
        if ((degrees < 0 && w > h) || (degrees > 0 && w <= h)) {
            // The top left point is the boundary.
            adjustAngle = (float) Math.atan(h / -w) + MATH_PI + degrees * DEGREES_TO_RADIAN;
        } else {
            // The top right point is the boundary.
            adjustAngle = (float) Math.atan(h / w) - MATH_PI + degrees * DEGREES_TO_RADIAN;
        }
        float radius = (float) Math.hypot(w, h);
        float scaleX = (float) Math.abs(radius * Math.cos(adjustAngle)) / w;
        float scaleY = (float) Math.abs(radius * Math.sin(adjustAngle)) / h;
        float scale = Math.max(scaleX, scaleY);

        postRotateMatrix(degrees, new RectF(bounds), matrix);
        matrix.postScale(scale, scale);
    }
}

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From source file:Main.java

public static boolean saveMyBitmap(File f, Bitmap mBitmap) throws IOException {
    boolean saveComplete = true;
    try {/*from   w w  w  . ja va2 s. c  o  m*/
        f.createNewFile();
        FileOutputStream fOut = null;
        fOut = new FileOutputStream(f);
        int width = mBitmap.getWidth();
        int height = mBitmap.getHeight();
        int finalWidth = 800;
        int finalHeight = (int) (finalWidth * 1.0 * (height * 1.0 / width * 1.0));
        double x = width * finalHeight;
        double y = height * finalWidth;

        if (x > y) {
            finalHeight = (int) (y / (double) width);
        } else if (x < y) {
            finalWidth = (int) (x / (double) height);
        }

        if (finalWidth > width && finalHeight > height) {
            finalWidth = width;
            finalHeight = height;
        }
        Matrix matrix = new Matrix();
        matrix.reset();
        float scaleWidth = ((float) finalWidth) / (float) width;
        float scaleHeight = ((float) finalHeight) / (float) height;
        matrix.postScale(scaleWidth, scaleHeight);
        mBitmap = Bitmap.createBitmap(mBitmap, 0, 0, (int) width, (int) height, matrix, true);
        mBitmap.compress(Bitmap.CompressFormat.JPEG, 80, fOut);
        fOut.flush();
        fOut.close();
        mBitmap.recycle();
        System.gc();
    } catch (FileNotFoundException e) {
        saveComplete = false;
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
        saveComplete = false;
    }
    return saveComplete;
}

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From source file:Main.java

public static boolean storeImage(Context context, Bitmap bmp, boolean isRotate) {

    // use the current data&time for image file name
    String takenTime_YYMMDD_HHMMSS = new SimpleDateFormat(DATA_FORMAT).format(new Date());

    // saved bitmap: full path
    String path = PIC_ROOT_PATH + takenTime_YYMMDD_HHMMSS;
    File f = new File(path);

    if (f != null && !f.getParentFile().exists()) {
        f.getParentFile().mkdirs();/*from   w w  w .ja v  a 2 s.  c  o  m*/
    }

    if (isRotate) {
        Matrix matrix = new Matrix();
        matrix.reset();
        matrix.postRotate(90);
        bmp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), matrix, true);
    }

    try {
        FileOutputStream out = new FileOutputStream(f);
        bmp.compress(Bitmap.CompressFormat.JPEG, 100, out);
        out.flush();
        out.close();
    } catch (FileNotFoundException e) {
        e.printStackTrace();
        return false;
    } catch (IOException e) {
        e.printStackTrace();
        return false;
    }

    return updateGallery(context, bmp, takenTime_YYMMDD_HHMMSS);
}

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From source file:Main.java

public static void offsetDescendantRect(ViewGroup group, View child, Rect rect) {
    Matrix m = sMatrix.get();
    if (m == null) {
        m = new Matrix();
        sMatrix.set(m);//from  w  w w  . j  a  va2 s . c  o  m
    } else {
        m.reset();
    }

    offsetDescendantMatrix(group, child, m);

    RectF rectF = sRectF.get();
    if (rectF == null) {
        rectF = new RectF();
        sRectF.set(rectF);
    }
    rectF.set(rect);
    m.mapRect(rectF);
    rect.set((int) (rectF.left + 0.5f), (int) (rectF.top + 0.5f), (int) (rectF.right + 0.5f),
            (int) (rectF.bottom + 0.5f));
}

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From source file:at.wada811.imageviewscaling.ImageViewFragment.java

public ParameterDelegate getParameterDelegate() {
    return new ParameterDelegate() {
        @Override/*from  w w w.j a v  a 2 s  .c  o m*/
        public ScaleType getScaleType() {
            return mImageView.getScaleType();
        }

        @Override
        public void setScaleType(ScaleType scaleType) {
            mImageView.setScaleType(scaleType);
        }

        @Override
        public int getLayoutParamsWidth() {
            return mImageView.getLayoutParams().width;
        }

        @Override
        public void setLayoutParamsWidth(int width) {
            LayoutParams params = mImageView.getLayoutParams();
            params.width = width;
            mImageView.setLayoutParams(params);
        }

        @Override
        public int getLayoutParamsHeight() {
            return mImageView.getLayoutParams().height;
        }

        @Override
        public void setLayoutParamsHeight(int height) {
            LayoutParams params = mImageView.getLayoutParams();
            params.height = height;
            mImageView.setLayoutParams(params);

        }

        @Override
        public boolean getAdjustViewBounds() {
            return mImageView.getAdjustViewBounds();
        }

        @Override
        public void setAdjustViewBounds(boolean adjustViewBounds) {
            mImageView.setAdjustViewBounds(adjustViewBounds);
        }

        @Override
        public void setFitDisplayInside() {
            Bitmap bitmap = BitmapUtils.createBitmapFromDrawable(mImageView.getDrawable());
            float factor = (float) DisplayUtils.getWidth(getActivity()) / bitmap.getWidth();
            RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
                    DisplayUtils.getWidth(getActivity()), (int) (bitmap.getHeight() * factor));
            mImageView.setLayoutParams(params);
            Matrix matrix = mImageView.getImageMatrix();
            matrix.reset();
            matrix.postScale(factor, factor);
            mImageView.setImageMatrix(matrix);

        }
    };
}

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From source file:com.actionbarsherlock.internal.nineoldandroids.view.animation.AnimatorProxy.java

private void computeRect(final RectF r, View view) {
    // compute current rectangle according to matrix transformation
    final float w = view.getWidth();
    final float h = view.getHeight();

    // use a rectangle at 0,0 to make sure we don't run into issues with scaling
    r.set(0, 0, w, h);/*from   w  ww  .j a va  2 s .  com*/

    final Matrix m = mTempMatrix;
    m.reset();
    transformMatrix(m, view);
    mTempMatrix.mapRect(r);

    r.offset(view.getLeft(), view.getTop());

    // Straighten coords if rotations flipped them
    if (r.right < r.left) {
        final float f = r.right;
        r.right = r.left;
        r.left = f;
    }
    if (r.bottom < r.top) {
        final float f = r.top;
        r.top = r.bottom;
        r.bottom = f;
    }
}

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From source file:com.landenlabs.all_UiDemo.frag.ImageScalesFrag.java

private Bitmap fillUpperLeft(final Drawable drawable, ImageView imageView, Bitmap prevBm) {

    // Compute  matrix to fill viewer with drawable starting with upper left
    // Stretching till 2nd edge is crossed (filling screen) with correct aspect ratio.
    Matrix m = new Matrix();
    m.reset();
    int imgWidth = drawable.getIntrinsicWidth();
    int imgHeight = drawable.getIntrinsicHeight();
    int viewWidth = imageView.getWidth();
    int viewHeight = imageView.getHeight();
    float xScale = (float) viewWidth / imgWidth;
    float yScale = (float) viewHeight / imgHeight;
    float maxScale = Math.max(xScale, yScale);

    m.postScale(maxScale, maxScale);//  w  ww.  j a v  a2  s .  c  o m

    imageView.setScaleType(ImageView.ScaleType.MATRIX);
    imageView.setImageMatrix(m);
    imageView.setImageDrawable(drawable);
    return prevBm;
}

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From source file:com.landenlabs.all_UiDemo.frag.ImageScalesFrag.java

private Bitmap fillLowerLeft(final Drawable drawable, ImageView imageView, Bitmap prevBm) {

    // Compute  matrix to fill viewer with drawable starting with upper left
    // Stretching till 2nd edge is crossed (filling screen) with correct aspect ratio.
    Matrix m = new Matrix();
    m.reset();
    int imgWidth = drawable.getIntrinsicWidth();
    int imgHeight = drawable.getIntrinsicHeight();
    int viewWidth = imageView.getWidth();
    int viewHeight = imageView.getHeight();
    float xScale = (float) viewWidth / imgWidth;
    float yScale = (float) viewHeight / imgHeight;
    float maxScale = Math.max(xScale, yScale);

    float dy = (imgHeight * maxScale - viewHeight) / maxScale;
    // dy = imgHeight / 2;
    m.preTranslate(0, -dy);/*from   w  w  w.  j av a  2  s. co  m*/
    m.postScale(maxScale, maxScale);

    imageView.setScaleType(ImageView.ScaleType.MATRIX);
    imageView.setImageMatrix(m);
    imageView.setImageDrawable(drawable);
    return prevBm;
}

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