Example usage for android.graphics Matrix MSKEW

Introduction

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

Prototype

int MSKEW_Y

To view the source code for android.graphics Matrix MSKEW_Y.

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Usage

From source file:Main.java

public static float getCurrentScaleFromMatrix(Matrix matrix) {
    float[] values = new float[9];
    matrix.getValues(values);/*from   w w w  .  j  av a  2  s .c o m*/
    float scalex = values[Matrix.MSCALE_X];
    float skewy = values[Matrix.MSKEW_Y];
    return (float) Math.sqrt(scalex * scalex + skewy * skewy);
}

From source file:Main.java

public static float getMatrixScale(Matrix matrix) {
    synchronized (MATRIX_VALUES) {
        matrix.getValues(MATRIX_VALUES);
        final float scaleX = MATRIX_VALUES[Matrix.MSCALE_X];
        final float skewY = MATRIX_VALUES[Matrix.MSKEW_Y];
        //noinspection SuspiciousNameCombination
        return (float) Math.sqrt((float) Math.pow(scaleX, 2) + (float) Math.pow(skewY, 2));
    }/* w  ww  .j  ava2  s  . c o m*/
}

From source file:android.support.graphics.drawable.VectorDrawableCompat.java

@Override
public void draw(Canvas canvas) {
    if (mDelegateDrawable != null) {
        mDelegateDrawable.draw(canvas);/* ww w.  j a  va  2 s.c  o  m*/
        return;
    }
    // We will offset the bounds for drawBitmap, so copyBounds() here instead
    // of getBounds().
    copyBounds(mTmpBounds);
    if (mTmpBounds.width() <= 0 || mTmpBounds.height() <= 0) {
        // Nothing to draw
        return;
    }

    // Color filters always override tint filters.
    final ColorFilter colorFilter = (mColorFilter == null ? mTintFilter : mColorFilter);

    // The imageView can scale the canvas in different ways, in order to
    // avoid blurry scaling, we have to draw into a bitmap with exact pixel
    // size first. This bitmap size is determined by the bounds and the
    // canvas scale.
    canvas.getMatrix(mTmpMatrix);
    mTmpMatrix.getValues(mTmpFloats);
    float canvasScaleX = Math.abs(mTmpFloats[Matrix.MSCALE_X]);
    float canvasScaleY = Math.abs(mTmpFloats[Matrix.MSCALE_Y]);

    float canvasSkewX = Math.abs(mTmpFloats[Matrix.MSKEW_X]);
    float canvasSkewY = Math.abs(mTmpFloats[Matrix.MSKEW_Y]);

    // When there is any rotation / skew, then the scale value is not valid.
    if (canvasSkewX != 0 || canvasSkewY != 0) {
        canvasScaleX = 1.0f;
        canvasScaleY = 1.0f;
    }

    int scaledWidth = (int) (mTmpBounds.width() * canvasScaleX);
    int scaledHeight = (int) (mTmpBounds.height() * canvasScaleY);
    scaledWidth = Math.min(MAX_CACHED_BITMAP_SIZE, scaledWidth);
    scaledHeight = Math.min(MAX_CACHED_BITMAP_SIZE, scaledHeight);

    if (scaledWidth <= 0 || scaledHeight <= 0) {
        return;
    }

    final int saveCount = canvas.save();
    canvas.translate(mTmpBounds.left, mTmpBounds.top);

    // Handle RTL mirroring.
    final boolean needMirroring = needMirroring();
    if (needMirroring) {
        canvas.translate(mTmpBounds.width(), 0);
        canvas.scale(-1.0f, 1.0f);
    }

    // At this point, canvas has been translated to the right position.
    // And we use this bound for the destination rect for the drawBitmap, so
    // we offset to (0, 0);
    mTmpBounds.offsetTo(0, 0);

    mVectorState.createCachedBitmapIfNeeded(scaledWidth, scaledHeight);
    if (!mAllowCaching) {
        mVectorState.updateCachedBitmap(scaledWidth, scaledHeight);
    } else {
        if (!mVectorState.canReuseCache()) {
            mVectorState.updateCachedBitmap(scaledWidth, scaledHeight);
            mVectorState.updateCacheStates();
        }
    }
    mVectorState.drawCachedBitmapWithRootAlpha(canvas, colorFilter, mTmpBounds);
    canvas.restoreToCount(saveCount);
}

From source file:com.frank.protean.photoview.PhotoViewAttacher.java

public float getScale() {
    return (float) Math.sqrt((float) Math.pow(getValue(mSuppMatrix, Matrix.MSCALE_X), 2)
            + (float) Math.pow(getValue(mSuppMatrix, Matrix.MSKEW_Y), 2));
}

From source file:baizhuan.hangzhou.com.gankcopy.view.customview.photoview.PhotoViewAttacher.java

@Override
public float getScale() {
    return (float) Math.sqrt((float) Math.pow(getValue(mSuppMatrix, Matrix.MSCALE_X), 2)
            + (float) Math.pow(getValue(mSuppMatrix, Matrix.MSKEW_Y), 2));
}

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

/**
 * Applies the transformations stored in the array of float values to the
 * argument list of points.//from   www .  ja v a  2 s. c om
 * 
 * <p>
 * The float array can be obtained starting from a {@link Matrix} object by
 * calling <blockquote>
 * 
 * <pre>
 * Matrix myMatrix;
 * float[] matrixValues = new float[9];
 * myMatrix.getValues(matrixValues);
 * </pre>
 * 
 * </blockquote>
 * 
 * @param matrixValues
 *            the values to apply to all points in the list
 * @param points
 *            a list of points to which the transformations in the array
 *            will be applied
 */
public static void applyMatrix(float[] matrixValues, List<PointF> points) {
    // variable names are the same used by Skia library
    final float tx = matrixValues[Matrix.MTRANS_X];
    final float ty = matrixValues[Matrix.MTRANS_Y];
    final float mx = matrixValues[Matrix.MSCALE_X];
    final float my = matrixValues[Matrix.MSCALE_Y];
    final float kx = matrixValues[Matrix.MSKEW_X];
    final float ky = matrixValues[Matrix.MSKEW_Y];
    /*
     * if rotation: skia messes up with the matrix, so sx and sy actually
     * store cosV, rx and ry store -sinV and sinV
     */
    for (PointF point : points) {
        final float originalY = point.y;
        point.y = point.x * ky + (point.y * my) + ty;
        point.x = point.x * mx + (originalY * kx) + tx;
    }
}

From source file:com.android.volley.ui.PhotoView.java

/**
 * Returns the currently applied scale factor for the image.
 * <p>//www  .j  av a 2  s  .  c  om
 * NOTE: This method overwrites any values stored in {@link #mValues}.
 */
private float getScale() {
    return (float) Math.sqrt((float) Math.pow(getValue(mMatrix, Matrix.MSCALE_X), 2)
            + (float) Math.pow(getValue(mMatrix, Matrix.MSKEW_Y), 2));
}

From source file:com.androidex.volley.ui.PhotoView.java

/**
 * Returns the currently applied scale factor for the image.
 * <p>/*  ww w .  j a v  a 2 s .  com*/
 * NOTE: This method overwrites any values stored in {@link #mValues}.
 */
private float getScale() {
    return FloatMath.sqrt((float) Math.pow(getValue(mMatrix, Matrix.MSCALE_X), 2)
            + (float) Math.pow(getValue(mMatrix, Matrix.MSKEW_Y), 2));
}

Example usage for android.graphics Matrix MSKEW_Y

Introduction

Prototype

Usage