Example usage for android.graphics Matrix postTranslate

Introduction

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

Prototype

public boolean postTranslate(float dx, float dy)

Source Link

Document

Postconcats the matrix with the specified translation.

Usage

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

/**
 * Gets a bitmap of the cropped region. If cropping is not enabled, returns {@code null}.
 *//* ww w. j  a va  2s  .co m*/
public Bitmap getCroppedPhoto() {
    if (!mAllowCrop) {
        return null;
    }

    final Bitmap croppedBitmap = Bitmap.createBitmap((int) CROPPED_SIZE, (int) CROPPED_SIZE,
            Bitmap.Config.ARGB_8888);
    final Canvas croppedCanvas = new Canvas(croppedBitmap);

    // scale for the final dimensions
    final int cropWidth = mCropRect.right - mCropRect.left;
    final float scaleWidth = CROPPED_SIZE / cropWidth;
    final float scaleHeight = CROPPED_SIZE / cropWidth;

    // translate to the origin & scale
    final Matrix matrix = new Matrix(mDrawMatrix);
    matrix.postTranslate(-mCropRect.left, -mCropRect.top);
    matrix.postScale(scaleWidth, scaleHeight);

    // draw the photo
    if (mDrawable != null) {
        croppedCanvas.concat(matrix);
        mDrawable.draw(croppedCanvas);
    }
    return croppedBitmap;
}

From source file:com.juce.JuceAppActivity.java

public final int[] renderGlyph (char glyph, Paint paint, android.graphics.Matrix matrix, Rect bounds)
{
    Path p = new Path();
    paint.getTextPath (String.valueOf (glyph), 0, 1, 0.0f, 0.0f, p);

    RectF boundsF = new RectF();
    p.computeBounds (boundsF, true);//  w w w.  ja v a2 s . c o  m
    matrix.mapRect (boundsF);

    boundsF.roundOut (bounds);
    bounds.left--;
    bounds.right++;

    final int w = bounds.width();
    final int h = Math.max (1, bounds.height());

    Bitmap bm = Bitmap.createBitmap (w, h, Bitmap.Config.ARGB_8888);

    Canvas c = new Canvas (bm);
    matrix.postTranslate (-bounds.left, -bounds.top);
    c.setMatrix (matrix);
    c.drawPath (p, paint);

    final int sizeNeeded = w * h;
    if (cachedRenderArray.length < sizeNeeded)
        cachedRenderArray = new int [sizeNeeded];

    bm.getPixels (cachedRenderArray, 0, w, 0, 0, w, h);
    bm.recycle();
    return cachedRenderArray;
}

From source file:im.ene.lab.design.widget.coverflow.FeatureCoverFlow.java

private void addChildAdjustPosition(View child, Matrix m) {
    final int c = getChildsCenter(child);
    final float crp = getClampedRelativePosition(getRelativePosition(c),
            mAdjustPositionThreshold * getWidgetSizeMultiplier());
    final float d = mCoverWidth * mAdjustPositionMultiplier * mSpacing * crp * getSpacingMultiplierOnCirlce(c);

    m.postTranslate(d, 0f);
}

From source file:im.ene.lab.design.widget.coverflow.FeatureCoverFlow.java

private void setChildTransformation(View child, Matrix m) {
    m.reset();/*from   w  w w  .  j a v  a 2s .com*/

    // TODO FIXME
    //        addChildRotation(child, m);
    addChildScale(child, m);
    addChildCircularPathZOffset(child, m);
    addChildAdjustPosition(child, m);

    //set coordinate system origin to center of child
    m.preTranslate(-child.getWidth() / 2f, -child.getHeight() / 2f);
    //move back
    m.postTranslate(child.getWidth() / 2f, child.getHeight() / 2f);

}