TouchImageView.java 文件源码

/**
 * Return a Rect representing the zoomed image.
 *
 * @return rect representing zoomed image
 */
public RectF getZoomedRect() {
    if (mScaleType == ScaleType.FIT_XY) {
        throw new UnsupportedOperationException("getZoomedRect() not supported with FIT_XY");
    }
    PointF topLeft = transformCoordTouchToBitmap(0, 0, true);
    PointF bottomRight = transformCoordTouchToBitmap(viewWidth, viewHeight, true);

    float w = getDrawable().getIntrinsicWidth();
    float h = getDrawable().getIntrinsicHeight();
    return new RectF(topLeft.x / w, topLeft.y / h, bottomRight.x / w, bottomRight.y / h);
}