How to use

sourceToViewX

method

in

com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView

/**
 * Convert source rect to screen rect, integer values.
 */
private void sourceToViewRect(@NonNull Rect sRect, @NonNull Rect vTarget) {
  vTarget.set(
    (int)sourceToViewX(sRect.left),
    (int)sourceToViewY(sRect.top),
    (int)sourceToViewX(sRect.right),
    (int)sourceToViewY(sRect.bottom)
  );
}

/**
 * Convert source coordinate to view coordinate.
 * @param sx source X coordinate.
 * @param sy source Y coordinate.
 * @param vTarget target object for result. The same instance is also returned.
 * @return view coordinates. This is the same instance passed to the vTarget param.
 */
@Nullable
public final PointF sourceToViewCoord(float sx, float sy, @NonNull PointF vTarget) {
  if (vTranslate == null) {
    return null;
  }
  vTarget.set(sourceToViewX(sx), sourceToViewY(sy));
  return vTarget;
}

float vFocusNowY = ease(anim.easing, scaleElapsed, anim.vFocusStart.y, anim.vFocusEnd.y - anim.vFocusStart.y, anim.duration);
vTranslate.x -= sourceToViewX(anim.sCenterEnd.x) - vFocusNowX;
vTranslate.y -= sourceToViewY(anim.sCenterEnd.y) - vFocusNowY;
  canvas.drawCircle(sourceToViewX(quickScaleSCenter.x), sourceToViewY(quickScaleSCenter.y), px(35), debugLinePaint);

/**
 * Convert source coordinate to screen coordinate.
 */
public final PointF sourceToViewCoord(float sx, float sy, PointF vTarget) {
  if (vTranslate == null) {
    return null;
  }
  vTarget.set(sourceToViewX(sx), sourceToViewY(sy));
  return vTarget;
}

/**
 * Convert source rect to screen rect, integer values.
 */
private Rect sourceToViewRect(Rect sRect, Rect vTarget) {
  vTarget.set(
    (int)sourceToViewX(sRect.left),
    (int)sourceToViewY(sRect.top),
    (int)sourceToViewX(sRect.right),
    (int)sourceToViewY(sRect.bottom)
  );
  return vTarget;
}

float vFocusNowY = ease(anim.easing, scaleElapsed, anim.vFocusStart.y, anim.vFocusEnd.y - anim.vFocusStart.y, anim.duration);
vTranslate.x -= sourceToViewX(anim.sCenterEnd.x) - vFocusNowX;
vTranslate.y -= sourceToViewY(anim.sCenterEnd.y) - vFocusNowY;
  canvas.drawCircle(sourceToViewX(quickScaleSCenter.x), sourceToViewY(quickScaleSCenter.y), 35, debugPaint);