56     private RectF mPreviewArea = new RectF();  field in TextureViewHelper
130         mPreviewArea.set(0, 0, mWidth, mHeight);  in clearTransform()
131         onPreviewAreaChanged(mPreviewArea);  in clearTransform()
196         mPreviewArea = mCaptureLayoutHelper.getPreviewRect();  in updateTransformFullScreen()
197         onPreviewAreaChanged(mPreviewArea);  in updateTransformFullScreen()
231         mPreviewArea.set(0, 0, mWidth, mHeight);
232         matrix.mapRect(mPreviewArea);
233         onPreviewAreaChanged(mPreviewArea);
399         return new RectF(mPreviewArea);
444             if (mPreviewArea.width() == 0 || mPreviewArea.height() == 0) {
447                 listener.onPreviewAreaChanged(new RectF(mPreviewArea));