int originY = bottomRightPosition.rowPosition == scrollableLayer
.getRowCount() - 1 ? scrollableLayer.getHeight()
: scrollableLayer
.getStartYOfRowPosition(bottomRightPosition.rowPosition + 1);
viewportLayer.setMinimumOrigin(originX, originY);
viewportLayer.fireLayerEvent(new FreezeEvent(viewportLayer));
}
}