@Px
  public int getMinWidth() {
    return mMinWidthMode == PIXELS ? mMinWidth : -1;
  }
Returns the min width expressed in pixels.

@return the min width expressed in pixels or -1, if the min width was set in ems instead
@see #setMinWidth(int)
library/src/main/java/com/facebook/fbui/textlayoutbuilder/TextLayoutBuilder.java