文字的水平对齐方式

[uuid(E94E15D7-8D74-4D6A-BADD-3419039A40A9), helpstring("McHorizontalAlignment")]
enum McHorizontalAlignment {
  mcHorizontalAlignmentLeft = 0,
  mcHorizontalAlignmentCenter = 1,
  mcHorizontalAlignmentRight = 2,
  mcHorizontalAlignmentAligned = 3,
  mcHorizontalAlignmentMiddle = 4,
  mcHorizontalAlignmentFit = 5
};