from PyQt5.QtWidgets import QVBoxLayout, QHBoxLayout


# 垂直居中
def vcenter_layout(*widgets):
  vbox = QVBoxLayout()
  vbox.addStretch()
  for widget in widgets:
    vbox.addWidget(widget)
  vbox.addStretch()
  return vbox


# 水平居中
def hcenter_layout(*widgets):
  hbox = QHBoxLayout()
  hbox.addStretch()
  for widget in widgets:
    hbox.addWidget(widget)
  hbox.addStretch()
  return hbox


# 垂直水平居中
def center_layout(widget):
  hbox = QHBoxLayout()
  hbox.addStretch()
  hbox.addWidget(widget)
  hbox.addStretch()

  vbox = QVBoxLayout()
  vbox.addStretch()
  vbox.addLayout(hbox)
  vbox.addStretch()
  return vbox


# 居左
def left_layout(*widgets):
  hbox = QHBoxLayout()
  for widget in widgets:
    hbox.addWidget(widget)
  hbox.addStretch()
  return hbox


# 居右
def right_layout(*widgets):
  hbox = QHBoxLayout()
  hbox.addStretch()
  for widget in widgets:
    hbox.addWidget(widget)
  return hbox


# 向上靠齐
def top_layout(*widgets):
  vbox = QVBoxLayout()
  for widget in widgets:
    vbox.addWidget(widget)
  vbox.addStretch()
  return vbox


# 向下靠齐
def bottom_layout(*widgets):
  vbox = QVBoxLayout()
  vbox.addStretch()
  for widget in widgets:
    vbox.addWidget(widget)
  return vbox


# 正常垂直分布
def v_layout(*widgets):
  vbox = QVBoxLayout()
  for widget in widgets:
    vbox.addWidget(widget)
  return vbox


# 正常垂直分布
def h_layout(*widgets):
  vbox = QHBoxLayout()
  for widget in widgets:
    vbox.addWidget(widget)
  return vbox