class MyWidget

# File examples/tutorial/t10/t10.rb, line 9
def initialize(parent = nil)
  super
  quit = Qt::PushButton.new('Quit')
  quit.setFont(Qt::Font.new('Times', 18, Qt::Font::Bold))

  connect(quit, SIGNAL('clicked()'), $qApp, SLOT('quit()'))

  angle = LCDRange.new(self)
  angle.range = 5..70

  force = LCDRange.new(self)
  force.range = 10..50

  cannonField = CannonField.new(self)

  connect(angle, SIGNAL('valueChanged(int)'),
          cannonField, SLOT('setAngle(int)'))
  connect(cannonField, SIGNAL('angleChanged(int)'),
          angle, SLOT('setValue(int)'))

  connect(force, SIGNAL('valueChanged(int)'),
          cannonField, SLOT('setForce(int)'))
  connect(cannonField, SIGNAL('forceChanged(int)'),
          force, SLOT('setValue(int)'))

  leftLayout = Qt::VBoxLayout.new()
  leftLayout.addWidget(angle)
  leftLayout.addWidget(force)

  gridLayout = Qt::GridLayout.new
  gridLayout.addWidget(quit, 0, 0)
  gridLayout.addLayout(leftLayout, 1, 0)
  gridLayout.addWidget(cannonField, 1, 1, 2, 1)
  gridLayout.setColumnStretch(1, 10)
  setLayout(gridLayout)

  angle.setValue(60)
  force.setValue(25)
  angle.setFocus()
end