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require 'Qt'
class LCDRange < Qt::Widget
signals 'valueChanged(int)'
slots 'setValue(int)', 'setRange(int, int)', 'setText(const char*)'
def initialize(s, parent, name)
super(parent, name)
init()
setText(s)
end
def init()
@lcd = Qt::LCDNumber.new(2, self, 'lcd')
@slider = Qt::Slider.new(Qt::VBox::Horizontal, self, 'slider')
@slider.setRange(0, 99)
@slider.setValue(0)
@label = Qt::Label.new( ' ', self, 'label' )
@label.setAlignment( Qt::AlignCenter )
connect(@slider, SIGNAL('valueChanged(int)'), @lcd, SLOT('display(int)'))
connect(@slider, SIGNAL('valueChanged(int)'), SIGNAL('valueChanged(int)'))
setFocusProxy(@slider)
@l = Qt::VBoxLayout.new( self )
@l.addWidget( @lcd, 1 )
@l.addWidget( @slider )
@l.addWidget( @label )
end
def value()
@slider.value()
end
def setValue( value )
@slider.setValue( value )
end
def setRange( minVal, maxVal )
if minVal < 0 || maxVal > 99 || minVal > maxVal
qWarning( "LCDRange::setRange(#{minVal},#{maxVal})\n" +
"\tRange must be 0..99\n" +
"\tand minVal must not be greater than maxVal" )
return
end
@slider.setRange( minVal, maxVal )
end
def setText( s )
@label.setText( s )
end
end
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