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class LCDRange < Qt::Widget
signals 'valueChanged(int)'
slots 'value=(int)', 'setRange(int, int)', 'text=(const char*)'
def initialize(s, parent = nil)
super(parent)
init()
self.text = s
end
def init
lcd = Qt::LCDNumber.new(2)
@slider = Qt::Slider.new(Qt::Horizontal) do |s|
s.range = 0..99
s.value = 0
end
@label = Qt::Label.new do |l|
l.alignment = Qt::AlignHCenter.to_i | Qt::AlignTop.to_i
l.setSizePolicy(Qt::SizePolicy::Preferred, Qt::SizePolicy::Fixed)
end
connect(@slider, SIGNAL('valueChanged(int)'), lcd, SLOT('display(int)'))
connect(@slider, SIGNAL('valueChanged(int)'), SIGNAL('valueChanged(int)'))
self.layout = Qt::VBoxLayout.new do |l|
l.addWidget(lcd)
l.addWidget(@slider)
l.addWidget(@label)
end
setFocusProxy(@slider)
end
def value
@slider.value
end
def value=( value )
@slider.value = value
end
def range=( r )
setRange(r.begin, r.end)
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 text=( s )
@label.text = s
end
end
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