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-rw-r--r--qtruby/rubylib/tutorial/t13/lcdrange.rb55
1 files changed, 55 insertions, 0 deletions
diff --git a/qtruby/rubylib/tutorial/t13/lcdrange.rb b/qtruby/rubylib/tutorial/t13/lcdrange.rb
new file mode 100644
index 00000000..03edb89c
--- /dev/null
+++ b/qtruby/rubylib/tutorial/t13/lcdrange.rb
@@ -0,0 +1,55 @@
+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