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t8/t8.rb Example File

#****************************************************************
#**
#** Qt tutorial 9
#**
#****************************************************************/

require 'Qt'
require 'lcdrange.rb'
require 'cannon.rb'

class MyWidget < Qt::Widget
    def initialize()
        super
        quit = Qt::PushButton.new('Quit', self, 'quit')
        quit.setFont(Qt::Font.new('Times', 18, Qt::Font::Bold))
    
        connect(quit, SIGNAL('clicked()'), $qApp, SLOT('quit()'))
    
        angle = LCDRange.new( self, 'angle' )
        angle.setRange( 5, 70 )

        cannonField = CannonField.new( self, 'cannonField' )

        connect( angle, SIGNAL('valueChanged(int)'),
                 cannonField, SLOT('setAngle(int)') )
        connect( cannonField, SIGNAL('angleChanged(int)'),
                 angle, SLOT('setValue(int)') )
        grid = Qt::GridLayout.new( self, 2, 2, 10 )
        # 2x2, 10 pixel border

        grid.addWidget( quit, 0, 0 )
        grid.addWidget( angle, 1, 0, Qt::AlignTop )
        grid.addWidget( cannonField, 1, 1 )
        grid.setColStretch( 1, 10 )

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

a = Qt::Application.new(ARGV)

w = MyWidget.new
w.setGeometry( 100, 100, 500, 355 )
a.setMainWidget(w)
w.show
a.exec