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44 lines
830 B
44 lines
830 B
require 'Qt'
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class CannonField < TQt::Widget
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signals 'angleChanged(int)'
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slots 'setAngle(int)'
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def initialize(parent, name)
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super
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@ang = 45
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setPalette( TQt::Palette.new( TQt::Color.new( 250, 250, 200) ) )
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end
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def setAngle( degrees )
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if degrees < 5
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degrees = 5
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elsif degrees > 70
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degrees = 70
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end
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if @ang == degrees
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return
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end
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@ang = degrees
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repaint()
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emit angleChanged( @ang )
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end
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def paintEvent( event )
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p = TQt::Painter.new( self )
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p.setBrush( blue )
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p.setPen( TQt::NoPen )
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p.translate( 0, rect().bottom() )
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p.drawPie( TQt::Rect.new(-35, -35, 70, 70), 0, 90*16 )
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p.rotate( - @ang )
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p.drawRect( TQt::Rect.new(33, -4, 15, 8) )
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p.end()
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end
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def sizePolicy()
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return TQt::SizePolicy.new( TQt::SizePolicy::Expanding, TQt::SizePolicy::Expanding )
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end
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end
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