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50 lines
1.2 KiB
50 lines
1.2 KiB
# file: runme.rb
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# This file illustrates the C++ interface created by SWIG.
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# All of our C++ classes get converted into Ruby classes.
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require 'example'
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# ----- Object creation -----
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print "Creating some objects:\n"
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c = Example::Circle.new(10)
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print " Created circle #{c}\n"
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s = Example::Square.new(10)
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print " Created square #{s}\n"
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# ----- Access a static member -----
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print "\nA total of #{Example::Shape.nshapes} shapes were created\n"
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# ----- Member data access -----
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# Set the location of the object
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# Notice how we can do this using functions specific to
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# the 'Circle' class.
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c.x = 20
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c.y = 30
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# Now use the same functions in the base class
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s.x = -10
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s.y = 5
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print "\nHere is their current position:\n"
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print " Circle = (", c.x, ",", c.y, ")\n"
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print " Square = (", s.x, ",", s.y, ")\n"
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# ----- Call some methods -----
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print "\nHere are some properties of the shapes:\n"
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for o in [c, s]
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print " #{o}\n"
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print " area = ", o.area, "\n"
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print " perimeter = ", o.perimeter, "\n"
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end
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# Notice how the Shape#area() and Shape#perimeter() functions really
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# invoke the appropriate virtual method on each object.
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print "\n", Example::Shape.nshapes," shapes remain\n"
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print "Goodbye\n"
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