Matlab装饰模式

根据所给的例子，本人用matlab语言写了装饰器模式

shape.m

classdef shape < handle
    methods(abstract)        
        draw(obj);
    end
end

circle.m

classdef circle < shape
    methods
        function draw(~)
           disp('shape: circle');
        end
    end
end

rectangle.m

classdef rectangle < shape
    methods
        function draw(~)
            disp('shape: rectangle')
        end
    end
end

shapedecorator.m

classdef shapedecorator < shape
    properties
        shape
    end
    
    methods
        function obj = shapedecorator(shape)
            obj.shape=shape;
        end
        function draw(obj)
            obj.shape.draw();
        end
    end
end

redshapedecorator.m

classdef redshapedecorator < shapedecorator
    methods
        function obj = redshapedecorator(shape)
            obj = obj@shapedecorator(shape);
        end
        function draw(obj)
            draw@shapedecorator(obj);
            disp('border color:red');
        end
    end
end

测试代码：

circle = circle();
redcircle =redshapedecorator(circle());
redrectangle = redshapedecorator(rectangle());
 
disp('circle with normal border');
circle.draw();
 
disp('circle of red border');
redcircle.draw();
 
disp('rectangle of red border');
redrectangle.draw();