Cfrgtkky

I would like to use argurments of a first tizkset to give them to a second tikset.This is my code

documentclass{article}

usepackage{tikz}

tikzset{pics/message/.style={code={

draw (0,0) rectangle (4,1);

draw foreach X in {1,2,3} {(X,0) -- (X,1)}; 

%someone gave me two lines and i can't figure out how they work

foreach X [count=Y,evaluate=Y as Z using {Y-0.5}] in {#1} %1

{node at (Z,0.5) {X}; %2

ifnumY=4

breakforeach 

fi}

}}}

tikzset{pics/broadcast/.style={code={begin{scope}[local bounding box=#1]

draw (0,0) rectangle (6,5);

pic at (1,3) {message={1,2,3,4}};

end{scope}

}}}    

begin{document}

begin{tikzpicture}

pic at (0,0) {message={1,2,3,4}}; %instead it should be the params of broadcast

pic at (0,3) {broadcast};

end{tikzpicture}

end{document}

To draw me this:

I would like to call rectangle like that:

pic at (0,0) {broadcast={1,2,3,4}};

While changing this line in the broadcast method:

pic at (1,3) {message={1,2,3,4}}; %actually

pic at (1,3) {message={%every param of broadcast%}}; % What I want

How can I do this?

Here is a proposal. It is not absolutely fool proof. In its present form, if you call a message pic and a broadcast pic afterwards, the message gets broadcasted. To intercept broadcasting, use broadcastfalse after the message pic.

documentclass{article}

usepackage{tikz}

newififbroadcast

broadcastfalse

tikzset{pics/message/.style={code={xdefLastMessage{#1}

draw (0,0) rectangle (4,1);

draw foreach X in {1,2,3} {(X,0) -- (X,1)}; 

%someone gave me two lines and i can't figure out how they work

ifbroadcast

 foreach X [count=Y,evaluate=Y as Z using {Y-0.5}] in #1 %1

 {node at (Z,0.5) {X}; %2

 ifnumY=4

 breakforeach 

 fi}

else

 foreach X [count=Y,evaluate=Y as Z using {Y-0.5}] in {#1} %1

 {node at (Z,0.5) {X}; %2

 ifnumY=4

 breakforeach 

 fi}

fi

}}}

tikzset{pics/broadcast/.style={code={begin{scope}[local bounding box=#1]

draw (0,0) rectangle (6,5);

ifxLastMessageempty

pic at (1,3) {message};

else

broadcasttrue

pic at (1,3) {message=LastMessage};

fi

end{scope}

}}}    

begin{document}

begin{tikzpicture}

pic at (0,0) {message={1,2,3,4}}; %instead it should be the params of broadcast

pic at (0,3) {broadcast};

end{tikzpicture}

end{document}