b-tree-node.tex

\documentclass{article}
\usepackage[pdftex,active,tightpage]{preview}
\setlength\PreviewBorder{2mm}

\usepackage{tikz}
\usetikzlibrary{calc,shapes.multipart,chains,arrows,positioning}

\tikzset{
    font=\tt,
    >= stealth,
    every picture/.style={thick},
    pointer/.style={*->},
    node/.style={
        align=center,
        rectangle split, rectangle split horizontal,
        rectangle split parts=#1,
        draw,
        anchor=center,
        rectangle split part align={center},
        rectangle split empty part width=1.5,
        rectangle split part fill = {orange!50, blue!50, white}
    }
}

\begin{document}
\begin{preview}
\begin{tikzpicture}

    \node[align=center, draw, fill=yellow]{
        \tikz \node[node=13] (A) {
            \nodepart{one}\tiny False
            \nodepart{two}5
            \nodepart{three}
            \nodepart{four}-3
            \nodepart{five}
            \nodepart{six}0
            \nodepart{seven}
            \nodepart{eight}4
            \nodepart{nine}
            \nodepart{ten}17
            \nodepart{eleven}
            \nodepart{twelve}42
            \nodepart{thirteen}
        };
    };

    \node[orange!80] at ($(A.one)+(0, 0.6)$)     {$\scriptscriptstyle isLeaf$};
    \node[blue!80] at ($(A.two)+(0, -0.5)$)    {$\scriptscriptstyle n$};
    \node[gray] at ($(A.three)+(0, 0.6)$)   {$\scriptscriptstyle c_1$};
    \node[gray] at ($(A.four)+(0, -0.5)$)    {$\scriptscriptstyle key_1$};
    \node[gray] at ($(A.five)+(0, 0.6)$)   {$\scriptscriptstyle c_2$};
    \node[gray] at ($(A.six)+(0, -0.5)$)    {$\scriptscriptstyle key_2$};
    \node[gray] at ($(A.seven)+(0, 0.6)$)   {$\scriptscriptstyle c_3$};
    \node[gray] at ($(A.eight)+(0, -0.5)$)    {$\scriptscriptstyle key_3$};
    \node[gray] at ($(A.nine)+(0, 0.6)$)   {$\scriptscriptstyle c_4$};
    \node[gray] at ($(A.ten)+(0, -0.5)$)    {$\scriptscriptstyle key_4$};
    \node[gray] at ($(A.eleven)+(0, 0.6)$)   {$\scriptscriptstyle c_5$};
    \node[gray] at ($(A.twelve)+(0, -0.5)$)    {$\scriptscriptstyle key_5$};
    \node[gray] at ($(A.thirteen)+(0, 0.6)$)   {$\scriptscriptstyle c_1$};

    \draw[pointer] ($(A.three) + (0, 0.15)$) -- +(0,-1) node[] {};
    \draw[pointer] ($(A.five)  + (0, 0.15)$) -- +(0,-1) node[] {};
    \draw[pointer] ($(A.seven)  + (0, 0.15)$) -- +(0,-1) node[] {};
    \draw[pointer] ($(A.nine)  + (0, 0.15)$) -- +(0,-1) node[] {};
    \draw[pointer] ($(A.eleven)  + (0, 0.15)$) -- +(0,-1) node[] {};
    \draw[pointer] ($(A.thirteen)  + (0, 0.15)$) -- +(0,-1) node[] {};

\end{tikzpicture}
\end{preview}
\end{document}