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%-------------------------------------------------------------------------------
% qcow2_addressing.tex - addressing of QCOW2 data clusters as image
%-------------------------------------------------------------------------------
% author : Manuel Bentele
% date : Aug 29, 2019
% copyright: (c) 2019 Manuel Bentele
%-------------------------------------------------------------------------------
\begin{tikzpicture}[
arrow/.style = {-triangle 45},
datacluster/.style = {rectangle, draw, fill = dat,
minimum width = 0.1\textwidth, minimum height = 0.1\textheight},
heading/.style = {font = \Large}
]
\node[inner sep = 0, anchor = north] (l1table) at (0, 0) {
\begin{tabular}{|p{0.25\textwidth}|} \hline
\cellcolor{dat} \\ \hline
\\ \hline
\cellcolor{dat} \\ \hline
\\ \hline
\end{tabular}
};
\node[inner sep = 0, anchor = north] (l2table1) at (0.5\textwidth, 0) {
\begin{tabular}{|p{0.25\textwidth}|} \hline
\\ \hline
\\ \hline
\cellcolor{dat} \\ \hline
\\ \hline
\cellcolor{dat} \\ \hline
\end{tabular}
};
\node[inner sep = 0, below = 0.75 of l2table1] (l2table2) {
\begin{tabular}{|p{0.25\textwidth}|} \hline
\\ \hline
\cellcolor{dat} \\ \hline
\cellcolor{dat} \\ \hline
\\ \hline
\cellcolor{dat} \\ \hline
\end{tabular}
};
\node[inner sep = 0, anchor = north, datacluster] (data1) at (0.9\textwidth, 0) {};
\node[inner sep = 0, below = 0.5 of data1, datacluster] (data2) {};
\node[inner sep = 0, below = 0.5 of data2, datacluster] (data3) {};
\node[inner sep = 0, below = 0.5 of data3, datacluster] (data4) {};
\node[inner sep = 0, below = 0.5 of data4, datacluster] (data5) {};
\node[above = 0.5 of l1table, heading] {L1~table};
\node[above = 0.5 of l2table1, heading] {L2~tables};
\node[above = 0.5 of data1, heading] {Data clusters};
\draw[arrow] ($(l1table.north east)!0.125!(l1table.south east)$) -- ($(l2table1.north west)!0.1!(l2table1.south west)$);
\draw[arrow] ($(l1table.north east)!0.625!(l1table.south east)$) -- ($(l2table2.north west)!0.1!(l2table2.south west)$);
\draw[arrow] ($(l2table1.north east)!0.5!(l2table1.south east)$) -- (data1.west);
\draw[arrow] ($(l2table1.north east)!0.9!(l2table1.south east)$) -- (data2.west);
\draw[arrow] ($(l2table2.north east)!0.3!(l2table2.south east)$) -- (data3.west);
\draw[arrow] ($(l2table2.north east)!0.5!(l2table2.south east)$) -- (data4.west);
\draw[arrow] ($(l2table2.north east)!0.9!(l2table2.south east)$) -- (data5.west);
\end{tikzpicture}
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