\documentclass{article}
\usepackage{pstricks}
\usepackage{pst-node,pst-3d}
\usepackage{pst-blur}
\definecolor{Pink}{rgb}{1.,0.75,0.8}

\makeatletter
\newsavebox\TBox
\newcommand\psParaBox[2][]{{
  \psset{framesep=5pt,gangle=60,#1}%
  \sbox\TBox{\psTilt{\psk@gangle}{\psframebox{\phantom{ #2}}}}%
  \usebox\TBox%  
  \rput(-0.5\wd\TBox,\dimexpr 0.5\ht\TBox-0.5ex\relax){ #2}}}
\makeatother
\usepackage{xepersian}
\pagestyle{empty}
\begin{document}
\begin{latin}
  \psset{shadowcolor=black!70,blur}
  \begin{psmatrix}[rowsep=0.4,colsep=0.5]
    \psovalbox{Begin} \\
    \psParaBox[fillstyle=solid,fillcolor=red!40]{Initialisations} \\
    \psdiabox{Special} &
       \psframebox[shadow=true]{Call to SP1} & \psframebox[shadow=true]{Call to SP2 \rl{متن فارسی می‌نویسم.}} \\
    \psframebox{Action 1} \\
    ~\\
    \psframebox{Action 2} \\
    \psovalbox{End}
    % Links
    \ncline{->}{1,1}{2,1}
    \ncline{->}{2,1}{3,1}
    \ncline{->}{3,1}{4,1}<{\textcolor{red}{No}}
    \ncline{->}{4,1}{6,1}
    \ncline{->}{6,1}{7,1}
    \ncline{->}{3,1}{3,2}^{\textcolor{red}{Yes}}
    \ncline{->}{3,2}{3,3}
    \ncbar[angleA=-90,armB=0,nodesepB=0.25]{->}{3,3}{4,1}
  \end{psmatrix}
  \end{latin}
\end{document}