%%
%% This is file `tikz-flowchart.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% tikz-flowchart.dtx  (with options: `package')
%% 
%% This is a generated file.
%% 
%% Copyright (C) 2019 by Geng Nan <nangeng@nwsuaf.edu.cn>
%% 
%% This work may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%% The latest version of this license is in
%% 
%%     http://www.latex-project.org/lppl.txt
%% 
%% and version 1.3 or later is part of all distributions of LaTeX
%% version 2005/12/01 or later.
%% 
\NeedsTeXFormat{LaTeX2e}[2011/06/27]
\ProvidesPackage{tikz-flowchart}
  [2019/08/20 v1.0.01 draw flowchart using TikZ]
\RequirePackage{tikz}
\RequirePackage{xifthen}
\RequirePackage{kvoptions}
\SetupKeyvalOptions{
  family=flowchart,
  prefix=flowchart@,
  setkeys=\kvsetkeys
}
\DeclareBoolOption[false]{debug}
\DeclareDefaultOption{}
\kvsetkeys{flowchart}{}
\ProcessKeyvalOptions*

\usetikzlibrary{
  arrows.meta,      % 箭头形状
  shapes.geometric, % 几何形状
  chains,           % 链式布局
  calc,             % 坐标计算
}
\pgfkeys{
  /flowchart/.is family,
  /flowchart/.search also={/tikz},
}

\def\flowchartset{\pgfqkeys{/flowchart}}
\flowchartset{
  free color/.store in = \freecolor, % 自由连线颜色
  norm color/.store in = \normcolor, % 常规连线颜色
  cong color/.store in = \congcolor, % 关联连线颜色
  proc fill color/.store in = \procfillcolor, % 顺序处理框填充颜色
  test fill color/.store in = \testfillcolor, % 判断框填充颜色
  io fill color/.store in = \iofillcolor, % 输入/输出框填充颜色
  term fill color/.store in = \termfillcolor, % 开始/结束框填充颜色
  proc text width/.store in = \proctxtwd, % 顺序处理框宽度
  test text width/.store in = \testtxtwd, % 判断框宽度
  io text width/.store in = \iotxtwd, % 输入/输出框宽度
  term text width/.store in = \termtxtwd, % 开始/结束宽度
  chain direction/.store in = \chaindir, % 结点自动布置方向
  minimum node distance/.store in = \minnodedis, % 最小结点间距
  maximum node distance/.store in = \maxnodedis, % 最大结点间距
  border line width/.store in = \bdlinewd, % 各类流程框边框宽度
  flow line width/.store in = \flowlinewd, % 各类流程线线条宽度
  stealth length/.store in = \stealthlen, % 箭头长度
  stealth width/.store in = \stealthwd, % 箭头宽度
}
\flowchartset{
  free color = green, % 自由连线颜色(默认取green)
  norm color = blue, % 常规连线颜色(默认取blue)
  cong color = red, % 关联连线颜色(默认取red)
  proc fill color = white, % 顺序处理框填充颜色(默认取白色)
  test fill color = white, % 判断框填充颜色(默认取白色)
  io fill color = white, % 输入/输出框填充颜色(默认取白色)
  term fill color = white, % 开始/结束框填充颜色(默认取白色)
  proc text width = 8em, % 顺序处理框宽度(默认取8em)
  test text width = 5em, % 判断框宽度(默认取5em)
  io text width = 6em, % 输入/输出框宽度(默认取6em)
  term text width = 3em, % 开始/结束宽度(默认取3em)
  chain direction = below, % 结点自动布置方向(默认取below)
  minimum node distance = 6mm, % 最小结点间距(默认取6mm)
  maximum node distance = 60mm, % 最大结点间距(默认取60mm)
  border line width = \pgflinewidth, % 各类流程框边框宽度(默认取当前线条宽度)
  flow line width = \pgflinewidth, % 各类流程线线条宽度(默认取当前线条宽度)
  stealth length = 1.5mm, % 箭头长度(默认取1.5mm)
  stealth width = 1.0mm, % 箭头宽度(默认取1.0mm)
}
\tikzset{
  start chain = going \chaindir,    % 结点自动布置方向(默认取below)
  node distance = \minnodedis and \maxnodedis, % 结点间距
  every join/.style = {norm},   % 默认自动连接线的连线样式
  % 流程框样式的基础样式
  base/.style = {line width = \bdlinewd, % 边框线宽
                 draw,                   % 绘制边框
                 on chain,               % 沿布局方向绘制
                 on grid,                % 沿网格布局
                 align=center,           % 内容居中对齐
                 minimum height=2ex,      % 流程框最小高度
                },
  % 顺序处理框样式
  proc/.style={base,           % 基础样式
               rectangle,      % 矩形边框
               text width=\proctxtwd, % 最大文本宽度(超过会自动换行)
               fill=\procfillcolor, % 填充色
              },
  % 判断框样式
  test/.style={base,           % 基础样式
               diamond,        % 菱形边框
               aspect=2.5,       % 长高比例
               text width=\testtxtwd, % 最大文本宽度(超过会自动换行)
               fill=\testfillcolor, % 填充色
              },
  % 输入/输出框样式
  io/.style={base,                      % 基础样式
             trapezium,                 % 平行四边形
             trapezium left angle=70,   % 平行四边形左倾角
             trapezium right angle=110, % 平行四边形右倾角
             text width=\iotxtwd,            % 最大文本宽度(超过会自动换行)
             fill=\iofillcolor, % 填充色
            },
  % 开始/结束框样式
  term/.style={proc,            % 基于proc样式
               rounded corners=2.0mm, % 为矩形添加圆角属性
               text width=\termtxtwd, % 最大文本宽度(超过会自动换行)
               fill=\termfillcolor, % 填充色
              },
  % 流程连接点样式
  connector/.style = {draw,              % 绘制边框
                      circle,            % 圆形
                      node distance=3cm, % 节点间距
                     },
  % 绕接连线点样式(不相交的两个交汇路径)
  connect/.style args={(#1) to (#2) over (#3) by #4}{
    insert path={
      let \p1=($(#1)-(#3)$), \n1={veclen(\x1,\y1)},
        \n2={atan2(\y1,\x1)}, \n3={abs(#4)}, \n4={#4>0 ?-180:180}  in
        (#1) -- ($(#1)!\n1-\n3!(#3)$) arc (\n2:\n2+\n4:\n3) -- (#2)
    }
  },
  % coord结点样式(用于布置流程线连接点)
  coord/.style={coordinate,                 % 笛卡尔坐标系
                %on chain,                   % 沿布局方向绘制
                %on grid,                    % 沿网格布局
                node distance=6mm and 25mm, % 节点间距
               },
  % nmark结点样式(用于布置调试坐标标记点)
  nmark/.style={draw,                           % 绘制边框
                cyan,                           % 青色
                circle,                         % 圆形
                font={\sffamily\bfseries}, % 字体
               },
  % -------------------------------------------------
  % 无箭头连线样式
  lnorm/.style={line width = \flowlinewd,  % 线宽
                draw,                      % 绘制
                \normcolor,                % 颜色
               },
  lfree/.style={line width = \flowlinewd,
                draw,
                \freecolor,
               },
  lcong/.style={line width = \flowlinewd,
                draw,
                \congcolor,
               },
  % 流程线实心交点样式
  dotnorm/.style={draw,              % 绘制
                  fill = \normcolor, % 填充颜色
                  \normcolor,        % 颜色
                 },
  dotfree/.style={draw,
                  fill = \freecolor,
                  \freecolor,
                 },
  dotcong/.style={draw,
                  fill = \congcolor,
                  \congcolor,
                 },
  % 流程线空心交点样式
  cdotnorm/.style={draw,       % 绘制
                   \normcolor, % 颜色
                  },
  cdotfree/.style={draw,
                   \freecolor,
                  },
  cdotcong/.style={draw,
                   \congcolor,
                  },
  % 带箭头连线样式
  norm/.style={line width = \flowlinewd,     % 线宽
               -{Stealth[length=\stealthlen, % 箭头长度
                         width=\stealthwd,   % 箭头宽度
                        ]
                },
               draw,                        % 绘制
               \normcolor,                  % 颜色
              },
  free/.style={line width = \flowlinewd,
               -{Stealth[length=\stealthlen,
                         width=\stealthwd,
                        ]
                },
               draw,
               \freecolor,
              },
  cong/.style={line width = \flowlinewd,
               -{Stealth[length=\stealthlen,
                         width=\stealthwd,
                        ]
                },
               draw,
               \congcolor,
              },
  % 斜体字样式
  it/.style={font={\small\itshape}},
}
%% 判断是否为宏包传入了debug参数以打开调试功能，若没有传入debug参数，则关闭调试功能。
\ifflowchart@debug
  % 设置一个用于调试的标记符号图层，注意确保这一图层位于顶层
  \pgfdeclarelayer{marx}
  \pgfsetlayers{main,marx}
  \newcommand{\cmark}[2][]{%
  \begin{pgfonlayer}{marx}
    \node [nmark] at (c#2#1) {#2};
  \end{pgfonlayer}{marx}
  }
\else
  \newcommand{\cmark}[2][]{\relax}
\fi
\endinput
%%
%% End of file `tikz-flowchart.sty'.