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% Copyright 2005 2015 Ovidiu Gheorghies
% Licensed under the Apache License, Version 2.0.
if known _metauml_paths_mp:
expandafter endinput
fi;
_metauml_paths_mp:=1;
def pathDirect(expr pA,pB) =
pA--pB
enddef;
vardef pathManhattanX(text twoParams) =
pair pointA__, pointB__;
string paramA_str__, paramB_str__;
boolean paramA_isObject__, paramB_isObject__;
paramA_isObject__ := true;
paramB_isObject__ := true;
boolean isFirstParam__;
isFirstParam__ := true;
%string twoParams;
%twoParams := "";
%twoParams := str paramA & ", " & str paramB;
%%includeonce% show "the two params are: " & twoParams;
forsuffixes param__ = twoParams:
if isFirstParam__:
isFirstParam__ := false;
paramA_str__ := str param__;
%includeonce% show "paramA_str__ <-- " & paramA_str__;
if not known (scantokens (paramA_str__ & ".className")):
%includeonce% show "paramA is not an object";
paramA_isObject__ := false;
fi;
else:
paramB_str__ := str param__;
%includeonce% show "paramB_str__ <-- " & paramB_str__;
if not known (scantokens (paramB_str__ & ".className")):
%includeonce% show "paramB is not an object";
paramB_isObject__ := false;
fi;
fi;
endfor;
%includeonce% show paramA_str__;
%includeonce% show paramA_isObject__;
%includeonce% show paramB_str__;
%includeonce% show paramB_isObject__;
string stringPath__;
stringPath__ := "(0,0)--(50,50)";
if (not paramA_isObject__) and (not paramB_isObject__):
%includeonce% show "Both are points!";
stringPath__ := paramA_str__ & "--(xpart " & paramB_str__ & ", ypart " & paramA_str__ & ") -- " & paramB_str__;
%includeonce% show stringPath__;
else:
pair refPointA__, refPointB__;
if paramA_isObject__:
refPointA__ := scantokens (paramA_str__ & ".c");
else:
refPointA__ := scantokens paramA_str__;
fi;
if paramB_isObject__:
refPointB__ := scantokens (paramB_str__ & ".c");
else:
refPointB__ := scantokens paramB_str__;
fi;
%includeonce% show "Reference point A: ";
%includeonce% show refPointA__;
%includeonce% show "Reference point B: ";
%includeonce% show refPointB__;
numeric dx__, dy__;
dx__ := xpart refPointB__ - xpart refPointA__;
dy__ := ypart refPointB__ - ypart refPointA__;
string addornmentA__;
addornmentA__ := "";
string addornmentB__;
addornmentB__ := "";
if (paramA_isObject__):
if (dx__ > 0):
addornmentA__ := ".e";
else:
addornmentA__ := ".w";
fi;
fi;
if (paramB_isObject__):
if (dy__ > 0):
addornmentB__ := ".s";
else:
addornmentB__ := ".n";
fi;
fi;
stringPath__ := "pathManhattanX(" & paramA_str__ & addornmentA__ & ", " & paramB_str__ & addornmentB__ & ")";
%includeonce% show stringPath;
%includeonce% show "-------------------> recursive call";
fi;
scantokens stringPath__
enddef;
vardef rpathManhattanX(text twoParams) =
reverse pathManhattanX(twoParams)
enddef;
vardef pathManhattanY(expr pA,pB) =
pA--(xpart(pA), ypart(pB))--pB
enddef;
vardef rpathManhattanY(expr pA,pB) =
pB--(xpart(pA), ypart(pB))--pA
enddef;
vardef pathStepX(expr pA,pB, deltax) =
pA--(pA+(deltax, 0))--(((xpart pA)+deltax), ypart(pB))--pB
enddef;
vardef rpathStepX(expr pA,pB, deltax) =
pB--(((xpart pA)+deltax), ypart(pB))--(pA+(deltax, 0))--pA
enddef;
vardef pathStepY(expr pA,pB, deltay) =
pA--(pA+(0, deltay))--(xpart(pB), ((ypart pA)+deltay))--pB
enddef;
vardef rpathStepY(expr pA,pB, deltay) =
pB--(xpart(pB), ((ypart pA)+deltay))--(pA+(0, deltay))--pA
enddef;
vardef pathHorizontal(expr pA, untilX) =
pA--(untilX,ypart(pA))
enddef;
vardef rpathHorizontal(expr pA, untilX) =
(untilX,ypart(pA))--pA
enddef;
vardef pathVertical(expr pA, untilY) =
pA--(xpart(pA), untilY)
enddef;
vardef rpathVertical(expr pA, untilY) =
(xpart(pA), untilY)--pA
enddef;
% Cuts path thePath so that it won't intersect the objects
% objectA and objectB. The border of the objects is obtained
% by invoking the method "_border".
%
vardef pathCut(suffix objectA, objectB)(expr thePath)=
save timeA, timeB;
timeA = xpart (thePath intersectiontimes objectBorder(objectA));
timeB = xpart (thePath intersectiontimes objectBorder(objectB));
subpath (timeA, timeB) of thePath
enddef;
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