/usr/share/texmf-texlive/metapost/metauml/util_group.mp is in texlive-metapost 2009-15.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 | % MetaUtil, an easier MetaPost life
% Copyright (C) 2005 Ovidiu Gheorghies
%
% This program is free software; you can redistribute it and/or
% modify it under the terms of the GNU General Public License
% as published by the Free Software Foundation; either version 2
% of the License, or (at your option) any later version.
%
% This program is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with this program; if not, write to the Free Software
% Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
if known _util_group_mp:
expandafter endinput
fi;
_util_group_mp:=1;
input util_object;
input util_commons;
input util_margins;
input util_log;
vardef GroupInfo@#(expr pleft, pright, ptop, pbottom)=
attributes(@#);
var(color) borderColor;
var(numeric) boxed;
@#boxed := 0;
@#borderColor := red;
Margins.@#(pleft, pright, ptop, pbottom);
enddef;
vardef GroupInfoCopy@#(text src)=
GroupInfo@#(src.left, src.right, src.top, src.bottom);
@#boxed := src.boxed;
@#borderColor := src.borderColor;
enddef;
GroupInfo.iGroup(2, 2, 2, 2);
GroupInfoCopy.iGroupBoxed(iGroup);
iGroupBoxed.boxed := 1;
vardef EGroup@#(text groupInfo)(text objects)=
ObjectEquations(@#);
@#className := "Group";
var(numeric) minx, maxx, miny, maxy;
var(numeric) nObjects;
var(string) objectsAsString;
GroupInfoCopy.@#info(groupInfo);
@#objectsAsString := enumToString(objects)("");
log @#objectsAsString;
@#nObjects := 0;
if @#objectsAsString <> "":
forsuffixes obj = scantokens @#objectsAsString:
@#nObjects := @#nObjects + 1;
endfor;
fi;
enddef;
vardef Group@#(text objects)=
EGroup@#(iGroup)(objects);
enddef;
vardef Group_layout@#=
if @#layedout = 0:
log "Needing layout for group " & (str @#);
@#layedout := 1;
if (@#objectsAsString = ""):
@#width = @#info.left + @#info.right;
@#height = @#info.top + @#info.bottom;
else:
log "Calling layout for objects group '" & (str @#) & "' ...";
log " object are: '" & @#objectsAsString & "'.";
layoutObjects(scantokens @#objectsAsString);
log "All objects in group '" & (str @#) & "' are now layed out.";
% As already tested, @#objectsAsString must be <> "".
% See page 53, User's manual for MetaPost
% "if some of the suffixes are empty, the loop gets
% executed, with the loop index parameter set to
% the empty suffix" (!)
log "Proceeding to finding min/max x/y of objects:";
log " " & @#objectsAsString;
__objectIndex := 0;
forsuffixes obj__ = scantokens @#objectsAsString:
if __objectIndex = 0:
log "First object " & str obj__;
@#minx := obj__.left;
log @#maxx;
log obj__.right;
@#maxx := obj__.right;
log @#maxx;
@#miny := obj__.bottom;
@#maxy := obj__.top;
__objectIndex := __objectIndex + 1;
else:
log "Current object " & str obj__;
log "comparing(min)";
log @#minx;
log @#obj__.left;
@#minx := min(@#minx)(obj__.left);
log "comparing(max)";
log @#maxx;
log @#obj__.right;
@#maxx := max(@#maxx)(obj__.right);
log "comparing(min)";
log @#miny;
log @#obj__.bottom;
@#miny := min(@#miny)(obj__.bottom);
log "comparing(max)";
log @#maxy;
log @#obj__.top;
@#maxy := max(@#maxy)(obj__.top);
__objectIndex := __objectIndex + 1;
fi;
endfor;
log "... done iterating";
log "maxx = ";
log @#maxx;
@#nw = (@#minx - @#info.left, @#maxy + @#info.top);
@#se = (@#maxx + @#info.right, @#miny - @#info.bottom);
log "Done performing actual layout for group " & str @#;
fi;
else:
log "NOT needing layout for group " & (str @#);
fi;
enddef;
vardef Group_draw@#=
log "Drawing group....";
Group_layout@#;
objectEnsurePositioning.@#;
if @#objectsAsString <> "":
drawObjects(scantokens @#objectsAsString);
fi;
if (@#info.boxed = 1):
draw objectBox(@#) withcolor @#info.borderColor;
fi;
enddef;
vardef Group_border@#=
objectBox(@#)
enddef;
|