/usr/share/texlive/texmf-dist/metapost/metauml/util_object.mp is in texlive-metapost 2013.20140215-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 | % 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_object_mp:
expandafter endinput
fi;
_util_object_mp:=1;
% Sadly, this copy of the macro is needed to prevent multiple file loads being shown by MetaPost.
% The guard values (such as _metauml_mp) do ensure that the file isn't loaded multiple times,
% but this macro makes sure that MetaPost won't try to load the file and display a message for that.
def inputonce text libraryFile=
if not known scantokens ("_" & str libraryFile & "_mp"):
%includeonce% show "Loading " & str libraryFile;
scantokens ("input " & str libraryFile);
else:
%includeonce% show str libraryFile & " already loaded.";
fi;
enddef;
inputonce util_infrastructure;
inputonce util_log;
def ObjectEquations(suffix $)=
attributes($);
var(pair) n, ne, e, se, s, sw, w, nw, c;
var(pair) dim;
var(numeric) width, height;
var(numeric) left, right;
var(numeric) top, bottom;
var(numeric) midx, midy;
var(picture) pict;
var(string) className;
var(numeric) layedout, drawn;
$.layedout := 0;
$.drawn := 0;
$.left = xpart $.nw = xpart $.sw;
$.right = xpart $.ne = xpart $.se;
$.top = ypart $.ne = ypart $.nw;
$.bottom = ypart $.se = ypart $.sw;
$.w = .5[$.nw,$.sw];
$.s = .5[$.sw,$.se];
$.e = .5[$.ne,$.se];
$.n = .5[$.ne,$.nw];
$.c = .5[$.nw, $.se];
$.width = $.right - $.left;
$.height = $.top - $.bottom;
$.midx = xpart($.c);
$.midy = ypart($.c);
xpart $.dim = $.width;
ypart $.dim = $.height;
$.className := "Object";
enddef;
def objectBox(text obj)=
obj.nw -- obj.ne -- obj.se -- obj.sw -- cycle
enddef;
vardef objectBorder(suffix @#)=
save methodName;
string methodName;
methodName := @#className & "_border";
log "invoking " & methodName & " arg=" & str @#;
scantokens (methodName).@#
enddef;
vardef Object_toString(text obj)=
save ret; string ret;
ret := "Generic object";
ret
enddef;
vardef toString(suffix @#)=
scantokens (@#className & "_toString").@#
enddef;
vardef layoutObject(suffix @#)=
save methodName;
string methodName;
methodName := @#className & "_layout";
log "invoking " & methodName & " arg=" & str @#;
scantokens (methodName).@#;
enddef;
vardef drawObject(suffix @#)=
save methodName;
string methodName;
methodName := @#className & "_draw";
log "invoking " & methodName & " arg=" & str @#;
scantokens (methodName).@#;
enddef;
vardef drawObjectShade(suffix @#)=
fill objectBorder(@#) shifted
(@#.info.iShade.shift, -@#.info.iShade.shift) withcolor @#.info.iShade.background;
enddef;
vardef objectEnsurePositioning@#=
if unknown (xpart @#nw):
log "*** WARNING: DEFAULTING OBJECT'S (" & (str @#) & ") x TO 0";
xpart @#nw = 0;
fi;
if unknown (ypart @#nw):
log "*** WARNING: DEFAULTING OBJECT'S (" & (str @#) & ") y TO 0";
ypart @#nw = 0;
fi;
enddef;
vardef drawObjectAt(suffix @#)(text eq)=
eq;
drawObject(@#);
enddef;
vardef layoutObjects(text objects)=
log "Layout objects...";
forsuffixes o = objects:
if (str o) <> "":
layoutObject(o);
fi;
endfor;
enddef;
vardef drawObjects(text objects)=
% This needs to be done first in order to allow for equations which define
% relative positioning to be appropiately solved. Otherwise, for example,
% object0 may be positioned somewhere by default, and object1 also, leading
% to inconsitent equations. Inconsistency would have been caused by the fact that the
% positioning equations become meaningful only after object layout is performed
% --- but that would have been too late, since the positioning would have been
% done already to inappropriate values.
%
layoutObjects(objects);
forsuffixes o = objects:
if (str o) <> "":
drawObject(o);
fi;
endfor;
enddef;
%%
%% Joins the given pictures according to the equation given
%% by the pictureDoJoin macro. Note: the pictureDoJoin macro
%% can be conveniently set by calling setPicutureJoin macro.
%%
%% Usage example:
%% joinObjects (p, q, r);
%%
def joinObjects(text pictures)=
save skipFirstPicture;
skipFirstPicture := 1;
forsuffixes p=pictures:
if skipFirstPicture=0:
objectDoJoin(previousPic, p);
else:
% first picture is skipped
skipFirstPicture := 0;
fi;
def previousPic=p enddef;
endfor;
enddef;
%%
%% Sets the macro pictureDoJoin, which is used by joinObjects to join
%% one picture into another.
%%
%% The pictureDoJoin macro has two arguments: pa and pb.
%% pa represents the first picture and pb the second picture.
%% The second picture is positioned relatively to pa as specified
%% by the given equation.
%%
%% Usage examples:
%%
%% % place the second picture at the bottom of the first
%% setPictureJoin(pa.sw = pb.nw);
%%
%% % place the second picture at the right of the first
%% setPictureJoin(pa.ne = pb.nw);
%%
def setObjectJoin(text eq)=
def objectDoJoin(suffix pa, pb)=eq enddef;
enddef;
%%
%% A shortcut for setting the join equation and actually performing the join.
%
def joinObjectsEq(text objects)(text eq)=
setObjectJoin(eq);
joinObjects(objects);
enddef;
%%
%% Joins the pictures and draws them. A shorthand for
%% the corresponding two macro invocations.
%%
def joinDrawObjects(text pictures)=
joinObjects(pictures);
drawObjects(pictures);
enddef;
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