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% MetaUML, a MetaPost library for typesetting exquisite UML diagrams.
% Copyright (C) 2006 Radu-George Radulescu, 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 _metauml_package_mp:
expandafter endinput
fi;
_metauml_package_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 metauml_defaults;
inputonce util_log;
vardef PackageInfo@#=
attributes(@#);
var(color) foreColor, borderColor;
var(numeric) forceEmptyContent;
var(numeric) minimumNameContentsDifference;
FontInfo.@#iFont(metauml_defaultFont, defaultscale);
@#iFont.ignoreNegativeBase := 1;
PictureInfo.@#iText (2, 2, 2, 2)(@#iFont);
PictureStackInfo.@#iNameStack (2, 2, 2, 2)(9)(@#iText);
@#iNameStack.iPict.ignoreNegativeBase := 1;
Margins.@#(2,2,2,2);
ShadeInfo.@#iShade;
@#foreColor := .9white;
@#borderColor := black;
@#forceEmptyContent := 0;
@#minimumNameContentsDifference := 20;
GroupInfo.@#iContentsGroup(2, 2, 10, 2);
enddef;
vardef PackageInfoCopy@#(text src)=
log "PackageInfoCopy: Copying package info";
attributes(@#);
var(color) foreColor, borderColor;
var(numeric) forceEmptyContent;
var(numeric) minimumNameContentsDifference;
PictureStackInfoCopy.@#iNameStack (src.iNameStack);
MarginsCopy.@#(src);
ShadeInfoCopy.@#iShade(src.iShade);
@#foreColor := src.foreColor;
@#borderColor := src.borderColor;
@#forceEmptyContent := src.forceEmptyContent;
@#minimumNameContentsDifference := src.minimumNameContentsDifference;
GroupInfoCopy.@#iContentsGroup(src.iContentsGroup);
enddef;
PackageInfo.iPackage;
vardef Package@#(text contents)(text _subItems)=
EPackage.@#(iPackage)(contents)(_subItems);
enddef;
vardef EPackage@#(text _info)(text contents)(text _subItems)=
ObjectEquations(@#);
@#className := "Package";
PackageInfoCopy.@#info(_info);
numeric @#nLines; @#nLines := 0;
string @#lines[];
% numeric @#nSubItems; @#nSubItems := 0;
numeric @#nameInCenter; @#nameInCenter := 0;
for l=contents:
@#lines[@#nLines] := l;
@#nLines := @#nLines + 1;
endfor;
% for s=_subItems:
% @#nSubItems := @#nSubItems + 1;
% endfor;
EGroup.@#subItems(@#info.iContentsGroup)(_subItems);
EPictureStack.@#nameStack(@#info.iNameStack)(scantokens listArray(@#lines)(@#nLines))("vcenterbase");
enddef;
vardef Package_layout@#=
if @#layedout = 1:
log "Package '" & (str @#) & "' has already been layed out";
else:
@#layedout := 1;
log "Package layout: '" & (str @#) & "'";
log "Package name layout '" & (str @#) & "'...";
PictureStack_layout.@#nameStack;
log "SubItems for package layout '" & (str @#) & "'...";
Group_layout.@#subItems;
log "All elements in package '" & (str @#) & "' successfully layed out, integrating...";
if @#subItems.nObjects = 0:
if @#info.forceEmptyContent = 0:
@#nameInCenter := 1;
fi;
fi;
if @#subItems.width < @#nameStack.width + @#info.minimumNameContentsDifference:
@#contentWidth = @#nameStack.width + @#info.minimumNameContentsDifference;
else:
@#contentWidth = lmax(@#nameStack.width, @#subItems.width);
fi;
if @#nameInCenter = 1:
@#height = @#info.top + @#info.bottom + @#nameStack.height;
@#width = @#info.left + @#info.right + @#nameStack.width;
@#nameStack.sw = @#sw + (@#info.left, @#info.bottom);
else:
@#nameStack.sw = @#nw;
@#width = @#contentWidth + @#info.left + @#info.right;
@#height = @#info.top + @#info.bottom + @#subItems.height;
fi;
@#subItems.n = @#n + (0, -((@#height - @#subItems.height)/2));
log "Package layout for " & (str @#) & " ended.";
fi;
enddef;
vardef Package_draw@#=
Package_layout.@#;
objectEnsurePositioning.@#;
attributes(@#);
var(path) border, nameStackBorder, emptyNameBorder;
@#border := @#ne -- @#nw -- @#sw -- @#se -- cycle;
@#nameStackBorder := @#nameStack.ne -- @#nameStack.nw -- @#nameStack.sw -- @#nameStack.se -- cycle;
@#emptyNameBorder := @#nw -- @#nw + (0, 10) -- @#n + (0, 10) -- @#n -- cycle;
drawObjectShade(@#);
fill @#border withcolor @#info.foreColor;
draw @#border withcolor @#info.borderColor;
if @#nameInCenter = 0:
fill @#nameStackBorder withcolor @#info.foreColor;
draw @#nameStackBorder withcolor @#info.borderColor;
else:
fill @#emptyNameBorder withcolor @#info.foreColor;
draw @#emptyNameBorder withcolor @#info.borderColor;
fi;
drawObject(@#nameStack);
drawObject(@#subItems);
enddef;
vardef Package_border@#=
@#border
enddef;
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