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% Copyright 2005 2015 Radu-George Radulescu
% Licensed under the Apache License, Version 2.0.
if known _metauml_instance_mp:
expandafter endinput
fi;
_metauml_instance_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;
inputonce util_picture;
inputonce util_picture_stack;
inputonce util_shade;
vardef InstanceInfo@#=
attributes(@#);
var(color) foreColor, borderColor;
FontInfo.@#nameFont(metauml_defaultFont, defaultscale);
FontInfo.@#attributeFont(metauml_defaultFont, defaultscale);
ShadeInfo.@#iShade;
@#foreColor := .9white;
@#borderColor := black;
PictureInfo.@#iName (2, 2, 1, 3)(@#nameFont);
PictureInfo.@#iAttribute (2, 2, 1.25, 0)(@#attributeFont);
PictureStackInfo.@#iAttributeStack (2, 2, 2.5, 2)(10.5)(@#iAttribute); % 8.5
@#iAttributeStack.iPict.bottom := 2;
@#iName.ignoreNegativeBase := 1;
@#iAttributeStack.iPict.ignoreNegativeBase := 1;
enddef;
vardef InstanceInfoCopy@#(text src)=
log "InstanceInfoCopy: Copying Instance";
attributes(@#);
var(color) foreColor, borderColor;
FontInfoCopy.@#nameFont(src.nameFont);
FontInfoCopy.@#attributeFont(src.attributeFont);
ShadeInfoCopy.@#iShade(src.iShade);
@#foreColor := src.foreColor;
@#borderColor := src.borderColor;
PictureInfoCopy.@#iName (src.iName);
PictureInfoCopy.@#iAttribute (src.iAttribute);
PictureStackInfoCopy.@#iAttributeStack (src.iAttributeStack);
enddef;
InstanceInfo.iInstance;
%
% Instance
%
vardef defInstance@#(expr pname) =
ObjectEquations(@#);
@#className := "Instance";
string @#name;
@#name = pname;
string @#attributes[];
numeric @#nAttrs;
@#nAttrs := 0;
enddef;
vardef Instance_addAttribute@#(expr pcontent) =
@#.attributes[@#.nAttrs] := pcontent;
@#.nAttrs := @#.nAttrs + 1;
enddef;
vardef EInstance@#(text _info)(expr name)(text attributes)=
log "EInstance begin";
defInstance@#(name);
log "Copying Instance info";
InstanceInfoCopy.@#info(_info);
for a = attributes:
log "Adding attribute ", a;
Instance_addAttribute@#(a);
endfor;
enddef;
vardef Instance@#(expr name)(text attributes)=
EInstance@#(iInstance)(name)(attributes);
enddef;
vardef Instance_border@#=
objectBox(@#)
enddef;
vardef Instance_layout@# =
if @#laidout = 1:
log "Instance " & (str @#) & " has already been layed out";
else:
@#laidout := 1;
log "Instance layout: " & (str @#);
@#maxFeatureWidth := 0;
EPicture.@#namePict(@#info.iName)(@#name);
EPictureStack.@#attributeStack(@#info.iAttributeStack)
(scantokens listArray(@#attributes)(@#nAttrs))("vleftbase");
layoutObjects(@#namePict, @#attributeStack);
@#maxFeatureWidth := lmax(@#namePict.width, @#attributeStack.width) + 1;
@#namePict.midx = @#midx;
@#namePict.top = @#top - 1;
@#attributeStack.top = @#namePict.bottom - 1;
@#attributeStack.left = @#left;
@#width = @#maxFeatureWidth;
@#bottom = @#attributeStack.bottom;
log "Layout done...";
fi;
enddef;
vardef Instance_drawFeatures@#=
log "Drawing name";
drawObject(@#namePict);
log "Underlining name";
pair A, B;
A := @#namePict.se + (-@#namePict.info.left, @#namePict.info.bottom-1);
B := @#namePict.sw + (@#namePict.info.right, @#namePict.info.bottom-1);
draw A--B;
log "Drawing attribute stack";
drawObject(@#attributeStack);
enddef;
vardef Instance_paintSkin@# =
log "Painting Instance skin...";
drawObjectShade(@#);
fill Instance_border.@# withcolor @#info.foreColor;
draw Instance_border.@# withcolor @#info.borderColor;
draw (xpart @#nw, @#attributeStack.top)--(xpart @#se, @#attributeStack.top) withcolor @#info.borderColor;
enddef;
vardef Instance_draw@#=
log "draw Instance begin...";
Instance_layout.@#;
objectEnsurePositioning.@#;
Instance_paintSkin.@#;
Instance_drawFeatures.@#;
enddef;
vardef Instance_setDebugMode@#=
@#.info.iName.boxed := 1;
@#.info.iAttributeStack.boxed := 1;
@#.info.iAttributeStack.iPict.boxed := 1;
enddef;
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