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-rw-r--r--tex/context/base/attr-lay.mkiv82
1 files changed, 38 insertions, 44 deletions
diff --git a/tex/context/base/attr-lay.mkiv b/tex/context/base/attr-lay.mkiv
index 9c9c3318e..67cd204e2 100644
--- a/tex/context/base/attr-lay.mkiv
+++ b/tex/context/base/attr-lay.mkiv
@@ -13,51 +13,51 @@
\writestatus{loading}{ConTeXt Attribute Macros / Viewerlayers}
-%D Currently there is a limitation in mixed inline usage. This has to do with the fact
-%D that we have a stacked model but cannot determine where to revert to (as we can
-%D have AABBCCAA ranges). Maybe I'll solve that one day. It only affects nested inline
-%D layers and these make not much sense anyway. We'd have to store the complete nesting
-%D stack in the attribute in order to be able to cross pages and that demands a new
-%D mechanism.
-
\unprotect
\registerctxluafile{attr-lay}{1.001}
% needs to work over stopitemize grouping etc
-\installcorenamespace{viewerlayer}
-
-\installcommandhandler \??viewerlayer {viewerlayer} \??viewerlayer
+% \def\registerviewerlayer#1#2% global !
+% {\setxvalue{\??ql:#1}{\global\attribute\viewerlayerattribute\ctxlua{tex.write(attributes.viewerlayers.register('#2'))} }}
+%
+% \setevalue{\??ql:}{\global\attribute\viewerlayerattribute\attributeunsetvalue}
-\setupviewerlayer
+\getparameters
+ [\??lr]
[\c!state=\v!start,
\c!title=,
\c!printable=\v!yes,
\c!scope=\v!local, % maybe global but needs checking with layout
\c!method=\v!none]
-\appendtoks
- \ctxcommand{defineviewerlayer{
- tag = "\currentviewerlayer",
- title = "\viewerlayerparameter\c!title",
- visible = "\viewerlayerparameter\c!state",
- editable = "\v!yes",
- printable = "\viewerlayerparameter\c!printable",
- scope = "\viewerlayerparameter\c!scope"
- }}%
- \doif{\viewerlayerparameter\c!method}\v!command
- {\setuxvalue{\e!start#1}{\startviewerlayer[\currentviewerlayer]}%
- \setuxvalue{\e!stop #1}{\stopviewerlayer}}%
-\to \everydefineviewerlayer
-
-\unexpanded\def\startviewerlayer[#1]{\ctxcommand{startviewerlayer("#1")}} % not grouped
-\unexpanded\def\stopviewerlayer {\ctxcommand{stopviewerlayer()}} % not grouped
+\def\defineviewerlayer
+ {\dodoubleargument\dodefineviewerlayer}
+
+\def\dodefineviewerlayer[#1][#2]% document wide properties
+ {\begingroup
+ \getparameters[\??lr][#2]%
+ \ctxcommand{defineviewerlayer{
+ tag = "#1",
+ title = "\@@lrtitle",
+ visible = "\@@lrstate",
+ editable = "\v!yes",
+ printable = "\@@lrprintable",
+ scope = "\@@lrscope"
+ }}%
+ \doif\@@lrmethod\v!command
+ {\setugvalue{\e!start#1}{\startviewerlayer[#1]}%
+ \setugvalue{\e!stop #1}{\stopviewerlayer }}%
+ \endgroup}
+
+\unexpanded\def\startviewerlayer[#1]{\ctxcommand{startviewerlayer("#1")}} % not grouped
+\unexpanded\def\stopviewerlayer {\ctxcommand{stopviewerlayer()}} % not grouped
\unexpanded\def\viewerlayer [#1]{\groupedcommand{\startviewerlayer[#1]}{\stopviewerlayer}} % grouped
% some day we will keep this at the lua end as the info is only needed there
-\newtoks\currentviewerlayertoks % soon we can set macros at the lua end
+\let\currentviewerlayer\empty \newtoks\currentviewerlayertoks % soon we can set macros at the lua end
\def\currentviewerlayer{\the\currentviewerlayertoks}
@@ -67,9 +67,7 @@
% layout components are implemented rather directly (speed)
-\installcorenamespace{layoutcomponentattribute}
-
-\def\attr_layoutcomponent_initialize#1%
+\def\doinitializelayoutcomponent#1%
{\edef\layoutcomponentboxattribute{\ctxcommand{definedviewerlayer{%
tag = "#1",
title = utilities.strings.nice("#1"), % only here as in steps we have step:<number>
@@ -78,28 +76,24 @@
printable = "\v!yes"
}}}%
\edef\layoutcomponentboxattribute{attr \viewerlayerattribute \layoutcomponentboxattribute\relax}%
- \expandafter\glet\csname\??layoutcomponentattribute#1\endcsname\layoutcomponentboxattribute}
+ \expandafter\glet\csname\??lr:a:#1\endcsname\layoutcomponentboxattribute}
-\def\attr_layoutcomponent_set#1% make this faster
- {\expandafter\let\expandafter\layoutcomponentboxattribute\csname\??layoutcomponentattribute#1\endcsname
+\def\dosetlayoutcomponentattribute#1% make this faster
+ {\expandafter\let\expandafter\layoutcomponentboxattribute\csname\??lr:a:#1\endcsname
\ifx\layoutcomponentboxattribute\relax
- \attr_layoutcomponent_initialize{#1}% get rid of { }
+ \doinitializelayoutcomponent{#1}% get rid of { }
\fi}
-\def\attr_layoutcomponent_reset
+\def\doresetlayoutcomponentattribute
{\let\layoutcomponentboxattribute\empty}
\let\setlayoutcomponentattribute \gobbleoneargument
\let\resetlayoutcomponentattribute\relax
\let\layoutcomponentboxattribute \empty
-\unexpanded\def\showlayoutcomponents
- {%\ctxlua{attributes.viewerlayers.enable()}% automatic
- \let\setlayoutcomponentattribute \attr_layoutcomponent_set
- \let\resetlayoutcomponentattribute\attr_layoutcomponent_reset}
-
-\appendtoks
- \ctxcommand{cleanuplayers()}%
-\to \everyshipout
+\def\showlayoutcomponents
+ {\ctxlua{attributes.viewerlayers.enable()}% will go
+ \let\setlayoutcomponentattribute \dosetlayoutcomponentattribute
+ \let\resetlayoutcomponentattribute\doresetlayoutcomponentattribute}
\protect \endinput