diff options
Diffstat (limited to 'tex/context/base/strc-ref.lua')
| -rw-r--r-- | tex/context/base/strc-ref.lua | 125 |
1 files changed, 112 insertions, 13 deletions
diff --git a/tex/context/base/strc-ref.lua b/tex/context/base/strc-ref.lua index 3f2c0608d..8a2a668c0 100644 --- a/tex/context/base/strc-ref.lua +++ b/tex/context/base/strc-ref.lua @@ -76,6 +76,8 @@ local references = structures.references local lists = structures.lists local counters = structures.counters +local jobpositions = job.positions + -- some might become local references.defined = references.defined or allocate() @@ -387,10 +389,28 @@ function references.set(kind,prefix,tag,data) return n > 0 end +-- function references.enhance(prefix,tag) +-- local l = tobesaved[prefix][tag] +-- if l then +-- l.references.realpage = texgetcount("realpageno") +-- end +-- end + +local getpos = function() getpos = backends.codeinjections.getpos return getpos () end + +local function synchronizepage(reference) -- non public helper + reference.realpage = texgetcount("realpageno") + if jobpositions.used then + reference.x, reference.y = getpos() + end +end + +references.synchronizepage = synchronizepage + function references.enhance(prefix,tag) local l = tobesaved[prefix][tag] if l then - l.references.realpage = texgetcount("realpageno") + synchronizepage(l.references) end end @@ -2056,12 +2076,71 @@ local specials = references.testspecials -- pretty slow (progressively). In the pagebody one can best check the reference -- real page to determine if we need contrastlocation as that is more lightweight. -local function checkedpagestate(n,page) - local r = referredpage(n) +local function checkedpagestate(n,page,actions,position,spread) local p = tonumber(page) if not p then return 0 - elseif p > r then + end + if position and #actions > 0 then + local i = actions[1].i -- brrr + if i then + local a = i.references + if a then + local x = a.x + local y = a.y + if x and y then + local jp = jobpositions.collected[position] + if jp then + local px = jp.x + local py = jp.y + local pp = jp.p + if p == pp then + -- same page + if py > y then + return 5 -- above + elseif py < y then + return 4 -- below + elseif px > x then + return 4 -- below + elseif px < x then + return 5 -- above + else + return 1 -- same + end + elseif spread then + if pp % 2 == 0 then + -- left page + if pp > p then + return 2 -- before + elseif pp + 1 == p then +-- return 4 -- below (on right page) + return 5 -- above (on left page) + else + return 3 -- after + end + else + -- right page + if pp < p then + return 3 -- after + elseif pp - 1 == p then +-- return 5 -- above (on left page) + return 4 -- below (on right page) + else + return 2 -- before + end + end + elseif pp > p then + return 2 -- before + else + return 3 -- after + end + end + end + end + end + end + local r = referredpage(n) -- sort of obsolete + if p > r then return 3 -- after elseif p < r then return 2 -- before @@ -2104,7 +2183,7 @@ end -- at this moment only the real reference page is analyzed -- normally such an analysis happens in the backend code -function references.analyze(actions) +function references.analyze(actions,position,spread) if not actions then actions = references.currentset end @@ -2119,24 +2198,44 @@ function references.analyze(actions) elseif actions.external then actions.pagestate = 0 else - actions.pagestate = checkedpagestate(actions.n,realpage) + actions.pagestate = checkedpagestate(actions.n,realpage,actions,position,spread) end end return actions end -function commands.referencepagestate(actions) - if not actions then - actions = references.currentset - end +-- function commands.referencepagestate(actions) +-- if not actions then +-- actions = references.currentset +-- end +-- if not actions then +-- context(0) +-- else +-- if not actions.pagestate then +-- references.analyze(actions) -- delayed unless explicitly asked for +-- end +-- context(actions.pagestate) +-- end +-- end + +function commands.referencepagestate(position,detail,spread) + local actions = references.currentset if not actions then context(0) else if not actions.pagestate then - references.analyze(actions) -- delayed unless explicitly asked for --- print("NO STATE",actions.reference,actions.pagestate) + references.analyze(actions,position,spread) -- delayed unless explicitly asked for + end + local pagestate = actions.pagestate + if detail then + context(pagestate) + elseif pagestate == 4 then + context(2) -- compatible + elseif pagestate == 5 then + context(3) -- compatible + else + context(pagestate) end - context(actions.pagestate) end end |