diff options
Diffstat (limited to 'tex/context/base/mkiv/page-flt.lua')
| -rw-r--r-- | tex/context/base/mkiv/page-flt.lua | 105 |
1 files changed, 77 insertions, 28 deletions
diff --git a/tex/context/base/mkiv/page-flt.lua b/tex/context/base/mkiv/page-flt.lua index 53780e420..41a35d47b 100644 --- a/tex/context/base/mkiv/page-flt.lua +++ b/tex/context/base/mkiv/page-flt.lua @@ -9,12 +9,17 @@ if not modules then modules = { } end modules ['page-flt'] = { -- floats -> managers.floats -- some functions are a tex/lua mix so we need a separation +local next = next +local tostring = tostring local insert, remove = table.insert, table.remove local find = string.find +local abs = math.abs -local trace_floats = false trackers.register("graphics.floats", function(v) trace_floats = v end) -- name might change +local trace_floats = false trackers.register("floats.caching", function(v) trace_floats = v end) +local trace_collecting = false trackers.register("floats.collecting", function(v) trace_collecting = v end) -local report_floats = logs.reporter("structure","floats") +local report_floats = logs.reporter("floats","caching") +local report_collecting = logs.reporter("floats","collecting") local C, S, P, lpegmatch = lpeg.C, lpeg.S, lpeg.P, lpeg.match @@ -22,6 +27,7 @@ local C, S, P, lpegmatch = lpeg.C, lpeg.S, lpeg.P, lpeg.match -- text page leftpage rightpage (todo: top, bottom, margin, order) local setdimen = tex.setdimen +local getdimen = tex.getdimen local setcount = tex.setcount local texsetbox = tex.setbox local textakebox = nodes.takebox @@ -78,14 +84,25 @@ function floats.pop() end end -local function setdimensions(b) - local w, h, d = 0, 0, 0 +local function setdimensions(t,b) + local bw, bh, bd = 0, 0, 0 + local nw, nh, nd = 0, 0, 0 if b then - w, h, d = b.width, b.height, b.depth + bw = b.width + bh = b.height + bd = b.depth end - setdimen("global","floatwidth", w) - setdimen("global","floatheight", h+d) - return w, h, d + if t then + nw = t.width or bw + nh = t.height or bh + nd = t.depth or bd + end + setdimen("global","floatwidth", bw) + setdimen("global","floatheight", bh+bd) + setdimen("global","naturalfloatwd", nw) + setdimen("global","naturalfloatht", nh) + setdimen("global","naturalfloatdp", nd) + return bw, bh, bd, nw, nh, dp end local function get(stack,n,bylabel) @@ -115,9 +132,12 @@ function floats.save(which,data) local stack = stacks[which] noffloats = noffloats + 1 local t = { - n = noffloats, - data = data or { }, - box = b, + n = noffloats, + data = data or { }, + width = getdimen("naturalfloatwd"), + height = getdimen("naturalfloatht"), + depth = getdimen("naturalfloatdp"), + box = b, } insert(stack,t) -- inspect(stacks) @@ -138,9 +158,11 @@ function floats.resave(which) which = which or default local stack = stacks[which] local b = textakebox("floatbox") + if not b then + report_floats("resaved float is empty") + end last.box = b insert(stack,1,last) --- inspect(stacks) setcount("global","savednoffloats",#stacks[default]) if trace_floats then report_floats("%s, category %a, number %a, slot %a width %p, height %p, depth %p","resaving", @@ -155,15 +177,14 @@ end function floats.flush(which,n,bylabel) which = which or default --- inspect(stacks) local stack = stacks[which] local t, b, n = get(stack,n or 1,bylabel) if t then if not b then showmessage("floatblocks",1,t.n) end + local w, h, d = setdimensions(t,b) if trace_floats then - local w, h, d = setdimensions(b) -- ? report_floats("%s, category %a, number %a, slot %a width %p, height %p, depth %p","flushing", which,t.n,n,w,h,d) else @@ -172,7 +193,7 @@ function floats.flush(which,n,bylabel) texsetbox("floatbox",b) last = remove(stack,n) last.box = nil - setcount("global","savednoffloats",#stacks[default]) -- default? + setcount("global","savednoffloats",#stacks[which]) -- default? else setdimensions() end @@ -183,7 +204,7 @@ function floats.consult(which,n) local stack = stacks[which] local t, b, n = get(stack,n) if t then - local w, h, d = setdimensions(b) + local w, h, d = setdimensions(t,b) if trace_floats then report_floats("%s, category %a, number %a, slot %a width %p, height %p, depth %p","consulting", which,t.n,n,w,h,d) @@ -198,16 +219,46 @@ function floats.consult(which,n) end function floats.collect(which,maxwidth,distance) - which = which or default - local stack = stacks[which] - local n, m = #stack, 0 - for i=1,n do + local usedwhich = which or default + local stack = stacks[usedwhich] + local stacksize = #stack + local collected = 0 + local maxheight = 0 + local maxdepth = 0 + + local function register() + collected = collected + 1 + maxwidth = rest + if h > maxheight then + maxheight = h + end + if d > maxdepth then + maxdepth = d + end + end + + for i=1,stacksize do local t, b, n = get(stack,i) if t then - local w, h, d = setdimensions(b) - if w + distance < maxwidth then - m = m + 1 - maxwidth = maxwidth - w - distance + local w, h, d, nw = setdimensions(t,b) + -- we use the real width + w = nw + -- which could be an option + local rest = maxwidth - w - (1 == 1 and 0 or distance) + local fits = rest > -10 + if trace_collecting then + report_collecting("%s, category %a, number %a, slot %a width %p, rest %p, fit %a","collecting", + usedwhich,t.n,n,w,rest,fits) + end + if fits then + collected = collected + 1 + maxwidth = rest + if h > maxheight then + maxheight = h + end + if d > maxdepth then + maxdepth = d + end else break end @@ -215,10 +266,8 @@ function floats.collect(which,maxwidth,distance) break end end - if m == 0 then - m = 1 - end - setcount("global","nofcollectedfloats",m) + setcount("global","nofcollectedfloats",collected) + setdimen("global","maxcollectedfloatstotal",maxheight+maxdepth) end function floats.getvariable(name,default) |