diff options
Diffstat (limited to 'tex/context/base/page-flt.lua')
| -rw-r--r-- | tex/context/base/page-flt.lua | 181 |
1 files changed, 131 insertions, 50 deletions
diff --git a/tex/context/base/page-flt.lua b/tex/context/base/page-flt.lua index 11aa2be21..e91285d0a 100644 --- a/tex/context/base/page-flt.lua +++ b/tex/context/base/page-flt.lua @@ -21,20 +21,23 @@ local C, S, P, lpegmatch = lpeg.C, lpeg.S, lpeg.P, lpeg.match -- we use floatbox, floatwidth, floatheight -- text page leftpage rightpage (todo: top, bottom, margin, order) -local copy_node_list = node.copy_list +local copy_node_list = node.copy_list +local flush_node_list = node.flush_list +local copy_node = node.copy -local setdimen = tex.setdimen -local setcount = tex.setcount -local texgetbox = tex.getbox -local texsetbox = tex.setbox +local setdimen = tex.setdimen +local setcount = tex.setcount +local texgetbox = tex.getbox +local texsetbox = tex.setbox +local textakebox = nodes.takebox -floats = floats or { } -local floats = floats +floats = floats or { } +local floats = floats -local noffloats = 0 -local last = nil -local default = "text" -local pushed = { } +local noffloats = 0 +local last = nil +local default = "text" +local pushed = { } local function initialize() return { @@ -105,21 +108,20 @@ end function floats.save(which,data) which = which or default - local b = texgetbox("floatbox") + local b = textakebox("floatbox") if b then local stack = stacks[which] noffloats = noffloats + 1 - local w, h, d = b.width, b.height, b.depth local t = { n = noffloats, data = data or { }, - box = copy_node_list(b), + box = b, } - texsetbox("floatbox",nil) insert(stack,t) setcount("global","savednoffloats",#stacks[default]) if trace_floats then - report_floats("%s, category %a, number %a, slot %a, width %p, height %p, depth %p","saving",which,noffloats,#stack,w,h,d) + report_floats("%s, category %a, number %a, slot %a, width %p, height %p, depth %p","saving", + which,noffloats,#stack,b.width,b.height,b.depth) else interfaces.showmessage("floatblocks",2,noffloats) end @@ -132,14 +134,13 @@ function floats.resave(which) if last then which = which or default local stack = stacks[which] - local b = texgetbox("floatbox") - local w, h, d = b.width, b.height, b.depth - last.box = copy_node_list(b) - texsetbox("floatbox",nil) + local b = textakebox("floatbox") + last.box = b insert(stack,1,last) 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",which,noffloats,#stack,w,h,d) + report_floats("%s, category %a, number %a, slot %a width %p, height %p, depth %p","resaving", + which,noffloats,#stack,b.width,b.height,b.depth) else interfaces.showmessage("floatblocks",2,noffloats) end @@ -153,9 +154,10 @@ function floats.flush(which,n,bylabel) local stack = stacks[which] local t, b, n = get(stack,n or 1,bylabel) if t then - local w, h, d = setdimensions(b) if trace_floats then - report_floats("%s, category %a, number %a, slot %a width %p, height %p, depth %p","flushing",which,t.n,n,w,h,d) + 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 interfaces.showmessage("floatblocks",3,t.n) end @@ -173,9 +175,10 @@ 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) 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) + local w, h, d = setdimensions(b) + report_floats("%s, category %a, number %a, slot %a width %p, height %p, depth %p","consulting", + which,t.n,n,w,h,d) end return t, b, n else @@ -239,10 +242,14 @@ function floats.checkedpagefloat(packed) end end -function floats.nofstacked() +function floats.nofstacked(which) return #stacks[which or default] or 0 end +function floats.hasstacked(which) + return (#stacks[which or default] or 0) > 0 +end + -- todo: check for digits ! local method = C((1-S(", :"))^1) @@ -270,27 +277,101 @@ end -- interface -local context = context -local setvalue = context.setvalue - -commands.flushfloat = floats.flush -commands.savefloat = floats.save -commands.resavefloat = floats.resave -commands.pushfloat = floats.push -commands.popfloat = floats.pop -commands.consultfloat = floats.consult -commands.collectfloat = floats.collect - -function commands.getfloatvariable (...) local v = floats.getvariable(...) if v then context(v) end end -function commands.checkedpagefloat (...) local v = floats.checkedpagefloat(...) if v then context(v) end end - -function commands.nofstackedfloats (...) context(floats.nofstacked(...)) end -function commands.doifelsesavedfloat(...) commands.doifelse(floats.nofstacked(...)>0) end - -function commands.analysefloatmethod(str) -- currently only one method - local method, label, row, column = floats.analysemethod(str) - setvalue("floatmethod",method or "") - setvalue("floatlabel", label or "") - setvalue("floatrow", row or "") - setvalue("floatcolumn",column or "") -end +local context = context +local commands = commands +local implement = interfaces.implement +local setmacro = interfaces.setmacro + +implement { + name = "flushfloat", + actions = floats.flush, + arguments = { "string", "integer" }, +} + +implement { + name = "flushlabeledfloat", + actions = floats.flush, + arguments = { "string", "string", true }, +} + +implement { + name = "savefloat", + actions = floats.save, + arguments = "string" +} + +implement { + name = "savespecificfloat", + actions = floats.save, + arguments = { + "string", + { + { "specification" }, + { "label" }, + } + } +} + +implement { + name = "resavefloat", + actions = floats.resave, + arguments = "string" +} + +implement { + name = "pushfloat", + actions = floats.push +} + +implement { + name = "popfloat", + actions = floats.pop +} + +implement { + name = "consultfloat", + actions = floats.consult, + arguments = "string", +} + +implement { + name = "collectfloat", + actions = floats.collect, + arguments = { "string", "dimen", "dimen" } +} + +implement { + name = "getfloatvariable", + actions = { floats.getvariable, context }, + arguments = "string" +} + +implement { + name = "checkedpagefloat", + actions = { floats.checkedpagefloat, context }, + arguments = "string" +} + +implement { + name = "nofstackedfloats", + actions = { floats.nofstacked, context }, + arguments = "string" +} + +implement { + name = "doifelsestackedfloats", + actions = { floats.hasstacked, commands.doifelse }, + arguments = "string" +} + +implement { + name = "analysefloatmethod", + actions = function(str) + local method, label, row, column = floats.analysemethod(str) + setmacro("floatmethod",method or "") + setmacro("floatlabel", label or "") + setmacro("floatrow", row or "") + setmacro("floatcolumn",column or "") + end, + arguments = "string" +} |