diff options
Diffstat (limited to 'tex/context/base/trac-vis.lua')
| -rw-r--r-- | tex/context/base/trac-vis.lua | 1852 |
1 files changed, 926 insertions, 926 deletions
diff --git a/tex/context/base/trac-vis.lua b/tex/context/base/trac-vis.lua index 3dc7aa9d2..df4909c3e 100644 --- a/tex/context/base/trac-vis.lua +++ b/tex/context/base/trac-vis.lua @@ -1,926 +1,926 @@ -if not modules then modules = { } end modules ['trac-vis'] = {
- version = 1.001,
- comment = "companion to trac-vis.mkiv",
- author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
- copyright = "PRAGMA ADE / ConTeXt Development Team",
- license = "see context related readme files"
-}
-
-local string, number, table = string, number, table
-local node, nodes, attributes, fonts, tex = node, nodes, attributes, fonts, tex
-local type = type
-local format = string.format
-local formatters = string.formatters
-
--- This module started out in the early days of mkiv and luatex with
--- visualizing kerns related to fonts. In the process of cleaning up the
--- visual debugger code it made sense to integrate some other code that
--- I had laying around and replace the old supp-vis debugging code. As
--- only a subset of the old visual debugger makes sense it has become a
--- different implementation. Soms of the m-visual functionality will also
--- be ported. The code is rather trivial. The caching is not really needed
--- but saves upto 50% of the time needed to add visualization. Of course
--- the overall runtime is larger because of color and layer processing in
--- the backend (can be times as much) so the runtime is somewhat larger
--- with full visualization enabled. In practice this will never happen
--- unless one is demoing.
-
--- We could use pdf literals and re stream codes but it's not worth the
--- trouble because we would end up in color etc mess. Maybe one day I'll
--- make a nodeinjection variant.
-
--- todo: global switch (so no attributes)
--- todo: maybe also xoffset, yoffset of glyph
--- todo: inline concat (more efficient)
-
-local nodecodes = nodes.nodecodes
-local disc_code = nodecodes.disc
-local kern_code = nodecodes.kern
-local glyph_code = nodecodes.glyph
-local disc_code = nodecodes.disc
-local hlist_code = nodecodes.hlist
-local vlist_code = nodecodes.vlist
-local glue_code = nodecodes.glue
-local penalty_code = nodecodes.penalty
-local whatsit_code = nodecodes.whatsit
-local user_code = nodecodes.user
-local gluespec_code = nodecodes.gluespec
-
-local kerncodes = nodes.kerncodes
-local font_kern_code = kerncodes.fontkern
-local user_kern_code = kerncodes.userkern
-
-local gluecodes = nodes.gluecodes
-local cleaders_code = gluecodes.cleaders
-local userskip_code = gluecodes.userskip
-local space_code = gluecodes.space
-local xspace_code = gluecodes.xspace
-local leftskip_code = gluecodes.leftskip
-local rightskip_code = gluecodes.rightskip
-
-local whatsitcodes = nodes.whatsitcodes
-
-local concat_nodes = nodes.concat
-local hpack_nodes = node.hpack
-local vpack_nodes = node.vpack
-local hpack_string = typesetters.hpack
-local fast_hpack_string = typesetters.fast_hpack
-local copy_node = node.copy
-local copy_list = node.copy_list
-local free_node = node.free
-local free_node_list = node.flush_list
-local insert_node_before = node.insert_before
-local insert_node_after = node.insert_after
-local fast_hpack = nodes.fasthpack
-local traverse_nodes = node.traverse
-
-local tex_attribute = tex.attribute
-local tex_box = tex.box
-local unsetvalue = attributes.unsetvalue
-
-local current_font = font.current
-
-local exheights = fonts.hashes.exheights
-local emwidths = fonts.hashes.emwidths
-local pt_factor = number.dimenfactors.pt
-
-local nodepool = nodes.pool
-local new_rule = nodepool.rule
-local new_kern = nodepool.kern
-local new_glue = nodepool.glue
-local new_penalty = nodepool.penalty
-
-local tracers = nodes.tracers
-local visualizers = nodes.visualizers
-
-local setcolor = tracers.colors.set
-local setlistcolor = tracers.colors.setlist
-local settransparency = tracers.transparencies.set
-local setlisttransparency = tracers.transparencies.setlist
-
-local starttiming = statistics.starttiming
-local stoptiming = statistics.stoptiming
-
-local a_visual = attributes.private("visual")
-local a_fontkern = attributes.private("fontkern")
-local a_layer = attributes.private("viewerlayer")
-
-local hasbit = number.hasbit
-local bit = number.bit
-local setbit = number.setbit
-local clearbit = number.clearbit
-
-local trace_hbox
-local trace_vbox
-local trace_vtop
-local trace_kern
-local trace_glue
-local trace_penalty
-local trace_fontkern
-local trace_strut
-local trace_whatsit
-local trace_user
-
-local report_visualize = logs.reporter("visualize")
-
-local modes = {
- hbox = 1,
- vbox = 2,
- vtop = 4,
- kern = 8,
- glue = 16,
- penalty = 32,
- fontkern = 64,
- strut = 128,
- whatsit = 256,
- glyph = 512,
- simple = 1024,
- simplehbox = 1024 + 1,
- simplevbox = 1024 + 2,
- simplevtop = 1024 + 4,
- user = 2048,
-}
-
-local modes_makeup = { "hbox", "vbox", "kern", "glue", "penalty" }
-local modes_boxes = { "hbox", "vbox" }
-local modes_all = { "hbox", "vbox", "kern", "glue", "penalty", "fontkern", "whatsit", "glyph", "user" }
-
-local usedfont, exheight, emwidth
-local l_penalty, l_glue, l_kern, l_fontkern, l_hbox, l_vbox, l_vtop, l_strut, l_whatsit, l_glyph, l_user
-
-local enabled = false
-local layers = { }
-
-local preset_boxes = modes.hbox + modes.vbox
-local preset_makeup = preset_boxes + modes.kern + modes.glue + modes.penalty
-local preset_all = preset_makeup + modes.fontkern + modes.whatsit + modes.glyph + modes.user
-
-function visualizers.setfont(id)
- usedfont = id or current_font()
- exheight = exheights[usedfont]
- emwidth = emwidths[usedfont]
-end
-
--- we can preset a bunch of bits
-
-local function enable()
- if not usedfont then
- -- we use a narrow monospaced font
- visualizers.setfont(fonts.definers.define { name = "lmmonoltcond10regular", size = tex.sp("4pt") })
- end
- for mode, value in next, modes do
- local tag = formatters["v_%s"](mode)
- attributes.viewerlayers.define {
- tag = tag,
- title = formatters["visualizer %s"](mode),
- visible = "start",
- editable = "yes",
- printable = "yes"
- }
- layers[mode] = attributes.viewerlayers.register(tag,true)
- end
- l_hbox = layers.hbox
- l_vbox = layers.vbox
- l_vtop = layers.vtop
- l_glue = layers.glue
- l_kern = layers.kern
- l_penalty = layers.penalty
- l_fontkern = layers.fontkern
- l_strut = layers.strut
- l_whatsit = layers.whatsit
- l_glyph = layers.glyph
- l_user = layers.user
- nodes.tasks.enableaction("shipouts","nodes.visualizers.handler")
- report_visualize("enabled")
- enabled = true
- tex.setcount("global","c_syst_visualizers_state",1) -- so that we can optimize at the tex end
-end
-
-local function setvisual(n,a,what) -- this will become more efficient when we have the bit lib linked in
- if not n or n == "reset" then
- return unsetvalue
- elseif n == "makeup" then
- if not a or a == 0 or a == unsetvalue then
- a = preset_makeup
- else
- a = setbit(a,preset_makeup)
- -- for i=1,#modes_makeup do
- -- a = setvisual(modes_makeup[i],a)
- -- end
- end
- elseif n == "boxes" then
- if not a or a == 0 or a == unsetvalue then
- a = preset_boxes
- else
- a = setbit(a,preset_boxes)
- -- for i=1,#modes_boxes do
- -- a = setvisual(modes_boxes[i],a)
- -- end
- end
- elseif n == "all" then
- if what == false then
- return unsetvalue
- elseif not a or a == 0 or a == unsetvalue then
- a = preset_all
- else
- a = setbit(a,preset_all)
- -- for i=1,#modes_all do
- -- a = setvisual(modes_all[i],a)
- -- end
- end
- else
- local m = modes[n]
- if not m then
- -- go on
- elseif a == unsetvalue then
- if what == false then
- return unsetvalue
- else
- -- a = setbit(0,m)
- a = m
- end
- elseif what == false then
- a = clearbit(a,m)
- elseif not a or a == 0 then
- a = m
- else
- a = setbit(a,m)
- end
- end
- if not a or a == 0 or a == unsetvalue then
- return unsetvalue
- elseif not enabled then -- must happen at runtime (as we don't store layers yet)
- enable()
- end
- return a
-end
-
-function visualizers.setvisual(n)
- tex_attribute[a_visual] = setvisual(n,tex_attribute[a_visual])
-end
-
-function visualizers.setlayer(n)
- tex_attribute[a_layer] = layers[n] or unsetvalue
-end
-
-commands.setvisual = visualizers.setvisual
-commands.setlayer = visualizers.setlayer
-
-function commands.visual(n)
- context(setvisual(n))
-end
-
-local function set(mode,v)
- tex_attribute[a_visual] = setvisual(mode,tex_attribute[a_visual],v)
-end
-
-for mode, value in next, modes do
- trackers.register(formatters["visualizers.%s"](mode), function(v) set(mode,v) end)
-end
-
-trackers.register("visualizers.reset", function(v) set("reset", v) end)
-trackers.register("visualizers.all", function(v) set("all", v) end)
-trackers.register("visualizers.makeup",function(v) set("makeup",v) end)
-trackers.register("visualizers.boxes", function(v) set("boxes", v) end)
-
-local c_positive = "trace:b"
-local c_negative = "trace:r"
-local c_zero = "trace:g"
-local c_text = "trace:s"
-local c_space = "trace:y"
-local c_skip_a = "trace:c"
-local c_skip_b = "trace:m"
-local c_glyph = "trace:o"
-local c_white = "trace:w"
-
-local c_positive_d = "trace:db"
-local c_negative_d = "trace:dr"
-local c_zero_d = "trace:dg"
-local c_text_d = "trace:ds"
-local c_space_d = "trace:dy"
-local c_skip_a_d = "trace:dc"
-local c_skip_b_d = "trace:dm"
-local c_glyph_d = "trace:do"
-local c_white_d = "trace:dw"
-
-local function sometext(str,layer,color,textcolor) -- we can just paste verbatim together .. no typesteting needed
- local text = fast_hpack_string(str,usedfont)
- local size = text.width
- local rule = new_rule(size,2*exheight,exheight/2)
- local kern = new_kern(-size)
- if color then
- setcolor(rule,color)
- end
- if textcolor then
- setlistcolor(text.list,textcolor)
- end
- local info = concat_nodes {
- rule,
- kern,
- text,
- }
- setlisttransparency(info,c_zero)
- info = fast_hpack(info)
- if layer then
- info[a_layer] = layer
- end
- local width = info.width
- info.width = 0
- info.height = 0
- info.depth = 0
- return info, width
-end
-
-local f_cache = { }
-
-local function fontkern(head,current)
- local kern = current.kern
- local info = f_cache[kern]
- if info then
- -- print("hit fontkern")
- else
- local text = fast_hpack_string(formatters[" %0.3f"](kern*pt_factor),usedfont)
- local rule = new_rule(emwidth/10,6*exheight,2*exheight)
- local list = text.list
- if kern > 0 then
- setlistcolor(list,c_positive_d)
- elseif kern < 0 then
- setlistcolor(list,c_negative_d)
- else
- setlistcolor(list,c_zero_d)
- end
- setlisttransparency(list,c_text_d)
- settransparency(rule,c_text_d)
- text.shift = -5 * exheight
- info = concat_nodes {
- rule,
- text,
- }
- info = fast_hpack(info)
- info[a_layer] = l_fontkern
- info.width = 0
- info.height = 0
- info.depth = 0
- f_cache[kern] = info
- end
- head = insert_node_before(head,current,copy_list(info))
- return head, current
-end
-
-local w_cache = { }
-
-local tags = {
- open = "FIC",
- write = "FIW",
- close = "FIC",
- special = "SPE",
- localpar = "PAR",
- dir = "DIR",
- pdfliteral = "PDF",
- pdfrefobj = "PDF",
- pdfrefxform = "PDF",
- pdfrefximage = "PDF",
- pdfannot = "PDF",
- pdfstartlink = "PDF",
- pdfendlink = "PDF",
- pdfdest = "PDF",
- pdfthread = "PDF",
- pdfstartthread = "PDF",
- pdfendthread = "PDF",
- pdfsavepos = "PDF",
- pdfthreaddata = "PDF",
- pdflinkdata = "PDF",
- pdfcolorstack = "PDF",
- pdfsetmatrix = "PDF",
- pdfsave = "PDF",
- pdfrestore = "PDF",
- latelua = "LUA",
- closelua = "LUA",
- cancelboundary = "CBD",
- userdefined = "USR",
-}
-
-local function whatsit(head,current)
- local what = current.subtype
- local info = w_cache[what]
- if info then
- -- print("hit whatsit")
- else
- local tag = whatsitcodes[what]
- -- maybe different text colors per tag
- info = sometext(formatters["W:%s"](tag and tags[tag] or what),usedfont,nil,c_white)
- info[a_layer] = l_whatsit
- w_cache[what] = info
- end
- head, current = insert_node_after(head,current,copy_list(info))
- return head, current
-end
-
-local function user(head,current)
- local what = current.subtype
- local info = w_cache[what]
- if info then
- -- print("hit user")
- else
- info = sometext(formatters["U:%s"](what),usedfont)
- info[a_layer] = l_user
- w_cache[what] = info
- end
- head, current = insert_node_after(head,current,copy_list(info))
- return head, current
-end
-
-local b_cache = { }
-
-local function ruledbox(head,current,vertical,layer,what,simple)
- local wd = current.width
- if wd ~= 0 then
- local ht, dp = current.height, current.depth
- local next, prev = current.next, current.prev
- current.next, current.prev = nil, nil
- local linewidth = emwidth/10
- local baseline, baseskip
- if dp ~= 0 and ht ~= 0 then
- if wd > 20*linewidth then
- baseline = b_cache.baseline
- if not baseline then
- -- due to an optimized leader color/transparency we need to set the glue node in order
- -- to trigger this mechanism
- local leader = concat_nodes {
- new_glue(2*linewidth), -- 2.5
- new_rule(6*linewidth,linewidth,0), -- 5.0
- new_glue(2*linewidth), -- 2.5
- }
- -- setlisttransparency(leader,c_text)
- leader = fast_hpack(leader)
- -- setlisttransparency(leader,c_text)
- baseline = new_glue(0)
- baseline.leader = leader
- baseline.subtype = cleaders_code
- baseline.spec.stretch = 65536
- baseline.spec.stretch_order = 2
- setlisttransparency(baseline,c_text)
- b_cache.baseline = baseline
- end
- baseline = copy_list(baseline)
- baseline = fast_hpack(baseline,wd-2*linewidth)
- -- or new hpack node, set head and also:
- -- baseline.width = wd
- -- baseline.glue_set = wd/65536
- -- baseline.glue_order = 2
- -- baseline.glue_sign = 1
- baseskip = new_kern(-wd+linewidth)
- else
- baseline = new_rule(wd-2*linewidth,linewidth,0)
- baseskip = new_kern(-wd+2*linewidth)
- end
- end
- local this
- if not simple then
- this = b_cache[what]
- if not this then
- local text = fast_hpack_string(what,usedfont)
- this = concat_nodes {
- new_kern(-text.width),
- text,
- }
- setlisttransparency(this,c_text)
- this = fast_hpack(this)
- this.width = 0
- this.height = 0
- this.depth = 0
- b_cache[what] = this
- end
- end
- local info = concat_nodes {
- this and copy_list(this) or nil, -- this also triggers the right mode (else sometimes no whatits)
- new_rule(linewidth,ht,dp),
- new_rule(wd-2*linewidth,-dp+linewidth,dp),
- new_rule(linewidth,ht,dp),
- new_kern(-wd+linewidth),
- new_rule(wd-2*linewidth,ht,-ht+linewidth),
- baseskip,
- baseline,
- }
- setlisttransparency(info,c_text)
- info = fast_hpack(info)
- info.width = 0
- info.height = 0
- info.depth = 0
- info[a_layer] = layer
- local info = concat_nodes {
- current,
- new_kern(-wd),
- info,
- }
- info = fast_hpack(info,wd)
- if vertical then
- info = vpack_nodes(info)
- end
- if next then
- info.next = next
- next.prev = info
- end
- if prev then
-if prev.id == gluespec_code then
- -- weird, how can this happen, an inline glue-spec
-else
- info.prev = prev
- prev.next = info
-end
- end
- if head == current then
- return info, info
- else
- return head, info
- end
- else
- return head, current
- end
-end
-
-local function ruledglyph(head,current)
- local wd = current.width
- if wd ~= 0 then
- local ht, dp = current.height, current.depth
- local next, prev = current.next, current.prev
- current.next, current.prev = nil, nil
- local linewidth = emwidth/20
- local baseline
- if dp ~= 0 and ht ~= 0 then
- baseline = new_rule(wd-2*linewidth,linewidth,0)
- end
- local doublelinewidth = 2*linewidth
- local info = concat_nodes {
- new_rule(linewidth,ht,dp),
- new_rule(wd-doublelinewidth,-dp+linewidth,dp),
- new_rule(linewidth,ht,dp),
- new_kern(-wd+linewidth),
- new_rule(wd-doublelinewidth,ht,-ht+linewidth),
- new_kern(-wd+doublelinewidth),
- baseline,
- }
- setlistcolor(info,c_glyph)
- setlisttransparency(info,c_glyph_d)
- info = fast_hpack(info)
- info.width = 0
- info.height = 0
- info.depth = 0
- info[a_layer] = l_glyph
- local info = concat_nodes {
- current,
- new_kern(-wd),
- info,
- }
- info = fast_hpack(info)
- info.width = wd
- if next then
- info.next = next
- next.prev = info
- end
- if prev then
- info.prev = prev
- prev.next = info
- end
- if head == current then
- return info, info
- else
- return head, info
- end
- else
- return head, current
- end
-end
-
-local g_cache = { }
-
-local tags = {
- -- userskip = "US",
- lineskip = "LS",
- baselineskip = "BS",
- parskip = "PS",
- abovedisplayskip = "DA",
- belowdisplayskip = "DB",
- abovedisplayshortskip = "SA",
- belowdisplayshortskip = "SB",
- leftskip = "LS",
- rightskip = "RS",
- topskip = "TS",
- splittopskip = "ST",
- tabskip = "AS",
- spaceskip = "SS",
- xspaceskip = "XS",
- parfillskip = "PF",
- thinmuskip = "MS",
- medmuskip = "MM",
- thickmuskip = "ML",
- leaders = "NL",
- cleaders = "CL",
- xleaders = "XL",
- gleaders = "GL",
- -- true = "VS",
- -- false = "HS",
-}
-
-local function ruledglue(head,current,vertical)
- local spec = current.spec
- local width = spec.width
- local subtype = current.subtype
- local amount = formatters["%s:%0.3f"](tags[subtype] or (vertical and "VS") or "HS",width*pt_factor)
- local info = g_cache[amount]
- if info then
- -- print("glue hit")
- else
- if subtype == space_code or subtype == xspace_code then -- not yet all space
- info = sometext(amount,l_glue,c_space)
- elseif subtype == leftskip_code or subtype == rightskip_code then
- info = sometext(amount,l_glue,c_skip_a)
- elseif subtype == userskip_code then
- if width > 0 then
- info = sometext(amount,l_glue,c_positive)
- elseif width < 0 then
- info = sometext(amount,l_glue,c_negative)
- else
- info = sometext(amount,l_glue,c_zero)
- end
- else
- info = sometext(amount,l_glue,c_skip_b)
- end
- g_cache[amount] = info
- end
- info = copy_list(info)
- if vertical then
- info = vpack_nodes(info)
- end
- head, current = insert_node_before(head,current,info)
- return head, current.next
-end
-
-local k_cache = { }
-
-local function ruledkern(head,current,vertical)
- local kern = current.kern
- local info = k_cache[kern]
- if info then
- -- print("kern hit")
- else
- local amount = formatters["%s:%0.3f"](vertical and "VK" or "HK",kern*pt_factor)
- if kern > 0 then
- info = sometext(amount,l_kern,c_positive)
- elseif kern < 0 then
- info = sometext(amount,l_kern,c_negative)
- else
- info = sometext(amount,l_kern,c_zero)
- end
- k_cache[kern] = info
- end
- info = copy_list(info)
- if vertical then
- info = vpack_nodes(info)
- end
- head, current = insert_node_before(head,current,info)
- return head, current.next
-end
-
-local p_cache = { }
-
-local function ruledpenalty(head,current,vertical)
- local penalty = current.penalty
- local info = p_cache[penalty]
- if info then
- -- print("penalty hit")
- else
- local amount = formatters["%s:%s"](vertical and "VP" or "HP",penalty)
- if penalty > 0 then
- info = sometext(amount,l_penalty,c_positive)
- elseif penalty < 0 then
- info = sometext(amount,l_penalty,c_negative)
- else
- info = sometext(amount,l_penalty,c_zero)
- end
- p_cache[penalty] = info
- end
- info = copy_list(info)
- if vertical then
- info = vpack_nodes(info)
- end
- head, current = insert_node_before(head,current,info)
- return head, current.next
-end
-
-local function visualize(head,vertical)
- local trace_hbox = false
- local trace_vbox = false
- local trace_vtop = false
- local trace_kern = false
- local trace_glue = false
- local trace_penalty = false
- local trace_fontkern = false
- local trace_strut = false
- local trace_whatsit = false
- local trace_glyph = false
- local trace_simple = false
- local trace_user = false
- local current = head
- local prev_trace_fontkern = nil
- local attr = unsetvalue
- while current do
- local id = current.id
- local a = current[a_visual] or unsetvalue
- if a ~= attr then
- prev_trace_fontkern = trace_fontkern
- if a == unsetvalue then
- trace_hbox = false
- trace_vbox = false
- trace_vtop = false
- trace_kern = false
- trace_glue = false
- trace_penalty = false
- trace_fontkern = false
- trace_strut = false
- trace_whatsit = false
- trace_glyph = false
- trace_simple = false
- trace_user = false
- else -- dead slow:
- trace_hbox = hasbit(a, 1)
- trace_vbox = hasbit(a, 2)
- trace_vtop = hasbit(a, 4)
- trace_kern = hasbit(a, 8)
- trace_glue = hasbit(a, 16)
- trace_penalty = hasbit(a, 32)
- trace_fontkern = hasbit(a, 64)
- trace_strut = hasbit(a, 128)
- trace_whatsit = hasbit(a, 256)
- trace_glyph = hasbit(a, 512)
- trace_simple = hasbit(a,1024)
- trace_user = hasbit(a,2048)
- end
- attr = a
- end
- if trace_strut then
- current[a_layer] = l_strut
- elseif id == glyph_code then
- if trace_glyph then
- head, current = ruledglyph(head,current)
- end
- elseif id == disc_code then
- if trace_glyph then
- local pre = current.pre
- if pre then
- current.pre = ruledglyph(pre,pre)
- end
- local post = current.post
- if post then
- current.post = ruledglyph(post,post)
- end
- local replace = current.replace
- if replace then
- current.replace = ruledglyph(replace,replace)
- end
- end
- elseif id == kern_code then
- local subtype = current.subtype
- -- tricky ... we don't copy the trace attribute in node-inj (yet)
- if subtype == font_kern_code or current[a_fontkern] then
- if trace_fontkern or prev_trace_fontkern then
- head, current = fontkern(head,current)
- end
- elseif subtype == user_kern_code then
- if trace_kern then
- head, current = ruledkern(head,current,vertical)
- end
- end
- elseif id == glue_code then
- local content = current.leader
- if content then
- current.leader = visualize(content,false)
- elseif trace_glue then
- head, current = ruledglue(head,current,vertical)
- end
- elseif id == penalty_code then
- if trace_penalty then
- head, current = ruledpenalty(head,current,vertical)
- end
- elseif id == disc_code then
- current.pre = visualize(current.pre)
- current.post = visualize(current.post)
- current.replace = visualize(current.replace)
- elseif id == hlist_code then
- local content = current.list
- if content then
- current.list = visualize(content,false)
- end
- if trace_hbox then
- head, current = ruledbox(head,current,false,l_hbox,"H__",trace_simple)
- end
- elseif id == vlist_code then
- local content = current.list
- if content then
- current.list = visualize(content,true)
- end
- if trace_vtop then
- head, current = ruledbox(head,current,true,l_vtop,"_T_",trace_simple)
- elseif trace_vbox then
- head, current = ruledbox(head,current,true,l_vbox,"__V",trace_simple)
- end
- elseif id == whatsit_code then
- if trace_whatsit then
- head, current = whatsit(head,current)
- end
- elseif id == user_code then
- if trace_whatsit then
- head, current = user(head,current)
- end
- end
- current = current.next
- end
- return head
-end
-
-local function freed(cache)
- local n = 0
- for k, v in next, cache do
- free_node_list(v)
- n = n + 1
- end
- if n == 0 then
- return 0, cache
- else
- return n, { }
- end
-end
-
-local function cleanup()
- local hf, ng, np, nk, nw
- nf, f_cache = freed(f_cache)
- ng, g_cache = freed(g_cache)
- np, p_cache = freed(p_cache)
- nk, k_cache = freed(k_cache)
- nw, w_cache = freed(w_cache)
- nb, b_cache = freed(b_cache)
- -- report_visualize("cache: %s fontkerns, %s skips, %s penalties, %s kerns, %s whatsits, %s boxes",nf,ng,np,nk,nw,nb)
-end
-
-function visualizers.handler(head)
- if usedfont then
- starttiming(visualizers)
- -- local l = tex_attribute[a_layer]
- -- local v = tex_attribute[a_visual]
- -- tex_attribute[a_layer] = unsetvalue
- -- tex_attribute[a_visual] = unsetvalue
- head = visualize(head)
- -- tex_attribute[a_layer] = l
- -- tex_attribute[a_visual] = v
- -- -- cleanup()
- stoptiming(visualizers)
- end
- return head, false
-end
-
-function visualizers.box(n)
- tex_box[n].list = visualizers.handler(tex_box[n].list)
-end
-
-local last = nil
-local used = nil
-
-local mark = {
- "trace:1", "trace:2", "trace:3",
- "trace:4", "trace:5", "trace:6",
- "trace:7",
-}
-
-local function markfonts(list)
- for n in traverse_nodes(list) do
- local id = n.id
- if id == glyph_code then
- local font = n.font
- local okay = used[font]
- if not okay then
- last = last + 1
- okay = mark[last]
- used[font] = okay
- end
- setcolor(n,okay)
- elseif id == hlist_code or id == vlist_code then
- markfonts(n.list)
- end
- end
-end
-
-function visualizers.markfonts(list)
- last, used = 0, { }
- markfonts(type(n) == "number" and tex_box[n].list or n)
-end
-
-function commands.markfonts(n)
- visualizers.markfonts(n)
-end
-
-statistics.register("visualization time",function()
- if enabled then
- cleanup() -- in case we don't don't do it each time
- return format("%s seconds",statistics.elapsedtime(visualizers))
- end
-end)
+if not modules then modules = { } end modules ['trac-vis'] = { + version = 1.001, + comment = "companion to trac-vis.mkiv", + author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright = "PRAGMA ADE / ConTeXt Development Team", + license = "see context related readme files" +} + +local string, number, table = string, number, table +local node, nodes, attributes, fonts, tex = node, nodes, attributes, fonts, tex +local type = type +local format = string.format +local formatters = string.formatters + +-- This module started out in the early days of mkiv and luatex with +-- visualizing kerns related to fonts. In the process of cleaning up the +-- visual debugger code it made sense to integrate some other code that +-- I had laying around and replace the old supp-vis debugging code. As +-- only a subset of the old visual debugger makes sense it has become a +-- different implementation. Soms of the m-visual functionality will also +-- be ported. The code is rather trivial. The caching is not really needed +-- but saves upto 50% of the time needed to add visualization. Of course +-- the overall runtime is larger because of color and layer processing in +-- the backend (can be times as much) so the runtime is somewhat larger +-- with full visualization enabled. In practice this will never happen +-- unless one is demoing. + +-- We could use pdf literals and re stream codes but it's not worth the +-- trouble because we would end up in color etc mess. Maybe one day I'll +-- make a nodeinjection variant. + +-- todo: global switch (so no attributes) +-- todo: maybe also xoffset, yoffset of glyph +-- todo: inline concat (more efficient) + +local nodecodes = nodes.nodecodes +local disc_code = nodecodes.disc +local kern_code = nodecodes.kern +local glyph_code = nodecodes.glyph +local disc_code = nodecodes.disc +local hlist_code = nodecodes.hlist +local vlist_code = nodecodes.vlist +local glue_code = nodecodes.glue +local penalty_code = nodecodes.penalty +local whatsit_code = nodecodes.whatsit +local user_code = nodecodes.user +local gluespec_code = nodecodes.gluespec + +local kerncodes = nodes.kerncodes +local font_kern_code = kerncodes.fontkern +local user_kern_code = kerncodes.userkern + +local gluecodes = nodes.gluecodes +local cleaders_code = gluecodes.cleaders +local userskip_code = gluecodes.userskip +local space_code = gluecodes.space +local xspace_code = gluecodes.xspace +local leftskip_code = gluecodes.leftskip +local rightskip_code = gluecodes.rightskip + +local whatsitcodes = nodes.whatsitcodes + +local concat_nodes = nodes.concat +local hpack_nodes = node.hpack +local vpack_nodes = node.vpack +local hpack_string = typesetters.hpack +local fast_hpack_string = typesetters.fast_hpack +local copy_node = node.copy +local copy_list = node.copy_list +local free_node = node.free +local free_node_list = node.flush_list +local insert_node_before = node.insert_before +local insert_node_after = node.insert_after +local fast_hpack = nodes.fasthpack +local traverse_nodes = node.traverse + +local tex_attribute = tex.attribute +local tex_box = tex.box +local unsetvalue = attributes.unsetvalue + +local current_font = font.current + +local exheights = fonts.hashes.exheights +local emwidths = fonts.hashes.emwidths +local pt_factor = number.dimenfactors.pt + +local nodepool = nodes.pool +local new_rule = nodepool.rule +local new_kern = nodepool.kern +local new_glue = nodepool.glue +local new_penalty = nodepool.penalty + +local tracers = nodes.tracers +local visualizers = nodes.visualizers + +local setcolor = tracers.colors.set +local setlistcolor = tracers.colors.setlist +local settransparency = tracers.transparencies.set +local setlisttransparency = tracers.transparencies.setlist + +local starttiming = statistics.starttiming +local stoptiming = statistics.stoptiming + +local a_visual = attributes.private("visual") +local a_fontkern = attributes.private("fontkern") +local a_layer = attributes.private("viewerlayer") + +local hasbit = number.hasbit +local bit = number.bit +local setbit = number.setbit +local clearbit = number.clearbit + +local trace_hbox +local trace_vbox +local trace_vtop +local trace_kern +local trace_glue +local trace_penalty +local trace_fontkern +local trace_strut +local trace_whatsit +local trace_user + +local report_visualize = logs.reporter("visualize") + +local modes = { + hbox = 1, + vbox = 2, + vtop = 4, + kern = 8, + glue = 16, + penalty = 32, + fontkern = 64, + strut = 128, + whatsit = 256, + glyph = 512, + simple = 1024, + simplehbox = 1024 + 1, + simplevbox = 1024 + 2, + simplevtop = 1024 + 4, + user = 2048, +} + +local modes_makeup = { "hbox", "vbox", "kern", "glue", "penalty" } +local modes_boxes = { "hbox", "vbox" } +local modes_all = { "hbox", "vbox", "kern", "glue", "penalty", "fontkern", "whatsit", "glyph", "user" } + +local usedfont, exheight, emwidth +local l_penalty, l_glue, l_kern, l_fontkern, l_hbox, l_vbox, l_vtop, l_strut, l_whatsit, l_glyph, l_user + +local enabled = false +local layers = { } + +local preset_boxes = modes.hbox + modes.vbox +local preset_makeup = preset_boxes + modes.kern + modes.glue + modes.penalty +local preset_all = preset_makeup + modes.fontkern + modes.whatsit + modes.glyph + modes.user + +function visualizers.setfont(id) + usedfont = id or current_font() + exheight = exheights[usedfont] + emwidth = emwidths[usedfont] +end + +-- we can preset a bunch of bits + +local function enable() + if not usedfont then + -- we use a narrow monospaced font + visualizers.setfont(fonts.definers.define { name = "lmmonoltcond10regular", size = tex.sp("4pt") }) + end + for mode, value in next, modes do + local tag = formatters["v_%s"](mode) + attributes.viewerlayers.define { + tag = tag, + title = formatters["visualizer %s"](mode), + visible = "start", + editable = "yes", + printable = "yes" + } + layers[mode] = attributes.viewerlayers.register(tag,true) + end + l_hbox = layers.hbox + l_vbox = layers.vbox + l_vtop = layers.vtop + l_glue = layers.glue + l_kern = layers.kern + l_penalty = layers.penalty + l_fontkern = layers.fontkern + l_strut = layers.strut + l_whatsit = layers.whatsit + l_glyph = layers.glyph + l_user = layers.user + nodes.tasks.enableaction("shipouts","nodes.visualizers.handler") + report_visualize("enabled") + enabled = true + tex.setcount("global","c_syst_visualizers_state",1) -- so that we can optimize at the tex end +end + +local function setvisual(n,a,what) -- this will become more efficient when we have the bit lib linked in + if not n or n == "reset" then + return unsetvalue + elseif n == "makeup" then + if not a or a == 0 or a == unsetvalue then + a = preset_makeup + else + a = setbit(a,preset_makeup) + -- for i=1,#modes_makeup do + -- a = setvisual(modes_makeup[i],a) + -- end + end + elseif n == "boxes" then + if not a or a == 0 or a == unsetvalue then + a = preset_boxes + else + a = setbit(a,preset_boxes) + -- for i=1,#modes_boxes do + -- a = setvisual(modes_boxes[i],a) + -- end + end + elseif n == "all" then + if what == false then + return unsetvalue + elseif not a or a == 0 or a == unsetvalue then + a = preset_all + else + a = setbit(a,preset_all) + -- for i=1,#modes_all do + -- a = setvisual(modes_all[i],a) + -- end + end + else + local m = modes[n] + if not m then + -- go on + elseif a == unsetvalue then + if what == false then + return unsetvalue + else + -- a = setbit(0,m) + a = m + end + elseif what == false then + a = clearbit(a,m) + elseif not a or a == 0 then + a = m + else + a = setbit(a,m) + end + end + if not a or a == 0 or a == unsetvalue then + return unsetvalue + elseif not enabled then -- must happen at runtime (as we don't store layers yet) + enable() + end + return a +end + +function visualizers.setvisual(n) + tex_attribute[a_visual] = setvisual(n,tex_attribute[a_visual]) +end + +function visualizers.setlayer(n) + tex_attribute[a_layer] = layers[n] or unsetvalue +end + +commands.setvisual = visualizers.setvisual +commands.setlayer = visualizers.setlayer + +function commands.visual(n) + context(setvisual(n)) +end + +local function set(mode,v) + tex_attribute[a_visual] = setvisual(mode,tex_attribute[a_visual],v) +end + +for mode, value in next, modes do + trackers.register(formatters["visualizers.%s"](mode), function(v) set(mode,v) end) +end + +trackers.register("visualizers.reset", function(v) set("reset", v) end) +trackers.register("visualizers.all", function(v) set("all", v) end) +trackers.register("visualizers.makeup",function(v) set("makeup",v) end) +trackers.register("visualizers.boxes", function(v) set("boxes", v) end) + +local c_positive = "trace:b" +local c_negative = "trace:r" +local c_zero = "trace:g" +local c_text = "trace:s" +local c_space = "trace:y" +local c_skip_a = "trace:c" +local c_skip_b = "trace:m" +local c_glyph = "trace:o" +local c_white = "trace:w" + +local c_positive_d = "trace:db" +local c_negative_d = "trace:dr" +local c_zero_d = "trace:dg" +local c_text_d = "trace:ds" +local c_space_d = "trace:dy" +local c_skip_a_d = "trace:dc" +local c_skip_b_d = "trace:dm" +local c_glyph_d = "trace:do" +local c_white_d = "trace:dw" + +local function sometext(str,layer,color,textcolor) -- we can just paste verbatim together .. no typesteting needed + local text = fast_hpack_string(str,usedfont) + local size = text.width + local rule = new_rule(size,2*exheight,exheight/2) + local kern = new_kern(-size) + if color then + setcolor(rule,color) + end + if textcolor then + setlistcolor(text.list,textcolor) + end + local info = concat_nodes { + rule, + kern, + text, + } + setlisttransparency(info,c_zero) + info = fast_hpack(info) + if layer then + info[a_layer] = layer + end + local width = info.width + info.width = 0 + info.height = 0 + info.depth = 0 + return info, width +end + +local f_cache = { } + +local function fontkern(head,current) + local kern = current.kern + local info = f_cache[kern] + if info then + -- print("hit fontkern") + else + local text = fast_hpack_string(formatters[" %0.3f"](kern*pt_factor),usedfont) + local rule = new_rule(emwidth/10,6*exheight,2*exheight) + local list = text.list + if kern > 0 then + setlistcolor(list,c_positive_d) + elseif kern < 0 then + setlistcolor(list,c_negative_d) + else + setlistcolor(list,c_zero_d) + end + setlisttransparency(list,c_text_d) + settransparency(rule,c_text_d) + text.shift = -5 * exheight + info = concat_nodes { + rule, + text, + } + info = fast_hpack(info) + info[a_layer] = l_fontkern + info.width = 0 + info.height = 0 + info.depth = 0 + f_cache[kern] = info + end + head = insert_node_before(head,current,copy_list(info)) + return head, current +end + +local w_cache = { } + +local tags = { + open = "FIC", + write = "FIW", + close = "FIC", + special = "SPE", + localpar = "PAR", + dir = "DIR", + pdfliteral = "PDF", + pdfrefobj = "PDF", + pdfrefxform = "PDF", + pdfrefximage = "PDF", + pdfannot = "PDF", + pdfstartlink = "PDF", + pdfendlink = "PDF", + pdfdest = "PDF", + pdfthread = "PDF", + pdfstartthread = "PDF", + pdfendthread = "PDF", + pdfsavepos = "PDF", + pdfthreaddata = "PDF", + pdflinkdata = "PDF", + pdfcolorstack = "PDF", + pdfsetmatrix = "PDF", + pdfsave = "PDF", + pdfrestore = "PDF", + latelua = "LUA", + closelua = "LUA", + cancelboundary = "CBD", + userdefined = "USR", +} + +local function whatsit(head,current) + local what = current.subtype + local info = w_cache[what] + if info then + -- print("hit whatsit") + else + local tag = whatsitcodes[what] + -- maybe different text colors per tag + info = sometext(formatters["W:%s"](tag and tags[tag] or what),usedfont,nil,c_white) + info[a_layer] = l_whatsit + w_cache[what] = info + end + head, current = insert_node_after(head,current,copy_list(info)) + return head, current +end + +local function user(head,current) + local what = current.subtype + local info = w_cache[what] + if info then + -- print("hit user") + else + info = sometext(formatters["U:%s"](what),usedfont) + info[a_layer] = l_user + w_cache[what] = info + end + head, current = insert_node_after(head,current,copy_list(info)) + return head, current +end + +local b_cache = { } + +local function ruledbox(head,current,vertical,layer,what,simple) + local wd = current.width + if wd ~= 0 then + local ht, dp = current.height, current.depth + local next, prev = current.next, current.prev + current.next, current.prev = nil, nil + local linewidth = emwidth/10 + local baseline, baseskip + if dp ~= 0 and ht ~= 0 then + if wd > 20*linewidth then + baseline = b_cache.baseline + if not baseline then + -- due to an optimized leader color/transparency we need to set the glue node in order + -- to trigger this mechanism + local leader = concat_nodes { + new_glue(2*linewidth), -- 2.5 + new_rule(6*linewidth,linewidth,0), -- 5.0 + new_glue(2*linewidth), -- 2.5 + } + -- setlisttransparency(leader,c_text) + leader = fast_hpack(leader) + -- setlisttransparency(leader,c_text) + baseline = new_glue(0) + baseline.leader = leader + baseline.subtype = cleaders_code + baseline.spec.stretch = 65536 + baseline.spec.stretch_order = 2 + setlisttransparency(baseline,c_text) + b_cache.baseline = baseline + end + baseline = copy_list(baseline) + baseline = fast_hpack(baseline,wd-2*linewidth) + -- or new hpack node, set head and also: + -- baseline.width = wd + -- baseline.glue_set = wd/65536 + -- baseline.glue_order = 2 + -- baseline.glue_sign = 1 + baseskip = new_kern(-wd+linewidth) + else + baseline = new_rule(wd-2*linewidth,linewidth,0) + baseskip = new_kern(-wd+2*linewidth) + end + end + local this + if not simple then + this = b_cache[what] + if not this then + local text = fast_hpack_string(what,usedfont) + this = concat_nodes { + new_kern(-text.width), + text, + } + setlisttransparency(this,c_text) + this = fast_hpack(this) + this.width = 0 + this.height = 0 + this.depth = 0 + b_cache[what] = this + end + end + local info = concat_nodes { + this and copy_list(this) or nil, -- this also triggers the right mode (else sometimes no whatits) + new_rule(linewidth,ht,dp), + new_rule(wd-2*linewidth,-dp+linewidth,dp), + new_rule(linewidth,ht,dp), + new_kern(-wd+linewidth), + new_rule(wd-2*linewidth,ht,-ht+linewidth), + baseskip, + baseline, + } + setlisttransparency(info,c_text) + info = fast_hpack(info) + info.width = 0 + info.height = 0 + info.depth = 0 + info[a_layer] = layer + local info = concat_nodes { + current, + new_kern(-wd), + info, + } + info = fast_hpack(info,wd) + if vertical then + info = vpack_nodes(info) + end + if next then + info.next = next + next.prev = info + end + if prev then +if prev.id == gluespec_code then + -- weird, how can this happen, an inline glue-spec +else + info.prev = prev + prev.next = info +end + end + if head == current then + return info, info + else + return head, info + end + else + return head, current + end +end + +local function ruledglyph(head,current) + local wd = current.width + if wd ~= 0 then + local ht, dp = current.height, current.depth + local next, prev = current.next, current.prev + current.next, current.prev = nil, nil + local linewidth = emwidth/20 + local baseline + if dp ~= 0 and ht ~= 0 then + baseline = new_rule(wd-2*linewidth,linewidth,0) + end + local doublelinewidth = 2*linewidth + local info = concat_nodes { + new_rule(linewidth,ht,dp), + new_rule(wd-doublelinewidth,-dp+linewidth,dp), + new_rule(linewidth,ht,dp), + new_kern(-wd+linewidth), + new_rule(wd-doublelinewidth,ht,-ht+linewidth), + new_kern(-wd+doublelinewidth), + baseline, + } + setlistcolor(info,c_glyph) + setlisttransparency(info,c_glyph_d) + info = fast_hpack(info) + info.width = 0 + info.height = 0 + info.depth = 0 + info[a_layer] = l_glyph + local info = concat_nodes { + current, + new_kern(-wd), + info, + } + info = fast_hpack(info) + info.width = wd + if next then + info.next = next + next.prev = info + end + if prev then + info.prev = prev + prev.next = info + end + if head == current then + return info, info + else + return head, info + end + else + return head, current + end +end + +local g_cache = { } + +local tags = { + -- userskip = "US", + lineskip = "LS", + baselineskip = "BS", + parskip = "PS", + abovedisplayskip = "DA", + belowdisplayskip = "DB", + abovedisplayshortskip = "SA", + belowdisplayshortskip = "SB", + leftskip = "LS", + rightskip = "RS", + topskip = "TS", + splittopskip = "ST", + tabskip = "AS", + spaceskip = "SS", + xspaceskip = "XS", + parfillskip = "PF", + thinmuskip = "MS", + medmuskip = "MM", + thickmuskip = "ML", + leaders = "NL", + cleaders = "CL", + xleaders = "XL", + gleaders = "GL", + -- true = "VS", + -- false = "HS", +} + +local function ruledglue(head,current,vertical) + local spec = current.spec + local width = spec.width + local subtype = current.subtype + local amount = formatters["%s:%0.3f"](tags[subtype] or (vertical and "VS") or "HS",width*pt_factor) + local info = g_cache[amount] + if info then + -- print("glue hit") + else + if subtype == space_code or subtype == xspace_code then -- not yet all space + info = sometext(amount,l_glue,c_space) + elseif subtype == leftskip_code or subtype == rightskip_code then + info = sometext(amount,l_glue,c_skip_a) + elseif subtype == userskip_code then + if width > 0 then + info = sometext(amount,l_glue,c_positive) + elseif width < 0 then + info = sometext(amount,l_glue,c_negative) + else + info = sometext(amount,l_glue,c_zero) + end + else + info = sometext(amount,l_glue,c_skip_b) + end + g_cache[amount] = info + end + info = copy_list(info) + if vertical then + info = vpack_nodes(info) + end + head, current = insert_node_before(head,current,info) + return head, current.next +end + +local k_cache = { } + +local function ruledkern(head,current,vertical) + local kern = current.kern + local info = k_cache[kern] + if info then + -- print("kern hit") + else + local amount = formatters["%s:%0.3f"](vertical and "VK" or "HK",kern*pt_factor) + if kern > 0 then + info = sometext(amount,l_kern,c_positive) + elseif kern < 0 then + info = sometext(amount,l_kern,c_negative) + else + info = sometext(amount,l_kern,c_zero) + end + k_cache[kern] = info + end + info = copy_list(info) + if vertical then + info = vpack_nodes(info) + end + head, current = insert_node_before(head,current,info) + return head, current.next +end + +local p_cache = { } + +local function ruledpenalty(head,current,vertical) + local penalty = current.penalty + local info = p_cache[penalty] + if info then + -- print("penalty hit") + else + local amount = formatters["%s:%s"](vertical and "VP" or "HP",penalty) + if penalty > 0 then + info = sometext(amount,l_penalty,c_positive) + elseif penalty < 0 then + info = sometext(amount,l_penalty,c_negative) + else + info = sometext(amount,l_penalty,c_zero) + end + p_cache[penalty] = info + end + info = copy_list(info) + if vertical then + info = vpack_nodes(info) + end + head, current = insert_node_before(head,current,info) + return head, current.next +end + +local function visualize(head,vertical) + local trace_hbox = false + local trace_vbox = false + local trace_vtop = false + local trace_kern = false + local trace_glue = false + local trace_penalty = false + local trace_fontkern = false + local trace_strut = false + local trace_whatsit = false + local trace_glyph = false + local trace_simple = false + local trace_user = false + local current = head + local prev_trace_fontkern = nil + local attr = unsetvalue + while current do + local id = current.id + local a = current[a_visual] or unsetvalue + if a ~= attr then + prev_trace_fontkern = trace_fontkern + if a == unsetvalue then + trace_hbox = false + trace_vbox = false + trace_vtop = false + trace_kern = false + trace_glue = false + trace_penalty = false + trace_fontkern = false + trace_strut = false + trace_whatsit = false + trace_glyph = false + trace_simple = false + trace_user = false + else -- dead slow: + trace_hbox = hasbit(a, 1) + trace_vbox = hasbit(a, 2) + trace_vtop = hasbit(a, 4) + trace_kern = hasbit(a, 8) + trace_glue = hasbit(a, 16) + trace_penalty = hasbit(a, 32) + trace_fontkern = hasbit(a, 64) + trace_strut = hasbit(a, 128) + trace_whatsit = hasbit(a, 256) + trace_glyph = hasbit(a, 512) + trace_simple = hasbit(a,1024) + trace_user = hasbit(a,2048) + end + attr = a + end + if trace_strut then + current[a_layer] = l_strut + elseif id == glyph_code then + if trace_glyph then + head, current = ruledglyph(head,current) + end + elseif id == disc_code then + if trace_glyph then + local pre = current.pre + if pre then + current.pre = ruledglyph(pre,pre) + end + local post = current.post + if post then + current.post = ruledglyph(post,post) + end + local replace = current.replace + if replace then + current.replace = ruledglyph(replace,replace) + end + end + elseif id == kern_code then + local subtype = current.subtype + -- tricky ... we don't copy the trace attribute in node-inj (yet) + if subtype == font_kern_code or current[a_fontkern] then + if trace_fontkern or prev_trace_fontkern then + head, current = fontkern(head,current) + end + elseif subtype == user_kern_code then + if trace_kern then + head, current = ruledkern(head,current,vertical) + end + end + elseif id == glue_code then + local content = current.leader + if content then + current.leader = visualize(content,false) + elseif trace_glue then + head, current = ruledglue(head,current,vertical) + end + elseif id == penalty_code then + if trace_penalty then + head, current = ruledpenalty(head,current,vertical) + end + elseif id == disc_code then + current.pre = visualize(current.pre) + current.post = visualize(current.post) + current.replace = visualize(current.replace) + elseif id == hlist_code then + local content = current.list + if content then + current.list = visualize(content,false) + end + if trace_hbox then + head, current = ruledbox(head,current,false,l_hbox,"H__",trace_simple) + end + elseif id == vlist_code then + local content = current.list + if content then + current.list = visualize(content,true) + end + if trace_vtop then + head, current = ruledbox(head,current,true,l_vtop,"_T_",trace_simple) + elseif trace_vbox then + head, current = ruledbox(head,current,true,l_vbox,"__V",trace_simple) + end + elseif id == whatsit_code then + if trace_whatsit then + head, current = whatsit(head,current) + end + elseif id == user_code then + if trace_whatsit then + head, current = user(head,current) + end + end + current = current.next + end + return head +end + +local function freed(cache) + local n = 0 + for k, v in next, cache do + free_node_list(v) + n = n + 1 + end + if n == 0 then + return 0, cache + else + return n, { } + end +end + +local function cleanup() + local hf, ng, np, nk, nw + nf, f_cache = freed(f_cache) + ng, g_cache = freed(g_cache) + np, p_cache = freed(p_cache) + nk, k_cache = freed(k_cache) + nw, w_cache = freed(w_cache) + nb, b_cache = freed(b_cache) + -- report_visualize("cache: %s fontkerns, %s skips, %s penalties, %s kerns, %s whatsits, %s boxes",nf,ng,np,nk,nw,nb) +end + +function visualizers.handler(head) + if usedfont then + starttiming(visualizers) + -- local l = tex_attribute[a_layer] + -- local v = tex_attribute[a_visual] + -- tex_attribute[a_layer] = unsetvalue + -- tex_attribute[a_visual] = unsetvalue + head = visualize(head) + -- tex_attribute[a_layer] = l + -- tex_attribute[a_visual] = v + -- -- cleanup() + stoptiming(visualizers) + end + return head, false +end + +function visualizers.box(n) + tex_box[n].list = visualizers.handler(tex_box[n].list) +end + +local last = nil +local used = nil + +local mark = { + "trace:1", "trace:2", "trace:3", + "trace:4", "trace:5", "trace:6", + "trace:7", +} + +local function markfonts(list) + for n in traverse_nodes(list) do + local id = n.id + if id == glyph_code then + local font = n.font + local okay = used[font] + if not okay then + last = last + 1 + okay = mark[last] + used[font] = okay + end + setcolor(n,okay) + elseif id == hlist_code or id == vlist_code then + markfonts(n.list) + end + end +end + +function visualizers.markfonts(list) + last, used = 0, { } + markfonts(type(n) == "number" and tex_box[n].list or n) +end + +function commands.markfonts(n) + visualizers.markfonts(n) +end + +statistics.register("visualization time",function() + if enabled then + cleanup() -- in case we don't don't do it each time + return format("%s seconds",statistics.elapsedtime(visualizers)) + end +end) |