LEFT---OFF

This file is for random notes and specific coding tasks that need to be done
to meet various goals. This includes Roadmap items as well as fixing bugs.
List bug tracker number if any.

When an item is satisfied, put it in the DONE section at bottom of file.
With each release, that section is transfered to the DONE file, and edited
down to major items in ../features.md.



--------------bugs: things that do not work like they are already allegedly designed to---------------------


------------ serious bugs to fix right now:

bug: affine transform to SetTransform node, put x at 0,0, destroys cairo transform! unrecoverable!

bug: ShortcutWindow totally messed up. StackFrame issues? fixes when you resize window, missing initial need to layout flag?


bug: severing clone link does some weird things, including crashing
bug: clone tool clones do not have proper bounding box

bug: gegl plugin initialization is getting tons of errors like:
       (laidout:159244): GLib-GObject-WARNING **: 21:50:05.430: Two different plugins tried to register 'GeglOprgbe-save_c'.
	  something about gegl upgrade leaving behind reside from previous version?
bug: gegl nodes, connect sinus to waves and also to displace, freeze!

bug: zoom handles mangle cairo sometimes.. can't reproduce reliably

travis is recompiling on non-master branch pushes, eating up all my minutes, and it shouldn't

crash: color grabbing under Wayland completely crashes with extreme prejudice. something about XGetImage


------------ other bugs:

bug: back to not maximizing properly on default ubuntu. Seems to work fine on every other window manager I've tried.

bug: path curve is terrible approximation at end points

bug: command prompt window cursor often invisible
bug: command prompt window input sometimes unrecoverably locks if cursor not at very end
DONE bug: command prompt window missing Laidout module

Overwrite dialog box and other centering boxes should center over calling window, or current screen if no specified owner

drag off page, space to duplicate, copy is not in limbo!
duplicate does not duplicate clip_path

booklet, use paper group tool, default paper group no longer displays

evince on ubuntu 14.04, pdf export won't load, says Syntax Error... Dictionary key must be a name object

configure should check for libreadline-dev? apparently not pkg-config ready <- half fix of listing in package requirements
  needs to use the new extra_cppflags thing

memory hole in ExportDialog.. open export, cycle through formats, quit
memory hole in reimpose .. reimposed 5 page booklet
memory hole when graphical shell activated
memory hole do laidout -n letter, split a window, then quit. undeleted Objects remain!
DONE memory hole, open up examples/nodes-asciichart.laidout, then quit. 1 object remains
DONE memory hole in calculator
DONE memory hole: start blank, exit. 3 remain!!
DONE memory hole helpwindow -> probably something to do with ShortcutWindow and ShortcutTreeSelector not refcounting as expected
DONE memory hole delaunayinterface
DONE memory hole objectfilters with interface
DONE memory hole ./laidout -n letter then quit
DONE memory hole paper interface, activate tool, lay down one paper, quit, 3 objects remain
DONE memory hole cairo backend (can't duplicate)

"edit imposition", then escape.. removes window, but not the frame!

clones of images scale not like images.. should also snap aspect to start of drag, not when control key pressed

select no doc, select doc, viewport jumps around... it should stay the same area
switch to None document, and units change to unreasonable

shearing or scaling produces null axes occasionally when crossing over opposite edge, borking the display
  --> seems to be only when needing to draw images on close to parallel axes, doesn't seem do it with paths

bug: page progress popup is wrong place, and mouse maps at wrong scale ONLY OCCASIONALLY, hard to reproduce

sometimes crash at insert page before (?? can't duplicate)

saving window positions doesn't take into account window decorations, makes pos slide downward each time
  _NET_FRAME_EXTENTS? _KDE_NET_WM_FRAME_STRUT? how to get before mapping a window?

scribus plugin: if directory of executable script is not writable, it fails!
 -> should find one that is writable
scribus plugin needs a proper dealing with temporary files

object reordering (with home/end) produces outline of unrelated objects on top

cloning, change original, not triggering bbox update in clone

ubuntu maximize window failing (but not on today's debian unstable gnome), resize seems to work now
gnome "application" does one per window, not one per app. this is not a bad thing imnsho, but should be easy to conform to desktop application spec properly
icon needs to be bigger.. is fuzzy on ubuntu alt-tab
DONE App/window icon in window manager not showing..

DONE??? need to implement scale pages to new imposition when reimposing (enable in doc settings dialog)

splitwindow SplitWindow:
create new pane should dup old pane.. currently divide viewport, removes document focus
viewwindow, change to spreadview, change back to view.. Horizontal ruler origin is REALLY off
splitwindow cursors existing in subwindows
create new window, defaults to no doc. should select doc of last pane
headwindow swapping is now REALLY messed up
pane swapping/dropto on maximized, swapping in general...

svg out, EquivalentObject doesn't play nice with defs.. only accessed once.. how to upkeep clones in this case?
    -> when equiv objects are composed of groups, what happens?
svg coord numpoints==0???? numpoints doesn't really serve any purpose other than debugging, but....
svg to coord incomplete: arcs needs testing
memory hole in svg in? test svg import, svg path import must be done
object deleting funky, import svg images, select one, hit delete, doesn't delete!!
svg not exporting images when they are children of other non-group objects

place 3 images, object select, must press delete twice...!?!?!?!

sigimp fail for multiple stacks with no folds!!

make sure all imposition types are available in interpreter

resource impositions not showing description when selected

fold indicator foldprogress just at crossover points incorrectly indicating affected folds


object tool shift-control for rotate does not allow positioning on drag bars

'g' for color sample changes cursor to cancel now, and changes on border cross!!!
Need better mouse shape support

possible modifier-pairing error with multiple mice...

file previewer not updating preview when using arrow keys

shrink image lets you go immeasurably small

stackframe seems to be ignoring window borders on layout


----------------0.098 ROADMAP ITEMS: features and enhancements------------------------
DONE website: Rework download to be easier
website:
  screenshots:
    half the videos are not linking
	need to redo screenshots section for mobile friendliness
	  Color fonts
	  Caption tool
	  Text on path tool
	  Image tool
	  Engraver tool
	  How to make booklets
	  Paths
	  Alignment tool
	  Page range interface
	  paper tiler
	  Color patches
	  Viewport/navigation/window arrangements
	  Gradients
	  Nets
	  Warping
	  Spread editor
	  Node tool
	rename to Tutorials or maybe Media. Inkscape uses "Learn"
	on index should show version and date
for CI, https://github.com/Laidout/laidout-icons.git needs to be updated
update fileformat.txt
  DONE missing Palette/GradientStrip
  DONE missing LineProfile
  DONE missing voronoi
  DONE missing LineStyle
  DONE missing FillStyle
  DONE Path: output problem when name - null - non-null-comment
  DONE incomplete TextOnPath
check laidout.1 when time to release
DONE update splash image at icons/LaidoutSplash.png
update docs to have new release number
update translation base files
update screenshots, sync with features
  some of the old youtube embedding doesn't work any more
update links page
update help page
update quickref.html
update dtpcompare.html
update features.md: sweep LEFT-OFF to DONE, edit major items to features.md
update dev page
  document pull request process on dev.html page, sync with repo readme.md
comment out cairo_debug_reset_static_data before release, since it usually means crash, interferes with pipeout
run through "valgrind --leak-check=full --error-limit=no ./laidout" and fix anything that can be nailed down to laidout
  DONE XIQueryPointer?     buttons->mask  = malloc(buttons->mask_len); needs freeing
test:
  ./laidout ../examples/test-all-objects.laidout
  each export filter (via command line in new script in examples.. ignoring problems in eps)
  each window type: about palette view spread command text
    help: window pane does funky stuff
  test in different window managers
  make some test scripts for command line testing


build: building: build process
  should be able to specify include directories to configure, to work around hacky existence checks
  should be able to specify default icon size as a compile option
  should update faq with details about graphicsmagick, harfbuzz, and gegl versioning
  update configure message about try installing packages.. when fail on gegl, it's not listed

  DONE make a laxkit.pc from laxkit configure
  DONE fix hardcoded /usr/include/cups in laxkit/configure
  DONE laidout ./configure needs to pass on relevant things to laxkit
  DONE in config.log should show actual configure line for easy duplicating
  DONE use that laxkit.pc from Laidout and laxkit examples
  --- 0.099:
  should be able to do out-of-source builds
  make "make uninstall" work, and remove coop from installed position
  remove the lax onamac parts from configure? poorly named, more a bsd issue, not mac
  modernize debian/rules. See Laidout PR #5, https://github.com/Laidout/laxkit/pull/5

packaging:
  update CI: https://github.com/Laidout/laidout/pull/28
  flatpak: https://github.com/Laidout/laidout/issues/11
  packaging woes: update deb/control to have more of the dependencies
  --- 0.099
  debian (get in to main repository)
  snapcraft?
  DONE appimage, see: https://github.com/Laidout/laidout/issues/10

valuewindow:
  bug: When scrollers come on, does not trigger an inset of widgets
  bug: shrink for scroller, scroll to bottom, resize big.. window is still scrolled to bottom!!
  FileValue needs a directory hint.. currently turning red on any change
  ui hints:
    DoubleRectangle      [maxy]
                     [minx]  [maxx]
                         [miny]
    AffineValue:  [xx] [xy] {scale x} {rotation}
                  [yx] [yy] {scale y} {shear}
                  [x0] [y0]
  setvalue
  ValueHash
  rearrange set elements
  delete elements of list
  when you quit, does not remember from open windows

global Laidout settings:
  settings dialog
    need to be able to set external programs
    rearrange dir lists
	rebuild icons
	resource search directories, per resource
	remove old palette_dir thing, it should be wrapped into resources
	need "import settings from..." (but always use hardcoded laidoutrc)
	DONE set uiscale live
  color theme
  icons
  tooltips
  per tool default settings
  thin line width (default 1 pixel, but this is bad for high dpi screens)

graphicsmagick:
  load_image() always loads full, even if ping_only (confirm?)

debug inkscape node extension

have a clickable history of recently edited objects (as seen in Godot!)

text on path textonpath: TextOnPath
  crash: link to parent path crashing
  bug: offset and baseline handles disappeared for large offset values
  bug: bezier length resolution inconsistencies making gaps. need solution with consistent approximation
  bug: visible selected bounds not updating?
  bug: dragging the offest handle sometimes jumps to really bad
  bug: reversing direction should change offset so that text occupies roughly the same place. currently in scrunches up
  bug: sometimes path weights don't recache along with glyph positions
  bug: duplicate isn't always initing the dup properly
  bug: some problem with paths when link_to_parent
  input offset should allow "left", "right" and "center"
  handle to remove from current path, and possibly attach it to some other path
    how to attach to diff path
    how to attach to any path
  move mouse around hover over objects, indicate when you can apply text on an existing path
  envelope:
    bug: change offset on closed path, flips around envelope size
    bug: glyph positioning is wrong: should be position glyphs based on middle of glyph, not start of glyph
    bug: final letter in envelope size is wrong size
    vertical position bad
    horizontal spacing a bit wonky

  when baseline is from_path, should indicate path, not offsetted path
  select font, key up/down scrolls uncomfortably SOMETIMES!!
  dragging size handle with shift|control for precision does not scale properly

  ---0.99:
  mouse click to position caret
  size of offset and baseline widgets is not screen space, should they be?
  cursor behavior and color should match the caption tool
  halignment options for open paths?
  need kern control, with kern handles
  copy and paste text
  should not add new object with special check for blank on interf exit, should cache add point, but only add if new text pressed
  rotation handle: glyphs align with path, or orient absolute, or distort with path flow, or distort with absolute angle
  multiline?
  option to auto expand line

  DONE crash: not loading in correctly? works in debugger, but loads wrong normally
  DONE bug: crash sometimes when click down for new text on path object
  DONE disable control to slide offset and baseline at the same time.. it causes too much chaos by default
  DONE (apparently) bug: convert to path rendering to wrong place and orientation
  DONE bug: baseline options don't work, seem to all use offset path only. 
  DONE should have menu option to reverse direction on path without actually reversing path itself
  DONE bug: when you duplicate, it's linking the path
  DONE (? can't dup anymore) doesn't handle transforms with nested objects properly
  DONE bug: not setting current color when object entered
  DONE bug: color not loading and saving
  DONE how to you actually edit path? ^p.. menu option
  DONE bug: drag voffset shifts the text start?
  DONE bug: drag the baseline handle off to the sides, makes huge bad jumps in value <- restrict to mod only baseline


you can't control unclick selected directories


export/print dialog
  ux: if files needed == 1, then should not error about not being able to export many pages to single file, like with page atlas
  DONE bug: for Singles export with non-single impositions, defaults to paper layout PaperGroup, instead of just encasing the single page.
    DONE pdf
	DONE svg
	DONE scribus
	DONE image
	DONE image gs
	DONE html
	DONE plan
	DONE ppt
	DONE ps
	DONE eps
	DONE page atlas
  bug: bleeds:
    html
	DONE page atlas
  ---0.099---
  what happens about background programs, like opening something in gimp? can't delete temporary files
  when there is a failing mismatch between multifile/multipage, dialog should warn, then resume the dialog, should not exit dialog
  maybe flag whether to export limbo with spreads?
  need proper print dialog.. old ppd cups stuff is deprecated
  export should have a preview of what is actually going out, flip through spreads
  in papergroups with multiple papers and double sided impositions, need to ensure front and back are output properly for printer
  double check: export current appears to be broken
  needs to be ScrolledWindow
  should convert to use ValueWindow when it's ready

  DONE Make export dialog optionally have the to command field:
    DONE [] Send files to command: [ -Print commands- v]
  DONE load/save external tools config
  DONE debug validity check
  DONE after manage commands, list doesn't update from export dialog
  DONE bug: slider popup shouldn't show item if hide_from_Browse
  DONE make print button experimental only?  --> disable until a real print dialog happens
  DONE For now remove print button, as it produces incorrect results. All it does is allow "to command" option, not vital
file filters: filefilters:
  multiple export targets, including per object export settings
  export with custom project files: project export project
    like html gallery, has project config in coop/
    some files templated
    project defined by:
      directory with project files to copy
      export config to create files that go along with copied project files
      template vars to replace in set of copied project files
    export.config
      filter: "Html Gallery",
	  filter_config: { ... },
      copy: ["path/to/f1", "path/to/f2", "**/*.png", { from: "here.txt", to: "to/there.txt" } ],
      templates:
		[
 		  { pass_id: "template1",
			file: "f1.tmpl",
			export_as: "%f###.png",
		    vars: [ { name:"{{FRAME_NUMBER}}", value:"laidout.globals.frame" } ],
			eachspread: true
		  },
		]

  config resource load/save
  need to ensure that when bouncing around filters, Export All sets range properly
  ---0.099:
  would be nice to standardize viewport render/obj-traverse so each exporter doesn't have to implement everything themselves
    like define an iterator to walk over the view
  fix when filtered object has children.. currently skips children
  need createImportConfig/createExportConfig to make ImportConfig/DocumentExportConfig objects from parameters for all filters....
  selecting out should auto select tofile | tofiles, depending on how many spreads selected for out
  export range should optionally allow label not spread indices? labels are only valid for pages.. by name "iii - iv", export preview better?
  perhaps switch export/import objects to new cascading Style as base..
  standardize basic load such that non-laidout files create new document of proper size then import
  todo: electric zine maker export/import?
  When there are errors or warnings in exporting, should be able to have the error log such that
    you can just jump to the offending bit easily. This would also be used for preflight verifiers,
    and maybe also mass edit things, like edit all images..
    - have ViewWindow::JumpToObject(&place, objectid);
  DONE need to preserve last settings per filter, remember full export settings
  DONE open with... on export ? combine with command option, which does basically the same thing.. need to decide about tmp files and unlink them
    DONE export by command needs work, bypasses safeties.. what about multiple files?
    DONE put command export within export_document()
pageatlas: page atlas:
  double check: export current not selecting the proper spread??
  DONE export singles nightlife booklet, everything is small??
  DONE file names should be like exported-01-05.jpg not exported-1-5.jpg
  DONE needs bg color
  DONE basically n-up page out, lrtb
  ---0.099
  should be able to go on a random papergroup, not depend on a doc
equirectangular:
  ---0.099---
  export:
    for flat, choose lat/long/rotation
    for hedron, export projected from hedron
    export lines
  import:
    page clip / object clip
0.099: export textured gltf / Godot based 3d viewer project?
export godot book project
  show animation of book folding up
  book page turner
importdialog ImportDialog import dialog:
  ---0.099---
  be able to choose importer
  should show filename as red if don't know how to import
  import option to preserve broken links
  importing should not spawn new windows
  importing should sort out duplicate names
  would be nice to show preview of what is to be imported
html: htmlgallery: html out htmlout:
  bug: not handling bleeds
  obey object visible
  ---0.099---
  webcomic features:
    parallax
      auto gyrate
      control over parallax point
       autoplay repeating parallax elements
    follow mouse
    video objects as mystery data?
    path follow
    scrolling object: speed direction
    shake
    clip paths
    css 3d transforms
  specify image file name, also preview file name "###-s.png"
  DONE embedded page svg
  DONE implement save and load template vars
  DONE include scrim in coop/html
  DONE figure out template scheme
  DONE standardize save to directory or file, not just assume file
image
  obey object visible
  width, height defaults to 0, which is supposed to autocompute correct w,h from dpi.. check!
  ---0.099---
  export depth map based on metadata z
  export format should be an enum. need to extract possible save formats from Laxkit
  for gs, make sure temp file is removed, should probably locate in user space maybe? or make sure perms set reasonably
  DONE should have color select for background color, which would be alternate way to set full transparent
laidout export:
  ---0.099---
  need a Laidout out! for partial exports, or conversions between nets/papergroup lines/etc
  implement crop
  save option to force path data into svg d style instead of default laidout style
  save option to not output line caches
laidout import:
  ---0.099---
  pops up spurious windows
  maybe option to create new layers, or insert to existing layers?
  option to insert new pages, or merge onto existing pages
  need to center within new margin area, as compared to previous margin area
  partial import of page ranges
  selective import, like blender has:
    import of resources
    import of master pages
    import of limbos
pdf: PDF:
  bug: pdf export lines has outlines in evince?
  bug: export clones adds extra ref in resources section
  bug: text out very broken.. imageout via gs complains about malformed pdf on fonts
  bug: fonts are not doubled up, each text object is exporting its own

  ---0.099---
  export complex engraving is really, really slow. probably all the string reallocation?
  pdf optimize jpg dump, compress image data
  still true? pdf export if a path has null linestyle/fillstyle it buffers until next path drawn
     instead of drawing with some default style
  pdf out needs clone deref.. needs clone deref still?
  graphicsmagick for import? subimage and subrange of image_info passed to ReadImage
  page labels?
  implement crop
  start using podofo instead of custom? higher quality pdf output, pdf input options. https://github.com/podofo/podofo, soon to be built from https://github.com/pdfmm/pdfmm
  DONE obey object visible
Scribus scribus:
  bug: objects are not placed properly on papers
  ---0.099---
  bug: doesn't cope with different paper sizes
  needs better error return: use try/catch
  outputting with settings that result in 0 pages result in scribus crash
  caption as path flips
  implement equivalent object
  caption export centering
  export paths fails on compound paths. scribus has dichotomy Polyline|Polygon
  scribus export should show actual version export
  make sure it works for 1.5.2
  check for updates in file format for 1.5
  export color meshes, for recent versions of Scribus

  page clipping
  import/export color meshes, for recent versions of Scribus
  font size confusion
  import/export linear and radial gradients
  scribus in/out: font sizes, stroke widths
  import should try to apply the Scribus layout correctly, at least for 2 page spreads
  import should do something meaningful with original Scribus page bleed values
  scribus import: need to read page sizes from actual page attributes, as it may well be different than in document attributes
    -> this necessitates revamp of singles to use more than one paper type
  implement crop

  DONE obey object visible (no hidden objects natively)

svg: SVG svgin: svg in:
  in:
    page labels appear to not set on read in
    bug: object opacity (as opposed to fill-opacity or stroke-opacity) not handled
    bug: gradient with no p1,p2 defaults to 0,0. should perhaps be 0,1 
	on reading in svg directly, should short out the filename so no accidental overwriting
    ---0.099---
	should parse sodipodi:nodetypes:
	  c = corner node, s = smooth node, z = symmetric, a = auto smooth 
	  if closed, has 1 more nodetype to define initial previous control handle, and final next
	in units should default to csspoints
    bug: when stroke+fill presentation atts are not under a "style" att, they are ignored
    stroke fill
      bug: old LaidoutIcon renders incorrectly, has stroke fill
    fill/stroke for text
    any clipping
    grid guides
    sometimes path endpoint spikes
    dotted line style
    for new docs, should set rulers to use some reasonable units, from either width="100px", or namedview.document-units

    DONE bug: incorrect page size on import
    DONE locked: sodipodi:insensitive="true"
    DONE obey object visible: style="display:none;..."
      DONE in: update StyleToFillAndStroke() calls to extra and react to display:none
      DONE out
    DONE monkey.doc, export then import:
	  DONE radial gradients not importing
	  DONE not putting in page bounds even though width/height are fine..
	  DONE try to open exported svg, says cannot load with no further explanation
    DONE finish debugging mesh svg 2.0 out/in, svg-mesh-polyfill/testfiles
	 DONE test import, then visual similarity of export
	  DONE conical.svg FAIL! needs check for translatable fill object
	  DONE mesh1x2.svg
	  DONE mesh2.svg
	  DONE mesh2x1.svg
	  DONE mesh_objectbb.svg
	  DONE mesh_opacity.svg
	  DONE mesh.svg
	  DONE mesh_test.svg
	  DONE mesh_transform.svg
	  DONE pepper.svg
	DONE bug: bad colors when style atts occur before path in meshpatch
	DONE unless fill/stroke is specifically given a color, it should be noop
    DONE mesh out
    DONE finish debugging powerstroke out/in
      DONE try actually implementing powerstroke in
      DONE zero width caps not working
    DONE width="512px" is mapping to 7.11111 inches (72 dpi)..
    DONE images with xlink:href need to be read in relative to the svg file, not cwd
    DONE problem with transform sometimes, see icons-tiling.svg
      DONE non-1 scale problem
      DONE seems like children screw up -> problem with x,y in: rotate(angle, x,y)
      DONE "use" transforms not compounding
    DONE text placement and size
    DONE width/height makes scale 0 when after viewBox
    DONE gradient clipping
    DONE gradient filling past minimum definition bounds
    DONE in needs to account for viewBox
    DONE linear gradients
    DONE radial gradients
    DONE in needs to parse "use" elements and other "#" refs
  out:
    needs option to not clip by page, or auto to not clip when single page in spread
    ---0.099---
    special check for paths with a single gradient child
    text linespacing.. unclear how Msize/linespacing maps to svg options
    DONE locked: sodipodi:insensitive="true"

  text:
    multiline
    direction
    spans
    DONE color

  bug: export papers currently not going to correct paper
  ---0.099---
  see conical2.svg mesh test (filling text), need to implement text fill/stroke
  need more comprehensive parenting handling.. how to output object children and also handle fills properly
  test arcs in/out
  text on path without path conversion
  dump_in svg filter to nodes optionally, once those are renderable
  radial: transparent inner circle, patch edges
  DONE need to parse units
---0.099---
plan:
  need an In()
  implement paper rotation for out
ppt (passepartout): DEPRECATE
  implement crop
  implement paper rotation
ps: DEPRECATE
  implement paper rotation
  for plain postscript, there's bitmask, but no transparency. maybe optionally do simulation with dithered bitmask..
    a lot of work for a deprecated format, but could have other uses, like for PDF/X-1a
  paths not filling correctly
  engraver no out, equiv object problem?
  implement crop
eps: DEPRECATE
  implement crop
  export seems to be rather broken
  command line export file name defaults to "output#.eps"
  implement paper rotation
xtg from quark?
idml from indesign?


Singles:
  object bleeds not implemented
  export to pdf has wrong paper sizes with multipage, also not handling page bleed with inkscpae multipage import
  inset should be per paper in papergroup
  revamp to be art board centric, based on random PaperGroup
  what's with the old cached_margin stuff, obsolete now with pagestyles stack?
  DONE need to cache page margins properly for papergroup GetPageMarginOutline()
  PageLayout lines
  PaperLayout, needs to optionally be a different PaperGroup compared to page layout
  implement double sided


Bevel Tool BevelInterface:
  Work on any path, apply to any non-smooth vertex
  Clone corner?
    Apply single bevel to all corners
    Mirror corner x/y or with closest quadrant
	Custom for particular corners
  distance from corner x/y --OR-- % of length to next corner
  programmable custom shapes per corner?

freehand tool:
  should have option to output base weighted path, with custom filter resource to copy onto it
  keep a stack of lines previously made for fake undo by repeated delete? or just implement undo for object added
  path simplification needs to be considerably better
    points 
	particularly weight nodes: making one node per vertex, but those weight points need easing
  needs to account for time and speed
  auto apply line profile
  gradient select: custom or resource
  pressure curve
  mesh outputs should still be Mesh based on path
  ShapeBrush features:
    rotate the brush
	bug: rendering solid block, not just outline
    implement bezier path with ShapeBrush
    output to either line with ShapeBrush, or flattened path
  implement flash-like brush:
    bez outline, subsequent strokes can add to or subtract from previous (complex) paths
	merge with similar colors
	be able to drag around islands
  settings:
    set raw point simplify amount
	colors: stroke/fill/gradient, shapebrush outline color
	speed influence
  DONE numerical input for brush size
  DONE brush_size should be real, not screen units
  DONE need "brush size" controls
  DONE needs to respond to viewport color change

shape brush shapebrush:
  shape brush not being applied on load in
  need to be able to edit shape brushes
  pathi -> save to shape brush should ask for a name
  use shape brush should show previews
  if shape brush has multiple paths, should union sweeps of each path
  when new subpaths are created, they should be assigned current shape brush
  DONE finish implementing min/max along direction
  DONE not saving to file

LineStyle:
  needs a stroke fill option
FillStyle:
  should probably have an "enabled" field? otherwise when you toggle fill, it currently sets fillstyle and function to something you may not want

PathInterface: pathinterface
  click on extrema: add point at | move nearby vertex to this point
  ux: when you drag mouse outside of window, should not draw the green add point hint
  ux: when you first activate with new path, need to refresh where mouse is for green add point hint
  bug: if path doesn't have linestyle in file, later crashes since it does not fill in
  bug: width handle has bit of a hitch when handle near a vertex.. extra temp width node being added?
  bug: seems to be possible to move nodes out of order, only occassionally
  bug: shift click down then up on a point selects then deselects.. control can toggle
  bug: problems for non-bez-controlled corners at endpoint. Also variable offset causes weird connections
  bug: applyoffset, the bez part at joins is messed up when no offset, suspect problem in FlatpointToCoordinate, mismatch with bez join next to sample points

  bug: should not create new control points by pressing cntl, unless there is movement
  bug: delete last weight node, sometimes width is wrong
  bug: make new line with freehand tool, cannot move weight nodes in a rational way
  bug: when you select point with rect select, it does not update the current point

  drag on handle (not point) to resize handle. cntl to scale only it. cntl+shift to rotate it
  when you delete a point, curvertex should go to go to nearest previous
  need an easier way to edit gradient fills, like child tool edit for fill items, auto add filler types
  need simplify option on point delete to adjust control point lengths
  need option for bbox to include line width, not just centerline
  need stroke fill
  need path combine:
    with more than one object selected, turn to path tool, have a multi-object widget that lets you:
      Edit all objects at same time (default) -> box that says [3 objects] click for action menu?
      Combine to single object    (select from menu?)
      Combine and merge endpoints (select from menu?)
      PathBoolean: intersect, union, xor, subtract
	  cross link linestyle or fillstyle
  generators? or just spin off weight node interface and use that as a sub interface for object specific interfaces?
    interfaces for creation of the whole path object.
    separate scan/select/mouse down,up,move, BUT uses the PathInterface weight node display and controls

  DONE remove PathOperator: overly complicated, not much benefit, its theoretical flexibility isn't worth it
  DONE Finish making LineStyle a resource
    DONE load/save
    DONE menu selection
    DONE conversion of current style to resource
    DONE make current resource local
  DONE Finish making FillStyle a resource
    DONE load/save
    DONE menu selection
    DONE conversion of current style to resource
    DONE make current resource local
  DONE horizontal extrema orientation sometimes wrong near other vertical extrema
  DONE Path should probably be anObject
  DONE bug: when you select a palette color, it only goes to foreground
  DONE need numerical entry for all weight node characteristics
  DONE not show every single handle. only ones associated with active vertices
  DONE impliment flip curpoints horizontally or vertically
  DONE need invert selection: ^i for total invert, +^i for invert within current paths?
  DONE offset handle instead of mystery shift press
  DONE shift over endpoint needs add point hint
  DONE shift(?) over segment should allow cutting the segment, draw a big red x? highlight whole segment in red?
  DONE need to show hints for when new points will be placed
  DONE implement open at any point to possibly break into separate subpaths
  DONE need way to turn off selectability of path points (thus leaving only width nodes selectable)
  DONE if background is green or red, hard to see the direction indicator

  ---0.099---
  ux: copy selected to a new object
  ux: select inverse
  weight nodes:
    drag one, but have proportional effect on adjacent widths
  investigate Raph Levien's new curve offset method: https://raphlinus.github.io/curves/2022/09/09/parallel-beziers.html
  that hot new spiro curve from Raph Levien
  boolean ops
  mirror, array, with join (akin to blender modifiers)
  dup path object links the path style, but save and load, it is not linked... need to sort out line/fill style inheritance/linking
  needs input boxes for width nodes
  compound paths, change width only changes one. no way to affect all
  need a way to work on multiple weight nodes:
    shift all
    width multiply all
    set width
  need input boxes for weight node info
  zero tips not working on mesh edit? with import test-engrave.laidout
  debug cache sample point distribution, the interpolator is really bad as is
  powerstroke export requires apply offset.. else weight nodes are all messed up
  clarify export for weighted paths, use outlinecache and areacache as needed, check all filetypes exporters: svg pdf scribus image/ps/eps
  finish implementing joins. need to clarify weight behavior at corner joins
  weight computation is currently done based on even t spacing, but probably should be mapped based on distance
  interfs.cc: weights not being shown unless '_'
  be able to pull points back along path near endpoints

  debug extrapolate
  need to protect against reentrants at corner joins.. makes holes unless nonzero rule, and sometimes sticks out the other side
  sliding around the nodes is really annoying.. should do according to proximity to center line
  inkscape has multiple interpolators, we should too!
  actions to implement:
    need arbitrary cut
    need better apply offset: not simplifying offset path
    need path combine (combine path stacks of multiple PathsData)
    need break apart (make new PathsData from each in paths stack)
    need special break apart to make new PathsData, but preserve totally enclosed paths as intential holes
    need mechanism to be able to add custom path actions to context menu
  implement work on multiple path objects at once
  ApplyTransform() and MatchTransform() should adjust scaling of width nodes?
  custom caps.. define cap to a horizontal line, take endpoints and endpoint tangents, return the cap warped to fit the tangents
  custom dashes, with custom start/end dash caps
  so called vector brushes, that allow sweeping out an area with a whole shape
  need some kind of extrema fill in for angled paths, so it matches sweep of whole segment, not just endpoint sweep lines
  should have shortcut to offset ALL weight nodes, or angle ALL nodes
  how to deal with bbox when using wacky weights?? -> use bbox of outlinecache (or centercache), non-weighted (optional): use flat bbox + linewidth
  need something like path->PointInfo(t, &pp, &vprev_ret, &vnext_ret).. done is GetWeight(t, &width, &offset, &angle)
  per vertex join type?
  linestyles are always output independently, can't currently cascade with current code
  line join round should add extra point for really wide angles to make them more circular

  copy and paste
  maybe control when on vertex will create whichever handle does not exist, control nearest drag point determines which is created
  align nodes -> create temp set of data to pass to AlignInterface?
  transform handles for selected points, including flip
  subdivide, repeat key press restores old segment, then adds 1 more point to num of points from last press
  toggle between add points / select points?

  markers:
    resource drawables with extra "origin" and "direction", maybe stored as properties?
    they need to respond to object color.. marker is a SomeDataRef with filter to respond to obj.marker_color ?
    start, end
    mid
      at specific intervals, or n per line

beznet:
  merge faces
  merge vertices
  build path from selected faces
  net from path
  rect/square/perpendicular-corner relaxation
  implement pathboolean here
  save/load
  curved edges

simplepathinterface:
  indicator animation not working
  would be nice to do zoopy animation for circle when you first hover over point
  bug: cannot set colors
  bug: cannot set object name?!
  bug: cannot press enter to resume editing
  bug: bbox is mpoint bbox, not bezier extent
  holes/subpaths
  make circle green when manual, gray when auto
  snap:
    toggle auto snap (control will reverse)
    auto snap to h and v when holding down control
  debug first point corner issue
  implement quadratic
  implement cubic
  DONE controls are flipped in laidout, but not in default Displayer
  DONE bug: cannot set linewidth

ObjectFilter objectfilters object filter: objectfilterinterface:
  debug merge
  memory hole: going from nodes to filter editor, objects remain on quit
  bug: muting and unmuting many times causing endless loop
  bug: muting is not rendered in node view.. and can't toggle in node view

  DONE bug: object tool up, you can somehow click through to path tool, then crash on escape
  DONE bug: select filter editor tool, does not use currently selected data
  DONE need menu options: Apply filters (currently crashes)
  DONE when jumping between tools, tool icon needs to update
  DONE if mirror plane is node connected, should ask if you want to edit
  DONE clicking the eye should only toggle, not select the node
  DONE bug: 2 mirrors, eye toggle second, apparently no effect until you mess with the other: no PropagateUpdate??
  DONE bug: should auto select correct node when you jump to node view
  DONE bug: won't activate when clicking from node interface
  DONE need way to go from node interface to interactive

  ---0.099:
  menu option: Create filtered copy
  implement unlink if connections locked
  implement X for get rid of filter
  implement easy menu driven adding of filters, with possible rearrange order of filters

  need a way to easily apply one object's filter to another object
  clean up filefilter.h definition to allow explicit declaration of ObjectFilter in DrawableObject
  filter to anchor to other objects, migrate the old anchor stuff to nodes

Perspective perspective:
  map() should be able to map from a different base
  bug: deleting path points makes transformed path faulty on updates sometimes
  perspective interface needs to allow changing pos of in points, not just use bbox
  path transform should transform line widths accurately
  finish debugging update path object without reallocating each time
  optimize the image mapping
  filtering paths needs to detect big distortions and add points, as simply transforming bez points is not enough
  implement transform for:
    vector transform should be through PointCollection for:
      ColorPatchData
      ImagePatchData
      PatchData
      EngraverFillData
      VoronoiData
    Caption (convert to path first)
    text on path (convert to path first)
    ImageData
    Refs and groups of any combination of the above
  DONE bug: chained filter nodes make context wrong, thus bad Refresh

valgrind:
  conditional jump on uninit: strlens in newnstr re attributes.cc 2673, 2192, 2206/1007, 2651
  DONE mismatch free colorbase.cc 298

node editor node interface NodeInterface: nodes: node: interface:
  bug: hangs when alt drag to add reroute, lift up alt before releasing mouse SOMETIMES. UGH!
  ux: control click for pan along connection: too easy to activate control-drag-cut-line. use double click for traverse?
  bug: frame label size should change frame size if label doesn't fit
  bug: memory hole when adding reroute
  ux: add reroute needs tooltip and visual indicator
  ux: add reroutes should visually indicate
  cut connections should highlight, maybe with X, what will be cut
  DONE dragging frame label sizer needs tooltip.
  Ctrl-drag frame label sizer to change all frame label sizes?
  bug: duplicating placing at strange place
  need a way to dissolve reroute or nodes, so we don't break routes
  bug: multiply v*v after node dup, try to enter a single value, weird things happen
  DONE bug: vector display, uses 2e+2 for 200
  bug: new object, "Net" is actually a "NetImposition"
  bug: new LineStyle object node, object info has fields, but no data, lists type as "anObject"
  bug: curve mouse postion is wrong
  bug: file prop popup not working... sometimes?!?
  CRASH: Math.flatvector((a+b)/2, (c+d)/2) .. also default (1,2) producing a set, not a vec2
  bug: red: Lerp
  bug: yellow:
    CSVFile
	ObjectToFile
	BBoxPoint
	DONE Math1 (only on initial add, fine on load in or dup)
	DONE MapFromRange
	DONE MapToRange
  	DONE Invert
  expressions: Math should be imported
  bug: why is captiondata preview render getting triggered every node update?
  bug: work on filter, save nodes, switch to object, load nodes, destroys proper in/out of filter
  SetTransforms if single in, should be single out
  bug: paths should not clip their children by default
  need delete frame.. delete objects not deleting frame if empty
  bug: sporadic, 1st input edit doesn't stick, maybe related to sometimes duplicate is not spawning near original.. not saving last prop?
  bug: reroute nodes doing weird colors
  grouped nodes: need to properly propagate MarkMustUpdate() past container node directly to output props
    check NodeBase::GetStatus() when no outs, but topropproxy
  memory hole page info? drawableinfo, objectinfo
  bug: new object caption, attach to object function, crash!!
  bug: CaptionData is creating a new font every single instantiation
  bug: Need to make text objects have expected preview orientations
  bug: trying to open menu for enum with 0 entries should not pop up a window
  bug: ObjectInfo should reset id and type on disconnection or null object, but keep any props that are connected
  bug: adaptive nodes need to cache previous in and check that rather than just update on connection change, since could change upstream
  bug: load in recovery: should ensure only one connection to input, and only one to exec_out
  bug: transform object is linking, not copying images in an ImageData, need to dup the actual image data
  bug: height of resizable property not saved
  bug: duplicating objectfilter does not transfer values for the most part
  bug: when loading in, need to force update nodes in Resources
  bug: gegl to image, disconnect, it is still updating the image, because LaxImage is linked through
  bug: memory hole TransformAffineNode??
  if a node is in error state, error color overrides the selected highlight.. maybe increase width instead?
  need to figure out safe way to duplicate DrawableObjects that have filters and/or children
  implement objectfilterinterface/nodeinterface interchange with nested node groups
  drop files into FileValue properties?
  drop text/numbers to properties
  drag on vec2 x/y should shift values
  finish testing AddReroutes() and have action call AddReroute()
    shift/control while dragging should flip Cut_Connections with Add_Reroutes

  ---0.099---
  convert to script.. each node should be basically compatible with a function
  would be nice to have a property type PROP_List so you can input "1px,2%,3,4" and have it parse to [1,.02,3,4] automatically
  GetGlobal needs to use a menu
  undo redo
  edit filter nodes for the first time should center nodes in viewport
  would be nice to have a "Collapse unlinked properties" option
  need option to turn off main viewport render while tool up, since sometimes that render takes a long time
  some people are going to want grid snapping
  some people are going to want straight connection lines
  need color/styling of node boxes
  need color/styling of node slots
  need color/styling of node connections
  blender has a multi-input that automatically creates concatenated lists somehow

  DONE NumToString: not setting arrays to proper size when input size changes
  DONE BBoxPoint
  DONE Math1 needs transpose
  DONE CSVFileNode
  DONE JsonFileNode, by adding or by drag and drop
  DONE changing node width (like many image ones you drop in): all by same diff, all to same width
  DONE bug: top filter "out" is outputting data
  DONE ListOf
  DONE bug: JoinSets is not loading/saving properly.. variable list props need unique names
  DONE bug: when in error state, tries again EVERY refresh.. should only try when values change again
  DONE bug: make circle, link set, dup, now node in error state.. copies set?
  DONE MakeSet
  DONE GetElement should be able to access drawable children or dict elements, also either int index or string name
  DONE SetRotations
  DONE SetTransforms
  DONE SetScales
  DONE (can't duplicate) bug: why are nodes yellow sometimes after load in: PerspectiveFilter, PointsToDots, Affine, Affine2.. DONE: String Circle
  DONE bug: ObjectInfo if props connected to outs, change object, bad things happen
  DONE reroute needs click on connection to add (via shift-control)
  DONE bug: control click on connection for pan traversal not working all the way
  DONE bug: duplicate reroute doesn't make a new reroute
  DONE bug: duplicate a caption, goes status 1
  DONE bug: node duplicating, reminder default DOES NOT DUP TYPE!! it dups NodeBase.. double check this is fine, might need to imp duplicate()
  DONE bug: math2 error message not being cleared properly
  DONE bug: empty reroute, click no drag on prop slot, crash!
  DONE bug: expression node broken, won't update expression
    DONE drag value, doesn't trigger update, but click and input does
    DONE if you take away a variable that was connected, bad things happen
  DONE execution order: Update() should ONLY update current.. UpdateRecursively() parse backwards Update()ing as necessary
  DONE bug: TransformAffine using PointSet outputing "out" to file
  DONE bug: memory hole in objectfilter interface
  DONE ConvertNumberNode
  DONE KidsToSetNode
  DONE concat should support sets
  DONE bug: expression auto parse parameters not working when unknowns in paretheses
  DONE need solution for shared interface getting messages for different nodes.. probably need to do one instance per whatever <-(yes)
  DONE bug: say Vector2, edit value, tab to next, does not save previous value
  DONE but: Color node only has output, but outputting data of output nodes currently forbidden.. make exception when output is editable?
  DONE Get document node
  DONE Number list
  DONE bug: color property doesn't show transparency checkerboard
  DONE Switch: variable in list, index element

  need: 
  expand list i..j
  GetFromEach: set in, get specified index from each element of in set, element must be hash, index, or have property with that name
  multi-input revamp:
    ExpandVectorNode
	RectangleNode
	Affine
	Invert
	ConvertNumber
	make new ExpressionEach node to allow process on each element
	ImageNode
	ImageFileNode
	ImageInfo
	RandomNode
	Slice
	Lerp
	TransformAffine
	ModifyObject? ObjectFunction?
	TextFile
	ToFile
	LImageData
	LImageDataInfo
	SetOriginBBox
	RoundedRect
	PointsToDots
	DONE MapRange
  buttons:
    DONE mouse down/up
	greyed out depending on properties
  adaptive text balloons:
    tail point + direction
	tail attach point + direction
	text -> get extent from CaptionData bbox
	target rect to fit in if possible
  data node types:
    how to systematize read only field overrides (like minx,maxx,...), also "const" functions for sanity re duping before ObjectFunction returns
    fit obj in rectangle, with alignment
	EditDrawable: bring up appropriate interface to edit
	Reparent? restrict to particular top object? otherwise you will mess things up terribly
	Perturb: random point/rotation/scale shifting, from rng or sample from NumberField?
	RandomColors,RandomFill,RandomStroke: select from gradient, or array of colors
    anchor nodes (double up with revamped AnchorInterface):
      in anchor: object local space, or parent space
      out anchor: other object point (of non-parent), page, spread
      type: x,y
      2 point anchor: change position + scale|rotation
	DONE create clones: make array of clones
    DONE NewObject/ModifyObject based on an ObjectDef.
    DONE need to make sure all types have dump_out_atts defined, otherwise the paltry Value::dump_out_atts gets used in data out
    DONE each need to double check: dereference, assign, Evaluate, extend from Group, not affine
	DONE LCaptionData from array of text
	DONE   need a "text is escaped" option
    image (double check objdef setup)
      DONE check: dereference assign Evaluate extend from Group, not affine
    somedataref
      DONE check: dereference assign Evaluate extend from Group, not affine
    gradient
	  color list to gradient
	  gradient interpolation type?
      nodes must receive correct color messages from viewport color box
	  needs a little settings button to pop interpolation or do strip resource selection
	  create radial or linear gradient image
	  missing radial/linear flip, color strip fields in NewObject with GradientData
	  DONE(?) bug: gradient controls broken sometimes
      DONE check: dereference assign Evaluate extend from Group, not affine
      DONE double click to call up color box
    delaunay/point set tool: Vector2 + properties
      functions:
        DONE delaunay
        DONE voronoi
		path from points
		  polyline, quartic, cubic, spiro, spiro2, lofi curve
        convex hull
        tsp
        relax (optionally within path)
	    sample relax: each iteration sample image/object for value, use that as a size. push based on it
		conformal relax
		quadrilateralize and relax -> work Net into a full Drawable?
		voronoi region centroid replacement relax: strength, iterations
	  pointset
	    stipple from
		poisson disc
	    create without initial flush to reduce allocations?
		optionally do set of affine?
		set from drawables
		perturb set.. perturb ANY PointCollection
		DONE double time with path generators
		DONE grid, hexgrid, random square, random circle
		DONE apply positions to groups of drawables
      DONE check: dereference assign Evaluate extend from Group, not affine
	  DONE imp property access for VoronoiData
    paths
	  intersections
	  generators:
	    generator is flushing path each time, would be better to overwrite when possible
	    DONE need linewidth, stroke, fill
		DONE squircles
		rounded rect:
		  needs stroke/fill/line width
		  DONE need variant with rounded per corner -> pass in list
		  DONE at all
		stroke should accept color, gradient, or LineStyle.. LineStyle overrides line width
		fill should accept color, gradient, FillStyle.. or other path object?
      weight controls:
	    weight edit: index: width, offset, angle
	    weights set: t[], width[], offset[], angle[]
		present as line profile?

	  DONE path corners: points past a certain angle threshhold
	  DONE path endpoints
	  DONE path extrema

      path ops:
	    apply LineProfile (along s, not t)
	    path morph
	    path from points: linear or smooth
		sample path to points, optionally with transforms. sample at t OR s by step OR by n points OR squishy step
		  SampleAt: t | t[], t is dist
		  SampleInterval:
		  	offset, step, step is dist, fit step
		  SampleN: n times within path, padstart, padend
	    boolean pathops
        project onto heightmap? onto mesh?
        make net then inset
        merge
        simplify
		extrude:
		  bug: when you use another object for the extrude path, no automatic update happens
		  this should probably be a path function
	      needs to check for same tree and transform points before using
        set line profile from resource
        apply weights

	    DONE ClosestPoint(s)
	    DONE path length
        DONE combine
        DONE break apart
      DONE fill and stroke controls (by using ModifyObjectNode)
      DONE check: dereference assign Evaluate extend from Group, not affine
    engraving
      dashes
      spacing
      tracing
      direction
      DONE check: dereference assign Evaluate extend from Group, not affine
    mesh
      color
        DONE check: dereference assign Evaluate extend from Group, not affine
      transform
        DONE check: dereference assign Evaluate extend from Group, not affine
    caption text
	  DONE needs color property
      DONE check: dereference assign Evaluate extend from Group, not affine
    text on a path
      properties
      DONE dereference assign Evaluate extend from Group, not affine
  object/resource management nodes:
    find drawable:
	  from project or doc root, not just from particular drawable?
      siblings
      direct parent
      in whole tree
      other pages?
      DONE child of
      DONE self
      DONE resources?
    DONE SetParent: take list of objs, and just put as kids
    alignment nodes:
      align to page (with page type)
      access to alignment/nup tool config?
      anchor nodes to mostly replace alignment rules
      anchor point transforms
	mirror node
	  merge
	  filter interface icons crunched when interf has small name (like Mirror)
	  filter interface buttons not working
	  edit with filter interface from node view not working
	  crash on exit after filter interface
	boolean pathops node
    "Object Properties".. maybe have a string field with list of desired properties? Array of props that show enum but output value?
    have a dangerous "Object Function" node? needs to dup in, then run function
    ref other object
    clone tool access
    nup tool access
	DONE create clones for further manipulation, like apply point set origins
    DONE inverse affine transform.. also invert number, vector, or quaternion
    DONE rename "Object Info" to "Drawable Info"
    DONE ALL ObjectDef data types need to be installed on startup, or at least when node tool starts up
  group nodes, connect to (new in) or (new out):
    should take names from props.
    doesn't update the parent props
  curve node needs y expand ability
  should probably bring forward any selected
  load/save custom properties needs to preserve name, label, tooltip, types, custom info
  check for double linking
  control drag on slot to reconnect all connections
  duplicate linked nodes needs to preserve connections
  find node:
    by label(done), name, or type
    search node or property name, or data contents
    regex
    stack of last searches
    search in child groups
    find all
  gegl nodes:
    implement GeglPath to pass in to gegl:path
    maybe have gegl node preview gen be in different thread, as they can be quite lengthy
    not responding to curve updates
    reload file, load node out of sync or something, not showing preview after file load in
    need browser buttons on "path" properties of IsSaveNode()s
    need needtoupdate caching or force work on small proxy images.. gegl with big images takes a long time
    scale-size has runaway render for undefined rect
    make sure deleting/rearranging nodes correctly removes gegl connections
    inkscape filter read in, set up as gegl nodes internally
    make sure input/outputs can translate from other data types
    need protection against unknown gegl ops, like when "gpl" is toggled
    some process actions bog everything down like overlay a crop with a non-cropped input.. need a check for unbounded nodes before process
    some nodes define a particular extent, like gradients. preview should detect
    need a gegl <-> Value converter to allow interacting with Get/SetVariableNode
    do something decent with property types: GeglCurve GeglPath. ignore these for now: GeglAudioFragment GeglBuffer GdkPixbuf GeglNode
    DONE Gegl to LaxImage
    DONE LaxImage to Gegl
  svg/inkscape specific filter interface, io passthrough
    inkscape multipage
      multi page inkscape import needs to assign proper pages
	  import new Inkscape margin features
	  pages are defined upside down.. has to scale to viewbox?
	  need to insert pages at load time, and assign objects to proper pages
	  Need to test actual exporting mechanism
    svg color properties are strings, but there should be button for color select
    need full "length" readin, not just floats, ie "100%", "15in"
    feTurbulence->baseFrequency is TWO numbers, not one, need data[] support
    handle child groups
    handle chaining full filter group nodes
    Embossed Leather fails
    Plastify has an orphan feFlood node
    nodes with children, loading in puts the child properties at the end
    DONE bug: says bad svg path string??
  for memory saving, need to determine what is a "final" node, since intermediate nodes can free data, or pass it on
  node browser
    tooltips for operation, not just properties
    in menu, so many nodes, need way to classify favorites, maybe custom arrangements of menu
      progressive search
  need a way to collect custom property types, so they can be added to custom nodes
  for preview resizer, shouldn't have it when preview is too tiny, since then usually you want to move the node, not resize
  save needs to remember file name per loader, plus default file
  no overlap needs to stack siblings as nicely as possible
  image object creation node, tie node output to a custom LaxImage importer (the proof of concept node for 0.097)
  load something already loaded makes dups of everything.. need to check for name collision!!
  extensibility: need easy way to extend functionality, both menu actions and new nodes
  ideally whole node core codebase should not explicitly depend on laidout
  groups
    allow editable labels for input props
    add dummy prop on in/out to hot link data (only from within group)
    linked vs appended node groups, to allow mass changing of particular effects
      GroupRef : NodeGroup, with some sort of relay to actual group internals
    node libraries: nodes as resources
      need to check for cyclic dependency in resources (and disallow)
  auto shift placement on connection
  auto connect when dragging nodes.. needs parsing of compatible properties
  view area things:
    node magnifier for easier browsing when otherwise zoomed way out
    toggle show only selected nodes?
  exec paths
    events for ui tool construction?
    exec tick speed control for debugging
  make sure entire nodes don't go totally offscreen
  deferred update when massive operations, maybe highlight nodes in yellow?
  color code pipes by value type, color: yellow, number: gray, vector: purple
  need better styling.. too much is hardcoded. problems later with high dpi screens
  finish implementing no cycle check: on load in could be a crash magnet currently if constructed with loops

  other node systems:
    examine imgflo for compatibility
      imgflo lets you compile and load new operations on the fly
    css named filter: brightness(1) contrast(67%) saturate(250%) grayscale(0%) invert(0%) hue-rotate(330deg) sepia(40%) blur(0px)
      see https://www.w3.org/TR/filter-effects-1/#grayscaleEquivalent for svg filter equivalents
    gmic nodes
    graphicsmagick nodes
    antiprism nodes
    examine blender for compatibility -> animation node addon seems fuller for general data processing, everything/geometry nodes
    examine godot for compatibility -> does full scripting execution
    examine Natron for compatibility
    examine pure data for compatibility
    examine BespokeSynth for compatibility: https://github.com/awwbees/BespokeSynth
    praxis-live?
    proprietary import like substance, houdini, archimatix, Photo Reactor?
    any crossover with mypaint brushes or krita???

  Viewer/Debug node, resizable
  simplex noise node
  voronoise
  frames
    label/comment font size should be adjustable.. draggable size triangle on right?
    changeable color:
      DONE receive bg color messages from viewport color box
      receive fg color messages from viewport color box (stalled pending impl of fg+bg colorbox in viewerwindow)
    grouping framed objects have complications
    DONE frames need to be moveable
    DONE nodes within frames need to be moveable
    DONE pressing f: any selected objs in any frame, then unframe. Else group selected objects into frame
    DONE drag and drop nodes to insert into frame
    DONE shift-drag to remove from frame
	DONE selecting frame needs to update viewer current color

    bug: wrap sizes are different start up vs move frame
	implement comment
    have visible/togglable comment
	convert frame to panel
  expression node:
    DONE any number of inputs (pulled from expression)
    scriptify nodes
    nodify script
    use PlainText objects.. ScriptNode ?
    edit text externally or in different text editor frame
  string ops:
    printf
  nested node group resources:
    implement NodeBase.proxy to point to a resource NodeGroup, which relays changes
  list nodes
    set range [start,end] = value, optionally linked
    create list  [type, number]
    ScriptForeach in list, create new list with transformed elements
    sort with function
	DONE concat
    DONE subset [start, end], neg nums for from end
    DONE element [index]
  math nodes
    function nodes need a smooth option, not just polyline
    should always be 'using Math'
	need to allow sets of numbers as inputs, output set in that case
  more math:
    interpolate with easing
    select from panel:
      ---two-arg---
      +    -    *    /     %     ^
      <    >    !=   ==
      min  max  avg
      and  or   xor  not   <<    >>

      ---one arg---
      abs  neg  sqrt sgn
      sin  cos  tan  asin  acos  atan
      sinh cosh tanh asinh acosh atanh

  DONE for connecting, drop onto a property at all should link, not just on slot
  DONE foreach thread processor
  DONE need reroute node
  DONE file properties need browser button
  DONE basic path creation nodes, including math function plotting
  DONE resize preview broken
  DONE image from file node
  DONE (using Name) idea seen in anim nodes: collapsing math shows expression as label

0.099: color fonts issue #6 svg otf svg
  freetype ot-svg example: https://freetype.org/freetype2/docs/reference/ft2-svg_fonts.html#ft_svg_documentrec
  see this freetype gsoc 2019 project: https://www.mail-archive.com/freetype-devel@nongnu.org/msg11459.html
  COLR version 1 now supports gradients? does freetype? https://learn.microsoft.com/en-us/typography/opentype/spec/colr


0.099: CharacterInterface characterinterface character selector
  ux: when you move with keys, does not keep within window
  should optionally show what font is used
  should have search for \u2BEF for instance
  paste something like "U+0022" to jump to that code point
  just typing normal characters should jump to that character if possible?
  implement suggestions, like if you start with e, suggest various accented e
  opentype glyph alternates
  DONE should optionally show unicode number
  DONE bug: zoom does incorrect margins.. pads out a lot on left
  DONE implement recent
  DONE needs to remember scaling between instantiation

captioninterface CaptionInterface captiondata CaptionData
  default text size is super small
  bug: bitstream vera sans, "Text" convert to path puts e correct, but screen render puts it out too far. huh??
  DONE bug: handles scan zone not working
  ---0.099---
  should be able access fonts as resources, to preserve links on load/save
  implement proper pdf export
  color fonts: consider native otf:
    Mozilla and Adobe’s svg table, microsoft's colr/cpal, Google’s PNG images (CBDT/CBLC tables), Apple’s PNG images (SBIX table)
    freetype dev branch maybe supports colr/cpal and google's way?
  implement the different layout modes: rtl ttb
  debug for rtl and vertical as returned by hb, or set explicitly with direction
  right to left (figure out how to do with harfbuzz)
  need to do proper coordinate finding for mouseposition when paste into a nested group
  text to path:
    option to do all one path,
    or separate objects per character (or glyph), but clones of a resourced group of glyphs
  need handling when opening a file and the font is not found!!!!!!!  options for substitution
  opentype variations
  select, copy
  for overstretched alignment, bounding box not updating correctly
  should adapt from multiline edit, since it already has cut/paste, selections, and is mostly debugged??
  control-u hack for poweruser unicode character insertion
  toggle for evaluated text? only allow edit on the raw text, run {{expression}} through calcualtor?
  use selected text as sample when popping up font dialog
  lorem ipsum
  markov ipsum
  DONE right click menu options for insert char and select font
  DONE bug: why is a font being created and destroyed each refresh??

Clean up patch/mesh controls: Mesh PatchInterface
  bug: convert path to mesh inserting null patches at each point

  ---0.099---
  bug: rotate/scale single or more control points should move attached controls in smooth mode
  bug: base on path remove/add should try to remember previous weight nodes, scratch only when mod points (not colors) too far off
  bug: should still be able to edit colors while based on path
  need ability to rect select points, like for cone gradient, points on overlapping edge can't be selected
  no ellipse right click options

  DONE circle warp:
    DONE bug: circle: non-circle breaks ellipse scan
    DONE bug: circle: drag center, breaks ellipse scan
    DONE bug: sets "circle" property, but does not output the data to file
    DONE bug: render initially displaying in small rect. changing inner radius gets it to sync

  DONE bug: select whole edge fails when points overlap and select near active
  DONE when color points overlap like with circle warp, have a way to change all coincident color points -> workaround: auto_select_close
  DONE selected nodes should probably be more prominent and colored, just gray disappears, hard to work with
  DONE bug: can't change point types with menu... path is not getting any menu messages
  DONE maybe should not be able to escape off path tool when editing as path, since that breaks path connection
  DONE bug: when edit as path, path is below the mesh, so can't see path
  DONE bug: subdividing is broken beyond 1st subdivide on anything other than outer patches
  DONE bug: selected points, hover over edge, try to drag deselects then moves whole mesh. Should select for hovered and move that
  DONE bug: when on edge, it highlights, but if you are outside of mesh, it will switch to other object
  DONE bug: smooth edit fails along edges
  DONE add new patches should smoothify joins when in smooth edit
  DONE smooth edit not working when more than one square
  DONE just as moving edges, should be able to move any vert column or horizontal row of points
  DONE implement more right button config options to make the settings more discoverable
  DONE smooth edit mode should be default. 

0.099: ImagePatch:
  abstract to be a filter, with optional stand alone object

0.099: ColorPatch / MeshGradient:
  need bicubic color interpolation, as just cairo bilinear is pretty ugly
  need sampling from beneath
  convert from/to linear/radial gradient as possible
  DONE flip colors vertically or horizontally

0.099: PatchData:
  smooth edit needs to adjust for interior point smoothness
  reverse lookup is not very precise: need to warp back and forth ONLY when necessary, as when
    switching to different, non-point-distort mode
  perspective arrangement: approximate transform controls through perspective grid
  maybe have status message say how many points are selected
  need bez path to mesh, and extract bez from mesh
  krita mesh tool has "uv preserving" move edge, yowza!

  edit multi objects in mesh tool.. should be able to move around many nodes?
  rect select nodes
  coons are not really smooth at internal edges? try with engraver, makes corners with current inner interpolation
  tracing infrastructure should be part of base mesh class.. would make easy for color mesh to use

  nudge mode with shift + arrow keys?
  See that lgm talk about "local mod" to do subdivided mesh modifications that reduces control point clutter
  make base path dump_out as Path, not PathsData? make it easier to read file removing the unnecessary??

ellipseinterface:
  bug: start angle snaps with control key but not end angle
  should be able to start a new ellipse from the tool if some distance away from current, and maybe select other ellipses
  bug: click down+up with minimal drag makes zero length handles that we can't move. should not make a really tiny new data, should keep old if any
  incorporate as special mode in path tool so we don't have to duplicate all the weight node interface
  DONE bug: number input does not cancel on non parsing string
  DONE handles need to stand out more
  DONE bug: input box and you change tool, does not abort the box

  ---0.099:
  handles to rotate?
  angle drag lapping should preserve large arc
  del on center cross hair should straighten?

  DONE implement EquivalentObject
  DONE add better support for linestyle and fillstyle
    DONE be able to use resources for them
    DONE set colorbox to stroke+fill
  DONE when ellipse is off axis, handles need to point in correct direction
  DONE option to flip wedge
  DONE bug: drag size movement is not 1:1
  DONE better drag indicators
  DONE bug: double click on ellipse, does not activate controls
  DONE center cross hair should be slanted when shape is slanted
  DONE incorporate to mesh tool
  DONE derive from Value in LEllipseData, needed to make object property i/o work correctly
  DONE bug: inner radius hint not using center
  DONE memory hole
  DONE implement minimal fill:color, stroke:color+width
  DONE should have menu options for wedge and toggle circle
  DONE debug wedge hover
  DONE draw dotted for wedge edge?
  DONE click or drag to/away from origin  on open arc edge to toggle wedge, open, chord
  DONE render with inner bad since drawfocusellipse ignores inner
  DONE drag radii, toggle control, original center point should also be remembered
  DONE angles mess up when foci flip
  DONE snap angles with control
  DONE control drag on x or y should move center, keep opposite
  DONE inner radius
  DONE snap closed if drag start to end near enough (multiple of 2*pi)
  DONE outer, inner, center hover need indicators
  DONE need numerical entry
  DONE implement angles.. bug with bez_ellipse, not spanning start to end properly
  DONE shift, control down up to toggle hover 
  DONE Remove old rect interface stuff, debug basic render and new object creation

roundedrectinterface rrectinterface roundedrectangle:
  need width controls
  control toggling confusing if you lift control just before button. jumps modes and screws up everything
  option to clamp round when dragging
  custom corners: like blender's bevel editor
  click without drag should not add a tiny rect. should need minimum size before adding to tree
  DONE implement EquivalentObject
  DONE bug: getting fill color not working

rectinterface:
  need snap to angle
  controls need: ship to snap drag, control to constrain to ORIGINAL aspect, shift+control? alt? for scale around pivot?
  should be able to snap pivot point to common bbox points
  controls fail for tiny dimensions.. need minimum ui size
  tips for modifier actions
  new drag/scale/rotate behavior:
    anchor point drag should use the new widgets as appropriate
    DONE rotation circle, inner: number +-/absolute,  mid: free rotate,  outer: snap rotate
    DONE scale slide bar, go above or below, allow number input
    DONE drag with shift lock to nearest drag axis
  constrain aspect for corner scale handles should do so from drag start, not moment of mod press
  control-move flip line to snap to horizontal, vertical, 45 deg, or common gravity points
  maybe show flip and 90 deg rotate handles only when mouse outside the selection area?
  anchors:
    need to be able to control click outside box to create? currenty you must click inside, then drag it out
  For objects that appear very small, the drag handles should not be operable.. shift only
  For objects that are really skinny, it is not practical to have the handles be a percentage of the skinny
    part.. should have minimum drag areas?

GroupInterface groupinterface ObjectInterface objectinterface: group: object interface object tool
  select/unselect all
  world / local transforms:
    screen
    world
    object
    object parent
    object parent parent (etc)
  object select, 'a' toggle select or not, select all in current selection area (ie page or layer base)
  
  'm' should be able to move whole groups, means must be in object tool?

  parent options colors don't really make sense
  real menuify the clone options
  need consistent system to coordinate selection changes between any tools or windows that need to be in sync
  viewport should fully utilize Selection::CurrentObject(), keep curobj in sync
  implement move to "Some other page..." when 'm' in groupinterface
  things to allow editing of wrap, inset, clip paths(done), and chains

  DONE hide/unhide
  DONE default hide draggable flip, but have as right click option
  DONE menuify parent options

Reparenting:
  the label hint should have "Parent: ItsId" and "Child:Id"
  need option to select parent from current selected, like Parent to > (list)

ObjectIndicator objectindicator:
  current should be bold
  clicking around in hierarchy should remember children we just clicked from
  need ability to click on object to select that object. Rename only when already selected
  allow drag reparenting
    hover over parents to pop list of alternate children to reparent to
  show (root) at bottom of stack

voronoi Voronoi delaunay Delaunay: point set pointset
  stipple sample:
	pull in the eggbot stippler? results are way better, plus they implement voronoi center relaxing already
    DONE custom radii
  need to be able to cache need to recalc shapes
  bug: coincident points cause weird problems
  be able to control inset shapes
  is double rendering when object is selected
  importing raw points or data without matrix should map so that it all appears on screen
  boundary:
    page
	margin
	draw outline
	snapshot current bbox
	draw area from other object
	box + padding
  color per point:
    color by weight as index into gradient
    auto fill with randomized colors
    sample point color from background?
  merge different voronoi objects
  multiple point select
  separate selection to new object
  convert voronoi or delaunay tris to graph
  less than three points doesn't remap rationally, need to update extra lines to something proper
  DONE should not recalc shapes that we are not viewing
  DONE repeat last generator shortcut
  DONE Number input of random n, grid, hex
  DONE right click
    DONE start new object
	DONE generators
    DONE toggle delaunay lines
    DONE toggle voronoi lines
    DONE toggle points
  DONE implement show_points

overwrite:
  tab/left/right/enter not doing anything. should be able to control with keys

FileDialog filedialog:
  selecting sort dirs first works, but undoing that option doesn't undo the sort
  types for saving, must be included in return message:
    file type id (int), file name label (string), description
  when on recent, going back should just revert to directory view
  click on big image/pdf, takes time to generate preview. click on already selected, regenerates preview
    need a click to generate preview, gen preview in background
  file dialog, single click should not enter directory, double click should do that
  bug: layer on a page won't allow collapse/expand
  bug: sort caseless, other sorts not working
  should be able to click on column header to sort
  focus should start on file line
  ^l should shift focus to file line
  when something is not openable or saveable, buttons should be greyed out
  file dialog needs click on parent dir to jump to the dir, but still be able to easily return to prev dir
  implement icon list selector
  Resizing zaps view to top, should preserve 1st in window
  need laidout only bookmarks file
  edits color style: bg alternating isn't highlighting
  tooltip to show full path of bookmarks
  need drag and drop bookmarking
  when you change directories, it should indicate if it corresponds to a bookmark

  DONE implement option for (or just show) directories first
  DONE bug: saving before asking for overwrite? ..no?
  DONE bug: overwrite not escapable?
  DONE enter on file line: if has dir, change dir, else trigger save
  DONE should probably have a scroll bar

ShortcutWindow2
  bug: area list is missing
  "new action" doesn't work, just adds first action from existing menu

dual monitors: multi monitor multimonitor
  open in same screen as mouse
  when you open a new window, ensure that it is always on screen
  DONE centering windows should center on monitor of originating window
  DONE Menus should respect actual screen borders, not just full virtual screen

high dpi hidpi: uiscale: ui_scale:
  check windows, need ThemeUpdate()/UIScaleChanged()
	image preview label text not scaling, not setting font first?
	ToolTip text seems small sometimes
	ImportImagesDialog: scale is a bit all over.. too big padding especially
	newdoc:
	  PaperSizeWindow has too small LineInputs, also missing caret when too small
	DONE MultiLineEdit
	PromptEdit
	CommandWindow
	DONE LineEdit cursor sometimes disappears, and text does not get displayed at proper place
	SettingsWindow
	  number edit has text off screen?!
    Plugin info window too small
	ShortcutWindow
	  Keyset name missing cursor
	  wrench is too big
	  dnd key definition box not scaling
	  key column incorrect width: "control" cut off
	  tree triangle overlapping header
	  DONE settings wrench is getting cut if button too small
	  DONE upper line squashed
	  DONE bad gap in lower left
	TreeSelector
	  final line is often offscreen, and can't scroll to it
	  toggle trees makes view jump crazily
	CaptionInterface: popup context menu has wrong window bounds
	PathInterface: control for insert point not scaling hint
	filedialog:
	  has ugly spacing
	  File, Path, Mask LineInputs are too small vertically. seems like missing pads
	  in mask LineEdit, the clear "x" is too big
	  DONE no pad in the bookmarks
	  DONE top inputs are scrunched up
	  DONE final ok buttons squashed
	NumSlider arrows hogging the area
	  DONE LineEdit haywire placement, missing cursor
	DONE TabFrame tabs not scaling with ui
	DONE checkbox not circular
	DONE LineInput and LineEdit not aligning baseline again
	DONE Import vector
	DONE Import Images
	DONE ColorSliders hex display too small
    DONE KeyboardWindow
	DONE popup Input box not scaling outer
	DONE PopupMenu
      DONE icons in menus are slightly too small
	  DONE icons not scaling
	DONE MessageBar
	DONE RulerWin
	DONE TabFrame
	DONE PaletteWindow
	DONE IconSlider
	DONE ToolTip
	DONE ObjectIndicator
	DONE overwrite
	DONE reimpose
	DONE export
	DONE import
	DONE Import images
	DONE palette
    DONE newdoc
	DONE fontdialog
	DONE viewport
	DONE color sliders
	DONE error message box
  DONE check interfaces, make sure everything uses ScreenLine,Threshhold,UIScale:
    NetInterface
    DONE singlesInterface
    DONE SignatureInterface
    DONE curvemap
    DONE freehand
    DONE perspective
    DONE simplepath
    DONE textonpath
    DONE align
    DONE-ish nup
    DONE clone
    DONE object
    DONE nodes
    DONE engraver
    DONE ellipse
    DONE character
    DONE caption
    DONE patch
    DONE imagepatch
    DONE colorpatch
    DONE gradient
    DONE image
    DONE path
    DONE voronoi
    DONE spread editor
  thin_line should be theme level so widgets can use it, not just InterfaceManager level
  uiscale option
    passing in 1 is different than having no uiscale, why??? from monitor ppi?
	DONE live ui change from settings window
	  DONE when dragging numslider, mouse delta is local coords, so jerks around a lot
	  DONE rework SquishyBox to use floating point, not ints, for easier, automatic ui change
	DONE should have option to use native icons.. otherwise they render kind of bad. <- LaidoutPrefs::dont_scale_icons
  rebuild icons in app:
    need to install the source svg
    detect if scaled icons make fuzzy and ask to rebuild
	detect if missing icons, ask to build
	icon regen renedering all instead of just the one if only one specified
	bug: running make in src/icons causes window to be created. it shouldn't be activating any actual window
  need in app themeeditor to easily adjust things that are off
  per monitor ui scaling:
    xrandr only gives monitor names like DP-5 DP-0
    xrandr --verbose lists EDID hex block that usually contains monitor model somehow
    auto scale by detected pixel density
  DONE don't hardcode for instance thin as 1
  DONE perhaps respond to GDK_SCALE or QT_SCALE_FACTOR
  DONE supply a "default" ppi? for instance xlib thinks: 94.1467h or 94.0741v of multisync lcd2490wiki2 (specs say 94)

themeeditor:
  layout suddenly all messed up
  DONE extremely excessive recomputing UIScale on window resize
  DONE checkboxes
    DONE circles need to scale
	gaps are too big
  TreeSelector
    not setting proper font for refresh
	treeselector not using scrollers??
	DONE arrows not scaling
  LineInput
    not setting proper font for refresh
    DONE lineinput not propagating escapable
    DONE not syncing baseline of fonts
	DONE LineEdit
	  DONE text not centering
	  DONE Black() is blanking out with old textheight
  MenuButton
    with no text is super small
    DONE popup fonts getting scaled twice
	DONE arrow not scaling
  colors not yet editable
  icon substitution
  optionally allow icon paths relative to saved theme file
  memory hole
  RowFrame not spacing correctly?? -> due to being within ScrolledWindow
  fonts
    font buttons are not wrapping properly
	must allow default font size.. currently each font is using its own size
	in buttons, monospace baseline is way above all the other baselines
  DONE can't change preferred width of widgets
  DONE Button

accessibility:
  allow changing theme from command line, config file, or settings window
  have alternatives whenever a tool expects modifiers + mouse movement
themes:
  option to use different go/don't go colors
  on ThemeUpdated events, things need to account for:
    color styling
    pads
    font size/type
    refreshing icons
  should be able to access theme files/directories, instead of define all in laidoutrc
  should be all cascading, bare minimum font size should be defaultable
      so like a common style is loaded FIRST, then particulars dumped in afterward:
        theme
          windowstyle common
            category common
              ...
  laxkit interface manager interfacemanager:
	  touch threshholds:
		near point: default 5 px ? try to find a real world measure based on monitors?
	  draw point sizes:
		normal bez point, for instance
		hovered size
	  DONE make DraggedThreshhold an InterfaceManager ui scalable setting
  DONE laxprofile not working

laxkit:
  Button: icon should shift slightly when pressed, like text does
  would be nice if Displayer had a "highlight" stroke mode: draw line with FG, draw thicker line with BG
  resources:
    resource names should default to object->Id(). Is Name important? refactor with "label" instead of "Name"?
    should probably go all in on stacks of data, with container pointers to the data.. would help with name collisions
  migrate the Value system to Laxkit
    Value whattypes() should just be the type, rather than c++ class name
  inotify hooks for edit in bg or filesystem lists? linux only. See kqueue for BSD, or FSEvents on Mac
  save dialog should probably ignore clobber safety and allow enter key in edit to be "save". also auto focus file edit on start and on ^l
    if you enter a new location in file edit, first go to that place. else save with that file name
  FileDialog, when you instantiate with particular thing, it should be highlighted and shown in file pane
  need more mechanism so that popup dialogs stay on top of window they are "children" of
  need better indication of focused/not focused
  need to make sure the weird stuff with xim/xim_ic in anXApp::CreateXInputContext() still works after not creating new xim_ics
    need to investigate using ibus
  should revamp the viewport color events to exclusively use Color objects and handle specials
  lists need move semantics
  CheckDirs / check_dirs is confusing
  when resizing viewportwindow and a temp_input window active, make sure it stays on screen?
  instead of _LAX_PLATFORM_MAC, do relevant check with _LAX_ON_NON_GNU instead? currently only place this is necessary is where getline is used
  from laxkit: clear up focus handling which currently REALLY SUCKS especially when dialogs are up
      focus off a dialog, then refocus, must manually set control focus. should store which subwindow
       gets the focus when autofocused.
  should take precautions so that dialogs do not get buried, would need to respond to circulate events
  in laxkit, key and mouse state should already be filtered to only contain laxkit modifiers,
  reserve names for CommandMask (macs), and a few other custom masks for other weird keyboards
  lineedit:
	should reduce where text is draw when x-for-clear is up
    seems to be an occasional redo bug, reinserting in wrong position
    password
    date
    time
	date+time
    DONE bug: not showing the x-for-clear
    DONE dir
  for blend modes, maybe place name conversion in Displayer, in case there are a ton of custom blend modes??
  rowframe/squishybox would be nice to have aspect preserving squishes
  viewport overlays:
    overlays should have flag for under or over viewport tool stack, such as page marker, which should be below tools
    overlays should get first pick of input, BUT if another has a button lock, it shouldn't mouse move update

  DONE Build a single laxkit.a/so instead of a separate liblaxinterfaces.a. separate makes less sense these days
  DONE boxarrange: Pop should probably be Remove, since it's not actually popping
  DONE Scroller, click on scrollbar outside of the drag handle scrolls in the wrong direction
  DONE? building seems to including twice: -I/usr/include/GraphicsMagick
  DONE strmanip is not in Laxkit namespace, wtf!
  DONE ?-can no longer duplicate: having managers as singletons in Laidout seems to make crash on exit.. for some reason manager destructor order matters
  DONE interfs example has memory hole: interfaces are not being destroyed
    DONE shortcutmanager should be singleton
	DONE unitmanager should be singleton
	DONE interfacemanager should be singleton
  DONE dlopen seems to be wiping singletons???? -> making them static in files seems to fix

boxarrange: SquishyBox:
  when metrics are flipped for vertical layout, metrics from AddWin() don't make sense, they are flipped x/y
stackframe:
  implement sticky, so stuck boxes don't have ..., and resizes as a block with boxes stuck to it
  BUG: for vertical, preferred values currently must be flowdir-linedir, NOT ACTUAL w and h, arrrgg!!

railslider: slider:
  line render should allow gradient, or custom render for squiggles
  different styles for dragging?
  right click or ESC to cancel drag
  Line style on opposite sides of the ball be different?
  hover styles

popupmenu:
  bug: incorrect size on popup sometimes

TreeSelector: 
  pad, padg, leading, iwidth should all be em units
  click open jumping current to 0
  option to use markup for labels
  tree display flat option
  makeinwindow() doesn't account for columns
  DONE should have default pad
  DONE? with text colors, mouse over highlight is off (can't dup?!?)
  DONE? not showing alternate gray/white bgs (can't dup?!?)
  DONE left and right need to open and close


if there is an error while saving, the whole file possibly is corrupted. Should probably save to temp, then mv the temp

icons
  if no png icons detected, try to autogenerate
  test how fast, have autogenerate as option on startup

  image batch export: ...wrap this into general Selection export
    id pattern:
      spread/pagestack/0/*/
        0: [A-Z].*
          1: *-s*
            +
    padding: [by grid] [l r t b]
    unit size: .5 in
    output unit size: 24px
    from files:
        - icons.svg
        - icons-tiling.svg
        - lax-icons.svg
        +
    output directory: _____ ...

implement clobber_protection: "%f~", %f is basename, save in same dir as file (clobber file will be clobbered)
  TEST THIS
  saving templates
  save as
  save a copy
  Document::Save

make drag and drop selections work dnd
  implement viewport vector file drop
  implement image file drop to nodes:
    drop text onto specific properties
	gegl file in node
	DONE csv file
	DONE json file
  	DONE LaxImage node
	DONE text file
  dnd to CaptionInterface
  dnd to ImageInterface
  dnd to ImagePatchInterface
  dnd colors somehow? interpret text "#fff" as a color
  drag from lax edits to other places (in and outside app)

  implement proper action querying, like when you press shift, control for copy or replace while dragging.. is it necessary, we always copy?

  DONE bug: seems like errant end of dnd animation after you drop something from nautilus??
  DONE  drop preview remains hanging and won't go away until you stop nautilus
  DONE Initiate dnd
    DONE set up system dnd state
    DONE send regular updates per protocol
    DONE send data per protocol on drop if to other process, or internally if drop on ourself
  DONE accept dnd
    DONE mouse moves around due to ourself or some other process
    DONE window needs to decide whether dropping is ok, and choose which window will take the drop
    DONE handle drop of data
  DONE LineEdit
  DONE implement viewport bitmap image drop
  DONE xlib_dnd->preferred_type not being set?? -> was bad child selection coords
  DONE do proper translation between screen coords and window coords during acceptance query

imageinterface: imagedata:
  actions to scale to proper dpi for destination paper
  grab particular exif info to show in labels?
  would be nice to autocrop to specific portion without explicit clip mask, ie select a sprite in a sprite sheet
  auto resource-ize images to make them reusable more easily?
  DONE 'f' show labels should shadow label, and put it on upper edge
  DONE optionally show pixel size of image

align tool: aligninterface AlignInterface align:
  needs polishing, the lines and indicators get a bit lost
  context menu seems to be the group interface menu
  need way to specify center of rotation per object
  need to make discoverable, not just as key shortcuts
    -> make as standalone tools, now that viewport stores selection?
  endpoints should be oriented triangle, not circles which make it look like path nodes
  explode in normal align
  should be able to scale and rotate a non-line path when not in path mode
  need manual mode.. drag grid marks to position manually... have that option available on others, auto transform to auto
  gap looks ugly.. have indicator highlight path itself, drag that around
  would be VERY handy to be able to recall previous arrangements, so you can partially redo
  final layout options: unoverlap -> possibly snap to path, then spread out on path to not overlap
  extra custom finishing per object?
  reorder on layouts? -> how to handle reorder in gap and unoverlap?
    trace out order path... show with numbers
  drag out path, order of intersection is new object order?
  maybe grid drag control to reorder
  snapping:
    snap to page middle, left, right, top, bottom
    snap to original selection bounds
    snap to first bounds
    snap to last bounds
    snapping to 0/50/100
  number box while dragging, goes away after a second, or click on it to edit
    if inc/dec arrows, have it inc or dec the decimal place cursor is on
  default presets: inkscape crossover

empties:
  need display object to make visible if truly empty.. display object is not exported
  DONE need node just for empty.. remembering NewObject->Group is irritating
  DONE use as targets in, for instance, node alignments

need infrastructure to propagate and save tool settings
Tools should remember their settings
    remember tool settings: double click on tool icon? right click...
    remember tool settings

    figure out which settings need to be remembered, and install as resource.. what happens when diff
     windows are using diff tools? which settings are remembered? have tool styles that are saved, as
     well as the running tool use settings

paperinterface: papergroupinterface papergroup interface
  should be able to snap to spread pages also 
  when reset scale or rotation, preserve relative orientations
  bug: sometimes clicking around when you have custom papergroup in viewport crashes
  options to edit order of papers.. drag indices (front or "back")
  define papergroup, convert papergroup to NetImposition
  need snap to:
    margins
	spread/page borders
    need to be able to edit margins: edit the art box
  need an easy toggle for landscape/portrait
  menu options:
    fit to selection
    fit to page
    fit to spread
    center on selection
    center on page
    center on spread
    orient viewport to paper
  export options:
    meta name
    export settings
      more that one settings per paper
  debug papergroup tool in spread editor
    paperinterface: in spread editor (done), and able to print it out
    in spread editor (done), and be able to print it out

  DONE option to show numeric print dimensions.. with the label? with indicator that it is not 1:1, maybe like show "110%"
  DONE maybebox needs to snap
  DONE if page is too big, need indicator around mouse that we are placing something
  DONE space while dragging should dup boxes
  DONE bug: custom paper size window starts as 0 size window?
  DONE option for "Sync Physical Sizes when scaling"
  DONE bug: dash outline is way out of whack
  DONE drag should not deselect
  DONE paper name should be within boundary
  DONE when scaling should try to preserve relative orientations
  DONE snap to angle
  DONE show paper numbers
  DONE indices should be underlined

  ---0.099
  maybe need to be able to edge drag custom paper to resize, maybe with grid snapping
  when you add gray bars/reg marks, center on paper?
  buff out the paper interface to be the net builder?

  PaperSize/PaperGroup as resource:
    papersize names are not translated. Should they be??
    implement paper favorites:
      be able to nest favorites, item->favorite = "submenu/23", item2->favorite="2", final element is number?
    laidoutrc needs list of custom paper sizes
    need reusable resource [ name ][load][save][dup][delete]
    papergroups:
	  renaming.. resources should default to obj->Id()?
      Load(DONE), save(DONE), add(DONE), delete paper groups..
	  PaperGroup should be a Value
      work out scheme for resource ownership: they can be owned by:

        1.DONE  Document: if no project, save with document by default
        2.DONE  Project:  save in project file
        3.or Global resource: save in ~/.laidout/version/papergroups
            class FileRef
          papergroup->owner=Document, Project, or FileRef

  DONE Use new custom paper size window
  DONE rotate paper shortcut should be around paper center, not origin
  DONE snap other papers to various boxes
  DONE bug: maybebox zooming off on mouse move
  DONE need a paper size editor stand alone window, entering numbers should convert name to custom

new PaperSizeWindow:
  bug: rowframe WrapToExtent() doesn't work
  DONE integrate with:
    DONE signature interface
    DONE singles editor
    DONE newdoc
    DONE paper interface
  DONE from gimp: in either field, input aspect like 1:2 or 16:9 and it autocomputes value

nup:
  bug: not showing highlight on rectangle
  bug: drag rect turns off scale handles until you click down again
  need gap around arrows
  need numerical input
  need gap adjustments
  what is "sized grid" supposed to be doing?? perhaps auto size rect when this?
  doesn't appear to update random target area when you resize area
  implement flowed
  unclump. Lloyds algo? voronoi of points, move original point to centroid
  unoverlap -> define strategy, either shift H, Vert, along v, or shift on axes between objects
  object reorder: drag outline of object to new position (when you enter another object, assume you want to slide to that place
  scale panel should allow control zoom around point
  show flow with numbers and arrows?
  DONE fill in box

calculator/scripting
  bug: string output not escaping things to display correctly
  bug: dump_out_atts should output raw toStr things.. Strings currently return "str" which is output "\"str\""
  bug: run command with BuildIcons, error is not propagating up to cout
  bug: function calls, assigning named parameters, checks for '=', but only single char, fails when it's actually a ==
  bug: for loops broken
  bug: var a if a already exists in current scope should fail. currently just says ok, but keeps old value
  test heavily nested assignments like a.v.x = 5
  showing defined functions should show the code
  showing variables should show name = value and the class def (such as laidout.globals)
  ---0.099:
  set dump_out_atts should do full atts if any subattribute has full atts, else output "set": "{1,2,3}"
  security restrictions?
  need multiple assignment
  debug generic with operators, doesn't seem to be working
  debug operator definitions
  debug using and import... maybe remove using, use import Math.* instead
  error reporting up function calls doesn't say pos/line for each expression
  overloading does not handle parameter mapping per overloaded, it is scanning only the first, and using that
  print string plus any non string should stringify the thing and append to string
  curline not getting incremented properly when there is skipping or looping going on
  allow if statements on single line without curly braces
  inputting lines when open {"( maybe prompt "... " to wait for closure?
  how best to allow created object defs to be referenced as parameter, variable, or set types, it is a mess right now
  destructors
  show overloaded entries

  DONE bug: function a(b,c) = b+c fails, says unknown name b
  DONE bug: number deref: var a={1,2}.. out of bounds not returning cannot deref.. returning "Ok"
  DONE bug: explicit var a=flatvector() fails with unknown name flatvector <- using Vector2 now
  DONE bug: Math.oeuaeou does not produce an error, Math.aoeeou+3 crashes
  DONE do string*int or int*string to duplicate string
  DONE bug: ln(3) -> cannot compute with given values
  DONE bug: var x =0; x^3  -> "cannot compute 0^x"
  DONE implement a PaperSizes object that recognizes all the names, or maybe a set somewhere with all names? -> Paper.SetFromName(str)
  DONE need special Parse(expression, &unknown_names) to assist expression node
  DONE bug: a={a:1,b:2}; a.a  -> crash! ..sometimes.. a.b crash other times
  DONE bug: var a={a:1,b:2}; a["a"]=3 -> cannot assign  like a["b"] = c or a.b = c
  DONE bug: can't remove dict elements
  DONE bug: var a={a:1,b:2}, cannot add to dict, like a.c = 234; a["d"] = 5655

thumbnails:
  generate for laidout files from current view?
  default to ~/.cache/thumbnails or $XDG_CACHE_HOME/thumbnails instead of ~/.thumbnails

image import: ImportImagesDialog
  bug: import all to one page with scale up/scale down doesn't scale properly
  bug: cancel button is white and no mouseover??
  bug: cannot import images directly from recents
  SelectFile should update file/path.. right now only updates filelist
  ---0.099---
  ImageImport dialog: (actually, needs a total redesign) import images importimage
  need thumbnail preview of images in directories
  when you have a filter, should still show directories(?)
  Import image list: default previews
  should have preview for alignment options.. grab destination page to show preview
  auto bookmarks, one for examples, or save as template
  Choose/Review tabbed window
  horizontal stack frame between choose/review and preview window
  fancier path selector
  for preview field, show green or something and change tooltip if preview will get generated
  click on file to preview file, preview to preview preview
  generate image previews progress box...
  autogenerate should do special check for ~/.thumbnails to conform to freedesktop spec size and type...
  importimages-> eps --> they are fit into boxes!! they should maybe be inserted into a stream..
  importimages: remember last settings
  DumpImages within Arrangements? a template of rect regions (2-d guides)?  maybe use custom papergroups?
    would also implement the dump into Limbo
    dump into any chain of objects, this is really the same thing as laying out a stream, maybe merge this?
  a "Place" tool like indesign?? preview images and place by dragging out one by one, as well as optionally into Arrangements

  DONE need drag and drop from system for multi-image import

shortcut dialog: shortcuts: shortcut manager shortcutmanager
  bug: ObjectInterface Duplicate objects has key u0000 ???
  bug: on pulling up window, action list shows current tool, but that is not highlighted in area list
  bug: keyboard display stretched way too much, general window arrangement is really bad
  bug: sort by columns is not sorting by anything rational
  saving keys for first time should default to config directory
  need to be able to delete keys
  layout needs to save
  need mode column, mode based shortcuts have no display capability
  area heads need to have human titles, _("Image Tool") instead of "ImageInterface"
  mode for shortcut check not quite working, such as ' ' with button to duplicate
  need hierarchy overlap features... it is easy to get lost in different zones
  panning f'd up, close but incorrect bounds checking when drag
  needs to make in window for cursor moving
  numberpadmask?
  char names for wacky xf86 codes.. accept 0x*
  implement search
  svg keyboard out
  DONE need ability to add multiple keys for same action

signature editor  Signature editor Signature Editor signatureeditor
  bug: edit imp from viewport, change page number, should it insert pages??
  bug: background colors are wrong now.. supposed to be gray background
  mouse roll on paper size is confusing
  number input for everything
  symmetric trim
  be able to enter final size, and adjust trim to match
  should be able to drag and drop stacks
  making new paper size should try to find matching paper name for a given size
  fold replay should start showing FRONT page of stack, not back. THIS IS A BUG
    if start from whichever, should show inverse of folds to normal as necessary
  scale pages preview needs to use margin area, not page area
  needs indicator of number of groups, show 3/10 for current sheet in little box above stack, allow numerical input

  show margin, trim, binding when not totally folded
  for large page counts, need number entry in stacks
  would be nice to indicate when there is a centerfold of any signature
  mixing different page sizes mixes up the PageLayout at boundaries. alignment should be either always centered, or custom
  after you add stack, the added one should be selected
  must implement dragging around instance blocks...
  helper controls to adjust inset to match up final size for sigs of different size
  indicators for different signature instances when viewing page spreads
  need to be able to designate particular sheets with properties (like color),
    as current insert mechanism assumes folds happen before insert
  tab to cycle through handles for numerical input
  mouse over and drag show numbers on canvas
  export pdf or lo doc template
  implement work and turn, work and tumble interface
  should probably be some kind of tooltip to say shift for fold under.
  binding edge must be same orientation for all stacks and inserts
  need a paper size editor stand alone window, entering numbers should convert name to custom
  paper select should give hints as to whether paper size can hold actual final size
  detect non staplable binding edge, show red rather than green
  test impose-only for all imposition types
  be able to specify single sided.. allows bound accordian foldings?
  implement creep


---------------- 0.099 ROADMAP ITEMS: features and enhancements ------------------------

make a copyright update tool to change years to match git commits:
  git log --date=format:'%Y' laidout.cc|grep '^Date'|grep '[0-9][0-9][0-9][0-9]' -o | uniq | sort | tr '\n' ','| rev | cut -c2- | rev

external tools: external commands:
  need to be able to rearrange order, first in list is default or select one for default
  need access anywhere an object links to a file
  use in image importer
  use to import to objects
  associate (laidout object type) <-> (external editor)

  properties:
    DONE command_name, ie   "lp"
    DONE binary_path        "/usr/bin/lp"
    DONE description        "Print"
    DONE doc_website        "https://somewhere.com/sometime"
	DONE parameters: $f {files} {file} {dirname} {basename}
    DONE function to verify file is executable
    extra config: additional context that may be used for templates?
    glob for expected output files (so that we can import generated images, for instance)
    command structure "command {file} --stuff {extra.stuff} {{laidout.globals.frame}} {extra3}"

  DONE Image editor (gimp, krita)
  DONE plain text editor (gvim, console vim, command, etc)
  DONE figure out a way to standardize verifying that tool exists: command name: search in $PATH, check if executable

layers palette Layers ObjectTree
  export file dialog needs to remember type
  export file dialog needs to update extension when changing type
  need to update tree list, not flush and repopulate which wrecks selection and open/closed
  should have document list at top, showing current doc
  need icons for object types
  hidden/locked objects should grey out contained objects
  visible gray out non-visible
  drag change flags
  selectable flag
  key controls for navigation within menu:
    space/enter toggle open and closed submenu
  move
  filter by:
    type
	name
  rename in place
  implement buttons
    new empty
	move up .. maybe do away with the button, and just implement drag and drop?
	move down
	duplicate
	delete
  copy item path?

object clipping:
  menu should bold the object names.. hard to read as is
  clip path shouldn't have to be a path.. be able to be text, or whatever provides an Area path
  clip-path export: pdf(done), image(done), svg(done), scribus
  page object overlap export: DONE pdf, DONE image, DONE svg, scribus
  generate default clip path for editing from area path or bounding box

Label widget:
  harfbuzzed, fribidi
  abstract to form base of both widgets and CaptionData
  replace all MessageBar with these, to enable copy
  make editable one replace LineEdit/MultiLineEdit


plugin ideas:
  plugin to copy and paste html straight out of the interface, such as what penpot allows
  plugin for easy antiprism import for net creation

python plugin:
  need python implementation of Attribute and class structure in/out to help file importers in other python based environments
  need headless, no-x compile option to allow minimal usage as python plugins for Scribus


plugins:
  need more automatic way to install:
    mechanism for plugin config files
    plugins maybe have plugin.conf resources/
  beef up the config window, to allow toggling plugins.
  plugin config window should list which file corresponds to the plugin
  if there is a plugin conflict, should say which one is actually loaded
  figure out proper de-loading.. have to restart?
  check for already loaded
  think through plugin infrastructure better, and from external perspective
    need to beef out the plugin readme
    usually, a plugin dev downloads an sdk that might just have selected headers, and .so file
    how to specify plugin is built at all
    how to specify plugin is compiled in, or exists as .so
    plugins (c++) vs extensions (scripted)

DrawableObject:
  in general, equivalentobject should probably cache objects?
  bbox and aabb need to build in kids?
  should transplant child to SomeData? would simplify making new objects considerably. or do (parenting shell)-data like blender
  implement blur to simplify processing svg/inkscape files
  DONE implement opacity as inherent property to, for instance, simplify processing svg/inkscape files
  DONE SomeData should derive from DumpUtility

fontmanager:
  object fonts should all be resources, and objects need to be able to read in "resource:..."
  favorites:
    load in 0 or more favorites files, with specific tags, so you can define reusable purpose built sets of fonts
    a fav is a particular configuration of a font, or stack of fonts (for layered fonts)
fontdialog: FontDialog
  bug: select tag, not setting scroller bar size
  list should group by first word? Noto* is sooooooooo many!!!
  bug: wiping search moves screen to 0, but should center on current selection
  search term is duplicated in the tree list
  mouse follow shouldn't select highlight. current font should stay highlighted
  need a way to remember layered fonts, to easily activate and deactivate
    read from standard fonts places, like .config/laidout/(version)/fonts
  favorites: tag and column
  user tags, not just fontmatrix tags, option to update fontmatrix?
  should be able to access list of font favorites, and a user's preferred organization of fonts..
  need to implement load specific file for a font
  settings:
    grouping
      group by first n words
      group by family
    include/exclude tags
    extra font directories
    load/unload custom sets

  font->SetFromFile() should do more fontconfig checking to grab propper file+family+style+size
  FindFont() is faulty, as it only lookes up family/style.. should search by the unique file name
  sometimes family+style is not unique, but has different languages.. should detect this
    use postscriptname: "DroidSansHebrew-Bold" -->  "Droid Sans Hebrew"/"Bold"

  bookman font style names getting chopped off: due to name collision and using psname as reported by fontconfig
    this is unreliable! need to have proper unique font naming
  sample:
    block should be multiline
    if glyphs blank for a font, try to find a sample that has non-empty glyphs
  need support for svg fonts.. useful for pure svg fonts, and opentype svg, see cairo user fonts
  pgup and down doesn't select a reasonable one
  fontconfig directory config options
  should REALLY have a LayerFont head containing the whole list, not a stand alone list which causes too many problems
  figure out why some color fonts are not scanned by fontconfig
  needs line spacing slider
  option to search by spacing, ie monospace, see fontconfig: FC_PROPORTIONAL, FC_DUAL, FC_MONO, FC_CHARCELL
  vague search via fontconfig matching, to find a match for something like a "sans"

  font preview column in list, custom sample
  language coverage search
  select default language/script
  opentype:
    select opentype variations
    glyph substitutions
    save particular otf variation as selectable favorite
    variation presets defined in the font
    color palette info from the font: there can be multiple palettes defined!
  optional common font finishers? like centering, underline, color, highlight, fg/bg, etc

  DONE should be able to pop up a CharacterInterface
  DONE bug: crash on big X on layers
  DONE the ... is added to both lineinput and outside it
  DONE cursor missing in LineEdits
  DONE bug: makeinwindow SOMETIMES not working, select one, puts on bottom line

Find interface: findinterface:
  going through next/prev should say Found (3/16) instead of "Found (1):", and have tooltip
  DONE bug: can't input search?? <- ui scaling issue
  bug: key presses aren't propagating up to viewport?
  bug: FindWindow is not remembering placement
  view type should be: icons, flat list, hierarchy tree list
  iconselector needs: click-select, drag rect to select, shift to add to selection
  iconselector needs to scroll
  ____pattern_____ .* Aa all (is regex, case sensitive)
  Criteria: [dropdown of predefined criteria] [ ___type:"Image", brokenimages, expr:"obj.maxy < context.page.maxy/2"__ ]
  [next] [prev] [all]
  [ 5 found: (found object thumbnail list) ]
  search:
    id desc other-meta
    broken images
    empty groups
    empty text
    by type
    scriptable pre-flighty conditions
    current view only | in current selection | everywhere
  foreach: scriptable action
  sort found by: modtime, name, page, size, type
  iconselector should have force image to particular size option so we could use object preview directly

cairo:
  cairo image save should use importer to do non-file creation?
  cairo render has color problems with gradients
  cairo development is dead? investigate alternatives <- update: not dead, at least 1.18 was late 2023!
  1.18 has COLRv1 support, and ot svg support, and custom font color palette support!!


engraving tool: Engraving  engraver
  bug: trace object opacity is not working for non-image trace objects.. stroke and fill needs mask integration!!
  bug: 'z' zaps mesh, but does not change cache border or point mapping

  cairo render NEEDS VAST IMPROVEMENT.. the clunky xlib approximation was fast, but not transferrable to cairo

  multiobject:
    object lines in group list needs eye per object, affect actual object visibility
    need to enforce resource unique names
    need ability to store overall styles of a patch, not just each individually
    on resource menus, should check mark if current matches a resource??

  orient:
    should adjust all linked
    with test-engrave-trace2.laidout, do the quick adjust, does not preserve width the first time, using old value of thickness?
    option to remember old values while adjusting position, rotation, spacing
     -> when manual tweaking of spacing, need to produce value reference so that future line orienting preserves line thicknesses

  tracing:
    seems to be grabbing spurious tracing values outside of the tracing object, and at borders of trace object
    tracing object, lines abort just inside the image, maybe should just go one off the edge?
    trace object needs flip, at least h and v, not really needing the whole affine thing
    need option to export trace object in same position as the traced lines, so it can be further processed elsewhere
    custom sample of channels
    sharp edge detection in tracing
    snapshot should be for all in selection
    shift-drag (or drag anything not covered by trace object) should drag ANY of the meshes in selection, not just current
    when multi objects, the traceobject is interweaved, based on draw order, only under current object, should be under all?
    make gradient interface work in trace mode

  engraving freehand/path mode:
    freehand not being interpreted correctly: non-equal smooth is adding erroneous extra mesh column
    drawing custom freehand (with width) lines within the mesh area

  mesh path:
    'a' not selecting all in line

  curvemap needs predefined ramp profiles, remember last, load/save (per context?)
    -> options to insert various predefined patterns
    need magnify do dads for easy expanding of countour without having to place each and every node

  direction:
    need accuracy modifiers for dragging controls around
    only when at endpoints, lineprofile not producing smooth results at random spots inside
    should be able to adjust number of sample points to match up well enough for points in lineprofile
    random end point sliders should inc or dec according to which side mouse clicked down on compared to absolute end point
    spiral spacing computation bad when spokes are nearer radial
    save the opensimplex line displacement from line/point randomness, to be used to also adjust a spacing map to preserve value when viewed at a distance
    be able to trigger a reline on load in
    be able to set a 3-d parameter for noise? useful for animated noise
    option for "adjust for spacing", making weight reflect the spacing, either for constant width or trace
    line profiles: (done) linear, circular, radial, spiral?
    be able to edit and create new profiles
    grow
    spiral arm count makes poor resolution
    line generation:
      grow: implement custom line merge and break to preserve spacing across mesh contraction
      grow: edge abutment when generating
      sample point generation should be based on lines per mesh square, not total mesh field
      finish implementing spacing section -> spacing map

  add special group: half offset, perpendicular
  need stroke+fill options?
  need convert to path object ability
  current blockout is not very precise, needs approximation between existing point samples
  fully implement resolution adjustments for auto lines -> needs resolution tool
  single group (not group list) view is too old, doesn't do link circle, and can only select from current object groups.. remove it entirely?
  export doesn't work for: nothing for scribus, eps, ps
  edit brush ramp as symmetric ramp
  resolution tool: click to add between points within brush, control to destroy points in brush
  need merge group

  screen view, need option for Fast|Accurate
  no writability check on exportsnapshot
  allow temp override of linked to adjust only current?
  establish path needs better smoothness assignments
  keys being caught in patch, not in child path
  test: bez cache needs updating when points are moved around
  test: dash cache needs updating when points are moved OR thickness changed
  always brings current object to front (normal refresh in place, and then interface draw on top).. should be very optional, as it blocks out white overlays
  don't warp, move points, then warp, almost always has bad points: PatchData::getPointReverse() is too inaccurate
  undo/redo
  finish implement making the circle lines be closed circles
  need some kind of smooth out: smooth out width, and smooth out path
  hover over mode icons should show text of what you are hovering over (verbose mode?).. hard to remember, annoying to look at status bar otherwise
  should be able to draw a line and have that be a baseline for dash division
  option: either drop out of bounds points, or zap mesh to point bounds
  numsliders should have click on arrows for single increase, and a dismiss x for input box
  should probably abstract control panel creation so we don't have to hardcode everything all the time
  sampling could be more sophisticated, currently just grabs pixels, could downsample the image based on current spacing
  Danger! coons patch produces discontinuous contours within multiblock meshes!! who knew!?
  perhaps allow path objects to be adjusted with engrave tool for custom outlier lines not part of mesh?
  must implement mode based shortcuts in Laxkit. currently all mesh shortcuts are active
  stippling/decal mode, each sample is either a point, or map on an arbitary object, or sampled object?
    per stipple, adjust rotation, scale, color, morph

from big import:
  bug: delete discontinous range of pages doesn't delete all sometimes
  ---0.099---
  thumbs refreshing a lot unnecessarily
  load in seems to wholely load images, instead of only grabbing info
  need some kind of "loading" indication when loading in large images
  load in of many images needs threaded load
  need image path mass reassign
  spread editor:
    need a force thumb refresh, or actually make modified propagation work
    there should be a paper view for previewing purposes
    select all for current marker type
    arrange in rows at current scale not scaling and placing correctly
    crash during thumbnail generation if you delete pages while there are still some to render
    auto-arrange not consistent.. doesn't really respect the screen aspect
  should be able to save from any window
  undo extremely necessary
  for images, need edit image feature, with watch for changes, or "reload image"
  save as should have sample file names: from directory name with ".laidout", incremented from any *.laidout
  large images all being loaded in, need way to ask about creating proxy images. only img info is supposed to be read in until img data is actually needed
  need better ui for selecting templates
  load in autosave should ask if you want to save as the original
  spread editor needs edge dragging
  DONE export directory should default to last loaded file
  DONE selecting ranges

MirrorInterface: LineGuideInterface
  should be able to mirror non-paths: arbitrary objects
  ---0.099:
  merge widget, near and outside p1. show merge distance as max(actual, th/2)
  label editing
  colors
  double click to force p1 or p2 to be under mouse when p1 or p2 way off screen?

pagemarkerinterface:
  option to lock label size to real space? make export contact sheets a little prettier in some cases
  right click option to turn off? sometimes it overrides other interface clicks, mouseovers are confusing

page thumbnail should be rational, ie image should be whole page, not just contents+transform,
     and thumb transform makes image dims to page coords

global resources:
  build use case of setting a global var for current language, then have objects update according to it
  have some way to enable/disable listing various built in resources, like historical imposition types (see below)

need a Revert option

lgm 2019 feedback and ideas:
  path tool:
    hard to see helper graphics, needs haloing
    press space to dup weight node while dragging
  method to fix all broken images at once
    mass image edit, need to remap dirs for old files!!
    option: do just this one, or fix all
    old path: _____     new path: _____
  method to collect all used resources of a doc for distribution
  be able to load old docs
  from here on out, ensure backwards compatibility of files still works (at least loading, saving is stretch goal) 
    enhance mystery data to work with laidout data too?
  some kind of graphicsmagick LoadToMemory bug.. could be only on loading old file, bad config translation?
  out clicking from a dialog should probably destroy that dialog.. too easy to get buried confusedly in windows
  make connecting to online information easy: click to open web browser, xdg-open?
  from talk: diffusion curves, "local mod" mesh manipulation

ViewWindow:
  DONE implement wheel left and right to drag
  maybe drawaxes should show dotted line from origin to bbox?

WATCH OUT for when preview file is OLDER than original file!!

panel editing:
  selecting objects really sucks
  bulk assign meta
  meta edit:
    should allow both name+value for new
  parenting and unparenting really sucks
    options should be:
      Jump to parent --hover to show what is the parent
      Unparent
      Parent under first --hover to show potential parent
      Parent under last --hover to show potential parent

need something like laximages->Save(file, format, native_save_only), in case object doesn't know how to save to that format.. maybe default to something like static ImageLoader::Save

need ability to show "reprocessing.." or "progress.." indicator in different thread to what is actually processing
  must multithread long operations

object content selector menu to more easily flip between tools for object-content-streams-otherSpecials

need a better file preview system
  need to wrap laidout_preview_maker(), which previews EPS with the help of gs

createlaidoutrc() should migrate to a LaidoutPrefs::CreateLaidoutrc(), not a direct LaidoutApp func

remove imlib/"xlib" font, image, and render backends, replace with GraphicsMagick and cairo, keep imlib loader but load to cairo image only
  remove displayer-xlib
  remove fontmanager-xlib

image loaders:
  implement loader priorities
  some way to prioritize image saving

rework ui to be programmable. Perhaps an ui builder

LaxCairoImage:
  make sure image counters are ok, such as in new Crop()

gif flipbooks:
  mod to center trims in sig editor
  need a revert to last save option
  for one offs, need to implement progressive repeat imposing
  auto format partition so final page size has same aspect as image
  sig editor needs number input
gif exporter:
  use graphicsmagick? C example: http://www.graphicsmagick.org/api/api.html
  set custom timing in page properties

Reconfigure text edits. Need something that works in interface land, with harfbuzz, that integrates with lax fontmanager

text (see also src/text/text.txt):
  need options per font on export to: convert to path, subset, embed
  need standard way to have default font, apart from defaultlaxfont, as well as default color/other visual attributes
  global font list, finish implementing uniquinizing font names, need final step of some kind of file name diff
  fontconfig/freetype/fribidi/harfbuzz/libunibreak all over everything?
  interface base for utf8 based editing.. share this with window edits somehow
  maybe fonts should point to their creators to make duplication more reliable if there are more than just default fontmanager
  need support for font substitution
  harfbuzz support
  math mode
  track bookmarks
  inline graphics
  css import/export
  tabs on arbitrary paths
  google font import

common property editor tool:  ..overlay and put editor box in a corner?
  - select a bunch of objects
  - tool determines properties in common:
      name + type
      whether properties are equal
        if not equal provide menu to select from existing to apply to all
  - Provides widgets to change those properties all at once

  maybe other mode, where you can copy certain properties, then apply those to other objects?

large files:
  note that most object dump_out routines now use Attribute intermediary rather that write directly to file.
    if this becomes a problem with large files, need to revert that, or update so less heap thrashing
  page range file refs, so you can make massive docs without the whole thing in memory at once?

Whenever there's a byte read in, like with read_in_whole_file to string, really should do some minimal string validation before using it?

resource manager needs to store unknown objects as Attribute trees, so they can still be preserved
  for future processing. for instance, be able to recover from when a plugin is missing

dataobjects/datafactory should somehow combine with stylemanager.. severe duplication as is:
  Laxkit has:
    ObjectFactory
    ResourceManager
  Laidout has:
    ObjectDef/Value system accessed through global stylemanager
 
need to implement DRAW_Hires for all interfaces that default to preview renders. needed for proper image out
  includes at least image(done), path, engraver

mousemove decorations shouldn't change when an interface absorbs one

raster paint layers, mypaint?
  raster path effects?

newdoc:
  DONE ui placement all messed up now.. ui scale issues?
  open on image should create a new singles with default paper and image centered

Units:
  page units should be adjustible so that node enthusiasts don't have to use inches.. maybe make page layer transforms scale by a units conversion
  need something like Convert(value, units_from, units_to, &error, overrides), where overrides is
    something like: list of [units_id, newscaling], like for temp redefining "Em" or "px"
    maybe UnitManager maintain relative categories:
      font-size
      line-height
      viewport-width
      viewport-height
      viewport-min
      paper-height
      paper-width

pixels units should be set as per document dpi

selecting in viewwindow
  on limbo, and spread/page, papergroup, select  first object it finds
  else
    if curobj, select only siblings of currently selected
    if no curobj, select only children of current context
  if you click on something, then single click again, search for anything else under
  double click group to descend into group
  double click or enter non-group to edit content
  cntl-double click or cntl-enter to descend into non-groups' kids
  currently on selected object, click not on handles:
    C left click drag: scale around mouse
    S+C Left drag: rotate
    Left drag: move object

    C left click: place/remove anchor points

Nudge tool nudgeinterface nudge interface:
  break off from engraver tool, to operate on any PointCollection

build net interface graph

autosave
  start fresh doc, autosaves which may be saving into confusing location. maybe save in config dir?
  autorecover.. -> when an autosave is newer than the file we are opening
  option to choose how many to save near original file, and how to remove old
    [ ] Backup on save to: __%f~__   ___%f#~___ <-- use '#' to signal increment save
            %f=filename, %b=basename (without extension), %e=extension, # for numbered autosave
    [ ] Autosave.
      Time between autosaves:___5_minute__  ...ms millisecond s sec seconds second m minute min hr hour h
      Naming for autosaves: __%f-autosave#____
      Number of different autosaves: ___1___

need option for always write relative links.. now defaults to absolute

file button expansion:
   Collect...          <- gather all refd files into one place. ask to specifically not collect per file
   ----
   Commit (git)        <- ensure file is git tracked.. add if necssary before commit
                             double check that other files refd by this one are tracked in same repo as well?
                          maintain list of what to collect, what to ignore when committing?
   Commit settings...  <- choose or set up repository, how to handle passwords?? libgit?
   Revert...           <- show log, select old

open from template:
  needs to be incorporated in newdoc dialog
  get template list:
    scan all template dirs: ~/.config/laidout/version/templates, or SHAREDIR/templates
    name -- file path -- basic info about file

really thin objects should still be selectable, need to add a slight grab area outside bounding box
should be able to click within selection box to move all and not click right down on one of them

need to implement image cache clearing on low memory, to substitute for cairo not doing it like imlib did

minimum dp size is not small enough

anInterface::PreRefresh(), for instance to get engraver trace object to render below all selected objects

need to clarify what happens when you open and close documents.
  open and close docs always leaves limbos behind
  open already open pops new window
  not sure if it should also record ownership of limbos
    open doc:  limbo->SetResourceOwner(document);
    close doc: if (limbo->ObjectOwner() == doc) limbo->SetResourceOwner(nullptr);
 
color management, ColorManager:
  lcms based
  look into oklab, Godot seems to use it sometimes?

Palettes: palettewindow gradientstrip
  load palette should have a preview: file dialog preview function
  on import/export error, should do toast with the error message
  cur color outline size needs to be customized for hidpi
  really all these export/import things should be modular, not all hardcoded in GradientStrip
  coop:
    swatchbooker sbz   import/DONE-export? A sort of super format from 2010, but people still talk about it in 2023
	DONE krita            import/export        zip files with color profiles
    css              import/DONE-export   just define a bunch of classes?
	DONE gimp             import/export   text based .gpl
	DONE inkscape         import(uses gimp gpl)/export
	DONE scribus          import/export        <SCRIBUSCOLORS>
	export gradient image
	export voronoi palette svg
	export voronoi gradient mesh svg
  DONE bug: when no viewport was previously active, color messages do not update viewport color box
  DONE memory hole: start a new palette, close, objects remain!
  DONE bug: selecting color not going to a reasonable target
  DONE allow transparent colors
  DONE custom palettes: finish implementing editability
  DONE move color with keys
  DONE right click for:
    DONE select palette from resources
	DONE new color
	DONE rename color
    DONE load palette
    DONE save palette
    DONE dup palette
  generate new editable palette:
		generate palette from document objects
		generate palette from selected objects
		sample from random points in image
		sample from dragging line in image
		DONE rainbow

  if height < 2*textheight, then hide name info, or have flag to hide in for inkscape-ish palette display
  be able to drag color with mouse
  have a none color
  transform palette by a gradient? levels/curves?


Gradients: gradientinterface
  ---0.99:
  swatchbooker cool things:
    translations of palette/color names, and other meta, stored with palette
	batch converting
  constrain to x/y/45 dragging end points
  dragging around color points from inside to outside should allow going out of bounds
    DONE linear
    radial
  perhaps split radial and linear gradients to different tools? makes more sense
  tool: drag define gradients ala substance
  tool: sketch define gradient fields ala sketch studio

  do dithering to reduce banding
  color interpolation: render to image, then use that as color source
    linear (current default and only option)
	constant
	auto bez
	curve editor rgba

  gradient data should be able to use resource GradientStrip
    owner: file/user global/system global
    name
    tags
    color strip:
      stops
        position
        r1, r2

colorbox color box:
  Soup up the color box so one can recall previous colors, and/or integration with palette window
    -->delay until proper color implementation in place
  hsv slide, configurable clicks

color slider popup: colorpicker color picker colorsliders
  DONE font too small for hex display
  font size is small when mousing over from ruler.. not being set properly in Refresh()?
  optionally show numbers, click to edit
  color strips for full transparent should show checkers in all strips, not just the alpha strip
  have a "Done"/"Dismiss" button
  be able to choose which color sets are visible
  make color slider box be able to be a pane
  need palette selection tab
  click without dragging select color
  click and drag shifts, but DOES not set value under mouse
  out click on hex edit is picking color
  clicking anywher in the new/old should swap
  show numbers to click on: 255, 65535, float
  toggle sets of sliders: rgb, cmyk, alpha, cielab, hsl
  DONE bug: text is not showing at correct size at first

Colors:
  color picker that previews text?
  convert to using Color objects instead of all ScreenColor:
    gradient
    color patch gradient
    image patch
    caption
    linestyle
    fillstyle
    path
    DONE images (doesn't use color per se)

need a global Laidout method of making unique ids
 -> update in Engraver tool, and object indicator overlay

for purely command line execution, should be able to make a binary totally not X dependent.

externally saved pages, for long documents
  save "page" files? reference from Document?
  and/or save "object" files, with layers in the file, have special DrawableObject flag to save its contents externally

conformal mapping option instead of mesh? see http://benpaulthurstonblog.blogspot.com/2015/12/parameterized-quadratic-conformal.html

command prompt window: command line
  bug: delete at pos 1 deletes space after prompt, then does not allow any input
  option to record/save/load whole session of prompt window
  up/down should traverse history
  control-up/down, break out so you can go anywhere

load document, should load images on display only(done), or create previews in background..

guides:
  snap guides to objects
  snap objects edges to various things
  straigt lines at any angle
  grids
  polar grids

Spread Editor:
  need to make pagelocation ref count pages, or (need to anyway) check all known views for errant page refs after delete pages
  would be nice if apply and reset should be grayed as relevant
  adjust page preview resolution
  after an insert, have temp wheelable number indicator, update on screen?
  need to be able to move empty spreads
  need to remove hidden pages from pagemarker
  debug select spreads with rectangle -> need real box intersect? do we?
  modify page range gui, click on a page label, where ever it might be... select pages in spread editor
  debug spread limbo threads and page groups
    implement render
    debug drag and drop
  create new document from spread view?
  hide should collapse into a single thing so you can arrange more simply, instead of still having to sift through many

animated beacons for anchor points to make them visible

curves:
  curvemap needs predefined ramp profiles, remember last, load/save
  curvemap needs brush ramp mode to show symmetric graph
  clip wrap render to graph rect
  brush ramp edit mode: incompatible with wrap? or just have editor move points symmetrically?

Convert impose-only to be based on feeding it an ExportConfig

clarify how locks, visible, selectable works. base in Laxkit?

standardize new Impositions: convert to new ResourceManager system. each has:
   interface OR window editor
   class type
   default resources
  possible to define other editors for any imposition type

option to select region by intersect, not by corner inclusion...

When importing from an image list file, should be able to say if and when to auto-make previews
    new option in file, should be easy

mystery data enhancement: import as placeholder objects: if convertible to laidout elements, do not actually
                expose them as such. Keep source in external location, current laidout only rearranges.
                  ---> this is same as import as image, but using laidout objects to render them with, not bitmap images
                  ---> this is useful to have a standard object indicator built from laidout objects, but
                         do not let them be editable
when importing, have MysteryData, which has special attributes "@file-pos" which says
 where in the original file the attribute starts:
 MysteryData
   transform/bounds
   title (shown in screen)
   description
   file format the data is from
   attribute style listing of the object? or straight from file
 in: convert file to attributes, or provide method to tailor to an output format (eps, pdf objs, raster image),
         and provide a preview image or object to stand in for the file..

viewport:
  allow multiple, positionable spread views visible on same viewport

resources:
  should have a way to narrow down what resources are saved when you save a single document.. right now, if you
    have multiple docs open, the resources are mixed
  really should have option to separate or merge resources when multiple documents open, rather than always merge?
  textobjects,limbos,papergroups should maybe be able to be stored per document, not just file, project, or temp
    either that, or do away with whole project/document difference, and use only
    projects with their own directory, and documents without their own directory
  should be resources:
    Linestyle
    Fillstyle
    PaperStyle
    DONE Palette
    DONE PaperGroups
    DONE PlainTextObject

when closing a document window, decide whether this removes access to it, or just the view to it

how best to integrate Styles, Attributes, and Values???
various object types:
 Laidout
 Project
 Document
 Page
 Group
  draw objects: Image, ImagePatch, Paths, Path, LinearGradient, RadialGradient, PatchGradient
 PaperGroup
 PaperType
 Imposition: Singles, DSS, Booklet, Signature, Net:Box, Dod, etc...
 ImageImportFilter
 ImportFilter:svg,ppt,sla,ps,eps,odraw
 ExportFilter
-->Styles are Values that can be cascaded from other Styles
   Values by themselves cannot be cascaded
-->C++ classes represent data that can be accessed and modified through:
     onscreen:           compels direct c++ access
     file saved to disk: uses Laxkit::Attribute as intermediary for disk i/o
     interpreter:        parses input using Value objects which have ObjectDefs defined at runtime
   would be advantageous to write a single object def, and output options and documention to each of the 3 targets
 each class:Value potentially has:
  - "internal" variables/funcs that don't correspond to ObjectDef entries which are all "public"
  - scriptable variables/funcs defined in ObjectDef
  these are vaguely compatible, but it is not a 1 to 1 match
     some kind of preprocessor (ugg!!) to convert the header file to object def

pointin should check to visual boundary, not bounding box (? maybe just optionally)

customizable object child relationships to parent, rather than simple transform
  this needs to be reworked to be an object filter instead of special anchor properties

  incorporate gss? https://gss.github.io/
  DONE scale x
  scale y
  scale free
  stretch, proxy displays ok, but after install stretch doesn't work
  shear *** seems to be off from point, need shear protection, produces null axes sometimes
  DONE scale
  DONE rotate
  DONE scale+rotate
  DONE move

  add page target anchor
  add parent target anchor
  add object anchor
  margin area not working
  implement rules list click remove
  implement click rule, update display, watch for offset
  anchor names should not have quotes in them, because disk i/o is easier and I'm lazy
  problems when anchors are on a page that is not at origin?
  check for only align objects that are on pages
  margin area anchors not staying when margins change
  transform relative to alignment point of parent (50,50) for center, for instance
  code
  edge magnet
  when trying to move an anchor when you still need to select invariants, flash the invariants
  need edge indicators for more convenient snapping

privacy/security gotchas to watch out for:
  autolaidoutrc with export settings can potentially save user data in templatevars..
    maybe have special project/autolaidoutrc to save such things?
  file system access in scripts?

gshell:
    needs massive testing
    type "tool." (for instance), you can highlight choice with mouse, but does not insert into edit, only inserts when nothing had been typed
    *** not getting options for all tool and object!!
    searching seems to be messed up, improper matches when mid stream
    mid stream search is messing up match names
    completion should be worked into the edit.. "object.|" then tab is replacing all text with field name
    when in function, search among parameter names also
    need to search for context names before searching for calculator names
    search within area, not total tree
    text delete to nothing should only show the top areas in search results
    thoroughly test object access
    object.translate((1,0)) -> MapParameters should map the flatvector to p, not to x
    shift up/down for showing completion
    reposition cursor to error
    for parameters, facility for special edit dodads

custom tools:
  scripted
  normal tools, but jump to special settings for those tools..

implement marks
  bleed marks
  color bars from a palette
  spread info: spread type, current date and time, creator, spread number/total number of spreads

dynamic objects (generated images, dynamic images, rendered images)
    eps objects to pdf: export as image, plant in PDF as image
    group objects with laidout elements, updateable with script
    image objects using ImageImportFilters
    perhaps add TEX_BIN, LATEX_BIN, and text editor to quickly add stuff like that!!
    external commands:
      website to recommend learn more
      needs what type of file
      needs how many files
      needs what other info
ImageProperties image properties imageinfo image info:
  click for file should show preview... there are two "..." !!
  select file, not updating view?
  In image properties dialog, have the popup list of potential previews
    preview style needs debugging and testing so as not to fry the freedesktop ones

if you change an eps to a non eps with the insert file, it still thinks it is an eps..
 image objects should auto change between the available image formats:
  bitmap--eps--embedded svg--dynamic
  Dynamic Content:
    displayed as images, or displayed as group of laidout objects
    possibly multiple images or objects in linked list:
      one source creates multipage ps, for instance, each page gets its own object
    controller source object:
      generator command + context
   examples:
    ps/tex/pdf/etc to eps files, import the eps files
    broken down equirect panorama to net
Image import chain:
  1. eps|EPS: Laidout builtin
  2. svg|SVG: inkscape command line export
  3. other external renderer: asymptote, structure synth, sunflow, pov-ray, lilypond, latex, graphviz, gnuplot
  3. * images: graphicsmagick
  4. jpg, png, gif, tiff: Imlib2

move Value and FieldPlace to laxkit? ValueHash would be very useful to ease configs

soft masking
    mask object optionally converted to grayscale

pagerangeinterface:
  incorporate IndexRange?
  drag off screen should toggle off
  need overlay close box?
  edit base in place
  should remember old label format strings, to easily select back to them

have option to specify language from command line

reimpose option: center images, but not rescale?

improve split window
  control wheel to expand bevel
  load/save split bevel settings
  debug mouse cursor change when over gap
  simplify pane customization, docking

accordion folds:
  map style
  various pamphlet types
  wacky minimal origami: https://www.youtube.com/watch?v=__9_KZi_tpE
  maze books / meander scrapbook
  cootie catcher
  explodion books with cross folds on pages

Make extension to be able to use Inkscape live path effects (lpe)!! Then run on svg snippets, so should be somewhat
  straightforward to call externally.. BUT have optional tool overlay. Figure out how to reverse implement to also
  run within Inkscape.

printer mark rendering default to a single color? editing of net outline allowed, but
then changes not stored

probably should decide how to handle making windows based on interfaces.. it is a more productive route than window dominant

import/export styledefs should use the extendsdef mechanism!!!

views with multiple spreads

messages to the status line should have priorities? so once mouse over messages are cleared, it would revert
  back to a lower priority message

WhateverImposition, to only have limbos, but extra handling for exporting
all at once imposition... this would allow mapping of scribus layout without fuss. that
  could be a special case of n-up, where you specify n to be infinity, with m number of
  columns, not necessarily aligned, as scribus does.


templates Templates:
  partial templates, fill in non defined, like use booklet but manually define paper size
  DONE save as default, or just save as.

Master Pages master pages / template pages:
  have objects be tagged with ref object, so you can create a page with a master page
    that has a "text frame" for instance, but different properties per page
    ProxyObjects : public SomeDataRef
      SomeData *proxy_of; // <- object on master page, for instance, but the real ref object is editable
    option to revert edited object to base proxy
  need option to import master pages from scribus docs

some kind of grease pencil?

Saving: multiple documents open, save only the headwindows that refer only to that doc,
OR save no window configs (saved with project), OR save custom configs

need conversions: gradient->color patch
                  image -> imagepatch <- do with image filters rather than specific object type
                  imagepatch -> image
                  colorpatch -> image?
                  engraver -> path
                  path -> engraver
                  text -> path
Convert:
  bool reversible;
  char *from;
  char *to;
  int support; //like how reliable it is to convert, warnings for what is lost
  CanConvert(object, from, to, warnings_ret);
  newobject = Convert(object, to);

file format prettification  --file-format
  dump should differentiate between DrawableObject and pure resource objects... right now, all lumped together
  adapt the scribus xml/att convertor to parse the output of laidout --file-format into something meaningful...
  #-------blah--------  <- mark a new section
    thing      #thing's docs
      subthing #subthing's docs
    #docs for following atts indented same as previous atts
    next_att #(one or more) next_att docs
  DONE make names/values/comments all kind of line up for those that use dump_out_atts

export with limbo, and no doc or papergroup, means use bounding box for limbo?

measure tool.. configure measurements to be:
 displayer units
 object units
 units mapped to either type of units, so can use light years for units that are actually inch physical paper units
have arrows, and write on screen what the size is...


notes / comments
  be able to apply non-printing notes/comments to page, or page elements that save with the file
  for instance, Penpot has a sort of chat bar
  note should have:
    - source (author): name [avatar]?
	- plain text. or markdown?
	- point to something, a la grease pencil
	- date
	- fg/bg/outline/arrow style

collect for out:
  define directory to pull all files and external resources in
  write out new .laidout file linked for the new system
  define map of  oldfile -> newfile
  name mangling as necessary to prevent clobbering
  need limited collect for only resources used by exported items

    collected/
      images/
      fonts/
      resources/   <- that were laidout resources linked in
      file.laidout with proper links to new dirs
      collect.log  <- what was collected / rasterized?

preflighting:
  steps:
    specify layout and spread range
    specify checking functions
    step through each object
    run checking function(s) on object
    append trouble spots to error log
      needs path to object:  project.limbo / project.doc.page.layer.obj.obj / project.papergroup
      message
      possible remedy
    show window with list of offenders, offer remedies
  check for empty groups
  check for broken images
  check for transparency
  check for bad fonts/missing chars
  compatibility should be determined by file type managers, not individual objects
    return if object is currently compatible with some standard,
    like "PS LL3", "EPS 3.0", "SVG 1.2", "PDF 1.3", "PDF 1.4" "HTML/CSS2"
    1==yes, straight out
    2==yes, but needs rasterizing
    this would simplify preflight checking

maybe expand the page label system to have some kind of to-do markup.. this could be combined with preflight verifiers
  or other search activities as work-in-progress annotations

cloning: convert to master: make a clone be the original..
  means swapping the actual master with the clone
  ..if an object is cloned, maybe just have them all be clones, and original becomes a remote "data block"
      to be dumped to file in a defs section? if all refs gone but one, then it takes place of clone?

for clones, it would be easier to have a "defs" group or something, so deleting the original of a ref will
  not cause problems. When deleting objects, must then take care to update parent, so it is immediately known
  if an object is without a home.

tiling cloner: clone tiler  CloneInterface
  escape doesn't let you go back to object tool
  options:
    show/not-show base + source_clones
    embed origin in pattern
	embed pattern in final
  should have option to apply clones as an object filter, not as actual clones
  should have option to map cell size to cell objects for easier tiling
  default should be use lines only when there is no source object.
  new tiling should update viewport color per basecells
  should not assume preview has I transform
  memory hole back, third time!!!
  radial needs wind scale input
  DONE fill out the Tiling objectdef
  DONE bug: Tiling doesn't save, need to make Tiling be a Value so it can be io with drawable->properties
  DONE various source refs should take names from ref'd objects

  need path morphing
  spiral needs:
    number of spirals: color different for each
	direction of spiral
  need more distinction between what is a base object, and grabbing a copy of existing object.. too easy to confuse the two!
  copies should be selectable, at least so you can adjust the colors: gave current_base, current_copy
  should have z order controls for base cell stuff
  clipping options when source images overlap in final layout
    maybe be able to modify base cell outline, use that as clip? autocorrect for overlapping?
  snap sources to fit/fill in base cell areas
  implement proper shear/aspect protection for:
    allow shear of p1, p2
    allow non-locked aspect of p1,p2,pm,pg,pmm,pmg,pgg,cm,cmm
  highlighting in selection box should draw name next to the thing on hover
  making new id names needs to make unique
  1m and mg do not seem to work: need a final transform to apply, NOT repeatX/YDir().. those shift without rotate
  bug: not showing orientation arrows correctly when outline cuts through middle of bounding box
  really need undo
  save color hints of base cells with Tiling object
  change color of boundary, and outline preview
  select objects, wrap base cell around it
  implement circular interface
  need rudimentary editor
  need flag for ok for cell to shear, ok for cell to scale x/y independently, and have it apply as it should afterwards
  config:
    default line/fill render style (if any)
    boundary outline style
    base cell outline styles
  should have a render preview to show actual grid coverage
  need finishing tool
  design interface for clone on path
  Hirschhorn Medallion, and other pentagon tilings https://en.wikipedia.org/wiki/Pentagonal_tiling
  truchet tiling
  einstein's hat: https://cs.uwaterloo.ca/~csk/hat/
  penrose/heesch/net clone interface
    penrose p1: pentagons, pentagrams, rhombus, sliced pentagram
    penrose p2: kite and dart
    penrose p3: 2 rhombs
  need progressive search when mouse over box
  autocreate seamless tile image
  autofit source objects/images to the pattern to minimize gaps
  map to inkscape tiling clone on export?

Imposition use cases:
  for sig editor, need paper partitioner, then stack sections
  for same document, have stack of impostions, each with its own page set? would make docs with body pages and
    cover easier, without having to implement full "project"
  booklet contains two threads, read one way, flip book over, read the other way
    remember custom views, to swap rotated display, for instance
  booklet but each paper is trimmed differently, like for tabs
  moebius
  need cutting marks for posterizing for lining up different sheets
  impose only needs access to papergroups
  maybe any spread setup temporarily to another imposition on export?

Net imposition
  create from papergroup: one papergroup used as page spreads, another used as actual paper group?
  net extra scaling non-functional
  NetImposition needs import/export net,
  export svg
  convert to/from laidout elements
  interactive unwrapper and build net interface figure out bleeding and connectivity infrastructure
  figure out more efficient clipping of Imlib images
  finish implementing double sided nets
  saving when net is internal is not proper.. does not distinguish between diff. nets and whole
  import/export cff2?
  export pdf 1.6?
  save different setups: papertile AND net layout
  load save nets from: 1.net files or 2.OFF files(done)

polyptych:
  bug: won't set custom net/paper after edit imposition with polyptych
  can't seem to save new bookmarks or use old ones in polyptych, but it's ok in Laidout

hedron window:
  opengl impl needs a modern refresh
  send imp
  receive imp
  remember net and paper placement
  sometimes paper disappears
  tutorial
  auto generate equirectangular -> flat
  reverse project net onto an equirect for export
  highlight paper when dragging will move it
  need to draw other nets in outline (at least) in paper view
  need to preview sides on hedron
  memory hole in polyptych
  file open, preview hedra
  file open, preview equirects
  need to implement more options for polyhedron connections, to allow mobius strips...
  DONE proper units for papers

implement undo: ideally use same code for both undo and recordable/assignable actions undo/redo:
  bug: seems like SomeData undo doesn't work anymore?
  would be nice to have right click cancel during a left-drag action
  object interface
    need to account for:
      DONE dragging matrix changes
      key flip, or non-dragging changes
      object deletion
  nodes
  image
    quirk with transform between blank image and setting images
    bug: select new file not updating preview
  gradients
  paths
  meshes
    color
    image
  engraver
  inside curve editors
  paper interface
  spread editor
  reimpose
  unwrapper
  metadata stuff
  cloner
  during scripting?!
  saveable?

PlainTextWindow plaintextwindow PlainText plain text window:
  bug: ref count 2 remain on exit
  bug: not loading text when stored as file
  bug: doesn't handle tabs
  need control zoom to change font size
  clicking around doesn't properly update caret drawing
  plain text edit window specify interpreter to process the text with
  DONE PlainTextObjects should be resources

  move selected lines up/down
  regex searching
  jump to line
  jump to previous/next edit (in stack)
  bookmark spots
  option to show line numbers
  indent/unindent selected lines
  toggle expandtab
  comment/uncomment: // or /**/ or #
  indent/unindent
  multicursor edit
  some day should have syntax highlighting in Laxkit::MultiLineEdit

Spread editor: SpreadEditor spread editor spreadeditor
  should have border drag to move, not middle drag

limbo transform should be obeyed. It can be moved, scaled, etc,
page layers should be simplified, each layer behaves according to its transform, and more controls inserted to handle layer maneuvering

configurable command buttons to automate certain things with minimal window clutter....

dump OUT an image list? Scribus has "review images" feature.. can jump to location, edit print/view, etc

repeater tool on path: could be adapted to help animation tweening

animation: real time
  animation interface can set laidout->globals.frame, but how best to add callbacks when a Value is modified?
  anything even remotely real time needs serious rewrite of rendering, and use compute shaders opengl? vulcan?
animationinterface animation interface:
  way to set start, end
  way to set fps
  DONE be able to move strip
  DONE make strip an overlay that can trigger filter updates


how to keep track of class hierarchy? impositions are now listed by resource instance, what is
  best way of keeping track of base imposition classes? this is needed for file format description output

ObjectIndicator:
  When you select down in a list, should not destroy upper stack
  if you click on the (#number siblings) popup list of siblings to select from?

ux polish:
  ux: corner menu, if current document is not in file system, should gray out "Show in filesystem"
  if there is a page/file snafu on export, should return to the export dialog after the error
  when you save, also save a preview of current spread in freedesktop thumbs?
  resizeable ui
  should be able to mass disconnect clones
  current page should be highlighted

  in menus, click down, then drag, will return what is under mouse.. should default to not do anything but stay in menu
  page navigator should allow type in shortcuts like "end" or "-2" for second from last


copy/paste:
  selection of objects
  an object
  object components, like styles
  plain text


General design usability
to be a decent editing platform, Laidout needs:
  copy/paste
  undo/redo
  viewport rendering needs to be far,far better
  master pages with auto page number is important.. for image based page numbers, dynamic objects important!!
  would be convenient to send to gimp for editing, update later live
  when delete/add pages, need option to reposition to same orientation in margin area
  snapping:
    selection snapping: select a bunch of stuff, mark as snap sources, next selection tries to snap against those in old sel, not in new sel
    rotation, maybe drag handle with control?
    snap to bbox vs aabb
  drag constraints more accessible in only y or x direction
  per object visibility
  per object opacity
  better key shortcut edits, right click on menu items to ch key
  guides
  text
  Grouping:
    select only within group zone
    easy selection of proper group zone
    remove 'i' from common shortcuts for all tools to let it be used for ObjectIndicator
  DONE more specific control over transform.. numerical specification
  DONE clipping

ebook conversion, such as by importing from Project Gutenberg

spell checker.. aspell (oldest, lgpl 2.1)? hunspell (used by libreoffice, firefox, lgpl 2.1)? nuspell (c++, lgpl 3.0)?


============== Future of Laidout ================

Goals:
  2D Vector graphics editor built for multiple output types, such as multi-page physical prints, html, or image files
  While 2D focused, has some limited capabilities to lay out on 3d surfaces made out of flat but bent or folded surfaces
Current deficiencies:
  Render update is way too slow, no hardware acceleration and is single threaded
  Too many bugs/quirks in object management, resource coordiation
  undo/redo barely implemented
  copy/paste barely implemented
  cairo is only 8 bit, which limits use
  Way too hard to have user created tools
    internal object system is flexible, but not without a huge amount of boilerplate-like code to tie to scripter
  Being Linux only limits user base, and thus also limits user testing
  no color management
  raster/paint/editable image layers, or stroke based on non-destructive vector paths would help
  too many complex custom systems is not attractive to new devs
Considerations:
  Pure svg/pdf vector graphics is limiting, current custom format is very flexible at expense of shareability
  Game engine-esque, real time animation and 3d tools are rising in importance as everyone aquires powerful cheap devices
  Compute shaders and graphics shaders are very powerful and should be used for speed and image effects
Ways forward:
  maybe gegl-ify everything?
   - fixes 8 bit limit
   - babl flexibility
   - potential cross code with gimp/gegl has long term benefits
   - gegl already can access hardware acceleration for many things
  consider gigantic revamp so that ui is thoroughly customizable:
   - with python:
     - it's good enough for Blender and Krita, right?
     - makes tool development way more accessible to new users
     - downside: you now have to depend on python, which comes with its own version problems
   - with some kind of yaml-like custom format, with css for styling?



===================Consider anything below here food for thought, not active dev notes================
------------------------------------------------------------------------------------------------------
for translations, there is a difference between locale translations and language translations!
  not sure if it is worth paying attention to... need to investigate if locale as it affects keyboard input
  is separate from what locale we read in translations from. If it is distinguishable, that is fabulous, in that
  we can maintain the current locale key input, but change the language translation at will...

investigate pdfcreator as method to reduce file size

historical imposition types:
 Name                  Abbr.       Folds     Leaves    Pages
 Folio                  fo, f        1         2         4
 Quarto                 4to          2         4         8
 Sexto, Sixmo           6to, 6mo     3         6        12
 Octavo                 8vo          3         8        16
 Duodecimo, Twelvemo    12mo         4        12        24  https://rhollick.wordpress.com/2017/06/12/duodecimo/
 Sextodecimo, Sixteenmo 16mo         4        16        32

On duodecimo: 3x4 on a side, cut off the bottom 4, fold, use as insert into more traditional 2x4

food for thought:
  haskell envelope function:  http://projects.haskell.org/diagrams/doc/manual.html



======================================DONE=================================================
When releasing new version, combine these with ROADMAP items for release notes.
These must be moved to the DONE file at each release.
===========================================================================================


DONE freetype-config is deprecated
DONE object indicator should show actual page label in it's description
DONE Page Clip: clip in viewer
DONE Page Clip: svg .. set clip-path on each page layer to page outline
DONE Remove old laxutils based drawing calls in favor of Displayer based drawing.
DONE website: make twitterable
DONE make sure gegl points to 0.4, and no freetype-config
DONE bug: input edit cursor placement is wrong now
DONE Meta window for doc meta
DONE Meta window for html out
DONE html out
DONE bug: text selection and highlighting is really out of whack.. int/float troubles?  <-- dp->textextent is NOT returning same as font->Extent!!
DONE skip pages (at regular intervals) on multi-image import.
DONE animated gif import
DONE Remove obsolete HelpWindow code?
DONE finish phasing out MenuSelector
DONE laidout settings option to always load last file on startup
DONE added rudimentary plugin list window
DONE when using static SingletonKeeper in ColorManager, dlopen would wipe its object. wuuuuh? <-- something about dlopen process wipes some non-statics in some files
DONE ftgl problem in polyptych... font not rendering <-- just needed ftgl update
DONE Gradient:
  DONE dragging colors in radial is still really bad
    DONE sliding radial colors not 1:1
    DONE p1, p2 need little indicator nugget
  DONE resize inner circle, make small past a threshhold makes circle go away
  DONE double click to call up color selector
  DONE dragging p1/2 bars should not rotate
  DONE spread modes
  DONE change object, curpoints still selected
  DONE clipping path is double applying parent path transform
DONE bug: NONE of the interfaces are initializing shortcuts
DONE bug: DocumentExportConfig subclasses need duplicate()
DONE directory reorganization
  DONE ui/ <-- purely ui elements
  DONE core/ <-- implies isolating core functions
  DONE etc
DONE save as should default to same directory as existing file
DONE save as should change save/import/export/current directory to that directory
DONE bug: crash! import images, select image. boom!
DONE bug: switching export types in export dialog not clearing extra fields
DONE icon generation trouble spots: LaidoutIcon.png has wrong bounds, cut in half p3m1 p6 circular_rm 101 icons in main icons.svg:
  DONE old, Inkscape .92: 8.5 minutes
  DONE new, Laidout: 39 seconds !!!
  DONE new new: 3.1 seconds!!!!
DONE all images: 203 icons, 39 seconds!
DONE still to optimize: render to single image, image subset, save that
DONE laidout shell command: Laidout.BuildIcons(["icons/icons.svg","icons/icons-tiling.svg","../laxkit/lax/icons/icons.svg"],
                                          grid_cell_size = .5,
                                          output_px_size = 24,
                                        output_dir="TEST_ICON_BUILD")
DONE bug: patchinterface point select when object transform not identify broken
DONE detect when a resource section is ONLY built in ones, and don't output that section on save
DONE export ranges should accept "1-4, 6, 20-25" and "5-1"
DONE for range on import/export, should have a range parser that accepts unconnected ranges, ie "2,4, 5-10"
DONE perhaps laidout configure should call laxkit configure if it thinks laxkit is not configured yet
DONE Be able to create empties
DONE bug: filters repeatedly writing \"\"\"\"  reading in quoted names? 
DONE don't allow reparent to a child!! or reparent as appropriate
DONE bug: ImagePatchData crashes in preview generation 
DONE add FontValue
DONE bug: experimental in laidoutrc is ignored
DONE MenuInfo AddItem functions are really terrible overload nightmare, need something simpler like, with no menu combined:
  DONE AddItem      (const char *name, int id = 0, int info = 0, int where = -1);
  DONE AddIconItem  (const char *name, LaxImage *icon, int id = 0, int info = 0, int where = -1);
  DONE AddToggleItem(const char *name, LaxImage *icon, int id, int info, int state, int where = -1);
DONE bug: tabframe not showing tabs, such as in help window
DONE bug: spread editor, selected pages have almost not noticeable selected emphasis.. line width problem?
DONE (? can't duplicate) bug: svg out, select to files, often the first time goes to file, not files
DONE exportdialog export dialog: incorporate IndexRange
DONE bug: debug registration, cut marks, trim marks
  DONE custom papergroup, add registration/bars/, can't move it
  DONE can't add cut marks to signatures
DONE bug: menus, left click down, drag to other item, lbup then selects other, but initial still highlighted
DONE object indicator: click on object, does not update selection
DONE bug: space bar for centering not working anymore.. shift-space seems to... fixed somehow
DONE scroll bar zoom handles don't appear to work ?? can't duplicate
DONE bug: calculator: using Math; 1*2*pi -> "Cannot compute with those values"
DONE bug: laxkit, spelled Delaunay wrong
DONE bug: Gradient load in not reading one of the two points
DONE Implement passing on configure options to Laxkit configure
DONE bug: can't duplicate gradient nodes.. causes seg fault
DONE bug: gradients always loading as linear instead of radial
DONE bug: edit singles imposition, change portrait to landscape, apply, ok, now back to portrait, doesn't change!
DONE bug: initial warning about could not load ?? not showing the ??
DONE bug: freehand tool, press any key, crash!!
DONE bug: lax: slight hitch, about 1/4 sec on every button down, XCreateIC() in app->CreateXInputContext() takes forever
DONE bug: scrollbars drawing extra line in bottom half
DONE bug: caption mouse controls don't work on first object??
DONE bug: new doc, pop up spread editor with f3, close the window: crash!
DONE when you try to open something bad with control-o, fails silently.. should show error log
DONE bug: imported white images are not white, very slightly gray. gm load problem?  (255) becomes 254 -> LaxCairoImage::createFromData_ARGB8
DONE bug: SliderPopup: select something that has SLIDER_IGNORE_ON_BROWSE, now it isn't ignored anymore
DONE make lax templates be only .h includes, since gcc complains when .cc isn't included anyway...
  DONE need to do compile speed tests -> marginally faster as separate, makes binary ~1mb larger for some reason?! dup funcs not optimized out?
DONE BBoxValue: needs width and height functions for convenience in scripting
DONE turning off overlays should revert icon to current tool
DONEish configure still sucks:
  DONE laidout configure needs to drive laxkit configure more thoroughly.
  DONE automate default laxkit detection, or git download of laxkit if missing
DONE mageia: makedepend trouble? replace with custom script to get rid of x11-dev dependency?
DONE a built in global variable: current frame/time
DONE bug: ImagePatch doing anything with it causes crash.. before crash, image distorts incorrectly
DONE get splash image working..
DONE have an actual splash image shown
DONE bug: expressions are broken again!!
DONE bug: export, switch off current target then back on: error: missing export source!
DONE bug: home and end throw selection bounds out of whack.. try with gradient tool for instance, controls bad until reselect
DONE should not be able to group select an object and another object nested within
DONE utf8string: move semantics to be more efficient
DONE Gradients: gradientinterface
  DONE check svg export of gradients with new spread method
  DONE should have menu option for radial/linear
  DONE bug: radial gradient not loading
  DONE SHOWCOLORS should be off by default
DONE bug: Engraver fill, just moving mouse around is rerendering to buffer for preview
DONE bug: Initial zoom for new doc bad. space to center only sporadically works
DONE in singles view, spread number in box should be page label instead of spread number
DONE FindInterface:
  DONE pressing enter should trigger last search type (next/prev/all)
  DONE memory hole -> because of ObjectIterator keeping ref to viewportwindow, which is never getting explicitly destroyed as a result
  DONE iconselector needs pad + highlight hover + highlight selected option
  DONE send to viewport and update actually selected
  DONE toggle list vs icon view
  DONE bug: dragging suddenly all messed up??!?!? ... worked around, not really fixed: maybe race condition with resizing? 
  DONE on pressing cntl-f, must focus on pattern lineedit
  DONE need draggable window frame
DONE object clipping:
  DONE (i guess, can't duplicate) applying clip path should not destroy path's style settings
  DONE page previewer in spread editor doesn't use bleeds.. need to refresh thumbs if has bleeds
  DONE in place editing
  DONE apply, remove, extract clip path
DONE layers palette Layers ObjectTree
  DONE must set tree selected to viewport selected on viewport selection change: must implement ObjectTreeWindow::UpdateSelection()
  DONE bug: not remembering flags column width.. for a flags column, should always be visible?
  DONE must set viewport selected on tree selected change
  DONE flags, click to change: locked visible
  DONE edit colors not highlighting every other
DONE bug: image properties layout for filename truncates
DONE fix off by one error when importing "m/n" for every nth
DONE bug: crashes when changing export formats away from Image
DONE bug: PDF export does not handle object bleeds
DONE bug: bez_intersect_bez is returning spurious result when there are 9 intersections. One point frequently returns as 0 -> (0,0)
DONE work around MD5() in openssl being deprecated to remove compile warning
DONE bug: can zoom in too far, crashes cairo matrices. unrecoverable!!
DONE convert Laxkit::Palette to GradientStrip instead
DONE (can't duplicate) crash: Start blank, then open recent doc with an ObjectTree. click on an object, crash! querying wrong viewport?
DONE bug: popup menus: submenus spawning on wrong side on far right monitors
DONE bug: lineedit cursor is leaving artifacts
DONE (but now only xdg-open on a dir, not a file) bug: document-> show in filesystem opens file in text editor??!?
DONE bug: Math Expression node, do "Math.whatever": crash!