deprecatedtodolol.txt

stack build  --profile -- potato-flow-vty-exe +RTS -xc

stack --work-dir .stack-work-profile --profile  exec -- potato-flow-vty-exe +RTS -xc


::TEXT-ICU nonsense::
icu4c is keg-only, which means it was not symlinked into /usr/local,
because macOS provides libicucore.dylib (but nothing else).

If you need to have icu4c first in your PATH run:
  echo 'export PATH="/usr/local/opt/icu4c/bin:$PATH"' >> /Users/user/.bash_profile
  echo 'export PATH="/usr/local/opt/icu4c/sbin:$PATH"' >> /Users/user/.bash_profile

For compilers to find icu4c you may need to set:
  export LDFLAGS="-L/usr/local/opt/icu4c/lib"
  export CPPFLAGS="-I/usr/local/opt/icu4c/include"

For pkg-config to find icu4c you may need to set:
  export PKG_CONFIG_PATH="/usr/local/opt/icu4c/lib/pkgconfig"


::LAYER AND SELECTION TYPES::

-manipulator
  -CSBoundingBox (always shows)
    -get rid of MBox, just inherits CSBoundingBox
      -need to figure out inversion issue still though
    -does not show for null elements
  -specific manipulator (per tool)
    -must manage mouse hierarchy or guarantee that manipulators never overlap
      -maybe hide manipulators on manipulation? Nah
  -it would be nice if click once doesn't actually create  the element until
    -dragging (as it is now)
    -release (creates a box with default size)
-canvas select
  IGNORE-if cursor == CSSelect
    -OnClick -> cursor = CSSelecting
      -supresses manipulators
        -how do I do this?
    -OnClick/Drag -> select_lBox :: Event t LBox
    -OnRelease -> cursor = CSSelect
  -if cursor == CSSelect
    -OnClick ->
      -on element -> begin CSBoundingBox translate
      -off element -> begin LBox selection
        -OnRelease -> finish LBOx selection -> select_lBox :: Event t LBox
    -this design matches illustrator behavior
  -broadPhase_cull :: LBox -> [REltId]

-selection manager
  -input selection
    -new element :: Event t (LayerPos, SEltLabel)
    -layer click  :: Event t [LayerPos]
    -canvas select :: Event t (REltId)
  -output
    -_selectionManager_selected :: Dynamic t (Bool, [SuperSEltLabel])
        -consumed by Manipulators
        -consumed by Params
  -data/methods
    -Data VisState = Visible | Hidden | Lock | Hidden/Lock
    -Data VisStateInternal = InheritParent | VisStateInternal VisState
    -reverse_layerPos :: REltId -> LayerPos
    -status :: LayerPos -> VisState


::UI NOTES::
-vty
  DONE/IGNORE-setup reader monad
    -off pane click events
    -blink timers
    -escape key?
  DONE-maybe some better way to deal with off pane dragging
    DONE-also need to capture release events that happen off pane
      -this can happen off screen too, maybe you can capture release events off screen? not sure
        -if not, you'll have to check for a new click event and see if there was a prior release event
    DONE-i.e. modify pane implementation to ignore drag events that started off pane
  DONE-text box that takes return key as confirming a text box and firing off a confirm event, also loses focus?
  -pop up panes (e.g. to save to file or whatever)
    -needs to take away focus from panes in the background
      -we could ad-hoc solves this by having panes always out of focus if the pop up is in focus

-layers
  -folders
    -click folder selects all contents
    -deselect content of folder deselects all parent folders recursively
  -hidden/locked/contracted
    -need to keep track of which elts/folders are hidden/locked/contract
    -need something that updates when layers change
    -elt is locked/hidden if it's locked/hidden or any of its parents are locked/hidden
  -rename
  -multiselect
    -highlights in canvas
  -drag and drop
-manipulators
  DONE-need custom vty image widgets to draw canvas points
    -captures mouse down events for dragging per handle
      -each handle drag event triggers a modify event
  DONE-do I need to focus when dragging handles?
    -I think so, so that parents ignore dragging events when dragging handles
  -cancel event to cancel drags
  -first time modifies need to undo the creation of elt as well so you don't need to undo twice (once for modify and once for new elt)
    -make sure layer position of new elt is tracked correctly
  -text input box exact overlay
    -if we use built in text input, it unfortunately will create a whitebox that covers other stuff...
      -maybe you can at least make the box not white D:
  -sline multi click when creating new one
    -click same spot to finish?
    -click drag to move line, what happens if it's an endpoint? corner?
  -move cursor, you can move/resize via CBoundingBox even if just one thing is selected
-renderer
  DONE-hook up BroadPhase renderer
  -ignore hidden
-selecting
  -ignore hidden/locked
  -click select single
  -click drag select many (draw bounding box)
  -selected bounding box
-params

::line tool::
-series of points restricted to V/H
::text tool::
-click once and just start typing, return adds a new line
-click and drag to establish an area to type in
-params
  -text align
  -insert vs overwrite
    -need a way to convert overwrite to insert based on text align without adding too many space characters
::free line tool::
-series of points
-params
  -line style

::params::


::NEW TODO::
-need to use holdUniqueDyn or something like that now that you have
  -sucks that this needs to do all the equality comparisons with unique. Is there a smarter way around this?
    -I think either way, the fanning should happen in potato-flow.. and this way it's easy to change implementation
-refactor selecting code
  -selecting code still runs after a cancel
  -single click -> straight into dragging
  -select draws a box
-create a common manipulator include file
  -all manipulators take a common input so you should just combine them into a single data struct
-get basic params working
-manipulate many doesn't work well with inverted boxes
  -one way to fix this is to force normalize boxes on ManipEnd but I don't like this... what if we want inverted stuff in the future?
  -so the "right" way to fix is to store the normalized state at start of bulk manipulate in a dynamic
-click and release makes box with default size (so no 0 size boxes)
-figure out how to choose boundingbox vs specific manipulator when only one elt is selected
  -you could do the "v" and "a" tool as in illustrator, probably the way to go
    -but what happens when you click and drag with the "a" tool?
-delete button support
-duplicate support plz
-refactor didCaptureInput so it's not done on a per event basis
-consuming keyboard
-click select seems to select bottom most now
-load file D: lots of work to do
-render outside canvas border
-I want it so selected elements get a soft highlight in the background D:
  -do a second render of just selected elements
    -backgroundFill to render empty stuff
    -you can hook this up to the same delta rendering only
-figure out how you want to handle vty attributes
-do render order properly in Canvas

DONE/IGNORE-box handles still showing when they aren't suppose to
  -prob will fix itself when you to BBoundingBox
DONE-consider adding hide flag to handles
  -very broken after switching to box tool when previous just created object was changed
DONE-boundingbox stuff
  -use same code as MBox, but different behavior based on manipulateImmediately
DONE-try this http://nominolo.blogspot.com/2010/04/haskell-tip-redirect-stdout-in-haskell.html to get stdout
DONE-you need to do monolithic layers because processing drag events using widgets individually gets way too expensive5\IGNORE-consider storing visibility/lock states in SEltLabel
IGNORE-consider hiding handle during creation drag
DONE-move multiselect into selection manager
DONE-probably remove cursor and just use tooldyn
DONE-activate manipulator on tool select
DONE-move new elt into manipulator
  -align in manipulator/canvas to decide if it's a "very new" elt
DONE-move dynManipulator into selection
DONE-cancel event to cancel manipulator drags
DONE-tool highlighting
DONE-do proper implementation of shift select in selectionmanager
DONE-splitHDrag2 resizing is broken
DONE-move TODO into vty

::FUTURE::
-multiple BoundingBox scaling modes
-add keyboard manipulation to manipulators
  -no selection -> pans canvas


::VTY CHANGES::
-MonadNodeId constraint not needed for pane?
-added PostBuild constraint to Layout
-added splitH and splitHDrag
  -maybe do splitHDrag0 and splitVDrag0 for versions that allow initial size
  -try and combine code, prob not though..
  -(note splitHDrag2 is using pane2 right now)
-added pane2, propose to modify pane to use pane2 implementation
MERGED-(tile . fixed) an issue in `drag` where mouse down would trigger on wrong button
  - `end && btn == btn'  -> Just $ Drag (x,y) (x,y) btn' mods' False`
-added `Drag2` and `drag2` which can track drag start events
  -TODO implement splitVDrag with Drag2 as an example
-add default implementations of HasVtyInput, HasFocus and ImageWriter
-add hDuplicateTo for stderr