- Platorm replay improvements
  - Forward/Backward 1 frame
  - Multiple slots
  - Save/Load replay to/from file
  - Select a starting state 
  - Overwrite a recording buffer partially.
    - Idea: Always load/to Save.Buffer so that we have enough space to eventually get it out.
  - We could use an arena for permanent memory so that the platform knows exactly how much memory to write to disk to speed up load/save times.  But in the end we might end up being using all that memory or more so does it really matter?

- PlatformLog & AppLog which have FrameIdx attached.
- Cycle panels

- Fat panel struct instead of text panel nodes.

- Popup window / Prompt / Command palette

- Common UI button behavior
  - only "clicked" when button was pressed mouse goes up inside of it

- albedo sample 

- Speed up atlas creation.
- Glyph cache for faster atlas creating

- text: Undo/Redo
- text: Have text be clipped at pixel level and not rectangle level

- Display images through shader
- Sound
  - when hovering over an item
  - when clicking

- ui: Assert when adding the same box twice.

- panels: Go for megastruct instead, panel has kind (e.g., text) 

- cling: On windows get cling to run ./cling_temp.exe even when "norebuild" since that will be the most up-to-date version of the program.

- Marker in arena's to not have to clear to 0 from freshly allocated pages.

- platform: linux: release clipboard when exiting
 
- text: when selecting with mouse, do not scroll
- text: When selecting to the side of the text do select as well.
- text: Virtual whitespace
- text: Improve text rendering
  - Check text rendering extensively (xoff & leftsidebearing)
- text: Unicode
  - kb_text_shape()
  - harfbuzz
  - implement all movements taking unicode into account

- text: Non contiguous selection (e.g., with control)

- make initialization with permanentarena homogenous
  ? Poisoning should take care of everything, do the rest manually,  since we are using arena's it's not that much work
  - We should only be pushing once on PermanentArena.
    And be able to push onto PermanentArena when !Memory->Initialized

- platform: keyboard input (pressing & holding, vs text)
  - easier query of keys & modifiers.
  - to have key binds. (WasPressed(Control, 'c')
- platform: linux: investigate startup time.
  - choosing visual config ~40ms
  - atlas = 90ms
- platform: window resizing
- platform: sleep when idle
- platform: custom borders and titlebar

- unified logs
  - with date, system, level and stacktraces
- Cmdline hash table

- ui: Implement properties from https://www.dgtlgrove.com/p/ui-part-3-the-widget-building-language
- ui: inset elements
- ui: panels
  - rotate columns
  - tabs
- ui: windows

- tick() function?

- win32: repaint and resizing.
  - 24:36

- shader:
  - group draw calls with those that need the same texture and those that don't without changing draw order (because foreground&background) 
  - find a way to push a texture for a number of rectangles
  - then pop when not adding characters anymore

# Archived
x Ryan's layout algorithm
x Specify axis
x Draw background + border + gradient
x ui_comm from UI_AddBox()
x draw text from same shader
x center text vertically & horizontally
x specify vertical & horizontal padding for text, or maybe don't
x Assert that rect instances does not exceed the max instances allowed.\
x Use DrawRect() in DrawRectChar()
x Remove ReadOnlyMemoryBlock
x Stacks for selecting options like ryan
x make hot reloading shader optional
x Spacer
x Proper hashing of string and splitting up into DisplayString
x Solving violations
x win32: flickering
x panels: 
  x draggable array to change PercentOfParent
  x create/split new panel
  x close panel button
x proper mouse dragging
x clipping
x after splitting multiply all old panes on same axis by (1 - 1/n) and give the new pane size 1/n
x Evict boxes from cache when they aren't touched anymore
x prune stale elements from cache on the end of UI_ResolveLayout()
x Add back text rendering of the input buffer
x profile compile times on linux
  - standard libraries (linux et al): 100ms, math.h: 100ms, gl_core: 50ms
x Fix UI layouting not working for nested elements
x Metaprogramming:
  x flag enums
  x shaders
platform:
  x loop editing
  x profiler: toggle key bind
  x save/load state to disk
  windows:
    x editor_libs.o in .bat script
    x rename to editor.exe
app:
 x ui bug when using PercentOfParent, can overflow with rounding error. (tested with .25f)
   -> wasn't a rounding error.
x Custom draw command for rendering text edit view.
x replace X macros
x Eat up input events, because resizing a pane shouldn't be clicking buttons or selecting text.
  x concept of "selected" to receive key inputs.
x Implement dragging in the platform layer
x prune boxes correctly after closing panel
x panels: resizing
x panels: selected panel so that input events only go to one panel
x panels: close panel button
x panels: better positioned resize border
x text: Scrolling text
x text: Movements
x text: Deletions
x text: Selections
x text: Clipboard
x platform: clipboard: use bool instead of second buffer `PlatftormSetClipboard`
x text: multiple buffers
x Smooth smooth animations
x replay: Separate renderer such that we can also render some debug UI from the platform. (Overlay debug info)