Todo list update

TODO.txt

@@ -24,7 +24,9 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - window: increase minimum size of a window with menus or fix the menu rendering so that it doesn't look odd.
  - window: double-clicking on title bar to minimize isn't consistent, perhaps move to single-click on left-most collapse icon?
  - window: expose contents size. (#1045)
+ - window: resize from borders and/or all corners. (#822)
  - window: GetWindowSize() returns (0,0) when not calculated? (#1045)
+ - window: refactor IsWindowFocused(), merge all three existing variants, add flags, similar to #1382.
  - window: freeze window flag: if not focused/hovered, return false, render with previous ImDrawList. and/or reduce refresh rate. 
 !- scrolling: allow immediately effective change of scroll after Begin() if we haven't appended items yet.
  - scrolling/clipping: separator on the initial position of a window is not visible (cursorpos.y <= clippos.y). (2017-08-20: can't repro)
@@ -35,7 +37,8 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - drawlist: maintaining bounding box per command would allow to merge draw command when clipping isn't relied on (typical non-scrolling window or non-overflowing column would merge with previous command).
  - drawlist: avoid passing null (-9999,+9999) rectangle to end-user, instead perhaps pass rectangle based on io.DisplaySize?
  - drawlist: primtiives/helpers to manipulate vertices post submission, so e.g. a quad/rect can be resized to fit later submitted content, _without_ using the ChannelSplit api
-
+ - drawlist: non-AA strokes have gaps between points (#593, #288), especially RenderCheckmark().
+ 
  - main: considering adding an Init() function? some constructs are awkward in the implementation because of the lack of them.
  - main: find a way to preserve relative orders of multiple reappearing windows (so an app toggling between "modes" e.g. fullscreen vs all tools) won't lose relative ordering.
  - main: IsItemHovered() make it more consistent for various type of widgets, widgets with multiple components, etc. also effectively IsHovered() region sometimes differs from hot region, e.g tree nodes
@@ -163,9 +166,11 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - shortcuts: programmatically access shortcuts "Focus("&Save"))
  - menus: menubars: main menu-bar could affect clamping of windows position (~ akin to modifying DisplayMin)
 
+ - text: selectable text (for copy) as a generic feature (ItemFlags?)
  - text: proper alignment options in imgui_internal.h
  - text wrapped: figure out better way to use TextWrapped() in an always auto-resize context (tooltip, etc.) (#249)
  - text: it's currently impossible to have a window title with "##". perhaps an official workaround would be nice. \ style inhibitor? non-visible ascii code to insert between #?
+ - text link/url button: underlined. should api expose an ID or use text contents as ID? which colors enum to use?
 
  - tree node / optimization: avoid formatting when clipped.
  - tree node: tree-node/header right-most side doesn't take account of horizontal scrolling.
@@ -207,6 +212,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - pie menus patterns (#434)
  - markup: simple markup language for color change?
 
+ - font: free the Alpha buffer if user only requested RGBA.
 !- font: better CalcTextSizeA() API, at least for simple use cases. current one is horrible (perhaps have simple vs extended versions).
  - font: better vertical centering (based e.g on height of lowercase 'x'?). currently Roboto-Medium size 16 px isn't currently centered.
  - font: enforce monospace through ImFontConfig (for icons?) + create dual ImFont output from same input, reusing rasterized data but with different glyphs/AdvanceX
@@ -228,6 +234,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - nav: integrate navigation branch into master. (#787)
  - nav: integrate/design keyboard controls. 
  - nav: once tab should go through most/all widgets (in submission order?)
+ - nav: currently cannot access menubar of a child window with Alt/menu key. 
  - nav: esc/enter default behavior for popups, e.g. be able to mark an "ok" or "cancel" button that would get triggered by those keys.
  - focus: preserve ActiveId/focus stack state, e.g. when opening a menu and close it, previously selected InputText() focus gets restored (#622)
  - focus: SetKeyboardFocusHere() on with >= 0 offset could be done on same frame (else latch and modulate on beginning of next frame)
@@ -236,7 +243,8 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - inputs: allow to pass explicit double-clicks if that's the only thing the user's backend can get them. (e.g. for windows by the CS_DBLCLKS style).
  - inputs: support track pad style scrolling & slider edit.
 
- - misc: make the ImGuiCond values linear (non-power-of-two). internal storage for ImGuiWindow can use integers to combine into flags.
+ - misc: idle refresh: expose cursor blink animation timer for backend to be able to lower framerate.
+ - misc: make the ImGuiCond values linear (non-power-of-two). internal storage for ImGuiWindow can use integers to combine into flags (Why?)
  - misc: provide a way to compile out the entire implementation while providing a dummy API (e.g. #define IMGUI_DUMMY_IMPL)
  - misc: provide HoveredTime and ActivatedTime to ease the creation of animations.
  - misc: fix for compilation settings where stdcall isn't the default (e.g. vectorcall) (#1230)