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A free and open source framework for building powerful, fast, and elegant 2D and 3D apps that run on macOS, Windows, Linux, iOS, Android, and the Web with a single pure Go codebase, allowing you to Code Once, Run Everywhere.

Home Page: http://cogentcore.org/core

License: BSD 3-Clause "New" or "Revised" License

Go 98.23% JavaScript 0.49% CSS 0.07% HTML 0.05% Java 0.17% C 0.15% Objective-C 0.32% Assembly 0.02% GLSL 0.36% Yacc 0.05% Makefile 0.04% HLSL 0.03%

go golang gui graphics vulkan android cross-platform ios linux macos web windows apps toolkit

core's Introduction

Cogent Core is a free and open source framework for building powerful, fast, and elegant 2D and 3D apps that run on macOS, Windows, Linux, iOS, Android, and the Web with a single pure Go codebase, allowing you to Code Once, Run Everywhere. See the Cogent Core Website for more information, including extensive documentation and interactive running examples. The website itself is a Cogent Core app running on the web using wasm.

NOTE: Cogent Core is currently undergoing a period of significant development to make it easier to make powerful, fast, and elegant apps. As such, some of the information in this repository and on the Cogent Core website may be incorrect. Furthermore, there are ongoing breaking changes, so starting new apps with this framework is not recommended at this time; if you do, please be ready to adjust to any breaking changes. We are planning to make a v1 stable release in early June (see the v1 milestone).

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core's Issues

Add support for search functionality in TableView and TreeView

In FileView, not clear if beneficial relative to completion in the textfield.. but probably some general kind of search box with < > arrows that scrolls to different rows in the tableview would be easy and generally useful.

SVG: Viewbox options are present but not accounted for

All the business about preserving aspect ratios and which dimension gets scaled etc.

Clicking Update with cursor still in text editing field in GoGi editor erases text

...my expected behavior seems that it would save, then Update/Apply. If I go ahead and leave the text editing field then it gets temp-saved that can be presumably Updated, etc.

Requires Windows 8

By using SetProcessDpiAwareness it requires that windows applications build using this library will only run on Windows 8.1 and later. On Windows 7 it causes a panic.
Is this intentional?
If so, it seems unfortunate, as Windows 7 is still the most widely used Windows version.

Not clearly dealing with virtual vs. physical screens / desktops etc.

Not really sure how this works on different platforms etc. I only ever use one screen or the other and it works fine for that (modulo issue #25)

on mac, dragging a window to a new screen is not registered properly (wrong DPI used) and window placement continues to show up on original screen.. window placement code also restricts placement based on screen size.
haven't even started to test on other platforms -- just been using virtual machine.

Dynamic screen changes not being registered

If you plug into an external monitor, etc, it doesn't know about that and doesn't re-collect screen data and reconfigure everything accordingly. Shouldn't be that hard within gi itself but oswin driver part might be a bit more complicated.

Drag-n-drop: support OS DND events coming in and going out of window

probably also best way to support between-window DND, rather than trying to cobble a custom solution. with all the existing clipboard etc support it shouldn't be too hard, at least on mac. :)

Time delay for tooltip text to display (GoGi Editor) is longer than I'm used to

...I'd say significantly so.

Crash again with cursor move in GoGi Editor window

After playing with the sliders and scrollbars I went back to GoGi Editor window and sequentially selected slider1, slider2, scrollbar1, etc. in the WinVp tree. At some point a cursor move in the edit window (on right) caused a crash. Terminal output below starts with playing with the sliders, etc. in the widgets window.

...
Received slider signal: SliderReleased from slider: slider1 with data: 0.5
Received slider signal: SliderPressed from slider: slider2 with data: 0.59404325
Received slider signal: SliderReleased from slider: slider2 with data: 0.0032639739
Received slider signal: SliderValueChanged from slider: slider2 with data: 0.0032639739
Received scrollbar signal: SliderPressed from scrollbar: scrollbar2 with data: 0.5120658
Received scrollbar signal: SliderReleased from scrollbar: scrollbar2 with data: 0.4564935
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar2 with data: 0.4564935
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x20 pc=0x42dfbad]

goroutine 51 [running]:
image.(*RGBA).Bounds(...)
/usr/local/Cellar/go/1.10.3/libexec/src/image/image.go:72
github.com/goki/gi.(*Viewport2D).ComputeBBox2D(0xc4375aa000, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffa8)
/Users/thazy/go/src/github.com/goki/gi/viewport2d.go:316 +0x2d
github.com/goki/gi.(*WidgetBase).Move2DBase(0xc4375aa000, 0x0, 0xffffffffffffffa8, 0x0, 0x0, 0x0, 0x0)
/Users/thazy/go/src/github.com/goki/gi/widget.go:370 +0xf1
github.com/goki/gi.(*Viewport2D).Move2D(0xc4375aa000, 0x0, 0xffffffffffffffa8, 0x0, 0x0, 0x0, 0x0)
/Users/thazy/go/src/github.com/goki/gi/viewport2d.go:390 +0x6d
github.com/goki/gi.(*Node2DBase).Move2DChildren(0xc42e64bb00, 0x0, 0xffffffffffffffa8)
/Users/thazy/go/src/github.com/goki/gi/node2d.go:558 +0x152
github.com/goki/gi.(*WidgetBase).Move2D(0xc42e64bb00, 0x0, 0xffffffffffffffa8, 0x0, 0x0, 0x0, 0x0)
/Users/thazy/go/src/github.com/goki/gi/widget.go:375 +0x8f
github.com/goki/gi.(*Node2DBase).Move2DChildren(0xc42de5aa08, 0x0, 0xffffffffffffffa8)
/Users/thazy/go/src/github.com/goki/gi/node2d.go:558 +0x152
github.com/goki/gi.(*Layout).Move2D(0xc42de5aa08, 0x0, 0xffffffffffffffa8, 0x33e, 0x11a, 0x9de, 0x781)
/Users/thazy/go/src/github.com/goki/gi/layout.go:1619 +0xd3
github.com/goki/gi.(*PartsWidgetBase).Move2D(0xc42de5a600, 0x0, 0xffffffffffffffa8, 0x33e, 0x11a, 0x9de, 0x781)
/Users/thazy/go/src/github.com/goki/gi/widget.go:755 +0xed
github.com/goki/gi.(*Node2DBase).Move2DChildren(0xc429302500, 0x0, 0xffffffffffffffa8)
/Users/thazy/go/src/github.com/goki/gi/node2d.go:558 +0x152
github.com/goki/gi.(*Layout).Move2D(0xc429302500, 0x0, 0x0, 0x32e, 0xdf, 0xa19, 0x791)
/Users/thazy/go/src/github.com/goki/gi/layout.go:1619 +0xd3
github.com/goki/gi.(*WidgetBase).Move2DTree(0xc429302500)
/Users/thazy/go/src/github.com/goki/gi/widget.go:391 +0x185
github.com/goki/gi.(*Layout).SetScroll.func1(0x4629220, 0xc429302500, 0x462af20, 0xc42e804000, 0x0, 0x44c64c0, 0xc4289ea3c8)
/Users/thazy/go/src/github.com/goki/gi/layout.go:1097 +0x8c
github.com/goki/ki.(*Signal).Emit(0xc42e805af8, 0x462af20, 0xc42e804000, 0x0, 0x44c64c0, 0xc4289ea3c8)
/Users/thazy/go/src/github.com/goki/ki/signal.go:157 +0x1b6
github.com/goki/gi.(*SliderBase).SetValueAction(0xc42e804000, 0x42b00000)
/Users/thazy/go/src/github.com/goki/gi/sliders.go:269 +0xd6
github.com/goki/gi.(*Layout).ScrollDelta(0xc429302500, 0x0, 0xffffffffffffffff, 0x462a0a0)
/Users/thazy/go/src/github.com/goki/gi/layout.go:1167 +0xcd
github.com/goki/gi.(*Layout).LayoutScrollEvents.func1(0x4629220, 0xc429302500, 0x462de40, 0xc420412d80, 0x3, 0x454ea20, 0xc4202e0000)
/Users/thazy/go/src/github.com/goki/gi/layout.go:1488 +0x9b
github.com/goki/gi.(*WinEventRecv).Call(0xc430ee5dd0, 0x462de40, 0xc420412d80, 0x3, 0x454ea20, 0xc4202e0000)
/Users/thazy/go/src/github.com/goki/gi/window.go:1081 +0x6d
github.com/goki/gi.(*Window).SendEventSignal(0xc420412d80, 0x4622da0, 0xc4202e0000, 0x2600701)
/Users/thazy/go/src/github.com/goki/gi/window.go:1195 +0xc65
github.com/goki/gi.(*Window).EventLoop(0xc420412d80)
/Users/thazy/go/src/github.com/goki/gi/window.go:960 +0xd5a
created by github.com/goki/gi.(*Window).GoStartEventLoop
/Users/thazy/go/src/github.com/goki/gi/window.go:438 +0x3f
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/gi/examples/widgets$

TextField loses focus popup dismissed

Thought it was specific to completer but the problem is there with popup edit menu. After the popup is dismissed the field no longer has focus.

Also the highlight on selected text disappears when you bring up the edit menu so you can't see what you are cutting, copying, etc.

Add option to prevent all rendering of iconified windows?

code can currently check win.OSWin.IsIconified() and not update display -- probably that is good enough but might be generally useful to have a default impl that just bails on updating, then does a full re-render when window is de-iconified. Just need to test for various potential crash-points -- may be not worth it if too many.

Different window display behavior depending on application focus

On macbook pro "all desktops" view some windows not displayed if focus is not on goki (widgets.go) app, while are displayed if focus is in goki:

Focus not in goki:

Focus in goki:

COMMENT: FWIW, the difference seems to be user-level windows vs. admin-level windows? But I don't believe I have seen than differential display behavior in other applications.

Register Fullscreen status in oswin Windows, send events?

Not clear what the implications are exactly, so not implemented yet, but very straightforward based on what is already there for "minimized" etc.

Clicking Prefs override box causes it to disappear

Cannot re-enter a text editing field.

In the edit1 text edit field I entered some text then looked at edit1 node of the WinVp tree to watch the text field updating. However, when I went back to the widgets window I couldn't get the focus to re-enter that field to continue entering text. FYI, I could enter text in the actual editor's text field, then exit that field by clicking in a different field, then click 'Update' to update the text in the widgets window edit1 text field. FYI, clicking Update before exiting the editor text field still clears the new entries (instead of "taking" and then updating the widgets window.

ALSO, using the <- or -> arrows sometimes made the cursor jump to the next edit field (integers; named 'spin' in the WinVp tree).

Grid layout doesn't support spans

Every cell is a cell -- can't have an element that spans across multiple cells. HTML has such a capability, but specifying and managing it can get complicated quick, especially supporting vertical and horizontal spans etc.

A simple horizontal multi-cell would be relatively simple and is probably good enough for the vast majority of cases?

Button1 dialog window cuts off text; resizing can fix for some sizes, but other sizes cut off again.

Getting plus cursor moving out of spin widget

Rendering in different colors leaves a trace of previous color -- same with fonts

for reasons that I've been unable to fix / fathom, rendering one rectangular box over another, even in draw.Src mode in both cases, with theoretically the exact same coordinates, leaves a tiny trace outline of previous color. You can see this when tabbing in menus, or moving selection around in TreeView. I tried a lot of things to get rid of it, without luck.

Also seeing it when text renders over itself. Seems to be some kind of penumbra effect during anti-aliasing that is dependent on the surround colors..

One drastic soln would be to re-render entire display every time.

But overall I've seen it as a kind of a "feature" in giving you a very subtle breadcrumb trace of where you've been..

focus not leaving text field

If I click in text field (also spin text field) and then click on combo or slider, etc. and then type a character it goes into the previously focused text field. I suppose you could have designed it this way?

When I then do Command-Q to quit the Widgets demo a 'q' appears in text field and the app doesn't close.

Add support for loading custom mouse cursors, provide missing ones on various platforms.

requires platform-specific glue to create and set from image + mask + hotspot, and requires more robust asset provisioning strategy (same as icons -- currently not really addressed -- will add a new ticket for that too).

SVG Path enhancements: re-generate, re-parse

generate string from compiled path data, and parse-on-demand of edited string value.

Probably want to have these avail as buttons in StructView interface, using method ValueView code #5

Add Undo package using general-purpose diff records

undo sub-package within gi
use diff package (prob this: https://github.com/sergi/go-diff) on top of json outputs, as in emergent diffmgr
- map of diff records for each top-level entity -- can be many of these in parallel (e.g., textfield vs. ki tree etc)
- records themselves are sequential slices of diff records and commands, with same logic as emergent
- diffing happens in separate routine..

Add Flow Layout types

Not using right now for any of the existing code, but could be handy and should be in there at some point. Consider also supporting a fancier dynamic-programming style of flow layout based on TeX-like principles: https://github.com/bramstein/typeset/blob/master/src/linebreak.js

Cursor-move crash

In window shown, just moving cursor caused crash (terminal record follows; note git pulls and go build):

NOTE: this record also spans when slider1 button got stuck (previous issue report).

hazy@econ1-190-172-dhcp ~/go/src/github.com/goki/gi$ git pull
remote: Counting objects: 33, done.
remote: Compressing objects: 100% (7/7), done.
remote: Total 33 (delta 28), reused 31 (delta 26), pack-reused 0
Unpacking objects: 100% (33/33), done.
From https://github.com/goki/gi
f8f1f5d..f4b4d0a master -> origin/master
Updating f8f1f5d..f4b4d0a
Fast-forward
README.md | 12 +++++--
dialogs.go | 45 ++++++++------------------
font.go | 13 +++-----
giv/argview.go | 175 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
giv/colorview.go | 7 +---
giv/dialogs.go | 104 ++++++++++++++++++++++++++++++++++++++---------------------
giv/filevalueview.go | 72 +++++++++++++++++++++++++++++++++++++++++
giv/fileview.go | 11 ++-----
giv/fontview.go | 61 +++++++++++++++++++++--------------
giv/iconview.go | 71 ++++++++++++++++++++++++----------------
giv/mapview.go | 69 ++++++++++++++++++++-------------------
giv/methview.go | 182 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++------------------------------
giv/prefsview.go | 58 ++++++++++++++-------------------
giv/sliceview.go | 59 ++++++++++++++++++----------------
giv/structview.go | 30 ++++++++---------
giv/tableview.go | 75 +++++++++++++++++++++---------------------
giv/valueview.go | 368 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------------------------------------------------------------
prefs.go | 80 ++++++++++++++++++++++++++-------------------
textfield.go | 101 +++++++++++++++++++++++++--------------------------------
widget.go | 14 ++++++--
20 files changed, 1053 insertions(+), 554 deletions(-)
create mode 100644 giv/argview.go
create mode 100644 giv/filevalueview.go
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/gi$ cd ../ki
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/ki$ git pull
Already up to date.
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/ki$
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/ki$
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/ki$
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/ki$ cd ../gi
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/gi$ cd examples/
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/gi/examples$ cd widgets/
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/gi/examples/widgets$ ./widgets
Received button signal: ButtonPressed from button: button1
Received button signal: ButtonReleased from button: button1
Received button signal: ButtonClicked from button: button1
Doing final Quit cleanup here..
Doing final Close cleanup here..
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/gi/examples/widgets$
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/gi/examples/widgets$
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/gi/examples/widgets$
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/gi/examples/widgets$ go build
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/gi/examples/widgets$
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/gi/examples/widgets$
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/gi/examples/widgets$
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/gi/examples/widgets$
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/gi/examples/widgets$ ./widgets
Received button signal: ButtonPressed from button: button1
Received button signal: ButtonReleased from button: button1
Received button signal: ButtonClicked from button: button1
Received slider signal: SliderValueChanged from slider: slider1 with data: 0.5
Received slider signal: SliderPressed from slider: slider1 with data: 0.5
Received slider signal: SliderValueChanged from slider: slider1 with data: 0.6
Received slider signal: SliderValueChanged from slider: slider1 with data: 0.7
Received slider signal: SliderValueChanged from slider: slider1 with data: 0.8
Received slider signal: SliderValueChanged from slider: slider1 with data: 0.90000004
Received slider signal: SliderValueChanged from slider: slider1 with data: 0.8
Received slider signal: SliderValueChanged from slider: slider1 with data: 0.7
Received slider signal: SliderValueChanged from slider: slider1 with data: 0.6
Received slider signal: SliderValueChanged from slider: slider1 with data: 0.5
Received slider signal: SliderReleased from slider: slider1 with data: 0.5
Received slider signal: SliderPressed from slider: slider2 with data: 0.5777234
Received slider signal: SliderReleased from slider: slider2 with data: 0.49612403
Received slider signal: SliderValueChanged from slider: slider2 with data: 0.49612403
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.26797882
Received scrollbar signal: SliderPressed from scrollbar: scrollbar1 with data: 0.26797882
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.26916382
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.27034885
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.27153385
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.27271885
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.27390388
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.27508888
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.27627388
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.2774589
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.2798289
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.28101394
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.288124
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.290494
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.29404902
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.29760405
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.29878905
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.30234408
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3035291
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.30708414
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.30945414
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.31300917
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3141942
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3165642
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.31774923
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.32011923
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.32130426
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.32367426
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3260443
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3272293
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.32959932
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.33196935
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.33315435
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.33433935
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.33670938
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3390794
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3414494
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.34381944
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.34737447
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.34974447
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.35448453
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.35566953
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.36040956
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3615946
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.36514962
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.36751962
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.37107465
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.37344468
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3758147
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3781847
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.38055474
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.38173974
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.38529477
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3876648
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3900348
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.39121982
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.39358982
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.39477485
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.39595985
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.39714485
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.39595985
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.39477485
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.39358982
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.39240482
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3900348
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3876648
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.38292477
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.38173974
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3781847
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3769997
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.37344468
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.36988965
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.36633462
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.36514962
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3627796
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3615946
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.36040956
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.35922456
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.35685453
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.35566953
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.35448453
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3521145
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.34974447
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.34618944
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.34381944
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3426344
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.34381944
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.34618944
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.34737447
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.34855947
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.34974447
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3509295
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3521145
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.35448453
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.35685453
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.35803956
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3615946
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3627796
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3639646
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.36514962
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3639646
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3627796
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3615946
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.36040956
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.35922456
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.35803956
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.35685453
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.35566953
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.35448453
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3532995
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3521145
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3509295
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.34974447
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3509295
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3521145
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar1 with data: 0.3532995
Received scrollbar signal: SliderReleased from scrollbar: scrollbar1 with data: 0.3532995
Received scrollbar signal: SliderPressed from scrollbar: scrollbar2 with data: 0.5241468
Received scrollbar signal: SliderReleased from scrollbar: scrollbar2 with data: 0.4564935
Received scrollbar signal: SliderValueChanged from scrollbar: scrollbar2 with data: 0.4564935
Received slider signal: SliderValueChanged from slider: slider1 with data: 0.5
Received slider signal: SliderPressed from slider: slider1 with data: 0.5
Received slider signal: SliderValueChanged from slider: slider1 with data: 0.6
Received slider signal: SliderValueChanged from slider: slider1 with data: 0.7
Received slider signal: SliderValueChanged from slider: slider1 with data: 0.8
Received slider signal: SliderValueChanged from slider: slider1 with data: 0.7
Received slider signal: SliderValueChanged from slider: slider1 with data: 0.6
Received slider signal: SliderValueChanged from slider: slider1 with data: 0.5
Received slider signal: SliderReleased from slider: slider1 with data: 0.5
Received button signal: ButtonPressed from button: button2
Received button signal: ButtonReleased from button: button2
Received button signal: ButtonClicked from button: button2
Received button signal: ButtonPressed from button: button2
Received button signal: ButtonReleased from button: button2
Received button signal: ButtonClicked from button: button2
Received button signal: ButtonPressed from button: button2
Received button signal: ButtonReleased from button: button2
Received button signal: ButtonClicked from button: button2
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
Received slider signal: SliderValueChanged from slider: slider1 with data: -0
Received slider signal: SliderPressed from slider: slider1 with data: -0
Received slider signal: SliderReleased from slider: slider1 with data: -0
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x20 pc=0x42dfbad]

goroutine 217 [running]:
image.(*RGBA).Bounds(...)
/usr/local/Cellar/go/1.10.3/libexec/src/image/image.go:72
github.com/goki/gi.(*Viewport2D).ComputeBBox2D(0xc440339000, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff)
/Users/thazy/go/src/github.com/goki/gi/viewport2d.go:316 +0x2d
github.com/goki/gi.(*WidgetBase).Move2DBase(0xc440339000, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
/Users/thazy/go/src/github.com/goki/gi/widget.go:370 +0xf1
github.com/goki/gi.(*Viewport2D).Move2D(0xc440339000, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
/Users/thazy/go/src/github.com/goki/gi/viewport2d.go:390 +0x6d
github.com/goki/gi.(*Node2DBase).Move2DChildren(0xc439b88480, 0x0, 0xffffffffffffffff)
/Users/thazy/go/src/github.com/goki/gi/node2d.go:558 +0x152
github.com/goki/gi.(*WidgetBase).Move2D(0xc439b88480, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
/Users/thazy/go/src/github.com/goki/gi/widget.go:375 +0x8f
github.com/goki/gi.(*Node2DBase).Move2DChildren(0xc442a43088, 0x0, 0xffffffffffffffff)
/Users/thazy/go/src/github.com/goki/gi/node2d.go:558 +0x152
github.com/goki/gi.(*Layout).Move2D(0xc442a43088, 0x0, 0xffffffffffffffff, 0x41d, 0x11a, 0xcc5, 0x781)
/Users/thazy/go/src/github.com/goki/gi/layout.go:1619 +0xd3
github.com/goki/gi.(*PartsWidgetBase).Move2D(0xc442a42c80, 0x0, 0xffffffffffffffff, 0x41d, 0x11a, 0xcc5, 0x781)
/Users/thazy/go/src/github.com/goki/gi/widget.go:755 +0xed
github.com/goki/gi.(*Node2DBase).Move2DChildren(0xc429bce000, 0x0, 0xffffffffffffffff)
/Users/thazy/go/src/github.com/goki/gi/node2d.go:558 +0x152
github.com/goki/gi.(*Layout).Move2D(0xc429bce000, 0x0, 0x0, 0x40d, 0xdf, 0xd00, 0x791)
/Users/thazy/go/src/github.com/goki/gi/layout.go:1619 +0xd3
github.com/goki/gi.(*WidgetBase).Move2DTree(0xc429bce000)
/Users/thazy/go/src/github.com/goki/gi/widget.go:391 +0x185
github.com/goki/gi.(*Layout).SetScroll.func1(0x4629220, 0xc429bce000, 0x462af20, 0xc439a26000, 0x0, 0x44c64c0, 0xc42e81e0c8)
/Users/thazy/go/src/github.com/goki/gi/layout.go:1097 +0x8c
github.com/goki/ki.(*Signal).Emit(0xc439a27af8, 0x462af20, 0xc439a26000, 0x0, 0x44c64c0, 0xc42e81e0c8)
/Users/thazy/go/src/github.com/goki/ki/signal.go:157 +0x1b6
github.com/goki/gi.(*SliderBase).SetValueAction(0xc439a26000, 0x3f800000)
/Users/thazy/go/src/github.com/goki/gi/sliders.go:269 +0xd6
github.com/goki/gi.(*Layout).ScrollDelta(0xc429bce000, 0x0, 0x1, 0x462a0a0)
/Users/thazy/go/src/github.com/goki/gi/layout.go:1167 +0xcd
github.com/goki/gi.(*Layout).LayoutScrollEvents.func1(0x4629220, 0xc429bce000, 0x462de40, 0xc42e973100, 0x3, 0x454ea20, 0xc449e1c040)
/Users/thazy/go/src/github.com/goki/gi/layout.go:1488 +0x9b
github.com/goki/gi.(*WinEventRecv).Call(0xc45200bdd0, 0x462de40, 0xc42e973100, 0x3, 0x454ea20, 0xc449e1c040)
/Users/thazy/go/src/github.com/goki/gi/window.go:1081 +0x6d
github.com/goki/gi.(*Window).SendEventSignal(0xc42e973100, 0x4622da0, 0xc449e1c040, 0x2477aa01)
/Users/thazy/go/src/github.com/goki/gi/window.go:1195 +0xc65
github.com/goki/gi.(*Window).EventLoop(0xc42e973100)
/Users/thazy/go/src/github.com/goki/gi/window.go:960 +0xd5a
created by github.com/goki/gi.(*Window).GoStartEventLoop
/Users/thazy/go/src/github.com/goki/gi/window.go:438 +0x3f
thazy@econ1-190-172-dhcp ~/go/src/github.com/goki/gi/examples/widgets$

add detailed optional parameters struct

there are a bunch of parameters throughout code that could optionally be overridden -- but don't want to have the main prefs saving or overwriting those values. I guess just an option on Prefs to edit the "detailed prefs" or something and those are entirely separate. prefs loading can just look for that filename and load if it exists.. need option to reset too. And for main prefs, an option to reset to defaults. pretty much just want those method buttons I guess..

'Add' button shows through pop-up Props menu (top left)

Asset provisioning strategy for things like icons, cursors, fonts, etc

There was some discussion of this on go-nuts and likely some good accepted solutions..

Column labels don't align with their data fields in font editing window

Add left / right arrow navigation to MenuBar

Currently uses Tab / Shift-Tab but might also be intuitive to support arrows.

Add RadioButton widget

Just a checkbox with mutex logic (and different default styling) -- easiest to just enforce that mutex holds over all children of the same parent.

Option for buttons to repeat when held down.

Straightforward but requires some timing and such -- might be simpler with a new Window-level synthesized event type? Not sure it would be used elsewhere but maybe.

GoGi editor - round corners of the non-popup buttons

They would look more like buttons whereas now they sort of look like text fields

Add ValueView support for Method calling with arg dialog prompt

Should be relatively straightforward. Need to add property(ies) on the type to specify which methods should be exposed in the default StructView of a struct type, and whether they are a button or menu etc.

Multiple "sure you want to quit?" dialogs

When MacBook pro tried to go to sleep/auto shutdown goki prevented shutdown (good!), but it opened up many, many dialog windows as shown in the "all desktops" view:

In GoGi Editor -> CSS map dialog, color bleeds outside 'Add' button

Cursor doesn't oscillate in text editing field

It feels uncanny - not sure if focus is there or not.

Support validation/constraints on text fields

Incorporate https://github.com/asaskevich/govalidator for TextField, and in ValueView -- support for things like phone numbers, etc -- can add those constraints "live" while typing etc.

Add some kind of text language translation facility.

Qt requires you to wrap all use of string literals in some magic cookie, in Go it would be something like: tr.Tr("Ok") ?

But might be simpler to just have Label directly take responsibility for translating everything it gets, with a "translate" property that gets set to true by default, but can be turned off? All fixed-content gui elements go through Label eventually so probably that makes sense, and is more automatic and clean.

is there any existing Go infrastructure that would be helpful for this?

impl can simply be a big map of maps or something like that. need to deal with asset issues for the translation database, etc #8

Add ProgressBar widget

should be very simple.. not sure what best style etc to use and whether there is a useful default here -- do some research.. most likely just same rendering as slider.

For slider1 changing step size to 0.5 froze the position fm which I couldn't move it.

Even when changed back to 0.1 I still couldn't make the slider position budge.

add a consistent close window key fun for all windows

pretty much always want to be able to do this via keyboard.

btw Ctrl+Return does close dialog-type windows with an accept action..

Windows platform: support for multiple screens is very complex

Can't remember the details and links are in the gi/oswin/driver/windriver files but seems like this api evolved a bit over the years and it isn't straightforward to just get a list of all the current screens and figure out which one a given window is on.

ValueView: support "dirty" / edited flag propagation

Both PrefsView and GoGiEditor would benefit from only prompting to save if some change was made. ValueView should easily support this and just need to have a good mechanism for propagating and collecting the result.

Completion not responding to forward/backward in text field

Add thumbwheel widgets

we use these in emergent for zooming, panning 3D display -- seem pretty useful there, but would be good to make sure they don't have same wrap-around and other bugs.

Choosing Value type for CSS style setting caused crash

In WinVP, adding new style setting (?), then changing type (fm string) to Value caused crash:

thazy@macbookpro ~/go/src/github.com/goki/gi/examples/widgets$ ./widgets
Received button signal: ButtonPressed from button: button2
Received button signal: ButtonReleased from button: button2
Received button signal: ButtonClicked from button: button2
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x20 pc=0x42def9d]

goroutine 115 [running]:
image.(*RGBA).Bounds(...)
/usr/local/Cellar/go/1.10.3/libexec/src/image/image.go:72
github.com/goki/gi.(*Viewport2D).ComputeBBox2D(0xc4202e7000, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffc60, 0x0)
/Users/thazy/go/src/github.com/goki/gi/viewport2d.go:316 +0x2d
github.com/goki/gi.(*WidgetBase).Move2DBase(0xc4202e7000, 0xfffffffffffffc60, 0x0, 0x0, 0x0, 0x0, 0x0)
/Users/thazy/go/src/github.com/goki/gi/widget.go:372 +0xf1
github.com/goki/gi.(*Viewport2D).Move2D(0xc4202e7000, 0xfffffffffffffc60, 0x0, 0x0, 0x0, 0x0, 0x0)
/Users/thazy/go/src/github.com/goki/gi/viewport2d.go:390 +0x6d
github.com/goki/gi.(*Node2DBase).Move2DChildren(0xc42b9cc900, 0xfffffffffffffc60, 0x0)
/Users/thazy/go/src/github.com/goki/gi/node2d.go:555 +0x152
github.com/goki/gi.(*WidgetBase).Move2D(0xc42b9cc900, 0xfffffffffffffc60, 0x0, 0x0, 0x0, 0x0, 0x0)
/Users/thazy/go/src/github.com/goki/gi/widget.go:377 +0x8f
github.com/goki/gi.(*Node2DBase).Move2DChildren(0xc42fafdd88, 0xfffffffffffffc60, 0x0)
/Users/thazy/go/src/github.com/goki/gi/node2d.go:555 +0x152
github.com/goki/gi.(*Layout).Move2D(0xc42fafdd88, 0xfffffffffffffc60, 0x0, 0x20, 0x211, 0x533, 0x25e)
/Users/thazy/go/src/github.com/goki/gi/layout.go:1538 +0xd3
github.com/goki/gi.(*PartsWidgetBase).Move2D(0xc42fafd980, 0xfffffffffffffc60, 0x0, 0x20, 0x211, 0x533, 0x25e)
/Users/thazy/go/src/github.com/goki/gi/widget.go:749 +0xed
github.com/goki/gi.(*Node2DBase).Move2DChildren(0xc42e806408, 0xfffffffffffffc60, 0x0)
/Users/thazy/go/src/github.com/goki/gi/node2d.go:555 +0x152
github.com/goki/gi.(*Layout).Move2D(0xc42e806408, 0xfffffffffffffc60, 0x0, 0x20, 0x7d, 0x760, 0x539)
/Users/thazy/go/src/github.com/goki/gi/layout.go:1538 +0xd3
github.com/goki/gi.(*PartsWidgetBase).Move2D(0xc42e806000, 0xfffffffffffffc60, 0x0, 0x20, 0x7d, 0x760, 0x539)
/Users/thazy/go/src/github.com/goki/gi/widget.go:749 +0xed
github.com/goki/gi.(*Node2DBase).Move2DChildren(0xc42b89c500, 0xfffffffffffffc60, 0x0)
/Users/thazy/go/src/github.com/goki/gi/node2d.go:555 +0x152
github.com/goki/gi.(*Layout).Move2D(0xc42b89c500, 0x0, 0x0, 0x10, 0x6d, 0x770, 0x5f6)
/Users/thazy/go/src/github.com/goki/gi/layout.go:1538 +0xd3
github.com/goki/gi.(*WidgetBase).Move2DTree(0xc42b89c500)
/Users/thazy/go/src/github.com/goki/gi/widget.go:393 +0x185
github.com/goki/gi.(*Layout).SetScroll.func1(0x461ad40, 0xc42b89c500, 0x461ca40, 0xc429000000, 0x0, 0x44bb8e0, 0xc42b92dd18)
/Users/thazy/go/src/github.com/goki/gi/layout.go:1097 +0x8c
github.com/goki/ki.(*Signal).Emit(0xc429001af8, 0x461ca40, 0xc429000000, 0x0, 0x44bb8e0, 0xc42b92dd18)
/Users/thazy/go/src/github.com/goki/ki/signal.go:157 +0x1b6
github.com/goki/gi.(*SliderBase).SetValueAction(0xc429000000, 0x44680e00)
/Users/thazy/go/src/github.com/goki/gi/sliders.go:269 +0xd6
github.com/goki/gi.(*Layout).ScrollDelta(0xc42b89c500, 0xfffffffffffffffe, 0x1, 0x461bbc0)
/Users/thazy/go/src/github.com/goki/gi/layout.go:1175 +0x84
github.com/goki/gi.(*Layout).LayoutScrollEvents.func1(0x461ad40, 0xc42b89c500, 0x461f960, 0xc4201ff600, 0x3, 0x4543440, 0xc42919ce40)
/Users/thazy/go/src/github.com/goki/gi/layout.go:1407 +0x9b
github.com/goki/gi.(*WinEventRecv).Call(0xc428f19dd0, 0x461f960, 0xc4201ff600, 0x3, 0x4543440, 0xc42919ce40)
/Users/thazy/go/src/github.com/goki/gi/window.go:1081 +0x6d
github.com/goki/gi.(*Window).SendEventSignal(0xc4201ff600, 0x4614b40, 0xc42919ce40, 0x1d50a501)
/Users/thazy/go/src/github.com/goki/gi/window.go:1195 +0xc65
github.com/goki/gi.(*Window).EventLoop(0xc4201ff600)
/Users/thazy/go/src/github.com/goki/gi/window.go:960 +0xd5a
created by github.com/goki/gi.(*Window).GoStartEventLoop
/Users/thazy/go/src/github.com/goki/gi/window.go:438 +0x3f
thazy@macbookpro ~/go/src/github.com/goki/gi/examples/widgets$

ValueView for bitflags

e.g., TypeDecoration in FontStyle. for simplicity, only support case where the type name is used as the bitflag container, even though the "const" values defined are iota ordinal ints defining bit positions -- just requires that the const int value has enough capacity to represent all its bits.

Representation is just a line of checkbox's -- very easy. All the code is in place in kit to get / set the bits by name.

Completion needs option for case sensitivity

Currently case sensitive. Default should probably be insensitive.

Crashed while just hovering over README link (or very near) in the widget playpen window

goroutine 122 [running]:
github.com/goki/gi.(*SpanRender).FindWrapPosLR(0xc42d25da40, 0x44a86f00441aa000, 0x0)
/Users/thazy/go/src/github.com/goki/gi/text.go:395 +0x2cb
github.com/goki/gi.(*TextRender).LayoutStdLR(0xc429869840, 0xc429868f60, 0xc429868ed8, 0xc429868fe8, 0xc1ac0000441aa000, 0x0)
/Users/thazy/go/src/github.com/goki/gi/text.go:1327 +0x3d8
github.com/goki/gi.(*Label).Style2D(0xc429868c80)
/Users/thazy/go/src/github.com/goki/gi/label.go:173 +0x442
github.com/goki/gi.(*Node2DBase).Style2DTree.func1(0x461b820, 0xc429868c80, 0x1, 0x459aec0, 0xc429709400, 0x0)
/Users/thazy/go/src/github.com/goki/gi/node2d.go:469 +0x51
github.com/goki/ki.(*Node).FuncDownMeFirst(0xc429868c80, 0x1, 0x459aec0, 0xc429709400, 0x45cf548, 0xc42d743500)
/Users/thazy/go/src/github.com/goki/ki/node.go:998 +0x6b
github.com/goki/ki.(*Node).FuncDownMeFirst(0xc429709400, 0x1, 0x459aec0, 0xc429709400, 0x45cf548, 0xc42d743501)
/Users/thazy/go/src/github.com/goki/ki/node.go:1007 +0x15c
github.com/goki/gi.(*Node2DBase).Style2DTree(0xc429709400)
/Users/thazy/go/src/github.com/goki/gi/node2d.go:464 +0x82
github.com/goki/gi.PopupTooltip(0xc42ebc49b0, 0x41, 0x46d, 0x1a9, 0xc42042aa80, 0x45afcf3, 0x5, 0x18)
/Users/thazy/go/src/github.com/goki/gi/widget.go:463 +0x55c
github.com/goki/gi.(*Label).LabelEvents.func1(0x461b820, 0xc42016b900, 0x461f960, 0xc420424000, 0x5, 0x45410a0, 0xc42dc2e1b0)
/Users/thazy/go/src/github.com/goki/gi/label.go:220 +0x210
github.com/goki/gi.(*WinEventRecv).Call(0xc420748eb0, 0x461f960, 0xc420424000, 0x5, 0x45410a0, 0xc42dc2e1b0)
/Users/thazy/go/src/github.com/goki/gi/window.go:1081 +0x6d
github.com/goki/gi.(*Window).SendEventSignal(0xc420424000, 0x4614a80, 0xc42dc2e1b0, 0xc428e96101)
/Users/thazy/go/src/github.com/goki/gi/window.go:1195 +0xc65
github.com/goki/gi.(*Window).SendHoverEvent(0xc420424000, 0xc42b9dd1a0)
/Users/thazy/go/src/github.com/goki/gi/window.go:1277 +0xaf
github.com/goki/gi.(*Window).EventLoop.func2()
/Users/thazy/go/src/github.com/goki/gi/window.go:883 +0x5a
created by time.goFunc
/usr/local/Cellar/go/1.10.3/libexec/src/time/sleep.go:172 +0x44
thazy@macbookpro ~/go/src/github.com/goki/gi/examples/widgets$

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