demo request: storing multiple docker/viewport layouts in imgui.ini

[dgm3333]

The issue of how to store and retrieve multiple layouts has been discussed a bit, but I think a good example would be extremely valuable, and would promote use of docker/viewports much more broadly, and extend your docking example. This currently has "restore default layout" - which is obviously already a good start on this.

This would mean not only would the positions of all the windows be saved, but their current state (visible or not) on close or at a specific saved/restore point.

This has been discussed a few times, but otherwise not comprehensively managed
ocornut/imgui#4033
ocornut/imgui#2564
pthom/hello_imgui#52

[pthom]

@dgm3333

I recently added an interesting feature: the possibility to define several layouts and switch between them.

Each layout is stored in a DockingParams, and:

• can contain a different list of windows (vector<DockableWindow>)
• has a different spatial layout (vector<DockingSplit>)
• remembers and restores the user modifications to this given layout
• remembers and restores the list of Opened windows

See this video demo and explanation

Also, see the corresponding code:

• C++
• Python