IMGUI: Implement feature-parity with Qt GUI

[GPMueller]

General

• [ ] save the GUI layout and settings and read it back in on startup
• [x] dockable and floatable windows

Visualisation

• [x] take a screenshot and take screenshots of the entire chain
• [ ] camera (see, set, save and load), esp. FOV
• [x] bounding box
• [x] coordinate cross
• [ ] spin sphere
• [x] arrows
• [ ] surface (including z-shift for 2D surfaces)
• [x] isosurface
• [x] colormap: selection, phase for HSV-map, set cardinal (i.e. symmetry-) axis, invert theta/phi
• [x] light direction
• [ ] filter visualised spins by script (at least by "every N'th")

System controls

• [x] start/stop button
• [x] image selection and chain length setter
• [x] method and solver selection, with solver only available where applicable
• [ ] (maybe) camera reset buttons: x/y/z/default

Methods with full set of parameters

• [ ] LLG
• [ ] MC
• [ ] GNEB
• [ ] MMF
• [ ] EMA
• [ ] for each, apply to current image
• [ ] for each, apply to all images

Hamiltonian Parameters

• [ ] Heisenberg
• [ ] (on corresp. branch) Micromagnetic
• [ ] Gaussian
• [ ] for each, apply to current image
• [ ] for each, apply to all images

Spin configurations window

• [ ] Settings: add noise, position, rect./cylindrical/spherical border, inverted, atom type, pinning Note: if we can implement this as scriptable, that might be even better, as it would allow for ellipses etc.
• [x] Random, +z, -z
• [ ] Homogeneous: direction
• [ ] Domain wall (finally implement a proper one): width
• [ ] Spiral: angle, axis, q, q2, w.r.t. reciprocal lattice/real lattice/real space
• [ ] Skyrmion: radius, DW width, order, phase, up/down, R/L, achiral
• [x] Hopfion: radius, order
• [ ] Homogeneous transition: add noise, range
• [ ] Increase chain length with interpolated images

Keybindings

UI controls

• [x] F1-F4: Show help, settings, plots, log, ?
• [x] F5-F7: toggle dragging, defects, pinning modes
• [x] F10 or ctrl+f: toggle large visualisation (hide menu bar, requires functionality to restore it without keybinding)
• [x] F11 or ctrl+shift+f: toggle fullscreen
• [x] F12 or home: screenshot
• [x] i: toggle info-widgets
• [ ] (maybe)ctrl+shift+v: toggle visualisation

Camera controls

• [x] Left/right/scroll mouse
• [x] wasdqe
• [x] tfgh
• [x] xyz: set camera direction (ctrl or shift to invert)

Control simulations

• [x] space: start/stop
• [ ] (maybe) ctrl+m: cycle method
• [ ] (maybe) ctrl+s: cycle solver

Manipulate the current image

• [x] ctrl+r: randomize
• [x] ctrl+n: add noise
• [x] enter: insert last used configuration

Manipulate the chain

• [x] left/right arrows: switch between images
• [x] ctrl+x: cut image
• [x] ctrl+c: copy image
• [x] ctrl+v: paste image at current image
• [x] ctrl+left/right: insert image left/right of current image
• [x] delete: delete current image

Visualisation:

• [ ] +/-: increment/decrement N, visualising every N'th spin
• [ ] 1: regular visualisation mode
• [ ] 2: isosurface visualisation mode
• [ ] 3-5: x/y/z slab visualisation
• [ ] /: cycle visualisation mode
• [ ] ,/., move slab (shift to go faster)

Log

Viewer

• [ ] display gathered log text
• [ ] select minimum level
• [ ] filter senders: "all"-button, checkboxes
• [ ] filter by image index: "all"-checkbox, "from"-index "to"-index

Settings

• [ ] accept level
• [ ] print level
• [ ] output folder

Menu

File

• [ ] save/load input config file
• [ ] save/load spin configuration
• [ ] save/load chains
• [ ] save/load eigenmodes
• [ ] save energy per spin, energies of chain, interpolated energies of chain

Edit

• [x] cut/copy/paste, insert left/right, delete

Controls

• [x] start/stop
• [x] randomize
• [x] toggle dragging/defect/pinning modes

View

• [x] toggle widgets: info, settings, plots, configurations, geometry, visualisation, debug
• [x] toggle camera projection
• [ ] switch visualisation modes: regular, isosurface, slab x/y/z
• [ ] toggle: visualisation, larger visualisation (hide menu bar), fullscreen visualisation

Help

• [x] Keybindings
• [x] About

[GPMueller]

When this GUI is more stable, it could be placed as an alternative to the mobile GUI, on https://spirit-code.github.io and the current web-UI would simply be the mobile variant. Then, issues #12, #13, #14 and #15 could be closed.

Note, to be properly usable as a web-UI, it should support up-/downloading of images/chains. That would require some calls from C++ into the DOM to trigger what the current web-UI does to up-/download files.