Port to JUCE book of work

[baconpaul]

This issue is @baconpaul 's book of work for the port to juce / creation of Surge XT. I locked it to keep myself organized. If you are working on or trying SXT and find a new bug, please just open an issue with "Surge XT" in the subject. This is really just pauls opaque list for himself and a place for him to hang commits.

If you want to try surge xt then

1. You probably don't, but
2. cmake -Bbuildxt -DBUILD_SURGE_JUCE_PLUGINS=True
3. cmake --build buildxt --config Debug --target surge-xt_All. Depending on your OS and generator you may also want to add --parallel as an option. Definitely on Linux!
4. Standalone executable, VST3, AU (Mac only) and (if you have VST2SDK_DIR set) VST2 will appear in buildxt\surge-xt_Artefacts

• [x] Code
  • [x] TARGET_JUCE, TARGET_JUCE_UI, etc... what are these? Lets make a TARGET_SURGE_XT (but probably after 19)
• [ ] Distribution / Platforms
  • [ ] Do at least one PI build
  • [x] All the settings https://github.com/juce-framework/JUCE/blob/master/docs/CMake%20API.md for plugin type etc
• [ ] Things which aren't complete
  • [ ] All the unimpls
  • [ ] CTextEdit centering background etc and focus handling
  • [x] Gradients and MSEG Gradient Fill
  • [ ] Line Styles and MSEG axes / ticks
  • [x] Startup zoom not set properly
  • [x] Drag n drop if anything
  • [x] Multi-resolution PNG. (SVG is all fine; PNG always just picks the 100)
  • [x] All the rest of user interactions
• [ ] Things that don't work and I don't know why yet (:zap: means it core dumps)
  • [x] Miniedit at wrong spot?
  • [x] Preset jog button not working - why?
  • [x] VU Meter draws a bit wrong - no black around the bands. Why?
  • [x] Unhover on Menu button (and probably others) doesn't happen.
  • [x] Deep SubMenus don't wor. Look at the explicit learn for instance
  • [x] Midi learn overlay eats clicks
  • [ ] :zap: linux zoom +/- 10% crashes
  • [ ] :zap: Fx Neuron crashes right away in JUCE version (#4035 fixes this but that fix shouldn’t be needed - definitely have an ordering bug in the menu callback somehow)
    • [ ] Mysteries
    • [x] Why do I need that 1.25 in CScalabeBitmap branch
    • [ ] Things I would like to add
  • [x] Pure-play JUCE widget as a plugin. (Waveshaper Flex!)
  • [ ] https://docs.juce.com/master/classTooltipWindow.html#details
• [x] Memory / Lifecycle
  • [x] Leak option menus now the leak detector is roughed out and has been applied a bit.
  • [x] Rebuild check on rebuilt widgets / leak detector / lifecycle detector
  • [x] Those JUCE leaks in debug mode.
  • [x] The gradient hovers on buttons in addOverlay leak. Make sure that they know to forget and have ownership. They don't leak in VSTGUI quite the same but probably do a little.!
    • [x] DAW integration (expand this)
  • [x] Reverse typein and stuff
  • [x] Juce Params for macros
  • [x] https://docs.juce.com/master/classAudioProcessorParameter.html#aae70f0cce34b664206323bc277096ddc
  • [x] VST3 plugin menus?
  • [x] Groups (https://forum.juce.com/t/plug-in-parameter-groups/29409)
  • [x] The RangedParameter way I'm using it, setting everything to 0,1 etc... can all be better if I know how to do type invalidation in JUCE

[baconpaul]

This issue has outlived its usefullness. I just fragged it into sub-issues now.