A easy to use tool to generator/design X11 based LV2 plugins.
Beside that XUiDesigner allow to generate and install GUI's for existing LV2 plugins, it support as well to generate LV2 plugins from scratch.
Special support is implemented for FAUST dsp files, which allow you to generate a LV2 plugin with X11 based UI by just drag'n'drop a FAUST dsp file into the XUiDesigner interface. This works now as well for MIDI capable faust modules.
In any way, you don't need to interference with any of the annoying LV2 implementations. XUiDesigner handle that all for you.
The very same is true when you like to implement your own dsp (C or C++) into a LV2 plugin. You could create the GUI interface, save the plugin bundle, and implement the needed calls to init, activate and run your dsp.
This release comes with a couple of Bug-fixes and aims to be nearly stable.
Here is a introduction Wiki entry to show the first steps Wiki
Note: Please download the attached XUIDesigner_0.6.tar.gz archive, as only that contain the needed git submodule ( old long time knowing bug on github) as the other files wont be able to build XUiDesigner for you.

New in this release:
Add support for faust synth files
Implement color setting per widget
Implement preselected Save option depending on how UI is generated
Implement support for slider images
Fix generate LV2 plug for faust file with numbers in name
ColorChooser: use global ctrl key to pick color from anywere
Improve log scale controllers
Work over all warnings from -Wextra -pedantic
Switch to use old style include path for LV2.h, fix reparent image issue
Avoid moving control widgets out of visible area
Fix issue with makefile genarator
Implement option to move all controllers of same type at once
Implement option to resize all controls of same type as once
Show LV2 plugins by name instead by uri
Add option to keep aspect ratio when resize a controller
Keep Editor window centered on Designer window
Implement option to allow the use of Controller Images for all contro…
Add Turtle view window to show generated ttl file
Fix issue #9 Please define the license
Fix issue #8 Makefile doesn't respect PREFIX
Fix issue #7 clang warnings
Fix install on FreeBSD

project page:

https://github.com/brummer10/XUiDesigner

download release:

https://github.com/brummer10/XUiDesigner

Enjoy anyway.