lv_examples: Add Kconfig file for menuconfig interface and add demo widgets configuration in it.

[C47D]

Here´s the menuconfig interface so far, I'm thinking on letting the user choose which demo or example to run, what do you think?

[kisvegabor]

I rarely use menuconfig so can't really decide if it's a good practice or not. ☹️

I suppose selecting the default demo still makes possible to add demo/code by hand. If so I think it won't harm anything besides the extra maintenance.

[embeddedt]

I agree with @kisvegabor.

[embeddedt]

Sorry; I hit the close button by accident. Reopened.

[C47D]

I agree, I thought this repo is to showcase LVGL in esp32, maybe not to be used as a project template, that's what the separated components are being created for, the user would include which they need. I will try to add the examples later this week, let's see how that plays out.

[C47D]

@embeddedt @kisvegabor

Current lv_examples menuconfig (not definitive), missing: widget and get started examples. It need some cosmetic changes, I don't personally like having all the available options always enabled. Will work on it this weekend.

What do you think?

[kisvegabor]

@C47D

Only the DEMOs can be enabled/disabled from the config. E.g. lv_ex_style_1 has no define guards. It's because these examples are usually short and small so I think it's not worth the effort to enable/disable them one by one. So I think it's enough to have options already present in lv_ex_conf.h

[C47D]

There's only two options on the lv_ex_config file, I will check it again tho.

[C47D]

@kisvegabor I've removed the style examples from the menuconfig interface. It does look like this now:

[kisvegabor]

In lv_ex_conf_templ.h there are some more options.

I think it works well if you select a demo to rum, it will enable it the demo itself as well.
Do you plan to make examples selectable as well? I mean not to enable e.g. lv_ex_btn_1() just select it to run automatically.

[C47D]

The config file you point out is newer, I would need to update lv_examples.

Can we merge this as first implementation and then update both lv_examples and lvgl. What do you think?

[kisvegabor]

I meant e.g. for LV_EXAMPLES_DEMO_BENCHMARK you don't enable LV_DEMO_BENCHMARK in lv_ex_conf.h.

[C47D]

Because the lv_ex_config file doesn't have that option because it's old, we would need to update lv_examples to have it.

So I wanted to merge this, do a release of the repo, and then update both lv_examples and lvgl.

[kisvegabor]

So I wanted to merge this, do a release of the repo, and then update both lv_examples and lvgl.

Alright!

[C47D]

Ok, I will merge this and another PR (#195), then do a release and then update both lvgl and lv_examples. Then update both config files and Kconfig files, if everything is working we could then consider adding the Kconfig file to the main repos.

[C47D]

@kisvegabor is right, will open a new PR about this once lv_examples gets updated. Closing this.