M5CoreS3: simulate BtnA, BtnB and BtnC

[felmue]

by sacrificing 20 pixel at the bottom of the screen.

Notes:

• disabled by default
• can be enabled by defining M5CORES3_SIMULATE_BTNABC

[lovyan03]

Hello, @felmue

Sorry for keeping you waiting so long.
I recently updated the develop branch.
The bottom edge of the screen can now be used as a button area.

 M5.begin();

  // set by pixel.
  M5.setTouchButtonHeight(120);
// or
  // set by ratio (25 = 10% , 127 = 50% , 255 = 100%)
  M5.setTouchButtonHeightByRatio(128);

I plan to release this in the next update, but we'd love to hear your thoughts on it.

[felmue]

Hello @lovyan03

no worries.

I verified your changes with M5PaperS3 and M5CoreS3 and the three simulated buttons work great for me.

The only caveat I see is that the buttons do not follow the display rotation. But that is maybe not needed or even undesired. Not sure.

Thanks
Felix

[lovyan03]

We struggled a lot with whether or not to follow display rotation. In fact, one of the main reasons this feature was not implemented for so long was because we were unable to determine how to handle the issue.
However, in reality, many users are already using the product and are finding it inconvenient.
Taking too much time to make a decision would slow down the development speed of the M5 product, so we decided to provide something that would definitely improve the situation with a simple implementation, even if it had some limitations.