Flipped X and Y coordinates

[Tobim6]

Describe the bug

Adafruit FT6206 library after remapping coordinates to be flipped so 320 that the library thinks I am touching is actually 0 and 480 that the library thinks is actually 0 I am trying to find a way to remap those values on GUISlice but I couldn't find any way to do it

Device hardware

• MCU: ESP32
• Display with link: https://www.laskakit.cz/laskakit-espd-35-esp32-3-5-tft-ili9488-touch/
• GUIslice config selected: esp-tftespi-default-ft6206.h

Checklist to try first

Most display/touch issues can be identified by working through the steps in the Configuring GUIslice guide.

Please confirm whether:

• Display works correctly with standalone display driver library examples (eg. TFT_eSPI graphicstest, Adafruit graphicstest, etc.) without GUIslice: Display works with TFT_eSPI and GUISlice just fine
• *Touch works correctly with standalone touch library examples without GUIslice: Adafruit FT6206 library after remapping coordinates to be flipped so 320 that the library thinks I am touching is actually 0 and 480 that the library thinks is actually 0

Expected behavior

Option to flip X or Y coordinates

Initialization messages

Additional info

[Pconti31]

@Tobim6 Yes, I don't either. Some of Calvin's (@ImpulseAdventure ) other touch driver configs support flip with
#define ADATOUCH_REMAP_YX 1 but not this one.

Looking inside GUIslice_drv_tft_espi.cpp we see:

  // ----------------------------------------------------------------
  #elif defined(DRV_TOUCH_ADA_FT6206)

  if (m_touch.touched()) {
    TS_Point ptTouch = m_touch.getPoint();
    // FT6206 coordinates appear to have flipped both axes vs other controllers
    // - Confirmed by comments in Adafruit_FT6206 library example code:
    //   "rotate coordinate system. flip it around to match the screen."
    m_nLastRawX = nDispOutMaxX-ptTouch.x;
    m_nLastRawY = nDispOutMaxY-ptTouch.y;
    m_nLastRawPress = 255;  // Select arbitrary non-zero value
    m_bLastTouched = true;
    bValid = true;

  } else {
    if (!m_bLastTouched) {
      // Wasn't touched before; do nothing
    } else {
      // Touch release
      // Indicate old coordinate but with pressure=0
      m_nLastRawPress = 0;
      m_bLastTouched = false;
      bValid = true;
    }
  }

You might try commenting out

//    m_nLastRawX = nDispOutMaxX-ptTouch.x;
//    m_nLastRawY = nDispOutMaxY-ptTouch.y;
m_nLastRawX = ptTouch.x;
m_nLastRawY = ptTouch.y;

Paul--

[ilka-schulz]

I had the same problem (only X-axis touch was flipped, using AdafruitGfx with ILI9341 and XPT2046) and solved it with this line at the end of my GUI initialization:

m_gui.nFlipX = !m_gui.nFlipX;