ESP 32 Font Problem - Githubissues

ImpulseAdventure / GUIslice

GUIslice drag & drop embedded GUI in C for touchscreen TFT on Arduino, Raspberry Pi, ARM, ESP8266 / ESP32 / M5stack using Adafruit-GFX / TFT_eSPI / UTFT / SDL

https://www.impulseadventure.com/elec/guislice-gui.html

MIT License

1.16k stars 209 forks source link

ESP 32 Font Problem #174

Closed feendrache closed 4 years ago

feendrache commented 4 years ago

Describe the bug

Okey, i changed my display from an elegoo to an spi one and need to rebuild my GUI since the old one won't work in the esp32 with the spi display
My Problem now: only the BuiltinFonts are working, no displaying of text on the display when i select one of the other fonts

Device hardware

MCU: ESP32
Display with link: 2.8'' SPi Display with touch, red one generic
GUIslice config selected: esp-tftespi-default-xpt2046_int

Please confirm whether:

Display works correctly with standalone display driver library examples (eg. TFT_eSPI graphicstest, Adafruit graphicstest, etc.) without GUIslice: yes
Touch works correctly with standalone touch library examples without GUIslice: yes

Expected behavior

Well i wanted to use other fonts.. took me some time to realise that this was the problem

Initialization messages

no errors

ImpulseAdventure commented 4 years ago

Hi @feendrache --

Can you confirm an example of a font that you are trying to use? (ie. is it included within the TFT_eSPI/Fonts/GFXFF directory?)

If so, can you confirm that the GUIslice example ex04 works using the TFT_eSPI freefonts? (we would like to test it first without the Builder)

/examples/arduino/ex04_ard_ctrls.ino
Uncomment the #define USE_EXTRA_FONTS line
Does the "Quit" button now use the larger font? (it should use FreeSansBold12pt7b)

thanks

feendrache commented 4 years ago

Yeah that'S working just fine

ImpulseAdventure commented 4 years ago

If you are seeing ex04 work fine with TFT_eSPI custom fonts then the problem is likely that the Builder is not set to TFT_eSPI output mode. The TFT_eSPI display library handles fonts differently from other libraries, so the Builder needs to be in a special mode to generate the correct font initialization.

Please check the setting in the Builder's Edit -> Options -> Target Platform; it should be set to arduino TFT_eSPI. Does this help?

I'm not sure if we documented this visibly so perhaps a wiki documentation update might be necessary.

ImpulseAdventure commented 4 years ago

Closing as I expect that the above Builder option will address the original issue.