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peterhinch / micropython-font-to-py

A Python 3 utility to convert fonts to Python source capable of being frozen as bytecode
MIT License
368 stars 67 forks source link

Remove/clean string from display, allow better positioning #4

Closed BoKKeR closed 6 years ago

BoKKeR commented 6 years ago

Hey, I do like the project but if I am right there are few things that are missing. I don't see any way to remove the text from the screen. This way new text prints under the old one. before I could use display.fill(0) but it does not affect the Writer. Another issue I am facing is actually counting out the text size. For example, putting text in the corner should be done as font.getsize("string") and this could be divided from the width of the display thus placing the text in the corner no matter how long the string gets.

peterhinch commented 6 years ago

The Writer class is minimal by design. From my point of view the project's aim was to provide a means of storing fonts in flash memory with a minimal RAM footprint and to provide an open-source means of producing the files. The Writer was intended as a minimal working proof of concept.

A realistic font rendering class capable of working with framebuf would be a great contribution. I'd rather keep Writer as a simple demonstrator but an improved version could be subclassed from it or developed independently. Another contributor attempted this, including such features as rotation. Unfortunately he wanted to change the font file format. I'd need an extremely good reason to do this: there are existing drivers which use the format with their own rendering code - notably for types of display hardware which maintain their own frame buffer.

Feel free to contribute or to develop it in your own repo. I'll happily link to any working implementation.

BoKKeR commented 6 years ago

I managed to get these things working but I wont be putting it on GitHub as the solution is rather ugly

peterhinch commented 6 years ago

Fair enough. I'll close this for now.