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lexus2k / ssd1306

Driver for SSD1306, SSD1331, SSD1351, IL9163, ILI9341, ST7735, PCD8544, Nokia 5110 displays running on Arduino/ESP32/Linux (Rasperry) platforms
MIT License
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EOL #4

Closed scargill closed 6 years ago

scargill commented 6 years ago

Not an issue.. but I've pulled your code as I need an EOL facility... if you add that to yours - I'll scrap mine rather than keep 2.

In my minor change - I've added an optional parameter - see ERASE_EOL

ssd1306_charF6x8(0, 2, "Test",STYLE_NORMAL,ERASE_EOL);

lexus2k commented 6 years ago

Hi Peter,

could you please describe scenario of using ERASE_EOL in details?

scargill commented 6 years ago

Well had I changed the code to globally store X I could have made a separate erase_to_eol() command... as it is, I added it to the text drawing routine...

So simple enough - you have a display - let's say line 2 has "Voltage reading 230.3v" - next time around - without wanting to wipe the screen, it might say "Voltage reading 99.4v" - you obviously end up with an extra character at the end - as this string is shorter. You can get around that with a load of formatting but it's a lot easier simply to have an erase to end of line.

scargill commented 6 years ago

Well, the canvas version appears to work well, but the clearblock function is not available therein so my clear to EOL becomes a little more difficult :-)

lexus2k commented 6 years ago

Hi Peter Could you please check the latest committed sources. I've added new API function, which can be suitable for your needs: ssd1306_charF6x8_eol(left, y, ch[], style, right). The last parameter - right - is just what you need, and it can be set also to any value different from last right position on the display.

lexus2k commented 6 years ago

Any news?

scargill commented 6 years ago

Hi thanks for that, not had a chance to check due to travel but this is definitely a worthwhile addition to the code!