Horizontal Mode Scroll and Mode Loop

[schabau]

Hello,

a quick question.
I could use Mode Scroll or Mode Loop for a text with variable length, but I see that the text only scrolls vertically, making the function useless to me.

Have I simply missed it, or are Mode Scroll and Mode Loop actually only available vertically?

Best regards,
Detlef Paschke

[fvanroie]

These are the 6 modes for long text, you can pick the one that suits your needs best:

Animated vertical scrolling is not an option in LVGL7.

[schabau]

Hello,

I ran a test with the previous firmware and the result was the same.
After further testing, I also found the cause. I'm just wondering, is it a bug or an intended feature?

If there is sufficient free space for the text configured with "mode":"loop" or "mode":"scroll", the text scrolls vertically (upwards). If the text is longer than the available free space, it scrolls horizontally.

scoll (loop) vertical (still above)

{"id":40,"obj":"obj","x":40,"y":40,"w":380,"h":70,"bg_color":"#aaaaaa","text_font":26}
{"id":41,"obj":"label","parentid":40,"x":20,"y":20,"w":340,"h":30,"text":"Ich bin ein kleiner Blindtext.","mode":"loop"}

vertical.mp4

scoll (loop) horizontally

{"id":40,"obj":"obj","x":40,"y":40,"w":380,"h":70,"bg_color":"#aaaaaa","text_font":26}
{"id":41,"obj":"label","parentid":40,"x":20,"y":20,"w":340,"h":30,"text":"Ich bin ein kleiner Blindtext. Und zwar schon so lange ich denken kann.","mode":"loop"}

horizontal.mp4

This problem can certainly be circumvented with static text, but with dynamic text, this behavior is only a disadvantage. For example, I display the artist and title from a media player, and it would be better if the text didn't move at all when there's enough free space.

Best regards,
Detlef Paschke

[fvanroie]

I have never seen vertical scrolling before like that. No idea why it happens...
Try setting "mode":"loop" before x, y, w, h. That might help.

[schabau]

I tested "mode":"loop" in different positions. Unfortunately, the result was always the same.

{"id":40,"obj":"obj","x":40,"y":40,"w":380,"h":70,"bg_color":"#aaaaaa","text_font":26}
{"id":41,"mode":"loop","obj":"label","parentid":40,"x":20,"y":20,"w":340,"h":30,"text":"Ich bin ein kleiner Blindtext."}
{"id":50,"obj":"obj","x":40,"y":140,"w":380,"h":70,"bg_color":"#aaaaaa","text_font":26}
{"id":51,"mode":"loop","obj":"label","parentid":50,"x":20,"y":20,"w":340,"h":30,"text":"Ich bin ein kleiner Blindtext. Und zwar schon so lange ich denken kann."}

P1000049.mp4

[fvanroie]

What is the Orientation in the Display Settings on the device?

[schabau]

0 degrees