Roman Thilenius

there is a jit.cellblock showing a list of items. 

its vertical scrollbar is turned on in order to enable scrolling - but it is hidden, i.e. covered by other objects or not included in a bpatcher view.

1.) that is all working fine as long as the user has a mouse with scrollwheel. but what if not?

2.) and how can you defocus the mousewheel from the bottom-right-most cellblock?


the following scenario: 

there is a jit.cellblock showing a list of items. 

its vertical scrollbar is turned on in order to enable scrolling - but it is hidden, i.e. covered by other objects or not included in a bpatcher view.

1.) that is all working fine as long as the user has a mouse with scrollwheel. but what if not?

2.) and how can you defocus the mousewheel from the bottom-right-most cellblock?



the following scenario: 

there is a jit.cellblock showing a list of items. 

its vertical scrollbar is turned on in order to enable scroll

scrolling-a-cellblock-programmatically

I think the strategy would depend on what one should be doing with the cellblock.

 to display it's contents, one can scroll using sync messages to right inlet.

here cellblock with ignoreclick set, no selecting or editing.

no mousewheel response, scroll using the number

scrolling works even if scrollbar is turned off, at least in max 8

Screen Shot 2021-08-24 at 10.53.52.png

4 arrow keys work only if selmode > 0 to select/scroll

automouse 1 attribute allows scrolling while selecting cells

if selected cell color is same as background, one would not see that selecting is taking place

I think the strategy would depend on what one should be doing with the cellblock.
if it is only to display it's contents, one can scroll using sync messages to right inlet.
here cellblock with ignoreclick set, no selecting or editing.
no mousewheel response, scroll using the number
scrolling works even if scrollbar is turned off, at least in max 8


4 arrow keys work only if selmode > 0 to select/scroll
automouse 1 attribute allows scrolling while selecting cells
if selected cell color is same as background, one would not see that selecting is taking place

i use it like a menu. the user selects and then clicks on his choice, triggering the usual output.

you are right in max 8 the scrolling always works - and the defocussing, too. i could swear yesterday it did not work (in max 4 the leftmost cellblock scrolls when the mouse is somewhere else in the mother patch and yesterday max 8 did that too.)

scrolling using click-drag is out of the question. the haptic sucks.

i will now try to use the sync message to implement an "up" and "down" GUI elements for the "no scrollwheel" situation, that sounds promising (and should be available through all versions)


i use it like a menu. the user selects and then clicks on his choice, triggering the usual output.

you are right in max 8 the scrolling always works - and the defocussing, too. i could swear yesterday it did not work (in max 4 the leftmost cellblock scrolls when the mouse is somewhere else in the mother patch and yesterday max 8 did that too.)

scrolling using click-drag is out of the question. the haptic sucks.

i will now try to use the sync message to implement an "up" and "down" GUI elements for the "no scrollwheel" situation, that sounds promising (and should be available through all versions)


thanks for sharing such a valuable information. comments by 

thanks for sharing such a valuable information. comments by https://attir.co.uk 

scrolling a cellblock... programmatically?