Hi ,
I made this midi sequencer that allows you to create and modify notes on a piano-roll using keyboard and mouse.
I was not familiar with data structures but i came accross and recycled a drag-n-drop patch by lzr:
https://forum.pdpatchrepo.info/topic/9336/drag-n-drop-example
Maybe someone can help me with note deletion: is there a simple way to delete a scalar?
What I did for now is keeping track of pointers in a [coll].I can delete one selected note from the coll and reload everything.
I'm sure there's something easier to delete a pointer...
The patch needs a nice piano-roll design and has a few bugs ..
Tell me if it works ok for you,
Cheers,
Paulinho
drag-queen-sequencer.2.pd
1-save.txt
2-save.txt
map2.pd limit-help.pd limit.dll

Edit: added save and load system, and note creation with lists
Edit2: added map2 object
Edit3!: added limit object from maxlib library

hello paulinho, nice idea. It doesnt really work for me because i miss the objects limit once ans add2coll. do you know from which libraries they are? it can be helpful for others if you list the libraries that you use in your patch. perhaps you can make a background or a piano roll design with a data structures array, you can assign different colors to the elements of the array. but you can achieve the same result the way you did it with the canvas. your patch showed me that its possible to use pointers in a list, which was very useful. i dont know a better way to delete a single scalar, i was thinking if the text object can handle pointers, but still you will have to reload everything.

Hi Jona,
Thank you for the answer! Yes, I'm guilty of not keeping track of what libraries I use...
[limit] comes from maxlib and [once] from iemlib.
Anyway I edited my post: I added [limit], and rewrote the others objects as subpatches, so this should work now (for you at least).
I'll add the piano roll when I find the time.
Cheers