Richard, This design was done for one not to involve a lot of coding (App was free development but we get a cut of each sale and it has worked out well for us). Also there could be a reason to see the entire list but of course there are other ways to do this as not to hit the limit. As far as device memory is concerned I don't want to go to 2^31 but I am missing the cut by a couple thousand pixels. If we had 2^31 it would be up to the developer to keep the performance under control rather than apps breaking for 2 pixels over the limit.
Ralph DiMola IT Director Evergreen Information Services rdim...@evergreeninfo.net -----Original Message----- From: use-livecode [mailto:use-livecode-boun...@lists.runrev.com] On Behalf Of Richard Gaskin via use-livecode Sent: Tuesday, October 06, 2020 2:50 PM To: firstname.lastname@example.org Cc: Richard Gaskin Subject: Re: Canvas Limited to 32767 Glad it's not the funky mobile field workaround. That's such a horrible experience for developers that even the act of documenting it should have been a red flag to go back and refine the field buffering for the few cases where that put-it-in-a-group recommendation is actually needed. In your case, you have a huuuuuuge canvas, with users expected to scroll a region about 32 feet. That's a lot of scrolling. So in addition to the memory hit of buffering such a large region (32767 * 32767 * 4 + whatever other overhead comes into play with buffering), in most layouts it would be a usability impairment to ask users to keep scrolling that much. So maybe the team could switch the address from 32 to 64, but it still leave us with the question: - Would a user have that much RAM? - Would the user be able to use such a large canvas without acquiring RSI? ;) I don't know your layout, but I do know you, and you're not the type to make things hard for users, so I'm assuming there's something about this uncommonly-large scrolling that fits well with the app's requirements. But what we do know is no monitor can show it all, so the content is already effectively paged into view as-needed. Could the content paging be provided through some other UI? For example, if those controls fit into logical groupings, might different sets of them be placed into separate physical groups, perhaps accessed via tabs or a list? If it's truly necessary to have one vast plane to hold everything, could you handle paging internally while still providing the appearance of a contiguous group, similar to how the DataGrid does it? -- Richard Gaskin Fourth World Systems Ralph DiMola wrote: > Desktop and mobile. It's a scrolling group with many sub-groups each > with 1 or more fields. Sometimes the height of the main group > 32767. > > It's the result of a proximity search and in dense areas users are > getting hosed by this limit. Customer is screaming (but don't they > always). > > Ralph DiMola > IT Director -----Original Message----- From: use-livecode [mailto:use-livecode-bounces at lists.runrev.com] On Behalf Of Richard Gaskin via use-livecode Ralph DiMola wrote: > I just ran head first into this. Could someone explain why other than > moving from an int16 to an int32 this is such a challenge? This should > have been addressed during the refactoring of the engine. Is this for the weird recommended mobile workaround of putting a text field into a group just to have it scroll, or something else? -- Richard Gaskin Fourth World Systems _______________________________________________ use-livecode mailing list email@example.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list firstname.lastname@example.org Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode