Re: Handlers for reading/writing image density info in PNG/JPEG?
Hi, Trevor. Check out http://splash21.com/downloads/sQuiRtGPL.zip There's a function in the library for creating PNG images and also the required functions for deflate compression and crc32 checksums - maybe those will help you getting started on the PNG side of things. :) On 12/06/2014 18:16, Trevor DeVore wrote: Hi everyone, Now that LiveCode has high-dpi support we can create images using export snapshot whose physical pixels dimensions are not the dimensions the image should be displayed at. For example, on an OS X retina computer with a screen pixel scale of 2 you could create an image that has 600x300 pixels of data but should be displayed at 300x150. Currently the engine does not provide a way to embed the pixel density information in the PNG/JPEG files that it can create. In addition, the engine cannot read pixel density information from images on the clipboard. This means we can't determine what dimensions the clipboard image should be displayed at. I'm wondering if anybody has already created handlers for reading and writing pixel density information to JPEG and PNG data that they would be willing to share? If not I'll take a look at the file formats and come up with something but if someone already did this that would be great. Thanks, ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Put a stack into a variable?
I'd like to put a stack into a variable, but without reading the stack file from disk. Is there a way to do this? I'm considering a scenario in which we have a standalone with the securityPermissions all turned off except network. At that point we have a app more secure than any browser. So far so good: we can download and run any stack with complete safety for the local system. In that environment I'd like to be able to let the user modify the stacks, and save those back to the server. I have the POST worked out with encryption and all that, so that much is good - for data within the stack, but not the stack itself. It would be very convenient in this scenario if I could somehow get the data that comprises the stack from memory and put it into a variable to send back to the server. Stephen Barncard has done some experiments with the copy command, but I'm unable to find a way to obtain the binary date from the clipboard contents when they contain LC objects. Also, it would be nice to be able to also get any substacks, but the copy command only copies the stack itself. Ideally what I'd have is the same as we get from doing this: put url tPathToSomeRemoteStack into tVar go stack tVar At that point, tVar contains the stack data - substacks and all, just as if it were read from disk. So now the trick is to find a way to get that from the current copy of the stack file in memory - any ideas? -- Richard Gaskin Fourth World LiveCode training and consulting: http://www.fourthworld.com Webzine for LiveCode developers: http://www.LiveCodeJournal.com Follow me on Twitter: http://twitter.com/FourthWorldSys ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Be, OpenDoc, P S and...
Remember OpenDoc? Publish and subscribe? :-) http://www.linkbackproject.org/ MacOSX-specific afaik. Sincerely, Wolfgang ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Put a stack into a variable?
In case anyone needs this, this works in a button but not in the Message Box, which is why I had missed this before: on mouseUp copy this stack put the clipboardData[objects] into tVar put tVar end mouseUp -- Richard Gaskin Fourth World Systems Software Design and Development for the Desktop, Mobile, and the Web ambassa...@fourthworld.comhttp://www.FourthWorld.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Put a stack into a variable?
How do you paste the stack? -- Best regards, Mark Schonewille Economy-x-Talk Consulting and Software Engineering Homepage: http://economy-x-talk.com Twitter: http://twitter.com/xtalkprogrammer KvK: 50277553 Installer Maker for LiveCode: http://qery.us/468 Buy my new book Programming LiveCode for the Real Beginner http://qery.us/3fi LiveCode on Facebook: https://www.facebook.com/groups/runrev/ On 6/13/2014 23:10, Richard Gaskin wrote: In case anyone needs this, this works in a button but not in the Message Box, which is why I had missed this before: on mouseUp copy this stack put the clipboardData[objects] into tVar put tVar end mouseUp ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Put a stack into a variable?
Mark Schonewille wrote: How do you paste the stack? If you use the copy command on a stack, the paste command will do the same as the clone command, duplicating the stack with a name prepended with Copy of. That said, it appears there's a difference in the binary data of a copied stack and a saved copy of the same stack file. For starters, LC 6.6.2 saved in the v5 format, but copied stacks have a 2700 header for the old 2.7 format. Bug maybe? But worse, even when I save a stack in the old 2.7 format, the data in the stack file still differs from the data in the clipboard is a surprisingly large number of ways, including an apparent replication of nearly the entire data in the clipboard, and with a different header than used in the stack file. So right now, my dream of being able to get a stack's data from RAM to save to a server without going to disk as an intermediary step is hosed. :( -- Richard Gaskin Fourth World Systems Software Design and Development for the Desktop, Mobile, and the Web ambassa...@fourthworld.comhttp://www.FourthWorld.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Put a stack into a variable?
On Fri, Jun 13, 2014 at 2:17 PM, Mark Schonewille m.schonewi...@economy-x-talk.com wrote: How do you paste the stack? It seems to me that I played around with this a while back (or did someone else play around on my musings?), and found that cards could be cut/moved/paste like this. -- Dr. Richard E. Hawkins, Esq. (702) 508-8462 ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Put a stack into a variable?
Hi, If you want to move cards within a stack, you can just set the number. -- Best regards, Mark Schonewille Economy-x-Talk Consulting and Software Engineering Homepage: http://economy-x-talk.com Twitter: http://twitter.com/xtalkprogrammer KvK: 50277553 Installer Maker for LiveCode: http://qery.us/468 Buy my new book Programming LiveCode for the Real Beginner http://qery.us/3fi LiveCode on Facebook: https://www.facebook.com/groups/runrev/ On 6/13/2014 23:59, Dr. Hawkins wrote: On Fri, Jun 13, 2014 at 2:17 PM, Mark Schonewille m.schonewi...@economy-x-talk.com wrote: How do you paste the stack? It seems to me that I played around with this a while back (or did someone else play around on my musings?), and found that cards could be cut/moved/paste like this. ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Put a stack into a variable?
On Fri, Jun 13, 2014 at 3:06 PM, Mark Schonewille m.schonewi...@economy-x-talk.com wrote: If you want to move cards within a stack, you can just set the number. My interest is actually in passing forms from my service to a compiled customer application. So if the Western District of Lincoln has it's own form, the customer could get it from my server, stash it to a local database, and it would get inserted on program run. Possibly even for saving customer generated forms to the local db to be inserted at runtime. -- Dr. Richard E. Hawkins, Esq. (702) 508-8462 ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Put a stack into a variable?
Hi, If you want to add a new form to an existing application, you can save the card with the form on your server and download and save it locally when the app starts. No database involved. If your app needs to get new form data from the server, that's even easier. Just download the data and save them in the local database. It is important to treat interface and data separately. -- Best regards, Mark Schonewille Economy-x-Talk Consulting and Software Engineering Homepage: http://economy-x-talk.com Twitter: http://twitter.com/xtalkprogrammer KvK: 50277553 Installer Maker for LiveCode: http://qery.us/468 Buy my new book Programming LiveCode for the Real Beginner http://qery.us/3fi LiveCode on Facebook: https://www.facebook.com/groups/runrev/ On 6/14/2014 00:09, Dr. Hawkins wrote: On Fri, Jun 13, 2014 at 3:06 PM, Mark Schonewille m.schonewi...@economy-x-talk.com wrote: If you want to move cards within a stack, you can just set the number. My interest is actually in passing forms from my service to a compiled customer application. So if the Western District of Lincoln has it's own form, the customer could get it from my server, stash it to a local database, and it would get inserted on program run. Possibly even for saving customer generated forms to the local db to be inserted at runtime. ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Put a stack into a variable?
It means that you can make it work. Go to url won't work, but you can download the data, set clipboarddata[objects] and paste. Not sure if it is a bug. It is if copied stacks lose properties that aren't part of the old format. Otherwise I'd call it a feature request. -- Best regards, Mark Schonewille Economy-x-Talk Consulting and Software Engineering Homepage: http://economy-x-talk.com Twitter: http://twitter.com/xtalkprogrammer KvK: 50277553 Installer Maker for LiveCode: http://qery.us/468 Buy my new book Programming LiveCode for the Real Beginner http://qery.us/3fi LiveCode on Facebook: https://www.facebook.com/groups/runrev/ On 6/13/2014 23:48, Richard Gaskin wrote: Mark Schonewille wrote: How do you paste the stack? If you use the copy command on a stack, the paste command will do the same as the clone command, duplicating the stack with a name prepended with Copy of. That said, it appears there's a difference in the binary data of a copied stack and a saved copy of the same stack file. For starters, LC 6.6.2 saved in the v5 format, but copied stacks have a 2700 header for the old 2.7 format. Bug maybe? But worse, even when I save a stack in the old 2.7 format, the data in the stack file still differs from the data in the clipboard is a surprisingly large number of ways, including an apparent replication of nearly the entire data in the clipboard, and with a different header than used in the stack file. So right now, my dream of being able to get a stack's data from RAM to save to a server without going to disk as an intermediary step is hosed. :( ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Put a stack into a variable?
This may seem off-topic, sort-of, but it might be simpler to transmit an exhaustive DESCRIPTION of the stack, and have their LiveCode create it all from scratch. Then it gets filled with content that is gotten by URL. Kind-of like how web-pages work. It's all text, no binaries. On Friday, June 13, 2014 7:00:08 PM, Mark Schonewille m.schonewi...@economy-x-talk.com wrote: It means that you can make it work. Go to url won't work, but you can download the data, set clipboarddata[objects] and paste. Not sure if it is a bug. It is if copied stacks lose properties that aren't part of the old format. Otherwise I'd call it a feature request. -- Best regards, Mark Schonewille Economy-x-Talk Consulting and Software Engineering Homepage: http://economy-x-talk.com Twitter: http://twitter.com/xtalkprogrammer KvK: 50277553 Installer Maker for LiveCode: http://qery.us/468 Buy my new book Programming LiveCode for the Real Beginner http://qery.us/3fi LiveCode on Facebook: https://www.facebook.com/groups/runrev/ On 6/13/2014 23:48, Richard Gaskin wrote: Mark Schonewille wrote: How do you paste the stack? If you use the copy command on a stack, the paste command will do the same as the clone command, duplicating the stack with a name prepended with Copy of. That said, it appears there's a difference in the binary data of a copied stack and a saved copy of the same stack file. For starters, LC 6.6.2 saved in the v5 format, but copied stacks have a 2700 header for the old 2.7 format. Bug maybe? But worse, even when I save a stack in the old 2.7 format, the data in the stack file still differs from the data in the clipboard is a surprisingly large number of ways, including an apparent replication of nearly the entire data in the clipboard, and with a different header than used in the stack file. So right now, my dream of being able to get a stack's data from RAM to save to a server without going to disk as an intermediary step is hosed. :( ___ use-livecode mailing list use-livecode@lists.runrev.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 use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Put a stack into a variable?
On Fri, Jun 13, 2014 at 3:42 PM, Mark Schonewille m.schonewi...@economy-x-talk.com wrote: If you want to add a new form to an existing application, you can save the card with the form on your server and download and save it locally when the app starts. No database involved. There is a local database for preferences, data, and so forth. Also, it is intrinsically networked. The installation at my office, for example, has the postgres server on my desk, which serves to itself, my paralegal, my laptop over vpn, a remote assistant via vpn, etc. When this is complete, it and every other central machine would also periodically update with the upstream root machine for updates (whether forms, dictionary of creditor additions, finding out if there's a new version, license keys, etc.). Anyway, for however many machines there are at a law office, they all need to have access to the same cards, and tho.se cards are going to come from an upstream postgreSQL server. Keeping them on the corporate db server (where they may well cache down to the local machines) seems the natural solution; otherwise I'm dealing with files syncing to the dbs. If your app needs to get new form data from the server, that's even easier. Just download the data and save them in the local database. It is important to treat interface and data separately. In this space, though, interface *is* data to some extent. There are something like 216 judicial districts in the US, and some attorneys regularly filing in up to a half dozen or so--and all issueing new forms at unpredictable intervals -- Dr. Richard E. Hawkins, Esq. (702) 508-8462 ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Book on Programming by Example
Alejandro Tejada wrote
Hi All,
Bookmark this webpage:
http://web.media.mit.edu/~lieber/Your-Wish/
to read this mind opening book:
I dunno about that Alejandro, I think I still prefer
main()
{
printf(hello world);
}
or, if using LC
on mouseUp
put hello world after msg
end mouseUp
Cheers,
Mark ;-)
--
View this message in context:
http://runtime-revolution.278305.n4.nabble.com/Book-on-Programming-by-Example-tp4680341p4680481.html
Sent from the Revolution - User mailing list archive at Nabble.com.
___
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Re: Put a stack into a variable?
If I can find it, somewhere around here I have a rudimentary vcs that used the copy stack method. Seemed to work well (I could pop stacks into an array and save the array to a file then reconstitute a stacks structure from the array at a later date) unfortunately, catastrophic hardware failure assisted me in losing track of some things. Think I have a backup here somewhere maybe and can dig it up if it would be helpful, but from what richard says, i'd be a little leery of the concept. On Fri, Jun 13, 2014 at 6:40 PM, Dr. Hawkins doch...@gmail.com wrote: On Fri, Jun 13, 2014 at 3:42 PM, Mark Schonewille m.schonewi...@economy-x-talk.com wrote: If you want to add a new form to an existing application, you can save the card with the form on your server and download and save it locally when the app starts. No database involved. There is a local database for preferences, data, and so forth. Also, it is intrinsically networked. The installation at my office, for example, has the postgres server on my desk, which serves to itself, my paralegal, my laptop over vpn, a remote assistant via vpn, etc. When this is complete, it and every other central machine would also periodically update with the upstream root machine for updates (whether forms, dictionary of creditor additions, finding out if there's a new version, license keys, etc.). Anyway, for however many machines there are at a law office, they all need to have access to the same cards, and tho.se cards are going to come from an upstream postgreSQL server. Keeping them on the corporate db server (where they may well cache down to the local machines) seems the natural solution; otherwise I'm dealing with files syncing to the dbs. If your app needs to get new form data from the server, that's even easier. Just download the data and save them in the local database. It is important to treat interface and data separately. In this space, though, interface *is* data to some extent. There are something like 216 judicial districts in the US, and some attorneys regularly filing in up to a half dozen or so--and all issueing new forms at unpredictable intervals -- Dr. Richard E. Hawkins, Esq. (702) 508-8462 ___ use-livecode mailing list use-livecode@lists.runrev.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 use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
