Sortof? When developing HP Print Studio (http://www.hp.com/printstudio) we ran into this very same issue, but instead of photos we had multiple high resolution template assets that were only loaded when a printjob was requested. Given our use cases (most users don't have duplex printers) we didn't actually have to do multi-page printing so it's not quite what you're looking for, but the implementation might be similar. Basically what you want to create is a temporary sandbox object that exists on the displaylist (so content is rendered) but doesn't actually show anything (height and width = 0). Within that object you compose your print pages, paying special attention to keep track of how many images are currently loading using event listeners- in particular the load complete event. Once everything's signaled that it's ready you print, and in the meantime put up a progress bar popup of some kind. You might also be able to do delayed page instantiation, that is: create a page, wait for it to finish, add it to the print job, destroy it, move to the next page. This will give you better memory management overall (I think) since you don't have to load your entire photo album into ram before printing. Also, be careful about your image sizes: Images in memory suck up a LOT of ram.
Michael Krotscheck
Senior Developer
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________________________________
From: [email protected] [mailto:[EMAIL PROTECTED] On
Behalf Of Greg Hess
Sent: Tuesday, January 22, 2008 9:56 AM
To: [email protected]
Subject: [flexcoders] Photo print service
Hi All,
I have a requirement to build a photo print service in Flex. The EU will
view a gallery of image thumbnails (TileList) and have the option to
print one photo or the entire contents of the gallery. Photo print
options would be fit to page, 5x7, 8x10 ect.
Searching the web, viewing the docs and examples using the FlexPrintJob
from my understanding I can print images but they must be loaded (drawn)
in flex prior, is this true?
For a single photo print job this is fine as I can have the print page
display the selected image size prior to sending the print job. However,
I also want to allow the EU to select an entire photo folder and print
the contents all to say 5x7, is this possible?
Does anyone know of any examples or sample code?
Any comments much appreciated.
Thanks,
Greg
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