Creating thumbnails [view]

Good Day, Fountain of REBOL Knowledge, The following script reads a big jpeg file and displays it on the screen as a 96x96 thumbnail. When I hit the button, it saves that image to disk as a 96x96 png thumbnail. I mention this to show that the idea can be done (as of course you know). _*_*_* REBOL [ ] view layout [ thumbnail: image 96x96 %ships_1024.jpg button 300x25 "save/png to-image thumbnail" [save/png %shipspng.png to-image thumbnail alert "done"] ] _*__*_ Now, I want to do the same thing, but not in an interactive manner, not with a screen. I want a script that will automatically make a bunch of thumbnails for a bunch of pictures without any human intervention. Can I do that? It seems I can't use the "image" key word outside of a layout. If I use "to-image," I don't see how I can specify the size. I know how to find all the files in a directory, and how to loop through them, etc, but I am missing that piece to read a jpeg file, turn it into a thumbnail, and write it, outside of a VIEW layout. I have looked at the cookbook example "HTML Thumbnail Photo Directory Maker," but that also uses an image within a layout. Thank you. Steven White City of Bloomington 1800 W Old Shakopee Rd Bloomington MN 55431-3096 USA 952-563-4882 (voice) 952-563-4672 (fax) [steven--white--ci--bloomington--mn--us]

On 23-Apr-04, Steven White wrote:

> Good Day, Fountain of REBOL Knowledge, > The following script reads a big jpeg file and displays it on the > that also uses an image within a layout. > Thank you.

Hi Steve, If your JPEG's come from a digital camera and you are happy with 160x120 EXIF thumbnails, then take a look at the EXIF scripts by Piotr Gapinski (http://www.rebol.org/cgi-bin/cgiwrap/rebol/search.r?find=exif). Regards, Ashley

use to-image outside of the ui ;-) here is a complete app which has external path specs, so that you don't have to fiddle in the code to adapt it to different paths just change the apps and it will do its magic on the directorie's content. of course, the directories should be different, otherwise you'll end up with both thumbnails and source image in the dir, and running the application will duplicate your thumbnails with interesting filenames ;-) ;---------------------------------------------- rebol [] in-dir: %/d/imgsrc/ out-dir: %/d/imgdest/ imgs: read in-dir foreach file imgs [ filename: replace copy file %.jpg %_thumbnail.png in-path: append copy in-dir file out-path: append copy out-dir filename save/png out-path to-image layout [ origin 0x0 image 96x96 in-path ] ] ;-------------------------------------------------- -MAx --- You can either be part of the problem or part of the solution, but in the end, being part of the problem is much more fun.