I can't vouch for this program, I just looked at it for the first time, but check out HTTP2IMmageat www.sysimage.com. It's interesting because it has a command-line component. Assuming you are on Windows of course, although I'm sure similar programs can be found for your favorite *nix variant if you need it, this might be an answer...
You could write the results of the JSP out to a file (not sure the best way to do this), then shell out to this program to generate the image, then do whatever you want with it. I'm oversimplifying things of course, but the idea is what's important.
Alternatively, assuming still that you are on Windows, you could always make use of IE itself... You'd have to look around, but one of the features I remember is being able to ask the render engine to render to an off-screen buffer, and you should have little difficulty getting a proper image from that, assuming you made it that far :) Me personally, I'd go with something like HTTP2IMmage... My Windows-specific programming these days is limited to PocketPC development, not sure I'd want to get into anything too deep on the desktop these days.
-- Frank W. Zammetti Founder and Chief Software Architect Omnytex Technologies http://www.omnytex.com
[EMAIL PROTECTED] wrote:
Since we are on this topic, any ideas on how to build images from a webpage which is downloaded automatically into a database or a file system. Eg would be google desktop style, where a thumbnail appears of a html page beside a search item.
Regards, Amin
Just carry the path of the file, not the image itself. When you submit the form you can get at that information (I believe, if not just grab it via JavaScript on the form submission and stick it in a hidden field). Then, when yout next JSP executes, you have the path to the file and you construct the img path:
<img src="<%="file://"+myForm.getPathToImageUserSelected()$>">
Something like that. The basic idea is that the JSP you send back as a result of the form submission is displaying the image from the user's PC, not your server. You just need to append the file:// part of the image's URI at some point.
-- Frank W. Zammetti Founder and Chief Software Architect Omnytex Technologies http://www.omnytex.com
uma.k wrote:
Hi Frank, Thanks for the reply. Your solution works good if I have to show preview in the same page but I what if I need to show preview in the next JSP? How do I carry the values/images?
Uma
-----Original Message----- From: Frank W. Zammetti [mailto:[EMAIL PROTECTED] Sent: Friday, December 17, 2004 10:44 PM To: Struts Users Mailing List Subject: Re: Preview of an Image and text
You might consider doing it all on the client...
<html> <head> <title>test</title> <script> function preview() { lyrPreview.innerHTML = ""; lyrPreview.innerHTML += "Some message text...<br>"; lyrPreview.innerHTML += "<img src=\"file://" + theForm.theFile.value + "\">"; } </script> </head> <body> Select file, then click button to preview:<br> <form name="theForm"> <input type="file" name="theFile"> <input type="button" onClick="preview();" value="Preview message"> </form> <br><br> <u>Preview:</u><br><br> <span id="lyrPreview"></span> </body> </html>
Works on IE, can't say whether it does on anything else. Of course, this will only work if you have enough information to construct the complete preview on the client at that point, but you could alternatively submit the form, then in the reply construct the file:// reference to the image as I've done above. That would probably give you the best of both worlds, and also remove any cross-browser concerns. But, if you can do it without touching the server, so much the better I figure.
-- Frank W. Zammetti Founder and Chief Software Architect Omnytex Technologies http://www.omnytex.com
uma.k wrote:
Hi, I have a form where the user is given the option to select a file to upload(normally gif or jpg) before the user submits the file to the
server,
I wanted to show him a preview of his message and image.
How do I do that? Where do I store the image temporarly?
Any solutions?
Uma
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