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Updating the view/refreshing an image [message #664482]

Sat, 09 April 2011 13:29

Hans Missing name

Messages: 14
Registered: August 2010

Junior Member

Hi,

I hope you can help me. Following situtation: I'm loading a view based on a composite. In its constructor im creating dynamically a jfree chart image and saves it temporally on the hard disk. Then I'm loading the image to assign it to a label by calling setImage.
Up to this point everything works fine but when I want to load and assign an other image to that label it doesn't refresh or redraw. I see the old one. I want to assign this new image to the label when someone clicks on a button in the view...

Does anyone know where my problem is? It is not possible to add/change elements in an existing/already created view?

Best regards
mangaka

[Updated on: Sun, 10 April 2011 13:21]

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Re: Updating the view/refreshing an image [message #664512 is a reply to message #664482]

Sun, 10 April 2011 15:48

Hans Missing name

Messages: 14
Registered: August 2010

Junior Member

I found a clue..
when I use an other name for the new image it will be correctly loaded. therefore the problem is the identical name of the image. rap does not realise that the image was modified and has to be changed. it sends the browser/client the old one when he requests the image.

does anyhone know how to fix this problem?

ps: I'm using Graphics.getImage(String, InputStream) to load the image...

[Updated on: Sun, 10 April 2011 16:04]

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Re: Updating the view/refreshing an image [message #664527 is a reply to message #664512]

Sun, 10 April 2011 21:04

Ralf Sternberg

Messages: 1313
Registered: July 2009

Senior Member

Hi,

this is a known limitation of the resource manager. Currently, the only
workaround is to change the name of the image that is registered, e.g. by
appending a hash or timestamp. Feel free to open a bug for it.

Best regards, Ralf

--
Ralf Sternberg

Twitter: @EclipseRAP
Blog: http://eclipsesource.com/blogs/

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