Could you give some code? Thanks W dniu czwartek, 15 sierpnia 2013 01:05:30 UTC+2 użytkownik Steve C napisał: > > Thanks for asking that question - it led me to a solution to a problem > that I've had, which is "skinning" an app using different versions of > resources loaded asynchronously from the war directory as opposed to coded > into a ClientBundle. > > I created a client bundle extending SimplePager.Resources, with sources > that reference dummy placeholder images in my source tree, then created a > separate class implementing that interface. In the constructor I populate > it from the GWT.created bundle (since some of the resources aren't dynamic, > and I can just delegate through to them) but then load my dynamic images > into Image widgets. Those, in turn, are each given to an implementation of > ImageResource that holds an Image widget, and obtains the width, height, > url, etc. from it (wasn't sure what the heck to do with getName, or how to > implement isAnimated). Those are the return values from the associated > methods in my resource object. And then I give that to the pager > constructor. > > The asychronicity turned out to be a bear, since I'm using a LoadHandler > for each image to know when the size values will be available, and that > won't do anything unless I actually add the Image to the document, so I had > to create a hidden div to put them into. I haven't yet tested if that's > necessary with a data: url. And a lot of layout tasks had to be pushed off > into a callback. > > The concept works, but I suspect that unless I make all versions of a > particular image the same size, I can't use any CssResource tricks based on > the image. That's probably not a big deal - since the variations generally > would all be the same size. Also, I don't think that there's any existing > Resource class in the API with CSS resources that depend on the images, so > it would only be an issue with custom resource classes. > > On Wednesday, August 14, 2013 3:42:34 AM UTC-4, df wrote: >> >> Hello. Is There any way to create ImageResource dynamically? For example >> : I get images from WebService in base64 format and I don't have >> opportunity to have all images on the server at compile time. Can i cast >> Images to ImageResource? Or is there any other solution? >> Thanks for help. >> >
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