Re: Explain difference between using <g:Image> or a <div> (in UI Binder) when using GWT sprite ?

Hello Thomas,

Please, you say this : 

If your 'sprite_MS' is already "sprited", then don't use an ImageResource; use a DataResource instead, and use either Image#setUrlAndVisibleRect() or a "normal" CSS class (not @sprite) to display it. 

#1

- Can you explain the reason why I should use a DataResource when my image ('sprite_MS') is sprited ? ... Because I found a solution that works perfectly with  ImageResource + @sprite.

#2

- Can you give an example with the normal CSS class (not @sprite) because I did not succeed to have the expected result that is to diplay a piece of the  sprite_MS image (DataResource in this case).

So I have this :

@Source("./common/sprites_MS.png")

@ImageOptions(preventInlining = true)

DataResource sprites_MS();

And I do not want to use this solution... :

       logo.setUrlAndVisibleRect(CR.COMMON_RES_INSTANCE.sprites_MS().getSafeUri(), 0, 0, 154, 60); 

....because I need to be able to change my sprites_MS.png and if so it will change all the coordinates of the elements and I prefers to modify their background-positions in just one file (a css file) rather than looking for each call of setUrlAndVisibleRect() in different files.)

#3 

Another question, not related to the previous ones but related to images, is that my website is a yahoo_movie-LIKE (www.mananaseguro.com). I will need to display a lot of images (all the week's posters). So what strategy should I use to load and display these images ? 

My current vision is :

- The layout of the image is a GRID (for example: column : 6 images, row : 100) => so I could use a DATA GRID widget.

- The images dynamically change when the date change => so I could use the Image class, and concerning my future database of movies's poster images, I will store them in a directory (www.mananaseguro.com/img/poster) and dynamically refer to them by their URL.

Am I on the good way ?

I will use GAE, I do not know if it has some advantages for this case.

I will also use Objectify.

Maybe you have some hints that will be usefull when I will need to create this dynamic database managing the posters.

(I precise that I ask this question, because I do not know Objectify for the moment, neither Request Factory, neither the use of the Cell Widgets).

Thanks again for your help,

Best regards

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