Thank you for the response. The thing is that I want to call something like
this:
Image w = new Image(ImageResourceLoader.background());
and this resolves everything... (by URL or by static). All the behavior of
deciding whether the image is customized or not remains inside the
ImageResourceLoader.
I have the Resources interface which declares all the static images. I did
an ImageResourceLoader class that implements the Resources interface.
Implementing the Resources interface ensures all images can be accessed
through the ImageResourceLoader.
An example method of the ImageResourceLoader:
@Override
public ImageResource backgroundColor() {
if(isCustomized){
return createImageResource(new Image(backgroundURL));
} else {
return Resources.INSTANCE.backgroundColor();
}
}
The only solution I found for the createImageResource method was something
like this:
private ImageResource createImageResource(final Image image){
return new ImageResource() {
@Override
public String getName() {
// TODO Auto-generated method stub
return null;
}
@Override
public boolean isAnimated() {
return true;
}
@Override
public int getWidth() {
return image.getWidth();
}
@Override
public String getURL() {
// TODO Auto-generated method stub
return image.getUrl();
}
@Override
public int getTop() {
// TODO Auto-generated method stub
return image.getAbsoluteTop();
}
@Override
public int getLeft() {
// TODO Auto-generated method stub
return image.getAbsoluteLeft();
}
@Override
public int getHeight() {
// TODO Auto-generated method stub
return image.getHeight();
}
};
}
but I think that the Image would be fetched twice from the server, one in
the backgroundColor method and the other in the line:
Image w = new Image(ImageResourceLoader.background());
Do you have some suggestions?
Thanks!
Juan José
2010/4/14 Viliam Durina <[email protected]>
> I think you should do:
> Image w = isCustomizedImage()
> ? new Image(getCustomUrl())
> : new Image(ResourceLoader.INSTANCE.background());
>
> The client bundle must contain only static images that are known at
> compile time, as this is the time when it creates one composite image.
> You must use ClientBundle for static images and use different
> mechanism that loads non-static images.
>
> Viliam
>
> On 12. Apr, 16:54 h., Juan Quito <[email protected]> wrote:
> > Hello, my application has some standard icons like save, new, edit,
> > etc... but the user can customize the icons and specify the images he
> > wants the application to display at runtime. How can I accomplish this
> > using ClientBundle interface (the standard images would be specified
> > in the extended interface) and in runtime the system gets the custom
> > image instead of the standard one by loading from an URL?
> > I don't mind getting all the standard icons even if they won't be used
> > at all. Today my system loads all images by the URL, so the startup of
> > the application is too slow and most of the images are standard.
> >
> > I would like to do something like this:
> >
> > Image w = new Image(ResourceLoader.INSTANCE.background());
> >
> > ResourceLoader looks if there is a customized image for background,
> > and if there is... loads from an URL, if not... calls the Resources
> > interface loading the standard one.
> >
> > interface Resources extends ClientBundle {
> > Resources INSTANCE = GWT.create(Resources.class);
> > @Source("images/background.png")
> > ImageResource background();
> >
> > }
> >
> > Thanks!
> > Juan José Quito
>
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