[OpenJDK 2D-Dev] [9] Review request for 8163854 Add ToolkitImage.getImage() method which loads an image with schema variant

[Philip Race]

FWIW I think the most important image loading use case
is that some generic resource loading code - perhaps JDK code - will get 
a URL for where
the resources are and go hunting. It is never going to call this API .. so
it had better be an optimisation and not a necessity

-phil.


On 8/24/16, 5:24 PM, Philip Race wrote:
> Alexander,
>
> Were  the existing Toolkit.getImage(String/URL) APIs not enhanced to
> do this for you automatically ? I suppose I thought they were but
> they can't be since you are using getImage(String) here.
>
> IMO that would be more important than this.
>
> And in any case I don't see why this is solved only for local files.
>
> I am *not* asking for that right now. I am asking if the existing 
> Toolkit APIs
> can load a multi-res image and if not, why not  and can we fix that 
> instead ..
>
> -phil.
>
> On 8/24/16, 9:36 AM, Alexander Scherbatiy wrote:
>>
>> Hello,
>>
>> Could you review the fix:
>>   bug: https://bugs.openjdk.java.net/browse/JDK-8163854
>>   webrev: http://cr.openjdk.java.net/~alexsch/8163854/webrev.00
>>
>>   The public API which allows to load an image with resolution 
>> variants based on the provided media resolution naming scheme is added:
>>   - Toolkit.MediaResolutionNamingScheme class
>>   - Toolkit.getImageUsingNamingSchemes(String fileName, 
>> MediaResolutionNamingScheme... namingSchemes)
>>
>>   A simple example for images which use naming scheme @150pct for 
>> scale 1.5 and @2x for scale 2 is:
>>     image_name.ext
>>     image_name at 150pct.ext
>>     image_name at 2x.ext
>>
>>     Toolkit toolkit = Toolkit.getDefaultToolkit();
>>     Image image = toolkit.getImageUsingNamingSchemes(fileName,
>>             new Toolkit.MediaResolutionNamingScheme(“@150pct”, 1.5f),
>>             new Toolkit.MediaResolutionNamingScheme(“@2x", 2f)
>>     );
>>
>>   Thanks,
>>   Alexandr.
>>