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Theme for Eclipse Juno - Images [message #982836]

Tue, 13 November 2012 08:05

Martin Lange
Messages: 16
Registered: May 2010
Location: Munich, Germany

Junior Member

Hi,

I'm currently try to create my own theme for Eclipse Juno. For that I'd like to change the drag-handle-image for draggable controls.

I have created an plugin project 'org.mlange.theme' added a folder 'images' and put my images in that folder.

In CSS for my theme I wrote:

...
.MToolControl.Draggable 
{
	handle-image: url("./images/dragHandle.png");
}
...

Unfortunately it is not working. How do I have to specify the url for my image?

Many thanks!

Best,
Martin

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Re: Theme for Eclipse Juno - Images [message #986015 is a reply to message #982836]

Sat, 17 November 2012 08:48

Brian de Alwis
Messages: 122
Registered: January 2012

Senior Member

So your dragHandle.png isn't being found as it's likely in a bundle that's not on the search path. URLs in the CSS files are resolved from the following places:

As an OSGI resource relative to platform:/plugin/org.eclipse.platform/css/ (zoiks! how'd this get hard-coded in there!?)
As an OSGi resource relative to the location specified in the "applicationCSSResources": this property is either specified on the command-line, as a System property, or as a product property. The Eclipse IDE product specifies its applicationCSSResources = platform:/plugin/org.eclipse.platform/images/.
As a URL
As a file path: the current directory usually is that holding the executable (e.g., .../Contents/MacOS/ for OSX)
Plus any resource locators registered with a stylesheet (which should be but doesn't seem to be theme-specific unfortunately).

You have two choices:

Associate a resource locator with a stylesheet. Individual stylesheets can contribute their own URI bases for resolving resources via the "osgiresourcelocator" element on org.eclipse.e4.css.swt.theme/stylesheet. And a stylesheet can be contributed to a theme (see the "themeid" element on org.eclipse.e4.css.swt.theme/stylesheet).
Specify your image using a full URL like platform:/plugin/xxxx/images/dragHandle.png. This is likely the easiest solution.

Brian.

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