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switching css themes with e(fx)clipse [message #1487143]

Tue, 25 November 2014 15:52

Frank Benischek

Messages: 2
Registered: November 2014

Junior Member

Hello everybody,

i've tried to extend my "e4+javaFX" demo app with the ability to switch the css theme at runtime.

I was following the tutorial at "www.vogella.com/tutorials/Eclipse4CSS/article.html#tutorial_cssstyling" but in the final this won't work, because my app has a "e(fx)clipse Target Platform" and therefore doesn't know the bundle "org.eclipse.e4.ui.css.swt.theme" and so the classes and interfaces like "IThemeEngine" will be unknown. The according jar file is presend within the eclipse plugin folder: org.eclipse.e4.ui.css.swt.theme_0.9.300.v20140424-2042.jar

Switching the target platform back to "default" will resolve the "IThemeEngine" problem but will create others because of the missing e(fx)clipse bundles.

In a second attempt i tried using "org.eclipse.fx.ui.theme.internal.DefaultThemeManager" (from e(fx)clipse??) but this doesn't work either.

Anybody has a hint to get this working? I wasn't able to find any tutorial on this problem.

Thanks in advance
Frank

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Re: switching css themes with e(fx)clipse [message #1487418 is a reply to message #1487143]

Tue, 25 November 2014 21:00

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

Hi,

The CSS-Styling from e4+SWT does not really help you on e4+JavaFX
because as you already found out:
* the extension point is different
* the classes are different

The API you are looking for is
*org.eclipse.fx.ui.services.theme.ThemeManager* and the extension point
is *org.eclipse.fx.ui.theme*

Usage in a handler should as simple as:

@Execute
public void switch(ThemeManager manager) {
manager.setCurrentThemeId("dark");
}

Tom

On 25.11.14 20:49, Frank Benischek wrote:
> Hello everybody,
>
> i've tried to extend my "e4+javaFX" demo app with the ability to switch
> the css theme at runtime.
>
> I was following the tutorial at
> "www.vogella.com/tutorials/Eclipse4CSS/article.html#tutorial_cssstyling"
> but in the final this won't work, because my app has a "e(fx)clipse
> Target Platform" and therefore doesn't know the bundle
> "org.eclipse.e4.ui.css.swt.theme" and so the classes and interfaces like
> "IThemeEngine" will be unknown. The according jar file is presend within
> the eclipse plugin folder:
> org.eclipse.e4.ui.css.swt.theme_0.9.300.v20140424-2042.jar
>
> Switching the target platform back to "default" will resolve the
> "IThemeEngine" problem but will create others because of the missing
> e(fx)clipse bundles.
>
> In a second attempt i tried using
> "org.eclipse.fx.ui.theme.internal.DefaultThemeManager" (from
> e(fx)clipse??) but this doesn't work either.
>
> Anybody has a hint to get this working? I wasn't able to find any
> tutorial on this problem.
>
> Thanks in advance
> Frank

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