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AbstractDecoratedTextEditor Backgroundcolor [message #781794]

Sun, 22 January 2012 09:31

Jeff Doth

Messages: 10
Registered: January 2012

Junior Member

Hello,

my editor extends AbstractDecoratedTextEditor. I am trying to change the background color of a certain range in the document (like the Eclipse Debugger to highlight the current line). In StyledText I would simply use StyleRange but how can I do this in AbstractDecoratedTextEditor or TextEditor?

Thanks in advance!

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Re: AbstractDecoratedTextEditor Backgroundcolor [message #782143 is a reply to message #781794]

Mon, 23 January 2012 08:52

Dani Megert

Messages: 3802
Registered: July 2009

Senior Member

On 22.01.2012 10:31, Jeff Doth wrote:
> Hello,
>
> my editor extends AbstractDecoratedTextEditor. I am trying to change
> the background color of a certain range in the document (like the
> Eclipse Debugger to highlight the current line). In StyledText I would
> simply use StyleRange but how can I do this in
> AbstractDecoratedTextEditor or TextEditor?
This is normally done by adding an annotation to the document (or more
precise: to its annotation model). You can then assign presentations to
your own annotation type, e.g. draw a background color. Take a look at
the following two extension points:

org.eclipse.ui.editors.annotationTypes
org.eclipse.ui.editors.markerAnnotationSpecification

If it's really just about drawing you might also want to try
org.eclipse.jface.text.ITextPresentationListener.

Dani
>
> Thanks in advance!

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