Re: [platform-text-dev] Going from ITextEditor toITextViewerandback

["Daniel Megert" <daniel_megert@xxxxxxxxxx>]

If you only read
values it's not an issue, but if you change things on StyledText it *might*
interfere with features implemented in the viewer or the editor.

Dani



From:
       Nathan
Ridge <zeratul976@xxxxxxxxxxx>
To:
       Eclipse
Platform Text component developers list <platform-text-dev@xxxxxxxxxxx>
Date:
       08.08.2018
19:20
Subject:
       Re:
[platform-text-dev] Going from ITextEditor to        ITextViewer
       andback
Sent
by:        platform-text-dev-bounces@xxxxxxxxxxx

---

> It is not a good practice to
access the text widget unless you do it for your own editor. Please see
org.eclipse.jface.text.ITextViewer.getTextWidget() for details.

Let me give a concrete example.

In this StackOverflow question [1], a user is writing a plugin that provides
a context menu action, and they want to write a filter for the action that
enables the action based on what in the editor was right-clicked.

To do this, they need to map the coordinates of the right-click in the
editor, to a character offset. StyledText provides a public API for doing
this, getOffsetAtPoint(), so I suggested that they use getAdapter() to
obtain the StyledText, and then getOffsetAtPoint() to obtain the character
offset.

Is there something wrong with this? Is there a better way that I could
have suggested?

Thanks,
Nate

[1] https://stackoverflow.com/questions/51710935/eclipse-cdt-plugin-get-ast-element-based-of-x-and-y-position-of-mouse-click-in/
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