Highlighting art on document when ArtHandle is known

Question

I have a list of art (handles) from current document, collected by applying some filter.
I show a entry in a list box on my plugin panel dialog for each art handle I have selected.
Now I want to implement a mechanism to highlight the corressponding art, when I select it from the list box (say on double click of the list's entry).
To highlight I take the approach as
1. Annotation around the art
2. Bringing the art in the visible area.
1. Annotation :
For annotation I understand we need to have a AIAnnotatorDrawer for "sAIAnnotatorDrawer->DrawRect".
In the SDK sample, this AIAnnotatorDrawer  is taken from the notifier's message.
In my case, I don't want any notification, but want to draw the rectangle and then erase it. I know the art's handle, hence can find location and bounds of the art.
I have acheived it throught "sAIShapeConstructor->NewRect", but this modifies the document's artwork. Hence, was checking the annotator.
2. Bringing the art to visible area :
Solution is "AIDocumentViewSuite::SetDocumentViewCenter" ??
Please help me out with some sample reference / suite for pt#1. And please verify pt#2.
A totally different way to highlight the art knowing its handle is also welcome.

Answer 1

The AIDocumentViewSuite has everything you need to center on the selected art. I can't remember off the top of my head, but we've got almost exactly what you're talking about in our plugin and the centering stuff was pretty easy. Just poke through that header, it shouldn't be a problem. Just bear in mind that you might need to use one of its methods to convert from page coordinates to 'view coordinates' (which are basically pixels).
As for the annotation, that's fairly easy for something like this, so long as you understand annoations. There are several threads on that already, explaining the basics, and if you're not familliar with them I'd go read them first. But assuming you grasp the basics of annotations, here's the high level for what you're looking for:
Use AIArtSuite::GetBounds() on the handle you want to denote
Call AIAnnotatorSuite::InvalAnnotationRect() on the bounds from Using the bounds from (1), after converting them into document view coordinates using the AIDocumentViewSuite (very easy).
Assuming you've registered an annotator with Illustrator, you should get a caller/selector for drawing the annotation. The message will include an AIAnnotatorDrawer, which you'll need to actually draw your mark up.
Draw whatever it is you want around the art; you'll probably want to cache the art in question so you know what art you're supposed to be marking up.
One thing to note: to clear the annoation (let's say you can pick nothing on your list) you'd do steps (1) & (2) and you'd just do nothing in (3) or (4). For us, in that situation I just clear the cached handle and then in (3) & (4) I do nothing if the handle is null.
Additional notes: AIDrawArtSuite::DrawHilite() is a nice method you can use to hilite paths. It works on other types of art, but it looks best on paths.