Thread Subject: Re: FW: Starting discussions on theAccessibility APIproposal
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From: Travis Roth
Date: Wed, Dec 20 2006 12:45 PM
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> 2. Under additional object information needed for editable text
> objects, there is an information about "the bounding rectangle of each
> character of text". Having a bounding rectangle of each character of
> text is not necesarry. The most important thing is to have the text
> insertion carat and have the bounding rectangle on the input field of
> the editable text so that it is clear as well for the screen magnifier
> which is the focus it needs to present to the users. That means AT
> will not only sets the focus to the character but also to the object
> surrounded the editable text.
> We've thought about (and argued internally within Sun) about this issue
> a lot. The reasons we decided to include character bounding rectangles
> were to support several AT use cases that we didn't see a clean route to
> providing otherwise. On the other hand, this is one of the more
> difficult things for some software applications to provide.
> The use cases include:
> a. TextHelp / ZoomText AppReader / WYNN functionality where portions of
> the text are highlighted as they are read with speech - including the
> sentence, line, word, and character
> b. Proportional Braille line formatting, as used in European screen
> readers, where in "full screen review" mode text is spaced appropriately
> to show vertical alignment [thus a row of the 'i' characters above a
> row of the 'w' characters in a proportional spaced found would be
> rendered in Braille with blank Braille cells within the row of 'i'
I would also submit a possible use case of:
c. This information can enable AT to select or convey selection, when a key
on a braille display is pressed to move focus to a specific character. This
is often referred to as cursor routing. There may be other programmatical
means to do this as well.
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