Re: [office] Drawing page names (Re: [office] OpenDocument TC MeetingMinutes 2006-02-13)

[Michael Brauer <Michael.Brauer@Sun.COM>]

Hi,

while integrating this proposal into the specification, I noticed that 
it would cause an inconsistency for tables:

Tables are not per se graphical objects, so it seems a little bit 
uncommon to add svg elements to them. We had a similar situation for 
hyperlinks, where we use an "office:title" attribute instead. I 
therefore suggest that we reuse the office:title attribute for tables, 
and add an office:desc attribute, too.

I further suggest that specify that the two attributes are ignored, if 
the table element is a child of an draw:frame element, because in this 
situation, the frame itself has a title and a description.

The inconsistency does not effect the drawing pages.

Michael




Malte Timmermann wrote:
> Makes sense for me.
> 
> Matches well with what we have for shapes, and the mapping for
> Accessibility API.
> 
> BTW - I propose to have the same for sheets in a spreadsheet:
> - Same features for Accessible Name/Description
> - Sheet names have much more restrictions because of macro access, so
> via the Title people can give them names they otherwise can't.
> 
> Malte.
> 
> Michael Brauer - Sun Germany - ham02 - Hamburg wrote, On 10/26/07 14:11:
>> Hi,
>>
>> I have discussed the results of our discussion in the last TC call with 
>> Christian. He suggests that we adapt solution B (the draw:display-name) 
>> a little, and add <svg:title> and <svg:description> elements instead of 
>> a "draw:display-name" attribute. That is, the draw:name attribute would 
>> stay unique, but the <svg:title> element could be used to add a 
>> non-unique name or title to the page.  The two elements <svg:title> and 
>> <svg:description> exist for shapes already. The solution therefore would 
>> be consistent with shapes
>>
>> Christian further suggest that we take first actions to deprecate the 
>> draw:id attribute in favour of the new xml:id attribute, by stating that 
>> they can only appear together, and must have the same name.
>>
>> See below for mor details:
>>
>>> Current Situation
>>>
>>> a <draw:page> element has the following attributes
>>>
>>> "draw:id" defined as a unique id for drawing pages. In OpenOffice.org (OOo), this was never used prior to OOo 2.3.
>>> It is currently only used for redundant slide transition information.
>>>
>>> "draw:name" defined as an optional but unique name. OOo either writes a programmatic name ("page1", "page2", etc) or
>>> a user defined one, which can contain white space. In the xml format it is used for links referring to slides inside a document
>>> and also when defining a custom show. This has the consequence that such links break if the user renames the slide.
>>>
>>> a shape element has the following attributes
>>>
>>> "draw:id" defined as a unique id for shapes. This is used to identify shapes for animation effects.
>>>
>>> "draw:name" is an optional attribute. It is not documented if this has to be unique. In the OOo implementation, shape names
>>> are enforced to be unique but only for shapes on one slide. For historical reasons this is also used for links to shapes in OOo. This feature
>>> breaks if there are multiple shapes with the same name on different slides.
>>>
>>> In addition a shape has the elements <svg:title> and <svg:description> to specify text-only description strings for graphical
>>> objects as specified in §5.4 of [SVG]. This was a A11Y requirement.
>>>
>>> Request for non unique page names
>>>
>>> The initial request was that the name of a page should not be enforced to be unique. To be consisted and to fulfill
>>> A11Y requirements the <draw:page> element must also have the elements <svg:title> and <svg:description>.
>>> In this context the title could be seen as the display name as proposed in solution B. For backward compatibility,
>>> if no title is given then the name must be used. On the user interface the title must become what the user normally
>>> refers to as the name of the page.
>>>
>>> A new request would be to prepare a conform way to identify pages and shape elements inside an odf document.
>>> To enable linking to meta information we must have the xml:id attribute for pages (and optionally for shapes).
>>> This would lead to the situation where we have the xml:id, the draw:id and the draw:name documented as kind
>>> of identifiers for pages (and shapes).
>>> To have a clean format I propose to add xml:id to both draw:page and all shape elements. It will be document that
>>> draw:id attribute is deprecated and that applications must for now export the draw:id attribute with the same value
>>> as the xml:id element. The attribute draw:id should be removed in a later version as soon as there is no more demand
>>> for backward compatibility. 
>> Best regards
>>
>> Michael
>>
>>
> 
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-- 
Michael Brauer, Technical Architect Software Engineering
StarOffice/OpenOffice.org
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