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List:       koffice-devel
Subject:    Re: Column/row default cell styles (was: koffice/kspread)
From:       "Robert Knight" <robertknight () gmail ! com>
Date:       2006-03-18 17:41:37
Message-ID: 13ed09c00603180941k3c90577er () mail ! gmail ! com
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Ah okay, I see what you mean now concerning default cell styles and
empty cells which are created to fill up incomplete rows.

If I remember correctly, the purpose of the default cell style name
was for brevity, so that if a certain style was used several times on
a row or column, the style-name attribute would not have to be
provided for each of the affected cells.

I agree with you that it is inconsistent, but it does reduce the
amount of XML text needed to describe most table layouts, which means
less parsing and faster loading / saving.  As I said before, I don't
think we have any choice but to implement it as OO.org has and ask the
OASIS people to clarify this in the specification.

On 18/03/06, Stefan Nikolaus <stefan.nikolaus@kdemail.net> wrote:
> On Saturday 18 March 2006 14:50, Robert Knight wrote:
> > Let me try and clarify how I interpreted the OASIS spec.
> >
> > For cells in a column, their apperence is affected by two things:
> >
> > - The width and visibility is determined on a per column basis (since
> > all cells in the column must be of the same width, and you cannot hide
> > or show individual cells).  These attributes are specified in the
> > column's style (specified using the column's style-name attribute)
>
> No, the visibility is not! It's a separate attribute in the column element,
> not in the column style.
> Well, I see, what you're aiming at: Attributes of the column's style are
> applied to the whole column while the column's attibutes are applied the used
> range only. But the visibility speaks against this.
>
> Why should the "default-table-cell-name" be the _only_ attribute, which is
> _not_ applied to the _whole_ column?
>
> > - Other properties such as background colour, font, rotation,
> > protected status which can vary between cells in the same column are
> > specified by the highest-priority table-cell style which affects that
> > particular cell, in decreasing order of precidence these are:
> > - The cell's specific style (the style-name attribute of the table:cell
> > element) - The row's default cell style (the default-cell-style-name
> > attribute of the table:row element)
> > - The column's default cell style (the default-cell-style-name
> > attribute of the table:column element)
>
> Agreed.
>
> > The default-cell-style-name styles are table-cell styles which don't
> > have any properties that specify width or visibility (see section
> > 15.11 of the OASIS spec).
>
> Agreed. I've never mentioned that they do.
>
> > The second aspect only applies to cells that actually exist (ie. are
> > represented by a table-cell element in the XML file), those that are
> > not should be drawn with the Default style.
>
> If we agree on the column's "default-table-cell-name" attribute is applied to
> the _whole_ column, this would include empty cells, which are "filled" into
> this column, to use this style.
>
>
> You are refering to the third paragraph in 8.1 Basic table model.
> Let's disassemble this and explain it on an example:
>
> "Spreadsheet applications typically operate on large tables that have a fixed
> application dependent row and column number, but may have an unused area."
> Spreadsheet application's sheet dimensions: 2x2 (a killer app!)
>
> "Only the used area of the table is saved in files."
> We occupy only the first cell and save our doc:
> Document's table dimension: 1x1
>
> "When loading a table with empty or incomplete rows into a spreadsheet
> application, empty rows typically introduce a default row (just as in an
> empty sheet),"
> We speak of a spreadsheet application, so the default row has a 2x1 dimension.
>
> "and incomplete rows are filled with empty cells (just like in an empty
> sheet)."
> The first row becomes also a 2x1 row.
>
> That we speak of incomplete and empty rows with respect to the spreadsheet
> application's dimension says the following sentence:
> "All other applications typically have fixed size tables."
>
> Now to the rendering:
> "Incomplete rows are basically rendered as if they had the necessary number of
> empty cells,"
> If we got
>   <row>
>   <cell>1</cell>
>   </row>
> or
>   <row>
>   <cell>1</cell>
>   <cell/>
>   </row>
> , both have to be the same.
>
> "and the same applies to empty rows."
>   <row/>
> becomes
>   <row>
>   <cell/>
>   <cell/>
>   </row>
>
> As the spec refers to the application's dimension, the
> "default-cell-style-name" applies to all cells in a row (or column).
>
> Regards,
> Stefan
>
>
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>
>
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