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Hi LORENZO,

On Thursday, 2016-10-20 09:03:35 +0000, LORENZO Vincent wrote:

Here I will give you a list of the main features used in NatTable and for which I would like to 
know if they already exist in Calc and if there is an API (in Java ?) to drive them:
- Customize the cell appearance with CSS
No.

- Manage the cell contents
Yes.

- Manage the cell access (read-only or read-write)
Yes.

- Declare custom cell editors (or dialogs) on cells to edit their contents
No. However, validity criteria and selection lists can be created for
cell input.

- Show/hide columns or rows (not a deletion)
Yes.

- Display data as a tree in a column (with expanding, collapsing and hiding intermediate row 
without to hide its children)
Not sure what you mean, sounds a bit like Grouping or Pivot tables,
you'd have to see yourself.


In addition, I would like to know if the toolbars and the menus can be customized and hidden 
easily.
Yes. Whether it's easy or not depends on your mileage..

Concerning the cell management, in the NatTable widget we proceed in 2 steps :
-              One step to declare the cell contents : we declare the java object represented by 
the cell. It is not a string at this level, it is a java object, like a list, a Boolean, an 
integer, ...)
-              The second step calls a LabelProvider which returns the text to display for the 
given object

Is it the same kind of process in Calc or it is only a text management ?
Calc has numeric, text or formula cell content. Content/results can be
formatted for display using styles, number formats and conditional
formatting. Java objects can't be set as cell content.

So, to resume,  my main question concerns the customization capabilities of Calc to manipulate 
its behavior programmatically.

At the end, please, could you indicate me where I can found developer documentation about Calc 
and its API.

http://api.libreoffice.org/
Spreadsheet specific API under
http://api.libreoffice.org/docs/idl/ref/namespacecom_1_1sun_1_1star_1_1sheet.html

  Eike

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