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1998-08-17  Miguel de Icaza  <miguel@nuclecu.unam.mx>

	* src/main.c (main): Include i18n setup as per namsh's suggetion.

Various little fixes here and there:

	- Basic support for dragging the selection is in (still does
	  not do anything, will do the action binding later).

	- Fixes to the cell-selection-code-when-you-type-a-formula code

	- ExprTrees are now properly refcounted (instead of only
	  refcounting the root node).  This is required for the
	  Paste special/with-arithmetic operation feature.

	- Expression decoding (for pasting a formula with relative
	  references) now takes into account operator precedence to
	  avoid cluttering the pasted expression with extra paretheses.

	Other smallish fixes which I forget now.

Miguel.

1998-08-14  Jaka Mocnik  <jaka.mocnik@kiss.uni-lj.si>

        * src/clipboard.h: changed PASTE_ALL to PASTE_ALL_TYPES.
	* src/gnumeric-util.c (gtk_radio_group_get_selected):
	changed to work. I guess it is a bit weird trying to
        access a next member of an int.

Various small fixes + goto dialogs + improved paste special.

Thu Aug 13 19:08:28 1998  Tom Tromey  <tromey@cygnus.com>

	* src/xml-io.c: Look in gnome-xml for tree.h and parser.h.

Paste special dialog box.
Expression tree decoder (required for copy paste).
Selection walking works properly just like in Excel.

OK, first version of Gnumeric with cut/copy/paste support.

It has a bug or two that I will fix tomorrow first thing in
the morning.

Tomorrow I will also do the "move" region thingie with the
new fix to the canvas from Federico.

Miguel.

Ok, fixed the problems with the bounds in the ItemCursor,
but i still cant get events after I do a gnome_canvas_grab
for the case of the dragging selection.

Work on the clipboard

Ok, finally got recalculation working as it is supposed to work.

This piece of code is so clean that it was actually a clean fix :-)

Autocalc works (but I managed to break the recursive detection
stuff, will fix that tomorrow).

Quick-computations on the selected area (like Excel) works with
different user-selectable functions.

Fixed the horrible crash due to not removing my strings from the
hash table ;-)

Miguel

It autocalcs!

My technique is incredibly cool!  The engine should support
most excel features for recursive computations (we just need
the dialog boxes now).

It still has a wierdo crash from a mismatched string ref/unref
but that is going to be trivial to fix.

Next step:  Functions in Perl.

Today it probably does not compile, but I have to leave now.

This is basically the framework for getting computations working.

My current approach is to register areas of interest for a cell.
This is not perfect, but good enough:

	The idea is to walk the expression tree and look for
	cell references (cell references or ranges) and register
	those areas of "interest" for a cell.

	When a new text is entered into a cell, the "regions" of
	interest list is checked and if a match is found, then
	the cells on that region of interest are queued for
	recomputation.

Of course, I do not know yet how to handle the recursive references.

One option is to keep a counter (that starts at zero) during
recomputation, ie something like:

eval_cell (Cell *cell)
{
	cell->use_count++;
	if (cell->use_count > threshold)
		return "Cycle too depth";
	...
	on value lookup:
		eval_cell (cell);
	...
	cell->use_count--;
}

More GNOME vaporware code.

I am actually commiting empty files, just to increase our line
count.

Miguel.

Lots of work as usual :-)

Cell lookup is still broken.
More functions!  COUNT, AVERAGE, AND, OR.

Changed the function framework: it is now easier to write
functions that take multiple arguments.

Added some documentation on writing functions.

Miguel.

Lots of things today:

- New functions implemented:
	SELECTION(),  SUM(),  IF()

- Autocompute of an expression that applies to the selection.

- Added comparission to the expression grammar.

- Added array values.

Bug fixes as usual and lots other thingies I forget.

Miguel

More changes GUI changes

We got functions today.

Miguel.