$Id: TODO,v 1.13 1998/10/25 23:40:08 cthulhu Exp $

TODO: Make a way to test the Abacus effectively:
	* Make it able to run tcl scripts at startup and make test scripts for 
	all commands exported via tcl_interf.cc
	* Improve allfuncs sheet in regressive to include all functions
	available and test them all
	* Make a spreadsheet with all possible formats and test them
	* Spreadhseet with complicated dependence lists to test possible cycles
TODO: Abacus must become Y2K
TODO: When editing formulas via keyboard, we should allow user to use cursor
	keys to reference other cells. Plus add bindings for pageup and 
	pagedown.
TODO: Macro documentation on the help files for each macro.
TODO: Cleanup obsolete topics (inc. RCS) from help browser.

BUG: Date manipulation is not possible - once a date is entered, one can only
	manipulate it's reference number - entry widget should parse internal
	date format to human readable format to edit, and then reconvert back
	for cellsets.
BUG: Make rearrangement of cell alignment display blue line boxes correctly
	-> Get x_coord(textPtr->leftEdge and start scanning from then on,
	redisplaying all rectangles without border until textPtr->rightEdge?)
	Also, if text exceeds cell and there is a cell to the right with
	text, text shouldn't be overwritten.
BUG: When text exceeds cell width and we are exporting Postscript, Postscript
	output is wrong, with line too large. Probably fixed by setting 
	line_width to 0 in tkcanvps.c. ??? Problem only ocurrs when
	printing and I'm out of inkjet paint! :(
BUG: Reference manipulation is wrong when cells are copied.
BUG: When saving a sheet with other name, col and row formats are lost.
BUG: Column widths are not preserved after a save as.
BUG: Range definitions with mixed absolute and relative refs fail.
BUG: When default in accepted in query menu, focus doesn't return to canvas.
BUG: Using columns with width bigger than visible part of sheet makes 
	horizontal scrolling provoque vertical "flicker" and vice-versa. 
	Problem is that when NeedToScroll (from tcl_interf.cc) is called from 
	user_interf.tcl there is no way to know if we are doing a 
	vertical/horizontal scroll, which would partially solve the problem 
	since we would restrict scrolling to said dimension. However, the 
	first time the cell was scrolled there would still be some "flicker".

TODO: Switching bold on and off within a range makes all range members have
	the same font and size - applyFontToSelection is setting all members
	with all active font options (bold,italics,font name,size,etc)
	what it should do is change _only_ the swapped property and not all
	of them.
TODO: Add matrix functions.
TODO: Make column width and row height dialogues equal.
TODO: Redo makefiles of all kind. Make should stop at first error, have a file
	to include with global defines instead of repeating defs all over and
	respect user preferences instead of overriding them.
TODO: Redo macro error messages in checkargs.cc with object structure so each
	argument is only parsed once and not twice (once to check, once to get)
	proper way should involve a constructor that received argv as a
	parameter and returned and object with arguments properly cast or
	error.
TODO: Saving and loading sheets with tcl scripts - add a method GetCode to
	each event from Undo/Redo and dump parts of the list (aka macro
	recording :) ) or the whole list as a script.
TODO: Check functions - seems most of them don't check args and segfault or
	don't work properly.
TODO: Make each sheet remember its active cell - should be done
	as a property of the sheet object and accessed
	whenever change_active_sheet (tcl) is called.
TODO: Put build method and config methods under gnu autoconf
TODO: Redo Canvas from scratch so it works fast and proper like a spreadsheet,
	not a drawing widget.
TODO: Make column selection handle scrolling
TODO: Make selection work with multiple non-adjacent cells/columns/row ?? 
	Handle CTRL Events
TODO: Make complete switch from XXL to Abacus
TODO: Get some nice icons for the toolbars
TODO: Graph editing.
TODO: Cells with errors are not saved and loaded correctly.
TODO: Redo borders of all kind. Check that it prints out correctly.
TODO: Implement remaining functions in formulas.
TODO: Implement cell styles: colors.
TODO: @count function does not work properly when sheet is exported to Excel.
TODO: Remove warnings with gcc -Wall (lots!)