PUT HEADER PANEL BACK

ISSUE: the cursor is undrawn/redrawn on each input event.
This includes mouse moves. There are a lot of those.

Deal with rounding errors in font sizes.

=> must work in Fix32 so that font sizes are not rounded

Auto-indent.

Mark range/selection(s). PERSISTENT. 

BUG: on RETURN, first char of old line still visible (but not present,
as a Refresh() shows.)

BUG: tokeniser doesn't leave string state?
Lexer: fat strings & comments, numeric escapes in strings.
(It's a state-machine messup. Needs proper attention.)

UNDO.

Documentation.

Outline view

Proper build, not single-shot.

Incorporate some (silk?) icons.

An icon for the window.

Handling tabs in input files.

Tabbed views.

Run program on demand, I/O to alternate window.

Scrolling!

Don't refresh hidden or not-just-exposed areas.

Splash screen on startup.

Multiple X windows with demuxing.

Dynamic update of panel arrangement.

Dynamic shelves (more than 2 elements, add-n-remove)

Multiple fonts.

Respect version control when saving files.

Factor out the Drawing stuff from panel.

Menus.

Proper preservation of header field(s).

Extraction of keyword/builtin map from edit, should be configurable.

Extraction of tokeniser code from edit, should be configurable.
	
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PUT FLOATY BITS BACK.
	Restored floaty notey option with careful co-ordinate
	computation.

Add join lines.
	Added. Joining a line (to the next line) pulls up any notes
	from the next line into this line's notes.

When lines are inserted/deleted, the REDLINE marks should stay
attached to the correct line(s).
	DeleteLine updated to maintain note attachment; Split
	already had that change.

delete line
	Buffer has DeleteLine(line int) operation; EditPanel uses it
	on ^L.

HOME/END
    The HOME key takes you to the top of the document, or the bottom
    if you're already at the top.
    
    The END key takes you to the left edge of the current line,
    or the right end if you're at the left.

Fix bug in DC/BACKSPACE when outside columns
    Should be fixed as part of extracting buffers.
    
Factor out the buffer-manipulation from edit.
    Now in edit/buffer, with exposed interface Buffer and
    constructor NewBuffer (could perhaps now be just New).

Change names. "panel.Type" doesn't really work. A better name for
"panel" would make ...Panel make sense for the interface.
	Type has become View.

Auto-repeat on keys.
	Turns out to work for free if you're listening to Press events
	as well as Release events. (Maybe even just press events ...)
	Yay.

Function keys.
	F1 is CMD key.

Remember filename on CMD r
Add CMD s (save file)
    Done.

Floaty display over exciting patches of document.
	After pruning the mess of incorrect details I
	had introduced, it is (a) simple and (b) working.

Name on window.
	Done. Maybe an icon would be nice.

Lexer: strings and comments.
	Simple strings and // comments done. \ch escapes done
	but not \octal or \hex.

Tracking mouse motion.
    New At(x, y) method; edit panel responds with log messages on
    damaged lines.

Proper keyboard handling.
	The first thing we do is ask for the keyboard mapping
	and we apply the response to incoming keystrokes.
	(CTRL is still done by hand.) 

Syntax highlighting.
	A primitive version of this is working (for identifiers only).

Coloured strings (etc).
	text is now drawn with a coloured (and fonted) pen.
	which may just be a context rather than a specialised
	object.

rename the P_ methods back.
	Done.
	
Replacing curses with eg X or SDL.
	X is replacing curses.