Todo

todo:

changes in 4.0
* B	stupid compiler warning messages
* W	remove packaging

changes in 3.13:
* B	can't open .ggr files created by newer Gimp versions
* W	hsv gradient .ggr support (Henryk Trappmann)
* W	steps towards Windows support (Richard Mant)
* B	switch from md5 to hashlib.md5 to remove DeprecationWarning on py2.6
* W	min pygtk version -> 2.12
* B	fixed deprecationwarnings from pygtk about Tooltips class
* W	moved repository to git
* W	this is the 3.x branch

bugs (the more B's, the worse the bug):
* BBB	too slow!
* BB	doesn't install on Ubuntu 9.04
* BB	disabling auto-deepen doesn't turn of making shallower
* BB	black screen when load slow fractal via cmd line, + segfault when resize before redraw finishes
* BB	(0,0)^1 == nan (pow_cf_c code wrong for this case)
* BB	sometimes get "Fatal Python error: GC object already tracked" during fract4d/test.py
* BB	floating point exception on load of aho.ucl#Stripes_any (-1 % 0)
* BB	animation colors are screwed
* BB	func with a bailout of 1 will never quit and can't be interrupted
* BB	infinite loops are possible in while loops
* BB	Renderqueue should antialias even if main window doesn't
* BB	better image-sizing widgets for render queue
* BB	gnd.ufm#4D Julia - behaves very oddly
* BB	fractint doesn't reset vars between points
* BB	explorer rather slow with complex colorfuncs (recompile too much)
* BB	not all keyboard shortcuts available when menu hidden (fullscreen)
* BB	should save enum params as strings, not indexes
* BB	squares left behind when changing from a smooth colormap to a jagged one
* BB	sometimes copying subfract to main fract loses some data
* BB	stops drawing after new gradient applied to DCA fractal (sometimes)
* B	interrupt takes too long on deep-zoomed fractals
* B	MandAutoCritInZ doesn't work if optimization off in g++?
* B	hth.ufm#StrangeKindOfMandelbrot gives 'cmag_c_c not found'
* B	can't have a DCA and a non-DCA formula for inner and outer
* B	painter doesn't work on purple background of gfp2lob003.fct
* B	compile 17x before display when loading parfile.fct ?
* B	RQ: progress bar should be more colorful
* B	half-done images left behind when RQ aborted
* B	-, ! missing from docs
* B	as.ufm:SpiralJazz: very long if/elsif sequence can cause stack overflow
* B	no scrolling if too many parameters to fit on screen (eg barney3)
* B	painter click on inner sometimes gives "IndexError: list assignment 
        out of range" @ self.f.solids[color] = 
        (int(r*255.0),int(g*255.0),int(b*255.0),255)
* B     var called 'loat' would clash with C reserved word
* B	weird behavior when using explorer mode & oversized image
* B	untitled_5 displays weirdly - so do some combinations of bailout+colorfunc
* B	should start drawing straight away when image returns to normal size
* B	recoloring during deepening can make things shallower
* B	horrible_drawing_bug.fct - zoom out & it looks very different
* B	fractint builtin fns with () in the name 
* B	each fractal gets compiled twice, 2nd time with extra vars
* B	does everything have to be .17f ? (attach a float to controls)
* B	default chebyshev gives blank screen
* B	compile whenever resolution changes - pointless
* B	O-fractals in fractint-g4.frm broken (don't work in Fractint either)
* B	odd behavior re: selected transform in list

features (the more W's, the more work involved):
* WWW	toolbox: autozoom, clickzoom, UF-style zoom, realtime zoom, painter
* WWW	database-backed browser
* WW	preview gradients better, hook up gradientCellRenderer
* W	more transforms, incl 4-d ones. Make 4D a 'standard' transform?
* W	minibrot finder a la explorer.c
* WW	provide a way to get a gradient vector
* W	progress and interruptability while parsing/compiling
* W	RQ: Should have option to delete an image from the queue
* W	RQ: add pause/resume
* WWW	RQ: continue rendering across shutdowns
* WWW	high dynamic range color, OpenEXR 
* W	center-select mode.
* W	name of image and creator in .fct and .png files
* W	user-supplied additional gradient params
* W 	gradients: HSV backend (flare_glow_radial_2)
* WW	download missing formulas from UF formula database
* W	move handles in gradient editor
* W	zoom gradient preview
* W	copy & paste to/from text or image
* WW	edit overall brightness/contrast/gamma/HSV/RGB
* W	logmap
* W	warn if overwrite/always save as/clear name on major change
* WW	include formula in .fct file
* W	make explorer mode work better if you're zoomed in a long way
* W	"explore this parameter"
* W	assert that correct number of params passed to init()
* WWW	create colormap from picture (eg digital photo)
* W	tie menu-based and toolbar-based explorer toggling
* W	regenerate for explorer mode 
* W	autosave/restore?
* W	max size for .so cache
* W	signal tpool conds after releasing mutex? (tiny perf change, maybe)
* WWW	make it work with GMP
* W 	desktop mode
* W 	demo mode
* W	bookmarks
* WW	import .par files
* WW	import .upr files
* W	tooltips for custom widgets in toolbar
* W	last-chance exception handler
* W	formula browser:manage search path (user prefs)
* W	formula browser:save changes to .frm files
* W	review human interface guidelines
* W	angles in degrees?
* W	connect identically-named params in different parts of formula
* W	autosave
* W	make easier to use on click-to-focus systems
* W	click-and-release on angle,fourway - may require pointer_grab, though
* WW	visible history
* W	finish fractint-builtins.frm

tests:
* W	regression test vs fractint, previous versions
* W	improve benchmark
* W	exact SMP equality test

UF Incompatibilities:
* B? 	jgr.ufm:Rowan - default is blank
* B	jgr.ufm:Willow - '@fn1' is predefined (in switch)
* B	browse fhq.ufm - invalid UTF8 string passed to pango_layout
* B	dmj.udm:dmj-ManyJulia - looks like 3 quadrants are wrong somehow
* W	raise/remove limit on number of parameters
* W	allow redeclaration of variables

Orbits/Attractors

A new kind of formula which specifies a per-iteration function or set
of functions from a 4D point to another 4D point. Plot after each
iteration. Initially, ignore Z,W position - later, project to screen.

Or: use same functions, a separate drawing mechanism, plus a flag for
formula to set default. That could allow Buddhabrot-style
calculations on all types.

params (not all applicable to all types): 
1) how to set color of point
2) time step
3) which points to start with

gnofract4d
* W	automatic saving of picture and parameters at the same time 
* WW	How about colour cycling?
* B	aspect ratio locked with -i and -j params
* W	add fractal params to image, add load image
* W	Julia preview by moving around while holding button3
* W	history window (move history inside library??)
* WW	MDI
* B	pause doesn't stop subfracts

xscreensaver version
* W	auto random parameters
* W	draw to root window

Movies-
* B	movies turn off AA
* W	implement frames/image
* W	implement curves
* W	load/save movies
* B	antialiasing/auto-deepen broken for movies
* W 	actually save movie images -> disk
* W	move keyframes up/down 
* B	lines are ugly
* W 	"constant zoom speed" mode?
* WW	run mpeg encoder?
* W	draw image all-at-once for movies?

CmapEditor
* W	put "click to apply" right next to preview
* B	update previews doesn't expose colorbuts
* B 	setting to an rgb_cizer permanently breaks cmap editor
* W	color cycling
* W	choose range + smooth
* W	choose every other in range
* W 	save new .map + add to preview list
* W 	remove debug printfs
* W	finish cmapeditor

Gnofract4d server:
Browse formulas, .fct files interactively in web browser, gf4d
gf4d fetch formulas automatically when missing
formulas are versioned, .fct file lists revision it used
local repository with versioning?
anyone can edit any formula, no-one can delete older revisions
all edits are attached to a named user. 
Anyone can create an account without human intervention
Post new formulas and .fct files easily from within GUI
Post thumbnail images for browsing

design possibilities:
use revision control system (subversion, cvs, rcs, arch?)
pysvn (has further dependencies)
hosting: cvsdude? sourceforge?
wiki? (need to remove formatting, though)

Distributed computing: 

Scenario: I have 3 computers at home, want to generate fractals more
quickly. I install gf4d on all 3 of them, then without further
configuration I can use any of the computers to create images and the
others will contribute if available.

Requires: discovery protocol, work distribution scheme that can cope
with missing or misbehaving clients

Scenario: I want to generate a huge animation. I join up to a global
group of gf4d users who contribute spare cycles (via a screensaver?)
in return for a look at what I'm generating, (like ElectricSheep).

Requires: above, +able to deal with ad-hoc networks of thousands of peers,
economic incentive, security, works with NAT

changes in 3.12:
* B	auto-deepening logic made things shallower when it shouldn't
* W	include gimp 2.0 gradient path in default search

changes in 3.11:
* W	--buildonly, --usebuilt, --cflags, --singlepoint flags
* W	benchfct.py script
* W	z*z -> sqr(z) in Mandelbrot
* W	16x16 blocks
* W	4-way AA
* W	ab+ab -> 2.0 * ab in sqr_cc_c (slight perf gain)
* B	tighten periodicity checking more often
* W	added continuous_decomposition coloring method
* W	added sterling2 formulas (courtesy Tad Boniecki)
* W	stats calculation
* B	fixed randomness in stats

changes in 3.10:
* B	can't upload immediately after authorizing
* BB	UnicodeDecodeError uploading picture: unknown character 89 at posn 0
* B	fixes to work with Python 2.6
* W	deleted gconf nonsense, fract4dguic extension
* BB	auto_tolerance messes up Hi-Res saved images

changes in 3.9:
* B	load old (v1.5) files with moved .map files
* B	--nogui doesn't set map_path from prefs
* W	added --threads cmd-line option
* BB	./gnofract4d --nogui -q with multiple threads crashes	
* B	wrong labels on planes menu (Artur G.)
* B	setting number of threads should happen immediately (Artur G.)
* B	specify libc6-dev as dependency on Ubuntu (Elaine N.)
* W	edit formula directly, including inner & outer
* B	instant julia preview all the time is distracting
* BB	inline formulas aren't saved
* BB	draws white boxes in explorer
* BB	no notification of compile errors when editing formulas
* BB	undo can lose warp param
* BB	warp_param menu loses warp param on load
* BB	painter doesn't work properly, draws rectangles

changes in 3.8:
* W	sliders for params with min/max
* BB	browse to .frm file doesn't appear to work
* W	more robust handling of unknown parameter settings
* BB	previews missing from 'open parameter file' dialog
* W	min, max functions
* W	added signs, direct signs coloring methods
* B	removed non-functional periodicity coloring method
* W	widescreen resolutions in drop-down
* W	show hints & captions on formula parameters
* BB	'list index out of range' nudging MandelbrotMix4 params (preview not updated)
* W	combined open dialogs

changes in 3.7:
* W	removed Gtk.ItemFactory and replaced with uimanager
* W	some other cleanup of old GTK+ backcompat code which is no longer required
* B	upload doesn't work immediately after authentication (creds not saved?)
* B	dismissing autozoom doesn't stop zooming
* WW	auto-tolerance
* W	new deepen icon
* BB	color preview loses tolerance until it's illegible
* B	fix .desktop file (Stewart Adams)
* B	behave better when no transcode installed
* B	add debian files to MANIFEST.in

changes in 3.6:
* B	don't install buildtools to site-packages
* B	run calc threads at normal priority - low prio unpredictably runs 2x slower sometimes
* W	change periodicity logic to apply more often & hopefully go faster
* W	--antialias command-line arg
* B	until antialias, seems to run single-threaded more often than not
* B	% complete > 100 when deepening with antialias off
* B	try to display the text of .cs files, which are binary
* B	Errors trying to parse .cs files
* W	period tolerance option
* B	Ubuntu 7.10 - gtk.ComboBox has no attribute menu_list when updating warp param
* B	Ubuntu 7.10 - "T instance has no attribute 'button'" in onMotionNotify
* B	firefox a more reliable default browser than mozilla
* B	Ubuntu 7.10 - 4way and angle widgets activate as soon as you mouseover, not on click
* B	after Flickr auth the upload dialog should show up immediately
* B	sys.path messed up - can't load basic.map on startup

changes in 3.5:
* BB	'list index out of range' loading pre-2.0 .fct files
* W	cut support for Python older than 2.4 and pygtk older than 2.6
* W	not fully working: use images in coloring methods
* B	fix default compiler options for mac os x
* W	fixes to make things work better on Mac OS X
* BB	params for MandelbrotMix4 formula contain embedded lists
* B	--trace wasn't working
* B	antialiasing setting not honored with --nogui
* W	added --tracez option
* BB	.cs files missing from gradient browser
* BBB	balefire.fct doesn't load
* B	error in avigen when PATH contains a missing dir
* B	error in explorer when gradients can't be found
* BB	UGR files not included in RPMs
* B	help display when not run locally messed up
* B	internal functions shown in docs
* B	3D and 4D arrays busted (now disabled)

changes in 3.4:
* W	support .ugr files
* W	added blatte*.ugr
* W	separated color editor and gradient browser
* B	deepen check was leaving odd pixels set
* B	clear_in_fates not working properly
* B	weird lines after deepening
* BB	browser doesn't always update with current formula

changes in 3.3:
* B 	better error message when no func name to --formula
* W	added #center variable
* B	on freebsd, gtkfractal.onmotionnotify, self has no x
* B	on freebsd, gtkfractal.onbuttonrelease, self has no x
* WW	transforms
* B	preview wrong when moving transform's 4-ways
* W	skip 'enabled' flag in defaults

fixed in 3.2:
* B	Problem clicking 'yes' to overwrite temp .fct files
* W	--nogui option
* BB	--map doesn't work
* W	makemap sort of works now
* B	fix .par color parsing
* BB	fixed mimetools problem with FC6 (and sporadically other systems)
* BBB	upgrade breaks since .gnofract4d contains wrong formula path

fixed in 3.1:
* WW	critical values + multiple basins/color schemes
* B	-p, --params flags broken (reported by Elaine Normandy)
* W	make gconf optional
* BB	use form 1, select warp_param, choose another form = disaster
* W	added Chebyshev formula
* WWW	Added Fractal Director (Branko Kokanovic)
* BBB	Can't save with python > 2.4, standard_b64encode missing
* WW	Added fate/basin code

fixed in 3.0:
* W	associate with file type?
* B	DeprecationError on pygtk 2.8+
* W	added maxiter cmd-line param
* W	added position, --trace cmd-line params
* W	--map cmd-line param
* W	warp_param menu
* B	warp_param menu should be hidden unless there are warpable params
* B	shouldn't need to compile anything to print help or version
* B	default param values: 'true' is case-sensitive, 'True' is false
* B	parse continuation lines correctly mid-token
* B	wrong line numbers when \ followed by blank line
* B	sp.ucl#AllInOne - compiler error, wrong type for abs (Int version of abs)
* W	smaller .fct files for easier sharing
* B	browser doesn't scroll to current func when opened
* BB	auto-generated names are wrong (image should == fractal name, 
        don't remove numbers once added)
* B	dmj.ufm:DHNovaJulka - '#magn' - no symbol starting with t__ is allowed
* W	added #magn symbol
* B	enum string comparisons should be case-sensitive
* W	load ColorSchemer palette files, added some handsome files


fixed in 2.14:
* B	KeyError: "symbol '#width' : no symbol starting with t__ is allowed
* B	allow fractint-style mid-token \'s
* BB	link error when compiled on suse-10.0
* W	warp_param

fixed in 2.13:
* WW	render to disk
* W	previews in open file dialog
* W	load .ufm etc files from cmd-line
* W	-v cmd-line arg
* W	antialiasing progress should be smoother and in 1 pass
* W	all progress should be in one pass
* BB	none of the formulas in fractint.ufm seem to work - bad bailout_var calc
* B	error compiling aho.ufm#Poly3_J: 'NoneType' object has no attribute 'datatype'
* B	standard.cfrm:triangle = all black
* BB	boolean negation (! operator) doesn't actually work
* BB	total size not updated when exploring, preview wrong
* BB	petri_dish.fct:'local variable i referencenced before assignment'
* BB	render queue only uses 1 CPU
* BB	RQ: progress jitters a lot on quick images
* BB	painter is broken


fixed in 2.12:
* B	exception printed when updating color widgets on later pygtks
* W	minor speedups in codegen and symbol table
* W	while loop in formulas
* B	didn't parse settings sections with uppercase chars (eg as.ufm)
* B	func param types not correctly inferred from default()
* B	color funcs without a default() don't work
* B	change transfer func, zoom, undo = displayed transfer changes back to ident (Edward Coffey)
* BB	when destroy decoration chosen, UI destroyed before save prompt
* W	recent files menu
* BB	saving causes image to redraw because of recent files menu
* BB	what if you have a Flickr account but are not a group member?
* W	post to blogs via Flickr

done in 2.11:
* WW	added Flickr sharing
* WW	register mime info
* W	documentation improvements
* W	View/Planes
* W	bug report
* W	added Send To command
* W	added named constructors for types, eg hyper(complex, complex)
* W	added eye_vector function 
* W	better randomized gradients
* W	--inner and --outer params
* B     @func * 3 gives weird error message
* B	directories appear in colormap list
* B	open other_maps/__readme.txt = index out of range
* B	you can declare the same parameter twice
* W	nicer error display in gradient dialog
* B	undo/redo loses "flip y axis" setting
* B	painter doesn't understand solid
* BB	desktop-file-install seems to do the wrong thing
* B	angle widgets don't always work when changing planes
* B	plane menu is available even if not is4D()
* BB	flickr access should be threaded so UI doesn't hang
* W	added argtype, FnParts, XBuffalo, YBuffalo
* BB	crash with multiple threads on x86-64 (Paul Wayper)
* BBB	tutorial.frm,createdocs.py not checked in
* BBB   python2.3 gives: AssertionError: unexpected number of RPM files found: ['build/bdist.linux-x86_64/rpm/RPMS/x86_64/gnofract4d-debuginfo-2.11-1.x86_64.rpm', 'build/bdist.linux-x86_64/rpm/RPMS/x86_64/gnofract4d-2.11-1.x86_64.rpm']
* B	app frozen on FC4 while browser/mailer running
* B	FC4: gtk.input_add deprecated, gtk.timeout_add should be gobject.timeout_add
* BBB	slave completely broken on python2.2

done in 2.10:
* B	removed all DeprecationWarnings
* W	display settings in main window
* W	load/save dialog improvements
* W	list of formula directories saved in preferences
* W	fullscreen mode
* BB	daz.ucl: Lattice: C compiler error, invalid args to %
* W	fourways in fract parameters, incl. tips
* BB	default params not set when formula loaded from command-line
* BB	painter fixed
* BBB	cursor keys in fract params cause redraw
* BBB 	update spec for RPMs to use desktop-file-install (per DAG spec)
* BBB   load tumor.fct, set formula=Buffalo = crash (cmap deleted too early)
* BB	two copies of settings window if you Ctrl+F twice

done in 2.9:
* BB	Couldn't load some .fct files saved by 2.7
* BB	colormap gets reset when change formula
* W	added formula cmd-line argument

fixed in 2.8:
* B	jock.ufm:neptwona = "complex z = #pixel", ie redeclare z
* BB	horrible dots during pass 2 for formulas which redeclare z
* B	coolness.fct - need direct coloring algorithm
* W	direct coloring algorithms
* B	old rgb colorizers don't work
* B	bool params wouldn't load correctly
* W	color params in GUI
* W	color func params
* B	parse periodicity in formulas and .fct file
* W	make gradient() function work. 
* BB	@_gradient differs from f.gradient
* BB	save gradient twice
* BB	gradient doesn't use in/out density/transfer/offset
* BB	opening browser should select current fractfile and formula
* B	$undef support

Done in 2.7:
* W	randomize colors tool
* W	painter tool
* B	painter shouldn't paint on click&drag
* B	crash when allocate too large an image
* B	should disable flip2julia if not is4D()
* WW	enum, int, bool parameters
* W	initial gradient stuff (chris le sueur)
* B	collapsar preview different color from main image
* BBB	explorer doesn't work properly with int/enum/bool params?
* W	use fancy new filechooser dialog when available
* W	implement $IFDEF
* BB	hyperjulia doesn't work with continuous-potential coloring
* WW	load/save gimp gradient files:
* BB	opening color browser sometimes applies 1st item
* BB	click on colormap calls calc() twice
* BB	solid colors not used reliably
* B	hlsrain5.map, ribbon20.map caused GdkColormap.alloc_color() problem
* WW	cmap editor
* W	added standard.ucl
* BB	randomize colors doesn't work
* W 	gradients: optimize colormap conversion to remove useless segments
 
Done in 2.6:
* W	prefs dialog option to change number of threads
* BBB	open parade.fct, go to outer, change density = gtk-ERROR
* BB	overwriting files doesn't work
* BB	settings dialog doesn't update - can't repro
* BB	CCL formula doesn't work
* BB	resetting doesn't change bailout text in settings dialog
* W	added CCL formulae
* W	added initial fractint-builtin
* BB	trigcentric.fct no longer works
* B     related to failure in test_fc.testDoubleCompile?
* B	use libdir for private path to clean up FreeBSD install
* B	catch distutils exception on Mandrake

done in 2.5:
* BB	if formula didn't mention z, compilation failed
* W	hypercomplex mandelbrot set

done in 2.4:
* BB	more robust error reporting
* B	error messages not showing up
* W	cosxx function
* B	missing power in Newton function
* BB	fixed formula load
* B	compiler error on start won't let gf4d open
* B	can't use auto_deepen prefs widget after auto_deepening (Joe Healy)
* B 	(also introduced in 2.4) - yelp not run in background
* B	make transition <-> explorer mode less slow + ugly
* B	maxiter isn't updated due to auto-deepening

done in 2.2:
* W	speed up 'instant recolor'
* W	recoloring
* B	deepening doesn't happen until aa pass
* BB	close window with decoration = gtk-critical complaints
* W	reselect current fname and formula when reopening browser
* W	if #zwpixel not used, disable 4D in toolbar and explorer
* B	fix security bug
* B	compile on FreeBSD
* W	current angle in status bar
* W	drop-down resolution chooser
* B	method=multipass = compile error
* W	sort formula files by name
* B	jgr.ufm:Birch - compiler bug!
* B	open formula file on .cfrm should go to correct page in browser
* B	multiple copies of same filename

2.1:
* W	auto-list all formula files on path, parse on first click
* B	prompt if not saved
* W	tdis, other fractint colorfuncs
* B	Undo/redo behaves weirdly sometimes 
* W	periodicity
* WW	doc
* W	command-line arguments
* W	add some more built-in types
* W	Browser: remember selected formula on compile
* W	Browser: if no compile errors, reapply current formula
* W	Browser: run $EDITOR, refresh
* W	warn before quitting or save current fractal to autosave by default?
* B	translationerror on load doesn't pop up
* B	change width or setting to something which isn't a number/float: 
	ValueError in set_prefs, set_initparam etc
* BB	mandrake9.2 RPM - fract4d libs install to python2.2 directory, 
	python2.3 can't find them.
	Then RuntimeWarning when loaded - python C API has different version.
* B	sometimes deepen button doesn't work
* B	standard.cfrm:smooth = error "all parameters must be floats"
* BB	setting val for inner=flat changes bailout for formula 
	(but not visibly in GUI)
* W	UI for parameters for colorfuncs
* BB	tower_of_thorns doesn't load 
* B	rest doesn't change colorfunc paramsx
* B	saving a fractal with a parameterized cfunc = index out of range
* B	if load rgb colorizer .fct, report ValueError: Empty color array
* WW	angle and 4way widgets
* W	weirdness setting 
* W	explorer mode
* B	temp variables in colorfuncs persist across compilations?
* W	keyboard shortcuts for all widgets
* B	fn1..4 appear in random order in dialog box
* B	shrink image while drawing: python: fract4d/c/image.cpp:40: virtual void image::put(int, int, s_rgba): Assertion `off + 2 < bytes()' failed.
* B	load frm not on search path, undo = IOError "can't find formula file"
* B	setting inner func has no effect
* B	zooming broken if y-axis is flipped
* B	ejection_distance broken (Errors:
	invalid type complex for / on line 51, expecting float
	Warnings:
	Uninitialized variable @bailout referenced on line 51)
* BB	novamount.fct
* BB	auto-tolerance for older fractals
* BB	skull_fairy.fct
* WW	Inner, Outer pages for settings notebook
* BB	old images are flipped left-to-right. 
	- xy-rotating by #pi != vertical flip
* W 	browser : color funcs vs normal funcs
* W	init z from #zwpixel
* BB	lattice.fct - 1.9 is wrong too!
* B	buffer out of range when image is smaller than window
* B	3rdim01 - p1=(0.5,0.3). Flipped across x axis. 
	Gf4d has y increasing down, Fractint has it increasing up
* B	3daMand01,02 - left half of image (x < 0) is black
* B	browser pops up whenever click on fractal
* W	formula browser : load formula file
* BBB	crash when edit fractal parameters: G_IS_OBJECT(object) failed
* W	make default fractal more interesting
* B	Reset changes antialiasing
* B	mandelbar is a circle (?)
* B	defaults not applied when choose fractal
* B	weird line breaks in "formula contains a fractint-style..."
* B	apply newton, nova -> unsubscriptable object in get_func_value
* B	"(Untitled Mandelbrot)" name not updated when formula changed
* W	formula browser: apply to current fractal
* B	default size for browser is too small
* B	really wide edit box in formula browser
* B	apply "cubic burning ship", "lambda" -> list index out of range
* BB	reset on fragment.fct -> blank screen
* W	added defaults to gf4d.frm
* W	save images
* WW	save parameter files (define a format first)
* B	set_initparam didn't trigger parameters-changed
* BB	load dubious.fct, undo/redo = gone, black screen instead
* B	shouldn't start drawing original before loading params on cmd-line
* BB	acos,acosh,asin,asinh,atan,atanh,cotan,cotanh give 'str not callable'
* B	selected func in fractal settings dlg not updated by undo/redo
* B	change func then undo causes problems
* W	compiler properties
* W	store user preferences
* B	flip2julia puts 2 undo entries, + doesn't produce correct answer
* WW	undo/redo
* B	reset messes up undo order?
* W	combine 2 classes in gtkfractal.py
* W	auto_deepen, antialiasing widgets
* W	set size of diff_bailout check from periodicity info
* W	SMP/nthreads > 1
* B	exception if you open and choose OK without selecting a file
* B	test_fract4d.testMiniTextRender unreliable - initparams missing?
* WW	support different bailout functions
* WW	bailFuncs
* W	user parameter functions
* W	there is no warning before files are overwritten (parameter files +
	pictures)
* B	undo/redo cause recompilation

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