Add autoload cookies

* darkroom.el (darkroom-mode, darkroom-tentative-mode): Add autoload cookie.
(darkroom-tentative-mode): Use `declare-function` to try and
shoosh byte-compiler.

Prepare for inclusion in GNU ELPA

Assign copyright to the Free Software Foundation and add Maintainer:
header.

Fix darkroom-tentative-mode when switching window's buffer

* darkroom.el (darkroom--enter-or-leave): Call `darkroom-enter'
with non-nil JUST-MARGINS.
(darkroom--enter): Add JUST-MARGINS.

Fix margin calculation yet again.

For scaled char widths the margin width, in columns, also has to be
scaled accordingly.

* darkroom.el (darkroom-verbose): New variable.
(darkroom--window-width): New function.
(darkroom-guess-margins): Use it.
(darkroom--reset-margins): Cleanup.

Merge pull request #1 from syohex/require-cl-lib

* darkroom.el: load cl-lib

load cl-lib

Fix automatic margin calculation

* darkroom.el (darkroom--real-window-width): Removed horrible hack.
(darkroom-guess-margins): Calculate with pixel widths.

Fix `darkroom-tentative-mode'

* darkroom.el (darkroom--margin-factor): New variable.
(darkroom--set-margins): Consider `darkroom-margin-factor'.
(darkroom--reset-margins): Always reset margins to 0.
(darkroom-increase-margins): Implement with `darkroom--margin-factor'.
(darkroom--enter): Renamed from `darkroom--turn-on'. Don't afect hooks here.
(darkroom--leave): Renamed from `darkroom--turn-off'.
(darkroom--enter-or-leave): New function.
(darkroom-mode): Use `darkroom--enter' and `darkroom--leave'. Set
window change hook here.
(darkroom--maybe-enable): Removed.
(darkroom-tentative-mode): Redesign.

* darkroom.el (darkroom--margin-factor): New variable.
(darkroom--set-margins):

Redesign setting of margins, which now works per-window

`darkroom-tentative-mode' is now broken, but the rest now works
better.

* darkroom.el (darkroom-margins): New semantics for function value.
(darkroom--real-window-width): Compensate for margins that might
already be there.
(darkroom--guess-margins-statistics-cache): New variable.
(darkroom-guess-margins): Use a cache.
(darkroom--compute-margins): Take WINDOW aprameter.
(darkroom--buffer-margins): Removed.
(darkroom--set-margins): Redesigned.
(darkroom--reset-margins): New function.
(darkroom-increase-margins): Unimplement.
(darkroom--saved-variables, darkroom--saved-state): New variables.
(darkroom--turn-on): Redesign.
(darkroom--turn-off): Redesign.
(darkroom--maybe-enable): Check for `darkroom--saved-state'.

Attempt a clearer design of modes

* darkroom.el (darkroom--turn-on): New function.
(darkroom--tentative-mode-driving): Removed this.
(darkroom-mode): Use new `darkroom--turn-on' and
`darkroom--turn-off'.
(darkroom-tentative-mode): Assert that no `darkroom-mode' and
`darkroom-tentative-mode' are mixed.
(darkroom--turn-off): New function.

Corrections after another review iteration with Rasmus

* darkroom.el (darkroom-margins): New default.
(darkroom-margins): Tweak docstring.
(darkroom-margins): Better type spec.
(darkroom-margins-if-failed-guess): New defcustom.
(darkroom--real-window-width): New function.
(darkroom-guess-margins): Simplified.
(darkroom--compute-margins)
(darkroom--saved-mode-line-format)
(darkroom--saved-header-line-format, darkroom--saved-margins): Add
docstring.
(darkroom-mode): Added an assertion.
(darkroom--tentative-mode-driving): New variable.
(darkroom--maybe-enable): Use `darkroom--tentative-mode-driving'
(darkroom-mode): Attempt to ensure `darkroom--set-margins' always
happens after `darkroom--maybe-enable' in
`window-configuration-change-hook'.

Minor tweaks

* darkroom.el: Rewrite "Commentary" section
(darkroom-margins): Don't mention `darkroom--set-margins'.
(darkroom-guess-margins): Use `truncate', not `round'

Prefix internal symbols with "darkroom--"

* darkroom.el (darkroom--compute-margins)
(darkroom--float-to-columns, darkroom-buffer-margins)
(darkroom--set-margins, darkroom--saved-mode-line-format)
(darkroom--saved-header-line-format, darkroom--saved-margins)
(darkroom-tentative-mode): Internal variables and functions now
prefixed "darkroom--".

Add some docstrings

* darkroom.el:
(darkroom-increase-margins, darkroom-decrease-margins): Add docstring.

Add (still non-functioning) `darkroom-compute-margins'

* darkroom.el: Require 'cl-lib
(darkroom-guess-margins): New function for putting in
`darkroom-margins'. But broken due to `window-width' not being
suitable probably.
(darkroom-compute-margins): Redesigned.
(darkroom-set-margins): Don't `darkroom-compute-margins'
(darkroom-mode): Reordered statements.

Tidy up margin calculation

* darkroom.el (darkroom-compute-margins): Renamed from `darkroom-margins'.
(darkroom-buffer-margins): New variable.
(darkroom-set-margins): Redesign. Set `darkroom-buffer-margins'.
(darkroom-increase-margins): Redesign.
(darkroom-mode-map): Fix whitespace.
(darkroom-mode): Use `set-mark-local-variable'
(darkroom-mode): Save and restore current margins.
(darkroom-tentative-mode): Fix whitespace.

Integrate another comment from Rasmus

* darkroom.el (darkroom-margin-increment): New defcustom.
(darkroom-increase-margins): Take a parameter.
(darkroom-decrease-margins): Use `darkroom-increase-margins'

Integrate some comments from Rasmus

See http://permalink.gmane.org/gmane.emacs.devel/179381 for the
discussion.

* darkroom.el: Add file header.
(darkroom): Add customization group.
(darkroom-margins): Make it a `defcustom'.
(darkroom-turns-on-visual-line-mode): ditto.
(darkroom-mode): Improve docstring.
(darkroom-fill-paragraph-maybe): Removed.
(darkroom-visual-mode-maybe-enable): Removed.
(darkroom-mode): Improve docstring.
(darkroom-mode): Use `darkroom-text-scale-increase'
(darkroom-maybe-enable): Comment out debug code.
(darkroom-mode): Don't `darkroom-visual-mode-maybe-enable'
(darkroom-mode-map): Don't bind `darkroom-fill-paragraph-maybe'.
(darkroom-saved-visual-line-mode): Removed.
(darkroom-text-scale-increase): New defcustom.

Add .gitignore

Leave darkroom-mode when leaving tentative-mode

* darkroom.el (darkroom-tentative-mode): Leave minor mode as well when leaving
tentative-mode.

Now works with multiple windows for same darkroom buffer

* darkroom.el (darkroom-set-margins): set for every window separately.
(darkroom-fill-paragraph-maybe): Be smarter we filling
paragraph. TODO: use remap.
(darkroom-saved-mode-line-format)
(darkroom-saved-header-line-format)
(darkroom-saved-visual-line-mode): new buffer-local vars.
(darkroom-visual-mode-maybe-enable): new function.
(darkroom-mode): Remove hack here.
(darkroom-maybe-enable): new function.
(darkroom-tentative-mode): New minor mode.

darkroom-mode added

first commit

fix: save HEADER-LINE-FORMAT as well

fix: DARKROOM-CONFIRM-FILL-PARAGRAPH -> DARKROOM-FILL-PARAGRAPH-MAYBE

Initial commit