* Minor updates to the min & max cache sizes (16 & 64MB). Mostly to satisfy my power-of-two OCD.
* Purge broken on-disk cache files
* Optimize free RAM computations
* Start dropping LRU items when running low on memory before pre-rendring (hinting) pages in non-reflowable documents.
* Make serialize dump the most recently *displayed* page, as the actual MRU item is the most recently *hinted* page, not the current one.
* Use more accurate item size estimations across the whole codebase.
TileCacheItem:
* Drop lua-serialize in favor of Persist.
KoptInterface:
* Drop lua-serialize in favor of Persist.
* Make KOPTContext caching actually work by ensuring its hash is stable.
Includes:
- MathML: a few minor fixes
- (Upstream) lvtext: fix possible index out of range
- Fonts: RegisterExternalFont() should take a documentId
- Fonts: fix: letter-spacing should not be applied on diacritic
- (Upstream) Fonts: more granular synthetic weights
- Fonts: synthesized weights: tweak some comments
- Fonts: keep hinting with synthetic weight
- Fonts: fix synthesized weight inconsitencies
- Fonts: fix getFontFileNameAndFaceIndex()
- Fonts: adds LVFontMan::RegularizeRegisteredFontsWeights()
- Fonts: handle synth_weight tweaks in glyph/glyphinfo slots
- (Upstream) Fonts: fix some compiler warnings
- Fix hyphenation on Armenian and Georgian text
Update the bottom menu widget "Font Weight" to allow more
granular weights than the previous "regular | bold".
Also bump thirdparty/luasec to v1.0.1.
* Wireless: Optimize memory usage in StreamMessageQueue (use an array of string ropes, that we only concatenate once). Allowed to relax the throttling, making transfers that much faster.
* Persist: Add a "zstd" codec, that uses the "luajit" codec, but compressed via zstd. Since both of those are very fast, it pretty much trounces everything in terms of speed and size ;).
* Persist: Implemented a "writes_to_file" framework, much like the existing "reads_from_file" one. And use it in the zstd codec to avoid useless temporary string interning.
* Metadata: Switch to the zstd codec.
There have been a couple of these this month, and keeping stuff that should only ever run once piling up in their respective module was getting ugly, especially when it's usually simple stuff (settings, files).
So, move everything to a dedicated module, run by reader.lua on startup, and that will actually only do things once, when necessary.
It appears the fancy split settings from #6885 were not being honored at all.
Also:
* Made sure "pagewidth" is actually the default zoom mode again, "full" had sneaked in as the default state of the zoom type toggle).
* Display human-readable values in the "Make as default" popup, instead of the raw, meaningless numerical setting.
* Disable zoom options when reflow is enabled, and restore 'em properly when it's disabled.
Fix#7461, #7228, #7192
Followup to #7306.
As discussed there, the only way to make everybody happy is to make 'em context-aware. At which point, trying to make the fact that it's a *device* rotation and not a *content* one come across in the icon design loses its interest, and would actually only further muddy the issue.
So, these are similar is spirit to the traditional rotation icons in pretty much anything that can rotate text content, with a special inspiration from the Kindle 4 & PocketBook UI.
Fix#7429
* LuaSettings/DocSettings: Updated readSetting API to allow proper initialization to default.
Use it to initialize tables, e.g., fixing corner-cases in readerFooter that could prevent settings from being saved.
(Fixes an issue reported on Gitter).
* LuaSettings/DocSettings: Add simpler API than the the flip* ones to toggle boolean settings.
* Update LuaSettings/DocSettigns usage throughout the codebase to use the dedicated boolean methods wher appropriate, and clean up some of the more mind-bending uses.
* FileChooser: Implement an extended default exclusion list (fix#2360)
* ScreenSaver: Refactor to avoid the pile of kludges this was threatening to become. Code should be easier to follow and use, and fallbacks now behave as expected (fix#4418).
Includes:
- LVString: Fix a c/p issue in lString8::atoi64
- LVTextFm: Simplify and fix resizeImage logic
- LVXMLParser::ReadText(): fix parsing at buffer boundaries
- TextLang: fix lang_tag first part comparison
- CSS font-family: fix parsing of 'inherit' and '!important'
- CSS: support a few -epub-* and -webkit-* properties
- Text fragment flags: add LTEXT_HAS_EXTRA
- CSS: add support for 'line-break' and 'word-break'
- Menu widget: allow specifying the number of items per
page and the item font size, so we can use other values
than the default File browser ones
- Menu: fix setDirty when a border is used
- ToC: add item per page and font size settings, make
Alternative ToC more visible (was previously
available on long-press on Table of contents)
- Bookmarks: add item per page, font size, size reduction
- Progress bars (Skim widget and footer): allow selecting
ToC depths from which ticks are made.
as it is used for the "Set as default" popup.
This allows having that text accurate on widgets without an
actual name_text (e.g., the font size wheel).
Fix#7231
Co-authored-by: Frans de Jonge <fransdejonge@gmail.com>
Rework Dual pages code so that the view is considered
a single page number, so it looks more like 2-columns
on a single page.
This solves a few issues like:
- Page number and count are consistent between top
and bottom status bars
- SkimTo -1/+1 doing nothing every other tap
- Statistics being wrong (like "Pages read" never
going over half of the book page count)
* Fix typo in dropbox
Reported by @lescheck
* Rephrase text justification explanation more elegantly
* CoverBrowser: fix up some plurals
* Statistics: remove random use of template function
* Use ngettext for minute/minutes and second/seconds
* Change KB/MB/GB to kB/MB/GB SI units
Hide bottom panel when showing a SpinWidget, so we gain
on the bottom the space covered by the SpinWidget to see
more how a change is affecting the book text.
For clarity, rename delay_repaint & refresh_callback
to hide_on_apply & when_applied_callback.
Normalize SpinWidgets: have them both accept a
cancel_callback and a close_callback.
InfoMessage: call dissmiss_callback also on timeout.
Rework eb66856d so that "Sync T/B Margins" is disabled
when set Top and Bottom margins differ (previously,
the bottom one was taking over the top one when
it was enabled).
* Wherever possible, do an actual dumb invert on the Screen BB instead of repainting the widget, *then* inverting it (which is what the "invert" flag does).
* Instead of playing with nextTick/tickAfterNext delays, explicitly fence stuff with forceRePaint
* And, in the few cases where said Mk. 7 quirk kicks in, make the fences more marked by using a well-placed WAIT_FOR_UPDATE_COMPLETE
* Fix an issue in Button where show/hide & enable/disable where actually all toggles, which meant that duplicate calls or timing issues would do the wrong thing. (This broke dimming some icons, and mistakenly dropped the background from FM chevrons, for example).
* Speaking of, fix Button's hide/show to actually restore the background properly (there was a stupid typo in the variable name)
* Still in Button, fix the insanity of the double repaint on rounded buttons. Turns out it made sense, after all (and was related to said missing background, and bad interaction with invert & text with no background).
* KeyValuePage suffered from a similar issue with broken highlights (all black) because of missing backgrounds.
* In ConfigDialog, only instanciate IconButtons once (because every tab switch causes a full instantiation; and the initial display implies a full instanciation and an initial tab switch). Otherwise, both instances linger, and catch taps, and as such, double highlights.
* ConfigDialog: Restore the "don't repaint ReaderUI" when switching between similarly sized tabs (re #6131). I never could reproduce that on eInk, and I can't now on the emulator, so I'm assuming @poire-z fixed it during the swap to SVG icons.
* KeyValuePage: Only instanciate Buttons once (again, this is a widget that goes through a full init every page). Again, caused highlight/dimming issues because buttons were stacked.
* Menu: Ditto.
* TouchMenu: Now home of the gnarliest unhilight heuristics, because of the sheer amount of different things that can happen (and/or thanks to stuff not flagged covers_fullscreen properly ;p).
* Bump base
https://github.com/koreader/koreader-base/pull/1280https://github.com/koreader/koreader-base/pull/1282https://github.com/koreader/koreader-base/pull/1283https://github.com/koreader/koreader-base/pull/1284
* Bump android-luajit-launcher
https://github.com/koreader/android-luajit-launcher/pull/284https://github.com/koreader/android-luajit-launcher/pull/285https://github.com/koreader/android-luajit-launcher/pull/286https://github.com/koreader/android-luajit-launcher/pull/287
By having the same DoubleSpinWidget launched when
hitting "..." on any of Top margin or Bottom margin
progress bars.
DoubleSpinWidget: remove blank space when no info_text.
- Add IconWidget, use it for icons instead of ImageWidget.
Specify icons by name only, look for them (with either
.svg or .png suffixes) in multiple directories (including
koreader/settings/icons/ to allow customizing them).
Don't crash when icon name not found, shown a black
background warning icon instead.
- Don't trust the icons' native sizes: replace
scale_for_dpi=true with width/height=DGENERIC_ICON_SIZE,
so all icons get the same (tunable) size - except in
a few specific use cases.
- Top and bottom menu bars: normalize, and have icons
properly centered in them, extend vertical line
separators up to the edges.
- TOC: adjust expand/collapse icons size to items size
Avoid crash with RTL UI after options we moved.
Swap Zoom direction items when RTL UI.
Also don't check show_func when sizing the names
on the bottom menu, to avoid icons moving or
resizing when toggling options.
- Move zoom options from top menu to bottom config
- Add option to manually define zoom (relative to
page width) and overlap (in percent)
- Add options to zoom to columns or rows, possibly
with overlap. Add panning direction options when
page forward in these modes
Includes:
- Update German hyphenation patterns
- (Upstream) Adds ODT (ODF) format support
- TextLang, hyphenation: add Basque, Croatian, Esperanto,
Estonian, Georgian, Latvian, Lithuanian, Macedonian,
Occitan, Welsh; update Bulgarian, Irish, Portuguese,
Slovak, Dutch, Norwegian, Spanish; update hyphen min
for Czech, English, Greek; fix Romanian and Ukrainian
pattern file names
- HyphMan: adds HyphMethod::getLeft/RightHyphenMin()
- epub.css: update HR default style
- fb2.css: keep <date> in main text left-aligned
- getRenderedWidths(): inline-block and table fixes
- CSS: avoid style hash mismatch when serializing content:''
- Tables: re-order row groups when necessary
- XML parsing: don't drop trailing text
- HTML parser: tweak implicit head/body insertion code
- Fix text search failure when blank at start or end
readertypography.lua: some cleanup by removing the first
table listing hyph dicts, and including their filenames
in the second table so we can build the first table
dynamically. Also fetch hyph left/right min limits from
crengine to not have to duplicate them here and keep them
in sync.
css_tweaks.lua: for in-page footnotes, switched from
"-cr-only-if: epub-document" to ": -fb2-document"
("not" FB2 documents), so these tweaks also work with
DocX and ODT footnotes.
Also included in base bump:
- KOPTContext: add comic panel detection function/additional
leptonica declarations
- Forcibly disable docs when building giflib
Includes:
- (Upstream) LVBase64NodeStream: fix possible segfault
- (Upstream) Fix getting encoding from HTML META tags
- FB2: also look for cover in <src-title-info>
- FB2: fix cover image colors
- FB2: don't draw cover in scroll mode
- TextLang: better linebreaks at em-dash (EN/ES/FR)
- TextLang: increase _lb_props static array size
FB2 footnotes style tweaks: avoid gap above first footnote,
caused by the title bottom margin collapsing into it.
Avoid conflicts having "In-page EPUB footnotes (smaller)"
affects FB2 documents that use "<a type=note>12</a>" which
would then get smaller if both tweaks are enabled (which
they are, by default).
Also switch "-cr-hint: strut-confined" from being set on "*"
to being set only on "body", now that it is inherited.
Footnote popups: add styles for some non-HTML FB2 tags,
so MuPDF can render them as expected.
* landscape FM / Refactor rotation
refactor and simplify the orientation handling code. the user generally cares about the rotation (what direction the device is facing) and not about if koreader is displaying in portrait or landscape mode
* bump base
update luasocket, libjpeg-turbo, curl
add logging to evernote-sdk-lua
update framebuffer for proper rotation
dofile() wasn't enough to copy en_keyboard, as the references
to key popups would still be shared, and hacks to them (as
done by the FR keyboard) would be active on the EN keyboard.
Also, for the FR Keyboard:
- bring M key popup too when moving it to 2nd row.
- keep original ',' and '.' as on EN keyboard.
- add ';' instead of ',' as the added key, and let it have
some key popup too, with keys helpful when CSS editing.
Includes:
- GIF decoding: avoid crash on some images
- Top progress bar: avoid re-computing when not needed
- Top progress bar: allow external filling of marks
- CSS/Text: properly inherit and handle text-align-last
- getRenderedWidths(): fix handling of text-indent
- Reorder some flags to make the sets clearer
- CSS: support more white-space named values
- Text: fix standalone BR not making an empty line (rework)
- CSS: support for pseudo elements ::before & ::after
- CSS: content: open-quote support via TextLangMan
- CSS/Text selection: adds a few "-cr-hint:" tweaks
cre.cpp: adds setHeaderProgressMarks()
Added 2 style tweaks to disable pseudo elements
::before/after and common ligatures.
Using DoubleSpinWidget.
Also keep SpinWidgets open on Apply.
Added little trick: if widget has been moved, close
bottom config menu on next Apply to show more of
the book.
Mostly for the PDF bottom menu.
- Reorganize by topic, trying to limit the number
of widgets per panel to 4.
- Re-order some toggles from low to high ('off' then 'on').
- Show font size as number instead of a list of "Aa".
- PDF: add more font size values, and increase usable
contrast values.
- Add help_text to most PDF toggle titles.
- CRE line spacing: increase fine tuning min and max.
Also avoid zoom advice messages on book load.
Bump crengine:
- Text: fix occasional BiDi bad word splitting
- Font: fix HB fallback measurement/drawing mismatches
- Font: do not add letter spacing on diacritics
- Text: tunable use of letter spacing for justification
- Text: dont adjust space after initial quotation mark/dash (rework)
- Text: fix possible bad widths after collapsed spaces
xtext.cpp: pick crengine fix with HB fallback
measurement/drawing mismatches
Adds "Word Expansion" to bottom Font size menu, and moved
"Word Spacing" there too, to balance the panels' heights
to 4 items.
- Add some style tweaks to allow displaying FB2 end notes
in-page too - and to allow showing them without a smaller
font size.
- Show footnote number in bold in popup footnotes.
Set these 2 tweaks as default global tweaks for new users
(and existing users that have not set any global defaults).
One can disable them by long-press on each of them.
Only per-specs EPUB and FB2 footnotes (other in-page footnotes
tweaks may trigger on non-footnote content on some books, so
let enabling them be a user decision).
- FB2 footnotes are no more rendered in-page by default
- In-page rendering can be enable by the added Style tweak
- FB2 footnotes can also show in footnote popup (with
some added not-so-nice CSS so MuPDF can render them
as crengine)
Try to limit the nb of items per menu page to 5 or 6 by
splitting related ones into sub-menus, so we get more
room below to see how they affect the content.
Adds "No indentation on first/following paragraphs" and
"Paragraphs margins and paddings", and Links underlining.
bidi.lua:
- Revert "Alias everything to Bidi.nowrap() when in LTR UI,
as using LTR isolates seems uneeded when already LTR" (part
of a628714f) which was a wrong assumption: we need proper
wrappers for all things paths. Enhance some of these wrappers.
- Fix GetText RTL wrapping which was losing empty lines and
trailing \n.
- Wrap all paths, directories, filenames in the code with
these wrappers.
- Wrap all book metadata (title, authors...) with BD.auto(),
as it helps fixing some edge cases (like open/close quotation
marks which are not considered as bracket types by FriBiDi).
(Needed some minor logic changes in CoverBrowser.)
- Tweak hyphenation menu text
- Update forgotten SortWidget for UI mirroring
- KoptConfig: update "justification" index for RTL re-ordering,
following the recent addition of the page_gap_height option.
The Japanese keyboard still needs to be cleaned out a bit more at some point, but the important thing is that this commit fixes#5632 by restoring the kanji layer with the voiced-unvoiced conversion symbol.
Small tweaks all around to handle UI mirroring:
- swap existing symbols like arrows, or use alternative ones
- rotate some images, like chevrons and dogear icons
- flip some left and right swipe handling
- flip some geometry arithmetic like tap on left or right
side of page or dict window
- use new ProgressWidget:getPercentageFromPosition() instead
of geometry arithmetic
- BD.wrap() some concatenated string bits, like in reader
and menu footers
- flip inverse_reading_order when UI is mirrored
More specific tweaks:
- ReaderGesture: reset some specific gestures when UI direction
has changed (tap on top/bottom left/right corners, for
bookmarks and FileManager "Plus menu").
- ReaderRolling: show markers on the correct side of page,
in single or dual page mode.
- KoptOptions: swap left and right icons in Alignment toggle
- CheckMark: proper rendering in all 4 mirroring/rtl combinations.
- VirtualKeyboard: forbid any mirroring
- Move util.getMenuText into Menu.lua
Changes in this commit:
- Fix arrays to large (10 elements instead of 8) copied from the old keyboard system. Issue introduced in #5610
- Add ё popup.
- Change shift key as per #5659 (for both ro and ru keyboards)
- Translate Russian space and symbol keys.
- Rename Sym key to 123
This adds a new separate Romanian keyboard layout, with popup support.
- Functional buttons are translated.
- Pages 5&6 contain 3 groups of characters (I tried my best to group them logically):
- On the left: traditional Romanian cyrillic pre-1850s
- On the middle latinised forms from 1850s onwards
- On the right modern diacritics from 1900s to today
- Pages 7&8 add only large double quotes and section/paragraph mark.
- Popups are only avalable for most common diacritics. Swipe up for circumflex, swipe down for breve.
I can really call this the most complete though-the-ages Romanian keyboard. :)
Includes:
- New option to tune word spacing: space width scale percent
- Text: look for hyphenation in more words if needed
- CSS: fix "hyphens:none" should override inherited "hyphens:auto"
- getHtml(): grab dir= and lang= attributes from upper nodes
Replace our Word Gap/Space condensing toggle/setting with
a new Word Spacing toggle/setting, made of 2 values:
- 1st number scales the normal width of spaces in all font
(100% uses the font space width untouched)
- 2nd number applies after the 1st has been applied, and
tells how much these spaces can additionally be condensed
to make more text fit on a line.
The korean keyboard wraps InputText and overrides some
of its methods to process input in some specific way.
When switching to another keyboard layout, the original
methods need to be restored.
* Switch the last few remaining icons to true glyphs
(Del/Backspace & Enter).
Also, allow a glyph to be rendered in (fake) bold, and use it for Enter.
* Update fonts
Pickup the tweaked nerdfonts for the backspace symbol
Follow-up to #5583.
* Add separate Cyrillic/Russian keyboard
* And remove that from English
* Update French keyboard (is easy)
* Remove yahzhert, that was just a double of QWERTY
* Update Spanish keyboard
* Reduce Japanese to 4 layers and add globe
* Reduce Korean to 4 layers
* Reduce Greek to 8 layers
It might be slower, but is needed to properly display
books in arabic, indic...
Also bump crengine: use FreeType "light" hinting algorithm,
which hints on the y-axis only (and so avoid messing with
advances and kerning on the x-axis).
bump crengine: enhanced RTL block rendering.
Includes:
- Re-enable: Use the same FT load flags in HB as in FT
- Avoid redundant calls to getStyle()
- CSS: parse and store "direction:"
- Enhanced block rendering: handle RTL direction
- Enhanced block rendering: handle RTL tables
- Pagesplitting: account for lines' text direction
- CSS: add support for more pseudo-classes
- epub.css: a few updates for RTL documents
- Fix LVDocView::getBookmark() which could be slow or wrong
Add a few style tweaks useful to RTL readers.
Wikipedia Save as EPUB: build proper RTL documents from
persian, arabic, hebrew (and others) Wikipedia articles.
Thanks to <https://github.com/koreader/koreader/pull/5237> we can now extract the knowledge currently embedded in Transifex and put it directly in our source. This positively affects <https://github.com/koreader/koreader/issues/3754>.
Translation instructions and knowledge that comes out of localization-related questions should be preserved in the source, because Transifex is too ephemeral. For example, the links from <https://github.com/koreader/koreader/pull/2290> are no longer accessible. Even when they are, it's quite useful to have this information around while dealing with the code as well, and I also hope it'll be informative to contributors who seldom visit Transifex.
This commit also makes a few minor changes to obviate the need for comments where possible.
This commit standardizes the various todos around the code a bit in a manner recognized by LDoc.
Besides drawing more attention by being displayed in the developer docs, they're also extractable with LDoc on the command line:
```sh
ldoc --tags todo,fixme *.lua
```
However, whether that particular usage offers any advantage over other search tools is questionable at best.
* and some random beautification
This introduces context to our strings to differentiate them when necessary.
The syntax chosen is `C_()`, following [glib](https://developer.gnome.org/glib/2.28/glib-I18N.html#C-:CAPS).
```lua
local _ = require("gettext")
local C_ = _.pgettext
C_("Menu|StyleTweaks|", "Pages")
```
Closes#5232.
The current name causes people to think of scrolling, which is slightly awkward on E Ink. For example, see <https://github.com/koreader/koreader/issues/5166#issuecomment-517771475>.
> But this on LCD, not E-ink where the lag is unbearable, especially if you want to correct any scrolling over/undershoot.
Scroll mode is a misnomer. It should be renamed continuous. I use "scroll mode" as the default, but I seldom or never scroll. Conversely, you can still scroll in paged mode if a page is longer than the screen. As far as I'm concerned if you're scrolling (panning) you may be doing it wrong, but to anyone reading: you do you. ;-)
Provides a bit more granularity than the generic "Ignore all
publisher margins" - and allow the same for paddings for books
that wrongly use paddings for that effect.
- Updated "Avoid page break" tweaks to work on our latest epub.css.
- Added "New page on headings>" menu, as we no more break page on
H1, H2, H3 in EPUBs.
- Added "Center headings" as we no more have them centered.
- Added "Pure black and white" which can make some documents
more readable.
Adds "Render mode" toggle with 4 modes, to enable some or all
of crengine's new enhanced block rendering features.
Use "legacy" rendering for previously opened books to not mess
with bookmarks, and "web" (all of the new features) for new books.
Also make available the added "HTML5" stylesheet to the Style menu.
- Popup footnotes: workaround strange behaviour of MuPDF
which is adding some unwanted margin above elements
with an "id=" attribute.
- In-page footnotes: also remove any left and right margin,
to keep footnotes aligned with the main text.
Also add 2 classnames (witnessed in quite a few recent
french books) to the list of classic classnames.
- Also bump crengine: CSS: fix parsing of multi classnames
and attributes selectors
Without having to resort to weird custom defaults.
* Split the current margins setting in three:
* Horizontal margins (because you generally want those two to be balanced).
* Top margin & Bottom margin (because you may want to tweak those separately to deal with quirky status bar/final line shenanigans).
* Also, add a "Reclaim bar height from bottom margin" toggle to the status bar menu, to optionally make sure the status bar won't eat into the bottom margin.
* Includes a free fix to diacritics popup refresh handling in the keyboard ;).
Extend the FR and ES keyboards from the EN one, and
just tweak what has to be changed.
This will allow them to stay in sync with the EN keyboard's
recent and futur developments of key popups.
Also make the FR keyboard a bit more AZERTY.
Eth (ð) is an important letter for people who like Old English (me), and for IPA.
Ď/ď is Czech/Slovak.
Đ/đ is sometimes an alternative rendering of ð, maybe because you could type it on a traditional typewriter. It's also Slavic and something Vietnamese.
Delta is an often-used Greek letter.
This internal ButtonProgressWidget widget was behaving
differently from all others (OptionTextItem, OptionIconItem
and ToggleSwitch) by duplicating some code from
ConfigDialog:onConfigChoose() instead of calling it directly.
While making it similar to others, I noticed that onConfigChoose()
did a full repaint, which was necessary for some settings to
be applied (ie: Contrast).
On CreDocument, this full repaint may cause some double drawing
on config changes (ie: Margins, drawing once after margin changes,
and then re-positionning to previous xpointer).
So, make the need for full repaint a condition on KoptOptions.
Adds a toggle switch in the Orientation bottom config menu to
allow showing 1 page or 2 pages when in landscape mode.
Previously, this was hardcoded to be in 2-pages modes only
in some circumstances (device resolution + user dpi).
* Enable HW dithering on supported devices (Clara HD, Forma; Oasis 2, PW4)
* FileManager and co. (where appropriate, i.e., when covers are shown)
* Book Status
* Reader, where appropriate:
* CRe: on pages whith image content (for over 7.5% of the screen area, should hopefully leave stuff like bullet points or small scene breaks alone).
* Other engines: on user-request (in the gear tab of the bottom menu), via the new "Dithering" knob (will only appear on supported devices).
* ScreenSaver
* ImageViewer
* Minimize repaints when flash_ui is enabled (by, almost everywhere, only repainting the flashing element, and not the toplevel window which hosts it).
(The first pass of this involved fixing a few Button instances whose show_parent was wrong, in particular, chevrons in the FM & TopMenu).
* Hunted down a few redundant repaints (unneeded setDirty("all") calls),
either by switching the widget to nil when only a refresh was needed, and not a repaint,
or by passing the appropritate widget to setDirty.
(Note to self: Enable *verbose* debugging to catch broken setDirty calls via its post guard).
There were also a few instances of 'em right behind a widget close.
* Don't repaint the underlying widget when initially showing TopMenu & ConfigDialog.
We unfortunately do need to do it when switching tabs, because of their variable heights.
* On Kobo, disabled the extra and completely useless full refresh before suspend/reboot/poweroff, as well as on resume. No more double refreshes!
* Fix another debug guard in Kobo sysfs_light
* Switch ImageWidget & ImageViewer mostly to "ui" updates, which will be better suited to image content pretty much everywhere, REAGL or not.
PS: (Almost 💯 commits! :D)
