This adds a button to the Tap Plus menu, that allows
extracting metadata and cover images for books in
current directory. Info about the process and questions are
initially shown and asked, and the process can be aborted at
any moment.
For devices with natural light (KA1, H2O2), add new button 'Configure'
at the bottom which will open the naturallightwidget, which will be
placed at the top. The frontlightwidget will be moved to the bottom,
and both have permanent focus. This way, you can change the parameters
and immediately test them by changing the frontlight level and
warmth. On the KA1, both widgets will easily fit, but on smaller
devices it may be that they overlap.
Since the frontlightwidget will keep focus, we disable the 'Configure'
button when the naturallightwidget opens. We also remove its 'Close'
button and disable 'onTapCloseFL', so that the frontlightwidget cannot
be closed while the naturallightwidget is displayed.
This widget is used to configure the natural light on KA1/H2O2. It
allows the user to set the gain/offset values for white/red/green, as
well as the exponent used in the formula.
Numbers can be changed via screen keyboard or through the plus/minus
buttons next to the numbers (holding the buttons will in/decrase with
smaller steps). Changes are applied immediately, but will only be set
permanently if 'OK' is pressed. If 'Cancel' is pressed, the new values
are discarded and the old ones restored. Also, pressing 'OK' will save
these values in the koreader settings file (there's no support for
changing these values in Nickel, so there's nothing to sync to its
config file). The 'Restore Default' button will install the original
defaults that were derived from Nickel's behavior.
This widget is meant to be called from the frontlight widget and is
placed at the top, so that the frontlight widget can still be used to
test the current values (see next commit).
For warmth and/or brightness = 0, we need to make sure that the
red/green/white LEDs are actually turned off, regardless of the values
for gain/offset.
bump crengine:
Allow for quicker loading when interested in metadata only.
Allow for more than 65535 different attribute values.
Increase gamma values range.
Fix crash on following empty links
Fix page-mode rendering of tables with tall rows
Crash with fatal error when max nodes limit reached
Fix cppcheck warnings
Some Hold and move (hold on title and move away from it) would not work.
Pan (=swipe with hold at end) while selecting text would move the
window (it now does nothing: proper text selection still needs Hold
on word at start).
Also increase hold duration from 2s to 3s (for switching lookup
between dict/wikipedia) to be consistent with the 3s duration in
readerhighlight.
Some big chunks that compressed well, could, when uncompressed,
not fit in some buffer. This would cause invalidation of the full
cache, and provoke a full reload and re-rendering.
Remove the subprocess management functions from xutil.lua, as they were
moved into base/ffi/util.lua, and use them from there.
Also use the cre_storage_size_factor setting when processing credocuments,
to avoid CRE WARNING while indexing too.
Fix dealing with MuPDF document opening failures (previously, these
were not noticed and indexing was retried each time).
Bump crengine for cache re-use fix and warnings when
cache sizes reached.
Allow for increasing some crengine cache sizes with a new
setting: "cre_storage_size_factor" = 1.5 (or 2, or 4...)
Holding on a word for more than 3s should bring the highlight menu.
It crashed on readerpaging documents because self.hold_pos is no more
a Geom object with them.
Also inverted selected_word/selected_text logic, as with PDF, selected_word
stays set when selected_text is available.
If the device supports natural light (currently only KA1), extend the
frontlight widget to also allow for changing the 'warmth' value. We
more or less duplicate the widget for 'brightness', with the exception
that we drop the 'toggle' button, which does not make much sense for
the frontlight's warmth. Also, we add captions 'Brightness' and
'Warmth' for clarity.
