Commit graph

113 commits

Author SHA1 Message Date
Dirk Hohndel
f3d87a2b16 Fix stupid off by one error in Uemis downloader
We are accessing offset 24 in an array of length 24. To make things easier
for the base64 conversion we just treat this as an off by three error and
instead create an array large enough for 27 elements and convert a
sufficient number of base64 chars to initialize all of them.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-19 20:05:04 -08:00
Dirk Hohndel
4e02f5f3a3 Correctly reset the ANS file number when restarting Uemis download
If we ran out of space on the Uemis SDA during download and the user
unmounted, unplugged and replugged the SDA, we need to take care to
correctly reset the file number we use for finding the correct ANS file.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-19 15:09:50 -08:00
Dirk Hohndel
ddebdc0982 Improve Uemis timeout handling
Start every step with much longer timeouts (until we get the first
response back), but then use shorter timeouts once we have started
receiving data.

This uses up fewer of the ANS files and allows us to get more dives
downloaded before the SDA has to be unplugged to reset communications,
yet at the same time it still improves the overall download time.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-19 15:05:12 -08:00
Dirk Hohndel
a32f3857cb Tweaks to the Uemis debugging code
Make it less verbose to make it easier to follow the progress along.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-19 15:04:59 -08:00
Dirk Hohndel
fe4f13f184 Add special download modes to force updates from the divecomputer
This will hopefully not be something we need often, but if we improve
support for a divecomputer (either in libdivecomputer or in our native
Uemis code or even in the way we handle (and potentially discard) events),
then it is extremely useful to be able to say "re-download things
from the divecomputer and for things that were not edited in Subsurface,
don't try to merge the data (which gives BAD results if for example you
fixed a bug in the depth calculation in libdivecomputer) but instead
simply take the samples, the events and some of the other unedited data
straight from the download".

This commit implements just that - a "force download" checkbox in the
download dialog that makes us reimport all dives from the dive computer,
even the ones we already have, and an "always prefer downloaded dive"
checkbox that then tells Subsurface not to merge but simply to take the
data from the downloaded dive - without overwriting the things we have
already edited in Subsurface (like location, buddy, equipment, etc).

This, as a precaution, refuses to merge dives that don't have identical
start times. So if you have edited the date / time of a dive or if you
have previously merged your dive with a different dive computer (and
therefore modified samples and events) you are out of luck.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-11 14:29:26 +01:00
Dirk Hohndel
097702a392 Ignore last dive read from Uemis when starting with empty divelist
When the user closes the divelist and starts with an empty file it makes
no sense to assume that she only wants to download new dives since the
last time dives have been downloaded. So if the current divelist is empty
we ignore that information and start from the beginning again.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-11-10 11:54:14 +01:00
Dirk Hohndel
b8a4730661 Expand Uemis Zurich download support
With this commit we not only use the getDivelogs command but also the
getDive command for each of the dives that was downloaded. Oddly, that
makes quite a bit of redundant (and at times slightly contradictory) data
available, but also many new things.

We now get weight, suit and notes that were stored with a dive in the
logbook on the divecomputer. There are a ton more data available that we
don't use, yet. For example information about altitude, a decoindex, dive
type and dive activity, other equipment information, etc.

I still need to decide how much of this I want to make available in
Subsurface (and how I want to present this - after all most of this is not
available from other dive computers).

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-10-25 20:15:39 -07:00
Dirk Hohndel
99846da77f Conversion to gettext to allow localization
This is just the first step - convert the string literals, try to catch
all the places where this isn't possible and the program needs to convert
string constants at runtime (those are the N_ macros).

Add a very rough first German localization so I can at least test what I
have done. Seriously, I have never used a localized OS, so I am certain
that I have many of the 'standard' translations wrong. Someone please take
over :-)

Major issues with this:

- right now it hardcodes the search path for the message catalog to be
  ./locale - that's of course bogus, but it works well while doing initial
  testing. Once the tooling support is there we just should use the OS
  default.

- even though de_DE defaults to ISO-8859-15 (or ISO-8859-1 - the internets
  can't seem to agree) I went with UTF-8 as that is what Gtk appears to
  want to use internally. ISO-8859-15 encoded .mo files create funny
  looking artefacts instead of Umlaute.

- no support at all in the Makefile - I was hoping someone with more
  experience in how to best set this up would contribute a good set of
  Makefile rules - likely this will help fix the first issue in that it
  will also install the .mo file(s) in the correct place(s)

  For now simply run

  msgfmt -c -o subsurface.mo deutsch.po

  to create the subsurface.mo file and then move it to
  ./locale/de_DE.UTF-8/LC_MESSAGES/subsurface.mo

  If you make changes to the sources and need to add new strings to be
  translated, this is what seems to work (again, should be tooled through
  the Makefile):

  xgettext -o subsurface-new.pot -s -k_ -kN_ --add-comments="++GETTEXT" *.c
  msgmerge -s -U po/deutsch.po subsurface-new.pot

  If you do this PLEASE do one commit that just has the new msgid as
  changes in line numbers create a TON of diff-noise. Do changes to
  translations in a SEPARATE commit.

- no testing at all on Windows or Mac
  It builds on Windows :-)

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-10-11 10:03:03 +09:00
Dirk Hohndel
24c6197c10 Fix a number of obvious memory leaks
Just the result of cppcheck and valgrind...

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-09-29 20:58:26 -07:00
Martin Gysel
69aec317f0 close directory after reading entries
otherwise the filedescriptor keeps open which prevents a
smooth unmounting as long as subsurface is open

Signed-off-by: Martin Gysel <me@bearsh.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-09-29 08:19:27 -07:00
Dirk Hohndel
bd3df859bc Restructure the Uemis native download buffer code
Running under Valgrind showed a couple of silly bugs.

Worse, intentionally running into various error scenarios showed that we
could get the buffer handling in the raw parsing code to break down - we
would fail to process the correctly downloaded files.

To make it easier to get this right I restructured the code to collect the
XML buffer in a different way - this works much better and has stood up
well under testing so far.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-09-27 00:29:31 -07:00
Dirk Hohndel
49fbccd61a Much improved handling of out of memory errors in the Uemis downloader
Instead of trying to figure out in the GUI code whether to call the
downloader again, the logic was moved into the downloader itself. It now
attempts to deal cleverly with running out of space on the dive computer
filesystem - and in return is able to process the maximum number of dives
(instead of just ten or so at a time).

Even on partial reads before a failure we are able to collect the data
that was completely transferred and report those dives.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-09-26 20:39:51 -07:00
Dirk Hohndel
43f122f9ff First implementation of native Uemis downloader
This includes one major hack that uses a private data structure from
libdivecomputer to allow us to show the Uemis Zurich as one computer the
user can import from.

Once the user has chosen the Uemis we don't use libdivecomputer but our
own downloader. Just like in the libdicecomputer case this runs in its own
thread and updates the import dialog with progress information.

The code also keeps track of the last dive that has been downloaded from a
Uemis computer so we only import new dives on subsequent downloads. And
since the Uemis Zurich gives us its device id, we make this a "per
divecomputer" property for people who dive with multiple Uemis Zurich
computers.

This uses the debugfile infrastructure to allow easily collecting
debugging output - especially on Windows where by default console output
is lost.

Known limitations: when the Uemis runs out of space (it uses its
filesystem for communication with the host computer) we have no graceful
way to reset things. This is why the code doesn't try to download ALL
dives on the computer but instead download them in increments of ten
dives. This clearly needs to be addressed once I understand how to reset
the device.

The Cancel button of the import dialog isn't correctly hooked up, yet.
I still need to figure out how to gracefully shut down a download without
potentially hanging the device.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-09-26 10:58:15 -07:00