* refactor: make torrents' mime icons lazy-loaded.
Another "small wins" patch, this time on CPU: icon loading is expensive,
so calculating them for every torrent all at once on startup isn't the
smartest way to do it.
* refactor: keep torrent hash in std::array<char,20>
This replaces the hashString QString allocation with a compile-time
array that's included in sizeof the Torrent struct that owns it.
* refactor: make variant_headers reusable to qt app.
Torrent.cc's `change()` template methods are generically useful to deal
with tr_variant wrangling, but previously were only used in Torrent.cc.
This PR moves them into a new API `VariantHelpers.h` for use by Prefs,
Session, TorrentModel, etc.
* refactor: Torrent::update() returns a delta bitset
Setting up for followup PRs where, instead of doing expensive work every
time there is a change, we can be more fine-grained and do the work only
if the relevant Torrent properties changed.
* chore: make uncrustify happy
* chore: fix #includes
edit-date got added to the backend in 3.00, but I never finished adding
it properly to the Qt client. This PR rectifies that. When a torrent is
edited, the Application and DetailsDialogs will re-query the backend to
update the torrent properties that are needed.
* refactor: use snake_case field naming in qt client
* fix: some missed symbols
* chore: make uncrustify happy
* fixup! refactor: use snake_case field naming in qt client
* faster updating of trackers combobox.
* generate trackerDisplayNames just once per torrent
* refactor: cache torrent delegate's warning emblem
* refactor: change mainwin refresh debounce to 200ms
* refactor: do not store trackers, hosts in QVariant
* refactor: don't use `virtual` when it's not needed
* refactor: faster counting torrents-matching-filter
* refactor: faster tracker handling in filterbar
* refactor: improve json parser's prealloc heuristic
* refactor: make Torrent::hasError() faster
* refactor: remove redundant speed stats collection
* refactor: remove unnecessary tor->isQueued() calls
* refactor: use unordered containers where possible
* scale favicons only once, when adding to the cache
* feat: add optional "format" arg to torrent-get RPC
If the "format" request was "objects" (default), "torrents" will be an
array of objects, each of which contains the key/value pairs matching
the request's "fields" arg. This is unchanged from previous versions.
If the format was "table", then "torrents" will be an array of arrays.
The first row holds the keys and each remaining row holds a torrent's
values for those keys. This format is more efficient in terms of JSON
generation and JSON parsing.
refractor: simplify torrent model signal emissions
The Torrent->Application signal connections make up for about 5% of the
app's memory use. Move this to the TorrentModel so that there are only a
handful of signal connections.
Moving signals to TorrentModel means batch change signals can be emitted
instead of per-change-per-torrent emissions and can be handled that way.
This way all the qualifiers (`const`, `volatile`, `mutable`) are grouped
together, e.g. `T const* const x` vs. `const T* const x`. Also helps reading
types right-to-left, e.g. "constant pointer to constant T" vs. "constant
pointer to T which is constant".
There're places where manual intervention is still required as uncrustify
is not ideal (unfortunately), but at least one may rely on it to do the
right thing most of the time (e.g. when sending in a patch).
The style itself is quite different from what we had before but making it
uniform across all the codebase is the key. I also hope that it'll make the
code more readable (YMMV) and less sensitive to further changes.
Split FileTree.{h,cc} and FilterBar.{h,cc} files so that each class
is in its own file.
This breaks translations (some classes got renamed => context changed),
to be fixed by next commit (along with Tx sync).
