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# CHANGES - Common Print Dialog Backends - CUPS Backend - v2.0b5 - 2023-08-02
## CHANGES IN V2.0b5 (2nd August 2023)
- Remove CPDB backend info file
The frontend libraries now use only the D-Bus to find available
backends. This makes sure that everything works also if the frontend
and/or any of the backends are installed via sanboxed packaging
(like Snap for example) where the components cannot read each
other's file systems (PR #26).
- `get_all_media()`: Do not crash on custom page size range entries
The media-col-database IPP attribute contains one entry for each
valid combination of page size dimensions, margins, and in some
cases also media source and media type. Entries for custom page
sizes contain ranges instead of single values. `get_all_media()`
crashed on these. Now we let the function simply skip them.
- Build system: Removed unnecessary lines in `tools/Makefile.am`
Removed the `TESTdir` and `TEST_SCRIPTS` entries in
`tools/Makefile.am`. They are not needed and let `make install` try
to install `run-tests.sh` in the source directory, where it already
is, causing an error.
## CHANGES IN V2.0b4 (21th March 2023)
- Added test script for `make test`/`make check`
The script `src/run-tests.sh` starts a private session D-Bus via
`dbus-run-session` and therein an own copy of CUPS. It uses the CPDB
CUPS backend with this CUPS and tests it using the
`cpdb-text-frontend` of cpdb-libs, performing several test tasks on
the backend.
## CHANGES IN V2.0b3 (20th February 2023)
- Add handler for `GetAllTranslations` method and Bug fixes (PR #22)
* Fixed bug when backend finds zero printers
* Add handler for `GetAllTranslations` method
* `get_printer_translations()` fetches translations for all printer
strings.
* Removed `get_human_readable_option_name()` and
`get_human_readable_choice_name()` functions.
## CHANGES IN V2.0b2 (13th February 2023)
- Return printer list upon activation and subscribe to cups for
updates (PR #20)
* Return printer list synchronously upon activation
* Subscribe to CUPS notifications for printer updates
* Automatically update frontends about new printers found, old
printers lost, or printer state changed
- Added the support of cpdb-libs for translations
* Using general message string catalogs from CUPS and also message
string catalogs from individual print queues/IPP printers.
* Message catalog management done by libcupsfilters 2.x, via the
`cfCatalog...()` API functions (`catalog.h`).
- Option group support
- Added `billing-info` option (PR #19)
- Log messages handled by frontend
- Use pkg-config variables instead of hardcoded paths (PR #17)
- Build system: Let "make dist" also create .tar.bz2 and .tar.xz
## CHANGES IN V2.0b1 (12th December 2022)
- Added function to query for human readable names of options/choices
With the added functionality of cpdb-libs to poll human-readable
names for options/attributes and their choices this commit adds a
simple function to provide human-readable strings for the
user-settable printer IPP attributes of CUPS queues.
- Added support for common CUPS/cups-filters options
Options like number-up, page-set, output-order, ... Available for
all CUPS queues, not specific to particular printer.
- Added get_media_size() function
- Support for media sizes to have multiple margin variants (like
standard and borderless)
- Do not send media-col attribute to frontend as user-settable option
- Adapted to renamed API functions and data types of cpdb-libs 2.x
- Updated signal names to match those emitted from CPDB frontend
- Made "make dist" generate a complete source tarball
- Fixed some potential crasher bugs following warnings about
incompatible pointer types.
- Updated README.md
+ On update the old version of the backend needs to get killed
+ Common Print Dialog -> Common Print Dialog Backends
+ Requires cpdb-libs 2.0.0 or newer
+ Updated instructions for running the backend.
+ Added link to Gaurav Guleria's GSoC work, minor fixes
+ Use third person.
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