Partially reverts: c5c9432ac0
Context: https://github.com/dankamongmen/notcurses/pull/1146
The above commit implemented the much more convenient way of finding and
using a package from CMake, however it broke compatibility with the way
id had been before, which defined various `Notcurses_*` variables.
Revert the `Notcurses` component to the old way and add support for
`Notcurses++` in the same fashion.
Perhaps one day we should think of implementing `find_package` support
by way of a module, which should make it possible to have the cake and
eat the cake. One day.
CMake:
Simplify cmake target+version config generation and make it actually
work. With the changes it is now possible to detect and use
`Notcurses` in the following way:
find_package(Notcurses REQUIRED)
...
target_link_libraries(myapp PRIVATE notcurses::notcurses)
Also, added the same CMake configuration for `Notcurses++`, to be used
in the following way:
find_package(Notcurses REQUIRED
find_package(Notcurses++ REQUIRED)
...
target_link_libraries(myapp PRIVATE notcurses++::notcurses++)
Docs:
`notcurses_cell(3)`: `cell_styles_{on,off} -> cell_{on,off}_styles`
and `cell_load_simple` -> `cell_load_char`
C++ API:
* Plane: added constructors taking `ncplane_options const&` instead of
the multitude of individual parameters
* Plane: drop `struct` when `ncplane_options` is used.
* Plane: added `strdup` (`cell_strdup`)
* Plane: added `extract` (`cell_extract`)
- add functions ncpile_create, ncpile_render, ncpile_rasterize
- add new script tools/blame-nick.sh
- upd script tools/function-summary.sh and the generated data
- upd bindgen version
Add NOTCURSES_VERNUM_* as integer preprocessor definitions of
the four version components. Add NOTCURSES_VERNUM_ORDERED as
a 32-bit totally comparable integer. Preserve the definitions
of NOTCURSES_VERSION_*, defining them in terms of VERNUMs.
Don't use TWEAK in version, since it usually isn't defined.
* Reimplement the widget zoo demo. The previous PoC
was a multithreaded monster with behavior dependent
on screen geometry. Replace it with a single thread state
machine. Closes#936.
* Support titles for ncplot. Adds title to the ncplot_options
struct, which may be NULL. Closes#941 .
* Properly color ncplot according to maxchannels and
minchannels. Closes#940
* Add tools/function-table.sh script for generating public API list.
When we don't have a pidfd available on which to poll(2) (this
is true of Linux pre-5.3, and FreeBSD), we can't rely on a
child death breaking our poll loop. Instead, in this case launch
a second thread, which just sits on a blocking waitpid(2). If
it gets an exit, it calls the completion callback, triggering
the teardown. Closes#728, and ought lets us run the test suite
on FreeBSD.
