Introduce limited plane rotation capability. We currently support clockwise and counterclockwise rotation of planes. Square and rectangular geometries are both supported, but there must be an even number of columns. The atomic unit of rotation is a 2x1 "square" (this assumes .5 cell aspect ratio). We can only rotate those glyphs which have rotated equivalents, and not even all of those. We currently handle only:
* null glyph
* space
* upper half block
* lower half block
* full block
I've added unit tests as well. This functionality is used by our Tetris example in the book
ncplane_mouseevent_p() is retired--it was poorly named, and
ncplane_translate_abs() does what it does, plus more, plus
more generally (it works on any y, x, not necessarily an
ncinput). update c++ wrappers #394.
When the selector body was being sized by the header
or footer (as opposed to option+desc length), our scroll
arrows are misplaced. They now land properly. Mouse
clicks are properly placed now, and screenshots have been
updated in the guide.
Gradients can't use palette-indexed color, so don't allow it
in either the foreground or background of any channels. All
channels must have the same alpha setting, which will be matched
in the gradient. #389
Accept -J as a parameter requiring an option to notcurses-demo(1).
Update the man page and usage message to reflect this. Open the
specified file for binary writing with truncation at option parsing
time; fail out if we can't open it. At the end of the demo, write
the results out as JSON, using full precision for all values #387.
