man page work (#213)

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nick black 2019-12-28 20:57:10 -05:00
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3 changed files with 102 additions and 4 deletions

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@ -22,9 +22,9 @@ support file is provided, and can be accessed as `notcurses` (see cmake(1)).
`notcurses_init(3)` can then be used to initialize a notcurses instance for a
given `FILE*` (usually `stdout`), after calling `setlocale(3)` to prepare a
UTF-8 locale (see [Initialization][]).
UTF-8 locale (see [Construction][]).
### Initialization
### Construction
Before calling into notcurses—and usually as one of the first calls of the
program—be sure to call `setlocale` with an appropriate UTF-8 `LC_ALL`
@ -37,7 +37,28 @@ control of notcurses behavior, including signal handlers, alternative screens,
and overriding the TERM environment variable. A `terminfo` entry appropriate
for the actual terminal must be available.
### Shutdown
### Output
All output is performed on `struct ncplane*`s (see `notcurses_ncplane(3)`).
Following initialization, a single ncplane exists, the "standard plane" (see
`notcurses_stdplane(3)`. This plane cannot be destoyed nor manually resized,
and is always exactly as large as the screen. Further ncplanes can be created
with `notcurses_newplane(3)`. A total z-ordering always exists on the set of
ncplanes, and new ncplanes are placed at the top of the z-buffer. Information
on drawing to ncplanes is available at `notcurses_output(3)`.
Output is not visible until explicitly rendered via `notcurses_render(3)`.
### Input
notcurses supports input from keyboards (via `stdin`) and pointing devices (via
a broker such as GPM, X, or Wayland). Input is delivered as 32-bit Unicode
code points. Synthesized events such as mouse button presses and arrow keys
are mapped into Unicode's
(Supplementary Private Use Area-B)[https://unicode.org/charts/PDF/U100000.pdf].
Information on input is available at `notcurses_input(3)`.
### Destruction
Before exiting, `notcurses_stop(3)` should be called. In addition to freeing up
resources, this is necessary to restore the terminal to a state useful for the
@ -52,4 +73,6 @@ Nick Black <nickblack@linux.com>
## SEE ALSO
notcurses-demo(1), notcurses_init(3), notcurses_stop(3), ncurses(3NCURSES), terminfo(5)
notcurses-demo(1), notcurses_init(3), notcurses_input(3),
notcurses_newplane(3), notcurses_output(3), notcurses_render(3),
notcurses_stdplane(3), notcurses_stop(3), ncurses(3NCURSES), terminfo(5)

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@ -0,0 +1,39 @@
notcurses_ncplane(3) -- operations on notcurses planes
======================================================
## SYNOPSIS
`#include <notcurses.h>`
`int ncplane_resize(struct ncplane* n, int keepy, int keepx, int keepleny, int keeplenx, int yoff, int xoff, int ylen, int xlen);`
`int ncplane_move_yx(struct ncplane* n, int y, int x);`
`void ncplane_yx(const struct ncplane* n, int* restrict y, int* restrict x);`
`int ncplane_set_default(struct ncplane* ncp, const cell* c);`
`int ncplane_default(struct ncplane* ncp, cell* c);`
`int ncplane_destroy(struct ncplane* ncp);`
`int ncplane_move_top(struct ncplane* n);`
`int ncplane_move_bottom(struct ncplane* n);`
`int ncplane_move_above(struct ncplane* n, struct ncplane* above);`
`int ncplane_move_below(struct ncplane* n, struct ncplane* below);`
`struct ncplane* ncplane_below(struct ncplane* n);`
`int ncplane_at_cursor(struct ncplane* n, cell* c);`
`int ncplane_at_yx(struct ncplane* n, int y, int x, cell* c);`
`void* ncplane_set_userptr(struct ncplane* n, void* opaque);`
`void* ncplane_userptr(struct ncplane* n);`
`const void* ncplane_userptr_const(const struct ncplane* n);`
`void ncplane_dim_yx(const struct ncplane* n, int* restrict rows, int* restrict cols);`
`int ncplane_cursor_move_yx(struct ncplane* n, int y, int x);`
`void ncplane_cursor_yx(const struct ncplane* n, int* restrict y, int* restrict x);`
## DESCRIPTION
## RETURN VALUES
## AUTHORS
Nick Black <nickblack@linux.com>
## SEE ALSO
notcurses_newplane(3), notcurses_stdplane(3)

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@ -0,0 +1,36 @@
notcurses_stdplane(3) -- acquire the standard ncplane
=====================================================
## SYNOPSIS
`#include <notcurses.h>`
`struct ncplane*
notcurses_stdplane(struct notcurses* nc);`
`const struct ncplane*
notcurses_const_stdplane(const struct notcurses* nc);`
## DESCRIPTION
`notcurses_stdplane` returns a handle to the standard ncplane for the context
`nc. The standard plane always exists, and is always the same size as the
screen. It is an error to call `ncplane_destroy(3)`, `ncplane_resize(3)`, or
`ncplane_move(3)` on the standard plane, though it can be freely moved along
the z-axis.
A resize event does not invalidate this reference; it can be used until
`notcurses_stop(3)` is called on `nc`.
## RETURN VALUES
These functions cannot fail when provided a valid `struct notcurses*`. They
will always return a valid pointer to the standard plane.
## AUTHORS
Nick Black <nickblack@linux.com>
## SEE ALSO
notcurses_ncplane(3), notcurses_stop(3)