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add ncplane_resizecb() #1124

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nick black 2020-11-18 08:00:02 -05:00
parent 6084105c68
commit c0cb5c7ff9
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5 changed files with 13 additions and 1 deletions
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2
NEWS.md
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@ -10,7 +10,7 @@ rearrangements of Notcurses.
self-documenting `struct ncplane_options` argument. So long as the
arguments to `ncplane_new()` do not have side-effects, calls can be
mechanically translated to their `ncplane_create()` equivalents.
* Added `nplane_set_resize()`.
* Added `ncplane_set_resizecb()` and `ncplane_resizecb()`.
* 2.0.4 (2020-11-10)
* Fixed unit tests for non UTF-8 case, brown bagger, alas.

3
USAGE.md
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@ -673,6 +673,9 @@ struct ncplane* ncplane_reparent(struct ncplane* n, struct ncplane* newparent);
// Replace the ncplane's existing resizecb with 'resizecb' (which may be NULL).
void ncplane_set_resizecb(struct ncplane* n, int(*resizecb)(struct ncplane*));
// Returns the ncplane's current resize callback.
int (*ncplane_resizecb(const struct ncplane* n))(struct ncplane*);
// Suitable for use as a 'resizecb'. This will realign the plane 'n' against its
// parent, using the alignment specified at ncplane_create()-time.
int ncplane_resize_realign(struct ncplane* n);

2
doc/man/man3/notcurses_plane.3.md
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@ -37,6 +37,8 @@ typedef struct ncplane_options {
**void ncplane_set_resizecb(struct ncplane* ***n***, int(*resizecb)(struct ncplane*));**
**int (*ncplane_resizecb(const struct ncplane* ***n***))(struct ncplane*);**
**struct ncplane* ncplane_dup(struct ncplane* ***n***, void* ***opaque***);**
**int ncplane_resize(struct ncplane* ***n***, int ***keepy***, int ***keepx***, int ***keepleny***, int ***keeplenx***, int ***yoff***, int ***xoff***, int ***ylen***, int ***xlen***);**

3
include/notcurses/notcurses.h
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@ -1056,6 +1056,9 @@ API int ncplane_resize_realign(struct ncplane* n);
// Replace the ncplane's existing resizecb with 'resizecb' (which may be NULL).
API void ncplane_set_resizecb(struct ncplane* n, int(*resizecb)(struct ncplane*));
// Returns the ncplane's current resize callback.
API int (*ncplane_resizecb(const struct ncplane* n))(struct ncplane*);
// Plane 'n' will be unbound from its parent plane, if it is currently bound,
// and will be made a bound child of 'newparent', if 'newparent' is not NULL.
API struct ncplane* ncplane_reparent(struct ncplane* n, struct ncplane* newparent);

4
src/lib/notcurses.c
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@ -2040,6 +2040,10 @@ void ncplane_set_resizecb(ncplane* n, int(*resizecb)(ncplane*)){
n->resizecb = resizecb;
}
int (*ncplane_resizecb(const ncplane* n))(ncplane*){
return n->resizecb;
}
int ncplane_resize_realign(ncplane* n){
const ncplane* parent = ncplane_parent_const(n);
if(parent == n){ // somehow got stdplane, should never get here