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multistack comments #1078

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nick black 2020-11-07 04:50:29 -05:00 committed by Nick Black
parent c713c4c9ec
commit 181afbdeea
1 changed files with 7 additions and 2 deletions
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src/lib/internal.h
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@ -70,15 +70,20 @@ typedef struct ncplane {
int x, y; // current cursor location within this plane int x, y; // current cursor location within this plane
// ncplane_yx() etc. use coordinates relative to the plane to which this // ncplane_yx() etc. use coordinates relative to the plane to which this
// plane is bound, but absx/absy are always relative to the terminal origin. // plane is bound, but absx/absy are always relative to the terminal origin.
// they must thus be translated by any such function. // they must thus be translated by any function which moves a parent plane.
int absx, absy; // origin of the plane relative to the screen int absx, absy; // origin of the plane relative to the screen
int lenx, leny; // size of the plane, [0..len{x,y}) is addressable int lenx, leny; // size of the plane, [0..len{x,y}) is addressable
// a notcurses context is made up of stacks, each rooted by a plane which is
// bound to no other plane. the main stack is rooted by the standard plane,
// and is the only stack which is rendered. each stack has its own z-axis.
struct ncplane* above; // plane above us, NULL if we're on top struct ncplane* above; // plane above us, NULL if we're on top
struct ncplane* below; // plane below us, NULL if we're on bottom struct ncplane* below; // plane below us, NULL if we're on bottom
struct ncplane* bnext; // next in the bound list of plane to which we are bound struct ncplane* bnext; // next in the bound list of plane to which we are bound
struct ncplane** bprev;// link to us iff we're bound, NULL otherwise struct ncplane** bprev;// link to us iff we're bound, NULL otherwise
struct ncplane* blist; // head of list of bound planes struct ncplane* blist; // head of list of bound planes
struct ncplane* boundto; // plane to which we are bound, if any // a root plane is bound to itself. every other plane has a path to its
// stack's root via boundto. the standard plane is always bound to itself.
struct ncplane* boundto;
egcpool pool; // attached storage pool for UTF-8 EGCs egcpool pool; // attached storage pool for UTF-8 EGCs
uint64_t channels; // works the same way as cells uint64_t channels; // works the same way as cells
void* userptr; // slot for the user to stick some opaque pointer void* userptr; // slot for the user to stick some opaque pointer