mirror of
https://github.com/dankamongmen/notcurses.git
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91 lines
2.7 KiB
Markdown
91 lines
2.7 KiB
Markdown
% notcurses_selector(3)
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% nick black <nickblack@linux.com>
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% v1.6.19
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# NAME
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notcurses_selector - high level widget for selecting from a set
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# SYNOPSIS
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**#include <notcurses/notcurses.h>**
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```c
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struct ncinput;
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struct ncplane;
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struct notcurses;
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struct ncselector;
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struct ncselector_item {
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char* option;
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char* desc;
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};
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typedef struct ncselector_options {
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char* title; // title may be NULL, inhibiting riser
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char* secondary; // secondary may be NULL
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char* footer; // footer may be NULL
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struct ncselector_item* items; // initial items and descriptions
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// default item (selected at start)
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unsigned defidx;
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// maximum number of options to display at once
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unsigned maxdisplay;
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// exhaustive styling options
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uint64_t opchannels; // option channels
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uint64_t descchannels; // description channels
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uint64_t titlechannels;// title channels
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uint64_t footchannels; // secondary and footer channels
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uint64_t boxchannels; // border channels
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uint64_t bgchannels; // background channels for body
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unsigned flags; // bitfield over NCSELECTOR_OPTION_*
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} ncselector_options;
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```
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**struct ncselector* ncselector_create(struct ncplane* n, int y, int x, const ncselector_options* opts);**
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**int ncselector_additem(struct ncselector* n, const struct ncselector_item* item);**
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**int ncselector_delitem(struct ncselector* n, const char* item);**
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**const char* ncselector_selected(const struct ncselector* n);**
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**struct ncplane* ncselector_plane(struct ncselector* n);**
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**const char* ncselector_previtem(struct ncselector* n);**
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**const char* ncselector_nextitem(struct ncselector* n);**
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**bool ncselector_offer_input(struct ncselector* n, const struct ncinput* nc);**
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**void ncselector_destroy(struct ncselector* n, char\*\* item);**
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# DESCRIPTION
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# NOTES
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Currently, the **ncplane** **n** provided to **ncselector_create** must not be
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**NULL**, though the **ncselector** will always get its own plane, and this
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plane will not (currently) be bound to **n**. **ncselector_selected**
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returns the currently-selected option. **ncselector_additem** and
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**ncselector_delitem** allow items to be added and deleted on the fly
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(a static set of items can all be provided in the **ncselector_create**
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call).
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**ncselector_plane** will return the **ncplane** on which the widget is
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drawn.
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While the **ncselector** can be driven entirely by client code, input can
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be run through **ncselector_offer_input** to take advantage of common
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controls. It will handle the up and down arrows, along with PageUp and
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PageDown. If the mouse is enabled, the mouse scrollwheel and mouse clicks
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on the scroll arrows will be handled.
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# RETURN VALUES
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# SEE ALSO
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**notcurses(3)**,
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**notcurses_input(3)**,
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**notcurses_multiselector(3)**
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**notcurses_plane(3)**
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