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58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
#ifndef NVIM_GRID_H
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#define NVIM_GRID_H
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#include <stdbool.h>
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#include "nvim/ascii.h"
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#include "nvim/buffer_defs.h"
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#include "nvim/grid_defs.h"
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/// By default, all windows are drawn on a single rectangular grid, represented by
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/// this ScreenGrid instance. In multigrid mode each window will have its own
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/// grid, then this is only used for global screen elements that hasn't been
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/// externalized.
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///
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/// Note: before the screen is initialized and when out of memory these can be
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/// NULL.
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EXTERN ScreenGrid default_grid INIT(= SCREEN_GRID_INIT);
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#define DEFAULT_GRID_HANDLE 1 // handle for the default_grid
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EXTERN schar_T *linebuf_char INIT(= NULL);
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EXTERN sattr_T *linebuf_attr INIT(= NULL);
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// Low-level functions to manipulate individual character cells on the
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// screen grid.
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/// Put a ASCII character in a screen cell.
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static inline void schar_from_ascii(char_u *p, const char c)
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{
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p[0] = (char_u)c;
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p[1] = 0;
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}
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/// Put a unicode character in a screen cell.
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static inline int schar_from_char(char_u *p, int c)
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{
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int len = utf_char2bytes(c, (char *)p);
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p[len] = NUL;
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return len;
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}
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/// compare the contents of two screen cells.
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static inline int schar_cmp(char_u *sc1, char_u *sc2)
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{
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return strncmp((char *)sc1, (char *)sc2, sizeof(schar_T));
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}
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/// copy the contents of screen cell `sc2` into cell `sc1`
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static inline void schar_copy(char_u *sc1, char_u *sc2)
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{
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xstrlcpy((char *)sc1, (char *)sc2, sizeof(schar_T));
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}
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#ifdef INCLUDE_GENERATED_DECLARATIONS
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# include "grid.h.generated.h"
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#endif
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#endif // NVIM_GRID_H
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