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Add a function to draw a simple menu onto a screen.

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This commit is contained in:
nicm 2019-05-10 14:12:47 +00:00
parent cb10bfb8ef
commit 004a9b52f0
2 changed files with 55 additions and 1 deletions
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38
screen-write.c
View File

@ -403,6 +403,44 @@ screen_write_vline(struct screen_write_ctx *ctx, u_int ny, int top, int bottom)
screen_write_set_cursor(ctx, cx, cy);
}
/* Draw a menu on screen. */
void
screen_write_menu(struct screen_write_ctx *ctx, struct menu *menu, int choice)
{
struct screen *s = ctx->s;
struct grid_cell gc;
u_int cx, cy, i, j;
cx = s->cx;
cy = s->cy;
memcpy(&gc, &grid_default_cell, sizeof gc);
screen_write_box(ctx, menu->width + 4, menu->count + 2);
screen_write_cursormove(ctx, cx + 2, cy, 0);
format_draw(ctx, &gc, menu->width, menu->title, NULL);
for (i = 0; i < menu->count; i++) {
if (menu->items[i].name == NULL) {
screen_write_cursormove(ctx, cx, cy + 1 + i, 0);
screen_write_hline(ctx, menu->width + 4, 1, 1);
} else {
if (choice >= 0 && i == (u_int)choice)
gc.attr |= GRID_ATTR_REVERSE;
screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
for (j = 0; j < menu->width; j++)
screen_write_putc(ctx, &gc, ' ');
screen_write_cursormove(ctx, cx + 2, cy + 1 + i, 0);
format_draw(ctx, &gc, menu->width, menu->items[i].name,
NULL);
if (choice >= 0 && i == (u_int)choice)
gc.attr &= ~GRID_ATTR_REVERSE;
}
}
screen_write_set_cursor(ctx, cx, cy);
}
/* Draw a box on screen. */
void
screen_write_box(struct screen_write_ctx *ctx, u_int nx, u_int ny)

18
tmux.h
View File

@ -748,6 +748,21 @@ struct screen_redraw_ctx {
#define screen_hsize(s) ((s)->grid->hsize)
#define screen_hlimit(s) ((s)->grid->hlimit)
/* Menu item. */
struct menu_item {
char *name;
char *command;
key_code key;
};
/* Menu. */
struct menu {
char *title;
struct menu_item *items;
u_int count;
u_int width;
};
/*
* Window mode. Windows can be in several modes and this is used to call the
* right function to handle input and output.
@ -1687,7 +1702,7 @@ char *paste_make_sample(struct paste_buffer *);
#define FORMAT_PANE 0x80000000U
#define FORMAT_WINDOW 0x40000000U
struct format_tree;
const char *format_skip(const char *s, const char *end);
const char *format_skip(const char *, const char *);
int format_true(const char *);
struct format_tree *format_create(struct client *, struct cmdq_item *, int,
int);
@ -2200,6 +2215,7 @@ void screen_write_fast_copy(struct screen_write_ctx *, struct screen *,
u_int, u_int, u_int, u_int);
void screen_write_hline(struct screen_write_ctx *, u_int, int, int);
void screen_write_vline(struct screen_write_ctx *, u_int, int, int);
void screen_write_menu(struct screen_write_ctx *, struct menu *, int);
void screen_write_box(struct screen_write_ctx *, u_int, u_int);
void screen_write_preview(struct screen_write_ctx *, struct screen *, u_int,
u_int);