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tmux
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Better text placeholder.

topcat001 2023-08-15 13:57:08 -07:00
parent 312d83252c
commit ad98233066
1 changed files with 35 additions and 2 deletions
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37
image.c
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@ -19,6 +19,7 @@
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include "tmux.h"
@ -50,6 +51,36 @@ image_free_all(struct screen *s)
return (redraw);
}
/* Create text placeholder for an image. */
static void
image_fallback(char **ret, u_int sx, u_int sy)
{
char *buf, *label;
u_int py, size, lsize;
/* Placeholder label. */
lsize = xasprintf(&label, "Sixel image (%ux%u)\n", sx, sy);
size = (sx + 2) * sy + 1;
if (lsize > size)
size = lsize;
/* Each placeholder line has \r\n at the end. */
*ret = buf = xmalloc(size);
for (py = 0; py < sy; py++) {
memset(buf, '+', sx);
buf += sx;
snprintf(buf, 3, "\r\n");
buf += 2;
}
/* Print the label.*/
if (size == lsize)
memcpy(*ret, label, lsize);
else
memcpy(*ret, label, lsize - 1);
free(label);
}
struct image*
image_store(struct screen *s, struct sixel_image *si)
{
@ -63,8 +94,7 @@ image_store(struct screen *s, struct sixel_image *si)
im->py = s->cy;
sixel_size_in_cells(si, &im->sx, &im->sy);
/* XXX Fallback mode: This can be abstracted further. */
xasprintf(&im->fallback, "Sixel image (%ux%u)\n", im->sx, im->sy);
image_fallback(&im->fallback, im->sx, im->sy);
TAILQ_INSERT_TAIL(&s->images, im, entry);
@ -135,6 +165,9 @@ image_scroll_up(struct screen *s, u_int lines)
im->py = 0;
sixel_size_in_cells(im->data, &im->sx, &im->sy);
free(im->fallback);
image_fallback(&im->fallback, im->sx, im->sy);
redraw = 1;
}
return (redraw);