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Allow rewrap_inner to track multiple positions

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Kovid Goyal
2021-06-03 12:29:27 +05:30
parent e2197c586b
commit c60a941d1b
3 changed files with 23 additions and 11 deletions
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24
kitty/rewrap.h
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@@ -48,31 +48,41 @@ copy_range(Line *src, index_type src_at, Line* dest, index_type dest_at, index_t
memcpy(dest->gpu_cells + dest_at, src->gpu_cells + src_at, num * sizeof(GPUCell));
}
typedef struct TrackCursor {
index_type x, y;
bool is_tracked_line, is_sentinel;
} TrackCursor;
static void
rewrap_inner(BufType *src, BufType *dest, const index_type src_limit, HistoryBuf UNUSED *historybuf, index_type *track_x, index_type *track_y, ANSIBuf *as_ansi_buf) {
rewrap_inner(BufType *src, BufType *dest, const index_type src_limit, HistoryBuf UNUSED *historybuf, TrackCursor *track, ANSIBuf *as_ansi_buf) {
bool src_line_is_continued = false;
index_type src_y = 0, src_x = 0, dest_x = 0, dest_y = 0, num = 0, src_x_limit = 0;
TrackCursor tc_end = {.is_sentinel = true };
if (!track) track = &tc_end;
first_dest_line;
do {
bool is_tracked_line = src_y == *track_y;
for (TrackCursor *t = track; !t->is_sentinel; t++) t->is_tracked_line = src_y == t->y;
init_src_line(src_y);
src_line_is_continued = is_src_line_continued(src_y);
src_x_limit = src->xnum;
if (!src_line_is_continued) {
// Trim trailing blanks since there is a hard line break at the end of this line
while(src_x_limit && (src->line->cpu_cells[src_x_limit - 1].ch) == BLANK_CHAR) src_x_limit--;
}
if (is_tracked_line && *track_x >= src_x_limit) *track_x = MAX(1u, src_x_limit) - 1;
for (TrackCursor *t = track; !t->is_sentinel; t++) {
if (t->is_tracked_line && t->x >= src_x_limit) t->x = MAX(1u, src_x_limit) - 1;
}
while (src_x < src_x_limit) {
if (dest_x >= dest->xnum) { next_dest_line(true); dest_x = 0; }
num = MIN(src->line->xnum - src_x, dest->xnum - dest_x);
copy_range(src->line, src_x, dest->line, dest_x, num);
if (is_tracked_line && src_x <= *track_x && *track_x < src_x + num) {
*track_y = dest_y;
*track_x = dest_x + (*track_x - src_x + 1);
for (TrackCursor *t = track; !t->is_sentinel; t++) {
if (t->is_tracked_line && src_x <= t->x && t->x < src_x + num) {
t->y = dest_y;
t->x = dest_x + (t->x - src_x + 1);
}
}
src_x += num; dest_x += num;
}