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vim-patch:9.1.1306: completion menu rendering can be improved

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Problem:  Parts of the popup menu were rendered twice when the popup was
          at maximum width because the truncation flag was being set too
          liberally.
Solution: Make the truncation condition more precise by only setting it
          when there's exactly one character of space remaining
          (glepnir).

closes: vim/vim#17108

32f2bb6e1e

Co-authored-by: glepnir <glephunter@gmail.com>
This commit is contained in:
zeertzjq
2025-04-16 07:38:57 +08:00
parent 6e5671b00d
commit 54d6055098
1 changed files with 8 additions and 10 deletions
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18
src/nvim/popupmenu.c
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@ -688,6 +688,9 @@ void pum_redraw(void)
int width = 0;
char *s = NULL;
p = pum_get_item(idx, item_type);
const bool next_isempty = j + 1 < 3 && pum_get_item(idx, order[j + 1]) == NULL;
if (p != NULL) {
for (;; MB_PTR_ADV(p)) {
if (s == NULL) {
@ -721,12 +724,12 @@ void pum_redraw(void)
char *rt = reverse_text(st);
char *rt_start = rt;
int cells = (int)mb_string2cells(rt);
if (pum_width == p_pmw
&& (pum_width - totwidth < cells
|| (j + 1 < 3 && pum_get_item(idx, order[j + 1]) != NULL))) {
int pad = next_isempty ? 0 : 2;
if (pum_width == p_pmw && pum_width - totwidth < cells + pad) {
need_fcs_trunc = true;
}
// only draw the text that fits
if (grid_col - cells < col_off - pum_width) {
do {
cells -= utf_ptr2cells(rt);
@ -752,9 +755,8 @@ void pum_redraw(void)
grid_col -= width;
} else {
int cells = (int)mb_string2cells(st);
if (pum_width == p_pmw
&& (pum_width - totwidth < cells
|| (j + 1 < 3 && pum_get_item(idx, order[j + 1]) != NULL))) {
int pad = next_isempty ? 0 : 2;
if (pum_width == p_pmw && pum_width - totwidth < cells + pad) {
need_fcs_trunc = true;
}
@ -796,10 +798,6 @@ void pum_redraw(void)
n = order[j] == CPT_ABBR ? 1 : 0;
}
bool next_isempty = false;
if (j + 1 < 3) {
next_isempty = pum_get_item(idx, order[j + 1]) == NULL;
}
// Stop when there is nothing more to display.
if ((j == 2)
|| (next_isempty && (j == 1 || (j == 0 && pum_get_item(idx, order[j + 2]) == NULL)))