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stb_textedit: fixed misleading cursor-1 in STB_TEXTEDIT_K_LINESTART handlers. (#7925)

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`state->cursor - 1` in STB_TEXTEDIT_K_LINESTART handlers was technically misleadingly not UTF-8 compliant but things would naturally work anyhow.
This commit is contained in:
ocornut 2025-08-18 17:37:40 +02:00
parent aa2f40c3bb
commit 9f969944d5
1 changed files with 12 additions and 4 deletions
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16
imstb_textedit.h
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@ -1100,8 +1100,12 @@ retry:
stb_textedit_move_to_first(state); stb_textedit_move_to_first(state);
if (state->single_line) if (state->single_line)
state->cursor = 0; state->cursor = 0;
else while (state->cursor > 0 && STB_TEXTEDIT_GETCHAR(str, state->cursor-1) != STB_TEXTEDIT_NEWLINE) else while (state->cursor > 0) {
state->cursor = IMSTB_TEXTEDIT_GETPREVCHARINDEX(str, state->cursor); int prev = IMSTB_TEXTEDIT_GETPREVCHARINDEX(str, state->cursor);
if (STB_TEXTEDIT_GETCHAR(str, prev) == STB_TEXTEDIT_NEWLINE)
break;
state->cursor = prev;
}
state->has_preferred_x = 0; state->has_preferred_x = 0;
break; break;
@ -1128,8 +1132,12 @@ retry:
stb_textedit_prep_selection_at_cursor(state); stb_textedit_prep_selection_at_cursor(state);
if (state->single_line) if (state->single_line)
state->cursor = 0; state->cursor = 0;
else while (state->cursor > 0 && STB_TEXTEDIT_GETCHAR(str, state->cursor-1) != STB_TEXTEDIT_NEWLINE) else while (state->cursor > 0) {
state->cursor = IMSTB_TEXTEDIT_GETPREVCHARINDEX(str, state->cursor); int prev = IMSTB_TEXTEDIT_GETPREVCHARINDEX(str, state->cursor);
if (STB_TEXTEDIT_GETCHAR(str, prev) == STB_TEXTEDIT_NEWLINE)
break;
state->cursor = prev;
}
state->select_end = state->cursor; state->select_end = state->cursor;
state->has_preferred_x = 0; state->has_preferred_x = 0;
break; break;