[reactos] 01/01: [COMCTL32] Fix edit control cursor positioning (#7317)

[Doug Lyons]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=bc76250bd8cad3883397c9...

commit bc76250bd8cad3883397c94ce091632e8424b066
Author:     Doug Lyons [e-mail]
AuthorDate: Fri Sep 6 08:25:40 2024 -0500
Commit:     GitHub [e-mail]
CommitDate: Fri Sep 6 08:25:40 2024 -0500

[COMCTL32] Fix edit control cursor positioning (#7317)

Fix caret positioning regression from Wine Sync to Wine 5.0 affecting notepad.
    Restore older Wine code that handles caret position with ReactOS better.
    This was a regression from 0.4.15-dev-8612-g0707475 https://github.com/reactos/reactos/commit/0707475f6974a0add99fc396146c26a970...

CORE-19731
---
 dll/win32/comctl32/edit.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/dll/win32/comctl32/edit.c b/dll/win32/comctl32/edit.c
index 6d124ce64a4..767a63942f9 100644
--- a/dll/win32/comctl32/edit.c
+++ b/dll/win32/comctl32/edit.c
@@ -1050,7 +1050,15 @@ static LRESULT EDIT_EM_PosFromChar(EDITSTATE *es, INT index, BOOL after_wrap)
    	lw = line_def->width;
    	w = es->format_rect.right - es->format_rect.left;
    	if (line_def->ssa)
+#ifdef __REACTOS__ /* CORE-19731 & match win32ss/user/user32/controls/edit.c */
+		{
+			ScriptStringCPtoX(line_def->ssa, (index - 1) - li, TRUE, &x);
+			x -= es->x_offset;
+		}
+		else
+#else
    		ScriptStringCPtoX(line_def->ssa, (index - 1) - li, TRUE, &x);
+#endif
 #ifdef __REACTOS__ /* CORE-15780 */
    	x = (lw > 0 ? es->x_offset : x - es->x_offset);
 #else