commit f5aa269f2d51fe2366e35d7fc3626b05aba31651
author Hirohito Higashi <h.east.727@gmail.com> Sun Jun 15 16:09:22 2025 +0200
committer Christian Brabandt <cb@256bit.org> Sun Jun 15 16:09:22 2025 +0200
tree b28c094d7995f30c6c4df587e25ed787b348c2e1
parent 631a50ceb9a312a9042a8e8420afd8e948497d90

patch 9.1.1458: tabpanel: tabs not properly updated with 'stpl'

Problem:  tabpanel: tabs not properly updated with 'stpl'
Solution: remember the Column offset per tabpage
          (Hirohito Higashi)

fixes: #17519
closes: #17544

Signed-off-by: Hirohito Higashi <h.east.727@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

src/window.c

diff --git a/src/window.c b/src/window.c
index f3b23e8..52f4b1a 100644
--- a/src/window.c
+++ b/src/window.c
@@ -3463,9 +3463,6 @@
 	redraw_tabline = TRUE;
 	if (h != tabline_height())
 	    shell_new_rows();
-#if defined(FEAT_TABPANEL)
-	redraw_tabpanel = TRUE;
-#endif
 	shell_new_columns();
     }
 
@@ -4767,19 +4764,7 @@
 #endif
 #if defined(FEAT_TABPANEL)
 	if (prev_columns != COLUMNS_WITHOUT_TPL())
-	{
-	    tabpage_T *save_curtab = curtab;
-
-	    unuse_tabpage(curtab);
-	    use_tabpage(prev_tp);
-	    shell_new_rows();
 	    shell_new_columns();
-
-	    unuse_tabpage(curtab);
-	    use_tabpage(save_curtab);
-	    shell_new_rows();
-	    shell_new_columns();
-	}
 #endif
 	redraw_all_later(UPD_NOT_VALID);
 	apply_autocmds(EVENT_WINNEW, NULL, NULL, FALSE, curbuf);
@@ -4988,7 +4973,10 @@
     tp->tp_lastwin = lastwin;
     tp->tp_old_Rows = Rows;
     if (tp->tp_old_Columns != -1)
+    {
 	tp->tp_old_Columns = topframe->fr_width;
+	tp->tp_old_coloff = firstwin->w_wincol;
+    }
     firstwin = NULL;
     lastwin = NULL;
     return OK;
@@ -5051,12 +5039,14 @@
 #endif
 		))
 	shell_new_rows();
-    if (curtab->tp_old_Columns != topframe->fr_width)
+    if (curtab->tp_old_Columns != COLUMNS_WITHOUT_TPL()
+	    || curtab->tp_old_coloff != TPL_LCOL(NULL))
     {
 	if (starting == 0)
 	{
 	    shell_new_columns();	// update window widths
 	    curtab->tp_old_Columns = topframe->fr_width;
+	    curtab->tp_old_coloff = firstwin->w_wincol;
 	}
 	else
 	    curtab->tp_old_Columns = -1;  // update window widths later