From 44c8a1f27494c6717bda6664f53e81b7b47090d5 Mon Sep 17 00:00:00 2001
From: Ell <ell_se@yahoo.com>
Date: Mon, 4 Feb 2019 09:52:53 -0500
Subject: [PATCH] app: improve rotate-tool undo description

When rotating an item around its center using the rotate tool,
i.e., if the pivot point hasn't been moved, don't include the pivot
coordinates in the undo description.
---
 app/tools/gimprotatetool.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/app/tools/gimprotatetool.c b/app/tools/gimprotatetool.c
index cd5fe2b84f..0b16ddea2c 100644
--- a/app/tools/gimprotatetool.c
+++ b/app/tools/gimprotatetool.c
@@ -187,11 +187,21 @@ gimp_rotate_tool_get_undo_desc (GimpTransformTool *tr_tool)
 {
   GimpTransformGridTool *tg_tool = GIMP_TRANSFORM_GRID_TOOL (tr_tool);
 
-  return g_strdup_printf (C_("undo-type",
-                             "Rotate by %-3.3g° around (%g, %g)"),
-                          gimp_rad_to_deg (tg_tool->trans_info[ANGLE]),
-                          tg_tool->trans_info[PIVOT_X],
-                          tg_tool->trans_info[PIVOT_Y]);
+  if (tg_tool->trans_info[PIVOT_X] == (tr_tool->x1 + tr_tool->x2) / 2.0 &&
+      tg_tool->trans_info[PIVOT_Y] == (tr_tool->y1 + tr_tool->y2) / 2.0)
+    {
+      return g_strdup_printf (C_("undo-type",
+                                 "Rotate by %-3.3g°"),
+                              gimp_rad_to_deg (tg_tool->trans_info[ANGLE]));
+    }
+  else
+    {
+      return g_strdup_printf (C_("undo-type",
+                                 "Rotate by %-3.3g° around (%g, %g)"),
+                              gimp_rad_to_deg (tg_tool->trans_info[ANGLE]),
+                              tg_tool->trans_info[PIVOT_X],
+                              tg_tool->trans_info[PIVOT_Y]);
+    }
 }
 
 static void