Change cursor color on NS port when it matches the face background

* src/macfont.m (CG_SET_FILL_COLOR_WITH_FRAME_CURSOR): New macro.
(CG_SET_FILL_COLOR_WITH_FRAME_BACKGROUND): New macro.
(macfont_draw): When the cursor's color matches the face background,
set the fill color of the cursor to the face foreground.
* src/nsterm.m (ns_maybe_dumpglyphs_background): When dumping the
background of a glyph string, apply the logic mentioned
above.  (Bug#62573)

2 files changed, 47 insertions, 23 deletions

diff --git a/src/macfont.m b/src/macfont.m
index d0cdbcd08c7..9f9f6f4efaf 100644
--- a/src/macfont.m
+++ b/src/macfont.m
@@ -632,21 +632,35 @@ get_cgcolor_from_nscolor (NSColor *nsColor, struct frame *f)
 
 #define CG_SET_FILL_COLOR_WITH_FACE_FOREGROUND(context, face)           \
   do {                                                                  \
-    CGColorRef refcol_ = get_cgcolor (NS_FACE_FOREGROUND (face));       \
-    CGContextSetFillColorWithColor (context, refcol_) ;                 \
-    CGColorRelease (refcol_);                                           \
+    CGColorRef refcol = get_cgcolor (NS_FACE_FOREGROUND (face));        \
+    CGContextSetFillColorWithColor (context, refcol);                   \
+    CGColorRelease (refcol);                                            \
   } while (0)
 #define CG_SET_FILL_COLOR_WITH_FACE_BACKGROUND(context, face)           \
   do {                                                                  \
-    CGColorRef refcol_ = get_cgcolor (NS_FACE_BACKGROUND (face));       \
-    CGContextSetFillColorWithColor (context, refcol_);                  \
-    CGColorRelease (refcol_);                                           \
+    CGColorRef refcol = get_cgcolor (NS_FACE_BACKGROUND (face));        \
+    CGContextSetFillColorWithColor (context, refcol);                   \
+    CGColorRelease (refcol);                                            \
+  } while (0)
+#define CG_SET_FILL_COLOR_WITH_FRAME_CURSOR(context, frame)             \
+  do {                                                                  \
+    CGColorRef refcol                                                   \
+      = get_cgcolor_from_nscolor (FRAME_CURSOR_COLOR (frame), frame);   \
+    CGContextSetFillColorWithColor (context, refcol);                   \
+    CGColorRelease (refcol);                                            \
+  } while (0)
+#define CG_SET_FILL_COLOR_WITH_FRAME_BACKGROUND(context, frame)         \
+  do {                                                                  \
+    CGColorRef refcol                                                   \
+      = get_cgcolor_from_nscolor (FRAME_BACKGROUND_COLOR (frame), frame); \
+    CGContextSetFillColorWithColor (context, refcol);                   \
+    CGColorRelease (refcol);                                            \
   } while (0)
 #define CG_SET_STROKE_COLOR_WITH_FACE_FOREGROUND(context, face)         \
   do {                                                                  \
-    CGColorRef refcol_ = get_cgcolor (NS_FACE_FOREGROUND (face));       \
-    CGContextSetStrokeColorWithColor (context, refcol_);                \
-    CGColorRelease (refcol_);                                           \
+    CGColorRef refcol = get_cgcolor (NS_FACE_FOREGROUND (face));        \
+    CGContextSetStrokeColorWithColor (context, refcol);                 \
+    CGColorRelease (refcol);                                            \
   } while (0)
 
 
@@ -2933,9 +2947,12 @@ macfont_draw (struct glyph_string *s, int from, int to, int x, int y,
     {
       if (s->hl == DRAW_CURSOR)
         {
-	  CGColorRef colorref = get_cgcolor_from_nscolor (FRAME_CURSOR_COLOR (f), f);
-	  CGContextSetFillColorWithColor (context, colorref);
-	  CGColorRelease (colorref);
+          if (face && (NS_FACE_BACKGROUND (face)
+                       == [(NSColor *) FRAME_CURSOR_COLOR (f)
+                                       unsignedLong]))
+            CG_SET_FILL_COLOR_WITH_FACE_FOREGROUND (context, face);
+          else
+            CG_SET_FILL_COLOR_WITH_FRAME_CURSOR (context, f);
         }
       else
         CG_SET_FILL_COLOR_WITH_FACE_BACKGROUND (context, face);
@@ -2949,9 +2966,12 @@ macfont_draw (struct glyph_string *s, int from, int to, int x, int y,
       CGContextScaleCTM (context, 1, -1);
       if (s->hl == DRAW_CURSOR)
         {
-	  CGColorRef colorref = get_cgcolor_from_nscolor (FRAME_BACKGROUND_COLOR (f), f);
-	  CGContextSetFillColorWithColor (context, colorref);
-	  CGColorRelease (colorref);
+          if (face && (NS_FACE_BACKGROUND (face)
+                       == [(NSColor *) FRAME_CURSOR_COLOR (f)
+                                       unsignedLong]))
+            CG_SET_FILL_COLOR_WITH_FACE_BACKGROUND (context, face);
+          else
+            CG_SET_FILL_COLOR_WITH_FRAME_BACKGROUND (context, f);
         }
       else
         CG_SET_FILL_COLOR_WITH_FACE_FOREGROUND (context, face);
diff --git a/src/nsterm.m b/src/nsterm.m
index c9f955000ac..37462cf49e2 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -3750,14 +3750,18 @@ ns_maybe_dumpglyphs_background (struct glyph_string *s, char force_p)
 	{
           struct face *face = s->face;
           if (!face->stipple)
-	    {
-	      if (s->hl != DRAW_CURSOR)
-		[(NS_FACE_BACKGROUND (face) != 0
-		  ? [NSColor colorWithUnsignedLong:NS_FACE_BACKGROUND (face)]
-		  : FRAME_BACKGROUND_COLOR (s->f)) set];
-	      else
-		[FRAME_CURSOR_COLOR (s->f) set];
-	    }
+            {
+              if (s->hl != DRAW_CURSOR)
+                [(NS_FACE_BACKGROUND (face) != 0
+                  ? [NSColor colorWithUnsignedLong:NS_FACE_BACKGROUND (face)]
+                  : FRAME_BACKGROUND_COLOR (s->f)) set];
+              else if (face && (NS_FACE_BACKGROUND (face)
+                                == [(NSColor *) FRAME_CURSOR_COLOR (s->f)
+                                                unsignedLong]))
+                [[NSColor colorWithUnsignedLong:NS_FACE_FOREGROUND (face)] set];
+              else
+                [FRAME_CURSOR_COLOR (s->f) set];
+            }
           else
             {
               struct ns_display_info *dpyinfo = FRAME_DISPLAY_INFO (s->f);