Fix coarse scroll deltas on macOS

* src/nsterm.m (- mouseDown): Multiply deltas as appropriate.

diff --git a/src/nsterm.m b/src/nsterm.m
index 5c19b0cab8212ff474f9a493582564b1fafecee5..5d39be3a870b38ee8715b52d531ff003b0b228dc 100644 (file)
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -6658,8 +6658,10 @@ not_in_argv (NSString *arg)
                 ? ceil (fabs (delta)) : 1;
 
               scrollUp = delta > 0;
-             x = [theEvent scrollingDeltaX];
-             y = [theEvent scrollingDeltaY];
+             x = ([theEvent scrollingDeltaX]
+                  * FRAME_COLUMN_WIDTH (emacsframe));
+             y = ([theEvent scrollingDeltaY]
+                  * FRAME_LINE_HEIGHT (emacsframe));
             }
 
           if (lines == 0 && mwheel_coalesce_scroll_events)