From 1d3797edbc961787b3a0dcbbf00f4e5802ad4ce2 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Sat, 25 Nov 2023 07:34:27 -0700
Subject: [PATCH] [interpolatablePlot] Add note on cupcake

---
 Lib/fontTools/varLib/interpolatablePlot.py | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/Lib/fontTools/varLib/interpolatablePlot.py b/Lib/fontTools/varLib/interpolatablePlot.py
index d11566f66..6ee3dc9aa 100644
--- a/Lib/fontTools/varLib/interpolatablePlot.py
+++ b/Lib/fontTools/varLib/interpolatablePlot.py
@@ -91,6 +91,8 @@ class InterpolatablePlot:
     start_arrow_length = 20
     contour_colors = ((1, 0, 0), (0, 0, 1), (0, 1, 0), (1, 1, 0), (1, 0, 1), (0, 1, 1))
     contour_alpha = 0.5
+    no_issues_label = "Your font's good! Have a cupcake..."
+    no_issues_label_color = (0, 0.5, 0)
     cupcake_color = (0.3, 0, 0.3)
     cupcake = r"""
                           ,@.
@@ -807,6 +809,17 @@ class InterpolatablePlot:
 
     def draw_cupcake(self):
         self.set_size(self.total_width(), self.total_height())
+
+        self.draw_label(
+            self.no_issues_label,
+            x=self.pad,
+            y=self.pad,
+            color=self.no_issues_label_color,
+            width=self.total_width() - 2 * self.pad,
+            align=0.5,
+            bold=True,
+        )
+
         cupcake = self.cupcake.splitlines()
         cr = cairo.Context(self.surface)
         cr.set_source_rgb(*self.cupcake_color)
@@ -827,9 +840,9 @@ class InterpolatablePlot:
             return
         cr.scale(
             (self.total_width() - 2 * self.pad) / width,
-            (self.total_height() - 2 * self.pad) / height,
+            (self.total_height() - 2 * self.pad - self.line_height) / height,
         )
-        cr.translate(self.pad, self.pad + font_ascent)
+        cr.translate(self.pad, self.pad + font_ascent + self.line_height)
         for line in cupcake:
             cr.move_to(0, 0)
             cr.show_text(line)