Bugfix: Add stream for AFM path

aitikgupta · aitikgupta · commit 1fbd5e25fd2b · 2021-08-13T16:29:09.000+05:30
diff --git a/lib/matplotlib/backends/backend_ps.py b/lib/matplotlib/backends/backend_ps.py
@@ -645,7 +645,7 @@ def draw_text(self, gc, x, y, s, prop, angle, ismath=False, mtext=None):
         if mpl.rcParams['ps.useafm']:
             font = self._get_font_afm(prop)
             scale = 0.001 * prop.get_size_in_points()
-
+            stream = []
             thisx = 0
             last_name = None  # kerns returns 0 for None.
             xs_names = []
@@ -661,6 +661,9 @@ def draw_text(self, gc, x, y, s, prop, angle, ismath=False, mtext=None):
                 thisx += kern * scale
                 xs_names.append((thisx, name))
                 thisx += width * scale
+            ps_name = (font.postscript_name
+                       .encode("ascii", "replace").decode("ascii"))
+            stream.append((ps_name, xs_names))
 
         else:
             font = self._get_font_ttf(prop)
@@ -680,11 +683,11 @@ def draw_text(self, gc, x, y, s, prop, angle, ismath=False, mtext=None):
             # append the last entry
             stream.append(curr_stream)
 
-            for ps_name, xs_names in stream:
-                self.set_font(ps_name, prop.get_size_in_points(), False)
-                thetext = "\n".join(f"{x:f} 0 m /{name:s} glyphshow"
-                                    for x, name in xs_names)
-                self._pswriter.write(f"""\
+        for ps_name, xs_names in stream:
+            self.set_font(ps_name, prop.get_size_in_points(), False)
+            thetext = "\n".join(f"{x:f} 0 m /{name:s} glyphshow"
+                                for x, name in xs_names)
+            self._pswriter.write(f"""\
 gsave
 {self._get_clip_cmd(gc)}
 {x:f} {y:f} translate
