FIX: layout for mixed descent multiline text objects

jklymak · jklymak · commit 6b750572993d · 2018-06-24T10:24:10.000-07:00
diff --git a/lib/matplotlib/text.py b/lib/matplotlib/text.py
@@ -324,14 +324,23 @@ def _get_layout(self, renderer):
             whs[i] = w, h
 
             baseline = (h - d) - thisy
-            thisy -= max(offsety, (h - d) * self._linespacing)
+            if i == 0:
+                # position at baseline
+                thisy = -(h - d)
+            else:
+                # put baseline a good distance from bottom of previous line
+                thisy -= max(offsety, (h - d) * self._linespacing)
             horizLayout[i] = thisx, thisy, w, h
             thisy -= d
             width = max(width, w)
             descent = d
 
-        ymin = horizLayout[-1][1]
-        ymax = horizLayout[0][1] + horizLayout[0][3]
+        # Bounding box definition:
+        # by defeinition, ymax is 0
+        ymax = 0
+        # ymin is the baseline of the last line subtract the descent of the
+        # last line.
+        ymin = horizLayout[-1][1] - descent
         height = ymax - ymin
         xmax = xmin + width
 
@@ -351,7 +360,6 @@ def _get_layout(self, renderer):
         # the corners of the unrotated bounding box
         cornersHoriz = np.array(
             [(xmin, ymin), (xmin, ymax), (xmax, ymax), (xmax, ymin)], float)
-        cornersHoriz[:, 1] -= descent
 
         # now rotate the bbox
         cornersRotated = M.transform(cornersHoriz)
