Return size of rendered text from Text.text()

deshipu · deshipu · commit 2ae4bb158f56 · 2021-10-07T12:25:37.000+02:00
Return the actual area taken up by the rendered text, so that it
can be more easily centered.

Also allow characters &lt;= 32 in text, except for newline.
diff --git a/stage.py b/stage.py
@@ -529,16 +529,26 @@ def cursor(self, x=None, y=None):
             self.column = min(max(0, x), self.height - 1)
 
     def text(self, text, hightlight=False):
-        """Display text starting at the current cursor location."""
+        """
+        Display text starting at the current cursor location.
+        Return the dimensions of the rendered text.
+        """
+        longest = 0
+        tallest = 0
         for c in text:
-            if ord(c) >= 32:
+            if c != '\n':
                 self.char(self.column, self.row, c, hightlight)
                 self.column += 1
             if self.column >= self.width or c == '\n':
+                longest = max(longest, self.column)
                 self.column = 0
                 self.row += 1
                 if self.row >= self.height:
+                    tallest = max(tallest, self.row)
                     self.row = 0
+        longest = max(longest, self.column)
+        tallest = max(tallest, self.row) + (1 if self.column > 0 else 0)
+        return longest * 8, tallest * 8
 
     def clear(self):
         """Clear all text from the layer."""
