Diagram.py: simplify setting bounding box fill and stroke when drawing text

diff --git a/Diagram.py b/Diagram.py
index b6de388..4e14b1c 100755 (executable)
--- a/Diagram.py
+++ b/Diagram.py
@@ -202,8 +202,8 @@ class Diagram(object):
     def draw_centered_text(self, cx, cy, text, theta=0,
                            color=[0, 0, 0],
                            align_baseline=False,
-                           bb_fill=True, bb_fill_color=[1, 1, 1, 0.8],
-                           bb_stroke=False, bb_stroke_color=[0, 0, 0, 0.5]):
+                           bb_fill_color=[1, 1, 1, 0.8],
+                           bb_stroke_color=None):
         cr = self.cr
 
         x_bearing, y_bearing, width, height, x_advance = cr.text_extents(text)[:5]
@@ -259,28 +259,28 @@ if __name__ == "__main__":
 
     theta = 0
 
-    advance = diagram.draw_centered_text(x_offset, y, "Ciao", theta, align_baseline=True, bb_stroke=True)
+    advance = diagram.draw_centered_text(x_offset, y, "Ciao", theta, align_baseline=True, bb_stroke_color=[0, 0, 0, 0.5])
     x_offset += advance
 
-    advance = diagram.draw_centered_text(x_offset, y, "____", theta + pi / 4, align_baseline=True, bb_stroke=True)
+    advance = diagram.draw_centered_text(x_offset, y, "____", theta + pi / 4, align_baseline=True, bb_stroke_color=[0, 0, 0, 0.5])
     x_offset += advance
 
-    advance = diagram.draw_centered_text(x_offset, y, "jxpqdlf", theta + pi / 2, align_baseline=True, bb_stroke=True)
+    advance = diagram.draw_centered_text(x_offset, y, "jxpqdlf", theta + pi / 2, align_baseline=True, bb_stroke_color=[0, 0, 0, 0.5])
     x_offset += advance
 
-    advance = diagram.draw_centered_text(x_offset, y, "pppp", theta + 3 * pi / 4, align_baseline=True, bb_stroke=True)
+    advance = diagram.draw_centered_text(x_offset, y, "pppp", theta + 3 * pi / 4, align_baseline=True, bb_stroke_color=[0, 0, 0, 0.5])
     x_offset += advance
 
-    advance = diagram.draw_centered_text(x_offset, y, "dddd", theta + pi, align_baseline=True, bb_stroke=True)
+    advance = diagram.draw_centered_text(x_offset, y, "dddd", theta + pi, align_baseline=True, bb_stroke_color=[0, 0, 0, 0.5])
     x_offset += advance
 
-    advance = diagram.draw_centered_text(x_offset, y, "Jjjj", theta + 5 * pi / 4, align_baseline=True, bb_stroke=True)
+    advance = diagram.draw_centered_text(x_offset, y, "Jjjj", theta + 5 * pi / 4, align_baseline=True, bb_stroke_color=[0, 0, 0, 0.5])
     x_offset += advance
 
-    advance = diagram.draw_centered_text(x_offset, y, "1369", theta + 3 * pi / 2, align_baseline=True, bb_stroke=True)
+    advance = diagram.draw_centered_text(x_offset, y, "1369", theta + 3 * pi / 2, align_baseline=True, bb_stroke_color=[0, 0, 0, 0.5])
     x_offset += advance
 
-    advance = diagram.draw_centered_text(x_offset, y, "qqqq", theta + 7 * pi / 4, align_baseline=True, bb_stroke=True)
+    advance = diagram.draw_centered_text(x_offset, y, "qqqq", theta + 7 * pi / 4, align_baseline=True, bb_stroke_color=[0, 0, 0, 0.5])
     x_offset += advance
 
     diagram.draw_line(0, y, 400, y, [0, 0, 1, 0.2])