From fed326db1eb532a15b9df64b64f4b3d6a7645dab Mon Sep 17 00:00:00 2001
From: Guillaume Ayoub <guillaume.ayoub@kozea.fr>
Date: Fri, 2 Sep 2011 17:42:00 +0200
Subject: [PATCH] Revert the font-size: 0 detection

---
 weasy/draw/helpers.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/weasy/draw/helpers.py b/weasy/draw/helpers.py
index a1f7dcdef..ad17dab6c 100644
--- a/weasy/draw/helpers.py
+++ b/weasy/draw/helpers.py
@@ -321,6 +321,11 @@ def draw_replacedbox(context, box):
 
 def draw_text(context, textbox):
     """Draw ``textbox`` to a ``cairo.Context`` from ``PangoCairo.Context``."""
+    # Pango crashes with font-size: 0
+    font_size = get_single_pixel_value(textbox.style.font_size)
+    if font_size == 0:
+        return
+
     context.move_to(textbox.position_x, textbox.position_y)
     fragment = TextLineFragment.from_textbox(textbox, context=context)
     fragment.show_layout()