[Commit-gnuradio] [gnuradio] 01/01: Fix gnuradio for wxPython3/GTK+3

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jcorgan pushed a commit to branch maint
in repository gnuradio.

commit 80ee28e1490fa1aa7cac6e21506c2890ead9affd
Author: Scott Talbert <address@hidden>
Date:   Thu Jan 29 19:31:47 2015 -0500

    Fix gnuradio for wxPython3/GTK+3
    
    MemoryDC needs to have a bitmap selected before using it
---
 gr-wxgui/python/wxgui/plotter/gltext.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gr-wxgui/python/wxgui/plotter/gltext.py 
b/gr-wxgui/python/wxgui/plotter/gltext.py
index 0b6e3f5..55627bc 100644
--- a/gr-wxgui/python/wxgui/plotter/gltext.py
+++ b/gr-wxgui/python/wxgui/plotter/gltext.py
@@ -149,6 +149,10 @@ class TextElement(object):
         # get a memory dc
         dc = wx.MemoryDC()
 
+        # Select an empty bitmap into the MemoryDC - otherwise the call to
+        # GetMultiLineTextExtent() may fail below
+        dc.SelectObject(wx.EmptyBitmap(1,1))
+
         # set our font
         dc.SetFont(self._font)