use class var rather than self for texmanager hack state

jdh2358 · jdh2358 · commit e423cdfedbcf · 2010-07-02T19:03:05.000Z
svn path=/trunk/matplotlib/; revision=8487
diff --git a/examples/pylab_examples/tex_demo.py b/examples/pylab_examples/tex_demo.py
@@ -29,5 +29,5 @@
 title(r"\TeX\ is Number $\displaystyle\sum_{n=1}^\infty\frac{-e^{i\pi}}{2^n}$!",
       fontsize=16, color='r')
 grid(True)
-
+#savefig('tex_demo')
 show()
diff --git a/lib/matplotlib/texmanager.py b/lib/matplotlib/texmanager.py
@@ -92,7 +92,7 @@ class TexManager:
         os.mkdir(texcache)
 
     _dvipng_hack_alpha = None
-
+    #_dvipng_hack_alpha = dvipng_hack_alpha()
     # mappable cache of
     rgba_arrayd = {}
     grey_arrayd = {}
@@ -455,7 +455,7 @@ def make_png(self, tex, fontsize, dpi):
                 report = 'No dvipng error report available.'
             if exit_status:
                 raise RuntimeError('dvipng was not able to \
-process the flowing file:\n%s\nHere is the full report generated by dvipng: \
+process the following file:\n%s\nHere is the full report generated by dvipng: \
 \n\n'% dvifile + report)
             else: mpl.verbose.report(report, 'debug')
             try: os.remove(outfile)
@@ -516,9 +516,9 @@ def get_grey(self, tex, fontsize=None, dpi=None):
             if rcParams['text.dvipnghack'] is not None:
                 hack = rcParams['text.dvipnghack']
             else:
-                if self._dvipng_hack_alpha is None:
-                    self._dvipng_hack_alpha = dvipng_hack_alpha()
-                hack = self._dvipng_hack_alpha
+                if TexManager._dvipng_hack_alpha is None:
+                    TexManager._dvipng_hack_alpha = dvipng_hack_alpha()
+                hack = TexManager._dvipng_hack_alpha
 
 
             if hack:
