[leon] set png background transparent when using dvipng. See #7153 in Gajim's trac.

2012-05-06 10:52:51 +02:00
parent e8f0870878
commit 956e836f99
1 changed files with 3 additions and 3 deletions
--- a/latex/latex.py
+++ b/latex/latex.py
@@ -174,9 +174,9 @@ class LatexRenderer(Thread):
        if exitcode == 0:
            # convert dvi to png
            log.debug('DVI OK')
-            exitcode = try_run(['dvipng'] + fg_str('tex') + ['-T', 'tight',
-                '-D', self.png_dpi, tmpfile + '.dvi', '-o', tmpfile + '.png'],
-                tmpdir)
+            exitcode = try_run(['dvipng', '-bg', 'Transparent'] + fg_str('tex')\
+                + ['-T', 'tight', '-D', self.png_dpi, tmpfile + '.dvi', '-o',
+                tmpfile + '.png'], tmpdir)

            if exitcode:
                # dvipng failed, try convert