+
+
+ # need to have margin, otherwise edges of letters will
+ # be cropped off.
+
+ margin = 3
+ fo = open (trans_ps, 'w')
+ fo.write ('%d %d translate\n' % (-bbox[0] + margin,
+ -bbox[1] + margin))
+ fo.close ()
+
+ x = (2* margin + bbox[2] - bbox[0]) \
+ * resolution / 72.0
+ y = (2* margin + bbox[3] - bbox[1]) \
+ * resolution / 72.0
+ if x == 0:
+ x = 1
+ if y == 0:
+ y = 1
+
+ cmd = r'''gs -g%dx%d -sDEVICE=pnggray -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -q -sOutputFile=%s -r%d -dNOPAUSE %s %s -c quit ''' % \
+ (x, y, output_file, resolution, trans_ps, ps_name)
+
+ rms = glob.glob (base + '-page*.png')
+ map (os.unlink, rms)
+ else:
+ output_file = re.sub (r'\.e?ps', '-page%d.png', ps_name)
+
+ rmfile = base + '.png'
+ if os.path.isfile (rmfile):
+ os.unlink (rmfile)
+
+ cmd = r'''gs -s -sDEVICE=pnggray -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -q -sOutputFile=%s -dNOPAUSE -r%d %s -c quit''' % (output_file,
+ resolution, ps_name)