Revision: 4706
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=4706&view=rev
Author: mdboom
Date: 2007-12-12 06:08:15 -0800 (Wed, 12 Dec 2007)
Log Message:
-----------
Support alpha-blended text in the Agg and Svg backends.
Modified Paths:
--------------
trunk/matplotlib/lib/matplotlib/backends/backend_svg.py
trunk/matplotlib/src/_backend_agg.cpp
Modified: trunk/matplotlib/lib/matplotlib/backends/backend_svg.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/backends/backend_svg.py 2007-12-12
14:04:57 UTC (rev 4705)
+++ trunk/matplotlib/lib/matplotlib/backends/backend_svg.py 2007-12-12
14:08:15 UTC (rev 4706)
@@ -286,7 +286,7 @@
color = rgb2hex(gc.get_rgb())
if rcParams['svg.embed_char_paths']:
- svg = ['<g style="fill: %s" transform="' % color]
+ svg = ['<g style="fill: %s; opacity: %s" transform="' % (color,
gc.get_alpha())]
if angle != 0:
svg.append('translate(%s,%s)rotate(%1.1f)' % (x,y,-angle))
elif x != 0 or y != 0:
@@ -325,7 +325,8 @@
fontfamily = font.family_name
fontstyle = prop.get_style()
- style = 'font-size: %f; font-family: %s; font-style: %s; fill:
%s;'%(fontsize, fontfamily,fontstyle, color)
+ style = ('font-size: %f; font-family: %s; font-style: %s; fill:
%s; opacity: %s' %
+ (fontsize, fontfamily,fontstyle, color, gc.get_alpha()))
if angle!=0:
transform = 'transform="translate(%s,%s) rotate(%1.1f)
translate(%s,%s)"' % (x,y,-angle,-x,-y)
# Inkscape doesn't support rotate(angle x y)
Modified: trunk/matplotlib/src/_backend_agg.cpp
===================================================================
--- trunk/matplotlib/src/_backend_agg.cpp 2007-12-12 14:04:57 UTC (rev
4705)
+++ trunk/matplotlib/src/_backend_agg.cpp 2007-12-12 14:08:15 UTC (rev
4706)
@@ -2107,7 +2107,7 @@
do {
*dst = _color;
- dst->a = src->v;
+ dst->a = ((unsigned int)_color.a * (unsigned int)src->v) >> 8;
++src;
++dst;
} while (--len);
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