Revision: 4866
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=4866&view=rev
Author: mdboom
Date: 2008-01-14 05:11:16 -0800 (Mon, 14 Jan 2008)
Log Message:
-----------
Fix SVG glyphs for use with Qt (which doesn't look forward for the
glyph definitions).
Modified Paths:
--------------
branches/v0_91_maint/lib/matplotlib/backends/backend_svg.py
Modified: branches/v0_91_maint/lib/matplotlib/backends/backend_svg.py
===================================================================
--- branches/v0_91_maint/lib/matplotlib/backends/backend_svg.py 2008-01-12
13:36:24 UTC (rev 4865)
+++ branches/v0_91_maint/lib/matplotlib/backends/backend_svg.py 2008-01-14
13:11:16 UTC (rev 4866)
@@ -284,8 +284,20 @@
fontsize = prop.get_size_in_points()
color = rgb2hex(gc.get_rgb())
+ write = self._svgwriter.write
if rcParams['svg.embed_char_paths']:
+ new_chars = []
+ for c in s:
+ path = self._add_char_def(prop, c)
+ if path is not None:
+ new_chars.append(path)
+ if len(new_chars):
+ write('<defs>\n')
+ for path in new_chars:
+ write(path)
+ write('</defs>\n')
+
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))
@@ -297,7 +309,7 @@
lastgind = None
currx = 0
for c in s:
- charid = self._add_char_def(prop, c)
+ charnum = self._get_char_def_id(prop, c)
ccode = ord(c)
gind = cmap.get(ccode)
if gind is None:
@@ -312,7 +324,7 @@
lastgind = gind
currx += kern/64.0
- svg.append('<use xlink:href="#%s"' % charid)
+ svg.append('<use xlink:href="#%s"' % charnum)
if currx != 0:
svg.append(' transform="translate(%s)"' %
(currx * (self.FONT_SCALE / fontsize)))
@@ -336,7 +348,7 @@
svg = """\
<text style="%(style)s" x="%(x)s" y="%(y)s" %(transform)s>%(thetext)s</text>
""" % locals()
- self._svgwriter.write (svg)
+ write(svg)
def _add_char_def(self, prop, char):
if isinstance(prop, FontProperties):
@@ -347,9 +359,9 @@
font.set_size(self.FONT_SCALE, 72)
ps_name = font.get_sfnt()[(1,0,0,6)]
char_id = urllib.quote('%s-%d' % (ps_name, ord(char)))
- char_num, path = self._char_defs.get(char_id, (None, None))
+ char_num = self._char_defs.get(char_id, None)
if char_num is not None:
- return char_num
+ return None
path_data = []
glyph = font.load_char(ord(char), flags=LOAD_NO_HINTING)
@@ -378,9 +390,20 @@
currx, curry = step[-2], -step[-1]
char_num = 'c_%x' % len(self._char_defs)
path_element = '<path id="%s" d="%s"/>\n' % (char_num,
''.join(path_data))
- self._char_defs[char_id] = (char_num, path_element)
- return char_num
+ self._char_defs[char_id] = char_num
+ return path_element
+ def _get_char_def_id(self, prop, char):
+ if isinstance(prop, FontProperties):
+ newprop = prop.copy()
+ font = self._get_font(newprop)
+ else:
+ font = prop
+ font.set_size(self.FONT_SCALE, 72)
+ ps_name = font.get_sfnt()[(1,0,0,6)]
+ char_id = urllib.quote('%s-%d' % (ps_name, ord(char)))
+ return self._char_defs[char_id]
+
def _draw_mathtext(self, gc, x, y, s, prop, angle):
"""
Draw math text using matplotlib.mathtext
@@ -390,12 +413,22 @@
svg_glyphs = svg_elements.svg_glyphs
svg_rects = svg_elements.svg_rects
color = rgb2hex(gc.get_rgb())
+ write = self._svgwriter.write
- self.open_group("mathtext")
-
style = "fill: %s" % color
if rcParams['svg.embed_char_paths']:
+ new_chars = []
+ for font, fontsize, thetext, new_x, new_y_mtc, metrics in
svg_glyphs:
+ path = self._add_char_def(font, thetext)
+ if path is not None:
+ new_chars.append(path)
+ if len(new_chars):
+ write('<defs>\n')
+ for path in new_chars:
+ write(path)
+ write('</defs>\n')
+
svg = ['<g style="%s" transform="' % style]
if angle != 0:
svg.append('translate(%s,%s)rotate(%1.1f)'
@@ -405,7 +438,7 @@
svg.append('">\n')
for font, fontsize, thetext, new_x, new_y_mtc, metrics in
svg_glyphs:
- charid = self._add_char_def(font, thetext)
+ charid = self._get_char_def_id(font, thetext)
svg.append('<use xlink:href="#%s"
transform="translate(%s,%s)scale(%s)"/>\n' %
(charid, new_x, -new_y_mtc, fontsize /
self.FONT_SCALE))
@@ -459,16 +492,12 @@
svg.append('<rect x="%s" y="%s" width="%s" height="%s"
fill="black" stroke="none" />' % (x, -y + height, width, height))
svg.append("</g>")
- self._svgwriter.write (''.join(svg))
+ self.open_group("mathtext")
+ write (''.join(svg))
self.close_group("mathtext")
def finish(self):
write = self._svgwriter.write
- if len(self._char_defs):
- write('<defs id="fontpaths">\n')
- for char_num, path in self._char_defs.values():
- write(path)
- write('</defs>\n')
write('</svg>\n')
def flipy(self):
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