Revision: 6133
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=6133&view=rev
Author: efiring
Date: 2008-09-29 07:06:28 +0000 (Mon, 29 Sep 2008)
Log Message:
-----------
Add dpi kwarg and docstring to Text.get_window_extent()
Modified Paths:
--------------
trunk/matplotlib/lib/matplotlib/text.py
Modified: trunk/matplotlib/lib/matplotlib/text.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/text.py 2008-09-28 22:05:23 UTC (rev
6132)
+++ trunk/matplotlib/lib/matplotlib/text.py 2008-09-29 07:06:28 UTC (rev
6133)
@@ -166,7 +166,7 @@
self._rotation = rotation
self._fontproperties = fontproperties
self._bbox = None
- self._bbox_patch = None # a FanceBboxPatch instance
+ self._bbox_patch = None # a FancyBboxPatch instance
self._renderer = None
if linespacing is None:
linespacing = 1.2 # Maybe use rcParam later.
@@ -356,7 +356,7 @@
def get_bbox_patch(self):
"""
- Retrun the bbox Patch object. Returns None if the the
+ Return the bbox Patch object. Returns None if the the
FancyBboxPatch is not made.
"""
return self._bbox_patch
@@ -519,9 +519,32 @@
"Return the vertical alignment as string"
return self._verticalalignment
- def get_window_extent(self, renderer=None):
+ def get_window_extent(self, renderer=None, dpi=None):
+ '''
+ Return a Bbox bounding the text, in display units (dots).
+
+ In addition to being used internally,
+ this is useful for specifying clickable regions in
+ a png file on a web page.
+
+ *renderer* defaults to the _renderer attribute of the
+ text object. This is not assigned until the first execution
+ of the draw() method, so you must use this kwarg if you
+ want to call get_window_extent() prior to the first draw().
+ For getting web page regions, it is simpler to call the
+ method after saving the figure.
+
+ *dpi* defaults to self.figure.dpi; the renderer dpi is
+ irrelevant. For the web application, if figure.dpi is not
+ the value used when saving the figure, then the value that
+ was used must be specified as the *dpi* argument.
+
+ '''
#return _unit_box
if not self.get_visible(): return Bbox.unit()
+ if dpi is not None:
+ dpi_orig = self.figure.dpi
+ self.figure.dpi = dpi
if self._text == '':
tx, ty = self._get_xy_display()
return Bbox.from_bounds(tx,ty,0,0)
@@ -531,11 +554,12 @@
if self._renderer is None:
raise RuntimeError('Cannot get window extent w/o renderer')
- angle = self.get_rotation()
bbox, info = self._get_layout(self._renderer)
x, y = self.get_position()
x, y = self.get_transform().transform_point((x, y))
bbox = bbox.translated(x, y)
+ if dpi is not None:
+ self.figure.dpi = dpi_orig
return bbox
def set_backgroundcolor(self, color):
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