Revision: 8105
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=8105&view=rev
Author: leejjoon
Date: 2010-01-29 18:03:13 +0000 (Fri, 29 Jan 2010)
Log Message:
-----------
draggable legend now optionally blitted
Modified Paths:
--------------
trunk/matplotlib/examples/animation/draggable_legend.py
trunk/matplotlib/lib/matplotlib/legend.py
trunk/matplotlib/lib/matplotlib/offsetbox.py
trunk/matplotlib/lib/matplotlib/text.py
Modified: trunk/matplotlib/examples/animation/draggable_legend.py
===================================================================
--- trunk/matplotlib/examples/animation/draggable_legend.py 2010-01-29
17:33:34 UTC (rev 8104)
+++ trunk/matplotlib/examples/animation/draggable_legend.py 2010-01-29
18:03:13 UTC (rev 8105)
@@ -37,7 +37,7 @@
ax.add_artist(ab)
-d3 = ab.draggable()
+d3 = ab.draggable(use_blit=True)
plt.show()
Modified: trunk/matplotlib/lib/matplotlib/legend.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/legend.py 2010-01-29 17:33:34 UTC (rev
8104)
+++ trunk/matplotlib/lib/matplotlib/legend.py 2010-01-29 18:03:13 UTC (rev
8105)
@@ -39,9 +39,10 @@
class DraggableLegend(DraggableOffsetBox):
- def __init__(self, legend):
+ def __init__(self, legend, use_blit=False):
self.legend=legend
- DraggableOffsetBox.__init__(self, legend, legend._legend_box)
+ DraggableOffsetBox.__init__(self, legend, legend._legend_box,
+ use_blit=use_blit)
def artist_picker(self, legend, evt):
return self.legend.legendPatch.contains(evt)
@@ -917,7 +918,7 @@
return ox, oy
- def draggable(self, state=None):
+ def draggable(self, state=None, use_blit=False):
"""
Set the draggable state -- if state is
@@ -939,7 +940,7 @@
if state:
if self._draggable is None:
- self._draggable = DraggableLegend(self)
+ self._draggable = DraggableLegend(self, use_blit)
else:
if self._draggable is not None:
self._draggable.disconnect()
Modified: trunk/matplotlib/lib/matplotlib/offsetbox.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/offsetbox.py 2010-01-29 17:33:34 UTC
(rev 8104)
+++ trunk/matplotlib/lib/matplotlib/offsetbox.py 2010-01-29 18:03:13 UTC
(rev 8105)
@@ -1416,10 +1416,11 @@
the normalized axes coordinate and set a relavant attribute.
"""
- def __init__(self, ref_artist):
+ def __init__(self, ref_artist, use_blit=False):
self.ref_artist = ref_artist
self.got_artist = False
-
+ self._use_blit = use_blit
+
self.canvas = self.ref_artist.figure.canvas
c2 = self.canvas.mpl_connect('pick_event', self.on_pick)
c3 = self.canvas.mpl_connect('button_release_event', self.on_release)
@@ -1432,16 +1433,34 @@
dx = evt.x - self.mouse_x
dy = evt.y - self.mouse_y
self.update_offset(dx, dy)
+ self.canvas.draw()
+ def on_motion_blit(self, evt):
+ if self.got_artist:
+ dx = evt.x - self.mouse_x
+ dy = evt.y - self.mouse_y
+ self.update_offset(dx, dy)
+ self.canvas.restore_region(self.background)
+ self.ref_artist.draw(self.ref_artist.figure._cachedRenderer)
+ self.canvas.blit(self.ref_artist.figure.bbox)
+
def on_pick(self, evt):
if evt.artist == self.ref_artist:
- self.save_offset()
self.mouse_x = evt.mouseevent.x
self.mouse_y = evt.mouseevent.y
self.got_artist = True
- self._c1 = self.canvas.mpl_connect('motion_notify_event',
self.on_motion)
+ if self._use_blit:
+ self.ref_artist.set_animated(True)
+ self.canvas.draw()
+ self.background =
self.canvas.copy_from_bbox(self.ref_artist.figure.bbox)
+ self.ref_artist.draw(self.ref_artist.figure._cachedRenderer)
+ self.canvas.blit(self.ref_artist.figure.bbox)
+ self._c1 = self.canvas.mpl_connect('motion_notify_event',
self.on_motion_blit)
+ else:
+ self._c1 = self.canvas.mpl_connect('motion_notify_event',
self.on_motion)
+ self.save_offset()
def on_release(self, event):
if self.got_artist:
@@ -1449,6 +1468,9 @@
self.got_artist = False
self.canvas.mpl_disconnect(self._c1)
+ if self._use_blit:
+ self.ref_artist.set_animated(False)
+
def disconnect(self):
'disconnect the callbacks'
for cid in self.cids:
@@ -1468,8 +1490,8 @@
class DraggableOffsetBox(DraggableBase):
- def __init__(self, ref_artist, offsetbox):
- DraggableBase.__init__(self, ref_artist)
+ def __init__(self, ref_artist, offsetbox, use_blit=False):
+ DraggableBase.__init__(self, ref_artist, use_blit=use_blit)
self.offsetbox = offsetbox
def save_offset(self):
@@ -1482,7 +1504,6 @@
def update_offset(self, dx, dy):
loc_in_canvas = self.offsetbox_x + dx, self.offsetbox_y + dy
self.offsetbox.set_offset(loc_in_canvas)
- self.offsetbox.figure.canvas.draw()
def get_loc_in_canvas(self):
@@ -1496,8 +1517,8 @@
class DraggableAnnotation(DraggableBase):
- def __init__(self, annotation):
- DraggableBase.__init__(self, annotation)
+ def __init__(self, annotation, use_blit=False):
+ DraggableBase.__init__(self, annotation, use_blit=use_blit)
self.annotation = annotation
def save_offset(self):
@@ -1519,7 +1540,6 @@
ann.xytext = self.ox + dx, self.oy + dy
x, y = ann.xytext
xy = ann._get_xy(x, y, ann.textcoords)
- self.canvas.draw()
def finalize_offset(self):
loc_in_canvas = self.annotation.xytext
Modified: trunk/matplotlib/lib/matplotlib/text.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/text.py 2010-01-29 17:33:34 UTC (rev
8104)
+++ trunk/matplotlib/lib/matplotlib/text.py 2010-01-29 18:03:13 UTC (rev
8105)
@@ -1537,7 +1537,7 @@
return True
- def draggable(self, state=None):
+ def draggable(self, state=None, use_blit=False):
"""
Set the draggable state -- if state is
@@ -1560,7 +1560,7 @@
if state:
if self._draggable is None:
- self._draggable = DraggableAnnotation(self)
+ self._draggable = DraggableAnnotation(self, use_blit)
else:
if self._draggable is not None:
self._draggable.disconnect()
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