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Widget and animation improvements #3985

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Merged
merged 2 commits into from
Mar 13, 2015
Merged

Widget and animation improvements #3985

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a5fccbc
Turn off blitting and improve RadioButton
WeatherGod Oct 2, 2014
e012f78
Added a set_active() for CheckButtons
WeatherGod Oct 25, 2014
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Turn off blitting and improve RadioButton
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@WeatherGod
WeatherGod committed Jan 8, 2015
commit a5fccbc7bf02c20401e405cb9a8eeec7c7afd47c
4 changes: 2 additions & 2 deletions 4 examples/animation/animate_decay.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ def data_gen(t=0):
cnt = 0
while cnt < 1000:
cnt += 1
t += 0.05
t += 0.1
yield t, np.sin(2*np.pi*t) * np.exp(-t/10.)

fig, ax = plt.subplots()
Expand All @@ -32,6 +32,6 @@ def run(data):

return line,

ani = animation.FuncAnimation(fig, run, data_gen, blit=True, interval=10,
ani = animation.FuncAnimation(fig, run, data_gen, blit=False, interval=10,
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why turn off blitting?

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As the animation goes on, the limits keep changing. When blitting is turned
on, you don't see the x-axis change, which is incorrect. Turn blitting off,
and you see the scale change correctly.

On Thu, Jan 8, 2015 at 10:12 PM, Thomas A Caswell notifications@github.com
wrote:

In examples/animation/animate_decay.py
#3985 (diff)
:

@@ -32,6 +32,6 @@ def run(data):

 return line,

-ani = animation.FuncAnimation(fig, run, data_gen, blit=True, interval=10,
+ani = animation.FuncAnimation(fig, run, data_gen, blit=False, interval=10,

why turn of

—
Reply to this email directly or view it on GitHub
https://github.com/matplotlib/matplotlib/pull/3985/files#r22699612.

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ah, ok. If you move the mouse in and out it triggers a full re-draw (at least on qt) which updates them so I thought it was always updating correctly.

There probably should be some logic someplace in the animation that if any has change to do a full-redraw.

This actually ties back into what @efiring and I were talking about to make pyplot behave better as well as it wouldn't be too hard to co-op that system to allow non-animated artists to make the axes as 'dirty' which would trigger a full-redraw.

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Wouldn't need to do that. The animation module already attaches a reset of
the blit to frame resizes, we just never attached it to other kinds of
changes.

I don't know why it doesn't make a difference for you though. A full redraw
isn't sufficient. The bbox copy has to be reset.
On Jan 8, 2015 10:32 PM, "Thomas A Caswell" notifications@github.com
wrote:

In examples/animation/animate_decay.py
#3985 (diff)
:

@@ -32,6 +32,6 @@ def run(data):

 return line,

-ani = animation.FuncAnimation(fig, run, data_gen, blit=True, interval=10,
+ani = animation.FuncAnimation(fig, run, data_gen, blit=False, interval=10,

ah, ok. If you move the mouse in and out it triggers a full re-draw (at
least on qt) which updates them so I thought it was always updating
correctly.

There probably should be some logic someplace in the animation that if any
has change to do a full-redraw.

This actually ties back into what @efiring https://github.com/efiring
and I were talking about to make pyplot behave better as well as it
wouldn't be too hard to co-op that system to allow non-animated artists to
make the axes as 'dirty' which would trigger a full-redraw.

—
Reply to this email directly or view it on GitHub
https://github.com/matplotlib/matplotlib/pull/3985/files#r22700042.

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I thought that the animation code added hooks so that on a redraw event it takes care of re-copying the blit box not to resizes spcefically.

What is going on on my system (I think) is that when you mouse in/out qt triggers a full re-paint (as there may have been silly alpha stuff going on when the window was non-focused (oh, right I also use focus follow mouse so I am really changing the focus state) ) and that repaint from the windowing system bubbles down and does a full re-draw of the canvas which updates the tick labels.

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That might be the case. It was a long time ago that Ryan and I worked on
that part. If that is the case, then a focus-follows-mouse setup would
trigger a redraw and thus reset the blit. In any case, let's focus on the
other questions for this PR: 1) should we use indexes or string labels and
2) should the check button's set_active() allow for explicit setting of the
state rather than strictly toggling?

On Thu, Jan 8, 2015 at 11:11 PM, Thomas A Caswell notifications@github.com
wrote:

In examples/animation/animate_decay.py
#3985 (diff)
:

@@ -32,6 +32,6 @@ def run(data):

 return line,

-ani = animation.FuncAnimation(fig, run, data_gen, blit=True, interval=10,
+ani = animation.FuncAnimation(fig, run, data_gen, blit=False, interval=10,

I thought that the animation code added hooks so that on a redraw event it
takes care of re-copying the blit box not to resizes spcefically.

What is going on on my system (I think) is that when you mouse in/out qt
triggers a full re-paint (as there may have been silly alpha stuff going on
when the window was non-focused (oh, right I also use focus follow mouse so
I am really changing the focus state) ) and that repaint from the windowing
system bubbles down and does a full re-draw of the canvas which updates the
tick labels.

—
Reply to this email directly or view it on GitHub
https://github.com/matplotlib/matplotlib/pull/3985/files#r22700791.

repeat=False)
plt.show()
27 changes: 20 additions & 7 deletions 27 lib/matplotlib/widgets.py
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Original file line number Diff line number Diff line change
Expand Up @@ -698,17 +698,30 @@ def inside(p):
pcirc = np.array([p.center[0], p.center[1]])
return dist(pclicked, pcirc) < p.radius

for p, t in zip(self.circles, self.labels):
for i, (p, t) in enumerate(zip(self.circles, self.labels)):
if t.get_window_extent().contains(event.x, event.y) or inside(p):
inp = p
thist = t
self.value_selected = t.get_text()
index_match = i
break
else:
return

for p in self.circles:
if p == inp:
self.set_active(index_match)

def set_active(self, index):
"""
Trigger which radio button to make active.

*index* is an index into the original label list
that this object was constructed with.

"""
if 0 > index >= len(self.labels):
raise ValueError("Invalid RadioButton index: %d" % index)

self.value_selected = self.labels[index].get_text()

for i, p in enumerate(self.circles):
if i == index:
color = self.activecolor
else:
color = self.ax.get_axis_bgcolor()
Expand All @@ -720,7 +733,7 @@ def inside(p):
if not self.eventson:
return
for cid, func in six.iteritems(self.observers):
func(thist.get_text())
func(self.labels[index].get_text())

def on_clicked(self, func):
"""
Expand Down
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