Widget and animation improvements

[WeatherGod]

Add a method to RadioButtons and CheckButtons. Also fixed an animation example that needed its blitting turned off in order to show the changes in the x limits over time. Rescaled it to adjust for the performance penalty.

Probably the one questionable thing will be the use of index numbers for the set_active() methods. I decided on using index number for RadioButtons because that is what is used in the constructor for starting out. And I used index numbers for the CheckButtons' set_active() just for consistency. I would be open to turning the CheckButtons' set_active() from a strictly toggle method into an optional setter (so, have a state=None, which would toggle, while a state=True would turn it on and state=False would turn it off).

[tacaswell]

why turn off blitting?

[WeatherGod]

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

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

[tacaswell]

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.

[WeatherGod]

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.

[tacaswell]

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.

[WeatherGod]

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.