Live slider updating (gtk help)

  draw_idle still seems to suffer from the "trying to

    > catch up" problem. I added the
    > gdk.POINTER_MOTION_HINT_MASK to enable passive mouse
    > motion event handling. The gtk interface does not lag
    > behind with this enabled, even with complex figures.
    > Does this break functionality you are expecting somewhere
    > else? Now the gtk backend acts the same as wx and tk
    > with respect to mouse motion. Here is the reference I
    > found for addressing this problem:
    > http://www.pygtk.org/pygtk2tutorial/sec-EventHandling.html#id3096656

On my system, the performance is acceptable with this somewhat
pathological test case

from pylab import *

for i in range(1,7):
    subplot(3,2,i)
    imshow(rand(1000,1000), interpolation='bicubic')
show()

So I'm happy to keep it.

Nice work. Steve Chaplin, btw, is the resident gtk expert, so he may
weigh in on the gtk strategy...

JDH

I think the slider should update with the display if the dragging is
enabled, so the slider value stays in sync. The typical user will
understand that things will be a little sliggish when plotting insane
data such as you example.
  I am wanting to create a simple text/value entry field, but I noticed
that the backends don't support the delete key in events. Are there
issues across platforms with this? If not, I will probably add this.

- Charlie

John Hunter wrote:

···

"Charles" == Charles Moad <cmoad@...209...> writes:

    > draw_idle still seems to suffer from the "trying to
    > catch up" problem. I added the
    > gdk.POINTER_MOTION_HINT_MASK to enable passive mouse
    > motion event handling. The gtk interface does not lag
    > behind with this enabled, even with complex figures.
    > Does this break functionality you are expecting somewhere
    > else? Now the gtk backend acts the same as wx and tk
    > with respect to mouse motion. Here is the reference I
    > found for addressing this problem:
    > http://www.pygtk.org/pygtk2tutorial/sec-EventHandling.html#id3096656

On my system, the performance is acceptable with this somewhat
pathological test case

from pylab import *

for i in range(1,7):
    subplot(3,2,i)
    imshow(rand(1000,1000), interpolation='bicubic')
show()

So I'm happy to keep it.

Nice work. Steve Chaplin, btw, is the resident gtk expert, so he may
weigh in on the gtk strategy...

JDH