Hi, Continuing the spurt of (independent) development that's been going on lately, I committed support for generic timers. There's a base class TimerBase that provides the basic API for a timer (start, stop, controlling the interval, adding callbacks, etc.), and each GUI backend subclasses this to wrap around their toolkit's native timer classes. I added a method to each backend's canvas object to facilitate creating a backend-specific timer without having to know what backend was running. So far, I'm quite happy with how it turned out, but I'm curious to hear feedback. Specifically:
1) Anything missing in the basic TimerBase API? 2) Is adding new_timer() the canvas a good way to go? I needed a way to get to backend-specific classes without actually knowing what backend I'm running (and without calling _pylab_helpers or pyplot.get_backend()). Figure.canvas seemed to be just about the only way to go about this. It also makes some sense, because in the case of Wx and Tk, an actual widget is required to hook up the timer. I've added an example in: examples/event_handling/timers.py This just makes a plot with a title that is continually (100 ms) updating with the current time including milliseconds. It does a good job of showing the ease with which such interactive updates can be done now. In fact, this could probably be used to update and simplify the existing animation demos. However, I'm already finishing up a more complete animation framework based on this, which should simplify some of those even further. At that point, I'll probably update the examples. I still need to add some documentation to the event handling section of the User's Guide, though this might better belong with a section on animation's that I promise to write once the new framework is checked in. Also, I didn't add a TimerBase implementation for the CocoaAgg backend. I have no idea about that toolkit, so I'd appreciate some help there so we can have an implementation for all of the active GUI toolkits. Any feedback is appreciated. Ryan -- Ryan May Graduate Research Assistant School of Meteorology University of Oklahoma ------------------------------------------------------------------------------ _______________________________________________ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
