ENH : add function to add displayhook #4091
Commits on May 25, 2015
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ENH : add function to add displayhook for IPython
- add `draw_all` function to pyplot - add `install_ipython_repl_hook` to pyplot which when run monkey-patches the ipython DisplayHook to call draw_all when ever the repl comes back.
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ENH : greatly simplified last commit
- renamed to `install_repl_displayhook` - should work with all shells?
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ENH : special case IPython display hook
Something funny goes on with the zeromq based kernels and we aren't modifying the namespace we think we are modifying.
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ENH : hook into IPython better
Follow advice from @minrk and use existing IPython pluggable machinery rather than terrifying monkey-patching.
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First pass at adding awareness of 'dirty' state to the draw tree. Changing properties of an artist (as indicated by a call to `self.pchanged()`) will make that artists axes and figure as 'dirty'. The state of the figure is queried by the `Gcf.draw_all` to only re-draw figure that are dirty. This is a major performance gain for expensive to draw figures. This is also (maybe) setting the stage for partial re-draws.
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ENH : add force logic to draw_all
Add kwarg to Gcf.draw_all to force redraw of all figures (even if the figure does not think it needs it).
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ENH : first pass at making Line2D objects dirty-aware
All set_* commands now set dirty to be True if the value is changed. This required pre-defining all of the Line2D private attributes in the `__init__` method so that all of the `set_*` methods work the first time through.
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FIX : use canonical linestyles kwarg in contour
LineCollections can have their line style set either via the explicit `linestyles` kwarg or via the imlicit `linestyle' which is set via `Artist` level `set_*` magic.
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MNT : remove unneeded call to set_linestyles
This function is called as part of the `Collection.__init__` call so does not need to be re-called. This also fixes an issue with the default value of 'linestyles` (solid) taking precedence over a passed in `linestyle` kwarg.
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MNT : remove stale flags from Axes.draw
The first pass at getting this to work put all of the logic to label artists as not stale in the Axes.draw method. Now that all of the draw methods are marked up this is not needed.
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MNT : use draw_idle not draw in Gcf.draw_all
`draw_idle` has a better chance of not stepping on it's own toes and re-drawing multiple times in quick secession. I think this will also play nicer with the OSX backend?
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ENH : add stale flag to Axes.cla
Set stale after clearing (just to be safe)
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MNT : add guards to only register repl hook once
Multiple calls to install_repl_displayhook are effectively no-ops.
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FIX : order of operation is Poly3DCollection init
Make sure parent class is `__init__`'d before trying to use a function that requires _stale attribute.
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ENH : integrate repl hook with is_interactive
- add calls to {un}install in plt.i{on, off} - registered functions consult `mpl.is_interactive` before triggering draws -
FIX : logic for IPython hook registration
Only set the global _IP_REGISTERED if the registration succeeds, with the finally block it would be set if _both_ failed.
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MNT : hackily make boilerplate PY3 compatable
Hide the python2 only code in a conditional
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MNT : remove draw_if_interactive from boilerplate
With the repl callback the pyplot function do not need to call `draw_if_interactive`.
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MNT : remove non-boilerplate
draw_if_interactiveThere is still one `draw_if_interactive` left in the `rcdefaults` call as the current scheme does not track when rcparams change.
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