Commit3301248

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Merge pull request#23476 from tacaswell/fix/unpickle_dpi

FIX: reset to original DPI in getstate

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Lines changed: 3 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -3023,6 +3023,9 @@ def __getstate__(self):`
`3023`	`3023`	`# Set cached renderer to None -- it can't be pickled.`
`3024`	`3024`	`state["_cachedRenderer"]=None`
`3025`	`3025`
	`3026`	`+# discard any changes to the dpi due to pixel ratio changes`
	`3027`	`+state["_dpi"]=state.get('_original_dpi',state['_dpi'])`
	`3028`	`+`
`3026`	`3029`	`# add version information to the state`
`3027`	`3030`	`state['__mpl_version__']=mpl.__version__`
`3028`	`3031`

Lines changed: 9 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -2,6 +2,7 @@`
`2`	`2`	`fromdatetimeimportdatetime`
`3`	`3`	`importio`
`4`	`4`	`frompathlibimportPath`
	`5`	`+importpickle`
`5`	`6`	`importplatform`
`6`	`7`	`fromthreadingimportTimer`
`7`	`8`	`fromtypesimportSimpleNamespace`
`@@ -1380,3 +1381,11 @@ def test_deepcopy():`
`1380`	`1381`
`1381`	`1382`	`assertax.get_xlim()== (1e-1,1e2)`
`1382`	`1383`	`assertfig2.axes[0].get_xlim()== (0,1)`
	`1384`	`+`
	`1385`	`+`
	`1386`	`+deftest_unpickle_with_device_pixel_ratio():`
	`1387`	`+fig=Figure(dpi=42)`
	`1388`	`+fig.canvas._set_device_pixel_ratio(7)`
	`1389`	`+assertfig.dpi==42*7`
	`1390`	`+fig2=pickle.loads(pickle.dumps(fig))`
	`1391`	`+assertfig2.dpi==42`

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