Commitc9ce08d

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Merge pull request#25082 from meeseeksmachine/auto-backport-of-pr-25079-on-v3.7.x

Backport PR#25079 on branch v3.7.x (FIX: Only send one update signal when autoscaling norms)

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+11

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Lines changed: 6 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -1372,8 +1372,12 @@ def inverse(self, value):`
`1372`	`1372`
`1373`	`1373`	`defautoscale(self,A):`
`1374`	`1374`	`"""Set vmin, vmax to min, max of A."""`
`1375`		`-self.vmin=self.vmax=None`
`1376`		`-self.autoscale_None(A)`
	`1375`	`+withself.callbacks.blocked():`
	`1376`	`+# Pause callbacks while we are updating so we only get`
	`1377`	`+# a single update signal at the end`
	`1378`	`+self.vmin=self.vmax=None`
	`1379`	`+self.autoscale_None(A)`
	`1380`	`+self._changed()`
`1377`	`1381`
`1378`	`1382`	`defautoscale_None(self,A):`
`1379`	`1383`	`"""If vmin or vmax are not set, use the min/max of A to set them."""`

Lines changed: 5 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -1493,6 +1493,11 @@ def test_norm_callback():`
`1493`	`1493`	`norm.vmax=5`
`1494`	`1494`	`assertincrement.call_count==2`
`1495`	`1495`
	`1496`	`+# We only want autoscale() calls to send out one update signal`
	`1497`	`+increment.call_count=0`
	`1498`	`+norm.autoscale([0,1,2])`
	`1499`	`+assertincrement.call_count==1`
	`1500`	`+`
`1496`	`1501`
`1497`	`1502`	`deftest_scalarmappable_norm_update():`
`1498`	`1503`	`norm=mcolors.Normalize()`

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