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Auto-expanding a MultilineTextEdit
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Joe Betz
Feb 22, 2022, 4:51:16 PM2/22/22
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How do you configure a MultilineTextEdit to increase in height whenever text wraps to a new line or a newline gets added (i.e., by pressing enter)?
Context: The MultilineTextEdit is inside a ContainerView using ProportionalLayout with arrangement set to 0. I tried enabling `usePreferredExtent`, recalculating the extent with every key typed, and then updating it using `preferredExtent:`, but the edit field remains the same size.
I have a strong feeling that it's an issue with the layouts but I can't figure out a better way to arrange things to get the behavior I want.
Context: The MultilineTextEdit is inside a ContainerView using ProportionalLayout with arrangement set to 0. I tried enabling `usePreferredExtent`, recalculating the extent with every key typed, and then updating it using `preferredExtent:`, but the edit field remains the same size.
I have a strong feeling that it's an issue with the layouts but I can't figure out a better way to arrange things to get the behavior I want.
Joe Betz
Feb 26, 2022, 2:13:15 AM2/26/22
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<sigh> There was an extra ContainerView that was screwing things up, inbetween the input field and the view where the layout was correctly defined. Got rid of that and `preferredExtent:` is now working as expected.
onKeyTyped: aKeyEvent on: aTextInput
| newExtent |
newExtent := aTextInput calculateExtent: (LayoutContext forContainer: self).
(newExtent y < 250) ifTrue: [ aTextInput preferredExtent: newExtent ]
onKeyTyped: aKeyEvent on: aTextInput
| newExtent |
newExtent := aTextInput calculateExtent: (LayoutContext forContainer: self).
(newExtent y < 250) ifTrue: [ aTextInput preferredExtent: newExtent ]
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