turn setColumnCount no-op when the column count doesn't change

Authored by sitter on Jul 18 2017, 9:34 AM.

Description

turn setColumnCount no-op when the column count doesn't change

Prevents excess layout update checks.

As discussed in D6624

Details

Committed
sitterJul 18 2017, 9:34 AM
Parents
R236:ca40063c4e49: do not crash qaccessible by causing a resize in a resize event
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