CODEWITHSUNDEEP
macoscocoanstableview
C. S. Hammersmith
C. S. Hammersmith

Reputation: 488

Getting notified when an encapsulating NSTableView cell is selected?

When a stock NSTableView's row/cell is selected, its background becomes blue and any standard NSTextfields text color becomes white.

Is there a public API that lets you to get a message when an encapsulating row view or cell view is selected? Basically, I want to make a custom view that changes colors when the row/cell is selected.

Upvotes: 1

Views: 104

Answers (2)

Ken Thomases
Ken Thomases

Reputation: 90551

Table cells don't get selected, table rows do. NSTableRowView has a selected property.

I think you should just rely on your view being asked to draw (i.e. being marked as needing display) when the row changes whether or not it's selected. It can then query the properties of its enclosing row view to decide how it should draw.

That said, you shouldn't necessarily use the selected property of the row to decide how to draw. Rather, you often should use the interiorBackgroundStyle of the row. Or, if you're using NSTableCellView for your cell view, check its backgroundStyle. In many case, you won't have to check; the cell view will forward the setting of backgroundStyle to its subviews, if they support that.

Upvotes: 1

Sheen Vempeny
Sheen Vempeny

Reputation: 826

You can make use of NSTableViewDelegate . You can use tableViewSelectionDidChange for that. Please refer this https://developer.apple.com/library/mac/documentation/Cocoa/Reference/NSTableViewDelegate_Protocol/#//apple_ref/occ/intfm/NSTableViewDelegate/tableViewSelectionDidChange: .

Upvotes: 1

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