I have a NSTextField in a view where layout is totally controlled by constraints and translatesAutoresizingMaskIntoConstraints is NO. I tried to use setStringValue to change the content like this:
[[self textfield] setStringValue:@"1\n2\n3\n"];
Then the height is changed to 4 lines which is not what I want. I need a NSTextField that can show only one line but still I can use up and down arrow keys to go into different lines. It is just like use option+enter to insert a newline in NSTextField.
I also tried to keep the height:
NSRect originalFrame = [[self textfield] frame];
[[self textfield] setStringValue:@"1\n2\n3\n"];
NSRect newFrame = [[self textfield] frame];
newFrame.size.height = originalFrame.size.height;
[[self textfield] setFrame:newFrame];
It doesn't work. I checked intrinsicContentSize and it returns (width=-1, height=73). Is there anything I can set to NSTextField so the height is of only one line like 22?