Changing NSTextFieldCell background color on selection

Question

I'm trying to change the background color of a NSTextFieldCell when the cell is selected.

This is the code:

- (void)drawWithFrame:(NSRect)cellFrame inView:(NSView *)controlView {

    [super drawWithFrame:cellFrame inView:controlView];

    if([self isHighlighted]) {
        [self setBackgroundColor:[NSColor whiteColor]]; 
    }   
}

But the selected row is always blue. I am missing something?

Note: this is not an iOS application.

Thanks you in advance.

Answer 1

This is not easy as i think before: NStableview have some problem there. If u using something like:

[destinationsListForSaleTableView setSelectionHighlightStyle:NSTableViewSelectionHighlightStyleNone];

You have to do

 - (void)tableView:(NSTableView *)aTableView willDisplayCell:(id)aCell forTableColumn:(NSTableColumn *)aTableColumn row:(NSInteger)rowIndex
{
 if ([[aTableView selectedRowIndexes] containsIndex:rowIndex]) {
    [aCell setBackgroundColor: [NSColor colorWithDeviceRed:0.29 green:0.27 blue:0.42 alpha:1]];

} else [aCell setBackgroundColor: [NSColor colorWithDeviceRed:0.52 green:0.54 blue:0.70 alpha:1]];
[aCell setDrawsBackground:YES];

}  

This is enough if u cell is not custom. If u change height and interior, it have to be more complicated:

keep selection style table for you choice. In cell subclass:

-(NSColor *)highlightColorWithFrame:(NSRect)cellFrame inView:(NSView *)controlView {
return nil;
//[NSColor colorWithDeviceRed:0.29 green:0.27 blue:0.42 alpha:1];
}

 - (void)drawWithFrame:(NSRect)cellFrame inView:(NSView *)controlView
{
if ([self isHighlighted]) {
    [[NSColor colorWithDeviceRed:0.29 green:0.27 blue:0.42 alpha:1] set];
    cellFrame.origin.x -= 1;
    cellFrame.origin.y -= 1;
    cellFrame.size.height += 2;
    cellFrame.size.width += 3;

    NSRectFill(cellFrame);

}
[super drawWithFrame:cellFrame inView:controlView];
}

You ask me why i change size of filling? Bcs when u using background, apple leave a small box, which will have different color.