NSButtonCells in Custom View

FROM : Michael Becker
DATE : Tue Oct 12 18:07:07 2004

Hi!

I want to draw a matrix of buttons in a custom view that need to
re-organise whenever the view's size changes. I've taken the advice to
use NSButtonCells instead of NSButtons. However, these NSButtonCells
don't do anything. They're displayed, I connected their targets and
actions but they don't respond to mouse clicks in whatsoever way.

I tried the same thing with NSButtons, by adding them as subviews to my
custom view and on each drawRect: I checked the view's size and
re-organised the subviews' frame rects. The target/action/highlighting
worked wonderfully. But using NSButtons produced a strange behavior of
the buttons as they would "lag behind" on a resize (I blame that on the
subview-principle, somehow...)

Code snippet #1: Adding another button...

   NSButtonCell *button = [[ NSButtonCell alloc] init];
   [ button setButtonType:NSMomentaryLightButton];
   [ button setBordered:YES];
   [ button setBezelStyle:NSRegularSquareBezelStyle];
   [ button setTarget:_pvButtonTarget];
   [ button setAction:_pvButtonAction];
   
   [ buttons addObject:button];
   [ button release];

Code snippet #2: part of the drawRect method:

   for (i=0; i<[ buttons count]; i++) {
       [[ buttons objectAtIndex:i]
drawWithFrame:NSMakeRect(x,y,BUTTON_WIDTH,BUTTON_HEIGHT) inView:self];
       x += BUTTON_CELL_WIDTH;
       if (x+BUTTON_CELL_WIDTH >= mySize.width) {
           x = 0;
           y += BUTTON_CELL_HEIGHT;
       }
   }

So what do I have to do to get the NSButtonCells to work?

Cheers,
Michael