OSX: Programmatically added subviews not responding to mouse down events
- by BigCola
I have 3 subclasses: a Block class, a Row class and a Table class. All are subclasses of NSView. I have a Table added with IB which programmatically displays 8 rows, each of which displays 8 blocks. I overrode the mouseDown: method in Block to change the background color to red, but it doesn't work. Still if I add a block directly on top of the Table with IB it does work so I can't understand why it won't work in the first case.
Here's the implementation code for Block and Row (Table's implementation works the same way as Row's):
//block.m
- (void)drawRect:(NSRect)dirtyRect
{
[color set];
[NSBezierPath fillRect:dirtyRect];
}
-(void)mouseDown:(NSEvent *)theEvent
{
color = [NSColor redColor];
checked = YES;
[self setNeedsDisplay:YES];
}
//row.m
- (void)drawRect:(NSRect)dirtyRect
{
[[NSColor blueColor] set];
[NSBezierPath fillRect:dirtyRect];
int x;
for(x=0; x<8; x++){
int margin = x*2;
NSRect rect = NSMakeRect(0, 50*x+margin, 50, 50);
Block *block = [[Block alloc] initWithFrame:rect];
[self addSubview:block];
}
}
