#import "TrackingCell.h" @implementation TrackingCell - (BOOL)startTrackingAt:(NSPoint)startPoint inView:(NSView *)controlView { tracking = YES; return [super startTrackingAt:startPoint inView:controlView]; } - (BOOL)continueTracking:(NSPoint)lastPoint at:(NSPoint)currentPoint inView:(NSView *)controlView { NSEvent *event = [NSEvent mouseEventWithType:NSEventTypeLeftMouseDragged location:currentPoint modifierFlags:0 timestamp:0 windowNumber:[[controlView window] windowNumber] context:nil eventNumber:0 clickCount:0 pressure:0]; [controlView mouseDragged:event]; return [super continueTracking:lastPoint at:currentPoint inView:controlView]; } - (void)stopTracking:(NSPoint)lastPoint at:(NSPoint)stopPoint inView:(NSView *)controlView mouseIsUp:(BOOL)flag { tracking = NO; [super stopTracking:lastPoint at:stopPoint inView:controlView mouseIsUp:flag]; } - (BOOL)isTracking { return tracking; } @end