Classes/NJInputButton.m

   1 //
   2 //  NJInputButton.m
   3 //  Enjoy
   4 //
   5 //  Created by Sam McCall on 5/05/09.
   6 //
   7
   8 #import "NJInputButton.h"
   9
  10 @implementation NJInputButton {
  11     CFIndex _max;
  12 }
  13
  14 - (id)initWithElement:(IOHIDElementRef)element
  15                 index:(int)index
  16                parent:(NJInputPathElement *)parent
  17 {
  18     if ((self = [super initWithName:NJINPUT_NAME(NSLocalizedString(@"button %d", @"button name"), index)
  19                                 eid:NJINPUT_EID("Button", index)
  20                             element:element
  21                              parent:parent])) {
  22         _max = IOHIDElementGetLogicalMax(element);
  23     }
  24     return self;
  25 }
  26
  27 - (id)findSubInputForValue:(IOHIDValueRef)val {
  28     return (IOHIDValueGetIntegerValue(val) == _max) ? self : nil;
  29 }
  30
  31 - (void)notifyEvent:(IOHIDValueRef)value {
  32     self.active = IOHIDValueGetIntegerValue(value) == _max;
  33     self.magnitude = IOHIDValueGetIntegerValue(value) / (float)_max;
  34 }
  35
  36 @end