CustomViewTextFieldandFocusRingCode

#import “KeyView.h”

@implementation KeyView

(id)initWithFrame:(NSRect)frameRect { [super initWithFrame:frameRect]; return self; }

-(void)dealloc { [nonVisibleDict release]; [self release]; }

-(void)awakeFromNib {

NSArray *keys=[NSArray arrayWithObjects:@"76",@"36",@"122",@"120",@"99",@"118", @"96",@"97",@"98",@"100",@"101",@"109",@"103",@"111", @"124",@"123",@"125",@"126",@"51",@"53",@"49",@"48",nil];
    NSArray *objects=[NSArray arrayWithObjects:@"Enter",@"Return",@"F1",@"F2",@"F3" ,@"F4",@"F5",@"F6",@"F7",@"F8", @"F9",@"F10",@"F11",@"F12",@"Right Arrow",@"Left Arrow",@"Down Arrow", @"Up Arrow",@"Delete",@"Escape",@"Space",@"Tab",nil];
    
    nonVisibleDict=[[[NSDictionary alloc] initWithObjects:objects forKeys:keys] retain]; }

(BOOL) becomeFirstResponder { isSelected=YES; [self setNeedsDisplay:YES]; return YES;

}

(BOOL)resignFirstResponder { isSelected=NO; [self setNeedsDisplay:YES]; return YES; }

(void)drawRect:(NSRect)rect {

  NSBezierPath *myPath=[NSBezierPath bezierPathWithRect:rect];
  [[NSColor whiteColor] set];
  [myPath fill];

 if ([viewString isEqualToString:@""] !=YES) {
      [[NSColor blackColor] set];
      [viewString drawAtPoint:NSMakePoint(7,NSMidY(rect)-8) withAttributes:nil];
  }	

  if (isSelected==YES && [myWindow isKeyWindow]) {
      NSSetFocusRingStyle(NSFocusRingOnly); 
      NSRectFill(rect);
      [self setKeyboardFocusRingNeedsDisplayInRect: rect];
  } else {
      myPath=[NSBezierPath bezierPathWithRect:rect];
      [[NSColor grayColor] set];
      [myPath stroke]; 
  }

}

(BOOL)acceptsFirstResponder { return YES; }
(void)mouseDown:(NSEvent *)theEvent { isSelected=YES; [self setNeedsDisplay:YES]; }

(void)keyDown:(NSEvent *)theEvent { if (isSelected=YES) { unichar myKeystroke = [[[NSApp currentEvent] charactersIgnoringModifiers] characterAtIndex:0]; myKeyCode = [[NSApp currentEvent] keyCode];

  [viewString release];
    
  if ([nonVisibleDict objectForKey:[[NSNumber numberWithInt:myKeyCode] stringValue]] != nil) {
      viewString=[[NSString stringWithString: [nonVisibleDict objectForKey:[[NSNumber numberWithInt:myKeyCode] stringValue]]] retain];
  } else {
      viewString=[[NSString stringWithFormat:@"%C",myKeystroke] retain];
  }
  
    
  [self setNeedsDisplay:YES];     }

}

@end

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