RemoteFeedbackView.m

//
//  RemoteFeedbackView.m
//  RemoteControlWrapper
//
//  Created by Martin Kahr on 16.03.06.
//  Copyright 2006-2014 martinkahr.com. All rights reserved.
//

#import "RemoteFeedbackView.h"
#import "AppleRemote.h"

@implementation RemoteFeedbackView

// Designated initializer
- (instancetype)initWithFrame:(NSRect)frameRect
{
	if ((self = [super initWithFrame:frameRect]) != nil) {
		_remoteImage = [NSImage imageNamed:@"AppleRemote"];
#if _isMRR
		[_remoteImage retain];
#endif
		_lastButtonIdentifier = kRemoteButtonInvalid;
	}
	return self;
}

#if _isMRR
- (void) dealloc {
	[_remoteImage release];
	[super dealloc];
}
#endif

- (void) clearAfterRedraw: (id) sender {
	(void)sender;
	_lastButtonIdentifier = kRemoteButtonInvalid;
	[self setNeedsDisplay:YES];
}

- (void) remoteButton: (RemoteControlEventIdentifier)buttonIdentifier pressedDown: (BOOL) pressedDown clickCount: (unsigned int)clickCount {
	(void)clickCount;
	if (pressedDown) {
		_lastButtonIdentifier = buttonIdentifier;
	} else {
		if (_drawn) {
			_lastButtonIdentifier = kRemoteButtonInvalid;
		} else {
			_lastButtonIdentifier = buttonIdentifier;
			[self performSelector:@selector(clearAfterRedraw:) withObject:self afterDelay:0.1];
		}
	}
	
	_drawn = NO;
	[self setNeedsDisplay:YES];
}

- (void)drawRect:(NSRect)rect {
	(void)rect;
	_drawn = YES;
	NSRect imageRect;
	NSRect drawingRect;
	imageRect.origin = NSZeroPoint;
	imageRect.size   = [_remoteImage size];
	
	CGFloat x = round(([self bounds].size.width  - [_remoteImage size].width)/2.0);
	CGFloat y = round(([self bounds].size.height - [_remoteImage size].height)/2.0);
	
	drawingRect.origin = NSMakePoint(x, y);
	drawingRect.size   = imageRect.size;
	
	[_remoteImage drawInRect: drawingRect
					fromRect: imageRect
#if MAC_OS_X_VERSION_MAX_ALLOWED >= 101200
				   operation: NSCompositingOperationSourceOver
#else
				   operation: NSCompositeSourceOver
#endif
					fraction: 1.0];
	
	if (_lastButtonIdentifier == kRemoteButtonInvalid) {
		return;
	}
	
	RemoteControlEventIdentifier buttonToSelect = _lastButtonIdentifier;
	
	NSPoint buttonPos;
	CGFloat opacity = 0.5;
	
	switch(buttonToSelect) {
		case kRemoteButtonPlus_Hold:
			opacity = 0.8;
			buttonPos.x = 53;
			buttonPos.y = 240;
			break;
		case kRemoteButtonPlus:
			buttonPos.x = 53;
			buttonPos.y = 240;
			break;
		case kRemoteButtonMinus_Hold:
			opacity = 0.8;
			buttonPos.x = 53;
			buttonPos.y = 180;
			break;
		case kRemoteButtonMinus:
			buttonPos.x = 53;
			buttonPos.y = 180;
			break;
		case kRemoteButtonMenu_Hold:
			opacity = 0.8;
			buttonPos.x = 53;
			buttonPos.y = 137;
			break;
		case kRemoteButtonMenu:
			buttonPos.x = 53;
			buttonPos.y = 137;
			break;
		case kRemoteButtonPlay_Hold:
			buttonPos.x = 53;
			buttonPos.y = 210;
			opacity = 0.8;
			break;
		case kRemoteButtonPlay:
			buttonPos.x = 53;
			buttonPos.y = 210;
			break;
		case kRemoteButtonRight_Hold:
			opacity = 0.8;
			buttonPos.x = 83;
			buttonPos.y = 210;
			break;
		case kRemoteButtonRight:
			buttonPos.x = 83;
			buttonPos.y = 210;
			break;
		case kRemoteButtonLeft_Hold:
			opacity = 0.8;
			buttonPos.x = 23;
			buttonPos.y = 210;
			break;
		case kRemoteButtonLeft:
			buttonPos.x = 23;
			buttonPos.y = 210;
			break;
		default:
			return;
			break;
	}
	
	CGFloat width = 20.0;
	CGFloat height= 20.0;
    NSRect r = NSMakeRect(buttonPos.x + x - (width/2.0), buttonPos.y + y - (height/2.0), width, height);
    NSBezierPath* bp = [NSBezierPath bezierPathWithOvalInRect:r];
	
	[[NSColor colorWithCalibratedRed:1.0 green:0.0 blue:0.0 alpha:opacity] set];
    [bp fill];
}

@end