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+/*
+ * cocos2d for iPhone: http://www.cocos2d-iphone.org
+ *
+ * Copyright (c) 2010 Ricardo Quesada
+ * Copyright (c) 2011 Zynga Inc.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/*
+ * Idea of subclassing NSOpenGLView was taken from  "TextureUpload" Apple's sample
+ */
+
+// Only compile this code on Mac. These files should not be included on your iOS project.
+// But in case they are included, it won't be compiled.
+#import <Availability.h>
+#ifdef __IPHONE_OS_VERSION_MAX_ALLOWED
+#elif defined(__MAC_OS_X_VERSION_MAX_ALLOWED)
+
+#import "MacGLView.h"
+#import <OpenGL/gl.h>
+
+#import "CCDirectorMac.h"
+#import "../../ccConfig.h"
+
+
+@implementation MacGLView
+
+@synthesize eventDelegate = eventDelegate_;
+
++(void) load_
+{
+        NSLog(@"%@ loaded", self);
+}
+
+- (id) initWithFrame:(NSRect)frameRect
+{
+        self = [self initWithFrame:frameRect shareContext:nil];
+        return self;
+}
+
+- (id) initWithFrame:(NSRect)frameRect shareContext:(NSOpenGLContext*)context
+{
+    NSOpenGLPixelFormatAttribute attribs[] =
+    {
+                NSOpenGLPFAAccelerated,
+                NSOpenGLPFANoRecovery,
+                NSOpenGLPFADoubleBuffer,
+                NSOpenGLPFADepthSize, 24,
+                
+                0
+    };
+        
+        NSOpenGLPixelFormat *pixelFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:attribs];
+        
+        if (!pixelFormat)
+                NSLog(@"No OpenGL pixel format");
+        
+        if( (self = [super initWithFrame:frameRect pixelFormat:[pixelFormat autorelease]]) ) {
+                
+                if( context )
+                        [self setOpenGLContext:context];
+
+                // Synchronize buffer swaps with vertical refresh rate
+                GLint swapInt = 1;
+                [[self openGLContext] setValues:&swapInt forParameter:NSOpenGLCPSwapInterval]; 
+                
+//             GLint order = -1;
+//             [[self openGLContext] setValues:&order forParameter:NSOpenGLCPSurfaceOrder];
+                
+                // event delegate
+                eventDelegate_ = nil;           
+        }
+        
+        return self;
+}
+        
+- (void) reshape
+{
+        // We draw on a secondary thread through the display link
+        // When resizing the view, -reshape is called automatically on the main thread
+        // Add a mutex around to avoid the threads accessing the context simultaneously when resizing
+        CGLLockContext([[self openGLContext] CGLContextObj]);
+        
+        NSRect rect = [self bounds];
+        
+        CCDirector *director = [CCDirector sharedDirector];
+        [director reshapeProjection: NSSizeToCGSize(rect.size) ];
+        
+        // avoid flicker
+        [director drawScene];
+//      [self setNeedsDisplay:YES];
+        
+        CGLUnlockContext([[self openGLContext] CGLContextObj]);
+}
+
+- (void) dealloc
+{       
+
+        [super dealloc];
+}
+
+#if CC_DIRECTOR_MAC_USE_DISPLAY_LINK_THREAD
+#define DISPATCH_EVENT(__event__, __selector__) [eventDelegate_ queueEvent:__event__ selector:__selector__];
+#else
+#define DISPATCH_EVENT(__event__, __selector__)                                                                                         \
+        id obj = eventDelegate_;                                                                                                                                \
+        [obj performSelector:__selector__                                                                                                               \
+                        onThread:[(CCDirectorMac*)[CCDirector sharedDirector] runningThread]                    \
+                  withObject:__event__                                                                                                                          \
+           waitUntilDone:NO];
+#endif
+
+#pragma mark MacGLView - Mouse events
+- (void)mouseDown:(NSEvent *)theEvent
+{
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+- (void)mouseMoved:(NSEvent *)theEvent
+{
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+- (void)mouseDragged:(NSEvent *)theEvent
+{
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+- (void)mouseUp:(NSEvent *)theEvent
+{
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+- (void)rightMouseDown:(NSEvent *)theEvent {
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+- (void)rightMouseDragged:(NSEvent *)theEvent {
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+- (void)rightMouseUp:(NSEvent *)theEvent {
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+- (void)otherMouseDown:(NSEvent *)theEvent {
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+- (void)otherMouseDragged:(NSEvent *)theEvent {
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+- (void)otherMouseUp:(NSEvent *)theEvent {
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+- (void)mouseEntered:(NSEvent *)theEvent {
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+- (void)mouseExited:(NSEvent *)theEvent {
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+-(void) scrollWheel:(NSEvent *)theEvent {
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+#pragma mark MacGLView - Key events
+
+-(BOOL) becomeFirstResponder
+{
+        return YES;
+}
+
+-(BOOL) acceptsFirstResponder
+{
+        return YES;
+}
+
+-(BOOL) resignFirstResponder
+{
+        return YES;
+}
+
+- (void)keyDown:(NSEvent *)theEvent
+{
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+- (void)keyUp:(NSEvent *)theEvent
+{
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+- (void)flagsChanged:(NSEvent *)theEvent
+{
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+#pragma mark MacGLView - Touch events
+- (void)touchesBeganWithEvent:(NSEvent *)theEvent
+{
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+- (void)touchesMovedWithEvent:(NSEvent *)theEvent
+{
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+- (void)touchesEndedWithEvent:(NSEvent *)theEvent
+{
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+- (void)touchesCancelledWithEvent:(NSEvent *)theEvent
+{
+        DISPATCH_EVENT(theEvent, _cmd);
+}
+
+@end
+
+#endif // __MAC_OS_X_VERSION_MAX_ALLOWED