#include "MacOpenGLWindow.h"

#include "MacOpenGLWindow.h"

#define GL_DO_NOT_WARN_IF_MULTI_GL_VERSION_HEADERS_INCLUDED
#import <Cocoa/Cocoa.h>
#include "OpenGLInclude.h"

#include <stdlib.h>
#include <stdio.h>
#include <stddef.h>
#include <string.h>

enum
{
MY_MAC_ALTKEY=1,
MY_MAC_SHIFTKEY=2,
MY_MAC_CONTROL_KEY=4
};

/* report GL errors, if any, to stderr */
static void checkError(const char *functionName)
{
GLenum error;
while (( error = glGetError() ) != GL_NO_ERROR)
{
fprintf (stderr, "GL error 0x%X detected in %s\n", error, functionName);
}
}

void dumpInfo(void)
{
printf ("Vendor: %s\n", glGetString (GL_VENDOR));
printf ("Renderer: %s\n", glGetString (GL_RENDERER));
printf ("Version: %s\n", glGetString (GL_VERSION));
printf ("GLSL: %s\n", glGetString (GL_SHADING_LANGUAGE_VERSION));
checkError ("dumpInfo");
}

// -------------------- View ------------------------

@interface TestView : NSView
{
NSOpenGLContext* m_context;
int m_lastWidth;
int m_lastHeight;
bool m_requestClose;
b3ResizeCallback m_resizeCallback;

}
-(void)drawRect:(NSRect)rect;
-(void) MakeContext:(int) openglVersion;
-(void) MakeCurrent;
-(float) GetWindowWidth;
-(float) GetWindowHeight;
-(BOOL) GetRequestClose;
- (BOOL)windowShouldClose:(id)sender;
-(void) setResizeCallback:(b3ResizeCallback) callback;
-(b3ResizeCallback) getResizeCallback;
-(NSOpenGLContext*) getContext;
@end

float loop;

#define Pi 3.1415

@implementation TestView

- (BOOL)windowShouldClose:(id)sender
{
m_requestClose = true;
return false;
}
-(BOOL) GetRequestClose
{
return m_requestClose;
}
-(float) GetWindowWidth
{
return m_lastWidth;
}
-(float) GetWindowHeight
{
return m_lastHeight;
}

-(b3ResizeCallback) getResizeCallback
{
return m_resizeCallback;
}

-(NSOpenGLContext*) getContext
{
return m_context;
}
-(void)setResizeCallback:(b3ResizeCallback)callback
{
m_resizeCallback = callback;
}
-(void)drawRect:(NSRect)rect
{
if (([self frame].size.width != m_lastWidth) || ([self frame].size.height != m_lastHeight))
{
m_lastWidth = [self frame].size.width;
m_lastHeight = [self frame].size.height;

// Only needed on resize:
[m_context clearDrawable];

// reshape([self frame].size.width, [self frame].size.height);
float width = [self frame].size.width;
float height = [self frame].size.height;

// Get view dimensions in pixels
// glViewport(0,0,10,10);

if (m_resizeCallback)
{
(*m_resizeCallback)(width,height);
}
#ifndef NO_OPENGL3
NSRect backingBounds = [self convertRectToBacking:[self bounds]];
GLsizei backingPixelWidth = (GLsizei)(backingBounds.size.width),
backingPixelHeight = (GLsizei)(backingBounds.size.height);

// Set viewport
glViewport(0, 0, backingPixelWidth, backingPixelHeight);
#else
glViewport(0,0,(GLsizei)width,(GLsizei)height);
#endif
}

[m_context setView: self];
[m_context makeCurrentContext];

// Draw
//display();

[m_context flushBuffer];
[NSOpenGLContext clearCurrentContext];

loop = loop + 0.1;
}

-(void) MakeContext :(int) openglVersion
{
// NSWindow *w;
NSOpenGLPixelFormat *fmt;

m_requestClose = false;

#ifndef NO_OPENGL3
if (openglVersion==3)
{
NSOpenGLPixelFormatAttribute attrs[] =
{
NSOpenGLPFAOpenGLProfile,
NSOpenGLProfileVersion3_2Core,
NSOpenGLPFADoubleBuffer,
NSOpenGLPFADepthSize, 32,
NSOpenGLPFAStencilSize, (NSOpenGLPixelFormatAttribute)8,
(NSOpenGLPixelFormatAttribute)0
};

// Init GL context
fmt = [[NSOpenGLPixelFormat alloc] initWithAttributes: (NSOpenGLPixelFormatAttribute*)attrs];
} else
#endif
{
NSOpenGLPixelFormatAttribute attrs[] =
{
NSOpenGLPFADoubleBuffer,
NSOpenGLPFADepthSize, 32,
NSOpenGLPFAStencilSize, (NSOpenGLPixelFormatAttribute)8,
(NSOpenGLPixelFormatAttribute)0
};
// Init GL context
fmt = [[NSOpenGLPixelFormat alloc] initWithAttributes: (NSOpenGLPixelFormatAttribute*)attrs];

}
m_context = [[NSOpenGLContext alloc] initWithFormat: fmt shareContext: nil];
[fmt release];
[m_context makeCurrentContext];

checkError("makeCurrentContext");
}

-(void) MakeCurrent
{
[m_context makeCurrentContext];
}
-(void)windowWillClose:(NSNotification *)note
{
[[NSApplication sharedApplication] terminate:self];
}
@end

struct MacOpenGLWindowInternalData
{
MacOpenGLWindowInternalData()
{
m_myApp = 0;
m_myview = 0;
m_pool = 0;
m_window = 0;
m_width = -1;
m_height = -1;
m_exitRequested = false;
}
NSApplication* m_myApp;
TestView* m_myview;
NSAutoreleasePool* m_pool;
NSWindow* m_window;
int m_width;
int m_height;
bool m_exitRequested;

};

MacOpenGLWindow::MacOpenGLWindow()
:m_internalData(0),
m_mouseX(0),
m_mouseY(0),
m_modifierFlags(0),
m_mouseMoveCallback(0),
m_mouseButtonCallback(0),
m_wheelCallback(0),
m_keyboardCallback(0),
m_retinaScaleFactor(1),
m_allowRetina(true)
{
}

MacOpenGLWindow::~MacOpenGLWindow()
{
if (m_internalData)
closeWindow();
}

bool MacOpenGLWindow::isModifierKeyPressed(int key)
{
bool isPressed = false;

switch (key)
{
case B3G_ALT:
{
isPressed = ((m_modifierFlags & MY_MAC_ALTKEY)!=0);
break;
};
case B3G_SHIFT:
{
isPressed = ((m_modifierFlags & MY_MAC_SHIFTKEY)!=0);
break;
};
case B3G_CONTROL:
{
isPressed = ((m_modifierFlags & MY_MAC_CONTROL_KEY )!=0);
break;
};

default:
{
}
};
return isPressed;
}

float MacOpenGLWindow::getTimeInSeconds()
{
return 0.f;
}

void MacOpenGLWindow::setRenderCallback( b3RenderCallback renderCallback)
{
m_renderCallback = renderCallback;
}

void MacOpenGLWindow::setWindowTitle(const char* windowTitle)
{
[m_internalData->m_window setTitle:[NSString stringWithCString:windowTitle encoding:NSISOLatin1StringEncoding]] ;
}

void MacOpenGLWindow::createWindow(const b3gWindowConstructionInfo& ci)
{
if (m_internalData)
closeWindow();

int width = ci.m_width;
int height = ci.m_height;
const char* windowTitle = ci.m_title;

NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

m_internalData = new MacOpenGLWindowInternalData;
m_internalData->m_width = width;
m_internalData->m_height = height;

m_internalData->m_pool = [NSAutoreleasePool new];
m_internalData->m_myApp = [NSApplication sharedApplication];
//myApp = [MyApp sharedApplication];
//home();

[NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];

id menubar = [[NSMenu new] autorelease];
id appMenuItem = [[NSMenuItem new] autorelease];
[menubar addItem:appMenuItem];
[NSApp setMainMenu:menubar];

id appMenu = [[NSMenu new] autorelease];
id appName = [[NSProcessInfo processInfo] processName];
id quitTitle = [@"Quit " stringByAppendingString:appName];
id quitMenuItem = [[[NSMenuItem alloc] initWithTitle:quitTitle
action:@selector(terminate:) keyEquivalent:@"q"] autorelease];

[appMenu addItem:quitMenuItem];
[appMenuItem setSubmenu:appMenu];

NSMenuItem *fileMenuItem = [[NSMenuItem new] autorelease];
NSMenu *fileMenu = [[NSMenu alloc] initWithTitle:@"File"];
[fileMenuItem setSubmenu: fileMenu]; // was setMenu:

NSMenuItem *newMenu = [[NSMenuItem alloc] initWithTitle:@"New" action:NULL keyEquivalent:@""];
NSMenuItem *openMenu = [[NSMenuItem alloc] initWithTitle:@"Open" action:NULL keyEquivalent:@""];
NSMenuItem *saveMenu = [[NSMenuItem alloc] initWithTitle:@"Save" action:NULL keyEquivalent:@""];

[fileMenu addItem: newMenu];
[fileMenu addItem: openMenu];
[fileMenu addItem: saveMenu];
[menubar addItem: fileMenuItem];

// add Edit menu
NSMenuItem *editMenuItem = [[NSMenuItem new] autorelease];
NSMenu *menu = [[NSMenu allocWithZone:[NSMenu menuZone]]initWithTitle:@"Edit"];
[editMenuItem setSubmenu: menu];

NSMenuItem *copyItem = [[NSMenuItem allocWithZone:[NSMenu menuZone]]initWithTitle:@"Copy" action:@selector(copy:) keyEquivalent:@"c"];

[menu addItem:copyItem];
[menubar addItem:editMenuItem];

// [mainMenu setSubmenu:menu forItem:menuItem];

//NSMenuItem *fileMenuItem = [[NSMenuItem alloc] initWithTitle: @"File"];
/*[fileMenuItem setSubmenu: fileMenu]; // was setMenu:
[fileMenuItem release];
*/

/*NSMenu *newMenu;
NSMenuItem *newItem;

// Add the submenu
newItem = [[NSMenuItem allocWithZone:[NSMenu menuZone]]
initWithTitle:@"Flashy" action:NULL keyEquivalent:@""];
newMenu = [[NSMenu allocWithZone:[NSMenu menuZone]]
initWithTitle:@"Flashy"];
[newItem setSubmenu:newMenu];
[newMenu release];
[[NSApp mainMenu] addItem:newItem];
[newItem release];
*/

NSRect frame = NSMakeRect(0., 0., width, height);

m_internalData->m_window = [NSWindow alloc];
[m_internalData->m_window initWithContentRect:frame
styleMask:NSTitledWindowMask |NSResizableWindowMask| NSClosableWindowMask | NSMiniaturizableWindowMask
backing:NSBackingStoreBuffered
defer:false];

[m_internalData->m_window setTitle:[NSString stringWithCString:windowTitle encoding:NSISOLatin1StringEncoding]] ;

m_internalData->m_myview = [TestView alloc];

[m_internalData->m_myview setResizeCallback:0];
///ci.m_resizeCallback];

[m_internalData->m_myview initWithFrame: frame];

// OpenGL init!
[m_internalData->m_myview MakeContext : ci.m_openglVersion];

// https://developer.apple.com/library/mac/#documentation/GraphicsAnimation/Conceptual/HighResolutionOSX/CapturingScreenContents/CapturingScreenContents.html#//apple_ref/doc/uid/TP40012302-CH10-SW1
//support HighResolutionOSX for Retina Macbook
if (ci.m_openglVersion>=3)
{
if (m_allowRetina)
{
[m_internalData->m_myview setWantsBestResolutionOpenGLSurface:YES];
}
}
NSSize sz;
sz.width = 1;
sz.height = 1;

// float newBackingScaleFactor = [m_internalData->m_window backingScaleFactor];

dumpInfo();

[m_internalData->m_window setContentView: m_internalData->m_myview];

[m_internalData->m_window setDelegate:(id) m_internalData->m_myview];

[m_internalData->m_window makeKeyAndOrderFront: nil];

[m_internalData->m_myview MakeCurrent];
m_internalData->m_width = m_internalData->m_myview.GetWindowWidth;
m_internalData->m_height = m_internalData->m_myview.GetWindowHeight;

[NSApp activateIgnoringOtherApps:YES];

//[m_internalData->m_window setLevel:NSMainMenuWindowLevel];

// [NSEvent addGlobalMonitorForEventsMatchingMask:NSMouseMovedMask];

// [NSEvent addGlobalMonitorForEventsMatchingMask:NSMouseMovedMask handler:^(NSEvent *event)
// {
//[window setFrameOrigin:[NSEvent mouseLocation]];
// NSPoint eventLocation = [m_internalData->m_window mouseLocationOutsideOfEventStream];

// NSPoint eventLocation = [event locationInWindow];
//NSPoint center = [m_internalData->m_myview convertPoint:eventLocation fromView:nil];
// m_mouseX = center.x;
// m_mouseY = [m_internalData->m_myview GetWindowHeight] - center.y;

// printf("mouse coord = %f, %f\n",m_mouseX,m_mouseY);
// if (m_mouseMoveCallback)
// (*m_mouseMoveCallback)(m_mouseX,m_mouseY);

// }];

//see http://stackoverflow.com/questions/8238473/cant-get-nsmousemoved-events-from-nexteventmatchingmask-with-an-nsopenglview
/* ProcessSerialNumber psn;
GetCurrentProcess(&psn);
TransformProcessType(&psn, kProcessTransformToForegroundApplication);
SetFrontProcess(&psn);
*/
#ifndef NO_OPENGL3
m_retinaScaleFactor = [m_internalData->m_myview convertSizeToBacking:sz].width;
#else
m_retinaScaleFactor=1.f;
#endif

[m_internalData->m_myApp finishLaunching];
[pool release];

}

void MacOpenGLWindow::runMainLoop()
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
// FILE* dump = fopen ("/Users/erwincoumans/yes.txt","wb");
// fclose(dump);

[pool release];

}

void MacOpenGLWindow::closeWindow()
{

delete m_internalData;
m_internalData = 0;

}
extern float m_azi;
extern float m_ele;
extern float m_cameraDistance;

/*
* Summary:
* Virtual keycodes
*
* Discussion:
* These constants are the virtual keycodes defined originally in
* Inside Mac Volume V, pg. V-191. They identify physical keys on a
* keyboard. Those constants with "ANSI" in the name are labeled
* according to the key position on an ANSI-standard US keyboard.
* For example, kVK_ANSI_A indicates the virtual keycode for the key
* with the letter 'A' in the US keyboard layout. Other keyboard
* layouts may have the 'A' key label on a different physical key;
* in this case, pressing 'A' will generate a different virtual
* keycode.
*/
enum {
kVK_ANSI_A = 0x00,
kVK_ANSI_S = 0x01,
kVK_ANSI_D = 0x02,
kVK_ANSI_F = 0x03,
kVK_ANSI_H = 0x04,
kVK_ANSI_G = 0x05,
kVK_ANSI_Z = 0x06,
kVK_ANSI_X = 0x07,
kVK_ANSI_C = 0x08,
kVK_ANSI_V = 0x09,
kVK_ANSI_B = 0x0B,
kVK_ANSI_Q = 0x0C,
kVK_ANSI_W = 0x0D,
kVK_ANSI_E = 0x0E,
kVK_ANSI_R = 0x0F,
kVK_ANSI_Y = 0x10,
kVK_ANSI_T = 0x11,
kVK_ANSI_1 = 0x12,
kVK_ANSI_2 = 0x13,
kVK_ANSI_3 = 0x14,
kVK_ANSI_4 = 0x15,
kVK_ANSI_6 = 0x16,
kVK_ANSI_5 = 0x17,
kVK_ANSI_Equal = 0x18,
kVK_ANSI_9 = 0x19,
kVK_ANSI_7 = 0x1A,
kVK_ANSI_Minus = 0x1B,
kVK_ANSI_8 = 0x1C,
kVK_ANSI_0 = 0x1D,
kVK_ANSI_RightBracket = 0x1E,
kVK_ANSI_O = 0x1F,
kVK_ANSI_U = 0x20,
kVK_ANSI_LeftBracket = 0x21,
kVK_ANSI_I = 0x22,
kVK_ANSI_P = 0x23,
kVK_ANSI_L = 0x25,
kVK_ANSI_J = 0x26,
kVK_ANSI_Quote = 0x27,
kVK_ANSI_K = 0x28,
kVK_ANSI_Semicolon = 0x29,
kVK_ANSI_Backslash = 0x2A,
kVK_ANSI_Comma = 0x2B,
kVK_ANSI_Slash = 0x2C,
kVK_ANSI_N = 0x2D,
kVK_ANSI_M = 0x2E,
kVK_ANSI_Period = 0x2F,
kVK_ANSI_Grave = 0x32,
kVK_ANSI_KeypadDecimal = 0x41,
kVK_ANSI_KeypadMultiply = 0x43,
kVK_ANSI_KeypadPlus = 0x45,
kVK_ANSI_KeypadClear = 0x47,
kVK_ANSI_KeypadDivide = 0x4B,
kVK_ANSI_KeypadEnter = 0x4C,
kVK_ANSI_KeypadMinus = 0x4E,
kVK_ANSI_KeypadEquals = 0x51,
kVK_ANSI_Keypad0 = 0x52,
kVK_ANSI_Keypad1 = 0x53,
kVK_ANSI_Keypad2 = 0x54,
kVK_ANSI_Keypad3 = 0x55,
kVK_ANSI_Keypad4 = 0x56,
kVK_ANSI_Keypad5 = 0x57,
kVK_ANSI_Keypad6 = 0x58,
kVK_ANSI_Keypad7 = 0x59,
kVK_ANSI_Keypad8 = 0x5B,
kVK_ANSI_Keypad9 = 0x5C
};

/* keycodes for keys that are independent of keyboard layout*/
enum {
kVK_Return = 0x24,
kVK_Tab = 0x30,
kVK_Space = 0x31,
kVK_Delete = 0x33,
kVK_Escape = 0x35,
kVK_Command = 0x37,
kVK_Shift = 0x38,
kVK_CapsLock = 0x39,
kVK_Option = 0x3A,
kVK_Control = 0x3B,
kVK_RightShift = 0x3C,
kVK_RightOption = 0x3D,
kVK_RightControl = 0x3E,
kVK_Function = 0x3F,
kVK_F17 = 0x40,
kVK_VolumeUp = 0x48,
kVK_VolumeDown = 0x49,
kVK_Mute = 0x4A,
kVK_F18 = 0x4F,
kVK_F19 = 0x50,
kVK_F20 = 0x5A,
kVK_F5 = 0x60,
kVK_F6 = 0x61,
kVK_F7 = 0x62,
kVK_F3 = 0x63,
kVK_F8 = 0x64,
kVK_F9 = 0x65,
kVK_F11 = 0x67,
kVK_F13 = 0x69,
kVK_F16 = 0x6A,
kVK_F14 = 0x6B,
kVK_F10 = 0x6D,
kVK_F12 = 0x6F,
kVK_F15 = 0x71,
kVK_Help = 0x72,
kVK_Home = 0x73,
kVK_PageUp = 0x74,
kVK_ForwardDelete = 0x75,
kVK_F4 = 0x76,
kVK_End = 0x77,
kVK_F2 = 0x78,
kVK_PageDown = 0x79,
kVK_F1 = 0x7A,
kVK_LeftArrow = 0x7B,
kVK_RightArrow = 0x7C,
kVK_DownArrow = 0x7D,
kVK_UpArrow = 0x7E
};

/* ISO keyboards only*/
enum {
kVK_ISO_Section = 0x0A
};

/* JIS keyboards only*/
enum {
kVK_JIS_Yen = 0x5D,
kVK_JIS_Underscore = 0x5E,
kVK_JIS_KeypadComma = 0x5F,
kVK_JIS_Eisu = 0x66,
kVK_JIS_Kana = 0x68
};

int getAsciiCodeFromVirtualKeycode(int virtualKeyCode)
{
int keycode = 0xffffffff;

switch (virtualKeyCode)
{

case kVK_ANSI_A : {keycode = 'a'; break;}
case kVK_ANSI_B : {keycode = 'b'; break;}
case kVK_ANSI_C : {keycode = 'c'; break;}
case kVK_ANSI_D : {keycode = 'd';break;}
case kVK_ANSI_E : {keycode = 'e'; break;}
case kVK_ANSI_F : {keycode = 'f'; break;}
case kVK_ANSI_G : {keycode = 'g'; break;}
case kVK_ANSI_H : {keycode = 'h'; break;}
case kVK_ANSI_I : {keycode = 'i'; break;}
case kVK_ANSI_J : {keycode = 'j'; break;}
case kVK_ANSI_K : {keycode = 'k'; break;}
case kVK_ANSI_L : {keycode = 'l'; break;}
case kVK_ANSI_M : {keycode = 'm'; break;}
case kVK_ANSI_N : {keycode = 'n'; break;}
case kVK_ANSI_O : {keycode = 'o'; break;}
case kVK_ANSI_P : {keycode = 'p'; break;}
case kVK_ANSI_Q : {keycode = 'q'; break;}
case kVK_ANSI_R : {keycode = 'r'; break;}
case kVK_ANSI_S : {keycode = 's';break;}
case kVK_ANSI_T : {keycode = 't'; break;}
case kVK_ANSI_U : {keycode = 'u'; break;}
case kVK_ANSI_V : {keycode = 'v'; break;}
case kVK_ANSI_W : {keycode = 'w'; break;}
case kVK_ANSI_X : {keycode = 'x'; break;}
case kVK_ANSI_Y : {keycode = 'y'; break;}
case kVK_ANSI_Z : {keycode = 'z'; break;}

case kVK_ANSI_1 : {keycode = '1'; break;}
case kVK_ANSI_2 : {keycode = '2'; break;}
case kVK_ANSI_3 : {keycode = '3'; break;}
case kVK_ANSI_4 : {keycode = '4'; break;}
case kVK_ANSI_5 : {keycode = '5'; break;}
case kVK_ANSI_6 : {keycode = '6'; break;}
case kVK_ANSI_7 : {keycode = '7'; break;}
case kVK_ANSI_8 : {keycode = '8'; break;}
case kVK_ANSI_9 : {keycode = '9'; break;}
case kVK_ANSI_0 : {keycode = '0'; break;}
case kVK_ANSI_Equal : {keycode = '='; break;}
case kVK_ANSI_Minus : {keycode = '-'; break;}

case kVK_Tab: {keycode = 9; break;}
case kVK_Space: {keycode=' '; break;}
case kVK_Escape: {keycode=27; break;}
case kVK_Delete: {keycode=8; break;}
case kVK_ForwardDelete: {keycode=B3G_INSERT; break;}

case kVK_F1: {keycode = B3G_F1; break;}
case kVK_F2: {keycode = B3G_F2; break;}
case kVK_F3: {keycode = B3G_F3; break;}
case kVK_F4: {keycode = B3G_F4; break;}
case kVK_F5: {keycode = B3G_F5; break;}
case kVK_F6: {keycode = B3G_F6; break;}
case kVK_F7: {keycode = B3G_F7; break;}
case kVK_F8: {keycode = B3G_F8; break;}
case kVK_F9: {keycode = B3G_F9; break;}
case kVK_F10: {keycode = B3G_F10; break;}
case kVK_F11: {keycode = B3G_F11; break;}
case kVK_F12: {keycode = B3G_F12; break;}
case kVK_F13: {keycode = B3G_F13; break;}
case kVK_F14: {keycode = B3G_F14; break;}
case kVK_F15: {keycode = B3G_F15; break;}

case kVK_LeftArrow: {keycode = B3G_LEFT_ARROW;break;}
case kVK_RightArrow: {keycode = B3G_RIGHT_ARROW;break;}
case kVK_UpArrow: {keycode = B3G_UP_ARROW;break;}
case kVK_DownArrow: {keycode = B3G_DOWN_ARROW;break;}

case kVK_PageUp :{keycode = B3G_PAGE_UP;break;}
case kVK_PageDown :{keycode = B3G_PAGE_DOWN;break;}
case kVK_End :{keycode = B3G_END;break;}
case kVK_Home :{keycode = B3G_HOME;break;}
case kVK_Control: {keycode = B3G_CONTROL;break;}
case kVK_Option: {keycode = B3G_ALT;break;}

case kVK_ANSI_RightBracket : {keycode = ']'; break;}
case kVK_ANSI_LeftBracket : {keycode = '['; break;}
case kVK_ANSI_Quote : {keycode = '\''; break;}
case kVK_ANSI_Semicolon : {keycode = ';'; break;}
case kVK_ANSI_Backslash : {keycode = '\\'; break;}
case kVK_ANSI_Comma : {keycode = ','; break;}
case kVK_ANSI_Slash : {keycode = '/'; break;}
case kVK_ANSI_Period : {keycode = '.'; break;}
case kVK_ANSI_Grave : {keycode = '`'; break;}
case kVK_ANSI_KeypadDecimal : {keycode = '.'; break;}
case kVK_ANSI_KeypadMultiply : {keycode = '*'; break;}
case kVK_ANSI_KeypadPlus : {keycode = '+'; break;}
case kVK_ANSI_KeypadClear : {keycode = '?'; break;}
case kVK_ANSI_KeypadDivide : {keycode = '/'; break;}
case kVK_ANSI_KeypadEnter : {keycode = B3G_RETURN; break;}
case kVK_ANSI_KeypadMinus : {keycode = '-'; break;}
case kVK_ANSI_KeypadEquals : {keycode = '='; break;}
case kVK_ANSI_Keypad0 : {keycode = '0'; break;}
case kVK_ANSI_Keypad1 : {keycode = '1'; break;}
case kVK_ANSI_Keypad2 : {keycode = '2'; break;}
case kVK_ANSI_Keypad3 : {keycode = '3'; break;}
case kVK_ANSI_Keypad4 : {keycode = '4'; break;}
case kVK_ANSI_Keypad5 : {keycode = '5'; break;}
case kVK_ANSI_Keypad6 : {keycode = '6'; break;}
case kVK_ANSI_Keypad7 : {keycode = '7'; break;}
case kVK_ANSI_Keypad8 : {keycode = '8'; break;}
case kVK_ANSI_Keypad9 : {keycode = '9'; break;}
case kVK_Return:
{
keycode = B3G_RETURN; break;
}

default:
{

printf("unknown keycode\n");
}
}
return keycode;
}

void MacOpenGLWindow::startRendering()
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

GLint err = glGetError();
assert(err==GL_NO_ERROR);

NSEvent *event = nil;
bool handledEvent = false;

do
{
[pool release];
pool = [[NSAutoreleasePool alloc] init];
event = [m_internalData->m_myApp
nextEventMatchingMask:NSAnyEventMask
untilDate:[NSDate distantPast]
inMode:NSDefaultRunLoopMode
// inMode:NSEventTrackingRunLoopMode
dequeue:YES];

//NSShiftKeyMask = 1 << 17,
//NSControlKeyMask

if ([event type] == NSFlagsChanged)
{
int modifiers = [event modifierFlags];
if (m_keyboardCallback)
{
if ((modifiers & NSShiftKeyMask))
{
m_keyboardCallback(B3G_SHIFT,1);
m_modifierFlags |= MY_MAC_SHIFTKEY;
}else
{
if (m_modifierFlags& MY_MAC_SHIFTKEY)
{
m_keyboardCallback(B3G_SHIFT,0);
m_modifierFlags &= ~MY_MAC_SHIFTKEY;
}
}
if (modifiers & NSControlKeyMask)
{
m_keyboardCallback(B3G_CONTROL,1);
m_modifierFlags |= MY_MAC_CONTROL_KEY;
} else
{
if (m_modifierFlags&MY_MAC_CONTROL_KEY)
{
m_keyboardCallback(B3G_CONTROL,0);
m_modifierFlags &= ~MY_MAC_CONTROL_KEY;
}
}
if (modifiers & NSAlternateKeyMask)
{
m_keyboardCallback(B3G_ALT,1);
m_modifierFlags |= MY_MAC_ALTKEY;
} else
{
if (m_modifierFlags&MY_MAC_ALTKEY)
{
m_keyboardCallback(B3G_ALT,0);
m_modifierFlags &= ~MY_MAC_ALTKEY;

}
}
//handle NSCommandKeyMask

}
}
if ([event type] == NSKeyUp)
{
handledEvent = true;

uint32 virtualKeycode = [event keyCode];

int keycode = getAsciiCodeFromVirtualKeycode(virtualKeycode);
// printf("keycode = %d\n", keycode);

if (m_keyboardCallback)
{
int state = 0;
m_keyboardCallback(keycode,state);
}
}
if ([event type] == NSKeyDown)
{
handledEvent = true;

if (![event isARepeat])
{
uint32 virtualKeycode = [event keyCode];

int keycode = getAsciiCodeFromVirtualKeycode(virtualKeycode);
//printf("keycode = %d\n", keycode);

if (m_keyboardCallback)
{
int state = 1;
m_keyboardCallback(keycode,state);
}
}
}

if (([event type]== NSRightMouseDown) || ([ event type]==NSLeftMouseDown)||([event type]==NSOtherMouseDown))
{
// printf("right mouse!");
// float mouseX,mouseY;

NSPoint eventLocation = [event locationInWindow];
NSPoint center = [m_internalData->m_myview convertPoint:eventLocation fromView:nil];
m_mouseX = center.x;
m_mouseY = [m_internalData->m_myview GetWindowHeight] - center.y;
int button=0;
switch ([event type])
{
case NSLeftMouseDown:
{
button=0;
break;
}
case NSOtherMouseDown:
{
button=1;
break;
}
case NSRightMouseDown:
{
button=2;
break;
}
default:
{

}
};
// printf("mouse coord = %f, %f\n",mouseX,mouseY);
if (m_mouseButtonCallback)
{
//handledEvent = true;
(*m_mouseButtonCallback)(button,1,m_mouseX,m_mouseY);
}
}

if (([event type]== NSRightMouseUp) || ([ event type]==NSLeftMouseUp)||([event type]==NSOtherMouseUp))
{
// printf("right mouse!");
// float mouseX,mouseY;

NSPoint eventLocation = [event locationInWindow];
NSPoint center = [m_internalData->m_myview convertPoint:eventLocation fromView:nil];
m_mouseX = center.x;
m_mouseY = [m_internalData->m_myview GetWindowHeight] - center.y;

int button=0;
switch ([event type])
{
case NSLeftMouseUp:
{
button=0;
break;
}
case NSOtherMouseUp:
{
button=1;
break;
}
case NSRightMouseUp:
{
button=2;
break;
}
default:
{

}
};

// printf("mouse coord = %f, %f\n",mouseX,mouseY);
if (m_mouseButtonCallback)
(*m_mouseButtonCallback)(button,0,m_mouseX,m_mouseY);

}

if ([event type] == NSMouseMoved)
{

// http://stackoverflow.com/questions/4630509/how-to-find-if-the-mouse-is-over-a-view
NSPoint globalLocation = [ NSEvent mouseLocation ];
NSPoint windowLocation = [ [m_internalData->m_myview window] convertScreenToBase:globalLocation ];
NSPoint viewLocation = [ m_internalData->m_myview convertPoint:windowLocation fromView: nil ];

//NSPoint eventLocation = [NSEvent mouseLocation]; //[event locationInWindow];
//NSPoint center = [m_internalData->m_myview convertPoint:eventLocation fromView:nil];
NSPoint center = viewLocation;
m_mouseX = center.x;
m_mouseY = [m_internalData->m_myview GetWindowHeight] - center.y;

//printf("mouse coord = %f, %f\n",m_mouseX,m_mouseY);
if (m_mouseMoveCallback)
{
//handledEvent = true;
(*m_mouseMoveCallback)(m_mouseX,m_mouseY);
}
}

if (([event type] == NSLeftMouseDragged) || ([event type] == NSRightMouseDragged) || ([event type] == NSOtherMouseDragged))
{
int dx1, dy1;
CGGetLastMouseDelta (&dx1, &dy1);

NSPoint eventLocation = [event locationInWindow];
NSPoint center = [m_internalData->m_myview convertPoint:eventLocation fromView:nil];
m_mouseX = center.x;
m_mouseY = [m_internalData->m_myview GetWindowHeight] - center.y;

if (m_mouseMoveCallback)
{
//handledEvent = true;
(*m_mouseMoveCallback)(m_mouseX,m_mouseY);
}

// printf("mouse coord = %f, %f\n",m_mouseX,m_mouseY);
}

if ([event type] == NSScrollWheel)
{
float dy, dx;
dy = [ event deltaY ];
dx = [ event deltaX ];

if (m_wheelCallback)
{
handledEvent = true;
(*m_wheelCallback)(dx,dy);
}
// m_cameraDistance -= dy*0.1;
// m_azi -= dx*0.1;

}

if (!handledEvent)
[m_internalData->m_myApp sendEvent:event];

[m_internalData->m_myApp updateWindows];
} while (event);

err = glGetError();
assert(err==GL_NO_ERROR);

[m_internalData->m_myview MakeCurrent];
err = glGetError();
assert(err==GL_NO_ERROR);

// glClearColor(1,1,1,1);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); //clear buffers

err = glGetError();
assert(err==GL_NO_ERROR);

//glCullFace(GL_BACK);
//glFrontFace(GL_CCW);
glEnable(GL_DEPTH_TEST);
err = glGetError();
assert(err==GL_NO_ERROR);

float aspect;
//b3Vector3 extents;

if (m_internalData->m_width > m_internalData->m_height)
{
aspect = (float)m_internalData->m_width / (float)m_internalData->m_height;
//extents.setValue(aspect * 1.0f, 1.0f,0);
} else
{
aspect = (float)m_internalData->m_height / (float)m_internalData->m_width;
//extents.setValue(1.0f, aspect*1.f,0);
}

err = glGetError();
assert(err==GL_NO_ERROR);
[pool release];

}

void MacOpenGLWindow::endRendering()
{
[m_internalData->m_myview MakeCurrent];
//#ifndef NO_OPENGL3
// glSwapAPPLE();
//#else
[[m_internalData->m_myview getContext] flushBuffer];
// #endif

}

bool MacOpenGLWindow::requestedExit() const
{
bool closeme = m_internalData->m_myview.GetRequestClose;
return m_internalData->m_exitRequested || closeme;
}

void MacOpenGLWindow::setRequestExit()
{
m_internalData->m_exitRequested = true;
}

#include <string.h>
int MacOpenGLWindow::fileOpenDialog(char* filename, int maxNameLength)
{
//save/restore the OpenGL context, NSOpenPanel can mess it up
//http://stackoverflow.com/questions/13987148/nsopenpanel-breaks-my-sdl-opengl-app

NSOpenGLContext *foo = [NSOpenGLContext currentContext];
// get the url of a .txt file
NSOpenPanel * zOpenPanel = [NSOpenPanel openPanel];
NSArray * zAryOfExtensions = [NSArray arrayWithObjects:@"urdf",@"bullet",@"obj",@"sdf",nil];
[zOpenPanel setAllowedFileTypes:zAryOfExtensions];
NSInteger zIntResult = [zOpenPanel runModal];

[foo makeCurrentContext];

if (zIntResult == NSFileHandlingPanelCancelButton) {
NSLog(@"readUsingOpenPanel cancelled");
return 0;
}
NSURL *zUrl = [zOpenPanel URL];
if (zUrl)
{
//without the file://
NSString *myString = [zUrl absoluteString];
int slen = [myString length];
if (slen < maxNameLength)
{
const char *cfilename=[myString UTF8String];
//expect file:// at start of URL
const char* p = strstr(cfilename, "file://");
if (p==cfilename)
{
int actualLen = strlen(cfilename)-7;
memcpy(filename, cfilename+7,actualLen);
filename[actualLen]=0;
return actualLen;
}
}
}

return 0;
}

void MacOpenGLWindow::getMouseCoordinates(int& x, int& y)
{

NSPoint pt = [m_internalData->m_window mouseLocationOutsideOfEventStream];
m_mouseX = pt.x;
m_mouseY = pt.y;

x = m_mouseX;
//our convention is x,y is upper left hand side
y = [m_internalData->m_myview GetWindowHeight]-m_mouseY;

}

int MacOpenGLWindow::getWidth() const
{
if (m_internalData && m_internalData->m_myview && m_internalData->m_myview.GetWindowWidth)
return m_internalData->m_myview.GetWindowWidth;
return 0;
}

int MacOpenGLWindow::getHeight() const
{
if (m_internalData && m_internalData->m_myview && m_internalData->m_myview.GetWindowHeight)
return m_internalData->m_myview.GetWindowHeight;
return 0;
}

void MacOpenGLWindow::setResizeCallback(b3ResizeCallback resizeCallback)
{
[m_internalData->m_myview setResizeCallback:resizeCallback];
if (resizeCallback)
{
(resizeCallback)(m_internalData->m_width,m_internalData->m_height);
}
}

b3ResizeCallback MacOpenGLWindow::getResizeCallback()
{
return [m_internalData->m_myview getResizeCallback];
}