milsko/src/backend/cocoa.m

#include <Mw/Milsko.h>

#ifdef __clang__
#pragma clang push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
#endif

static NSRect rectFlip(NSRect originFrame) {
  NSScreen *zeroScreen = [[NSScreen screens] objectAtIndex:0];
  double screenHeight = [zeroScreen frame].size.height;
  double originY = originFrame.origin.y;
  double frameHeight = originFrame.size.height;
  double destinationY = screenHeight - (originY + frameHeight);
  NSRect destinationFrame = originFrame;
  destinationFrame.origin.y = destinationY;
  if (destinationFrame.origin.x < 0)
    destinationFrame.origin.x = 0;
  if (destinationFrame.origin.y < 0)
    destinationFrame.origin.y = 0;
  if (destinationFrame.size.width < 0)
    destinationFrame.size.width = 0;
  if (destinationFrame.size.height < 0)
    destinationFrame.size.height = 0;
  return destinationFrame;
}

static NSPoint pointFlip(NSPoint point) {
  return rectFlip(NSMakeRect(point.x, point.y, 0, 0)).origin;
}

@implementation MilskoCocoaPixmap

+ (MilskoCocoaPixmap *)newWithWidth:(int)width height:(int)height {
  MilskoCocoaPixmap *p = [MilskoCocoaPixmap alloc];

  p->width = width;
  p->height = height;
  p->image = NULL;

  p->buf = malloc(width * height * 4);

  p->rep =
      [[NSBitmapImageRep alloc] initWithBitmapDataPlanes:&p->buf
                                              pixelsWide:(int)width
                                              pixelsHigh:(int)height
                                           bitsPerSample:8
                                         samplesPerPixel:4
                                                hasAlpha:YES
                                                isPlanar:NO
                                          colorSpaceName:NSDeviceRGBColorSpace
                                             bytesPerRow:(int)width * 4
                                            bitsPerPixel:32];
  assert(p->rep);

  p->image = [[NSImage alloc] initWithSize:NSMakeSize(width, height)];
  assert(p->image);
  [p->image addRepresentation:p->rep];

  return p;
}
- (void)updateWithData:(unsigned char *)_data {
  memcpy(self->buf, _data, width * height * 4);
  if (self->rep) {
    [self->image removeRepresentation:self->rep];
    [self->rep release];
  }
  self->rep =
      [[NSBitmapImageRep alloc] initWithBitmapDataPlanes:&self->buf
                                              pixelsWide:(int)width
                                              pixelsHigh:(int)height
                                           bitsPerSample:8
                                         samplesPerPixel:4
                                                hasAlpha:YES
                                                isPlanar:NO
                                          colorSpaceName:NSDeviceRGBColorSpace
                                             bytesPerRow:(int)width * 4
                                            bitsPerPixel:32];
  [self->image addRepresentation:self->rep];
}
- (void)destroy {
  free(self->buf);
  [self->image removeRepresentation:self->rep];
  [self->image dealloc];
  [self->rep dealloc];
}
- (NSImage *)image {
  return self->image;
}
@end

@implementation MilskoCocoa

+ (MilskoCocoa *)newWithParent:(MwLL)parent
                             x:(int)x
                             y:(int)y
                         width:(int)width
                        height:(int)height
                        handle:(MwLL)r {
  MilskoCocoa *c = [MilskoCocoa alloc];
  [c retain];

  if (x == MwDEFAULT) {
    x = ([[NSScreen mainScreen] frame].size.width / 2.) - (width / 2.);
  }
  if (y == MwDEFAULT) {
    y = ([[NSScreen mainScreen] frame].size.height / 2.) - (height / 2.);
  }
  c->application = [NSApplication sharedApplication];
  c->rect = rectFlip(NSMakeRect(x, y, width, height));

  if (parent == NULL) {
    c->window = [[MilskoCocoaWindow alloc]
        initWithContentRect:c->rect
                  styleMask:(NSTitledWindowMask |
                             NSTexturedBackgroundWindowMask |
                             NSClosableWindowMask | NSMiniaturizableWindowMask |
                             NSResizableWindowMask)
                    backing:NSBackingStoreBuffered
                      defer:NO];
  } else {
    double offset = 0;
    MilskoCocoaWindow *parentWindow = parent->cocoa.real->window;
    offset =
        [parentWindow frameRectForContentRect:[parentWindow frame]]
            .size.height -
        [parentWindow contentRectForFrameRect:[parentWindow frame]].size.height;

    c->rect.origin.x += [parentWindow frame].origin.x;
    c->rect.origin.y -= [parentWindow frame].origin.y - offset;
    c->rect.origin.y -= offset;

    c->window =
        [[MilskoCocoaWindow alloc] initWithContentRect:c->rect
                                             styleMask:NSBorderlessWindowMask
                                               backing:NSBackingStoreBuffered
                                                 defer:NO];
  }
  [c->window
      setDelegate:[[MilskoCocoaWindowDelegate alloc] initWithWin:c->window]];

  [c->window makeKeyAndOrderFront:c->application];
  [c->window retain];

  if (parent != NULL) {
    MilskoCocoa *p = parent->cocoa.real;
    double offset = 0;
    offset = [p->window frameRectForContentRect:[p->window frame]].size.height -
             [p->window contentRectForFrameRect:[p->window frame]].size.height;
    [p->window addChildWindow:c->window ordered:NSWindowAbove];
    [c->window setHasShadow:MwFALSE];
    [c->window setParentWindow:p->window];

    c->rect.origin.x += [p->window frame].origin.x;
    c->rect.origin.y -= [p->window frame].origin.y - offset;
    c->rect.origin.y -= offset;
  } else {
    if ([c->application respondsToSelector:@selector(setActivationPolicy:)]) {
      [c->application
          setActivationPolicy:0 /* NSApplicationActivationPolicyRegular */];
    }
    [c->window makeKeyAndOrderFront:nil];
    [c->application activateIgnoringOtherApps:true];
    [c->window makeFirstResponder:c->view];
  }
  [c->application setDelegate:[[MilskoCocoaApplicationDelegate alloc]
                                  initWithAppl:c->application]];
  [c->application retain];

  c->view = [[MilskoCocoaView alloc] initWithFrame:c->rect];
  [c->view retain];
  c->handle = [[MilskoFakePointer alloc] initWithFrame:NSMakeRect(0, 0, 1, 1)];
  [c->handle retain];
  [c->handle setPointer:r];
  [c->view addSubview:c->handle];

  [c->window setContentView:c->view];

  c->parent = parent;

  c->_forceRender = MwTRUE;
  c->strHash = 0;

  c->cursorPixmap = NULL;

  [c->application finishLaunching];

  c->pointerLocked = MwFALSE;

  return c;
}

- (void)polygonWithPoints:(MwPoint *)points
             points_count:(int)points_count
                    color:(MwLLColor)color {
  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
  NSGraphicsContext *ctx = [self->view context];
  if (ctx) {
    int i;
    NSBezierPath *path = [NSBezierPath bezierPath];
    NSColor *nscolor =
        [NSColor colorWithCalibratedRed:color->common.red / 255.
                                  green:color->common.green / 255.
                                   blue:color->common.blue / 255.
                                  alpha:1.0];

    [NSGraphicsContext saveGraphicsState];
    [NSGraphicsContext setCurrentContext:ctx];

    [nscolor setFill];
    for (i = 0; i < points_count; i++) {
      if (i == 0) {
        [path moveToPoint:NSMakePoint(points[i].x,
                                      [self->window frame].size.height -
                                          points[i].y)];
      } else {
        [path lineToPoint:NSMakePoint(points[i].x,
                                      [self->window frame].size.height -
                                          points[i].y)];
      }
    }

    [path closePath];
    [path fill];

    [NSGraphicsContext restoreGraphicsState];

    [self->view setNeedsDisplay:YES];
  }
  [pool release];
};
- (void)lineWithPoints:(MwPoint *)points color:(MwLLColor)color {
  (void)points;
  (void)color;
};
- (void)getX:(int *)x Y:(int *)y W:(unsigned int *)w H:(unsigned int *)h {
  NSRect frame = rectFlip([self->window frame]);
  frame = rectFlip(frame);

  if (parent) {
    frame.origin.x -= [parent->cocoa.real->window frame].origin.x;
    frame.origin.y += [parent->cocoa.real->window frame].origin.y;
  }

  *x = frame.origin.x;
  *y = frame.origin.y;

  *w = frame.size.width;
  *h = frame.size.height;
};
- (void)setX:(int)x Y:(int)y {
  NSRect frame = [self->window frame];

  frame.origin.x = x;
  frame.origin.y = y;

  frame = rectFlip(frame);

  if (parent) {
    double offset = 0;
    MilskoCocoaWindow *parentWindow = parent->cocoa.real->window;
    offset =
        [parentWindow frameRectForContentRect:[parentWindow frame]]
            .size.height -
        [parentWindow contentRectForFrameRect:[parentWindow frame]].size.height;

    frame.origin.x += [parentWindow frame].origin.x;
    frame.origin.y -= [parentWindow frame].origin.y - offset;
    frame.origin.y -= offset;
  }

  [self->view setFrameSize:frame.size];

  [self->window setFrameOrigin:frame.origin];

  [self forceRender];
};
- (void)setW:(int)w H:(int)h {
  NSRect frame = [self->window frame];
  frame.size.width = w;
  frame.size.height = h;

  self->rect = frame;

  [self->view setFrameSize:frame.size];
  [self->window setFrame:frame display:YES animate:false];
  [self forceRender];
};
- (int)pending {
  /*
    ok so this is a crime against god but I did in fact try the better method
    of using nextEventMatchingMask and then pumping events manually. However
    this gives me something that only kind of works, with strange behavior such
    as the window never becoming the main window (have to make it key in order
    for the menu to show up) occuring. Hours of research and digging led me down
    a rabbit hole that, on all sides, pointed to "just use [NSApplication run]".
    So we just to do that; of course, this is a blocking function, so we
    register this function that instantly cancels it and pumps whatever event
    MacOS has in store for us. We do this on loop and somehow the resulting CPU
    usage is managable.

    If some Apple developer with 20 years of experience in Objective C is here:
    Pls god send PR if you know how to properly do this.
*/
  [MilskoCocoa performSelectorOnMainThread:@selector(eventCanceller:)
                                withObject:self
                             waitUntilDone:NO];
  [self->application run];
  return 1;
};

+ (void)eventCanceller:(MilskoCocoa *)this {
  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
  NSEvent *event = [NSEvent otherEventWithType:NSApplicationDefined
                                      location:NSMakePoint(0, 0)
                                 modifierFlags:0
                                     timestamp:0
                                  windowNumber:0
                                       context:nil
                                       subtype:0
                                         data1:0
                                         data2:0];

  this->lastEvent = [this->window currentEvent];
  [this eventProcess:this->lastEvent];

  [NSApp postEvent:event atStart:YES];
  [pool release];

  [[NSApplication sharedApplication] stop:nil];
  usleep(1000);
}

- (void)getNextEvent {
  if (_forceRender) {
    MwLL h = [self->handle pointer];
    MwLLDispatch(h, draw, NULL);
    _forceRender = MwFALSE;
  }
  [self sendClipboardEvent];

  if (self->pointerLocked && [self->window isMainWindow] && self->lastEvent) {
    struct CGPoint pos;
    pos.x = [window frame].origin.x + [window frame].size.width / 2;
    pos.y = [window frame].origin.y + [window frame].size.height / 2;

    CGWarpMouseCursorPosition(pos);
  }

  [self->application updateWindows];
};

- (void)eventProcess:(NSEvent *)ev {
  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
  NSWindow *win = [ev window];
  MwLL h;
  MwBool doSendEvent = MwTRUE;

  if (!win) {
    [pool release];
    return;
  }

  if ([[[win contentView] subviews] count] == 0) {
    printf("no subviews on %p\n", win);
    [pool release];
    return;
  } else {
    h = [((MilskoFakePointer *)[[[win contentView] subviews]
        objectAtIndex:0]) pointer];
  }

  switch ([ev type]) {
  case NSLeftMouseDown:
  case NSRightMouseDown:
  case NSOtherMouseDown:
  case NSLeftMouseUp:
  case NSRightMouseUp:
  case NSOtherMouseUp: {
    [self handleMouseEvent:ev ll:h];
  }
  case NSLeftMouseDragged:
  case NSRightMouseDragged:
  case NSOtherMouseDragged:
  case NSMouseMoved: {
    MwPoint pos;
    NSPoint pos_translated = pointFlip([ev locationInWindow]);
    pos.x = pos_translated.x;
    pos.y = pos_translated.y;
    MwLLDispatch(h, move, &pos);
    break;
  }
  case NSMouseEntered:
    MwLLDispatch(h, focus_in, NULL);
    [self->cursor push];
    break;
  case NSMouseExited:
    MwLLDispatch(h, focus_out, NULL);
    [self->cursor pop];
    break;
  case NSKeyDown:
  case NSKeyUp: {
    [self handleKeyEvent:ev ll:h];
  }
  case NSCursorUpdate:
    [self->cursor set];
    break;
  case NSScrollWheel:
    break;
  default:
    /* mute bizarre "unknown subtype" errors that flood the console */
    if (ev.subtype > 8) {
      doSendEvent = false;
    }
    break;
  };
  if (doSendEvent) {
    [win sendEvent:ev];
  }
  [pool release];
}

- (void)handleMouseEvent:(NSEvent *)ev ll:(MwLL)ll {
  MwLLMouse mouse;
  MwBool isDown = MwTRUE;
  NSPoint mousePoint = pointFlip([ev locationInWindow]);
  MwLL this = [self->handle pointer];
  switch ([ev type]) {
  case NSLeftMouseUp:
    isDown = MwFALSE;
  case NSLeftMouseDown:
    mouse.button = MwLLMouseLeft;
    break;
  case NSRightMouseUp:
    isDown = MwFALSE;
  case NSRightMouseDown:
    mouse.button = MwLLMouseRight;
    break;
  case NSOtherMouseUp:
    isDown = MwFALSE;
  case NSOtherMouseDown:
    mouse.button = MwLLMouseMiddle;
    break;
  default:
    break;
  }
  mouse.point.x = mousePoint.x;
  mouse.point.y = mousePoint.y;

  if (isDown) {
    MwLLDispatch(ll, down, &mouse);
  } else {
    MwLLDispatch(ll, up, &mouse);
  }
}

- (void)handleKeyEvent:(NSEvent *)ev ll:(MwLL)ll {
  int ch;
  MwLL this = [self->handle pointer];
  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_Return = 0x24,
    kVK_Space = 0x31,
    kVK_Escape = 0x35,
    kVK_Shift = 0x38,
    kVK_Control = 0x3B,
    kVK_RightShift = 0x3C,
    kVK_RightControl = 0x3E,
    kVK_LeftArrow = 0x7B,
    kVK_RightArrow = 0x7C,
    kVK_DownArrow = 0x7D,
    kVK_UpArrow = 0x7E
  };
#define KEY_CASE(x, y)                                                         \
  case x:                                                                      \
    ch = y;                                                                    \
    break;
  switch ([ev keyCode]) {
    KEY_CASE(kVK_ANSI_A, 'a')
    KEY_CASE(kVK_ANSI_B, 'b')
    KEY_CASE(kVK_ANSI_C, 'c')
    KEY_CASE(kVK_ANSI_D, 'd')
    KEY_CASE(kVK_ANSI_E, 'e')
    KEY_CASE(kVK_ANSI_F, 'f')
    KEY_CASE(kVK_ANSI_G, 'g')
    KEY_CASE(kVK_ANSI_H, 'h')
    KEY_CASE(kVK_ANSI_I, 'i')
    KEY_CASE(kVK_ANSI_J, 'j')
    KEY_CASE(kVK_ANSI_K, 'k')
    KEY_CASE(kVK_ANSI_L, 'l')
    KEY_CASE(kVK_ANSI_M, 'm')
    KEY_CASE(kVK_ANSI_N, 'n')
    KEY_CASE(kVK_ANSI_O, 'o')
    KEY_CASE(kVK_ANSI_P, 'p')
    KEY_CASE(kVK_ANSI_Q, 'q')
    KEY_CASE(kVK_ANSI_R, 'r')
    KEY_CASE(kVK_ANSI_S, 's')
    KEY_CASE(kVK_ANSI_T, 't')
    KEY_CASE(kVK_ANSI_U, 'u')
    KEY_CASE(kVK_ANSI_V, 'v')
    KEY_CASE(kVK_ANSI_W, 'w')
    KEY_CASE(kVK_ANSI_X, 'x')
    KEY_CASE(kVK_ANSI_Y, 'y')
    KEY_CASE(kVK_ANSI_Z, 'z')
    KEY_CASE(kVK_ANSI_0, '0')
    KEY_CASE(kVK_ANSI_1, '1')
    KEY_CASE(kVK_ANSI_2, '2')
    KEY_CASE(kVK_ANSI_3, '3')
    KEY_CASE(kVK_ANSI_4, '4')
    KEY_CASE(kVK_ANSI_5, '5')
    KEY_CASE(kVK_ANSI_6, '6')
    KEY_CASE(kVK_ANSI_7, '7')
    KEY_CASE(kVK_ANSI_8, '8')
    KEY_CASE(kVK_ANSI_9, '9')
    KEY_CASE(kVK_ANSI_Quote, '\"')
    KEY_CASE(kVK_ANSI_Grave, '`')
    KEY_CASE(kVK_ANSI_Backslash, '/')
    KEY_CASE(kVK_ANSI_Comma, ',')
    KEY_CASE(kVK_ANSI_Equal, '=')
    KEY_CASE(kVK_Escape, MwLLKeyEscape)
    KEY_CASE(kVK_ANSI_LeftBracket, '[')
    KEY_CASE(kVK_ANSI_Minus, '-')
    KEY_CASE(kVK_ANSI_Period, '.')
    KEY_CASE(kVK_Return, MwLLKeyEnter)
    KEY_CASE(kVK_ANSI_RightBracket, ']')
    KEY_CASE(kVK_ANSI_Semicolon, ';')
    KEY_CASE(kVK_ANSI_Slash, '\\')
    KEY_CASE(kVK_Space, ' ')
    KEY_CASE(kVK_Control, MwLLKeyControl)
    KEY_CASE(kVK_RightControl, MwLLKeyControl)
    KEY_CASE(kVK_Shift, MwLLKeyLeftShift)
    KEY_CASE(kVK_RightShift, MwLLKeyRightShift)
    KEY_CASE(kVK_DownArrow, MwLLKeyDown)
    KEY_CASE(kVK_LeftArrow, MwLLKeyLeft)
    KEY_CASE(kVK_RightArrow, MwLLKeyRight)
    KEY_CASE(kVK_UpArrow, MwLLKeyUp)
  }
  switch ([ev type]) {
  case NSKeyDown:
    MwLLDispatch(this, key, &ch);
    MwLLDispatch(ll, key, &ch);
    break;
  case NSKeyUp:
    MwLLDispatch(this, key_released, &ch);
    MwLLDispatch(ll, key_released, &ch);
    break;
  default:
    break;
  }
}

- (void)sendClipboardEvent {
  /*NSAutoreleasePool* pool	      = [[NSAutoreleasePool alloc] init];
  NSPasteboard*	   pasteboard = [NSPasteboard generalPasteboard];
  NSArray*	   items      = @[
                 @"public.utf8-plain-text",
                 @"public.utf16-external-plain-text",
                 @"com.apple.traditional-mac-plain-text",
  ];
  MwLL this = self->handle.pointer;

  if([pasteboard canReadItemWithDataConformingToTypes:items]) {
          char*  data = NULL;
          size_t size = 0;
          for(NSPasteboardItem* item in [pasteboard pasteboardItems]) {
                  for(NSString* it in items) {
                          NSString* itemData = [item
  stringForType:(NSString*)it]; if(itemData != NULL) { if(strHash != 0 &&
  strHash != [itemData hash]) { char* text = malloc([itemData length]);
                                          strncpy(text, [itemData UTF8String],
  [itemData length]); MwLLDispatch(this, clipboard, text); printf("%s -> %p\n",
  text, this); free(text);
                                  }
                                  strHash = [itemData hash];
                          }
                  }
          }
  }

  [pool release];*/
}

- (void)setTitle:(const char *)title {
  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
  [self->window
      setTitleWithRepresentedFilename:[NSString stringWithUTF8String:title]];
  [pool release];
};
- (void)drawPixmap:(MwLLPixmap)pixmap rect:(MwRect *)_rect {
  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
  MilskoCocoaPixmap *p = pixmap->cocoa.real;
  NSGraphicsContext *ctx = [self->view context];
  if (ctx) {
    [NSGraphicsContext saveGraphicsState];
    [NSGraphicsContext setCurrentContext:ctx];

    [[p image]
        drawInRect:NSMakeRect(_rect->x, _rect->y, _rect->width, _rect->height)
          fromRect:NSZeroRect
         operation:NSCompositeSourceOver
          fraction:1.0];

    [NSGraphicsContext restoreGraphicsState];

    [self->view setNeedsDisplay:YES];
  }
  [pool release];
};
- (void)setIcon:(MwLLPixmap)pixmap {
  [self->application setApplicationIconImage:[pixmap->cocoa.real image]];
};
- (void)forceRender {
  self->_forceRender = MwTRUE;
  // NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
  // NSEvent *event = [NSEvent otherEventWithType:NSApplicationDefined
  //                                     location:NSMakePoint(0, 0)
  //                                modifierFlags:0
  //                                    timestamp:0
  //                                 windowNumber:0
  //                                      context:nil
  //                                      subtype:0
  //                                        data1:0
  //                                        data2:0];
  // [NSApp postEvent:event atStart:YES];
  // [pool release];
};
- (void)setCursor:(MwCursor *)image mask:(MwCursor *)mask {
  int y, x, ys, xs;
  unsigned char *di = malloc(image->width * image->height * 4);
  memset(di, 0, image->width * image->height * 4);

  if (self->cursorPixmap) {
    [self->cursorPixmap destroy];
  }
  self->cursorPixmap =
      [MilskoCocoaPixmap newWithWidth:image->width height:image->height];

  xs = -mask->x + image->x;
  ys = MwCursorDataHeight + mask->y;
  ys = MwCursorDataHeight + image->y - ys;

  for (y = 0; y < mask->height; y++) {
    unsigned int d = mask->data[y];
    for (x = mask->width - 1; x >= 0; x--) {
      int px = 0;
      int idx = ((y * mask->width) + x) * 4;

      if (d & 1) {
        di[idx + 3] = 255;
      };
      d = d >> 1;
    }
  }
  for (y = 0; y < image->height; y++) {
    unsigned int d = image->data[y];
    for (x = image->width - 1; x >= 0; x--) {
      int px = 0;
      int idx = ((y * image->width) + x) * 4;

      if (d & 1) {
        px = 255;
      };

      di[idx] = px;
      di[idx + 1] = px;
      di[idx + 2] = px;
      d = d >> 1;
    }
  }

  [self->cursorPixmap updateWithData:di];

  self->cursor = [[NSCursor alloc]
      initWithImage:[self->cursorPixmap image]
            hotSpot:NSMakePoint(image->x, image->y + image->height)];
  [self->cursor retain];

  [self->cursor pop];
  [self->cursor push];

  free(di);
};
- (void)detachWithPoint:(MwPoint *)point {
  [self->window setParentWindow:NULL];
};
- (void)show:(int)show {
  (void)show;
};
- (void)makePopupWithParent:(MwLL)_parent {
  (void)_parent;
};
- (void)setSizeHintsWithMinX:(int)minx
                        MinY:(int)miny
                        MaxX:(int)maxx
                        MaxY:(int)maxy {
  [self->window setMinSize:NSMakeSize(minx, miny)];
  [self->window setMaxSize:NSMakeSize(maxx, maxy)];
};
- (void)makeBorderless:(int)toggle {
  MwU32 mask = [self->window styleMask];
  if (toggle) {
    mask ^= NSBorderlessWindowMask;
    mask |= NSTitledWindowMask;
  } else {
    mask |= NSBorderlessWindowMask;
    mask ^= NSTitledWindowMask;
  }
  [self->window initWithContentRect:self->rect
                          styleMask:mask
                            backing:NSBackingStoreBuffered
                              defer:NO];
};
- (void)focus {
  [self->window makeMainWindow];
};
- (void)grabPointer:(int)toggle {
  self->pointerLocked = toggle;
};
- (void)setClipboard:(const char *)text {
  (void)text;
  // TODO: find out how to do this while supporting 10.4
  // NSAutoreleasePool* pool	      = [[NSAutoreleasePool alloc] init];
  // NSPasteboard*	   pasteboard = [NSPasteboard generalPasteboard];
  // [pasteboard declareTypes:[NSArray arrayWithObjects:NSPasteboardTypeString]
  // owner:nil]; [pasteboard setString:[NSString stringWithUTF8String:text]
  // forType:NSPasteboardTypeString]; [pool release];
};
- (void)makeToolWindow {
  /* If my understand of what a "tool window" usually is is correct then I
   * highly doubt the Mac OS has this and if they did they probably outright
   * removed it along time ago is this kind of conflicts with modern UX. So
   * we'll just make it borderless idgaf */
  [self makeBorderless:MwTRUE];
};
- (void)getCursorCoord:(MwPoint *)point {
  NSPoint p = [NSEvent mouseLocation];
  point->x = p.x;
  point->y = p.y;
};
- (void)getScreenSize:(MwRect *)_rect {
  NSScreen *screen = [self->window screen];
  _rect->x = [screen frame].origin.x;
  _rect->y = [screen frame].origin.y;
  _rect->width = [screen frame].size.width;
  _rect->height = [screen frame].size.height;
};
- (void)destroy {
  if (self->lastEvent) {
    [self->lastEvent release];
    [self->lastEvent dealloc];
  }
  [self->handle release];
  [self->handle dealloc];
  [self->window release];
  [self->window dealloc];
}

- (MwLL)getParent {
  return self->parent;
}

- (NSView *)getView {
  return view;
}
- (NSWindow *)getWindow {
  return window;
}

- (MilskoFakePointer *)getHandle {
  return handle;
}

@end

@implementation MilskoCocoaView
- (id)initWithFrame:(NSRect)frame {
  width = frame.size.width;
  height = frame.size.height;
  self = [super initWithFrame:frame];
  self->space = CGColorSpaceCreateDeviceRGB();

  if (width == 0 || height == 0) {
    self->rep = NULL;
    self->context = NULL;
  } else {
    [self initRepAndContextWithWidth:width Height:height];
  }

  return self;
}

- (NSGraphicsContext *)context {
  return self->context;
}

- (NSBitmapImageRep *)getRep {
  return self->rep;
}

- (void)drawRect:(NSRect)dirtyRect {
  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
  NSSize sz = [self->rep size];
  [super drawRect:dirtyRect];
  if (!self->rep) {
    if (dirtyRect.size.width && dirtyRect.size.height) {
      [self initRepAndContextWithWidth:dirtyRect.size.width
                                Height:dirtyRect.size.height];
      self->width = dirtyRect.size.width;
      self->height = dirtyRect.size.height;
    } else {
      [pool release];
      return;
    }
  }

  [self->rep drawInRect:NSMakeRect(0, 0, sz.width, sz.height)];

  [self->rep bitmapData];
  [pool release];
}

- (void)initRepAndContextWithWidth:(float)w Height:(float)h {
  self->rep =
      [[NSBitmapImageRep alloc] initWithBitmapDataPlanes:NULL
                                              pixelsWide:w
                                              pixelsHigh:h
                                           bitsPerSample:8
                                         samplesPerPixel:4
                                                hasAlpha:YES
                                                isPlanar:NO
                                          colorSpaceName:NSDeviceRGBColorSpace
                                             bytesPerRow:w * 4
                                            bitsPerPixel:32];
  assert(self->rep);
  [self->rep retain];

  self->context =
      [NSGraphicsContext graphicsContextWithBitmapImageRep:self->rep];
  assert(self->context);
  [self->context retain];
}

- (void)destroy {
  CGColorSpaceRelease(self->space);
  [self->rep release];
  [self->context release];
}

- (void)setFrameSize:(NSSize)newSize {
  [super setFrameSize:newSize];
  [self->rep setSize:newSize];

  self->width = newSize.width;
  self->height = newSize.height;
}

- (void)displayRect:(NSRect)rect {
  (void)rect;
};

- (BOOL)acceptsFirstResponder {
  return MwTRUE;
}
- (BOOL)performKeyEquivalent:(NSEvent *)event {
  (void)event;
  return MwTRUE;
}

@end

@implementation MilskoCocoaApplicationDelegate
- (MilskoCocoaApplicationDelegate *)initWithAppl:(NSApplication *)_appl {
  self->appl = _appl;
  return self;
}
- (void)applicationDidBecomeActive:(NSNotification *)notification {
  [self->appl activateIgnoringOtherApps:true];
  // printf("test\n");
}
- (void)applicationWillFinishLaunching:(NSNotification *)notification {
  // printf("test\n");
  // [self->appl activateIgnoringOtherApps:MwTRUE];
}
- (void)applicationDidFinishLaunching:(NSNotification *)notification {
  // [self->appl activateIgnoringOtherApps:MwTRUE];
}
@end

@implementation MilskoCocoaWindowDelegate

- (NSSize)windowWillResize:(NSWindow *)win toSize:(NSSize)frameSize;
{
  if ([[[win contentView] subviews] count] >= 1) {
    MilskoFakePointer *ptr = [[[win contentView] subviews] objectAtIndex:0];
    MwLL h = [ptr pointer];

    // MwLLDispatch(h, resize, NULL);
    MwLLDispatch(h, draw, NULL);
  }
  return frameSize;
}

- (void)windowDidBecomeMain:(NSNotification *)notification {
  if ([[[w contentView] subviews] count] != 0) {
    MwLL h = [((MilskoFakePointer *)[[[w contentView] subviews]
        objectAtIndex:0]) pointer];
    MwLLDispatch(h, focus_in, NULL);
  }
  [self->w makeKeyAndOrderFront:nil];
}

- (void)windowDidResize:(NSNotification *)notification {
  (void)notification;
}

// This will close/terminate the application when the main window is closed.
- (void)windowWillClose:(NSNotification *)notification {
  (void)notification;
  // MilskoCocoa *window = notification.object;
  // MwLL handle = [window getHandle].pointer;
  // MwLLDispatch(handle, close, NULL);
  [NSApp terminate:nil];
}

- (MilskoCocoaWindowDelegate *)initWithWin:(NSWindow *)win {
  self->w = win;
  return self;
}

@end

@implementation MilskoFakePointer
- (void)setPointer:(void *)pointer {
  [self setFrame:*(NSRect *)&pointer];
  self->ptr = pointer;
};
- (void *)pointer {
  return self->ptr;
};

- (void)drawRect:(NSRect)dirtyRect {
  /* explicitly do nothing */
  (void)dirtyRect;
}

- (void)destroy {
}
@end

@implementation MilskoCocoaWindow
- (BOOL)canBecomeKeyWindow {
  return true;
}
- (BOOL)canBecomeMainWindow {
  return true;
}
@end

static MwLL MwLLCreateImpl(MwLL parent, int x, int y, int width, int height) {
  MwLL r;
  (void)x;
  (void)y;
  (void)width;
  (void)height;

  r = malloc(sizeof(*r));

  MwLLCreateCommon(r);

  MilskoCocoa *o = [MilskoCocoa newWithParent:parent
                                            x:x
                                            y:y
                                        width:width
                                       height:height
                                       handle:r];
  r->cocoa.real = o;

  return r;
}

static void MwLLDestroyImpl(MwLL handle) {
  MilskoCocoa *h = handle->cocoa.real;

  [h destroy];

  MwLLDestroyCommon(handle);

  free(handle);
}

static void MwLLBeginDrawImpl(MwLL handle) { (void)handle; }

static void MwLLEndDrawImpl(MwLL handle) { (void)handle; }

static void MwLLPolygonImpl(MwLL handle, MwPoint *points, int points_count,
                            MwLLColor color) {
  MilskoCocoa *h = handle->cocoa.real;
  [h polygonWithPoints:points points_count:points_count color:color];
}

static void MwLLLineImpl(MwLL handle, MwPoint *points, MwLLColor color) {
  MilskoCocoa *h = handle->cocoa.real;
  [h lineWithPoints:points color:color];
}

static MwLLColor MwLLAllocColorImpl(MwLL handle, int r, int g, int b) {
  MwLLColor c = malloc(sizeof(*c));
  MwLLColorUpdate(handle, c, r, g, b);
  return c;
}

static void MwLLColorUpdateImpl(MwLL handle, MwLLColor c, int r, int g, int b) {
  (void)handle;

  c->common.red = r;
  c->common.green = g;
  c->common.blue = b;
}

static void MwLLGetXYWHImpl(MwLL handle, int *x, int *y, unsigned int *w,
                            unsigned int *height) {
  MilskoCocoa *h = handle->cocoa.real;
  [h getX:x Y:y W:w H:height];
}

static void MwLLSetXYImpl(MwLL handle, int x, int y) {
  MilskoCocoa *h = handle->cocoa.real;
  [h setX:x Y:y];
}

static void MwLLSetWHImpl(MwLL handle, int w, int height) {
  MilskoCocoa *h = handle->cocoa.real;
  [h setW:w H:height];
}

static void MwLLFreeColorImpl(MwLLColor color) { free(color); }

static int MwLLPendingImpl(MwLL handle) { return [handle->cocoa.real pending]; }

static void MwLLNextEventImpl(MwLL handle) {
  MilskoCocoa *h = handle->cocoa.real;
  [h getNextEvent];
}

static void MwLLSetTitleImpl(MwLL handle, const char *title) {
  MilskoCocoa *h = handle->cocoa.real;
  [h setTitle:title];
}

static MwLLPixmap MwLLCreatePixmapImpl(MwLL handle, unsigned char *data,
                                       int width, int height) {
  (void)handle;

  MwLLPixmap r = malloc(sizeof(*r));

  r->common.raw = malloc(4 * width * height);
  memcpy(r->common.raw, data, 4 * width * height);

  r->common.width = width;
  r->common.height = height;

  r->cocoa.real = [MilskoCocoaPixmap newWithWidth:width height:height];

  MwLLPixmapUpdate(r);
  free(r->common.raw);
  return r;
}

static void MwLLPixmapUpdateImpl(MwLLPixmap pixmap) {
  MilskoCocoaPixmap *p = pixmap->cocoa.real;
  [p updateWithData:pixmap->common.raw];
}

static void MwLLDestroyPixmapImpl(MwLLPixmap pixmap) {
  MilskoCocoaPixmap *p = pixmap->cocoa.real;
  [p destroy];
  [p dealloc];
  free(pixmap);
}

static void MwLLDrawPixmapImpl(MwLL handle, MwRect *rect, MwLLPixmap pixmap) {
  MilskoCocoa *h = handle->cocoa.real;
  [h drawPixmap:pixmap rect:rect];
  MwLLForceRender(handle);
}

static void MwLLSetIconImpl(MwLL handle, MwLLPixmap pixmap) {
  MilskoCocoa *h = handle->cocoa.real;
  [h setIcon:pixmap];
}

static void MwLLForceRenderImpl(MwLL handle) {
  MilskoCocoa *h = handle->cocoa.real;
  [h forceRender];
}

static void MwLLSetCursorImpl(MwLL handle, MwCursor *image, MwCursor *mask) {
  MilskoCocoa *h = handle->cocoa.real;
  [h setCursor:image mask:mask];
}

static void MwLLDetachImpl(MwLL handle, MwPoint *point) {
  MilskoCocoa *h = handle->cocoa.real;
  [h detachWithPoint:point];
}

static void MwLLShowImpl(MwLL handle, int show) {
  MilskoCocoa *h = handle->cocoa.real;
  [h show:show];
}

static void MwLLMakePopupImpl(MwLL handle, MwLL parent) {
  MilskoCocoa *h = handle->cocoa.real;
  [h makePopupWithParent:parent];
}

static void MwLLSetSizeHintsImpl(MwLL handle, int minx, int miny, int maxx,
                                 int maxy) {
  MilskoCocoa *h = handle->cocoa.real;
  [h setSizeHintsWithMinX:minx MinY:miny MaxX:maxx MaxY:maxy];
}

static void MwLLMakeBorderlessImpl(MwLL handle, int toggle) {
  MilskoCocoa *h = handle->cocoa.real;
  [h makeBorderless:toggle];
}

static void MwLLFocusImpl(MwLL handle) {
  MilskoCocoa *h = handle->cocoa.real;
  [h focus];
}

static void MwLLGrabPointerImpl(MwLL handle, int toggle) {
  MilskoCocoa *h = handle->cocoa.real;
  [h grabPointer:toggle];
}

static void MwLLSetClipboardImpl(MwLL handle, const char *text) {
  MilskoCocoa *h = handle->cocoa.real;
  [h setClipboard:text];
}

static void MwLLGetClipboardImpl(MwLL handle) { (void)handle; }

static void MwLLMakeToolWindowImpl(MwLL handle) {

  MilskoCocoa *h = handle->cocoa.real;
  [h makeToolWindow];
}

static void MwLLGetCursorCoordImpl(MwLL handle, MwPoint *point) {
  MilskoCocoa *h = handle->cocoa.real;
  [h getCursorCoord:point];
}

static void MwLLGetScreenSizeImpl(MwLL handle, MwRect *rect) {
  MilskoCocoa *h = handle->cocoa.real;
  [h getScreenSize:rect];
}

static void MwLLBeginStateChangeImpl(MwLL handle) { MwLLShow(handle, 0); }

static void MwLLEndStateChangeImpl(MwLL handle) { MwLLShow(handle, 1); }

static int MwLLCocoaCallInitImpl(void) { return 0; }

#include "call.c"
CALL(Cocoa);