source/graphics/cocoa/cocoadisplay.m

   1 #import <AppKit/NSApplication.h>
   2 #import <Foundation/NSRunLoop.h>
   3 #include "cocoadisplay.h"
   4
   5 void convert_event(NSEvent *, CocoaEvent *);
   6
   7 struct _CocoaDisplay
   8 {
   9         NSApplication *app;
  10         CFMutableArrayRef event_queue;
  11 };
  12
  13 const void *copy_event(CFAllocatorRef, const void *);
  14 void free_event(CFAllocatorRef, const void *);
  15
  16 CocoaDisplay *create_display()
  17 {
  18         CocoaDisplay *display = (CocoaDisplay *)malloc(sizeof(CocoaDisplay));
  19         display->app = [NSApplication sharedApplication];
  20         // Since OS X 10.6
  21         //[display->app setActivationPolicy:NSApplicationActivationPolicyRegular];
  22         [display->app finishLaunching];
  23
  24         CFArrayCallBacks callbacks;
  25         callbacks.version = 0;
  26         callbacks.retain = copy_event;
  27         callbacks.release = free_event;
  28         callbacks.copyDescription = NULL;
  29         callbacks.equal = NULL;
  30         display->event_queue = CFArrayCreateMutable(NULL, 0, &callbacks);
  31
  32         return display;
  33 }
  34
  35 void destroy_display(CocoaDisplay *display)
  36 {
  37         CFRelease(display->event_queue);
  38         free(display);
  39 }
  40
  41 void queue_event(CocoaDisplay *display, CocoaEvent *event)
  42 {
  43         CFArrayAppendValue(display->event_queue, event);
  44 }
  45
  46 bool get_event(CocoaDisplay *display, CocoaEvent *buf)
  47 {
  48         if(CFArrayGetCount(display->event_queue))
  49         {
  50                 *buf = *(const CocoaEvent *)CFArrayGetValueAtIndex(display->event_queue, 0);
  51                 CFArrayRemoveValueAtIndex(display->event_queue, 0);
  52                 return true;
  53         }
  54
  55         NSEvent *event = [display->app nextEventMatchingMask:NSAnyEventMask untilDate:nil inMode:NSDefaultRunLoopMode dequeue:YES];
  56         if(event)
  57         {
  58                 [display->app sendEvent:event];
  59                 convert_event(event, buf);
  60                 return true;
  61         }
  62
  63         return false;
  64 }
  65
  66 const void *copy_event(CFAllocatorRef allocator, const void *event)
  67 {
  68         void *copy = CFAllocatorAllocate(allocator, sizeof(CocoaEvent), 0);
  69         memcpy(copy, event, sizeof(CocoaEvent));
  70         return copy;
  71 }
  72
  73 void free_event(CFAllocatorRef allocator, const void *event)
  74 {
  75         CFAllocatorDeallocate(allocator, (void *)event);
  76 }