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   1 //
   2 //  EAGLView.m
   3 //  FreeFlight
   4 //
   5 //  Created by Frédéric D'HAEYER on 16/10/09.
   6 //  Copyright Parrot SA 2009. All rights reserved.
   7 //
   8 #import "EAGLView.h"
   9 #import "ES1Renderer.h"
  10
  11 @implementation EAGLView
  12 @synthesize animating;
  13 @dynamic animationFrameInterval;
  14
  15 // You must implement this method
  16 + (Class) layerClass
  17 {
  18     return [CAEAGLLayer class];
  19 }
  20
  21 //The GL view is stored in the nib file. When it's unarchived it's sent -initWithCoder:
  22 //- (id) initWithCoder:(NSCoder*)coder
  23 //{
  24 //    if ((self = [super initWithCoder:coder]))
  25 - (id)initWithFrame:(CGRect)frame
  26 {
  27         if ((self = [super initWithFrame: frame]))
  28         {
  29         // Get the layer
  30         CAEAGLLayer *eaglLayer = (CAEAGLLayer *)self.layer;
  31
  32         eaglLayer.opaque = NO;
  33         eaglLayer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys:
  34                                         [NSNumber numberWithBool:FALSE], kEAGLDrawablePropertyRetainedBacking, kEAGLColorFormatRGBA8, kEAGLDrawablePropertyColorFormat, nil];
  35
  36                 drone = nil;
  37                 renderer = [[ES1Renderer alloc] init];
  38
  39                 if (!renderer)
  40                 {
  41                         [self release];
  42                         return nil;
  43                 }
  44
  45                 animating = FALSE;
  46                 animationFrameInterval = 2; // is 2 * (1 / 60) = 1 / 30 <=> 30 fps
  47                 animationTimer = nil;
  48         }
  49
  50     return self;
  51 }
  52
  53 - (void) setDrone:(ARDrone*)_drone
  54 {
  55         drone = _drone;
  56 }
  57
  58 - (void) drawView
  59 {
  60         [renderer render:drone];
  61 }
  62
  63 - (void) layoutSubviews
  64 {
  65         [renderer resizeFromLayer:(CAEAGLLayer*)self.layer];
  66     [self drawView];
  67 }
  68
  69 - (NSInteger) animationFrameInterval
  70 {
  71         return animationFrameInterval;
  72 }
  73
  74 - (void)changeState:(BOOL)inGame
  75 {
  76         if(inGame)
  77         {
  78                 self.hidden = NO;
  79                 if(!animating)
  80                 {
  81                         animationTimer = [NSTimer scheduledTimerWithTimeInterval:(NSTimeInterval)((1.0 / 60.0) * animationFrameInterval) target:self selector:@selector(drawView) userInfo:nil repeats:TRUE];
  82                         animating = TRUE;
  83                 }
  84         }
  85         else
  86         {
  87                 self.hidden = YES;
  88                 if (animating)
  89                 {
  90                         [animationTimer invalidate];
  91                         animationTimer = nil;
  92                         animating = FALSE;
  93                 }
  94         }
  95 }
  96
  97 - (void) dealloc
  98 {
  99     [renderer release];
 100
 101     [super dealloc];
 102 }
 103
 104 @end