//*****************************************************************************
//      絵文字を一画面分描画
//*****************************************************************************
void DrawEmoji(const int page) {
    const static u16 CodeList[][2] = {          // 絵文字のコード
        {0xe001,0xe05a},
        {0xe101,0xe15a},
        {0xe201,0xe253},
        {0xe301,0xe34d},
        {0xe401,0xe44c},
        {0xe501,0xe537},
    } ;

    CGRect ViewRect = [[UIScreen mainScreen] bounds] ;
    CGContextRef ctx = UIGraphicsGetCurrentContext() ;
    BOOL HighReso = [UIScreen mainScreen].scale == 1.f ? NO : YES ;

    if(!HighReso) {
        ViewRect.size.width  /= 2.f ;
        ViewRect.size.height /= 2.f ;
    }

    CGContextSetRGBFillColor(ctx,0.f,0.f,0.f,0.f) ;
    CGContextFillRect(ctx,ViewRect) ;
    CGAffineTransform tr = HighReso ?
        CGAffineTransformMakeScale(2.f,2.f) : CGAffineTransformMakeScale(1.f,1.f) ;
    CGContextSaveGState(ctx) ;
    CGContextConcatCTM(ctx,tr) ;

    for(u16 code = CodeList[page][0] ; code <= CodeList[page][1] ; ++ code) {
        char str[8] ;
        sprintf(str,"%c%c",code & 0xff,code >> 8) ;
        float x = ((code & 0xff) % 8) * 20.f - 1.f ;
        float y = ((code & 0xff) / 8) * 20.f - 1.f ;

        [
            [
                [NSString alloc]
                initWithCharactersNoCopy:(unichar *)str
                length:1
                freeWhenDone:NO
            ]
            drawAtPoint:CGPointMake(x,y)
            withFont:[UIFont systemFontOfSize:20]
        ] ;
    }

    CGContextRestoreGState(ctx) ;
}
//*****************************************************************************
//      描画時に呼ばれる
//*****************************************************************************
@implementation EmojiView
- (void)drawRect:(CGRect)rect {
    DrawEmoji(0) ;
}
@end