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* file.
*/
#include "config.h"
#import "OFColor.h"
#import "OFOnce.h"
#import "OFInvalidArgumentException.h"
@implementation OFColor
#define PREDEFINED_COLOR(name, redValue, greenValue, blueValue) \
static OFColor *name##Color = nil; \
\
static void \
initPredefinedColor_##name(void) \
{ \
name##Color = [[OFColor alloc] initWithRed: redValue \
green: greenValue \
blue: blueValue \
alpha: 1]; \
} \
\
+ (OFColor *)name \
{ \
static OFOnceControl onceControl = OFOnceControlInitValue; \
OFOnce(&onceControl, initPredefinedColor_##name); \
\
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* file.
*/
#include "config.h"
#import "OFColor.h"
#import "OFOnce.h"
#import "OFString.h"
#import "OFInvalidArgumentException.h"
@interface OFColor ()
+ (instancetype)of_alloc;
@end
@interface OFColorSingleton: OFColor
@end
@interface OFColorPlaceholder: OFColorSingleton
@end
#ifdef OF_OBJFW_RUNTIME
@interface OFTaggedPointerColor: OFColorSingleton
@end
#endif
static struct {
Class isa;
} placeholder;
#ifdef OF_OBJFW_RUNTIME
static int colorTag;
#endif
@implementation OFColorSingleton
- (instancetype)autorelease
{
return self;
}
- (instancetype)retain
{
return self;
}
- (void)release
{
}
- (unsigned int)retainCount
{
return OFMaxRetainCount;
}
@end
@implementation OFColorPlaceholder
- (instancetype)initWithRed: (float)red
green: (float)green
blue: (float)blue
alpha: (float)alpha
{
#ifdef OF_OBJFW_RUNTIME
uint8_t redInt = red * 255;
uint8_t greenInt = green * 255;
uint8_t blueInt = blue * 255;
if (red * 255 == redInt && green * 255 == greenInt &&
blue * 255 == blueInt && alpha == 1) {
id ret = objc_createTaggedPointer(colorTag,
(uintptr_t)redInt << 16 | (uintptr_t)greenInt << 8 |
(uintptr_t)blueInt);
if (ret != nil)
return ret;
}
#endif
return (id)[[OFColor of_alloc] initWithRed: red
green: green
blue: blue
alpha: alpha];
}
@end
#ifdef OF_OBJFW_RUNTIME
@implementation OFTaggedPointerColor
- (void)getRed: (float *)red
green: (float *)green
blue: (float *)blue
alpha: (float *)alpha
{
uintptr_t value = object_getTaggedPointerValue(self);
*red = (float)(value >> 16) / 255;
*green = (float)((value >> 8) & 0xFF) / 255;
*blue = (float)(value & 0xFF) / 255;
if (alpha != NULL)
*alpha = 1;
}
@end
#endif
@implementation OFColor
+ (void)initialize
{
if (self != [OFColor class])
return;
placeholder.isa = [OFColorPlaceholder class];
#ifdef OF_OBJFW_RUNTIME
colorTag =
objc_registerTaggedPointerClass([OFTaggedPointerColor class]);
#endif
}
+ (instancetype)of_alloc
{
return [super alloc];
}
+ (instancetype)alloc
{
if (self == [OFColor class])
return (id)&placeholder;
return [super alloc];
}
#define PREDEFINED_COLOR(name, redValue, greenValue, blueValue) \
static OFColor *name##Color = nil; \
\
static void \
initPredefinedColor_##name(void) \
{ \
name##Color = [[OFColorSingleton alloc] \
initWithRed: redValue \
green: greenValue \
blue: blueValue \
alpha: 1]; \
} \
\
+ (OFColor *)name \
{ \
static OFOnceControl onceControl = OFOnceControlInitValue; \
OFOnce(&onceControl, initPredefinedColor_##name); \
\
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*red = _red;
*green = _green;
*blue = _blue;
if (alpha != NULL)
*alpha = _alpha;
}
@end
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*red = _red;
*green = _green;
*blue = _blue;
if (alpha != NULL)
*alpha = _alpha;
}
- (OFString *)description
{
float red, green, blue, alpha;
[self getRed: &red green: &green blue: &blue alpha: &alpha];
return [OFString stringWithFormat:
@"<OFColor red=%f green=%f blue=%f alpha=%f>",
red, green, blue, alpha];
}
@end
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