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finish implementng hash methods for NSColor subclasses

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@28811 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-MacDonald 2009-10-12 15:57:59 +00:00
parent e1d905517e
commit 417d856f20
1 changed files with 45 additions and 0 deletions
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45
Source/NSColor.m
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@ -2361,6 +2361,27 @@ static NSRecursiveLock *namedColorLock = nil;
*alpha = _alpha_component;
}
- (NSUInteger) hash
{
union {
uint8_t bytes[sizeof(float)*5];
float floats[5];
} u;
NSUInteger h = 0;
unsigned i;
u.floats[0] = _cyan_component;
u.floats[1] = _magenta_component;
u.floats[2] = _yellow_component;
u.floats[3] = _black_component;
u.floats[4] = _alpha_component;
for (i = 0; i < sizeof(u); i++)
{
h = (h << 5) + h + u.bytes[i];
}
return h;
}
- (BOOL) isEqual: (id)other
{
if (other == self)
@ -2600,6 +2621,25 @@ static NSRecursiveLock *namedColorLock = nil;
*alpha = _alpha_component;
}
- (NSUInteger) hash
{
union {
uint8_t bytes[sizeof(float)*3];
float floats[3];
} u;
NSUInteger h = 0;
unsigned i;
u.floats[0] = _red_component;
u.floats[1] = _green_component;
u.floats[2] = _blue_component;
for (i = 0; i < sizeof(u); i++)
{
h = (h << 5) + h + u.bytes[i];
}
return h;
}
- (BOOL) isEqual: (id)other
{
if (other == self)
@ -3104,6 +3144,11 @@ static NSRecursiveLock *namedColorLock = nil;
return desc;
}
- (NSUInteger) hash
{
return [_pattern hash];
}
- (BOOL) isEqual: (id)other
{
if (other == self)