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UIColor+BeeExtension

2016-01-28 10:34 555 查看
//
//	 ______    ______    ______
//	/\  __ \  /\  ___\  /\  ___\
//	\ \  __<  \ \  __\_ \ \  __\_
//	 \ \_____\ \ \_____\ \ \_____\
//	  \/_____/  \/_____/  \/_____/
//
//
//	Copyright (c) 2014-2015, Geek Zoo Studio
// http://www.bee-framework.com //
//
//	Permission is hereby granted, free of charge, to any person obtaining a
//	copy of this software and associated documentation files (the "Software"),
//	to deal in the Software without restriction, including without limitation
//	the rights to use, copy, modify, merge, publish, distribute, sublicense,
//	and/or sell copies of the Software, and to permit persons to whom the
//	Software is furnished to do so, subject to the following conditions:
//
//	The above copyright notice and this permission notice shall be included in
//	all copies or substantial portions of the Software.
//
//	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
//	FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
//	IN THE SOFTWARE.
//

#if (TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR)

#import "Bee_Precompile.h"
#import "Bee_Foundation.h"

#pragma mark -

#undef	RGB
#define RGB(R,G,B)		[UIColor colorWithRed:R/255.0f green:G/255.0f blue:B/255.0f alpha:1.0f]

#undef	RGBA
#define RGBA(R,G,B,A)	[UIColor colorWithRed:R/255.0f green:G/255.0f blue:B/255.0f alpha:A]

#undef	HEX_RGB
#define HEX_RGB(V)		[UIColor fromHexValue:V]

#undef	HEX_RGBA
#define HEX_RGBA(V, A)	[UIColor fromHexValue:V alpha:A]

#undef	SHORT_RGB
#define SHORT_RGB(V)	[UIColor fromShortHexValue:V]  // self.view.backgroundColor = SHORT_RGB( 0x333 );

#pragma mark -

@interface UIColor(Theme)

+ (UIColor *)fromHexValue:(NSUInteger)hex;
+ (UIColor *)fromHexValue:(NSUInteger)hex alpha:(CGFloat)alpha;

+ (UIColor *)fromShortHexValue:(NSUInteger)hex;
+ (UIColor *)fromShortHexValue:(NSUInteger)hex alpha:(CGFloat)alpha;

+ (UIColor *)colorWithString:(NSString *)string; // {#FFF|#FFFFFF|#FFFFFFFF}{,0.6}

@end

#endif	// #if (TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR)


//
//	 ______    ______    ______
//	/\  __ \  /\  ___\  /\  ___\
//	\ \  __<  \ \  __\_ \ \  __\_
//	 \ \_____\ \ \_____\ \ \_____\
//	  \/_____/  \/_____/  \/_____/
//
//
//	Copyright (c) 2014-2015, Geek Zoo Studio
// http://www.bee-framework.com //
//
//	Permission is hereby granted, free of charge, to any person obtaining a
//	copy of this software and associated documentation files (the "Software"),
//	to deal in the Software without restriction, including without limitation
//	the rights to use, copy, modify, merge, publish, distribute, sublicense,
//	and/or sell copies of the Software, and to permit persons to whom the
//	Software is furnished to do so, subject to the following conditions:
//
//	The above copyright notice and this permission notice shall be included in
//	all copies or substantial portions of the Software.
//
//	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
//	FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
//	IN THE SOFTWARE.
//

#if (TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR)

#import "UIColor+BeeExtension.h"
#import "NSString+BeeExtension.h"

#pragma mark -

@implementation UIColor(Theme)

+ (UIColor *)fromHexValue:(NSUInteger)hex
{
NSUInteger a = ((hex >> 24) & 0x000000FF);
float fa = ((0 == a) ? 1.0f : (a * 1.0f) / 255.0f);

return [UIColor fromHexValue:hex alpha:fa];
}

+ (UIColor *)fromHexValue:(NSUInteger)hex alpha:(CGFloat)alpha
{
if ( hex == 0xECE8E3 ) {

}
NSUInteger r = ((hex >> 16) & 0x000000FF);
NSUInteger g = ((hex >> 8) & 0x000000FF);
NSUInteger b = ((hex >> 0) & 0x000000FF);

float fr = (r * 1.0f) / 255.0f;
float fg = (g * 1.0f) / 255.0f;
float fb = (b * 1.0f) / 255.0f;

return [UIColor colorWithRed:fr green:fg blue:fb alpha:alpha];
}

+ (UIColor *)fromShortHexValue:(NSUInteger)hex
{
return [UIColor fromShortHexValue:hex alpha:1.0f];
}

+ (UIColor *)fromShortHexValue:(NSUInteger)hex alpha:(CGFloat)alpha
{
NSUInteger r = ((hex >> 8) & 0x0000000F);
NSUInteger g = ((hex >> 4) & 0x0000000F);
NSUInteger b = ((hex >> 0) & 0x0000000F);

float fr = (r * 1.0f) / 15.0f;
float fg = (g * 1.0f) / 15.0f;
float fb = (b * 1.0f) / 15.0f;

return [UIColor colorWithRed:fr green:fg blue:fb alpha:alpha];
}

+ (UIColor *)colorWithString:(NSString *)string
{
if ( nil == string || 0 == string.length )
return nil;

string = string.trim;

if ( [string hasPrefix:@"rgb("] && [string hasSuffix:@")"] )
{
string = [string substringWithRange:NSMakeRange(4, string.length - 5)];
if ( string && string.length )
{
NSArray * elems = [string componentsSeparatedByString:@","];
if ( elems && elems.count == 3 )
{
NSInteger r = [[elems objectAtIndex:0] integerValue];
NSInteger g = [[elems objectAtIndex:1] integerValue];
NSInteger b = [[elems objectAtIndex:2] integerValue];

return [UIColor colorWithRed:(r * 1.0f / 255.0f) green:(g * 1.0f / 255.0f) blue:(b * 1.0f / 255.0f) alpha:1.0f];
}
}
}

NSArray *	array = [string componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
NSString *	color = [array objectAtIndex:0];
CGFloat		alpha = 1.0f;

if ( array.count == 2 )
{
alpha = [[array objectAtIndex:1] floatValue];
}

if ( [color hasPrefix:@"#"] ) // #FFF
{
color = [color substringFromIndex:1];

if ( color.length == 3 )
{
NSUInteger hexRGB = strtol(color.UTF8String , nil, 16);
return [UIColor fromShortHexValue:hexRGB alpha:alpha];
}
else if ( color.length == 6 )
{
NSUInteger hexRGB = strtol(color.UTF8String , nil, 16);
return [UIColor fromHexValue:hexRGB alpha:alpha];
}
}
else if ( [color hasPrefix:@"0x"] || [color hasPrefix:@"0X"] ) // #FFF
{
color = [color substringFromIndex:2];

if ( color.length == 8 )
{
NSUInteger hexRGB = strtol(color.UTF8String , nil, 16);
return [UIColor fromHexValue:hexRGB];
}
else if ( color.length == 6 )
{
NSUInteger hexRGB = strtol(color.UTF8String , nil, 16);
return [UIColor fromHexValue:hexRGB alpha:1.0f];
}
}
else
{
static NSMutableDictionary * __colors = nil;

if ( nil == __colors )
{
__colors = [[NSMutableDictionary alloc] init];
[__colors setObject:[UIColor clearColor]		forKey:@"clear"];
[__colors setObject:[UIColor clearColor]		forKey:@"transparent"];
[__colors setObject:[UIColor redColor]			forKey:@"red"];
[__colors setObject:[UIColor blackColor]		forKey:@"black"];
[__colors setObject:[UIColor darkGrayColor]		forKey:@"darkgray"];
[__colors setObject:[UIColor lightGrayColor]	forKey:@"lightgray"];
[__colors setObject:[UIColor whiteColor]		forKey:@"white"];
[__colors setObject:[UIColor grayColor]			forKey:@"gray"];
[__colors setObject:[UIColor greenColor]		forKey:@"green"];
[__colors setObject:[UIColor blueColor]			forKey:@"blue"];
[__colors setObject:[UIColor cyanColor]			forKey:@"cyan"];
[__colors setObject:[UIColor yellowColor]		forKey:@"yellow"];
[__colors setObject:[UIColor magentaColor]		forKey:@"magenta"];
[__colors setObject:[UIColor orangeColor]		forKey:@"orange"];
[__colors setObject:[UIColor purpleColor]		forKey:@"purple"];
[__colors setObject:[UIColor brownColor]		forKey:@"brown"];
}

UIColor * result = [__colors objectForKey:color.lowercaseString];
if ( result )
{
return [result colorWithAlphaComponent:alpha];
}
}

return nil;
}

@end

#endif	// #if (TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR)
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