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Add support for alpha value in colorWithHexString #16

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Add support for alpha value in colorWithHexString #16

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13 changes: 11 additions & 2 deletions Source/VSTheme.m
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Original file line number Diff line number Diff line change
Expand Up @@ -271,16 +271,25 @@ static BOOL stringIsEmpty(NSString *s) {

NSMutableString *s = [hexString mutableCopy];
[s replaceOccurrencesOfString:@"#" withString:@"" options:0 range:NSMakeRange(0, [hexString length])];

if ([s length] == 6)
{
s = [[s stringByAppendingString:@"ff"] mutableCopy];
}

CFStringTrimWhitespace((__bridge CFMutableStringRef)s);

NSString *redString = [s substringToIndex:2];
NSString *greenString = [s substringWithRange:NSMakeRange(2, 2)];
NSString *blueString = [s substringWithRange:NSMakeRange(4, 2)];
NSString *alphaString = [s substringWithRange:NSMakeRange(6,2)];

unsigned int red = 0, green = 0, blue = 0;
unsigned int red = 0, green = 0, blue = 0, alpha = 0;
[[NSScanner scannerWithString:redString] scanHexInt:&red];
[[NSScanner scannerWithString:greenString] scanHexInt:&green];
[[NSScanner scannerWithString:blueString] scanHexInt:&blue];
[[NSScanner scannerWithString:alphaString] scanHexInt:&alpha];

return [UIColor colorWithRed:(CGFloat)red/255.0f green:(CGFloat)green/255.0f blue:(CGFloat)blue/255.0f alpha:1.0f];
return [UIColor colorWithRed:(CGFloat)red/255.0f green:(CGFloat)green/255.0f blue:(CGFloat)blue/255.0f alpha:(CGFloat)alpha/255.0f];
}