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//
// FontAwesome.m
// FontAwesomeTools-iOS is Copyright 2013 TapTemplate and released under the MIT license.
// www.taptemplate.com
//
#import "IconFont.h"
#import <CoreText/CoreText.h>
@implementation IconFont
//================================
// Font and Label Methods
//================================
+ (void)registerIconFontWithURL:(NSURL *)url
{
NSAssert([[NSFileManager defaultManager] fileExistsAtPath:[url path]], @"Font file doesn't exist");
CGDataProviderRef fontDataProvider = CGDataProviderCreateWithURL((__bridge CFURLRef)url);
CGFontRef newFont = CGFontCreateWithDataProvider(fontDataProvider);
CGDataProviderRelease(fontDataProvider);
CFErrorRef error;
CTFontManagerRegisterGraphicsFont(newFont, &error);
CGFontRelease(newFont);
}
+(void)logFontList{
NSArray *familyNames = [UIFont familyNames];
NSArray *fontNames;
NSInteger indFamily, indFont;
for (indFamily=0; indFamily<[familyNames count]; ++indFamily)
{
NSLog(@"TTIFont Index:%d Family name: %@",indFamily, [familyNames objectAtIndex:indFamily]);
fontNames = [UIFont fontNamesForFamilyName:
[familyNames objectAtIndex:indFamily]];
for (indFont=0; indFont<[fontNames count]; ++indFont)
{
NSLog(@" Font name: %@", [fontNames objectAtIndex:indFont]);
}
}
}
+(void)loadFontList{
NSDictionary *fontDict = [self dictionaryFromResource:@"fontIconConfig.json"];
NSArray *fontList = [fontDict allValues];
#ifndef DISABLE_FOUNDATIONICONS_AUTO_REGISTRATION
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
for (NSDictionary *resDict in fontList) {
[self registerFontWithDict:resDict];
}
});
#endif
}
+(void)registerFontWithDict:(NSDictionary*)resDict{
NSString * resName = [resDict objectForKey:@"ttf"];
NSString * extension = [resName pathExtension];
NSString * fullName = [resName substringToIndex:(resName.length - extension.length - 1)];
[self registerIconFontWithURL: [[NSBundle mainBundle] URLForResource:fullName withExtension:extension]];
}
+(NSString *)icon:(NSString *)iconName fromFont:(NSString *)fontName{
[self loadFontList];
NSDictionary *fontDict = [self dictionaryFromResource:@"fontIconConfig.json"];
NSString *json = [[fontDict objectForKey:fontName] objectForKey:@"json"];
NSDictionary *dict = [self dictionaryFromResource:json];
NSString *icon = nil;
if([dict objectForKey:iconName]){
icon = [dict objectForKey:iconName];
}
return icon;
}
+ (NSDictionary *)dictionaryFromResource:(NSString *)resName{
NSString * extension = [resName pathExtension];
NSString * fullName = [resName substringToIndex:(resName.length - extension.length - 1)];
NSString * path = [[NSBundle mainBundle] pathForResource:fullName ofType:extension];
NSData *data = [NSData dataWithContentsOfFile:path];
NSError * error = nil;
NSObject * obj = [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];
if ( obj && [obj isKindOfClass:[NSDictionary class]])
{
return (NSDictionary *)obj;
}else{
return nil;
}
}
+ (UIFont*)font:(NSString *)fontName withSize:(CGFloat)size
{
return [UIFont fontWithName:fontName size:size];
}
+ (UILabel*)labelWithIcon:(NSString*)fa_icon
fontName:(NSString *)name
size:(CGFloat)size
color:(UIColor*)color
{
UILabel *label = [[UILabel alloc] init];
[IconFont label:label fontName:name setIcon:fa_icon size:size color:color sizeToFit:YES];
return label;
}
+ (void)label:(UILabel*)label
fontName:(NSString *)name
setIcon:(NSString*)fa_icon
size:(CGFloat)size
color:(UIColor*)color
sizeToFit:(BOOL)shouldSizeToFit
{
label.font = [IconFont font:name withSize:size];
label.text = fa_icon;
label.textColor = color;
label.backgroundColor = [UIColor clearColor];
if (shouldSizeToFit) {
[label sizeToFit];
}
// NOTE: FontAwesome icons will be silent through VoiceOver, but the Label is still selectable through VoiceOver. This can cause a usability issue because a visually impaired user might navigate to the label but get no audible feedback that the navigation happened. So hide the label for VoiceOver by default - if your label should be descriptive, un-hide it explicitly after creating it, and then set its accessibiltyLabel.
label.accessibilityElementsHidden = YES;
}
+ (UIButton*)buttonWithIcon:(NSString*)fa_icon
fontName:(NSString *)name
size:(CGFloat)size
color:(UIColor*)color
{
UIButton *button = [[UIButton alloc] init];
[IconFont button:button fontName:name setIcon:fa_icon size:size color:color];
return button;
}
+ (void)button:(UIButton *)button
fontName:(NSString *)name
setIcon:(NSString*)fa_icon
size:(CGFloat)size
color:(UIColor*)color
{
button.titleLabel.font = [IconFont font:name withSize:size];
[button setTitle:fa_icon forState:UIControlStateNormal];
[button setTitle:fa_icon forState:UIControlStateSelected];
[button setTitleColor:color forState:UIControlStateNormal];
[button sizeToFit];
}
//================================
// Image Methods
//================================
+ (UIImage*)imageWithIcon:(NSString*)fa_icon
fontName:(NSString *)name
iconColor:(UIColor*)iconColor
iconSize:(CGFloat)iconSize
{
return [IconFont imageWithIcon:fa_icon
fontName:(NSString *)name
iconColor:iconColor
iconSize:iconSize
imageSize:CGSizeMake(iconSize, iconSize)];
}
+ (UIImage*)imageWithIcon:(NSString*)fa_icon
fontName:(NSString *)name
iconColor:(UIColor*)iconColor
iconSize:(CGFloat)iconSize
imageSize:(CGSize)imageSize;
{
NSAssert(fa_icon, @"You must specify an icon from font-awesome-codes.h.");
return [self imageWithText:fa_icon
font:[IconFont font:name withSize:iconSize]
iconColor:iconColor
imageSize:imageSize];
}
+ (UIImage*)imageWithText:(NSString*)characterCodeString
font:(UIFont*)font
iconColor:(UIColor*)iconColor
imageSize:(CGSize)imageSize;
{
NSAssert(characterCodeString, @"You must specify a character code, such as \\uf190.");
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 6) {
if (!iconColor) { iconColor = [UIColor blackColor]; }
UIGraphicsBeginImageContextWithOptions(imageSize, NO, 0.0);
NSAttributedString* attString = [[NSAttributedString alloc]
initWithString:characterCodeString
attributes:@{NSFontAttributeName: font,
NSForegroundColorAttributeName : iconColor}];
// get the target bounding rect in order to center the icon within the UIImage:
NSStringDrawingContext *ctx = [[NSStringDrawingContext alloc] init];
CGRect boundingRect = [attString boundingRectWithSize:CGSizeMake(font.pointSize, font.pointSize) options:0 context:ctx];
// draw the icon string into the image:
[attString drawInRect:CGRectMake((imageSize.width/2.0f) - boundingRect.size.width/2.0f,
(imageSize.height/2.0f) - boundingRect.size.height/2.0f,
imageSize.width,
imageSize.height)];
UIImage *iconImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return iconImage;
} else {
#if DEBUG
NSLog(@" [ FontAwesomeTools ] Using lower-res iOS 5-compatible image rendering.");
#endif
UILabel *iconLabel = [IconFont labelWithIcon:characterCodeString fontName:font.fontName size:font.pointSize color:iconColor];
UIImage *iconImage = nil;
UIGraphicsBeginImageContextWithOptions(imageSize, NO, 1.0);
{
CGContextRef imageContext = UIGraphicsGetCurrentContext();
if (imageContext != NULL) {
UIGraphicsPushContext(imageContext);
{
CGContextTranslateCTM(imageContext,
(imageSize.width/2.0f) - iconLabel.frame.size.width/2.0f,
(imageSize.height/2.0f) - iconLabel.frame.size.height/2.0f);
[[iconLabel layer] renderInContext: imageContext];
}
UIGraphicsPopContext();
}
iconImage = UIGraphicsGetImageFromCurrentImageContext();
}
UIGraphicsEndImageContext();
return iconImage;
}
}
// DEPRECATED - Instead use +imageWithIcon:iconColor:iconSize:
+ (UIImage*)imageWithIcon:(NSString*)fa_icon fontName:(NSString *)name size:(CGFloat)size color:(UIColor*)color
{
return [IconFont imageWithIcon:fa_icon fontName:name iconColor:color iconSize:size imageSize:CGSizeMake(size, size)];
}
@end
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