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+//
+//  FontManager.m
+//  FontLabel
+//
+//  Created by Kevin Ballard on 5/5/09.
+//  Copyright © 2009 Zynga Game Networks
+//
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#import "FontManager.h"
+#import "ZFont.h"
+
+static FontManager *sharedFontManager = nil;
+
+@implementation FontManager
++ (FontManager *)sharedManager {
+        @synchronized(self) {
+                if (sharedFontManager == nil) {
+                        sharedFontManager = [[self alloc] init];
+                }
+        }
+        return sharedFontManager;
+}
+
+- (id)init {
+        if ((self = [super init])) {
+                fonts = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
+                urls = [[NSMutableDictionary alloc] init];
+        }
+        return self;
+}
+
+- (BOOL)loadFont:(NSString *)filename {
+        NSString *fontPath = [[NSBundle mainBundle] pathForResource:filename ofType:@"ttf"];
+        if (fontPath == nil) {
+                fontPath = [[NSBundle mainBundle] pathForResource:filename ofType:nil];
+        }
+        if (fontPath == nil) return NO;
+        
+        NSURL *url = [NSURL fileURLWithPath:fontPath];
+        if ([self loadFontURL:url]) {
+                [urls setObject:url forKey:filename];
+                return YES;
+        }
+        return NO;
+}
+
+- (BOOL)loadFontURL:(NSURL *)url {
+        CGDataProviderRef fontDataProvider = CGDataProviderCreateWithURL((CFURLRef)url);
+        if (fontDataProvider == NULL) return NO;
+        CGFontRef newFont = CGFontCreateWithDataProvider(fontDataProvider); 
+        CGDataProviderRelease(fontDataProvider); 
+        if (newFont == NULL) return NO;
+        
+        CFDictionarySetValue(fonts, url, newFont);
+        CGFontRelease(newFont);
+        return YES;
+}
+
+- (CGFontRef)fontWithName:(NSString *)filename {
+        CGFontRef font = NULL;
+        NSURL *url = [urls objectForKey:filename];
+        if (url == nil && [self loadFont:filename]) {
+                url = [urls objectForKey:filename];
+        }
+        if (url != nil) {
+                font = (CGFontRef)CFDictionaryGetValue(fonts, url);
+        }
+        return font;
+}
+
+- (ZFont *)zFontWithName:(NSString *)filename pointSize:(CGFloat)pointSize {
+        NSURL *url = [urls objectForKey:filename];
+        if (url == nil && [self loadFont:filename]) {
+                url = [urls objectForKey:filename];
+        }
+        if (url != nil) {
+                CGFontRef cgFont = (CGFontRef)CFDictionaryGetValue(fonts, url);
+                if (cgFont != NULL) {
+                        return [ZFont fontWithCGFont:cgFont size:pointSize];
+                }
+        }
+        return nil;
+}
+
+- (ZFont *)zFontWithURL:(NSURL *)url pointSize:(CGFloat)pointSize {
+        CGFontRef cgFont = (CGFontRef)CFDictionaryGetValue(fonts, url);
+        if (cgFont == NULL && [self loadFontURL:url]) {
+                cgFont = (CGFontRef)CFDictionaryGetValue(fonts, url);
+        }
+        if (cgFont != NULL) {
+                return [ZFont fontWithCGFont:cgFont size:pointSize];
+        }
+        return nil;
+}
+
+- (CFArrayRef)copyAllFonts {
+        CFIndex count = CFDictionaryGetCount(fonts);
+        CGFontRef *values = (CGFontRef *)malloc(sizeof(CGFontRef) * count);
+        CFDictionaryGetKeysAndValues(fonts, NULL, (const void **)values);
+        CFArrayRef array = CFArrayCreate(NULL, (const void **)values, count, &kCFTypeArrayCallBacks);
+        free(values);
+        return array;
+}
+
+- (void)dealloc {
+        CFRelease(fonts);
+        [urls release];
+        [super dealloc];
+}
+@end