Add getImageWithString to NCUtils and remove UIImageView+Letters

Signed-off-by: Marcel Müller <marcel-mueller@gmx.de>

NextcloudTalk.xcodeproj/project.pbxproj

@@ -174,7 +174,6 @@
 		2C62AFB624C1A449007E460A /* Share.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 2C62AFB524C1A449007E460A /* Share.storyboard */; };
 		2C62AFB924C1A4E6007E460A /* ShareViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 2C62AFB824C1A4E6007E460A /* ShareViewController.m */; };
 		2C62AFBB24C1B7B1007E460A /* NCDatabaseManager.m in Sources */ = {isa = PBXBuildFile; fileRef = 2C40281422832EED0000DDFC /* NCDatabaseManager.m */; };
-		2C62AFDF24C1BD8D007E460A /* UIImageView+Letters.m in Sources */ = {isa = PBXBuildFile; fileRef = 2C92195B1F58530B008AC1A3 /* UIImageView+Letters.m */; };
 		2C62AFFA24C1BDA5007E460A /* NCChatMessage.m in Sources */ = {isa = PBXBuildFile; fileRef = 2CA15540208E350300CE8EF0 /* NCChatMessage.m */; };
 		2C62AFFD24C1BDA5007E460A /* NCMessageParameter.m in Sources */ = {isa = PBXBuildFile; fileRef = 2C43BA7521309A1000B3068A /* NCMessageParameter.m */; };
 		2C62AFFF24C1BDAA007E460A /* NCUser.m in Sources */ = {isa = PBXBuildFile; fileRef = 2CA1CCCC1F181741002FE6A2 /* NCUser.m */; };
@@ -220,7 +219,6 @@
 		2C90E5CF1EDF23A00093D85A /* WebKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 2C90E5CE1EDF23A00093D85A /* WebKit.framework */; };
 		2C90E5D31EE80C870093D85A /* AuthenticationViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 2C90E5D11EE80C870093D85A /* AuthenticationViewController.m */; };
 		2C9200C32474262C0050084F /* UIBarButtonItem+Badge.m in Sources */ = {isa = PBXBuildFile; fileRef = 2C9200C22474262C0050084F /* UIBarButtonItem+Badge.m */; };
-		2C92195C1F58530B008AC1A3 /* UIImageView+Letters.m in Sources */ = {isa = PBXBuildFile; fileRef = 2C92195B1F58530B008AC1A3 /* UIImageView+Letters.m */; };
 		2C98F77921622445001A6A73 /* RoomSearchTableViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 2C98F77821622445001A6A73 /* RoomSearchTableViewController.m */; };
 		2C98F77D216231D3001A6A73 /* RoomTableViewCell.xib in Resources */ = {isa = PBXBuildFile; fileRef = 2C98F77C216231D3001A6A73 /* RoomTableViewCell.xib */; };
 		2C9B0B98217F6DBA00A4752C /* NCNotificationController.m in Sources */ = {isa = PBXBuildFile; fileRef = 2C9B0B97217F6DBA00A4752C /* NCNotificationController.m */; };
@@ -281,7 +279,6 @@
 		2CC0016924A25C3400A20167 /* NCMessageParameter.m in Sources */ = {isa = PBXBuildFile; fileRef = 2C43BA7521309A1000B3068A /* NCMessageParameter.m */; };
 		2CC0017324A3795B00A20167 /* NCImageSessionManager.m in Sources */ = {isa = PBXBuildFile; fileRef = 2CBF82BC1FD5AE0A00636459 /* NCImageSessionManager.m */; };
 		2CC0017424A3796400A20167 /* NCAPISessionManager.m in Sources */ = {isa = PBXBuildFile; fileRef = 2CBF82B51FD0939600636459 /* NCAPISessionManager.m */; };
-		2CC0019A24A37A7C00A20167 /* UIImageView+Letters.m in Sources */ = {isa = PBXBuildFile; fileRef = 2C92195B1F58530B008AC1A3 /* UIImageView+Letters.m */; };
 		2CC001B724A37A9A00A20167 /* NCUser.m in Sources */ = {isa = PBXBuildFile; fileRef = 2CA1CCCC1F181741002FE6A2 /* NCUser.m */; };
 		2CC001C124A37AC500A20167 /* NCNotification.m in Sources */ = {isa = PBXBuildFile; fileRef = 2C9B0B9B217F756B00A4752C /* NCNotification.m */; };
 		2CC001C224A37AC500A20167 /* NCPushNotification.m in Sources */ = {isa = PBXBuildFile; fileRef = 2CBF82AD1FC888FC00636459 /* NCPushNotification.m */; };
@@ -624,8 +621,6 @@
 		2C90E5D11EE80C870093D85A /* AuthenticationViewController.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = AuthenticationViewController.m; sourceTree = "<group>"; };
 		2C9200C12474262C0050084F /* UIBarButtonItem+Badge.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "UIBarButtonItem+Badge.h"; sourceTree = "<group>"; };
 		2C9200C22474262C0050084F /* UIBarButtonItem+Badge.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = "UIBarButtonItem+Badge.m"; sourceTree = "<group>"; };
-		2C92195A1F58530B008AC1A3 /* UIImageView+Letters.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "UIImageView+Letters.h"; sourceTree = "<group>"; };
-		2C92195B1F58530B008AC1A3 /* UIImageView+Letters.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = "UIImageView+Letters.m"; sourceTree = "<group>"; };
 		2C928BD2268A06BB00729332 /* cs */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = cs; path = cs.lproj/Localizable.strings; sourceTree = "<group>"; };
 		2C928BD3268A06BB00729332 /* cs */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = cs; path = cs.lproj/InfoPlist.strings; sourceTree = "<group>"; };
 		2C928BD4268A0AAD00729332 /* hu */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = hu; path = hu.lproj/Localizable.strings; sourceTree = "<group>"; };
@@ -965,7 +960,6 @@
 				2C20269D236832D300DFC89B /* FTPopOverMenu */,
 				2CB302F92264775E0053078A /* SlackTextViewController */,
 				2C4E758C214B942D003910D5 /* Firefox */,
-				2C9219591F58530B008AC1A3 /* UIImageView+Letters */,
 				2C4D7D601F2F7C2C00FF4A0D /* AppRTC */,
 			);
 			name = ThirdParty;
@@ -1354,16 +1348,6 @@
 			name = Frameworks;
 			sourceTree = "<group>";
 		};
-		2C9219591F58530B008AC1A3 /* UIImageView+Letters */ = {
-			isa = PBXGroup;
-			children = (
-				2C92195A1F58530B008AC1A3 /* UIImageView+Letters.h */,
-				2C92195B1F58530B008AC1A3 /* UIImageView+Letters.m */,
-			);
-			name = "UIImageView+Letters";
-			path = "ThirdParty/UIImageView+Letters";
-			sourceTree = "<group>";
-		};
 		2C9B0B99217F6E3400A4752C /* Notifications */ = {
 			isa = PBXGroup;
 			children = (
@@ -2059,7 +2043,6 @@
 				2CB304192264775E0053078A /* SLKInputAccessoryView.m in Sources */,
 				2CA1CC911F014354002FE6A2 /* NCConnectionController.m in Sources */,
 				1FB6678F28CE381300D29F8D /* SubtitleTableViewCell.swift in Sources */,
-				2C92195C1F58530B008AC1A3 /* UIImageView+Letters.m in Sources */,
 				1F24B5A228E0648600654457 /* ReferenceGithubView.swift in Sources */,
 				2C4D7D691F2F7DBC00FF4A0D /* ARDSettingsModel.m in Sources */,
 				2CB6ACBC26385A3800D3D641 /* ShareLocationViewController.m in Sources */,
@@ -2091,7 +2074,6 @@
 				1F1C0D7F29A7F33600D17C6D /* NCNotificationAction.swift in Sources */,
 				2C4446FC265D5C5800DF1DBC /* NCRoomParticipants.m in Sources */,
 				2CB6ACDC2641483800D3D641 /* NCMessageLocationParameter.m in Sources */,
-				2C62AFDF24C1BD8D007E460A /* UIImageView+Letters.m in Sources */,
 				2C1ABD8925769E7D00AEDFB6 /* ShareItem.m in Sources */,
 				2C62B02E24C1BDD7007E460A /* PlaceholderView.m in Sources */,
 				2C62B01024C1BDC5007E460A /* NCRoom.m in Sources */,
@@ -2139,7 +2121,6 @@
 				1F1C999D2909846400EACF02 /* BGTaskHelper.swift in Sources */,
 				2C4446F4265D51A600DF1DBC /* NCPushNotificationsUtils.m in Sources */,
 				1FA38C9129A4B3C6008871B8 /* NCNotificationAction.swift in Sources */,
-				2CC0019A24A37A7C00A20167 /* UIImageView+Letters.m in Sources */,
 				2C4446DE2658158000DF1DBC /* NCChatBlock.m in Sources */,
 				2C5BFBF3288AA37F00E75118 /* NCPoll.m in Sources */,
 				2C4446D9265814D100DF1DBC /* ServerCapabilities.m in Sources */,

NextcloudTalk/NCUtils.h

@@ -49,6 +49,7 @@ NS_ASSUME_NONNULL_BEGIN
 
 + (UIImage *)blurImageFromImage:(UIImage *)image;
 + (UIImage *)roundedImageFromImage:(UIImage *)image;
++ (UIImage *)getImageWithString:(NSString *)string withBackgroundColor:(UIColor *)color withBounds:(CGRect)bounds isCircular:(BOOL)isCircular;
 
 + (UIColor *)searchbarBGColorForColor:(UIColor *)color;
 

NextcloudTalk/NCUtils.m

@@ -272,6 +272,73 @@ static NSString *const nextcloudScheme = @"nextcloud:";
     return resultImage;
 }
 
++ (UIImage *)getImageWithString:(NSString *)string withBackgroundColor:(UIColor *)color withBounds:(CGRect)bounds isCircular:(BOOL)isCircular
+{
+    // Based on the "UIImageView+Letters" library from Tom Bachant
+
+    CGFloat fontSize = CGRectGetWidth(bounds) * 0.5;
+    NSDictionary *textAttributes = @{
+        NSFontAttributeName: [UIFont boldSystemFontOfSize:fontSize],
+        NSForegroundColorAttributeName: [UIColor whiteColor]
+    };
+
+    NSMutableString *displayString = [NSMutableString stringWithString:@""];
+
+    NSMutableArray *words = [[string componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] mutableCopy];
+
+    //
+    // Get first letter of the first word
+    //
+    if ([words count]) {
+        NSString *firstWord = [words firstObject];
+        if ([firstWord length]) {
+            // Get character range to handle emoji (emojis consist of 2 characters in sequence)
+            NSRange firstLetterRange = [firstWord rangeOfComposedCharacterSequencesForRange:NSMakeRange(0, 1)];
+            [displayString appendString:[firstWord substringWithRange:firstLetterRange]];
+        }
+    }
+
+    CGFloat scale = [UIScreen mainScreen].scale;
+    CGSize size = CGSizeMake(floorf(bounds.size.width * scale) / scale, floorf(bounds.size.height * scale) / scale);
+
+    UIGraphicsBeginImageContextWithOptions(size, NO, scale);
+
+    CGContextRef context = UIGraphicsGetCurrentContext();
+
+    if (isCircular) {
+        //
+        // Clip context to a circle
+        //
+        CGPathRef path = CGPathCreateWithEllipseInRect(bounds, NULL);
+        CGContextAddPath(context, path);
+        CGContextClip(context);
+        CGPathRelease(path);
+    }
+
+    //
+    // Fill background of context
+    //
+    CGContextSetFillColorWithColor(context, color.CGColor);
+    CGContextFillRect(context, CGRectMake(0, 0, size.width, size.height));
+
+    //
+    // Draw text in the context
+    //
+    NSString *text = [displayString uppercaseString];
+    CGSize textSize = [text sizeWithAttributes:textAttributes];
+
+    [text drawInRect:CGRectMake(bounds.size.width/2 - textSize.width/2,
+                                bounds.size.height/2 - textSize.height/2,
+                                textSize.width,
+                                textSize.height)
+      withAttributes:textAttributes];
+
+    UIImage *snapshot = UIGraphicsGetImageFromCurrentImageContext();
+    UIGraphicsEndImageContext();
+
+    return snapshot;
+}
+
 + (UIColor *)searchbarBGColorForColor:(UIColor *)color
 {
     CGFloat luma = [self calculateLumaFromColor:color];

ThirdParty/UIImageView+Letters/UIImageView+Letters.h

@@ -1,77 +0,0 @@
-//
-//  UIImageView+Letters.h
-//
-//  Created by Tom Bachant on 6/17/14.
-//  Copyright (c) 2014 Tom Bachant. All rights reserved.
-//
-//  Some code attributed to Nick Lockwood on 25/08/2013.
-//  Copyright (c) 2013 Charcoal Design
-//
-// 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.
-
-#import <UIKit/UIKit.h>
-
-@interface UIImageView (Letters)
-
-/**
- Sets the image property of the view based on initial text. A random background color is automatically generated.
- 
- @param string The string used to generate the initials. This should be a user's full name if available
- */
-- (void)setImageWithString:(NSString *)string;
-
-/**
- Sets the image property of the view based on initial text and a specified background color.
- 
- @param string The string used to generate the initials. This should be a user's full name if available
- @param color (optional) This optional paramter sets the background of the image. If not provided, a random color will be generated
- */
-
-- (void)setImageWithString:(NSString *)string color:(UIColor *)color;
-
-/**
- Sets the image property of the view based on initial text, a specified background color, and a circular clipping
- 
- @param string The string used to generate the initials. This should be a user's full name if available
- @param color (optional) This optional paramter sets the background of the image. If not provided, a random color will be generated
- @param isCircular This boolean will determine if the image view will be clipped to a circular shape
- */
-- (void)setImageWithString:(NSString *)string color:(UIColor *)color circular:(BOOL)isCircular;
-
-/**
- Sets the image property of the view based on initial text, a specified background color, a custom font, and a circular clipping
- 
- @param string The string used to generate the initials. This should be a user's full name if available
- @param color (optional) This optional paramter sets the background of the image. If not provided, a random color will be generated
- @param isCircular This boolean will determine if the image view will be clipped to a circular shape
- @param fontName This will use a custom font attribute. If not provided, it will default to system font
- */
-- (void)setImageWithString:(NSString *)string color:(UIColor *)color circular:(BOOL)isCircular fontName:(NSString *)fontName;
-
-/**
- Sets the image property of the view based on initial text, a specified background color, custom text attributes, and a circular clipping
-
- @param string The string used to generate the initials. This should be a user's full name if available
- @param color (optional) This optional paramter sets the background of the image. If not provided, a random color will be generated
- @param isCircular This boolean will determine if the image view will be clipped to a circular shape
- @param textAttributes This dictionary allows you to specify font, text color, shadow properties, etc., for the letters text, using the keys found in NSAttributedString.h
- */
-- (void)setImageWithString:(NSString *)string color:(UIColor *)color circular:(BOOL)isCircular textAttributes:(NSDictionary *)textAttributes;
-
-@end

ThirdParty/UIImageView+Letters/UIImageView+Letters.m

@@ -1,254 +0,0 @@
-//
-//  UIImageView+Letters.m
-//
-//  Created by Tom Bachant on 6/17/14.
-//  Copyright (c) 2014 Tom Bachant. All rights reserved.
-//
-// 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.
-
-#import "UIImageView+Letters.h"
-#import <CommonCrypto/CommonDigest.h>
-
-// This multiplier sets the font size based on the view bounds
-static const CGFloat kFontResizingProportion = 0.5f;
-
-@interface UIImageView (LettersPrivate)
-
-- (UIImage *)imageSnapshotFromText:(NSString *)text backgroundColor:(UIColor *)color circular:(BOOL)isCircular textAttributes:(NSDictionary *)attributes;
-
-@end
-
-@implementation UIImageView (Letters)
-
-- (void)setImageWithString:(NSString *)string {
-    [self setImageWithString:string color:nil circular:NO textAttributes:nil];
-}
-
-- (void)setImageWithString:(NSString *)string color:(UIColor *)color {
-    [self setImageWithString:string color:color circular:NO textAttributes:nil];
-}
-
-- (void)setImageWithString:(NSString *)string color:(UIColor *)color circular:(BOOL)isCircular {
-    [self setImageWithString:string color:color circular:isCircular textAttributes:nil];
-}
-
-- (void)setImageWithString:(NSString *)string color:(UIColor *)color circular:(BOOL)isCircular fontName:(NSString *)fontName {
-    [self setImageWithString:string color:color circular:isCircular textAttributes:@{
-                                                                                     NSFontAttributeName:[self fontForFontName:fontName],
-                                                                                     NSForegroundColorAttributeName: [UIColor whiteColor]
-                                                                                     }];
-}
-
-- (void)setImageWithString:(NSString *)string color:(UIColor *)color circular:(BOOL)isCircular textAttributes:(NSDictionary *)textAttributes {
-    if (!textAttributes) {
-        textAttributes = @{
-                           NSFontAttributeName: [self fontForFontName:nil],
-                           NSForegroundColorAttributeName: [UIColor whiteColor]
-                           };
-    }
-    
-    NSMutableString *displayString = [NSMutableString stringWithString:@""];
-    
-    NSMutableArray *words = [[string componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] mutableCopy];
-    
-    //
-    // Get first letter of the first word
-    //
-    if ([words count]) {
-        NSString *firstWord = [words firstObject];
-        if ([firstWord length]) {
-            // Get character range to handle emoji (emojis consist of 2 characters in sequence)
-            NSRange firstLetterRange = [firstWord rangeOfComposedCharacterSequencesForRange:NSMakeRange(0, 1)];
-            [displayString appendString:[firstWord substringWithRange:firstLetterRange]];
-        }
-    }
-    
-    UIColor *backgroundColor = color ? color : [self colorFromString:string];
-
-    self.image = [self imageSnapshotFromText:[displayString uppercaseString] backgroundColor:backgroundColor circular:isCircular textAttributes:textAttributes];
-}
-
-#pragma mark - Helpers
-
-- (UIFont *)fontForFontName:(NSString *)fontName {
-    
-    CGFloat fontSize = CGRectGetWidth(self.bounds) * kFontResizingProportion;
-    if (fontName) {
-        return [UIFont fontWithName:fontName size:fontSize];
-    }
-    else {
-        return [UIFont boldSystemFontOfSize:fontSize];
-    }
-    
-}
-
-- (UIColor *)randomColor {
-    
-    srand48(arc4random());
-    
-    float red = 0.0;
-    while (red < 0.1 || red > 0.84) {
-        red = drand48();
-    }
-    
-    float green = 0.0;
-    while (green < 0.1 || green > 0.84) {
-        green = drand48();
-    }
-    
-    float blue = 0.0;
-    while (blue < 0.1 || blue > 0.84) {
-        blue = drand48();
-    }
-    
-    return [UIColor colorWithRed:red green:green blue:blue alpha:1.0f];
-}
-
-- (UIColor *)colorFromString:(NSString *)string {
-    const char *cStr = [string UTF8String];
-    unsigned char result[CC_MD5_DIGEST_LENGTH];
-    CC_MD5( cStr, (int)strlen(cStr), result );
-    NSInteger seedMd5Int = [[NSString stringWithFormat:
-                        @"%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
-                        result[0], result[1], result[2], result[3],
-                        result[4], result[5], result[6], result[7],
-                        result[8], result[9], result[10], result[11],
-                        result[12], result[13], result[14], result[15]
-                        ] hash];
-    
-    int maxRange = INT_MAX;
-    
-    float h = (float) (seedMd5Int / maxRange * 360);
-    float s = 90.0f;
-    float l = 65.0f;
-    float alpha = 1.0f;
-        
-    if (s < 0.0f || s > 100.0f) {
-        NSLog(@"Color parameter outside of expected range - Saturation");
-    }
-    
-    if (l < 0.0f || l > 100.0f) {
-        NSLog(@"Color parameter outside of expected range - Luminance");
-    }
-    
-    if (alpha < 0.0f || alpha > 1.0f) {
-        NSLog(@"Color parameter outside of expected range - Alpha");
-    }
-    
-    //  Formula needs all values between 0 - 1.
-    
-    h = fmodf(h, 360.0f);//h % 360;
-    h = h / 360.0f;
-    s = s / 100.0f;
-    l = l / 100.0f;
-    
-    float q;
-    
-    if (l < 0.5) {
-        q = l * (1 + s);
-    } else {
-        q = (l + s) - (s * l);
-    }
-    
-    float p = 2 * l - q;
-    
-    int r = round(MAX(0, [self HueToRGBp:p q:q h:h + (1.0f / 3.0f)] * 256));
-    int g = round(MAX(0, [self HueToRGBp:p q:q h:h] * 256));
-    int b = round(MAX(0, [self HueToRGBp:p q:q h:h - (1.0f / 3.0f)] * 256));
-    
-    return [UIColor colorWithRed:r/255.0 green:g/255.0 blue:b/255.0 alpha:1];
-}
-
-- (float)HueToRGBp:(float)p q:(float)q h:(float)h {
-    if (h < 0) {
-        h += 1;
-    }
-    
-    if (h > 1) {
-        h -= 1;
-    }
-    
-    if (6 * h < 1) {
-        return p + ((q - p) * 6 * h);
-    }
-    
-    if (2 * h < 1) {
-        return q;
-    }
-    
-    if (3 * h < 2) {
-        return p + ((q - p) * 6 * ((2.0f / 3.0f) - h));
-    }
-    
-    return p;
-}
-
-- (UIImage *)imageSnapshotFromText:(NSString *)text backgroundColor:(UIColor *)color circular:(BOOL)isCircular textAttributes:(NSDictionary *)textAttributes {
-    
-    CGFloat scale = [UIScreen mainScreen].scale;
-    
-    CGSize size = self.bounds.size;
-    if (self.contentMode == UIViewContentModeScaleToFill ||
-        self.contentMode == UIViewContentModeScaleAspectFill ||
-        self.contentMode == UIViewContentModeScaleAspectFit ||
-        self.contentMode == UIViewContentModeRedraw)
-    {
-        size.width = floorf(size.width * scale) / scale;
-        size.height = floorf(size.height * scale) / scale;
-    }
-    
-    UIGraphicsBeginImageContextWithOptions(size, NO, scale);
-    
-    CGContextRef context = UIGraphicsGetCurrentContext();
-    
-    if (isCircular) {
-        //
-        // Clip context to a circle
-        //
-        CGPathRef path = CGPathCreateWithEllipseInRect(self.bounds, NULL);
-        CGContextAddPath(context, path);
-        CGContextClip(context);
-        CGPathRelease(path);
-    }
-    
-    //
-    // Fill background of context
-    //
-    CGContextSetFillColorWithColor(context, color.CGColor);
-    CGContextFillRect(context, CGRectMake(0, 0, size.width, size.height));
-    
-    //
-    // Draw text in the context
-    //
-    CGSize textSize = [text sizeWithAttributes:textAttributes];
-    CGRect bounds = self.bounds;
-    
-    [text drawInRect:CGRectMake(bounds.size.width/2 - textSize.width/2,
-                                bounds.size.height/2 - textSize.height/2,
-                                textSize.width,
-                                textSize.height)
-      withAttributes:textAttributes];
-    
-    UIImage *snapshot = UIGraphicsGetImageFromCurrentImageContext();
-    UIGraphicsEndImageContext();
-    
-    return snapshot;
-}
-
-@end