Initial commit (version 0.2.1)

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+//
+//  FontLabel.m
+//  FontLabel
+//
+//  Created by Kevin Ballard on 5/8/09.
+//  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 "FontLabel.h"
+#import "FontManager.h"
+#import "FontLabelStringDrawing.h"
+#import "ZFont.h"
+
+@interface ZFont (ZFontPrivate)
+@property (nonatomic, readonly) CGFloat ratio;
+@end
+
+@implementation FontLabel
+@synthesize zFont;
+@synthesize zAttributedText;
+
+- (id)initWithFrame:(CGRect)frame fontName:(NSString *)fontName pointSize:(CGFloat)pointSize {
+        return [self initWithFrame:frame zFont:[[FontManager sharedManager] zFontWithName:fontName pointSize:pointSize]];
+}
+
+- (id)initWithFrame:(CGRect)frame zFont:(ZFont *)font {
+        if ((self = [super initWithFrame:frame])) {
+                zFont = [font retain];
+        }
+        return self;
+}
+
+- (id)initWithFrame:(CGRect)frame font:(CGFontRef)font pointSize:(CGFloat)pointSize {
+        return [self initWithFrame:frame zFont:[ZFont fontWithCGFont:font size:pointSize]];
+}
+
+- (CGFontRef)cgFont {
+        return self.zFont.cgFont;
+}
+
+- (void)setCGFont:(CGFontRef)font {
+        if (self.zFont.cgFont != font) {
+                self.zFont = [ZFont fontWithCGFont:font size:self.zFont.pointSize];
+        }
+}
+
+- (CGFloat)pointSize {
+        return self.zFont.pointSize;
+}
+
+- (void)setPointSize:(CGFloat)pointSize {
+        if (self.zFont.pointSize != pointSize) {
+                self.zFont = [ZFont fontWithCGFont:self.zFont.cgFont size:pointSize];
+        }
+}
+
+- (void)setZAttributedText:(ZAttributedString *)attStr {
+        if (zAttributedText != attStr) {
+                [zAttributedText release];
+                zAttributedText = [attStr copy];
+                [self setNeedsDisplay];
+        }
+}
+
+- (void)drawTextInRect:(CGRect)rect {
+        if (self.zFont == NULL && self.zAttributedText == nil) {
+                [super drawTextInRect:rect];
+                return;
+        }
+        
+        if (self.zAttributedText == nil) {
+                // this method is documented as setting the text color for us, but that doesn't appear to be the case
+                if (self.highlighted) {
+                        [(self.highlightedTextColor ?: [UIColor whiteColor]) setFill];
+                } else {
+                        [(self.textColor ?: [UIColor blackColor]) setFill];
+                }
+                
+                ZFont *actualFont = self.zFont;
+                CGSize origSize = rect.size;
+                if (self.numberOfLines == 1) {
+                        origSize.height = actualFont.leading;
+                        CGPoint point = CGPointMake(rect.origin.x,
+                                                                                rect.origin.y + roundf(((rect.size.height - actualFont.leading) / 2.0f)));
+                        CGSize size = [self.text sizeWithZFont:actualFont];
+                        if (self.adjustsFontSizeToFitWidth && self.minimumFontSize < actualFont.pointSize) {
+                                if (size.width > origSize.width) {
+                                        CGFloat desiredRatio = (origSize.width * actualFont.ratio) / size.width;
+                                        CGFloat desiredPointSize = desiredRatio * actualFont.pointSize / actualFont.ratio;
+                                        actualFont = [actualFont fontWithSize:MAX(MAX(desiredPointSize, self.minimumFontSize), 1.0f)];
+                                        size = [self.text sizeWithZFont:actualFont];
+                                }
+                                if (!CGSizeEqualToSize(origSize, size)) {
+                                        switch (self.baselineAdjustment) {
+                                                case UIBaselineAdjustmentAlignCenters:
+                                                        point.y += roundf((origSize.height - size.height) / 2.0f);
+                                                        break;
+                                                case UIBaselineAdjustmentAlignBaselines:
+                                                        point.y += (self.zFont.ascender - actualFont.ascender);
+                                                        break;
+                                                case UIBaselineAdjustmentNone:
+                                                        break;
+                                        }
+                                }
+                        }
+                        size.width = MIN(size.width, origSize.width);
+                        // adjust the point for alignment
+                        switch (self.textAlignment) {
+                                case UITextAlignmentLeft:
+                                        break;
+                                case UITextAlignmentCenter:
+                                        point.x += (origSize.width - size.width) / 2.0f;
+                                        break;
+                                case UITextAlignmentRight:
+                                        point.x += origSize.width - size.width;
+                                        break;
+                        }
+                        [self.text drawAtPoint:point forWidth:size.width withZFont:actualFont lineBreakMode:self.lineBreakMode];
+                } else {
+                        CGSize size = [self.text sizeWithZFont:actualFont constrainedToSize:origSize lineBreakMode:self.lineBreakMode numberOfLines:self.numberOfLines];
+                        CGPoint point = rect.origin;
+                        point.y += roundf((rect.size.height - size.height) / 2.0f);
+                        rect = (CGRect){point, CGSizeMake(rect.size.width, size.height)};
+                        [self.text drawInRect:rect withZFont:actualFont lineBreakMode:self.lineBreakMode alignment:self.textAlignment numberOfLines:self.numberOfLines];
+                }
+        } else {
+                ZAttributedString *attStr = self.zAttributedText;
+                if (self.highlighted) {
+                        // modify the string to change the base color
+                        ZMutableAttributedString *mutStr = [[attStr mutableCopy] autorelease];
+                        NSRange activeRange = NSMakeRange(0, attStr.length);
+                        while (activeRange.length > 0) {
+                                NSRange effective;
+                                UIColor *color = [attStr attribute:ZForegroundColorAttributeName atIndex:activeRange.location
+                                                         longestEffectiveRange:&effective inRange:activeRange];
+                                if (color == nil) {
+                                        [mutStr addAttribute:ZForegroundColorAttributeName value:[UIColor whiteColor] range:effective];
+                                }
+                                activeRange.location += effective.length, activeRange.length -= effective.length;
+                        }
+                        attStr = mutStr;
+                }
+                CGSize size = [attStr sizeConstrainedToSize:rect.size lineBreakMode:self.lineBreakMode numberOfLines:self.numberOfLines];
+                CGPoint point = rect.origin;
+                point.y += roundf((rect.size.height - size.height) / 2.0f);
+                rect = (CGRect){point, CGSizeMake(rect.size.width, size.height)};
+                [attStr drawInRect:rect withLineBreakMode:self.lineBreakMode alignment:self.textAlignment numberOfLines:self.numberOfLines];
+        }
+}
+
+- (CGRect)textRectForBounds:(CGRect)bounds limitedToNumberOfLines:(NSInteger)numberOfLines {
+        if (self.zFont == NULL && self.zAttributedText == nil) {
+                return [super textRectForBounds:bounds limitedToNumberOfLines:numberOfLines];
+        }
+        
+        if (numberOfLines == 1) {
+                // if numberOfLines == 1 we need to use the version that converts spaces
+                CGSize size;
+                if (self.zAttributedText == nil) {
+                        size = [self.text sizeWithZFont:self.zFont];
+                } else {
+                        size = [self.zAttributedText size];
+                }
+                bounds.size.width = MIN(bounds.size.width, size.width);
+                bounds.size.height = MIN(bounds.size.height, size.height);
+        } else {
+                if (numberOfLines > 0) bounds.size.height = MIN(bounds.size.height, self.zFont.leading * numberOfLines);
+                if (self.zAttributedText == nil) {
+                        bounds.size = [self.text sizeWithZFont:self.zFont constrainedToSize:bounds.size lineBreakMode:self.lineBreakMode];
+                } else {
+                        bounds.size = [self.zAttributedText sizeConstrainedToSize:bounds.size lineBreakMode:self.lineBreakMode];
+                }
+        }
+        return bounds;
+}
+
+- (void)dealloc {
+        [zFont release];
+        [zAttributedText release];
+        [super dealloc];
+}
+@end