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+//
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+// FLEXArgumentInputFontsPickerView.m
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+// UICatalog
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+//
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+// Created by 啟倫 陳 on 2014/7/27.
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+// Copyright (c) 2014年 f. All rights reserved.
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+//
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+
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+#import "FLEXArgumentInputFontsPickerView.h"
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+#import "FLEXRuntimeUtility.h"
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+
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+@interface FLEXArgumentInputFontsPickerView ()
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+
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+@property (nonatomic, strong) NSMutableArray *availableFonts;
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+
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+@end
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+
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+
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+@implementation FLEXArgumentInputFontsPickerView
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+
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+- (instancetype)initWithArgumentTypeEncoding:(const char *)typeEncoding
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+{
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+ self = [super initWithArgumentTypeEncoding:typeEncoding];
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+ if (self) {
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+ self.targetSize = FLEXArgumentInputViewSizeSmall;
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+ [self createAvailableFonts];
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+ self.inputTextView.inputView = [self createFontsPicker];
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+ }
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+ return self;
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+}
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+
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+- (void)setInputValue:(id)inputValue
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+{
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+ self.inputTextView.text = inputValue;
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+ if ([self.availableFonts indexOfObject:inputValue] == NSNotFound) {
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+ [self.availableFonts insertObject:inputValue atIndex:0];
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+ }
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+ [(UIPickerView*)self.inputTextView.inputView selectRow:[self.availableFonts indexOfObject:inputValue] inComponent:0 animated:NO];
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+}
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+
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+- (id)inputValue
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+{
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+ return [self.inputTextView.text length] > 0 ? [self.inputTextView.text copy] : nil;
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+}
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+
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+#pragma mark - private
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+
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+- (UIPickerView*)createFontsPicker
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+{
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+ UIPickerView *fontsPicker = [UIPickerView new];
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+ fontsPicker.dataSource = self;
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+ fontsPicker.delegate = self;
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+ fontsPicker.showsSelectionIndicator = YES;
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+ return fontsPicker;
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+}
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+
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+- (void)createAvailableFonts
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+{
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+ NSMutableArray *unsortedFontsArray = [NSMutableArray array];
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+ for (NSString *eachFontFamily in [UIFont familyNames]) {
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+ for (NSString *eachFontName in [UIFont fontNamesForFamilyName:eachFontFamily]) {
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+ [unsortedFontsArray addObject:eachFontName];
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+ }
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+ }
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+ self.availableFonts = [NSMutableArray arrayWithArray:[unsortedFontsArray sortedArrayUsingSelector:@selector(localizedCaseInsensitiveCompare:)]];
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+}
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+
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+#pragma mark - UIPickerViewDataSource
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+
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+- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
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+{
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+ return 1;
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+}
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+
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+- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
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+{
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+ return [self.availableFonts count];
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+}
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+
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+#pragma mark - UIPickerViewDelegate
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+
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+- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view
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+{
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+ UILabel *fontLabel;
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+ if (!view) {
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+ fontLabel = [UILabel new];
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+ fontLabel.backgroundColor = [UIColor clearColor];
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+ fontLabel.textAlignment = NSTextAlignmentCenter;
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+ } else {
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+ fontLabel = (UILabel*)view;
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+ }
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+ UIFont *font = [UIFont fontWithName:self.availableFonts[row] size:15.0];
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+ NSDictionary *attributesDictionary = [NSDictionary dictionaryWithObject:font forKey:NSFontAttributeName];
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+ NSAttributedString *attributesString = [[NSAttributedString alloc] initWithString:self.availableFonts[row] attributes:attributesDictionary];
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+ fontLabel.attributedText = attributesString;
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+ [fontLabel sizeToFit];
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+ return fontLabel;
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+}
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+
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+- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
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+{
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+ self.inputTextView.text = self.availableFonts[row];
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+}
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+
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+@end
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Ryan Olson