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// ILPDFWidgetAnnotationView.m
//
// Copyright (c) 2017 Derek Blair
//
// 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 <ILPDFKit/ILPDFKit.h>
#import "ILPDFWidgetAnnotationView.h"
#define ILPDFTextFieldFontScaleFactor 0.75
#define ILPDFChoiceFieldBaseFontSizeToFrameHeightScaleFactor 0.8
@implementation ILPDFWidgetAnnotationView
#pragma mark - NSObject
- (void)dealloc {
if (_parentView.activeWidgetAnnotationView == self) {
[self resign];
_parentView.activeWidgetAnnotationView = nil;
}
}
#pragma mark - UIView
- (instancetype)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self != nil) {
_baseFrame = frame;
_zoomScale = 1.0;
}
return self;
}
#pragma mark - ILPDFWidgetAnnotationView
- (void)updateWithZoom:(CGFloat)zoom {
_zoomScale = zoom;
self.frame = CGRectMake(_baseFrame.origin.x*zoom,_baseFrame.origin.y*zoom,_baseFrame.size.width*zoom,_baseFrame.size.height*zoom);
}
+ (CGFloat)fontSizeForRect:(CGRect)rect value:(NSString *)value multiline:(BOOL)multiline choice:(BOOL)choice {
if (multiline) return ILPDFFormMinFontSize;
CGFloat baseSize;
if (choice) baseSize = roundf(MIN(MAX(floorf(rect.size.height*ILPDFChoiceFieldBaseFontSizeToFrameHeightScaleFactor),ILPDFFormMinFontSize),ILPDFFormMaxFontSize));
else baseSize = roundf(MAX(MIN(ILPDFFormMaxFontSize,MIN(rect.size.height, ILPDFFormMaxFontSize)*ILPDFTextFieldFontScaleFactor),ILPDFFormMinFontSize));
if (value) {
while (baseSize >= ILPDFFormMinFontSize && [value sizeWithAttributes:@{NSFontAttributeName:[UIFont systemFontOfSize:baseSize]}].width > rect.size.width-ILPDFFormMinFontSize) {
baseSize -= 1.0;
}
return baseSize;
} else return baseSize;
}
- (void)setValue:(NSString *)value {
}
- (NSString *)value {
return nil;
}
- (CGFloat)zoomScale {
return _zoomScale;
}
- (void)setOptions:(NSArray *)options {
}
- (NSArray *)options {
return nil;
}
- (void)refresh {
[self setNeedsDisplay];
}
- (void)resign {
}
#pragma mark - KVO
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
if ([keyPath isEqualToString:@"value"]) {
self.value = change[NSKeyValueChangeNewKey];
} else if ([keyPath isEqualToString:@"options"]) {
self.options = change[NSKeyValueChangeNewKey];
}
}
@end