kmpdfkit_demo/PDFViewer/View/UIImage+TintColor.m

//
//  UIImage+TintColor.m
//  PDFViewer
//
//  Created by kdanmobile_2 on 2023/1/3.
//

#import "UIImage+TintColor.h"

@implementation UIImage (TintColor)

- (UIImage *)imageWithTintColor:(UIColor *)tintColor {
    UIGraphicsBeginImageContextWithOptions(self.size, NO, 0.0f);

    [tintColor setFill];
    
    CGRect bounds = CGRectMake(0, 0, self.size.width, self.size.height);
    UIRectFill(bounds);
    
    [self drawInRect:bounds blendMode:kCGBlendModeDestinationIn alpha:0.3f];
    
    [self drawInRect:bounds blendMode:kCGBlendModeOverlay alpha:2.0f];
    
    UIImage *tintImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    
    return tintImage;
}

- (void)setDatamodel:(CPDFDataModel *)datamodel {
    self.datamodel = datamodel;
}

- (CPDFDataModel *)datamodel {
    return self.datamodel;
}

- (CGRect)rotateRect:(CGRect)rect {
    CGAffineTransform tranform_1 = CGAffineTransformMakeTranslation(- self.size.width / 2,  - self.size.height / 2);
    CGRect rect_1 = CGRectApplyAffineTransform(rect,tranform_1);
    
    CGAffineTransform tranform_2 = CGAffineTransformMakeRotation(M_PI / 8);
    CGRect rect_2 = CGRectApplyAffineTransform(rect_1,tranform_2);
    
    CGAffineTransform tranform_3 = CGAffineTransformMakeTranslation(- self.size.width / 2,  - self.size.height / 2);
    CGRect rect_3 = CGRectApplyAffineTransform(rect_2,tranform_3);
    
    return rect_3;
}

@end