//
//  UIButton+TUIImageTitleSpacing.m
//  TUICalling
//
//  Created by noah on 2021/8/24.
//

#import "UIButton+TUIImageTitleSpacing.h"

@implementation UIButton (TUIImageTitleSpacing)

- (void)layoutButtonWithEdgeInsetsStyle:(TUIButtonEdgeInsetsStyle)style
                        imageTitleSpace:(CGFloat)space {
    CGFloat imageWidth = self.imageView.frame.size.width;
    CGFloat imageHeight = self.imageView.frame.size.height;
    CGFloat labelWidth = self.titleLabel.intrinsicContentSize.width;
    CGFloat labelHeight = self.titleLabel.intrinsicContentSize.height;
    UIEdgeInsets imageEdgeInsets = UIEdgeInsetsZero;
    UIEdgeInsets labelEdgeInsets = UIEdgeInsetsZero;
    
    switch (style) {
        case TUIButtonEdgeInsetsStyleTop:
            imageEdgeInsets = UIEdgeInsetsMake(-labelHeight - space / 2.0, 0, 0, -labelWidth);
            labelEdgeInsets = UIEdgeInsetsMake(0, -imageWidth, -imageHeight - space / 2.0, 0);
            break;
        case TUIButtonEdgeInsetsStyleLeft:
            imageEdgeInsets = UIEdgeInsetsMake(0, -space / 2.0, 0, space / 2.0);
            labelEdgeInsets = UIEdgeInsetsMake(0, space / 2.0, 0, -space / 2.0);
            break;
        case TUIButtonEdgeInsetsStyleBottom:
            imageEdgeInsets = UIEdgeInsetsMake(0, 0, -labelHeight - space/2.0, -labelWidth);
            labelEdgeInsets = UIEdgeInsetsMake(-imageHeight - space / 2.0, -imageWidth, 0, 0);
            break;
        case TUIButtonEdgeInsetsStyleRight:
            imageEdgeInsets = UIEdgeInsetsMake(0, labelWidth+space / 2.0, 0, -labelWidth - space / 2.0);
            labelEdgeInsets = UIEdgeInsetsMake(0, -imageWidth - space / 2.0, 0, imageWidth + space / 2.0);
            break;
        default:
            break;
    }
    
    self.titleEdgeInsets = labelEdgeInsets;
    self.imageEdgeInsets = imageEdgeInsets;
}

@end