PDF_Office/PDF Office/PDF Master/Class/PDFTools/PageEdit/OCPart/CustomAlertView.m

//
//  CustomAlertView.m
//  NoteLedge for Mac
//
//  Created by LiuZhiXun on 16/4/27.
//  Copyright © 2016年 kdanmobile. All rights reserved.
//

#import "CustomAlertView.h"
#import <Quartz/Quartz.h>

@implementation CustomAlertView

- (void)drawRect:(NSRect)dirtyRect {
    [super drawRect:dirtyRect];
    
    // Drawing code here.
}

+ (CustomAlertView *)alertViewWithMessage:(NSString *)message
                                fromView:(NSView *)supverView
                                withStyle:(KMCustomAlertStyle)alertStyle
                          backgroundColor:(NSColor *)color {
    if (alertStyle != KMCustomAlertStyle_Black && alertStyle != KMCustomAlertStyle_Blue) {
        return nil;
    }
    
    CustomAlertView *view = [[CustomAlertView alloc] init];
    NSMutableParagraphStyle *style = [[NSMutableParagraphStyle alloc] init];
    [style setLineBreakMode:NSLineBreakByWordWrapping];
    
    CGFloat fontSize = 0;
    CGSize offsetSize = CGSizeZero;
    if (alertStyle == KMCustomAlertStyle_Black) {
        fontSize = 16;
    } else {
        fontSize = 12;
    }
  NSDictionary * attribute = @{NSFontAttributeName:[NSFont systemFontOfSize:fontSize],
                                NSParagraphStyleAttributeName:style};
    NSSize size = [message boundingRectWithSize:NSMakeSize(MIN(supverView.frame.size.width-80,500), supverView.frame.size.height-40) options:(NSStringDrawingTruncatesLastVisibleLine |                                                                             NSStringDrawingUsesLineFragmentOrigin |                                                                              NSStringDrawingUsesFontLeading) attributes:attribute].size;
    size.width = ceil(size.width);
    size.height = ceil(size.height);
    if (alertStyle == KMCustomAlertStyle_Black) {
         offsetSize = NSMakeSize(size.width+60, size.height+30);
        view.frame = NSMakeRect((supverView.frame.size.width-offsetSize.width)/2,
                                (supverView.frame.size.height-offsetSize.height)/2,
                                offsetSize.width,offsetSize.height);

    } else {
        offsetSize = NSMakeSize(size.width + size.height + 14 + 10, size.height+14);
        view.frame = NSMakeRect((supverView.frame.size.width-offsetSize.width)/2,
                                (supverView.frame.size.height-offsetSize.height) - 10,
                                offsetSize.width,offsetSize.height);
    }
    [supverView addSubview:view];
    view.wantsLayer = YES;
    
    NSTextField *messageLabel = nil;
    if (alertStyle == KMCustomAlertStyle_Black) {
        view.layer.cornerRadius = 8;
        if (color) {
            view.layer.backgroundColor = color.CGColor;
        } else {
            view.layer.backgroundColor = [[NSColor blackColor] colorWithAlphaComponent:0.7].CGColor;
        }
        messageLabel = [[NSTextField alloc] initWithFrame:NSMakeRect(15, 15, size.width+30., size.height)];
    } else {
        view.layer.cornerRadius = view.frame.size.height/2;
        if (color) {
            view.layer.backgroundColor = color.CGColor;
        } else {
            view.layer.backgroundColor = [NSColor colorWithRed:78/255.0 green:163/255.0 blue:255/255.0 alpha:1].CGColor;
        }
        messageLabel = [[NSTextField alloc] initWithFrame:NSMakeRect(view.frame.size.height/2, 7, size.width + 10, size.height)];
    }
    messageLabel.font = [NSFont systemFontOfSize:fontSize];
    messageLabel.textColor = [NSColor whiteColor];
    messageLabel.backgroundColor = [NSColor clearColor];
    messageLabel.bordered = NO;
    messageLabel.editable = NO;
    if ([messageLabel respondsToSelector:@selector(setLineBreakMode:)]) {
        messageLabel.lineBreakMode = NSLineBreakByWordWrapping;
    }
    
    messageLabel.alignment = NSTextAlignmentCenter;
    messageLabel.stringValue = message;
    [view addSubview:messageLabel];
    [view alphaAnimationFrom:0
                          to:1.
                    duration:0.3
               finishedBlock:^
     {
         dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
             [view alphaAnimationFrom:1.0 to:0. duration:0.3
                        finishedBlock:^{
                            [view removeFromSuperview];
                        }];
         });
     }];
    
    return view;
}

+ (CustomAlertView *)alertViewWithMessage:(NSString *)message fromView:(NSView *)supverView withStyle:(KMCustomAlertStyle)alertStyle {
    return [CustomAlertView alertViewWithMessage:message fromView:supverView withStyle:alertStyle backgroundColor:nil];
}


- (void)alphaAnimationFrom:(float)fromValue
                        to:(float)toValue
                  duration:(float)duration
             finishedBlock:(void (^)(void))block {
    CABasicAnimation  *flash = [CABasicAnimation animationWithKeyPath:@"opacity"];
    flash.fromValue = [NSNumber numberWithFloat:fromValue];
    flash.toValue = [NSNumber numberWithFloat:toValue];
    flash.duration = 0.5;        // 1 second
    [self.layer addAnimation:flash forKey:@"flashAnimation"];
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(duration * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        block();
    });
}


@end