//
//  KMPosterPrintManager.m
//  PDF Reader Pro Edition
//
//  Created by 丁林圭 on 2018/4/3.
//

#import "KMPosterPrintManager.h"

#pragma mark - KMPDFPosterPrint

@implementation KMPDFPosterPrint

- (void)dealloc {

}

- (id)copyWithZone:(NSZone *)zone
{
    KMPDFPosterPrint *print = [[[self class] allocWithZone:zone] init];
    print.isLabel = self.isLabel;
    print.isCut = self.isLabel;
    print.direction = self.direction;
    print.cropPages = self.cropPages;
    print.scale = self.scale;
    print.overlap = self.overlap;
    return print;
}

@end

@interface KMPosterPrintManager()

@property (nonatomic,retain) KMPDFPosterPrint * PDFPrint;

@property (nonatomic,retain) NSArray * hourArray;

@property (nonatomic,retain) NSArray * vertArray;

@property (nonatomic,retain) NSString * filePath;

@property (assign) NSUInteger lineIndex;//记录水平第几行

@property (assign) NSUInteger columnIndex;//记录竖直第几列

@property (assign) CGRect currentPageRect;

@end

@implementation KMPosterPrintManager

-(void)dealloc
{

}

#pragma mark - Private method
-(void)splitPage:(PDFPage *)page rect:(CGRect)newRect toContext:(CGContextRef)pdfContext
{
    PDFPage * newPage = page.copy;
    NSMutableArray *annotations = [NSMutableArray array];
    for (PDFAnnotation *annotation in newPage.annotations) {
        [annotations addObject:annotation];
    }
    
    if (kKMPDFPosterCommentsForms_Documents == _PDFPrint.commentsForms) {
        for (PDFAnnotation *annotation in annotations) {
            [annotation.page removeAnnotation:annotation];
        }
    } else if (kKMPDFPosterCommentsForms_DocumentStamps == _PDFPrint.commentsForms) {
        for (PDFAnnotation *annotation in annotations) {
            if (![annotation isKindOfClass:[PDFAnnotationStamp class]]) {
                [annotation.page removeAnnotation:annotation];
            }
        }
    }
    
    [newPage setBounds:newRect forBox:kPDFDisplayBoxCropBox];
    
    [self drawPDFPage:newPage cropRect:newRect toContext:pdfContext];
}

//将裁剪到的页面补到A4纸面上去
-(void)drawPDFPage:(PDFPage *)page cropRect:(CGRect )cropRect toContext:(CGContextRef)context;
{
    CGRect mediaBox = CGRectZero;
    
    CGFloat KBlankA4W =0;
    CGFloat KBlankA4H =0;
    if (self.PDFPrint.splitType == kKMPDFPosterSplitType_PageNumber) {
        if (self.PDFPrint.isOriginalPageSize) {
            if (page.rotation == 90 || page.rotation == 270) {
                KBlankA4W = cropRect.size.height;
                KBlankA4H = cropRect.size.width;
            } else {
                KBlankA4W = cropRect.size.width;
                KBlankA4H = cropRect.size.height;
            }
        } else {
            if(kKMPDFPosterPrintDirection_Portrait == self.PDFPrint.direction){
                KBlankA4W = self.PDFPrint.fullPageSize.width;
                KBlankA4H = self.PDFPrint.fullPageSize.height;
            } else {
                KBlankA4W = self.PDFPrint.fullPageSize.height;
                KBlankA4H = self.PDFPrint.fullPageSize.width;
            }
        }
    } else {
        if(kKMPDFPosterPrintDirection_Portrait == self.PDFPrint.direction){
            KBlankA4W = self.PDFPrint.splitSize.width;
            KBlankA4H = self.PDFPrint.splitSize.height;
        } else {
            KBlankA4W = self.PDFPrint.splitSize.height;
            KBlankA4H = self.PDFPrint.splitSize.width;
        }
    }
    
    mediaBox = CGRectMake(0, 0, KBlankA4W, KBlankA4H);
    
    CGContextBeginPage(context, &mediaBox);
    [NSGraphicsContext saveGraphicsState];
    [NSGraphicsContext setCurrentContext:[NSGraphicsContext graphicsContextWithGraphicsPort:context flipped:NO]];
    
    if (self.PDFPrint.isCut) {
        [self drawCutMarkContext:context contextSize:CGSizeMake(KBlankA4W, KBlankA4H)];
    }
    
    if (self.PDFPrint.isLabel){
        [self drawLabelTextContextSize:CGSizeMake(KBlankA4W, KBlankA4H)];
    }
    
    NSInteger rotate = page.rotation;
    
    CGFloat PDFWidth = cropRect.size.width;
    CGFloat PDFHeight = cropRect.size.height;
    
    if (90 == rotate || 270 == rotate) {
        PDFWidth = cropRect.size.height;
        PDFHeight = cropRect.size.width;
    }
    CGFloat scanl = self.PDFPrint.scale;
    
    CGFloat left = self.PDFPrint.edgeInsets.left;
    CGFloat right = self.PDFPrint.edgeInsets.right;
    CGFloat top = self.PDFPrint.edgeInsets.top;
    CGFloat bottom = self.PDFPrint.edgeInsets.bottom;

    if (kKMPDFPosterSplitType_PageNumber == self.PDFPrint.splitType) {
        
         left = self.PDFPrint.fullPageEdgeInsets.left;
         right = self.PDFPrint.fullPageEdgeInsets.right;
         top = self.PDFPrint.fullPageEdgeInsets.top;
         bottom = self.PDFPrint.fullPageEdgeInsets.bottom;
        
        CGFloat contextA4W = KBlankA4W - left - right;//实际内容的宽度
        CGFloat contextA4H = KBlankA4H - top - bottom;//实际内容的高度
        
        scanl = MIN(contextA4W/PDFWidth, contextA4H/PDFHeight);
    }
    
    CGFloat xTransform = 0;
    CGFloat yTransform = 0;
    
    if (rotate == 90) {
        if (self.hourArray.count == 1 ) {
            xTransform = (mediaBox.size.width - PDFWidth *scanl)/2;
        } else {
            if (cropRect.size.height - cropRect.origin.y > 0) {
                xTransform = mediaBox.size.width - PDFWidth * scanl - right;
            } else {
                xTransform = left;
            }
        }
        
        if (self.vertArray.count == 1) {
            yTransform = (mediaBox.size.height - PDFHeight * scanl)/2;
        } else {
            if (cropRect.size.width - cropRect.origin.x > 0) {
                yTransform = bottom;
            } else {
                yTransform = mediaBox.size.height - PDFHeight * scanl - top;
            }
        }
    } else if (rotate == 180) {
        if (self.hourArray.count == 1 ) {
            xTransform = (mediaBox.size.width - PDFWidth * scanl)/2;
        } else {
            if (cropRect.origin.x > 0) {
                xTransform = mediaBox.size.width - PDFWidth * scanl -right;
            } else {
                xTransform = left;
            }
        }
        
        if (self.vertArray.count == 1) {
            yTransform = (mediaBox.size.height - PDFHeight * scanl)/2;
        } else {
            if (cropRect.origin.y > 0) {
                yTransform = mediaBox.size.height - PDFHeight * scanl - top;
            } else {
                yTransform = bottom;
            }
        }
    } else if (rotate == 270) {
        if (self.hourArray.count == 1 ) {
            xTransform = (mediaBox.size.width - PDFWidth * scanl)/2;
        } else {
            if (cropRect.size.height - cropRect.origin.y > 0) {
                xTransform = left;
            } else {
                xTransform = mediaBox.size.width - PDFWidth * scanl - right;
            }
        }
        
        if (self.vertArray.count == 1) {
            yTransform = (mediaBox.size.height - PDFHeight * scanl)/2;
        } else {
            if (cropRect.size.width - cropRect.origin.x > 0) {
                yTransform = mediaBox.size.height - PDFHeight * scanl - top;
            } else {
                yTransform = bottom;
            }
        }
    } else {
        if (self.hourArray.count == 1 ) {
            xTransform = (mediaBox.size.width - PDFWidth * scanl)/2;
        } else {
            if (cropRect.origin.x > 0) {
                xTransform = left;
            } else {
                xTransform = mediaBox.size.width - PDFWidth * scanl - right;
            }
        }
        
        if (self.vertArray.count == 1) {
            yTransform = (mediaBox.size.height - PDFHeight * scanl)/2;
            
        } else {
            if (cropRect.origin.y > 0) {
                yTransform = bottom;
            } else {
                yTransform = mediaBox.size.height - PDFHeight * scanl - top;
            }
        }
    }
    
    CGContextTranslateCTM(context, xTransform,yTransform);
    CGContextScaleCTM(context, scanl, scanl);
    
    if (@available(macOS 10.12, *)) {
        [page drawWithBox:kPDFDisplayBoxCropBox toContext:context];
        [page transformContext:context forBox:kPDFDisplayBoxCropBox];
    } else {
        [NSGraphicsContext saveGraphicsState];
        [NSGraphicsContext setCurrentContext:[NSGraphicsContext graphicsContextWithGraphicsPort:context flipped:YES]];
        [page drawWithBox:kPDFDisplayBoxCropBox];
        [NSGraphicsContext restoreGraphicsState];
        [page transformContextForBox:kPDFDisplayBoxCropBox];
    }
    
    [NSGraphicsContext restoreGraphicsState];
    CGContextEndPage(context);
}

-(void)drawCutMarkContext:(CGContextRef)context contextSize:(CGSize)size
{
    CGContextSetStrokeColorWithColor(context, [NSColor blackColor].CGColor);
    CGContextSetLineWidth(context, 1.0);
    CGContextSetLineCap(context, kCGLineCapSquare);
    
    if(self.columnIndex == 1 && self.lineIndex == 1) {
        [self drawLeftBottomCutMarks:context size:size];
        [self drawRightTopCutMarks:context size:size];
        [self drawRightBottomCutMarks:context size:size];
    } else if (self.lineIndex == 1 && self.columnIndex == self.vertArray.count) {
        [self drawLeftTopCutMarks:context size:size];
        [self drawRightTopCutMarks:context size:size];
        [self drawRightBottomCutMarks:context size:size];
    } else if (self.columnIndex == 1 && self.lineIndex == self.hourArray.count) {
        [self drawLeftTopCutMarks:context size:size];
        [self drawLeftBottomCutMarks:context size:size];
        [self drawRightBottomCutMarks:context size:size];
    } else if (self.columnIndex == self.vertArray.count && self.hourArray.count == self.lineIndex) {
        [self drawLeftTopCutMarks:context size:size];
        [self drawLeftBottomCutMarks:context size:size];
        [self drawRightTopCutMarks:context size:size];
    } else {
        [self drawLeftTopCutMarks:context size:size];
        [self drawLeftBottomCutMarks:context size:size];
        [self drawRightTopCutMarks:context size:size];
        [self drawRightBottomCutMarks:context size:size];
    }
    //绘制完成
    CGContextStrokePath(context);
}

//左上角切割标记
-(void)drawLeftTopCutMarks:(CGContextRef)context size:(CGSize)size
{
    CGFloat KBlankA4H =size.height;
    CGPoint point_LeftTop = CGPointZero;
    
    if (self.PDFPrint.splitType == kKMPDFPosterSplitType_PageNumber) {
        point_LeftTop.x = self.PDFPrint.fullPageEdgeInsets.left;
    } else {
        point_LeftTop.x = self.PDFPrint.edgeInsets.left;
    }
    
    point_LeftTop.y = KBlankA4H - self.PDFPrint.edgeInsets.top;
    
    CGContextMoveToPoint(context, 10,point_LeftTop.y);
    CGContextAddLineToPoint(context,point_LeftTop.x, point_LeftTop.y);
    
    CGContextMoveToPoint(context, point_LeftTop.x - 10,KBlankA4H -10);
    CGContextAddLineToPoint(context,point_LeftTop.x - 10,point_LeftTop.y);
}

//右上角切割标记
-(void)drawRightTopCutMarks:(CGContextRef)context size:(CGSize)size
{
    CGFloat KBlankA4W =size.width;
    CGFloat KBlankA4H =size.height;
    
    CGPoint point_RightTop = CGPointZero;//右上角
    
    if (self.PDFPrint.splitType == kKMPDFPosterSplitType_PageNumber) {
        point_RightTop.x = KBlankA4W - self.PDFPrint.fullPageEdgeInsets.right;
        point_RightTop.y = KBlankA4H - self.PDFPrint.fullPageEdgeInsets.top;
    } else {
        point_RightTop.x = KBlankA4W - self.PDFPrint.edgeInsets.right;
        point_RightTop.y = KBlankA4H - self.PDFPrint.edgeInsets.top;
    }
    
    CGContextMoveToPoint(context,point_RightTop.x,point_RightTop.y);
    CGContextAddLineToPoint(context,KBlankA4W - 10,point_RightTop.y);
    
    CGContextMoveToPoint(context,point_RightTop.x + 10,KBlankA4H - 10);
    CGContextAddLineToPoint(context,point_RightTop.x + 10,point_RightTop.y);
}

//左下角切割标记
-(void)drawLeftBottomCutMarks:(CGContextRef)context size:(CGSize)size
{
    CGPoint point_LeftBottom = CGPointZero;//左下角
    if (self.PDFPrint.splitType == kKMPDFPosterSplitType_PageNumber) {
        point_LeftBottom.x = self.PDFPrint.fullPageEdgeInsets.left;
        point_LeftBottom.y = self.PDFPrint.fullPageEdgeInsets.bottom;
    } else {
        point_LeftBottom.x = self.PDFPrint.edgeInsets.left;
        point_LeftBottom.y = self.PDFPrint.edgeInsets.bottom;
    }
    
    //左下角
    CGContextMoveToPoint(context, 10,point_LeftBottom.y);
    CGContextAddLineToPoint(context,point_LeftBottom.x, point_LeftBottom.y);
    
    CGContextMoveToPoint(context, point_LeftBottom.x- 10,10);
    CGContextAddLineToPoint(context,point_LeftBottom.x - 10,point_LeftBottom.y);
}

//右下角切割标记
-(void)drawRightBottomCutMarks:(CGContextRef)context size:(CGSize)size
{
    CGFloat KBlankA4W =size.width;
    
    CGPoint point_RightBottom = CGPointZero;//右下角
    if (self.PDFPrint.splitType == kKMPDFPosterSplitType_PageNumber) {
        point_RightBottom.x = KBlankA4W - self.PDFPrint.fullPageEdgeInsets.right;
        point_RightBottom.y = self.PDFPrint.fullPageEdgeInsets.bottom;
    } else {
        point_RightBottom.x = KBlankA4W - self.PDFPrint.edgeInsets.right;
        point_RightBottom.y = self.PDFPrint.edgeInsets.bottom;
    }
    
    CGContextMoveToPoint(context,KBlankA4W - 10,point_RightBottom.y);
    CGContextAddLineToPoint(context,point_RightBottom.x,point_RightBottom.y);
    
    CGContextMoveToPoint(context,point_RightBottom.x+ 10,10);
    CGContextAddLineToPoint(context,point_RightBottom.x+ 10,point_RightBottom.y);
}

- (void)drawLabelTextContextSize:(CGSize)contextSize
{
    CGFloat KBlankA4W =contextSize.width;
    CGFloat KBlankA4H =contextSize.height;
    
    NSString *contextString = nil;
    if (self.PDFPrint.labelString && self.PDFPrint.labelString.length > 0) {
        contextString = self.PDFPrint.labelString;
    } else {
        NSDate *date = [NSDate date];
        NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
        [formatter setDateFormat:@"YYYY-MM-dd hh:mm:ss"];
        contextString = [NSString stringWithFormat:@"(%ld,%ld) %@ %@",self.columnIndex,self.lineIndex,[self.filePath lastPathComponent],[formatter stringFromDate:date]];
    }
    
    CGFloat fontSize = 12.0 * (MAX(KBlankA4W, KBlankA4H)/842);
    NSFont *font = [NSFont systemFontOfSize:fontSize];
    NSColor *color = [NSColor blackColor];
    
    NSSize size = NSZeroSize;
    NSMutableParagraphStyle *style = [[NSMutableParagraphStyle alloc] init];
    [style setAlignment:NSCenterTextAlignment];
    [style setLineBreakMode:NSLineBreakByCharWrapping];
    NSMutableDictionary *dictionary = [NSMutableDictionary dictionary];
    [dictionary setObject:style forKey:NSParagraphStyleAttributeName];
    [dictionary setObject:color forKey:NSForegroundColorAttributeName];
    [dictionary setObject:font forKey:NSFontAttributeName];
    size = [contextString boundingRectWithSize:CGSizeMake(MAXFLOAT, MAXFLOAT)
                                       options:NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading
                                    attributes:dictionary].size;
    
    if (self.PDFPrint.splitType == kKMPDFPosterSplitType_PageNumber) {
        [contextString drawInRect:CGRectMake(self.PDFPrint.fullPageEdgeInsets.left +10,
                                             KBlankA4H - self.PDFPrint.fullPageEdgeInsets.top + size.height,
                                             size.width, size.height)
                   withAttributes:dictionary];
    } else {
        [contextString drawInRect:CGRectMake(self.PDFPrint.edgeInsets.left +10,
                                             KBlankA4H - self.PDFPrint.edgeInsets.top + size.height,
                                             size.width, size.height)
                   withAttributes:dictionary];
    }
    
}

#pragma mark Publick Action
+ (KMPosterPrintManager *)defaultManager
{
    static KMPosterPrintManager *singleton = nil;
    static dispatch_once_t pred;
    dispatch_once(&pred, ^{
        singleton = [[KMPosterPrintManager alloc] init];
    });
    return singleton;
}

- (void)savePath:(NSString *)path posterPrint:(KMPDFPosterPrint *)print completionHandler:(void (^)(BOOL))complet
{
    self.filePath = path;
    self.PDFPrint = print;
    
    NSArray * cropPages = print.cropPages;
    if (print.isReversePage) {
        cropPages = [[print.cropPages reverseObjectEnumerator] allObjects];
    }
    
    CFStringRef filePath = (__bridge CFStringRef)path;
    CFURLRef url = CFURLCreateWithFileSystemPath(NULL, filePath, kCFURLPOSIXPathStyle, 0);
    CFMutableDictionaryRef myDictionary = CFDictionaryCreateMutable(NULL,
                                                                    0,
                                                                    &kCFTypeDictionaryKeyCallBacks,
                                                                    &kCFTypeDictionaryValueCallBacks);
    CFDictionarySetValue(myDictionary, kCGPDFContextCreator, CFSTR("PDF Reader Pro"));
    
    CGContextRef pdfContext = CGPDFContextCreateWithURL(url, &CGRectZero, myDictionary);
    
    CFRelease(myDictionary);
    CFRelease(url);    
    
    if (!pdfContext) {
        complet(NO);
        return;
    }
    
    for (PDFPage * page in cropPages) {
        [self posterPrintPage:page posterPrint:print completionHandler:^(NSArray *horizontals, NSArray *verticals) {
            
            self.hourArray = horizontals;
            self.vertArray = [[verticals reverseObjectEnumerator] allObjects];//裁剪的时候，应从上自下依次裁剪打印
            
            NSInteger rotate = page.rotation;
            if (90 == rotate || 270 == rotate) {
                self.hourArray = verticals;
                self.vertArray = [[horizontals reverseObjectEnumerator] allObjects];
            }

            if (kKMPDFPosterSplitType_PageNumber == print.splitType) {
                for (NSUInteger j=0; j< _vertArray.count; j++) {
                    self.columnIndex = j + 1;
                    for (NSUInteger i=0; i< _hourArray.count; i++) {
                        CGRect newRect = CGRectZero;

                        self.lineIndex = i + 1;
                        
                        if (i != 0) {
                            newRect.origin.x = [_hourArray[i - 1] floatValue] -print.overlap;
                        }
                        if (j + 1 != _vertArray.count) {
                            newRect.origin.y = [_vertArray[j + 1] floatValue] -print.overlap;
                        }
                        
                        newRect.size.width = [_hourArray[i] floatValue] - newRect.origin.x;
                        
                        newRect.size.height = [_vertArray[j] floatValue] - newRect.origin.y;
                        
                        [self splitPage:page rect:newRect toContext:pdfContext];
                    }
                }
            } else {
                
                for (NSUInteger j=0; j< _vertArray.count; j++) {
                    self.columnIndex = j + 1;
                    for (NSUInteger i=0; i< _hourArray.count; i++) {
                        self.lineIndex = i + 1;
                        CGRect newRect = CGRectZero;
                        
                        if (i != 0) {
                            newRect.origin.x = [_hourArray[i - 1] floatValue] -print.overlap/print.scale;
                        }
                        
                        if (j + 1 != _vertArray.count) {
                            newRect.origin.y = [_vertArray[j + 1] floatValue] -print.overlap/print.scale;
                        }
                        
                        newRect.size.width = [_hourArray[i] floatValue] - newRect.origin.x;
                        
                        newRect.size.height = [_vertArray[j] floatValue] - newRect.origin.y;

                        [self splitPage:page rect:newRect toContext:pdfContext];
                    }
                }
            }
        }];
    }
    CGPDFContextClose(pdfContext);
    CGContextRelease (pdfContext);
    complet(YES);
}

//得到裁剪点数组
- (void)posterPrintPage:(PDFPage *)page posterPrint:(KMPDFPosterPrint *)properties completionHandler:(postPrintCallback)handler
{
    NSMutableArray *horizontalArray  = [NSMutableArray array];//水平坐标数组
    NSMutableArray *verticalArray  = [NSMutableArray array];//垂直坐标数组
    
    NSRect rect = [page boundsForBox:kPDFDisplayBoxCropBox];
    CGFloat orgPDFWidth = rect.size.width;//待裁剪的Page宽度
    CGFloat orgPDFHeight = rect.size.height;//待裁剪的Page高度
    
    NSInteger rotate = page.rotation;
    if (90 == rotate || 270 == rotate) {
        orgPDFWidth = rect.size.height;
        orgPDFHeight = rect.size.width;
    }
    
    CGFloat overlap = properties.overlap;
    
    if (kKMPDFPosterSplitType_PageNumber == properties.splitType) {
        NSInteger lineCount = properties.lineCount;

        if (lineCount>0) {
            CGFloat splitPDFW = orgPDFWidth + (lineCount - 1) * overlap;
            CGFloat spaceW = splitPDFW/lineCount; //均分宽度
            
            [horizontalArray addObject:@(spaceW)];
            for (NSInteger m =1; m< lineCount; m ++) {
                [horizontalArray addObject:@(spaceW  + m *(spaceW - overlap))];
            }
        }
        
        NSInteger columnCount = properties.columnCount;
        if (columnCount>0) {
            CGFloat splitPDFH = orgPDFHeight + (columnCount- 1) * overlap;
            CGFloat spaceH = splitPDFH/columnCount;  //均分高度
            
            [verticalArray addObject:@(spaceH)];
            for (NSInteger n =1; n< columnCount; n ++) {
                [verticalArray addObject:@(spaceH  + n *(spaceH - overlap))];
            }
        }
    } else {
        CGFloat scale = properties.scale;
        
        CGFloat splitWidth = properties.splitSize.width;
        CGFloat splitHeight = properties.splitSize.height;
        
        if (kKMPDFPosterPrintDirection_Landscape == properties.direction) {
            splitWidth = properties.splitSize.height;
            splitHeight = properties.splitSize.width;
        }
        
        CGFloat contextA4W = splitWidth - properties.edgeInsets.left - properties.edgeInsets.right;//实际内容的宽度
        CGFloat contextA4H = splitHeight - properties.edgeInsets.bottom - properties.edgeInsets.top;//实际内容的高度
        
        splitWidth = contextA4W/scale;
        splitHeight = contextA4H/scale;
        
        NSInteger columnCount = 0;//宽能切完整的个数
        CGFloat postPrintX = (contextA4W - overlap)/scale;
        while ((splitWidth + columnCount * postPrintX)< orgPDFWidth ) {
            columnCount ++;
        }
        
        CGFloat totalWidth = orgPDFWidth + columnCount * overlap;
        CGFloat firstX = (totalWidth - (columnCount-1) * splitWidth)/ 2; //计算第一个横向切割点
        
        //计算切割点
        if (columnCount >0) {
            if (firstX > 0) {
                CGFloat ww = firstX;
                [horizontalArray addObject:@(ww)];
                
                for (NSInteger i =1; i< columnCount; i ++) {
                    [horizontalArray addObject:@(postPrintX *i + ww)];
                }
                [horizontalArray addObject:@(orgPDFWidth)];
            } else if(0 == (int)firstX){
                [horizontalArray addObject:@(splitWidth)];
                for (NSInteger j =1; j< columnCount; j ++) {
                    [horizontalArray addObject:@(splitWidth + postPrintX *j)];
                }
            }
        } else {
            [horizontalArray addObject:@(orgPDFWidth)];
        }
        
        NSInteger lineCount = 0;//高能切完整的个数
        CGFloat postPrintY = (contextA4H - overlap)/scale;
        while ((splitHeight + lineCount* postPrintY)< orgPDFHeight ) {
            lineCount ++;
        }
        
        CGFloat totalHeight = orgPDFHeight + lineCount * overlap;
        CGFloat firstY = (totalHeight - (lineCount-1) * splitHeight)/ 2; //计算第一个纵向的切割点
        if (lineCount >0) {
            if (firstY > 0) {
                CGFloat hh = firstY;
                [verticalArray addObject:@(hh)];
                
                for (NSInteger m =1; m< lineCount; m ++) {
                    [verticalArray addObject:@(postPrintY *m + hh)];
                }
                [verticalArray addObject:@(orgPDFHeight)];
            } else if(0 == (int)firstY){
                [verticalArray addObject:@(splitHeight)];
                
                for (NSInteger n =1; n< lineCount; n++) {
                    [verticalArray addObject:@(splitHeight + postPrintY *n)];
                }
            }
        } else {
            [verticalArray addObject:@(orgPDFHeight)];
        }
    }
    
    handler(horizontalArray,verticalArray);
}

@end