PDF_Office/PDF Office/PDF Office/Class/PDFWindowController/PDFListView/CPDFListView.m

//
//  CPDFListView.m
//  ComPDFKit
//
//  Copyright © 2014-2022 PDF Technologies, Inc. All Rights Reserved.
//
//  THIS SOURCE CODE AND ANY ACCOMPANYING DOCUMENTATION ARE PROTECTED BY INTERNATIONAL COPYRIGHT LAW
//  AND MAY NOT BE RESOLD OR REDISTRIBUTED. USAGE IS BOUND TO THE ComPDFKit LICENSE AGREEMENT.
//  UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS SUBJECT TO CIVIL AND CRIMINAL PENALTIES.
//  This notice may not be removed from this file.
//

#import "CPDFListView.h"

#import "CPDFAnnotationModel.h"
#import "CStampSignatureObject.h"
#import "CSelfSignAnnotation.h"
#import "CSelfSignAnnotationFreeText.h"
#import "CPDFListViewConfig.h"
#import "CPDFListEditAnnotationViewController.h"

#import "CPDFListView+Private.h"
#import "CPDFListView+Event.h"
#import "CPDFListView+Tool.h"
#import "CPDFAnnotation+PDFListView.h"
#import "CPDFSelection+PDFListView.h"
#import "CPDFPage+PDFListView.h"
#import "CPDFListView+Extension.h"
#import "NSString+PDFListView.h"
#import "NSImage+PDFListView.h"

#import "CPDFListStampAnnotation+Private.h"
#import "CPDFListSignatureAnnotation+Private.h"

#import "CPDFMarkupAnnotation+PDFListView.h"
#import "CPDFButtonWidgetAnnotation+PDFListView.h"
#import "CPDFTextWidgetAnnotation+PDFListView.h"
#import "CPDFChoiceWidgetAnnotation+PDFListView.h"
#import "CPDFChoiceWidgetAnnotation+PDFListView.h"
#import "CPDFLineAnnotation+PDFListView.h"
#import "NSPopover+PDFListView.h"

NSNotificationName const CPDFListViewSelectionChangedNotification = @"CPDFListViewSelectionChangedNotification";

NSNotificationName const CPDFListViewToolModeChangeNotification = @"CPDFListViewToolModeChangeNotification";

NSNotificationName const CPDFListViewAnnotationTypeChangeNotification = @"CPDFListViewAnnotationTypeChangeNotification";

NSNotificationName const CPDFListViewMagnificationChangedNotification = @"CPDFListViewMagnificationChangedNotification";

NSNotificationName const CPDFListViewDidAddAnnotationNotification = @"CPDFListViewDidAddAnnotationNotification";

NSNotificationName const CPDFListViewDidRemoveAnnotationNotification = @"CPDFListViewDidRemoveAnnotationNotification";

NSNotificationName const CPDFListViewActiveAnnotationsChangeNotification = @"CPDFListViewActiveAnnotationsChangeNotification";

@implementation CPDFListView

+ (void)configDefaultValues {
    
}

#pragma mark - Init

- (id)init {
    self = [super init];
    if (self) {
        [self commonInitialization];
    }
    return self;
}

- (id)initWithFrame:(NSRect)frameRect {
    self = [super initWithFrame:frameRect];
    if (self) {
        [self commonInitialization];
    }
    return self;
}

- (id)initWithCoder:(NSCoder *)decoder {
    self = [super initWithCoder:decoder];
    if (self) {
        [self commonInitialization];
    }
    return self;
}

- (void)commonInitialization {
    self.selectionPageIndex = NSNotFound;
    self.clickLineAnnotation = nil;
    self.isClickDoubleCreatLine = NO;
    
    self.activeAnnotations = [NSMutableArray array];
    self.selectAnnotations = [NSMutableArray array];
    self.dragHoverPoints = [NSMutableArray array];
    self.aCopyAnnotations = [NSMutableArray array];
}

#pragma mark - Setter & Get

- (void)setDocument:(CPDFDocument *)document {
    @synchronized (self) {
        self.selectionRect = NSZeroRect;
        self.selectionPageIndex = NSNotFound;
    }
//    self.annotationType = CAnnotationTypeSquare;
//    self.toolMode = CSelectToolMode;
//
    [super setDocument:document];
    
    NSURL *initialUserDefaultsURL = [[NSBundle mainBundle] URLForResource:@"InitialUserDefaults" withExtension:@"plist"];
    NSDictionary *initialUserDefaultsDict = [NSDictionary dictionaryWithContentsOfURL:initialUserDefaultsURL];
    NSDictionary *initialValuesDict = [initialUserDefaultsDict objectForKey:@"RegisteredDefaults"];
    NSArray *resettableUserDefaultsKeys;
    
    // set them in the standard user defaults
    [[NSUserDefaults standardUserDefaults] registerDefaults:initialValuesDict];
    
    [self.window makeFirstResponder:self];
    
    [NSImage makePDFListViewCursorImages];
}

-(void)setToolMode:(CToolMode)newToolMode {
    if(newToolMode != _toolMode) {
        if ((CTextToolMode == _toolMode || CNoteToolMode == _toolMode) && CTextToolMode != newToolMode) {
            if (newToolMode != CNoteToolMode && self.activeAnnotation)
                [self updateActiveAnnotations:@[]];
            if ([self currentSelection])
                [self setCurrentSelection:nil];
        } else if (_toolMode == CSelectToolMode && NSEqualRects(self.selectionRect, NSZeroRect) == NO) {
            self.selectionRect = NSZeroRect;
            dispatch_async(dispatch_get_main_queue(), ^{
                [[NSNotificationCenter defaultCenter] postNotificationName:CPDFViewSelectionChangedNotification object:self];
            });
            if([self.pdfListViewDelegate respondsToSelector:@selector(PDFListViewChangedSelectionOrMagnification:)])
                [self.pdfListViewDelegate PDFListViewChangedSelectionOrMagnification:self];
        }
        
        if(CFormToolMode == newToolMode || CFormToolMode == _toolMode)
            [self setNeedsDisplayAnnotationViewForVisiblePages];
        
        _toolMode = newToolMode;
        
        self.selectZoomToolModeZoomOut = NO;

        if([self.pdfListViewDelegate respondsToSelector:@selector(PDFListViewChangedToolMode:forToolMode:)])
            [self.pdfListViewDelegate PDFListViewChangedToolMode:self forToolMode:newToolMode];
        
        dispatch_async(dispatch_get_main_queue(), ^{
            [[NSNotificationCenter defaultCenter] postNotificationName:CPDFListViewToolModeChangeNotification object:self];
        });
        [self resetPDFViewAnnotation];
    }
}

- (void)setAnnotationType:(CAnnotationType)annotationType {
    if (_annotationType != annotationType) {
        
        _annotationType = annotationType;
        
        if([self.pdfListViewDelegate respondsToSelector:@selector(PDFListViewChangedAnnotationType:forAnnotationType:)])
            [self.pdfListViewDelegate PDFListViewChangedAnnotationType:self forAnnotationType:annotationType];
        
        dispatch_async(dispatch_get_main_queue(), ^{
            [[NSNotificationCenter defaultCenter] postNotificationName:CPDFListViewAnnotationTypeChangeNotification object:self];
        });
    }
    [self resetPDFViewAnnotation];
}

- (NSRect)currentSelectionRect {
    if (CSelectToolMode == self.toolMode)
        return self.selectionRect;
    return NSZeroRect;
}

- (CPDFAnnotation *)activeAnnotation {
    return self.activeAnnotations.lastObject;
}

#pragma mark - Public

- (CPDFAnnotation *)addAnnotationWithType:(CAnnotationType)annotationType selection:(CPDFSelection *)selection page:(CPDFPage *)page bounds:(NSRect)bounds {
    CPDFAnnotation *annotation = nil;
    
    NSString *text = [selection PDFListViewCleanedString];
    
    if([CPDFListView isMarkupAnnotationType:annotationType]) {
        if(selection){
            annotation = [self addPDFSelection:selection annotationTyoe:annotationType];
            [annotation setContents:text?:@""];
        } else NSBeep();
    } else {
        BOOL isInitial = NO;
        if(selection) {
            CGRect noteRect = selection.bounds;
            isInitial = NSEqualSizes(noteRect.size, NSZeroSize);
        } else {
            isInitial = NSEqualSizes(bounds.size, NSZeroSize);
        }
        CPDFAnnotationModel *annotationModel = [[CPDFAnnotationModel alloc]initWithAnnotationType:annotationType];
        CGSize size = CGSizeMake(annotationModel.noteWidth, annotationModel.noteHeight);
        if (isInitial)
            bounds = annotationType == CAnnotationTypeAnchored ? CPDFListViewRectFromCenterAndSize(bounds.origin, size) : CPDFListViewRectFromCenterAndSquareSize(bounds.origin, MIN_NOTE_SIZE);
        switch (annotationType) {
            case CAnnotationTypeFreeText:
                annotation = [[CPDFFreeTextAnnotation alloc]initPDFListViewNoteWithDocument:self.document];
                annotation.bounds = bounds;
                break;
            case CAnnotationTypeAnchored:
                annotation = [[CPDFTextAnnotation alloc]initPDFListViewNoteWithDocument:self.document];
                annotation.bounds = bounds;
                break;
            case CAnnotationTypeCircle:
                annotation = [[CPDFCircleAnnotation alloc]initPDFListViewNoteWithDocument:self.document];
                annotation.bounds = bounds;
                break;
            case CAnnotationTypeSquare:
                annotation = [[CPDFSquareAnnotation alloc]initPDFListViewNoteWithDocument:self.document];
                annotation.bounds = bounds;
                break;
            case CAnnotationTypeLine:
                annotation = [[CPDFLineAnnotation alloc]initPDFListViewNoteWithDocument:self.document];
                [(CPDFLineAnnotation *)annotation setObservedStartPoint:CGPointMake(bounds.origin.x, bounds.origin.y)];
                [(CPDFLineAnnotation *)annotation setObservedEndPoint:CGPointMake(bounds.origin.x + bounds.size.width,bounds.origin.y+ bounds.size.height)];
                [(CPDFLineAnnotation *)annotation setStartLineStyle:CPDFLineStyleNone];
                [(CPDFLineAnnotation *)annotation setEndLineStyle:CPDFLineStyleNone];
                break;
            case CAnnotationTypeArrow: {
                CPDFAnnotationModel *annotationModel = [[CPDFAnnotationModel alloc] initWithAnnotationType:CAnnotationTypeArrow];
                annotation = [[CPDFLineAnnotation alloc]initPDFListViewNoteWithDocument:self.document];
                [(CPDFLineAnnotation *)annotation setObservedStartPoint:CGPointMake(bounds.origin.x, bounds.origin.y)];
                [(CPDFLineAnnotation *)annotation setObservedEndPoint:CGPointMake(bounds.origin.x + bounds.size.width,bounds.origin.y+ bounds.size.height)];
                [(CPDFLineAnnotation *)annotation setStartLineStyle:annotationModel.startLineStyle];
                [(CPDFLineAnnotation *)annotation setEndLineStyle:annotationModel.endLineStyle];
            }
                break;
            case CAnnotationTypeLink:
                annotation = [[CPDFLinkAnnotation alloc] initPDFListViewNoteWithDocument:self.document];
                annotation.bounds = bounds;
                break;
            case CAnnotationTypeTextField:
                annotation = [[CPDFTextWidgetAnnotation alloc] initPDFListViewNoteWithDocument:self.document];
                annotation.bounds = bounds;
                break;
            case CAnnotationTypeCheckBox:
                annotation = [[CPDFButtonWidgetAnnotation alloc] initPDFListViewNoteWithDocument:self.document controlType:CPDFWidgetCheckBoxControl];
                annotation.bounds = bounds;
                break;
            case CAnnotationTypeRadioButton:
                annotation = [[CPDFButtonWidgetAnnotation alloc] initPDFListViewNoteWithDocument:self.document controlType:CPDFWidgetRadioButtonControl];
                annotation.bounds = bounds;
                break;
            case CAnnotationTypeListMenu:
                annotation = [[CPDFChoiceWidgetAnnotation alloc] initPDFListViewNoteWithDocument:self.document listChoice:YES];
                annotation.bounds = bounds;
                break;
            case CAnnotationTypeComboBox:
                annotation = [[CPDFChoiceWidgetAnnotation alloc] initPDFListViewNoteWithDocument:self.document listChoice:NO];
                annotation.bounds = bounds;
                break;
            case CAnnotationTypeSignature:
                annotation = [[CPDFSignatureWidgetAnnotation alloc] initPDFListViewNoteWithDocument:self.document];
                annotation.bounds = bounds;
                break;
            case CAnnotationTypeActionButton:
                annotation = [[CPDFButtonWidgetAnnotation alloc] initPDFListViewNoteWithDocument:self.document controlType:CPDFWidgetPushButtonControl];
                annotation.bounds = bounds;
                break;
            case CAnnotationTypeSignFalse:
            case CAnnotationTypeSignTure:
            case CAnnotationTypeSignCircle:
            case CAnnotationTypeSignLine:
            case CAnnotationTypeSignDot:
                annotation = [[CSelfSignAnnotation alloc]initPDFListViewNoteWithDocument:self.document type:self.annotationType];
                annotation.bounds = bounds;
                [(CSelfSignAnnotation *)annotation updateAppearanceStream];
                break;
            case CAnnotationTypeSignText:
            case CAnnotationTypeSignConfig:
            case CAnnotationTypeSignDate:
                annotation = [[CSelfSignAnnotationFreeText alloc]initPDFListViewNoteWithDocument:self.document subType:self.annotationType string:@"" bounds:bounds];
                break;
      
            default:
                break;
        }
    }
    
    if (annotation) {
        [self addAnnotation:annotation toPage:page];
    }
        
    return annotation;
}

- (void)drawAnnotation:(CPDFAnnotation *)annotation toContext:(CGContextRef)context {
    [super drawAnnotation:annotation toContext:context];
    
    if (CFormToolMode == _toolMode &&
        [annotation isKindOfClass:[CPDFWidgetAnnotation class]]) {
        
        CPDFWidgetAnnotation *annotationWidget = (CPDFWidgetAnnotation*)annotation;
        if (annotationWidget.fieldName.length > 0) {
            CGContextSaveGState(context);
            NSMutableParagraphStyle *paragraphStyle = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
            paragraphStyle.lineBreakMode = NSLineBreakByWordWrapping;
            paragraphStyle.alignment = NSTextAlignmentLeft;
            NSColor *backgroundColor = [NSColor blackColor];
            if ([self.activeAnnotations containsObject:annotation]) {
                backgroundColor = [NSColor colorWithRed:82.0/255.0 green:102.0/255.0 blue:204.0/255.0  alpha:1.0];
            }
            
            NSDictionary *attributes = @{NSFontAttributeName : [NSFont systemFontOfSize:12],
                                         NSForegroundColorAttributeName : [NSColor whiteColor],
                                         NSBackgroundColorAttributeName : backgroundColor,
                                         NSParagraphStyleAttributeName : paragraphStyle};
            NSString* drawString = annotationWidget.fieldName;
            drawString = [drawString getMaxStringWithBounds:annotationWidget.bounds attributes:attributes];
            
            CGSize size = [drawString sizeWithAttributes:attributes];
            CGRect drawRect = annotationWidget.bounds;
            drawRect.origin.y += (drawRect.size.height - size.height)/2.0;
            drawRect.origin.x += (drawRect.size.width - size.width)/2.0;
            drawRect.size.height = size.height;
            drawRect.size.width = size.width;
            
            [NSGraphicsContext saveGraphicsState];
            [NSGraphicsContext setCurrentContext:[NSGraphicsContext graphicsContextWithGraphicsPort:context flipped:NO]];
            [drawString drawInRect:drawRect withAttributes:attributes];
            [NSGraphicsContext restoreGraphicsState];
            CGContextRestoreGState(context);
            
            NSRect rect = [self integralRect:[annotationWidget bounds] onPage:[annotationWidget page]];
            CGFloat lineWidth = [self unitWidthOnPage:[annotationWidget page]];
            CGContextSaveGState(context);
            CGColorRef color = [NSColor blackColor].CGColor;
            CGContextSetStrokeColorWithColor(context, color);
            CGContextStrokeRectWithWidth(context, CGRectInset(NSRectToCGRect(rect), 0,0), lineWidth);
        }
    } else if(CNoteToolMode== _toolMode && _annotationType == CAnnotationTypeLink && [annotation isKindOfClass:[CPDFLinkAnnotation class]]) {
        CGContextSaveGState(context);
        NSMutableParagraphStyle *paragraphStyle = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
        paragraphStyle.lineBreakMode = NSLineBreakByWordWrapping;
        paragraphStyle.alignment = NSTextAlignmentLeft;
        NSColor *backgroundColor = [NSColor clearColor];
        
        NSDictionary *attributes = @{NSFontAttributeName : [NSFont systemFontOfSize:12],
                                     NSForegroundColorAttributeName : [NSColor whiteColor],
                                     NSBackgroundColorAttributeName : backgroundColor,
                                     NSParagraphStyleAttributeName : paragraphStyle};
        
        NSString *drawString = NSLocalizedString(@"No Destination", nil);
        CPDFDestination *destination = [(CPDFLinkAnnotation *)annotation destination];
        if(destination) {
            CPDFPage *page = destination.page;
            NSString * url = [(CPDFLinkAnnotation *)annotation URL];
            
            if(destination.page) {
                NSUInteger index = [self.document indexForPage:page] + 1;
                drawString = [NSString stringWithFormat:@"%@ %@",NSLocalizedString(@"to Page",nil),@(index)];
            } else if(url.length > 0) {
                drawString = url;
            }
        }
        drawString = [drawString getMaxStringWithBounds:annotation.bounds attributes:attributes];
        
        CGSize size = [drawString sizeWithAttributes:attributes];
        CGRect drawRect = annotation.bounds;
        drawRect.origin.y += (drawRect.size.height - size.height)/2.0;
        drawRect.origin.x += (drawRect.size.width - size.width)/2.0;
        drawRect.size.height = size.height;
        drawRect.size.width = size.width;
        
        CGContextSaveGState(context);
        [NSGraphicsContext setCurrentContext:[NSGraphicsContext graphicsContextWithGraphicsPort:context flipped:NO]];
        CGContextSetFillColorWithColor(context, [NSColor blueColor].CGColor);
        CGContextFillRect(context,annotation.bounds);
        CGContextRestoreGState(context);
        
        [NSGraphicsContext saveGraphicsState];
        [drawString drawInRect:drawRect withAttributes:attributes];
        [NSGraphicsContext restoreGraphicsState];
        CGContextRestoreGState(context);
        

    }
}

- (void)setAddStampObject:(CStampSignatureObject *)stampObject keepToolModel:(BOOL)isToolModel {
    if (CAnnotationTypeStamp == self.annotationType ||
        CAnnotationTypeSignSignature == self.annotationType) {
        self.stampObject = stampObject;
        self.isStampModel = isToolModel;
    }
}

- (void)addAnnotationWithImage:(NSImage *)image page:(CPDFPage *)page point:(NSPoint)point {
    NSRect bounds = NSZeroRect;
    CPDFSelection *selection = [self currentSelection];
    
    CGFloat defaultWidth = 360;
    CGFloat defaultHeight = 90;
    NSSize defaultSize = ([page rotation] % 180 == 0) ? NSMakeSize(defaultWidth, defaultHeight) : NSMakeSize(defaultHeight, defaultWidth);

    bounds = CPDFListViewRectFromCenterAndSize(point, defaultSize);
    
    // Make sure it fits in the page
    bounds = CPDFListViewConstrainRect(bounds, [page boundsForBox:[self displayBox]]);

    if (page != nil) {
        BOOL isInitial = NSEqualSizes(bounds.size, NSZeroSize) && selection == nil;

        // new note added by note tool mode, don't add actual zero sized notes
        if (isInitial)
            bounds = CPDFListViewRectFromCenterAndSquareSize(bounds.origin, 8.0);
        
        CGFloat borderDefaultWidth = image.size.width;
        CGFloat borderScale = borderDefaultWidth/image.size.height;

         if (bounds.size.width/bounds.size.height > borderScale) {
             bounds.size.height = bounds.size.height;
             bounds.size.width  = bounds.size.height*borderScale;
         } else {
             bounds.size.width  = bounds.size.width;
             bounds.size.height = bounds.size.width/borderScale;
         }
        
        CPDFListStampAnnotation *newAnnotation = [[CPDFListStampAnnotation alloc] initWithDocument:self.document image:image];
        newAnnotation.bounds = bounds;
        [newAnnotation setBorderBoundsWithPImage:image];

        [self addAnnotation:newAnnotation toPage:page];
        [[self undoManager] setActionName:NSLocalizedString(@"Add Note", @"Undo action name")];
        
        [self addActiveAnnotations:@[newAnnotation]];
        [self setNeedsDisplayAnnotation:newAnnotation];
    }
    else NSBeep();
}

- (void)updateActiveAnnotations:(NSArray<CPDFAnnotation *> *)activeAnnotations {
    if(activeAnnotations) {
        NSArray *selectTure = [activeAnnotations filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"SELF in %@", self.activeAnnotations]];
        
        BOOL isSame = NO;
        if(self.activeAnnotations.count == activeAnnotations.count && self.activeAnnotations.count == selectTure.count) isSame = YES;
        
        if(!isSame) {
            self.activeAnnotations = [NSMutableArray arrayWithArray:activeAnnotations];
            
            if([self.pdfListViewDelegate respondsToSelector:@selector(PDFListViewChangeatioActiveAnnotations:forActiveAnnotations:)])
                [self.pdfListViewDelegate PDFListViewChangeatioActiveAnnotations:self forActiveAnnotations:self.activeAnnotations];
            
            dispatch_async(dispatch_get_main_queue(), ^{
                [[NSNotificationCenter defaultCenter] postNotificationName:CPDFListViewActiveAnnotationsChangeNotification object:self];
            });
        }
    } else if (!activeAnnotations && self.activeAnnotations.count > 0) {
        [self.activeAnnotations removeAllObjects];
        if([self.pdfListViewDelegate respondsToSelector:@selector(PDFListViewChangeatioActiveAnnotations:forActiveAnnotations:)])
            [self.pdfListViewDelegate PDFListViewChangeatioActiveAnnotations:self forActiveAnnotations:self.activeAnnotations];
        
        dispatch_async(dispatch_get_main_queue(), ^{
            [[NSNotificationCenter defaultCenter] postNotificationName:CPDFListViewActiveAnnotationsChangeNotification object:self];
        });
    }
}

- (void)addActiveAnnotations:(NSArray<CPDFAnnotation *> *)activeAnnotations {
    BOOL isContains = YES;
    for (CPDFAnnotation *annotation in activeAnnotations) {
        if(![self.activeAnnotations containsObject:annotation]) {
            [self.activeAnnotations addObject:annotation];
            isContains = NO;
        }
    }
    
    if(!isContains) {
        if([self.pdfListViewDelegate respondsToSelector:@selector(PDFListViewChangeatioActiveAnnotations:forActiveAnnotations:)])
            [self.pdfListViewDelegate PDFListViewChangeatioActiveAnnotations:self forActiveAnnotations:self.activeAnnotations];
        
        dispatch_async(dispatch_get_main_queue(), ^{
            [[NSNotificationCenter defaultCenter] postNotificationName:CPDFListViewActiveAnnotationsChangeNotification object:self];
        });
    }
}

- (void)removeActiveAnnotations:(NSArray<CPDFAnnotation *> *)removeAnnotations {
    BOOL isContains = NO;
    for (CPDFAnnotation *annotation in removeAnnotations) {
        if([self.activeAnnotations containsObject:annotation]) {
            [self.activeAnnotations removeObject:annotation];
            isContains = YES;
        }
    }
    
    if(isContains) {
        if([self.pdfListViewDelegate respondsToSelector:@selector(PDFListViewChangeatioActiveAnnotations:forActiveAnnotations:)])
            [self.pdfListViewDelegate PDFListViewChangeatioActiveAnnotations:self forActiveAnnotations:self.activeAnnotations];
        
        dispatch_async(dispatch_get_main_queue(), ^{
            [[NSNotificationCenter defaultCenter] postNotificationName:CPDFListViewActiveAnnotationsChangeNotification object:self];
        });
    }
}

- (void)deleteAnnotations:(NSArray<CPDFAnnotation *> *)annotations {
    
}

- (void)editAnnotation:(CPDFAnnotation *)annotation {
    if ([annotation isKindOfClass:[CPDFFreeTextAnnotation class]]) {
        [self editAnnotationFreeText:(CPDFFreeTextAnnotation *)annotation];
        [[self window] makeFirstResponder:self];
        
        [self setNeedsDisplayAnnotation:annotation];
    } else {
        if([self.pdfListViewDelegate respondsToSelector:@selector(PDFListViewEditAnnotation:forAnnotation:)]) {
            [self.pdfListViewDelegate PDFListViewEditAnnotation:self forAnnotation:annotation];
        } else {
            [CPDFListView cancelPreviousPerformRequestsWithTarget:self selector:@selector(showHUDHint:) object:self.hoverAnnotation];

            if (!self.popOver) {
                _popOver = [[NSPopover alloc] init];
            }
            __block typeof(self) blockSelf = self;
            _popOver.delegate = self;
            CPDFListEditAnnotationViewController *vc = [[CPDFListEditAnnotationViewController alloc] initWithNibName:@"CPDFListEditAnnotationViewController" bundle:[NSBundle mainBundle] annotation:annotation];
            _popOver.contentViewController = vc;
            vc.closeCallBack = ^{
                [blockSelf.popOver close];
            };
            
            vc.changeColorCallBack = ^{
                blockSelf.popOver.backgroundColor = annotation.color?:[NSColor whiteColor];
            };
            if([annotation isKindOfClass:[CPDFMarkupAnnotation class]] ||
               [annotation isKindOfClass:[CPDFLineAnnotation class]] ||
               [annotation isKindOfClass:[CPDFSquareAnnotation class]] ||
               [annotation isKindOfClass:[CPDFCircleAnnotation class]] ||
               [annotation isKindOfClass:[CPDFTextAnnotation class]]) {
                _popOver.backgroundColor = annotation.color?:[NSColor whiteColor];
            } else {
                _popOver.backgroundColor = [NSColor whiteColor];
            }
            _popOver.animates = YES;
            _popOver.behavior = NSPopoverBehaviorTransient;
            [_popOver showRelativeToRect:[self convertRect:annotation.bounds fromPage:annotation.page] ofView:self preferredEdge:NSMaxXEdge];
        }
    }
    
}

- (void)rotateStampAnnotation:(CPDFListStampAnnotation *)annotation rotateAngle:(NSInteger)angle {
    if([annotation isKindOfClass:[CPDFListStampAnnotation class]]) {
        CPDFListStampAnnotation *stampAnnotation = (CPDFListStampAnnotation *)annotation;
        NSInteger rotation = stampAnnotation.rotation;
        rotation = rotation - angle;
        
        if (rotation < 0) {
            rotation += 360;
        } else if (rotation >= 360) {
            rotation-=360;
        }

        [annotation setRotation:rotation];
         rotation = [annotation appearanceStreamRotation];

        
        [self setNeedsDisplayAnnotationViewForPage:annotation.page];
        
        [[[self undoManager] prepareWithInvocationTarget:self] rotateStampAnnotation:annotation rotateAngle:-angle];
    }
}

- (void)rotateSignatureAnnotation:(CPDFListSignatureAnnotation *)annotation rotateAngle:(NSInteger)angle {
    if([annotation isKindOfClass:[CPDFListSignatureAnnotation class]]) {
        CPDFListSignatureAnnotation *signatureAnnotation = (CPDFListSignatureAnnotation *)annotation;
        NSInteger rotation = signatureAnnotation.rotation;
        rotation = rotation - angle;
        
        if (rotation < 0) {
            rotation += 360;
        } else if (rotation >= 360) {
            rotation-=360;
        }

        [signatureAnnotation setRotation:rotation];
         rotation = [signatureAnnotation appearanceStreamRotation];

        
        [self setNeedsDisplayAnnotationViewForPage:annotation.page];
        
        [[[self undoManager] prepareWithInvocationTarget:self] rotateSignatureAnnotation:annotation rotateAngle:-angle];
    }
}

- (void)addAnnotation:(CPDFAnnotation *)annotation toPage:(CPDFPage *)page {
    [[[self undoManager] prepareWithInvocationTarget:self] removeAnnotation:annotation];
    
    [annotation setModificationDate:[NSDate date]];
    //widget设置作者与fieldName冲突
    if (![annotation isKindOfClass:[CPDFWidgetAnnotation class]]) {
        [annotation setUserName:CPDFKitShareConfig.annotationAuthor?:NSFullUserName()];
    }
    [page addAnnotation:annotation];
    [[self undoManager] setActionName:NSLocalizedString(@"Add Note", @"Undo action name")];
        
    dispatch_async(dispatch_get_main_queue(), ^{
        [[NSNotificationCenter defaultCenter] postNotificationName:CPDFListViewDidAddAnnotationNotification object:self userInfo:[NSDictionary dictionaryWithObjectsAndKeys:page, CPDFListViewPageKey, annotation, CPDFListViewAnnotationKey, nil]];
    });
    
    
    if([self.pdfListViewDelegate respondsToSelector:@selector(PDFListViewAddAnnotations:forAddAnnotations:inPage:)])
        [self.pdfListViewDelegate PDFListViewAddAnnotations:self forAddAnnotations:@[annotation] inPage:page];
}

- (void)removeAnnotation:(CPDFAnnotation *)annotation {
    CPDFAnnotation *wasAnnotation = annotation;
    CPDFPage *page = wasAnnotation.page;
    
    [[[self undoManager] prepareWithInvocationTarget:self] addAnnotation:wasAnnotation toPage:page];
    
    if([self.activeAnnotations containsObject:wasAnnotation]) {
        [self.activeAnnotations removeObject:wasAnnotation];
    }
    [self setNeedsDisplayAnnotation:wasAnnotation];
    [page removeAnnotation:wasAnnotation];
    [self annotationsChangedOnPage:page];
    
    dispatch_async(dispatch_get_main_queue(), ^{
        [[NSNotificationCenter defaultCenter] postNotificationName:CPDFListViewDidRemoveAnnotationNotification object:self
                                                          userInfo:[NSDictionary dictionaryWithObjectsAndKeys:wasAnnotation, CPDFListViewAnnotationKey, page, CPDFListViewPageKey, nil]];
    });
    
    if([self.pdfListViewDelegate respondsToSelector:@selector(PDFListViewRemoveAnnotations:forRemoveAnnotations:inPage:)])
        [self.pdfListViewDelegate PDFListViewRemoveAnnotations:self forRemoveAnnotations:@[annotation] inPage:page];
}

- (void)drawPage:(CPDFPage *)pdfPage toContext:(CGContextRef)context {
    
    [super drawPage:pdfPage toContext:context];
    
    [self drawSelectionForPage:pdfPage inContext:context];
    
    if(self.activeAnnotations.count > 1) {
        CGRect selectAnnotationBounds = [self selectionMultipleAnnotationBoundsWithPage:pdfPage];
        
        NSRect rect = selectAnnotationBounds;

        CGFloat lineWidth = [self unitWidthOnPage:pdfPage];
        CGContextSaveGState(context);
        CGColorRef color = [CPDFListViewConfig defaultManager].annotationBorderColor.CGColor;
        CGContextSetStrokeColorWithColor(context, color);
        CGContextStrokeRectWithWidth(context, CGRectInset(NSRectToCGRect(rect), 0,0), lineWidth);
        CGContextRestoreGState(context);
        CGContextSaveGState(context);
        CPDFListViewDrawResizeHandles(context, rect, 4.0 * lineWidth, YES);
        CGContextRestoreGState(context);
    }
    
    [self.activeAnnotations enumerateObjectsUsingBlock:^(CPDFAnnotation *annotation, NSUInteger idx, BOOL * _Nonnull stop) {
        if (annotation.page && [annotation.page isEqual:pdfPage]) {
            [annotation drawSelectionHighlightForView:self inContext:context isHover:NO];
        }
    }];
    
    [self.selectAnnotations enumerateObjectsUsingBlock:^(CPDFAnnotation *annotation, NSUInteger idx, BOOL * _Nonnull stop) {
        if (annotation.page && [annotation.page isEqual:pdfPage]) {
            [annotation drawSelectionHighlightForView:self inContext:context isHover:NO];
        }
    }];
    
    if (self.hoverAnnotation.page && [self.hoverAnnotation.page isEqual:pdfPage] && ![self.activeAnnotations containsObject:self.hoverAnnotation]) {
        [self.hoverAnnotation drawSelectionHighlightForView:self inContext:context isHover:YES];
    }
    
    if(!CGRectEqualToRect(self.multiplSelectBounds, CGRectZero)) {
        @synchronized (self) {
            CGContextSetLineCap(context, kCGLineCapRound);
            CGContextSetLineWidth(context, 1.0);
            CGContextSetStrokeColorWithColor(context, [NSColor redColor].CGColor);
            CGContextBeginPath(context);
            CGContextMoveToPoint(context, self.multiplSelectBounds.origin.x, self.multiplSelectBounds.origin.y);
            CGContextAddLineToPoint(context, self.multiplSelectBounds.origin.x+ self.multiplSelectBounds.size.width,self.multiplSelectBounds.origin.y);
            CGContextAddLineToPoint(context, self.multiplSelectBounds.origin.x + self.multiplSelectBounds.size.width,self.multiplSelectBounds.origin.y + + self.multiplSelectBounds.size.height);
            CGContextAddLineToPoint(context, self.multiplSelectBounds.origin.x,self.multiplSelectBounds.origin.y + + self.multiplSelectBounds.size.height);
            CGContextClosePath(context);
            CGFloat lengths[] = {5,5};
            CGContextSetLineDash(context, 0, lengths,2);
            CGContextStrokePath(context);
        }
    }
    
    if (self.dragHoverPoints.count > 0) {
        NSInteger count = 2;
        CGContextSaveGState(context);
        for (NSUInteger i=0; i+count <= self.dragHoverPoints.count;) {
            NSPoint ptlt = [self.dragHoverPoints[i++] pointValue];
            NSPoint ptrt = [self.dragHoverPoints[i++] pointValue];
            
            CGContextMoveToPoint(context, ptlt.x, ptlt.y);
            CGContextAddLineToPoint(context, ptrt.x,ptrt.y);
        }
        
        CGContextSetStrokeColorWithColor(context, [CPDFListViewConfig defaultManager].dragHoverColor.CGColor);
        CGContextDrawPath(context, kCGPathStroke);
        CGContextRestoreGState(context);
    }
    
}

- (void)drawSelectionForPage:(CPDFPage *)pdfPage inContext:(CGContextRef)context {
    NSRect rect;
    NSUInteger pageIndex;
    @synchronized (self) {
        pageIndex = self.selectionPageIndex;
        rect = self.selectionRect;
    }
    if (pageIndex != NSNotFound) {
        BOOL isWidget = NO;
        for (CPDFAnnotation * annotation in self.activeAnnotations) {
            if ([annotation isForm]) {
                isWidget = YES;
                break;
            }
        }
        
        if (isWidget &&
            _toolMode != CFormToolMode) {
            return;
        }
        
        NSRect bounds = [pdfPage boundsForBox:[self displayBox]];
        CGFloat radius = HANDLE_SIZE * [self unitWidthOnPage:pdfPage];
        CGColorRef color = CGColorCreateGenericGray(0.0, 0.6);
        CGContextSetFillColorWithColor(context, color);
        CGColorRelease(color);
        CGContextBeginPath(context);
        CGContextAddRect(context, NSRectToCGRect(bounds));
        CGContextAddRect(context, NSRectToCGRect(rect));
        CGContextEOFillPath(context);
        if ([pdfPage pageIndex] != pageIndex) {
            color = CGColorCreateGenericGray(0.0, 0.3);
            CGContextSetFillColorWithColor(context, color);
            CGColorRelease(color);
            CGContextFillRect(context, NSRectToCGRect(rect));
        }
        CPDFListViewDrawResizeHandles(context, rect, radius, YES);
    }
}

#pragma mark - NSPopoverDelegate

- (void)popoverWillClose:(NSNotification *)notification {
    NSPopover *popover = notification.object;
    
    if([popover.contentViewController isKindOfClass:[CPDFListEditAnnotationViewController class]]) {
        CPDFListEditAnnotationViewController *listEditAnnotationViewController = (CPDFListEditAnnotationViewController *)popover.contentViewController;
        CPDFAnnotation *annotation = listEditAnnotationViewController.annotation;
        annotation.contents = listEditAnnotationViewController.contentString;
        [self setNeedsDisplayAnnotation:annotation];

    }
    self.popOver = nil;
}

@end