//
//  KMSignatureWindowController.m
//  PDF Reader Premium
//
//  Created by wangshuai on 14/12/3.
//  Copyright (c) 2014年 zhangjie. All rights reserved.
//

#import "KMSignatureWindowController.h"
#import "KMDrawView.h"
#import "KMSignatureManager.h"
#import "NSImage+CustomImage.h"
#import "KMPDFSignatureImageView.h"
#import "KMPDFSignatureTextView.h"
#import "KMPopUpButton.h"
#import "NSMenu+Category.h"
#import "CPDFListView.h"
#import "NSButton+TitleColor.h"
#if VERSION_DMG
#import <PDF_Master-Swift.h>
#else
#import <PDF_Master-Swift.h>
#endif
#import "KMCoverButton.h"
#import "KMSignatureHelpViewController.h"

static NSMutableArray * recentlyFonts;

#pragma mark KMSignatureColorButton
@interface KMSignatureColorButton : NSButton

@property (nonatomic,retain) NSColor *circleColor;
@property (nonatomic,retain) NSImage *drawImage;
@end

@implementation KMSignatureColorButton

-(void)setCircleColor:(NSColor *)circleColor
{
    _circleColor = circleColor;
    [self setNeedsDisplay:YES];
}

-(id)initWithCoder:(NSCoder *)coder {
    if (self == [super initWithCoder:coder]) {
        self.wantsLayer = YES;
        self.layer.cornerRadius = 12;
        self.layer.masksToBounds = YES;
        self.layer.borderWidth = 1.5;
    }
    return self;
}

-(void)drawRect:(NSRect)rect
{
    [super drawRect:rect];
    if (_circleColor) {
        NSBezierPath *path3 = [NSBezierPath bezierPathWithOvalInRect:NSMakeRect(3, 3, rect.size.width - 6,  rect.size.height - 6)];
        [self.circleColor set];
        [path3 fill];
    } else if (self.drawImage) {
        [self.drawImage drawInRect:CGRectMake(3,3,rect.size.width -6,rect.size.height - 6)
                         fromRect:NSZeroRect
                        operation:NSCompositeSourceOver
                          fraction:1.0];
    }
}

@end


#pragma mark KMSignatureButton
@interface KMSignatureButton : NSButton

@end

@implementation KMSignatureButton

- (NSMenu*)menuForEvent:(NSEvent *)theEvent
{
    NSMenu *menu = [[NSMenu alloc] initWithTitle:@""];
    NSMenuItem *item = [menu addItemWithTitle:NSLocalizedString(@"Delete", nil) action:@selector(delete) keyEquivalent:@""];
    item.target = self;
    
    item = [menu addItemWithTitle:NSLocalizedString(@"Export", @"Menu item title") action:nil keyEquivalent:@""];
    
    NSMenu * tSubMenu = [[NSMenu alloc] init];
    
    NSMenuItem *tMenuItem = [tSubMenu insertItemWithTitle:NSLocalizedString(@"PNG", @"Menu item title") action:@selector(export:) target:self atIndex:0];
    tMenuItem.tag = 0;
    
    tMenuItem = [tSubMenu insertItemWithTitle:NSLocalizedString(@"JPG", @"Menu item title") action:@selector(export:) target:self atIndex:1];
    tMenuItem.tag = 1;

    tMenuItem = [tSubMenu insertItemWithTitle:NSLocalizedString(@"PDF", @"Menu item title") action:@selector(export:) target:self atIndex:2];
    tMenuItem.tag = 2;
    
    item.submenu = tSubMenu;
    
    return menu;
}

- (void)delete
{
    [[NSNotificationCenter defaultCenter] postNotificationName:@"kKMSignatureDeleteNotification" object:[NSNumber numberWithInteger:self.tag]];
}

- (void)export:(NSMenuItem *)sender
{
    NSInteger index = self.tag;
    NSInteger type = sender.tag;
    
    KMSignatureManager *signatureManager = [[KMSignatureManager alloc] init];
    [signatureManager loadAllSignatureList];
    KMSignature *signature = signatureManager.sigatureList[index];
    NSImage *image = signature.pathsImage;
    
    if (type == 0) {
        NSData *data = image.TIFFRepresentation;
        NSBitmapImageRep *imageRep = [NSBitmapImageRep imageRepWithData:data];
        [imageRep setSize:image.size];
        NSData *imageData = [imageRep representationUsingType:NSPNGFileType properties:@{}];
        
        NSSavePanel *savePanel = [NSSavePanel savePanel];
        savePanel.allowedFileTypes = @[@"png"];
        [savePanel beginSheetModalForWindow:self.window completionHandler:^(NSInteger result) {
            if (result) {
                if ([imageData writeToURL:savePanel.URL atomically:YES]) {
                    [[NSWorkspace sharedWorkspace] selectFile:savePanel.URL.path
                                     inFileViewerRootedAtPath:@""];
                }
            }
        }];
    } else if (type == 1) {
        NSData *data = image.TIFFRepresentation;
        NSBitmapImageRep *imageRep = [NSBitmapImageRep imageRepWithData:data];
        [imageRep setSize:image.size];
        NSData *imageData = [imageRep representationUsingType:NSJPEGFileType properties:@{}];
        
        NSSavePanel *savePanel = [NSSavePanel savePanel];
        savePanel.allowedFileTypes = @[@"jpg"];
        [savePanel beginSheetModalForWindow:self.window completionHandler:^(NSInteger result) {
            if (result) {
                if ([imageData writeToURL:savePanel.URL atomically:YES]) {
                    [[NSWorkspace sharedWorkspace] selectFile:savePanel.URL.path
                                     inFileViewerRootedAtPath:@""];
                }
            }
        }];
    } else {
        CPDFDocument *pdf = [[CPDFDocument alloc] init];
//        CPDFPage *page = [[CPDFPage alloc] initWithImage:image];
        
        NSString *signatureImagePath =[[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0] stringByAppendingPathComponent:@"signatureImage.png"];
        NSData *data = image.TIFFRepresentation;
        [data writeToURL:[NSURL fileURLWithPath:signatureImagePath] atomically:YES];
        [pdf insertPage:image.size withImage:signatureImagePath atIndex:0];
        
        NSSavePanel *savePanel = [NSSavePanel savePanel];
        savePanel.allowedFileTypes = @[@"pdf"];
        [savePanel beginSheetModalForWindow:[NSApp mainWindow] completionHandler:^(NSInteger result) {
            if (result) {
                if ([pdf writeToURL:savePanel.URL]) {
                    [[NSWorkspace sharedWorkspace] selectFile:savePanel.URL.path
                                     inFileViewerRootedAtPath:@""];
                }
            }
        }];
    }
}

@end

#pragma mark KMSignatureWindowController

static KMSignatureWindowController *windowController_signature;

@interface KMSignatureWindowController () <KMDrawViewDelegate,KMChangeSignatureTextDelegate, KMSelectPopButtonDelegate>

@property (weak) IBOutlet NSButton    *cancelBtton;
@property (weak) IBOutlet NSButton    *applyButton;

@property (nonatomic, strong) KMDesignButton *cancelButtonVC;
@property (nonatomic, strong) KMDesignButton *applyButtonVC;

@property (weak) IBOutlet NSButton    *clearButton;

@property (strong) IBOutlet NSView *signTypeView;
@property (weak) IBOutlet NSButton *inputButton;
@property (weak) IBOutlet NSButton *drawingButton;
@property (weak) IBOutlet NSButton *pictureButton;
@property (strong) IBOutlet NSView *signTypeBackView;

@property (weak) IBOutlet NSTextField *trackpadLabel;

@property (weak) IBOutlet NSBox *contentBox;

@property (weak) IBOutlet NSTextField *titleLabel;

//keyboard
@property (strong) IBOutlet NSView *inputView;
@property (weak) IBOutlet KMPDFSignatureTextView *keyboardView;
@property (weak) IBOutlet NSPopUpButton *fontBox;
@property (strong) IBOutlet NSButton *keyboardColorBtn1;
@property (strong) IBOutlet NSButton *keyboardColorBtn2;
@property (strong) IBOutlet NSButton *keyboardColorBtn3;
@property (strong) IBOutlet NSButton *keyboardColorBtn4;
@property (strong) IBOutlet NSView *keyboardColorSelView;
@property (weak) IBOutlet KMSignatureColorButton *textColorButton;

@property (nonatomic, strong) KMDesignSelect *fontVC;
@property (nonatomic, strong) NSArray *fontValues;
@property (nonatomic, copy) NSString *fontDefaultValue;

//Draw
@property (strong) IBOutlet NSView *drawingView;
@property (weak) IBOutlet KMDrawView  *drawView;
@property (weak) IBOutlet NSButton    *trackpadButton;
@property (nonatomic, strong) KMDesignButton *trackpadButtonVC;

@property (strong) IBOutlet NSPopUpButton *drawSizeBox;
@property (strong) IBOutlet NSView *colorBGView;
@property (strong) IBOutlet NSView *drawColorSelView;
@property (strong) IBOutlet NSButton *drawColorBtn1;
@property (strong) IBOutlet NSButton *drawColorBtn2;
@property (strong) IBOutlet NSButton *drawColorBtn3;
@property (strong) IBOutlet NSButton *drawColorBtn4;

@property (nonatomic, strong) KMDesignSelect *drawSizeVC;
@property (nonatomic, strong) NSArray *drawSizeValues;
@property (nonatomic, copy) NSString *drawSizeDefaultValue;

@property (weak) IBOutlet NSView *drawTipView;
@property (weak) IBOutlet NSTextField *drawTipLabel;


//Picture
@property (strong) IBOutlet NSView *pictureView;
@property (weak) IBOutlet KMPDFSignatureImageView *pictureBackView;
@property (strong) IBOutlet NSButton *pictureClearBackBtn;

@property (nonatomic, strong) KMDesignButton *pictureClearBackBtnVC;
@property (weak) IBOutlet KMCoverButton *pictureHelpButton;

@property (nonatomic,strong) KMSignature   *selectedSignature;
@property (nonatomic,strong) NSMenuItem *selectItem;
@property (nonatomic,assign) kKMPDFSignatureType   type;
@property (nonatomic,copy)  void (^handler)(KMSignature*);

@property (nonatomic, strong) NSPopover *popover;

@end

@implementation KMSignatureWindowController

- (id)init
{
    if (self = [super initWithWindowNibName:@"KMSignatureWindowController"]) {
        NSMutableArray *fonts = [NSMutableArray array];
        for (NSDictionary *dic in [CPDFAnnotationModel supportFonts]) {
            [fonts addObject:dic.allKeys.firstObject];
        }
        self.fontValues = fonts.copy;
        self.fontDefaultValue = @"Helvetica";
        
        self.drawSizeValues = @[@"1.0",@"2.0",@"4.0",@"6.0",@"8.0"];
        self.drawSizeDefaultValue = @"2.0";
    }
    return self;
}

- (void)dealloc
{
    _drawView.delegate = nil;
    _keyboardView.delegate = nil;
    [[NSNotificationCenter defaultCenter] removeObserver:self];
    [[NSColorPanel sharedColorPanel] setTarget:nil];
    [[NSColorPanel sharedColorPanel] setAction:nil];
}

#pragma mark - View Methods

- (void)windowDidLoad {
    [super windowDidLoad];
    
    __weak typeof (self) weakSelf = self;
    
    self.type = kKMPDFSignatureType_Text;
    
//    self.textColorButton.drawImage = self.mouseColorButton.drawImage = [NSImage imageNamed:@"view_color"];
    self.cancelBtton.title = @"";
    self.cancelButtonVC = [[KMDesignButton alloc] initWithType:DesignButtonTypeText];
    [self.cancelBtton addSubview:self.cancelButtonVC.view];
    self.cancelButtonVC.view.frame = self.cancelBtton.bounds;
    self.cancelButtonVC.view.autoresizingMask = NSViewWidthSizable | NSViewHeightSizable;
    self.cancelButtonVC.stringValue = NSLocalizedString(@"Cancel", nil);
    self.cancelButtonVC.target = self;
    self.cancelButtonVC.action = @selector(dismissSheet:);
    [self.cancelButtonVC buttonWithType:TokenButtonTypeSec_Icon size:TokenButtonSizeM height:nil];
    
    [self.clearButton setTarget:self];
    [self.clearButton setAction:@selector(clearButton_Click:)];
    self.clearButton.hidden = YES;
    
    self.applyButton.title = @"";
    self.applyButtonVC = [[KMDesignButton alloc] initWithType:DesignButtonTypeText];
    [self.applyButton addSubview:self.applyButtonVC.view];
    self.applyButtonVC.view.frame = self.applyButton.bounds;
    self.applyButtonVC.view.autoresizingMask = NSViewWidthSizable | NSViewHeightSizable;
    self.applyButtonVC.stringValue = NSLocalizedString(@"Save", nil);
    self.applyButtonVC.target = self;
    self.applyButtonVC.action = @selector(applyButton_Click:);
    [self.applyButtonVC buttonWithType:TokenButtonTypeCta size:TokenButtonSizeM height:nil];
    self.applyButtonVC.enabled = NO;
    
    
    self.contentBox.wantsLayer = YES;
    self.contentBox.layer.backgroundColor = [NSColor clearColor].CGColor;
    self.contentBox.borderType = NSNoBorder;
    
    self.inputButton.bordered = self.drawingButton.bordered = self.pictureButton.bordered = NO;
    
    //Keyboard
    self.inputView.wantsLayer = YES;
    self.inputView.layer.backgroundColor = [NSColor whiteColor].CGColor;
    
    self.keyboardView.wantsLayer = YES;
    self.keyboardView.layer.backgroundColor = [NSColor colorWithRed:247/255. green:248/255. blue:250/255. alpha:1.].CGColor;
    self.keyboardView.changeSignatureTextCallback = ^(BOOL isTure) {
        if (isTure) {
            weakSelf.clearButton.hidden = NO;
            weakSelf.clearButton.title = NSLocalizedString(@"Clear", nil);
        } else {
            weakSelf.clearButton.hidden = YES;
        }
    };
    
    self.keyboardColorBtn1.wantsLayer = self.keyboardColorBtn2.wantsLayer = self.keyboardColorBtn3.wantsLayer = self.keyboardColorBtn4.wantsLayer = YES;
    self.keyboardColorBtn1.layer.backgroundColor = [NSColor colorWithRed:37/255.0f green:38/255.0f blue:41/255.0f alpha:1.0f].CGColor;
    self.keyboardColorBtn2.layer.backgroundColor = [NSColor colorWithRed:252/255.0f green:31/255.0f blue:31/255.0f alpha:1.0f].CGColor;
    self.keyboardColorBtn3.layer.backgroundColor = [NSColor colorWithRed:39/255.0f green:60/255.0f blue:98/255.0f alpha:1.0f].CGColor;
    self.keyboardColorBtn4.layer.backgroundColor = [NSColor colorWithRed:148/255.0f green:152/255.0f blue:156/255.0f alpha:1.0f].CGColor;
    self.keyboardColorBtn1.layer.cornerRadius = self.keyboardColorBtn2.layer.cornerRadius = self.keyboardColorBtn3.layer.cornerRadius = self.keyboardColorBtn4.layer.cornerRadius = 10.;
    self.keyboardColorBtn1.layer.masksToBounds = self.keyboardColorBtn2.layer.masksToBounds = self.keyboardColorBtn3.layer.masksToBounds = self.keyboardColorBtn4.layer.masksToBounds = YES;
    self.keyboardColorSelView.wantsLayer = YES;
    self.keyboardColorSelView.layer.backgroundColor = [NSColor colorWithRed:206/255.0f green:208/255.0f blue:212/255.0f alpha:0.6].CGColor;
    self.keyboardColorSelView.layer.borderWidth = 1.;
    self.keyboardColorSelView.layer.borderColor = [NSColor colorWithRed:206/255.0f green:208/255.0f blue:212/255.0f alpha:1.0f].CGColor;
    self.keyboardColorSelView.layer.cornerRadius = 4.;
    self.keyboardColorSelView.layer.masksToBounds = YES;
    
    [self colorTextButtonAction:self.keyboardColorBtn1];
    
    //Draw
    self.drawView.delegate = self;
    self.drawView.wantsLayer = YES;
    self.drawView.strokeRadius = [self.drawSizeDefaultValue floatValue];
    self.drawView.layer.cornerRadius = 4.;
    self.drawView.layer.masksToBounds = YES;
    self.drawView.layer.borderWidth = 1.;
    self.drawView.layer.borderColor = [NSColor colorWithRed:223/255. green:225/255. blue:229/255. alpha:1.].CGColor;
    self.drawView.layer.backgroundColor = [NSColor colorWithRed:247/255. green:248/255. blue:250/255. alpha:1.].CGColor;
    
    self.drawColorBtn1.wantsLayer = self.drawColorBtn2.wantsLayer = self.drawColorBtn3.wantsLayer = self.drawColorBtn4.wantsLayer = YES;
    self.drawColorBtn1.layer.backgroundColor = [NSColor colorWithRed:37/255.0f green:38/255.0f blue:41/255.0f alpha:1.0f].CGColor;
    self.drawColorBtn2.layer.backgroundColor = [NSColor colorWithRed:252/255.0f green:31/255.0f blue:31/255.0f alpha:1.0f].CGColor;
    self.drawColorBtn3.layer.backgroundColor = [NSColor colorWithRed:39/255.0f green:60/255.0f blue:98/255.0f alpha:1.0f].CGColor;
    self.drawColorBtn4.layer.backgroundColor = [NSColor colorWithRed:148/255.0f green:152/255.0f blue:156/255.0f alpha:1.0f].CGColor;
    
    self.drawColorBtn1.layer.cornerRadius = self.drawColorBtn2.layer.cornerRadius = self.drawColorBtn3.layer.cornerRadius = self.drawColorBtn4.layer.cornerRadius = 10.;
    self.drawColorBtn1.layer.masksToBounds = self.drawColorBtn2.layer.masksToBounds = self.drawColorBtn3.layer.masksToBounds = self.drawColorBtn4.layer.masksToBounds = YES;
    self.drawColorSelView.wantsLayer = YES;
    self.drawColorSelView.layer.backgroundColor = [NSColor colorWithRed:206/255.0f green:208/255.0f blue:212/255.0f alpha:0.6].CGColor;
    self.drawColorSelView.layer.borderWidth = 1.;
    self.drawColorSelView.layer.borderColor = [NSColor colorWithRed:206/255.0f green:208/255.0f blue:212/255.0f alpha:1.0f].CGColor;
    self.drawColorSelView.layer.cornerRadius = 4.;
    self.drawColorSelView.layer.masksToBounds = YES;
    
    [self drawColorBtnClicked:self.drawColorBtn1];
    
    for (NSString *pxSize in @[@"0.5",@"1.0",@"1.5",@"2.0",@"2.5",@"3.0"]) {
        NSDictionary *attrited = @{NSFontAttributeName:[NSFont systemFontOfSize:14]};
        NSAttributedString *string = [[NSAttributedString alloc] initWithString:pxSize attributes:attrited];
        NSMenuItem *item = [[NSMenuItem alloc] init];
        item.attributedTitle = string;
        [self.drawSizeBox.menu addItem:item];
    }
    [self.drawSizeBox selectItem:[self.drawSizeBox itemAtIndex:1]];
    [self.drawSizeBox setTitle:@"1.0 pt"];
    
    //Picture
    self.pictureView.wantsLayer = YES;
    self.pictureView.layer.backgroundColor = [NSColor whiteColor].CGColor;
    
    self.pictureBackView.wantsLayer = YES;
    self.pictureBackView.layer.cornerRadius = 4.;
    self.pictureBackView.layer.masksToBounds = YES;
    self.pictureBackView.layer.borderWidth = 1.;
    self.pictureBackView.layer.borderColor = [NSColor colorWithRed:223/255. green:225/255. blue:229/255. alpha:1.].CGColor;
    self.pictureBackView.layer.backgroundColor = [NSColor colorWithRed:247/255. green:248/255. blue:250/255. alpha:1.].CGColor;
    self.pictureBackView.changeSignatureImageCallback = ^(BOOL isTure) {
        if (isTure) {
            weakSelf.applyButtonVC.enabled = YES;
        } else {
            weakSelf.applyButtonVC.enabled = NO;
        }
        if (weakSelf.pictureBackView.signatureImage) {
            weakSelf.clearButton.hidden = NO;
            weakSelf.clearButton.title = NSLocalizedString(@"Reselect", nil);
        } else {
            weakSelf.clearButton.hidden = YES;
        }
    };
    
    [self.trackpadLabel setHidden:YES];
    self.drawTipView.hidden = YES;
        
    self.keyboardView.delegate = self;
    self.drawView.changeDrawCallback = ^(BOOL isTure) {
        if (isTure) {
            weakSelf.applyButtonVC.enabled = YES;
        } else {
            weakSelf.applyButtonVC.enabled = NO;
        }
    };
    self.drawView.touchEndCallback = ^(BOOL isClear) {
        if (isClear) {
            weakSelf.clearButton.hidden = YES;
        } else {
            weakSelf.clearButton.hidden = NO;
            weakSelf.clearButton.title = NSLocalizedString(@"Clear", nil);
        }
    };
    
    [self inputButton_Click:nil];
    
    self.pictureHelpButton.image = [NSImage imageNamed:@"KMImageNameHelpNormal"];
    self.pictureHelpButton.toolTip = @"Remove white background from images";
    self.pictureHelpButton.action = @selector(showHelpTip:);
    self.pictureHelpButton.coverAction = ^(KMCoverButton * _Nonnull button, KMCoverAction action) {
        if (action == KMCoverActionEnter) {
            button.image = [NSImage imageNamed:@"KMImageNameHelpHover"];
//            [weakSelf showHelpTip:button];
        } else if (action == KMCoverActionExit) {
            button.image = [NSImage imageNamed:@"KMImageNameHelpNormal"];
//            [weakSelf dismissHelpTip];
        }
    };
    
    [self localizedString];
    [self setupUI];
}

- (void)setupUI {
    NSString *fontName = @"SFProText-Regular";
    
    self.titleLabel.font = [NSFont fontWithName:@"SFProText-Semibold" size:16];
    self.titleLabel.textColor = [NSColor colorWithRed:37/255.f green:38/255.f blue:41/255.f alpha:1.f];
    
    self.signTypeView.wantsLayer = YES;
    self.signTypeView.layer.backgroundColor = [NSColor colorWithRed:223/255. green:225/255. blue:229/255. alpha:1.].CGColor;
    self.signTypeView.layer.cornerRadius = 4.;
    self.signTypeView.layer.masksToBounds = YES;
    self.signTypeBackView.wantsLayer = YES;
    self.signTypeBackView.layer.cornerRadius = 2.;
    self.signTypeBackView.layer.masksToBounds = YES;
    self.signTypeBackView.layer.backgroundColor = [NSColor whiteColor].CGColor;
    
    for (NSButton *button in @[self.inputButton, self.drawingButton, self.pictureButton]) {
        [button setTitleColor:[NSColor colorWithRed:37/255.f green:38/255.f blue:41/255.f alpha:1.f]];
        button.font = [NSFont fontWithName:fontName size:12];
    }
    
    // Input
    self.fontVC = [[KMDesignSelect alloc] initWithType:SelectTypeCombox];
    [self.fontBox.superview addSubview:self.fontVC.view];
    [self.fontVC.view mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.fontBox);
        make.centerY.equalTo(self.fontBox);
        make.size.mas_equalTo(NSMakeSize(200, 32));
    }];
    self.fontBox.hidden = YES;
    
    [self.fontVC addItemsWithObjectValues:self.fontValues];
    self.fontVC.stringValue = self.fontDefaultValue;
    self.fontVC.delete = self;
    
    // Drawing
    self.drawSizeVC = [[KMDesignSelect alloc] initWithType:SelectTypeCombox];
    [self.drawSizeBox.superview addSubview:self.drawSizeVC.view];
    [self.drawSizeVC.view mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.drawSizeBox);
        make.centerY.equalTo(self.drawSizeBox);
        make.size.mas_equalTo(NSMakeSize(85, 32));
    }];
    self.drawSizeBox.hidden = YES;
    self.drawSizeVC.delete = self;
    NSMutableArray *drawSizes = [NSMutableArray array];
    for (NSString *value in self.drawSizeValues) {
        [drawSizes addObject:[NSString stringWithFormat:@"%@ pt", value]];
    }
    [self.drawSizeVC addItemsWithObjectValues:drawSizes.copy];
    self.drawSizeVC.stringValue = [NSString stringWithFormat:@"%@ pt", self.drawSizeDefaultValue];
    
    self.trackpadButton.title = NSLocalizedString(@"Trackpad", nil);
    self.trackpadButtonVC = [[KMDesignButton alloc] initWithType:DesignButtonTypeCheckBox];
    [self.trackpadButton.superview addSubview:self.trackpadButtonVC.view];
    self.trackpadButtonVC.stringValue = NSLocalizedString(@"Trackpad", nil);
    self.trackpadButtonVC.state = KMDesignTokenStateNorm;
    [self.trackpadButtonVC checkbox_radioWithImageHeight:[[NSLayoutConstraint alloc] init]];
    self.trackpadButtonVC.target = self;
    self.trackpadButtonVC.action = @selector(trackpadButton_Click:);
    
    [self.trackpadButtonVC.view mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.trackpadButton);
        make.centerY.equalTo(self.drawSizeVC.view);
        make.width.mas_equalTo(120);
        make.height.mas_equalTo(22);
    }];
    self.trackpadButton.hidden = YES;
    
    self.drawTipView.wantsLayer = YES;
    self.drawTipView.layer.backgroundColor = [NSColor colorWithRed:189/255.f green:223/255.f blue:253/255.f alpha:1.f].CGColor;
    self.drawTipLabel.stringValue = NSLocalizedString(@"Press any key to disable the touchpad", nil);
    self.drawTipLabel.textColor = [NSColor colorWithRed:37/255.f green:38/255.f blue:41/255.f alpha:1.f];
    self.drawTipLabel.font = [NSFont fontWithName:@"SFProText-Regular" size:14];
    
    // Picture
    self.pictureBackView.emptyTipLbl.textColor = [NSColor colorWithRed:148/255.f green:152/255.f blue:156/255.f alpha:1];
    self.pictureBackView.emptyTipLbl.font = [NSFont fontWithName:fontName size:14];
    
    self.pictureClearBackBtn.title = NSLocalizedString(@"Clear background", nil);
    self.pictureClearBackBtnVC = [[KMDesignButton alloc] initWithType:DesignButtonTypeCheckBox];
    [self.pictureClearBackBtn.superview addSubview:self.pictureClearBackBtnVC.view];
    self.pictureClearBackBtnVC.stringValue = NSLocalizedString(@"Clear background", nil);
    self.pictureClearBackBtnVC.state = KMDesignTokenStateNorm;
    [self.pictureClearBackBtnVC checkbox_radioWithImageHeight:[[NSLayoutConstraint alloc] init]];
    self.pictureClearBackBtnVC.target = self;
    self.pictureClearBackBtnVC.action = @selector(pictureClearBackBtnAction:);

    self.pictureClearBackBtn.hidden = YES;
    [self.pictureClearBackBtnVC.view mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.equalTo(self.pictureClearBackBtn);
    }];
}

- (void)setType:(kKMPDFSignatureType)type {
    _type = type;
    
    CGRect rect = self.signTypeBackView.frame;
    if (_type == kKMPDFSignatureType_Text) {
        rect.origin.x = 1;
    } else if (_type == kKMPDFSignatureType_Ink) {
        rect.origin.x = 2 + 75;
    } else if (_type == kKMPDFSignatureType_Image) {
        rect.origin.x = 2 + 75*2;
    }
    rect.origin.y = (CGRectGetHeight(self.signTypeBackView.superview.frame) - CGRectGetHeight(self.signTypeBackView.frame))/2.;
    self.signTypeBackView.frame = rect;
    
    self.clearButton.hidden = YES;
    if (_type == kKMPDFSignatureType_Text) {
        
    } else if (_type == kKMPDFSignatureType_Ink) {

    } else if (_type == kKMPDFSignatureType_Image) {
        if (self.pictureBackView.signatureImage) {
            self.clearButton.title = NSLocalizedString(@"Reselect", nil);
            self.clearButton.hidden = NO;
        }
    }
}

#pragma mark - mouse
- (void)mouseDown:(NSEvent *)event {
    [self dismissHelpTip];
}

#pragma mark - Private Methods

-(void)localizedString
{
    
    self.titleLabel.stringValue = NSLocalizedString(@"Create Signature", "");

    [self.trackpadButton setTitle:NSLocalizedString(@"Trackpad", nil)];
    [self.clearButton setTitle:NSLocalizedString(@"Clear", nil)];
    [self.trackpadLabel setStringValue:NSLocalizedString(@"Press \"esc\" to disable the Trackpad.", nil)];
    
    NSArray *seletorFonts = @[@"Mistral", @"Bradley Hand", @"Brush Script MT", @"SignPainter", @"Edwardian Script ITC", @"American Typewriter",@"Baoli SC",@"Snell Roundhand", @"Apple Chancery", @"Monotype Corsiva"];
    
    NSArray *fonts = [[NSFontManager sharedFontManager] availableFontFamilies];
    for (NSString *fontName in fonts) {
        NSDictionary *attrited = @{NSFontAttributeName:[NSFont fontWithName:fontName size:12.0]};
        NSAttributedString *string = [[NSAttributedString alloc] initWithString:fontName attributes:attrited];
        NSMenuItem *item = [[NSMenuItem alloc] init];
        item.attributedTitle = string;
        [self.fontBox.menu addItem:item];
    }
    
    NSString * fontName = nil;
    
    if (!recentlyFonts) {
        recentlyFonts = [[NSMutableArray alloc] init];
    }
    if (recentlyFonts.count < 1) {
        for (NSString *name in seletorFonts) {
            if ([fonts containsObject:name]) {
                fontName = name;
                break;
            }
        }
        if (fontName) {
            [recentlyFonts addObject:fontName];
        }
    } else {
        fontName = recentlyFonts.firstObject;
    }
    
//    if ([fonts containsObject:fontName]) {
//        self.keyboardView.fontName = fontName;
//        [self.fontBox setTitle:fontName];
//    } else {
//        self.keyboardView.fontName = fonts.firstObject;
//        [self.fontBox setTitle:fonts.firstObject];
//    }
    self.keyboardView.fontName = self.fontDefaultValue;
    
    for (NSInteger i = 0; i<recentlyFonts.count; i++) {
        NSString *fontName  = recentlyFonts[i];
        NSDictionary *attrited = @{NSFontAttributeName:[NSFont fontWithName:fontName size:12.0]};
        NSAttributedString *string = [[NSAttributedString alloc] initWithString:fontName attributes:attrited];
        NSMenuItem *item = [[NSMenuItem alloc] init];
        item.attributedTitle = string;
        [self.fontBox.menu insertItem:item atIndex:1 + i];
    }
    NSMenuItem *sep = [NSMenuItem separatorItem];
    [self.fontBox.menu  insertItem:sep atIndex:(recentlyFonts.count)+1];
    
    self.selectItem = [self.fontBox.menu itemAtIndex:1];
    self.selectItem.state = NSControlStateValueOn;
    [self.inputButton setTitle:NSLocalizedString(@"Keyboard", nil)];
    [self.drawingButton setTitle:NSLocalizedString(@"Trackpad", nil)];
    [self.pictureButton setTitle:NSLocalizedString(@"Image", nil)];
    
}

- (void)showHelpTip:(NSButton *)sender {
    if (self.popover) {
        [self dismissHelpTip];
        return;
    }
    
    NSPopover *pop = [[NSPopover alloc] init];
    self.popover = pop;
    KMSignatureHelpViewController *controller = [[KMSignatureHelpViewController alloc] init];
    pop.contentViewController = controller;
    controller.tipString = NSLocalizedString(@"Remove white background from images", nil);
    [pop setValue:@YES forKey:@"shouldHideAnchor"];
    
    [pop showRelativeToRect:NSMakeRect(0, -8, NSWidth(sender.bounds), NSHeight(sender.bounds)) ofView:sender preferredEdge:NSRectEdgeMaxY];
}

- (void)dismissHelpTip {
    [self.popover close];
    self.popover = nil;
}

#pragma mark Button Mehtods

- (IBAction)inputButton_Click:(id)sender {
    self.contentBox.contentView = self.inputView;
    self.type = kKMPDFSignatureType_Text;
}
- (IBAction)drawingButton_Click:(id)sender {
    self.contentBox.contentView = self.drawingView;
    self.type = kKMPDFSignatureType_Ink;
}

- (IBAction)pictureButton_Click:(id)sender {
    self.contentBox.contentView = self.pictureView;
    self.type = kKMPDFSignatureType_Image;
}

- (void)clearButton_Click:(id)sender
{
    if (kKMPDFSignatureType_Image == self.type) {
        [self.pictureBackView reSelectImage];
    } else if (kKMPDFSignatureType_Ink == self.type) {
        [self.drawView clearImage];
    }else if (kKMPDFSignatureType_Text == self.type) {
        [self.keyboardView clearImage];
    }
    
    self.applyButtonVC.enabled = NO;
}

- (void)applyButton_Click:(id)sender
{
    KMSignature *signature = [[KMSignature alloc] init];

    if (kKMPDFSignatureType_Text == self.type) {
        NSImage *image = [self.keyboardView signatureImage];
        
        if (!image) {
            NSAlert *alert = [[NSAlert alloc] init];
            [alert setAlertStyle:NSAlertStyleCritical];
            [alert setMessageText:NSLocalizedString(@"Unable to add new signatures. Please try again.",nil)];
            [alert runModal];
            return;
        }
        
        signature.pathsImage = image;
        signature.signatureType = kKMPDFSignatureType_Text;
        KMSignatureManager *signatureManager = [[KMSignatureManager alloc] init];
        [signatureManager loadAllSignatureList];
        [signatureManager addSignature:signature];
        [signatureManager saveSingaturesToFile];
    } else if(kKMPDFSignatureType_Image == self.type) {
        NSImage *image = [self.pictureBackView signatureImage];
        
        if (!image) {
            NSAlert *alert = [[NSAlert alloc] init];
            [alert setAlertStyle:NSAlertStyleCritical];
            [alert setMessageText:NSLocalizedString(@"Unable to add new signatures. Please try again.",nil)];
            [alert runModal];
            return;
        }
        
        signature.pathsImage = image;
        signature.signatureType = kKMPDFSignatureType_Image;

        KMSignatureManager *signatureManager = [[KMSignatureManager alloc] init];
        [signatureManager loadAllSignatureList];
        [signatureManager addSignature:signature];
        [signatureManager saveSingaturesToFile];

    } else {
        NSImage *image = [self.drawView signatureImage];
        
        if (!image) {
            NSAlert *alert = [[NSAlert alloc] init];
            [alert setAlertStyle:NSAlertStyleCritical];
            [alert setMessageText:NSLocalizedString(@"Unable to add new signatures. Please try again.",nil)];
            [alert runModal];
            return;
        }
        
        [signature addPath:self.drawView.drawBezierPath];
        signature.signatureType = kKMPDFSignatureType_Ink;
        signature.signatureColor = self.drawView.drawColor;
        signature.pathsImage = image;
        KMSignatureManager *signatureManager = [[KMSignatureManager alloc] init];
        [signatureManager loadAllSignatureList];
        [signatureManager addSignature:signature];
        [signatureManager saveSingaturesToFile];
    }
    self.selectedSignature = signature;
    [self dismissSheet:nil];
}

- (IBAction)trackpadButton_Click:(id)sender
{
    if (self.trackpadButtonVC.state == KMDesignTokenStateChecked) {
        self.trackpadButtonVC.state = KMDesignTokenStateNorm;
        self.trackpadLabel.hidden = YES;
        self.drawTipView.hidden = YES;
        self.drawView.isAcceptsTouch = NO;
    } else {
        self.trackpadButtonVC.state = KMDesignTokenStateChecked;
        self.trackpadLabel.hidden = YES;
        self.drawTipView.hidden = NO;
        self.drawView.isAcceptsTouch = YES;
        
        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
            self.drawTipView.hidden = YES;
        });
    }
}

- (IBAction)boxItemClicked_Font:(id)sender
{
    NSString * name = self.fontBox.selectedItem.title;
    self.fontBox.title = name;
    self.keyboardView.fontName = name;

    if ([recentlyFonts containsObject:name]) {
        NSInteger index = [recentlyFonts indexOfObject:name];
        [recentlyFonts removeObject:name];
        [self.fontBox.menu removeItemAtIndex:index +1];
        
    }
    if (recentlyFonts.count >0) {
        [recentlyFonts insertObject:name atIndex:0];
    } else {
        [recentlyFonts addObject:name];
    }

    if (recentlyFonts.count >5) {
        [recentlyFonts removeLastObject];
        [self.fontBox.menu removeItemAtIndex:recentlyFonts.count];
    }

    NSDictionary *attrited = @{NSFontAttributeName:[NSFont fontWithName:name size:12.0]};
    NSAttributedString *string = [[NSAttributedString alloc] initWithString:name attributes:attrited];
    NSMenuItem *item = [[NSMenuItem alloc] init];
    item.attributedTitle = string;
    [self.fontBox.menu  insertItem:item atIndex:1];
    
    self.selectItem.state = NSControlStateValueOff;
    self.selectItem =  [self.fontBox.menu itemAtIndex:1];
    self.selectItem.state = NSControlStateValueOn;
}

- (IBAction)colorTextButtonAction:(id)sender {
    if ([sender isEqual:self.keyboardColorBtn1] ||
        [sender isEqual:self.keyboardColorBtn2] ||
        [sender isEqual:self.keyboardColorBtn3] ||
        [sender isEqual:self.keyboardColorBtn4]) {
        
        self.keyboardView.keyboardColor = [NSColor colorWithCGColor:((NSButton *)sender).layer.backgroundColor];
        
        CGRect rect = self.keyboardView.frame;
        rect.origin.y = CGRectGetMidY(((NSButton *)sender).frame)-16;
        rect.origin.x = CGRectGetMidX(((NSButton *)sender).frame)-16;
        rect.size.width = rect.size.height = 32;
        self.keyboardColorSelView.frame = rect;
        
    } else {
        [[NSColorPanel sharedColorPanel] setTarget:self];
        [[NSColorPanel sharedColorPanel] setAction:@selector(keyboardColorPanelColorDidChange:)];
        [[NSColorPanel sharedColorPanel] orderFront:nil];
    }
}

- (IBAction)drawColorBtnClicked:(NSButton *)sender {
    if ([sender isEqual:self.drawColorBtn1] ||
        [sender isEqual:self.drawColorBtn2] ||
        [sender isEqual:self.drawColorBtn3] ||
        [sender isEqual:self.drawColorBtn4]) {
        
        self.drawView.drawColor = [NSColor colorWithCGColor:((NSButton *)sender).layer.backgroundColor];
        
        CGRect rect = self.drawColorSelView.frame;
        rect.origin.y = CGRectGetMidY(((NSButton *)sender).frame)-16;
        rect.origin.x = CGRectGetMidX(((NSButton *)sender).frame)-16;
        rect.size.width = rect.size.height = 32;
        self.drawColorSelView.frame = rect;
    }
}

- (IBAction)drawSizeBtnClicked:(NSPopUpButton *)sender {
    NSString * name = self.drawSizeBox.selectedItem.title;
    self.drawSizeBox.title = name;
    
    self.drawView.strokeRadius = [[@[@"0.5",@"1.0",@"1.5",@"2.0",@"2.5",@"3.0"] objectAtIndex:(self.drawSizeBox.indexOfSelectedItem -1)] floatValue];
}

//Picture

- (IBAction)pictureClearBackBtnAction:(NSButton *)sender {
    BOOL clearBack = YES;
    if (self.pictureClearBackBtnVC.state == KMDesignTokenStateChecked) {
        self.pictureClearBackBtnVC.state = KMDesignTokenStateNorm;
        clearBack = NO;
    } else {
        self.pictureClearBackBtnVC.state = KMDesignTokenStateChecked;
        clearBack = YES;
    }
    self.pictureBackView.clearBackground = clearBack;
}

- (void)keyboardColorPanelColorDidChange:(id)sender
{
    self.textColorButton.layer.borderColor= [NSColor clearColor].CGColor;
    
    CGFloat red,green,blue,alpha;
    NSColor *color = [NSColorPanel sharedColorPanel].color ? : [NSColor clearColor];
    [[color colorUsingColorSpaceName:NSCalibratedRGBColorSpace] getRed:&red green:&green blue:&blue alpha:&alpha];
    self.keyboardView.keyboardColor = color;
    self.textColorButton.layer.borderColor = [NSColor colorWithRed:33.0/255.0 green:124.0/255.0 blue:234.0/255.0 alpha:1.0].CGColor;
}

#pragma mark KMDrawViewDelegate Methods

- (void)drawViewDidFinishTouchMode:(KMDrawView *)view
{
    self.trackpadButtonVC.state = KMDesignTokenStateNorm;
    [self.trackpadLabel setHidden:YES];
    
//    [NSAnimationContext beginGrouping];
//    [NSAnimationContext currentContext].duration = 1.5;
//    [NSAnimationContext currentContext].timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];
//    self.scrollView.animator.frame = originFrame;
    self.drawTipView.animator.hidden = YES;
//    [NSAnimationContext endGrouping];
}

#pragma mark KMChangeSignatureTextDelegate Methods

- (void)changeSignatureText:(BOOL)isTure {
    self.applyButtonVC.enabled = isTure;
}

#pragma mark Show Methods
- (void)didEndSheet:(NSWindow *)sheet returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo
{
    if (contextInfo != NULL && self.handler) {
        self.handler(self.selectedSignature);
    }
}

- (void)beginSheetModalForWindow:(NSWindow *)window completionHandler:(void (^)(KMSignature *signature))handler;
{
    windowController_signature = self;
    
    [NSApp beginSheet:[self window]
       modalForWindow:window
        modalDelegate:self
       didEndSelector:@selector(didEndSheet:returnCode:contextInfo:)
          contextInfo:(__bridge void * _Null_unspecified)(handler ? handler : NULL)];
    self.handler = handler;
}

- (void)dismissSheet:(id)sender {
    windowController_signature = nil;
    
    if (sender) {
        [NSApp endSheet:[self window] returnCode:0];
    } else {
        [NSApp endSheet:[self window] returnCode:1];
    }
    [[self window] orderOut:self];
}

#pragma mark -
#pragma mark - KMSelectPopButtonDelegate

- (void)km_comboBoxSelectionDidChange:(KMDesignSelect *)obj {
    if ([obj isEqual:self.fontVC]) {
        NSInteger index = self.fontVC.indexOfSelectedItem;
        if (index < 0) {
            index = 0;
        }
        
        self.keyboardView.fontName = self.fontVC.items[index];
    } else if ([obj isEqual:self.drawSizeVC]) {
        NSInteger index = self.drawSizeVC.indexOfSelectedItem;
        if (index < 0) {
            index = 0;
        }
        self.drawView.strokeRadius = [self.drawSizeValues[index] floatValue];
    }
}

#pragma mark NSTabViewDelegate Methods

- (BOOL)tabView:(NSTabView *)tabView shouldSelectTabViewItem:(nullable NSTabViewItem *)tabViewItem
{
    return YES;
}

- (void)tabView:(NSTabView *)tabView didSelectTabViewItem:(NSTabViewItem *)tabViewItem
{
    BOOL isImage = NO;
    if ([tabView indexOfTabViewItem:tabViewItem] == 0) {
        self.type = kKMPDFSignatureType_Text;
        if ([self.keyboardView signatureImage]) {
            isImage = YES;
        }
    } else if ([tabView indexOfTabViewItem:tabViewItem] == 1) {
        self.type = kKMPDFSignatureType_Ink;
        if ([self.drawView signatureImage]) {
            isImage = YES;
        }
    } else if ([tabView indexOfTabViewItem:tabViewItem] == 2) {
        self.type = kKMPDFSignatureType_Image;
        if ([self.pictureBackView signatureImage]) {
            isImage = YES;
        }
    }
    
    if (isImage) {
        self.applyButtonVC.enabled = YES;
    } else {
        self.applyButtonVC.enabled = NO;
    }
}

@end