/*

     File: PrintPanelAccessoryController.m

 Abstract: PrintPanelAccessoryController is a subclass of NSViewController demonstrating how to add an accessory view to the print panel.

  Version: 1.9

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 */

#import "PrintPanelAccessoryController.h"

#import "TextEditDefaultsKeys.h"

@implementation PrintPanelAccessoryController

@synthesize showsWrappingToFit, wrappingToFit;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {

    // We override the designated initializer, ignoring the nib since we need our own

    return [super initWithNibName:@"PrintPanelAccessory" bundle:nibBundleOrNil];

}

/* The first time the printInfo is supplied, initialize the value of the pageNumbering setting from defaults

 */

- (void)setRepresentedObject:(id)printInfo {

    [super setRepresentedObject:printInfo];

    // We don't bind to NSUserDefaults since we don't want changes while one panel is up to affect other panels that may be up

    self.pageNumbering = [[NSUserDefaults standardUserDefaults] boolForKey:NumberPagesWhenPrinting];

    self.wrappingToFit = [[NSUserDefaults standardUserDefaults] boolForKey:WrapToFitWhenPrinting];

    [self addObserver:self forKeyPath:@"pageNumbering" options:0 context:NULL];

    [self addObserver:self forKeyPath:@"wrappingToFit" options:0 context:NULL];

}

- (void)dealloc {

    if (self.representedObject) {   // If setRepresentedObject: wasn't called, no observers, so don't attempt to remove

        [self removeObserver:self forKeyPath:@"pageNumbering"];

        [self removeObserver:self forKeyPath:@"wrappingToFit"];

    }

    [super dealloc];

}

/* The values are sticky, so write them out to defaults when they change

 */

- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {

    if ([keyPath isEqual:@"pageNumbering"]) {

        [[NSUserDefaults standardUserDefaults] setBool:self.pageNumbering forKey:NumberPagesWhenPrinting];

    } else if ([keyPath isEqual:@"wrappingToFit"]) {

        [[NSUserDefaults standardUserDefaults] setBool:self.wrappingToFit forKey:WrapToFitWhenPrinting];

    } else {

        [super observeValueForKeyPath:keyPath ofObject:object change:change context:context];

    }

}

/* We don't use a instance variable to store pageNumbering, but instead get/set it in the printInfo. Hence we need custom accessors.

 */

- (void)setPageNumbering:(BOOL)flag {

    NSPrintInfo *printInfo = [self representedObject];

    [[printInfo dictionary] setObject:[NSNumber numberWithBool:flag] forKey:NSPrintHeaderAndFooter];

}

- (BOOL)pageNumbering {

    NSPrintInfo *printInfo = [self representedObject];

    return [[[printInfo dictionary] objectForKey:NSPrintHeaderAndFooter] boolValue];

}

- (NSSet *)keyPathsForValuesAffectingPreview {

    return [NSSet setWithObjects:@"pageNumbering", @"wrappingToFit", nil];

}

/* This enables TextEdit-specific settings to be displayed in the Summary pane of the print panel.

*/

- (NSArray *)localizedSummaryItems {

    NSMutableArray *items = [NSMutableArray array];

    [items addObject:[NSDictionary dictionaryWithObjectsAndKeys:

                      NSLocalizedStringFromTable(@"Header and Footer", @"PrintAccessory", @"Print panel summary item title for whether header and footer (page number, date, document title) should be printed"), NSPrintPanelAccessorySummaryItemNameKey,

                      [self pageNumbering] ? NSLocalizedStringFromTable(@"On", @"PrintAccessory", @"Print panel summary value for feature that is enabled") : NSLocalizedStringFromTable(@"Off", @"PrintAccessory", @"Print panel summary value for feature that is disabled"), NSPrintPanelAccessorySummaryItemDescriptionKey,

                      nil]];

    // We add the "Rewrap to fit page" item to the summary only if the item is settable (which it isn't, for "wrap-to-page" mode)

    if ([self showsWrappingToFit]) [items addObject:[NSDictionary dictionaryWithObjectsAndKeys:

                                                     NSLocalizedStringFromTable(@"Rewrap to fit page", @"PrintAccessory", @"Print panel summary item title for whether document contents should be rewrapped to fit the page"), NSPrintPanelAccessorySummaryItemNameKey,

                                                     [self wrappingToFit] ? NSLocalizedStringFromTable(@"On", @"PrintAccessory", @"Print panel summary value for feature that is enabled") : NSLocalizedStringFromTable(@"Off", @"PrintAccessory", @"Print panel summary value for feature that is disabled"), NSPrintPanelAccessorySummaryItemDescriptionKey,

                                                     nil]];

    return items;

}

@end