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

#import "PrintPanelAccessoryController.h"
#import "AppDefaultsKeys.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];
	return [NSSet setWithObjects:@"pageNumbering", 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)
/*    return [NSSet setWithObjects:@"pageNumbering", @"wrappingToFit", nil];
	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
