#import <Foundation/Foundation.h>

enum {

    NoStringEncoding = 0xFFFFFFFF

};

@interface EncodingPopUpButton : NSPopUpButton {

    NSStringEncoding defaultEncoding;

    BOOL hasDefaultEntry;

}

- (void)setEncoding:(NSStringEncoding)encoding defaultEntry:(BOOL)flag;

@end

@interface EncodingManager : NSObject {

    @private

    IBOutlet NSMatrix *encodingMatrix;

    NSArray *encodings;

}

/* There is just one instance...

*/

+ (EncodingManager *)sharedInstance;

/* List of encodings that should be shown in encoding lists

*/

- (NSArray *)enabledEncodings;

/* Empties then initializes the supplied popup with the supported encodings.

*/

- (void)setupPopUp:(EncodingPopUpButton *)button selectedEncoding:(unsigned)selectedEncoding withDefaultEntry:(BOOL)flag;

/* Action methods for bringing up and dealing with changes in the encodings list panel

*/

- (IBAction)showPanel:(id)sender;

- (IBAction)encodingListChanged:(id)sender;

- (IBAction)clearAll:(id)sender;

- (IBAction)selectAll:(id)sender;

- (IBAction)revertToDefault:(id)sender;

/* Internal method to save and communicate changes to the encoding list

*/

- (void)noteEncodingListChange:(BOOL)writeDefault updateList:(BOOL)updateList postNotification:(BOOL)post;

@end