/*

    File:       SpellCheck.m

    Contains:   Contains wrappers to cocoa objective-c routines and exports the wrapper

                functions as C.

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                expressly stated in this notice, no other rights or licenses, express or implied,

                are granted by Apple herein, including but not limited to any patent rights that

                may be infringed by your derivative works or by other works in which the Apple

                Software may be incorporated.

                The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO

                WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED

                WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR

                PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN

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    Copyright © 2003 - 2004 Apple Computer, Inc., All Rights Reserved

*/

#include <Carbon/Carbon.h>

#include <Cocoa/Cocoa.h>

#include "SpellCheck.h"

#define DebugSpellCheck 0

/*  

    NSApplicationLoad() is an API introduced in 10.2 which is a startup function to call when

    running Cocoa code from a Carbon application.

*/

void    InitializeCocoa()

{       

    (void) NSApplicationLoad();

    return;

}

/*

    Returns a guaranteed unique tag to use as the spell document tag for a document.

    You should use this method to generate tags, if possible, to avoid collisions

    with other objects that can be spell checked.

*/

int UniqueSpellDocumentTag()

{

    int                 tag;

    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];

    tag     =[NSSpellChecker uniqueSpellDocumentTag];

    [pool release];

    return( tag );

}

/*  

    When a document closes, it should notify the NSSpellChecker via closeSpellDocumentWithTag:

    so that its ignored word list gets cleaned up.

*/

void    CloseSpellDocumentWithTag( int tag )

{

    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];

    [[NSSpellChecker sharedSpellChecker] closeSpellDocumentWithTag:tag];

    [pool release];

}

/*

    Initiates a spell-check of a string.  Returns the range of the first misspelled

    word (and optionally the wordCount by reference).

*/

CFRange CheckSpellingOfString( CFStringRef stringToCheck, int startingOffset )

{

    NSRange     range   = {0,0};

    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];

    range       =[[NSSpellChecker sharedSpellChecker] checkSpellingOfString:(NSString *)stringToCheck startingAt:startingOffset];

#if( DebugSpellCheck )    

    NSLog( @"%u is the location", range.location );

    NSLog( @"%u is the length", range.length );

#endif    

    [pool release];

    return( *(CFRange*)&range );

}

/*  

    Initiates a spell-check of a string.  Returns the range of the first misspelled

    word (and optionally the wordCount by reference).

*/

CFRange CheckSpellingOfStringWithOptions(   CFStringRef stringToCheck,  // the string whose spelling we wish to check

                                            int startingOffset,         // 0-based offset in stringToCheck at which checking starts

                                            CFStringRef language,       // pass an empty string CFSTR("") to use the default language

                                            Boolean wrapFlag,           // if true, checking will wrap round to the start of stringToCheck

                                                                        // if false, checdking will stop at the end of stringToCheck

                                            int tag,                    // tag indicating a list of words to be ignored

                                                                        // use UniqueSpellDocumentTag to get a new tag

                                            int wordCount 

                                        )

{

    NSRange     range   = {0,0};

    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];

    range       =[[NSSpellChecker sharedSpellChecker] checkSpellingOfString:(NSString *)stringToCheck startingAt:startingOffset language:(NSString *)language wrap:(BOOL)wrapFlag inSpellDocumentWithTag:tag wordCount:&wordCount];

    [pool release];

    return( *(CFRange*)&range );    //  If there are no misspellings then it will get a length of zero

}

/*

    Add inWord to the list of words to be ignored when using CheckSpellingOfString with tag

    This method should be called from the client's implementation of -ignoreSpelling:

*/

void    IgnoreWord( CFStringRef wordToIgnore, int tag )

{

    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];

    [[NSSpellChecker sharedSpellChecker] ignoreWord:(NSString *)wordToIgnore inSpellDocumentWithTag:tag];

    [pool release];

}

/*

    Set the list of ignored words for tag, replacing any existing list

*/

void    SetIgnoredWords( CFArrayRef inWords, int tag )

{

    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];

    [[NSSpellChecker sharedSpellChecker] setIgnoredWords:(NSArray*)inWords inSpellDocumentWithTag:tag];

    [pool release];

}

/*

    Get the list of ignored words for tag

    Caller must release the result with CFRelease

*/

CFArrayRef  CopyIgnoredWordsInSpellDocumentWithTag( int tag )

{

    NSArray             *array;

    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init]; // to keep memory requirements down

    array   = [[[NSSpellChecker sharedSpellChecker] ignoredWordsInSpellDocumentWithTag:tag] retain];

    [pool release];

    return( (CFArrayRef)array );

}

/*

    Get a list of guesses for a misspelled words

    Caller must release the result with CFRelease

*/

CFArrayRef  GuessesForWord( CFStringRef word )

{

    NSArray             *array;

    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];

    array   = [[[NSSpellChecker sharedSpellChecker] guessesForWord:(NSString *)word] retain];

    [pool release];

    return( (CFArrayRef)array );

}