/* HBAdvancedController

    This file is part of the HandBrake source code.
    Homepage: <http://handbrake.m0k.org/>.
    It may be used under the terms of the GNU General Public License. */
    
#import "HBAdvancedController.h"

@implementation HBAdvancedController

- (id)init
{
    [super init];
    [self loadMyNibFile];
    
    return self;
}

- (void) setView: (NSBox *) box {
    fOptionsBox = box;
    [fOptionsBox setContentView:fX264optView];
}

- (BOOL) loadMyNibFile
{
    if(![NSBundle loadNibNamed:@"AdvancedView" owner:self])
    {
        NSLog(@"Warning! Could not load myNib file.\n");
        return NO;
    }
    
    return YES;
}

- (NSString *) optionsString {
    return [fDisplayX264Options stringValue];
}

- (void) setOptions: (NSString *)string {
    [fDisplayX264Options setStringValue:string];
    [self X264AdvancedOptionsSet:NULL];
}

- (void) setHidden: (BOOL) hide {
    if(hide)
    {
        [fOptionsBox setContentView:fEmptyView];
        [fX264optViewTitleLabel setStringValue: @"Only Used With The x264 (H.264) Codec"];
    }
    else
    {
        [fOptionsBox setContentView:fX264optView];
        [fX264optViewTitleLabel setStringValue: @""];
    }
    return;
}

 - (void) enableUI: (bool) b
{
    unsigned i;
    NSControl * controls[] =
      { fX264optViewTitleLabel,fDisplayX264Options,fDisplayX264OptionsLabel,fX264optBframesLabel,
		fX264optBframesPopUp,fX264optRefLabel,fX264optRefPopUp,fX264optNfpskipLabel,fX264optNfpskipSwitch,
		fX264optNodctdcmtLabel,fX264optNodctdcmtSwitch,fX264optSubmeLabel,fX264optSubmePopUp,
		fX264optTrellisLabel,fX264optTrellisPopUp,fX264optMixedRefsLabel,fX264optMixedRefsSwitch,
		fX264optMotionEstLabel,fX264optMotionEstPopUp,fX264optMERangeLabel,fX264optMERangePopUp,
		fX264optWeightBLabel,fX264optWeightBSwitch,fX264optBRDOLabel,fX264optBRDOSwitch,
		fX264optBPyramidLabel,fX264optBPyramidSwitch,fX264optBiMELabel,fX264optBiMESwitch,
		fX264optDirectPredLabel,fX264optDirectPredPopUp,fX264optDeblockLabel,fX264optAnalyseLabel,
		fX264optAnalysePopUp,fX264opt8x8dctLabel,fX264opt8x8dctSwitch,fX264optCabacLabel,fX264optCabacSwitch,
		fX264optAlphaDeblockPopUp,fX264optBetaDeblockPopUp};

    for( i = 0; i < sizeof( controls ) / sizeof( NSControl * ); i++ )
    {
        if( [[controls[i] className] isEqualToString: @"NSTextField"] )
        {
            NSTextField * tf = (NSTextField *) controls[i];
            if( ![tf isBezeled] )
            {
                [tf setTextColor: b ? [NSColor controlTextColor] :
                    [NSColor disabledControlTextColor]];
                continue;
            }
        }
        [controls[i] setEnabled: b];

    }
}

- (void)dealloc
{
    [super dealloc];
}

- (IBAction) X264AdvancedOptionsSet: (id) sender
{
    /*Set opt widget values here*/
    
    /*B-Frames fX264optBframesPopUp*/
    int i;
    [fX264optBframesPopUp removeAllItems];
    [fX264optBframesPopUp addItemWithTitle:@"Default (0)"];
    for (i=0; i<17;i++)
    {
        [fX264optBframesPopUp addItemWithTitle:[NSString stringWithFormat:@"%d",i]];
    }
    
    /*Reference Frames fX264optRefPopUp*/
    [fX264optRefPopUp removeAllItems];
    [fX264optRefPopUp addItemWithTitle:@"Default (1)"];
    for (i=0; i<17;i++)
    {
        [fX264optRefPopUp addItemWithTitle:[NSString stringWithFormat:@"%d",i]];
    }
    
    /*No Fast P-Skip fX264optNfpskipSwitch BOOLEAN*/
    [fX264optNfpskipSwitch setState:0];
    
    /*No Dict Decimate fX264optNodctdcmtSwitch BOOLEAN*/
    [fX264optNodctdcmtSwitch setState:0];    
    
    /*Sub Me fX264optSubmePopUp*/
    [fX264optSubmePopUp removeAllItems];
    [fX264optSubmePopUp addItemWithTitle:@"Default (4)"];
    for (i=0; i<8;i++)
    {
        [fX264optSubmePopUp addItemWithTitle:[NSString stringWithFormat:@"%d",i]];
    }
    
    /*Trellis fX264optTrellisPopUp*/
    [fX264optTrellisPopUp removeAllItems];
    [fX264optTrellisPopUp addItemWithTitle:@"Default (0)"];
    for (i=0; i<3;i++)
    {
        [fX264optTrellisPopUp addItemWithTitle:[NSString stringWithFormat:@"%d",i]];
    }
    
    /*Mixed-references fX264optMixedRefsSwitch BOOLEAN*/
    [fX264optMixedRefsSwitch setState:0];
    
    /*Motion Estimation fX264optMotionEstPopUp*/
    [fX264optMotionEstPopUp removeAllItems];
    [fX264optMotionEstPopUp addItemWithTitle:@"Default (Hexagon)"];
    [fX264optMotionEstPopUp addItemWithTitle:@"Diamond"];
    [fX264optMotionEstPopUp addItemWithTitle:@"Hexagon"];
    [fX264optMotionEstPopUp addItemWithTitle:@"Uneven Multi-Hexagon"];
    [fX264optMotionEstPopUp addItemWithTitle:@"Exhaustive"];
    
    /*Motion Estimation range fX264optMERangePopUp*/
    [fX264optMERangePopUp removeAllItems];
    [fX264optMERangePopUp addItemWithTitle:@"Default (16)"];
    for (i=4; i<65;i++)
    {
        [fX264optMERangePopUp addItemWithTitle:[NSString stringWithFormat:@"%d",i]];
    }
    
    /*Weighted B-Frame Prediction fX264optWeightBSwitch BOOLEAN*/
    [fX264optWeightBSwitch setState:0];
    
    /*B-Frame Rate Distortion Optimization fX264optBRDOSwitch BOOLEAN*/
    [fX264optBRDOSwitch setState:0];
    
    /*B-frame Pyramids fX264optBPyramidSwitch BOOLEAN*/
    [fX264optBPyramidSwitch setState:0];
    
    /*Bidirectional Motion Estimation Refinement fX264optBiMESwitch BOOLEAN*/
    [fX264optBiMESwitch setState:0];
    
    /*Direct B-Frame Prediction Mode fX264optDirectPredPopUp*/
    [fX264optDirectPredPopUp removeAllItems];
    [fX264optDirectPredPopUp addItemWithTitle:@"Default (Spatial)"];
    [fX264optDirectPredPopUp addItemWithTitle:@"None"];
    [fX264optDirectPredPopUp addItemWithTitle:@"Spatial"];
    [fX264optDirectPredPopUp addItemWithTitle:@"Temporal"];
    [fX264optDirectPredPopUp addItemWithTitle:@"Automatic"];
    
    /*Alpha Deblock*/
    [fX264optAlphaDeblockPopUp removeAllItems];
    [fX264optAlphaDeblockPopUp addItemWithTitle:@"Default (0)"];
    for (i=-6; i<7;i++)
    {
        [fX264optAlphaDeblockPopUp addItemWithTitle:[NSString stringWithFormat:@"%d",i]];
    }
    
    /*Beta Deblock*/
    [fX264optBetaDeblockPopUp removeAllItems];
    [fX264optBetaDeblockPopUp addItemWithTitle:@"Default (0)"];
    for (i=-6; i<7;i++)
    {
        [fX264optBetaDeblockPopUp addItemWithTitle:[NSString stringWithFormat:@"%d",i]];
    }     
    
    /* Analysis fX264optAnalysePopUp */
    [fX264optAnalysePopUp removeAllItems];
    [fX264optAnalysePopUp addItemWithTitle:@"Default (some)"]; /* 0=default */
        [fX264optAnalysePopUp addItemWithTitle:[NSString stringWithFormat:@"None"]]; /* 1=none */
            [fX264optAnalysePopUp addItemWithTitle:[NSString stringWithFormat:@"All"]]; /* 2=all */
                
                /* 8x8 DCT fX264op8x8dctSwitch */
                [fX264opt8x8dctSwitch setState:0];
                
                /* CABAC fX264opCabacSwitch */
                [fX264optCabacSwitch setState:1];
                
                /* Standardize the option string */
                [self X264AdvancedOptionsStandardizeOptString: NULL];
                /* Set Current GUI Settings based on newly standardized string */
                [self X264AdvancedOptionsSetCurrentSettings: NULL];
}

- (IBAction) X264AdvancedOptionsStandardizeOptString: (id) sender
{
    /* Set widgets depending on the opt string in field */
    NSString * thisOpt; // The separated option such as "bframes=3"
    NSString * optName = @""; // The option name such as "bframes"
    NSString * optValue = @"";// The option value such as "3"
        NSString * changedOptString = @"";
        NSArray *currentOptsArray;
        
        /*First, we get an opt string to process */
        NSString *currentOptString = [fDisplayX264Options stringValue];
        
        /*verify there is an opt string to process */
        NSRange currentOptRange = [currentOptString rangeOfString:@"="];
        if (currentOptRange.location != NSNotFound)
        {
            /*Put individual options into an array based on the ":" separator for processing, result is "<opt>=<value>"*/
            currentOptsArray = [currentOptString componentsSeparatedByString:@":"];
            
            /*iterate through the array and get <opts> and <values*/
            //NSEnumerator * enumerator = [currentOptsArray objectEnumerator];
            int loopcounter;
            int currentOptsArrayCount = [currentOptsArray count];
            for (loopcounter = 0; loopcounter < currentOptsArrayCount; loopcounter++)
            {
                thisOpt = [currentOptsArray objectAtIndex:loopcounter];
                
                NSRange splitOptRange = [thisOpt rangeOfString:@"="];
                if (splitOptRange.location != NSNotFound)
                {
                    optName = [thisOpt substringToIndex:splitOptRange.location];
                    optValue = [thisOpt substringFromIndex:splitOptRange.location + 1];
                    
                    /* Standardize the names here depending on whats in the string */
                    optName = [self X264AdvancedOptionsStandardizeOptNames:optName];
                    thisOpt = [NSString stringWithFormat:@"%@=%@",optName,optValue];	
                }
                else // No value given so we use a default of "1"
                {
                    optName = thisOpt;
                    /* Standardize the names here depending on whats in the string */
                    optName = [self X264AdvancedOptionsStandardizeOptNames:optName];
                    thisOpt = [NSString stringWithFormat:@"%@=%d",optName,1];
                }
                
                /* Construct New String for opts here */
                if ([thisOpt isEqualToString:@""])
                {
                    changedOptString = [NSString stringWithFormat:@"%@%@",changedOptString,thisOpt];
                }
                else
                {
                    if ([changedOptString isEqualToString:@""])
                    {
                        changedOptString = [NSString stringWithFormat:@"%@",thisOpt];
                    }
                    else
                    {
                        changedOptString = [NSString stringWithFormat:@"%@:%@",changedOptString,thisOpt];
                    }
                }
            }
        }
        
        /* Change the option string to reflect the new standardized option string */
        [fDisplayX264Options setStringValue:[NSString stringWithFormat:changedOptString]];
}

- (NSString *) X264AdvancedOptionsStandardizeOptNames:(NSString *) cleanOptNameString
{
    if ([cleanOptNameString isEqualToString:@"ref"] || [cleanOptNameString isEqualToString:@"frameref"])
    {
        cleanOptNameString = @"ref";
    }
    
    /*No Fast PSkip nofast_pskip*/
    if ([cleanOptNameString isEqualToString:@"no-fast-pskip"] || [cleanOptNameString isEqualToString:@"no_fast_pskip"] || [cleanOptNameString isEqualToString:@"nofast_pskip"])
    {
        cleanOptNameString = @"no-fast-pskip";
    }
    
    /*No Dict Decimate*/
    if ([cleanOptNameString isEqualToString:@"no-dct-decimate"] || [cleanOptNameString isEqualToString:@"no_dct_decimate"] || [cleanOptNameString isEqualToString:@"nodct_decimate"])
    {
        cleanOptNameString = @"no-dct-decimate";
    }
    
    /*Subme*/
    if ([cleanOptNameString isEqualToString:@"subme"])
    {
        cleanOptNameString = @"subq";
    }
    
    /*ME Range*/
    if ([cleanOptNameString isEqualToString:@"me-range"] || [cleanOptNameString isEqualToString:@"me_range"])
        cleanOptNameString = @"merange";
    
    /*WeightB*/
    if ([cleanOptNameString isEqualToString:@"weight-b"] || [cleanOptNameString isEqualToString:@"weight_b"])
    {
        cleanOptNameString = @"weightb";
    }
    
    /*BRDO*/
    if ([cleanOptNameString isEqualToString:@"b-rdo"] || [cleanOptNameString isEqualToString:@"b_rdo"])
    {
        cleanOptNameString = @"brdo";
    }
    
    /*B Pyramid*/
    if ([cleanOptNameString isEqualToString:@"b_pyramid"])
    {
        cleanOptNameString = @"b-pyramid";
    }
    
    /*Direct Prediction*/
    if ([cleanOptNameString isEqualToString:@"direct-pred"] || [cleanOptNameString isEqualToString:@"direct_pred"])
    {
        cleanOptNameString = @"direct";
    }
    
    /*Deblocking*/
    if ([cleanOptNameString isEqualToString:@"filter"])
    {
        cleanOptNameString = @"deblock";
    }
    
    /*Analysis*/
    if ([cleanOptNameString isEqualToString:@"partitions"])
    {
        cleanOptNameString = @"analyse";
    }
    
    
    return cleanOptNameString;	
}

- (IBAction) X264AdvancedOptionsSetCurrentSettings: (id) sender
{
    /* Set widgets depending on the opt string in field */
    NSString * thisOpt; // The separated option such as "bframes=3"
    NSString * optName = @""; // The option name such as "bframes"
    NSString * optValue = @"";// The option value such as "3"
        NSArray *currentOptsArray;
        
        /*First, we get an opt string to process */
        //NSString *currentOptString = @"bframes=3:ref=1:subme=5:me=umh:no-fast-pskip=1:no-dct-decimate=1:trellis=2";
        NSString *currentOptString = [fDisplayX264Options stringValue];
        
        /*verify there is an opt string to process */
        NSRange currentOptRange = [currentOptString rangeOfString:@"="];
        if (currentOptRange.location != NSNotFound)
        {
            /* lets clean the opt string here to standardize any names*/
            /*Put individual options into an array based on the ":" separator for processing, result is "<opt>=<value>"*/
            currentOptsArray = [currentOptString componentsSeparatedByString:@":"];
            
            /*iterate through the array and get <opts> and <values*/
            //NSEnumerator * enumerator = [currentOptsArray objectEnumerator];
            int loopcounter;
            int currentOptsArrayCount = [currentOptsArray count];
            
            /*iterate through the array and get <opts> and <values*/
            for (loopcounter = 0; loopcounter < currentOptsArrayCount; loopcounter++)
            {
                thisOpt = [currentOptsArray objectAtIndex:loopcounter];
                NSRange splitOptRange = [thisOpt rangeOfString:@"="];
                
                if (splitOptRange.location != NSNotFound)
                {
                    optName = [thisOpt substringToIndex:splitOptRange.location];
                    optValue = [thisOpt substringFromIndex:splitOptRange.location + 1];
                    
                    /*Run through the available widgets for x264 opts and set them, as you add widgets, 
                        they need to be added here. This should be moved to its own method probably*/
                    
                    /*bframes NSPopUpButton*/
                    if ([optName isEqualToString:@"bframes"])
                    {
                        [fX264optBframesPopUp selectItemAtIndex:[optValue intValue]+1];
                    }
                    /*ref NSPopUpButton*/
                    if ([optName isEqualToString:@"ref"])
                    {
                        [fX264optRefPopUp selectItemAtIndex:[optValue intValue]+1];
                    }
                    /*No Fast PSkip NSPopUpButton*/
                    if ([optName isEqualToString:@"no-fast-pskip"])
                    {
                        [fX264optNfpskipSwitch setState:[optValue intValue]];
                    }
                    /*No Dict Decimate NSPopUpButton*/
                    if ([optName isEqualToString:@"no-dct-decimate"])
                    {
                        [fX264optNodctdcmtSwitch setState:[optValue intValue]];
                    }
                    /*Sub Me NSPopUpButton*/
                    if ([optName isEqualToString:@"subq"])
                    {
                        [fX264optSubmePopUp selectItemAtIndex:[optValue intValue]+1];
                    }
                    /*Trellis NSPopUpButton*/
                    if ([optName isEqualToString:@"trellis"])
                    {
                        [fX264optTrellisPopUp selectItemAtIndex:[optValue intValue]+1];
                    }
                    /*Mixed Refs NSButton*/
                    if ([optName isEqualToString:@"mixed-refs"])
                    {
                        [fX264optMixedRefsSwitch setState:[optValue intValue]];
                    }
                    /*Motion Estimation NSPopUpButton*/
                    if ([optName isEqualToString:@"me"])
                    {
                        if ([optValue isEqualToString:@"dia"])
                            [fX264optMotionEstPopUp selectItemAtIndex:1];
                        else if ([optValue isEqualToString:@"hex"])
                            [fX264optMotionEstPopUp selectItemAtIndex:2];
                        else if ([optValue isEqualToString:@"umh"])
                            [fX264optMotionEstPopUp selectItemAtIndex:3];
                        else if ([optValue isEqualToString:@"esa"])
                            [fX264optMotionEstPopUp selectItemAtIndex:4];                        
                    }
                    /*ME Range NSPopUpButton*/
                    if ([optName isEqualToString:@"merange"])
                    {
                        [fX264optMERangePopUp selectItemAtIndex:[optValue intValue]-3];
                    }
                    /*Weighted B-Frames NSPopUpButton*/
                    if ([optName isEqualToString:@"weightb"])
                    {
                        [fX264optWeightBSwitch setState:[optValue intValue]];
                    }
                    /*BRDO NSPopUpButton*/
                    if ([optName isEqualToString:@"brdo"])
                    {
                        [fX264optBRDOSwitch setState:[optValue intValue]];
                    }
                    /*B Pyramid NSPopUpButton*/
                    if ([optName isEqualToString:@"b-pyramid"])
                    {
                        [fX264optBPyramidSwitch setState:[optValue intValue]];
                    }
                    /*Bidirectional Motion Estimation Refinement NSPopUpButton*/
                    if ([optName isEqualToString:@"bime"])
                    {
                        [fX264optBiMESwitch setState:[optValue intValue]];
                    }
                    /*Direct B-frame Prediction NSPopUpButton*/
                    if ([optName isEqualToString:@"direct"])
                    {
                        if ([optValue isEqualToString:@"none"])
                            [fX264optDirectPredPopUp selectItemAtIndex:1];
                        else if ([optValue isEqualToString:@"spatial"])
                            [fX264optDirectPredPopUp selectItemAtIndex:2];
                        else if ([optValue isEqualToString:@"temporal"])
                            [fX264optDirectPredPopUp selectItemAtIndex:3];
                        else if ([optValue isEqualToString:@"auto"])
                            [fX264optDirectPredPopUp selectItemAtIndex:4];                        
                    }
                    /*Deblocking NSPopUpButtons*/
                    if ([optName isEqualToString:@"deblock"])
                    {
                        NSString * alphaDeblock = @"";
                        NSString * betaDeblock = @"";
                        
                        NSRange splitDeblock = [optValue rangeOfString:@","];
                        alphaDeblock = [optValue substringToIndex:splitDeblock.location];
                        betaDeblock = [optValue substringFromIndex:splitDeblock.location + 1];
                        
                        if ([alphaDeblock isEqualToString:@"0"] && [betaDeblock isEqualToString:@"0"])
                        {
                            [fX264optAlphaDeblockPopUp selectItemAtIndex:0];                        
                            [fX264optBetaDeblockPopUp selectItemAtIndex:0];                               
                        }
                        else
                        {
                            if (![alphaDeblock isEqualToString:@"0"])
                            {
                                [fX264optAlphaDeblockPopUp selectItemAtIndex:[alphaDeblock intValue]+7];
                            }
                            else
                            {
                                [fX264optAlphaDeblockPopUp selectItemAtIndex:7];                        
                            }
                            
                            if (![betaDeblock isEqualToString:@"0"])
                            {
                                [fX264optBetaDeblockPopUp selectItemAtIndex:[betaDeblock intValue]+7];
                            }
                            else
                            {
                                [fX264optBetaDeblockPopUp selectItemAtIndex:7];                        
                            }
                        }
                    }
                    /* Analysis NSPopUpButton */
                    if ([optName isEqualToString:@"analyse"])
                    {
                        if ([optValue isEqualToString:@"p8x8,b8x8,i8x8,i4x4"])
                        {
                            [fX264optAnalysePopUp selectItemAtIndex:0];
                        }
                        if ([optValue isEqualToString:@"none"])
                        {
                            [fX264optAnalysePopUp selectItemAtIndex:1];
                        }
                        if ([optValue isEqualToString:@"all"])
                        {
                            [fX264optAnalysePopUp selectItemAtIndex:2];
                        }
                    }
                    /* 8x8 DCT NSButton */
                    if ([optName isEqualToString:@"8x8dct"])
                    {
                        [fX264opt8x8dctSwitch setState:[optValue intValue]];
                    }
                    /* CABAC NSButton */
                    if ([optName isEqualToString:@"cabac"])
                    {
                        [fX264optCabacSwitch setState:[optValue intValue]];
                    }                                                                 
                }
            }
        }
}

- (IBAction) X264AdvancedOptionsChanged: (id) sender
{
    /*Determine which outlet is being used and set optName to process accordingly */
    NSString * optNameToChange = @""; // The option name such as "bframes"
    
    if (sender == fX264optBframesPopUp)
    {
        optNameToChange = @"bframes";
    }
    if (sender == fX264optRefPopUp)
    {
        optNameToChange = @"ref";
    }
    if (sender == fX264optNfpskipSwitch)
    {
        optNameToChange = @"no-fast-pskip";
    }
    if (sender == fX264optNodctdcmtSwitch)
    {
        optNameToChange = @"no-dct-decimate";
    }
    if (sender == fX264optSubmePopUp)
    {
        optNameToChange = @"subq";
    }
    if (sender == fX264optTrellisPopUp)
    {
        optNameToChange = @"trellis";
    }
    if (sender == fX264optMixedRefsSwitch)
    {
        optNameToChange = @"mixed-refs";
    }
    if (sender == fX264optMotionEstPopUp)
    {
        optNameToChange = @"me";
    }
    if (sender == fX264optMERangePopUp)
    {
        optNameToChange = @"merange";
    }
    if (sender == fX264optWeightBSwitch)
    {
        optNameToChange = @"weightb";
    }
    if (sender == fX264optBRDOSwitch)
    {
        optNameToChange = @"brdo";
    }
    if (sender == fX264optBPyramidSwitch)
    {
        optNameToChange = @"b-pyramid";
    }
    if (sender == fX264optBiMESwitch)
    {
        optNameToChange = @"bime";
    }
    if (sender == fX264optDirectPredPopUp)
    {
        optNameToChange = @"direct";
    }
    if (sender == fX264optAlphaDeblockPopUp)
    {
        optNameToChange = @"deblock";
    }
    if (sender == fX264optBetaDeblockPopUp)
    {
        optNameToChange = @"deblock";
    }        
    if (sender == fX264optAnalysePopUp)
    {
        optNameToChange = @"analyse";
    }
    if (sender == fX264opt8x8dctSwitch)
    {
        optNameToChange = @"8x8dct";
    }
    if (sender == fX264optCabacSwitch)
    {
        optNameToChange = @"cabac";
    }
    
    /* Set widgets depending on the opt string in field */
    NSString * thisOpt; // The separated option such as "bframes=3"
    NSString * optName = @""; // The option name such as "bframes"
    NSString * optValue = @"";// The option value such as "3"
        NSArray *currentOptsArray;
        
        /*First, we get an opt string to process */
        //EXAMPLE: NSString *currentOptString = @"bframes=3:ref=1:subme=5:me=umh:no-fast-pskip=1:no-dct-decimate=1:trellis=2";
        NSString *currentOptString = [fDisplayX264Options stringValue];
        
        /*verify there is an occurrence of the opt specified by the sender to change */
        /*take care of any multi-value opt names here. This is extremely kludgy, but test for functionality
            and worry about pretty later */
        
        /*First, we create a pattern to check for ":"optNameToChange"=" to modify the option if the name falls after
            the first character of the opt string (hence the ":") */
        NSString *checkOptNameToChange = [NSString stringWithFormat:@":%@=",optNameToChange];
        NSRange currentOptRange = [currentOptString rangeOfString:checkOptNameToChange];
        /*Then we create a pattern to check for "<beginning of line>"optNameToChange"=" to modify the option to
            see if the name falls at the beginning of the line, where we would not have the ":" as a pattern to test against*/
        NSString *checkOptNameToChangeBeginning = [NSString stringWithFormat:@"%@=",optNameToChange];
        NSRange currentOptRangeBeginning = [currentOptString rangeOfString:checkOptNameToChangeBeginning];
        if (currentOptRange.location != NSNotFound || currentOptRangeBeginning.location == 0)
        {
            /* Create new empty opt string*/
            NSString *changedOptString = @"";
            
            /*Put individual options into an array based on the ":" separator for processing, result is "<opt>=<value>"*/
            currentOptsArray = [currentOptString componentsSeparatedByString:@":"];
            
            /*iterate through the array and get <opts> and <values*/
            int loopcounter;
            int currentOptsArrayCount = [currentOptsArray count];
            for (loopcounter = 0; loopcounter < currentOptsArrayCount; loopcounter++)
            {
                thisOpt = [currentOptsArray objectAtIndex:loopcounter];
                NSRange splitOptRange = [thisOpt rangeOfString:@"="];
                
                if (splitOptRange.location != NSNotFound)
                {
                    optName = [thisOpt substringToIndex:splitOptRange.location];
                    optValue = [thisOpt substringFromIndex:splitOptRange.location + 1];
                    
                    /*Run through the available widgets for x264 opts and set them, as you add widgets, 
                        they need to be added here. This should be moved to its own method probably*/
                    
                    /*If the optNameToChange is found, appropriately change the value or delete it if
                        "Unspecified" is set.*/
                    if ([optName isEqualToString:optNameToChange])
                    {
                        if ([optNameToChange isEqualToString:@"deblock"])
                        {
                            if ((([fX264optAlphaDeblockPopUp indexOfSelectedItem] == 0) || ([fX264optAlphaDeblockPopUp indexOfSelectedItem] == 7)) && (([fX264optBetaDeblockPopUp indexOfSelectedItem] == 0) || ([fX264optBetaDeblockPopUp indexOfSelectedItem] == 7)))
                            {
                                thisOpt = @"";                                
                            }
                            else
                            {
                                thisOpt = [NSString stringWithFormat:@"%@=%d,%d",optName, ([fX264optAlphaDeblockPopUp indexOfSelectedItem] != 0) ? [fX264optAlphaDeblockPopUp indexOfSelectedItem]-7 : 0,([fX264optBetaDeblockPopUp indexOfSelectedItem] != 0) ? [fX264optBetaDeblockPopUp indexOfSelectedItem]-7 : 0];
                            }
                        }
                        else if /*Boolean Switches*/ ([optNameToChange isEqualToString:@"mixed-refs"] || [optNameToChange isEqualToString:@"weightb"] || [optNameToChange isEqualToString:@"brdo"] || [optNameToChange isEqualToString:@"bime"] || [optNameToChange isEqualToString:@"b-pyramid"] || [optNameToChange isEqualToString:@"no-fast-pskip"] || [optNameToChange isEqualToString:@"no-dct-decimate"] || [optNameToChange isEqualToString:@"8x8dct"] )
                        {
                            if ([sender state] == 0)
                            {
                                thisOpt = @"";
                            }
                            else
                            {
                                thisOpt = [NSString stringWithFormat:@"%@=%d",optName,1];
                            }
                        }
                        else if ([optNameToChange isEqualToString:@"cabac"])
                        {
                            if ([sender state] == 1)
                            {
                                thisOpt = @"";
                            }
                            else
                            {
                                thisOpt = [NSString stringWithFormat:@"%@=%d",optName,0];
                            }
                        }                                        
                        else if (([sender indexOfSelectedItem] == 0) && (sender != fX264optAlphaDeblockPopUp) && (sender != fX264optBetaDeblockPopUp) ) // means that "unspecified" is chosen, lets then remove it from the string
                        {
                            thisOpt = @"";
                        }
                        else if ([optNameToChange isEqualToString:@"me"])
                        {
                            switch ([sender indexOfSelectedItem])
                            {   
                                case 1:
                                    thisOpt = [NSString stringWithFormat:@"%@=%@",optName,@"dia"];
                                    break;
                                    
                                case 2:
                                    thisOpt = [NSString stringWithFormat:@"%@=%@",optName,@"hex"];
                                    break;
                                    
                                case 3:
                                    thisOpt = [NSString stringWithFormat:@"%@=%@",optName,@"umh"];
                                    break;
                                    
                                case 4:
                                    thisOpt = [NSString stringWithFormat:@"%@=%@",optName,@"esa"];
                                    break;
                                    
                                default:
                                    break;
                            }
                        }
                        else if ([optNameToChange isEqualToString:@"direct"])
                        {
                            switch ([sender indexOfSelectedItem])
                            {   
                                case 1:
                                    thisOpt = [NSString stringWithFormat:@"%@=%@",optName,@"none"];
                                    break;
                                    
                                case 2:
                                    thisOpt = [NSString stringWithFormat:@"%@=%@",optName,@"spatial"];
                                    break;
                                    
                                case 3:
                                    thisOpt = [NSString stringWithFormat:@"%@=%@",optName,@"temporal"];
                                    break;
                                    
                                case 4:
                                    thisOpt = [NSString stringWithFormat:@"%@=%@",optName,@"auto"];
                                    break;
                                    
                                default:
                                    break;
                            }
                        }
                        else if ([optNameToChange isEqualToString:@"analyse"])
                        {
                            switch ([sender indexOfSelectedItem])
                            {   
                                case 1:
                                    thisOpt = [NSString stringWithFormat:@"%@=%@",optName,@"none"];
                                    break;
                                    
                                case 2:
                                    thisOpt = [NSString stringWithFormat:@"%@=%@",optName,@"all"];
                                    break;
                                    
                                default:
                                    break;
                            }
                        }
                        else if ([optNameToChange isEqualToString:@"merange"])
                        {
                            thisOpt = [NSString stringWithFormat:@"%@=%d",optName,[sender indexOfSelectedItem]+3];
                        }
                        else // we have a valid value to change, so change it
                        {
                            if ( [sender indexOfSelectedItem] != 0 )
                                thisOpt = [NSString stringWithFormat:@"%@=%d",optName,[sender indexOfSelectedItem]-1];
                        }
                    }
                }
                
                /* Construct New String for opts here */
                if ([thisOpt isEqualToString:@""])
                {
                    changedOptString = [NSString stringWithFormat:@"%@%@",changedOptString,thisOpt];
                }
                else
                {
                    if ([changedOptString isEqualToString:@""])
                    {
                        changedOptString = [NSString stringWithFormat:@"%@",thisOpt];
                    }
                    else
                    {
                        changedOptString = [NSString stringWithFormat:@"%@:%@",changedOptString,thisOpt];
                    }
                }
            }
            
            /* Change the option string to reflect the new mod settings */
            [fDisplayX264Options setStringValue:[NSString stringWithFormat:changedOptString]];	
        }
        else // if none exists, add it to the string
        {
            if ([[fDisplayX264Options stringValue] isEqualToString: @""])
            {
                if ([optNameToChange isEqualToString:@"me"])
                {
                    switch ([sender indexOfSelectedItem])
                    {   
                        case 1:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@=%@", 
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"dia"]]];
                            break;
                            
                        case 2:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@=%@", 
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"hex"]]];
                            break;
                            
                        case 3:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@=%@", 
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"umh"]]];
                            break;
                            
                        case 4:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@=%@", 
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"esa"]]];
                            break;
                            
                        default:
                            break;
                    }
                }
                else if ([optNameToChange isEqualToString:@"direct"])
                {
                    switch ([sender indexOfSelectedItem])
                    {   
                        case 1:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@=%@", 
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"none"]]];
                            break;
                            
                        case 2:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@=%@", 
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"spatial"]]];
                            break;
                            
                        case 3:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@=%@", 
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"temporal"]]];
                            break;
                            
                        case 4:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@=%@", 
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"auto"]]];
                            break;
                            
                        default:
                            break;
                    }
                }
                else if ([optNameToChange isEqualToString:@"analyse"])
                {
                    switch ([sender indexOfSelectedItem])
                    {   
                        case 1:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@=%@", 
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"none"]]];
                            break;
                            
                        case 2:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@=%@", 
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"all"]]];
                            break;
                            
                        default:
                            break;
                    }
                }
                
                else if ([optNameToChange isEqualToString:@"merange"])
                {
                    [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@=%@", 
                        [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"%d",[sender indexOfSelectedItem]+3]]];
                }
                else if ([optNameToChange isEqualToString:@"deblock"])
                {
                    [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@=%@", [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"%d,%d", ([fX264optAlphaDeblockPopUp indexOfSelectedItem] != 0) ? [fX264optAlphaDeblockPopUp indexOfSelectedItem]-7 : 0, ([fX264optBetaDeblockPopUp indexOfSelectedItem] != 0) ? [fX264optBetaDeblockPopUp indexOfSelectedItem]-7 : 0]]];                
                }
                else if /*Boolean Switches*/ ([optNameToChange isEqualToString:@"mixed-refs"] || [optNameToChange isEqualToString:@"weightb"] || [optNameToChange isEqualToString:@"brdo"] || [optNameToChange isEqualToString:@"bime"] || [optNameToChange isEqualToString:@"b-pyramid"] || [optNameToChange isEqualToString:@"no-fast-pskip"] || [optNameToChange isEqualToString:@"no-dct-decimate"] || [optNameToChange isEqualToString:@"8x8dct"] )            {
                    if ([sender state] == 0)
                    {
                        [fDisplayX264Options setStringValue:[NSString stringWithFormat:@""]];                    
                    }
                    else
                    {
                        [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@=%@", 
                            [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"%d",[sender state]]]];
                    }
                }
                else if ([optNameToChange isEqualToString:@"cabac"])
                {
                    if ([sender state] == 1)
                    {
                        [fDisplayX264Options setStringValue:[NSString stringWithFormat:@""]];                                        
                    }
                    else
                    {
                        [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@=%@", 
                            [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"%d",[sender state]]]];                    
                    }
                }            
                else
                {
                    if ( [sender indexOfSelectedItem] != 0 )
                        [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@=%@", 
                        [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"%d",[sender indexOfSelectedItem]-1]]];
                }
            }
            else
            {
                if ([optNameToChange isEqualToString:@"me"])
                {
                    switch ([sender indexOfSelectedItem])
                    {   
                        case 1:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@:%@=%@", 
                                [NSString stringWithFormat:[fDisplayX264Options stringValue]],
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"dia"]]];
                            break;
                            
                        case 2:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@:%@=%@", 
                                [NSString stringWithFormat:[fDisplayX264Options stringValue]],
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"hex"]]];
                            break;
                            
                        case 3:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@:%@=%@", 
                                [NSString stringWithFormat:[fDisplayX264Options stringValue]],
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"umh"]]];
                            break;
                            
                        case 4:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@:%@=%@", 
                                [NSString stringWithFormat:[fDisplayX264Options stringValue]],
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"esa"]]];
                            break;
                            
                        default:
                            break;
                    }
                }
                else if ([optNameToChange isEqualToString:@"direct"])
                {
                    switch ([sender indexOfSelectedItem])
                    {   
                        case 1:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@:%@=%@", 
                                [NSString stringWithFormat:[fDisplayX264Options stringValue]],
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"none"]]];
                            break;
                            
                        case 2:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@:%@=%@", 
                                [NSString stringWithFormat:[fDisplayX264Options stringValue]],
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"spatial"]]];
                            break;
                            
                        case 3:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@:%@=%@", 
                                [NSString stringWithFormat:[fDisplayX264Options stringValue]],
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"temporal"]]];
                            break;
                            
                        case 4:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@:%@=%@", 
                                [NSString stringWithFormat:[fDisplayX264Options stringValue]],
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"auto"]]];
                            break;
                            
                        default:
                            break;
                    }
                }
                else if ([optNameToChange isEqualToString:@"analyse"])
                {
                    switch ([sender indexOfSelectedItem])
                    {   
                        case 1:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@:%@=%@", 
                                [NSString stringWithFormat:[fDisplayX264Options stringValue]],
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"none"]]];
                            break;
                            
                        case 2:
                            [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@:%@=%@", 
                                [NSString stringWithFormat:[fDisplayX264Options stringValue]],
                                [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"all"]]];
                            break;
                            
                        default:
                            break;
                    }
                }
                
                else if ([optNameToChange isEqualToString:@"merange"])
                {
                    [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@:%@=%@",[NSString stringWithFormat:[fDisplayX264Options stringValue]], 
                        [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"%d",[sender indexOfSelectedItem]+3]]];
                }
                else if ([optNameToChange isEqualToString:@"deblock"])
                {
                    [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@:%@=%@", [NSString stringWithFormat:[fDisplayX264Options stringValue]], [NSString stringWithFormat:optNameToChange], [NSString stringWithFormat:@"%d,%d", ([fX264optAlphaDeblockPopUp indexOfSelectedItem] != 0) ? [fX264optAlphaDeblockPopUp indexOfSelectedItem]-7 : 0, ([fX264optBetaDeblockPopUp indexOfSelectedItem] != 0) ? [fX264optBetaDeblockPopUp indexOfSelectedItem]-7 : 0]]];                
                }
                else if /*Boolean Switches*/ ([optNameToChange isEqualToString:@"mixed-refs"] || [optNameToChange isEqualToString:@"weightb"] || [optNameToChange isEqualToString:@"brdo"] || [optNameToChange isEqualToString:@"bime"] || [optNameToChange isEqualToString:@"b-pyramid"] || [optNameToChange isEqualToString:@"no-fast-pskip"] || [optNameToChange isEqualToString:@"no-dct-decimate"] || [optNameToChange isEqualToString:@"8x8dct"] )
                {
                    if ([sender state] == 0)
                    {
                        [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@",[NSString stringWithFormat:[fDisplayX264Options stringValue]]]];                    
                    }
                    else
                    {
                        [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@:%@=%@",[NSString stringWithFormat:[fDisplayX264Options stringValue]], 
                            [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"%d",[sender state]]]];                
                    }
                }
                else if ([optNameToChange isEqualToString:@"cabac"])
                {
                    if ([sender state] == 1)
                    {
                        [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@",[NSString stringWithFormat:[fDisplayX264Options stringValue]]]];                    
                    }
                    else
                    {
                        [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@:%@=%@",[NSString stringWithFormat:[fDisplayX264Options stringValue]], 
                            [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"%d",[sender state]]]];
                    }
                }
                else
                {
                    if ( [sender indexOfSelectedItem] != 0 )
                        [fDisplayX264Options setStringValue:[NSString stringWithFormat:@"%@:%@=%@",[NSString stringWithFormat:[fDisplayX264Options stringValue]], 
                        [NSString stringWithFormat:optNameToChange],[NSString stringWithFormat:@"%d",[sender indexOfSelectedItem]-1]]];
                }
            }
        }
        
        /* We now need to reset the opt widgets since we changed some stuff */		
        [self X264AdvancedOptionsSet:NULL];		
}

@end