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/*

 *      Copyright (c) 2005-2006 Philip Lamb (PRL) phil@eden.net.nz. All rights reserved.

 *     

 *      Rev             Date            Who             Changes

 *      1.0.0   2005-03-08      PRL             Written.

 *

 */

/*

 *

 * This file is part of ARToolKit.

 *

 * ARToolKit is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * ARToolKit is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with ARToolKit; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *

 */

#import "ARVideoSettingsController.h"

@implementation ARVideoSettingsController

- (id)initInput:(int)inInputIndex withSeqGrabComponent:(SeqGrabComponent)inSeqGrab withSGChannel:(SGChannel)inSgchanVideo

{

        ComponentResult err;

        self = [super init];

        // initialize NSApplication, using an entry point that is specific to bundles

    // this is a no-op for Cocoa apps, but is required by Carbon apps

        NSApplicationLoad();

        inputIndex = inInputIndex;

        seqGrab = inSeqGrab;

        sgchanVideo = inSgchanVideo;

        // Grab the defaults.

        NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];

        // Try to load the version key, used to see if we have any saved settings.

        mVersion = [defaults floatForKey:@"version"];

        if (!mVersion) {

                // No previous defaults so define new.

                mVersion = 1;

                // Write out the defaults.

                [defaults setInteger:mVersion forKey:@"version"];

                [defaults synchronize];

        }

        // Load defaults, first time though mUserData may be 0 which is fine.

        [self loadUserData:&mUserData fromDefaults:defaults forKey:[NSString stringWithFormat:@"sgVideoSettings%03i", inputIndex]];

        if (mUserData) {

                if ((err = SGSetChannelSettings(seqGrab, sgchanVideo, mUserData, 0)) != noErr) {

                        fprintf(stderr, "-sgConfigurationDialog: error %ld in SGSetChannelSettings().\n", err);

                }

        }

        return self;

}

- (void)dealloc

{

        if (mUserData) DisposeUserData(mUserData);

        [super dealloc];

}

// NOTE: There is a know bug in QuickTime 6.4 in which the

// Settings Dialog pops up in random locations...sigh...

- (IBAction) sgConfigurationDialog:(id)sender withStandardDialog:(int)standardDialog

{

        // Set up the settings panel list removing the "Compression" panel.

        ComponentResult                 err;

        if (standardDialog) {

                err = SGSettingsDialog(seqGrab, sgchanVideo, 0, 0, seqGrabSettingsPreviewOnly, NULL, 0L);

        } else {

                ComponentDescription    cDesc;

                long                                    cCount;

                ComponentDescription    cDesc2;

                cDesc.componentType = SeqGrabPanelType;

                cDesc.componentSubType = VideoMediaType;

                cDesc.componentManufacturer = cDesc.componentFlags = cDesc.componentFlagsMask = 0L;

                cCount = CountComponents(&cDesc);

                if (cCount == 0) {

                        fprintf(stderr, "-sgConfigurationDialog: error in CountComponents().\n");

                        goto bail;

                }

                Component *PanelListPtr = (Component *)NewPtr(sizeof(Component) * (cCount + 1));

                if (err = MemError() || NULL == PanelListPtr) {

                        fprintf(stderr, "-sgConfigurationDialog: error in NewPtr().\n");

                        goto bail;

                }

                Component *cPtr = PanelListPtr;

                long PanelCount = 0L;  

                Component c = NULL;

                while ((c = FindNextComponent(c, &cDesc)) != NULL) {

                        Handle hName = NewHandleClear(0);

                        if (err = MemError() || NULL == hName) {

                                fprintf(stderr, "-sgConfigurationDialog: error in NewHandle().\n");

                                goto bail;

                        }

                        GetComponentInfo(c, &cDesc2, hName, NULL, NULL);

                        if (PLstrcmp(*(unsigned char **)hName, "\pCompression") != 0) {

                                *cPtr = c;

                                cPtr++;

                                PanelCount++;

                        }

                        DisposeHandle(hName);

                }

                // Bring up the dialog and if the user didn't cancel

                // save the new channel settings for later.

                err = SGSettingsDialog(seqGrab, sgchanVideo, PanelCount, PanelListPtr, seqGrabSettingsPreviewOnly, NULL, 0L);

bail:

                DisposePtr((Ptr)PanelListPtr);

        }

        if (err == noErr) {

                // Dispose the old settings and get the new channel settings.

                if (mUserData) DisposeUserData(mUserData);

                if ((err = SGGetChannelSettings(seqGrab, sgchanVideo, &mUserData, 0)) != noErr) {

                        fprintf(stderr, "-sgConfigurationDialog: error %ld in SGGetChannelSettings().\n", err);

                }

                // Grab the defaults.

                NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];

                // Write the defaults.

                [self saveUserData:mUserData toDefaults:defaults withKey:[NSString stringWithFormat:@"sgVideoSettings%03i", inputIndex]];

                [defaults synchronize];

        } else if (err != userCanceledErr) {

                fprintf(stderr, "-sgConfigurationDialog: error %ld in SGSettingsDialog().\n", err);

        }

}

// Get the Channel Settings as UserData from the preferences

- (OSErr)loadUserData:(UserData *)outUserData fromDefaults:(NSUserDefaults *)inDefaults forKey:(NSString *)inKey

{

        NSData   *theSettings;

        Handle   theHandle = NULL;

        UserData theUserData = NULL;

        OSErr    err = paramErr;

        // read the new setttings from our preferences

        theSettings = [inDefaults objectForKey:inKey];

        if (theSettings) {

                err = PtrToHand([theSettings bytes], &theHandle, [theSettings length]);

                if (theHandle) {

                        err = NewUserDataFromHandle(theHandle, &theUserData);

                        if (theUserData) {

                                *outUserData = theUserData;

                        }

                        DisposeHandle(theHandle);

                }

        }

        return err;

}

// Save the Channel Settings from UserData in the preferences

- (OSErr)saveUserData:(UserData)inUserData toDefaults:(NSUserDefaults *)inDefaults withKey:(NSString *)outKey

{

        NSData *theSettings;

        Handle hSettings;

        OSErr  err;

        if (NULL == inUserData) return paramErr;

        hSettings = NewHandle(0);

        err = MemError();

        if (noErr == err) {

                err = PutUserDataIntoHandle(inUserData, hSettings);

                if (noErr == err) {

                        HLock(hSettings);

                        theSettings = [NSData dataWithBytes:(UInt8 *)*hSettings length:GetHandleSize(hSettings)];

                        // save the new setttings to our preferences

                        if (theSettings) {

                                [inDefaults setObject:theSettings forKey:outKey];

                                [inDefaults synchronize];

                        }

                }

                DisposeHandle(hSettings);

        }

        return err;

}

@end

OSStatus RequestSGSettings(const int inputIndex, SeqGrabComponent seqGrab, SGChannel sgchanVideo, const int showDialog, const int standardDialog)

{

    NSAutoreleasePool *localPool;

        ARVideoSettingsController *localController;

        // Sanity check.

        if (inputIndex < 0 || !seqGrab || !sgchanVideo) return (paramErr);

    // Calling Objective-C from C necessitates an autorelease pool.

        localPool = [[NSAutoreleasePool alloc] init];

    localController = [[ARVideoSettingsController alloc] initInput:inputIndex withSeqGrabComponent:seqGrab withSGChannel:sgchanVideo];

        if (showDialog) [localController sgConfigurationDialog:NULL withStandardDialog:standardDialog];

        [localController release];

    [localPool release];

    return (noErr);

}