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cocoa-stuff / Quicktime / MetadataItem.h

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/* Copyright (c) 2008 Sven Weidauer
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated 
 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation 
 * the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and 
 * to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the 
 * Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO 
 * THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 
 */


#import <Cocoa/Cocoa.h>
#import <QuickTime/QuickTime.h>

@class MetadataContainer;

@interface MetadataItem : NSObject {
	MetadataContainer *container;
	QTMetaDataItem item;
}

- initWithContainer: (MetadataContainer *) newContainer item: (QTMetaDataItem) newItem;

- (NSData *) valueData;
- (BOOL) setValueData: (NSData *) data type: (UInt32) dataType;

- (id) value;
- (BOOL) setValue: (id) newValue; // supports NSImage, NSString and NSData. Others (especially NSNumbers) are not supported

- (BOOL) setUInt8Value: (UInt8) newValue;
- (BOOL) setUInt16Value: (UInt16) newValue;
- (BOOL) setUInt32Value: (UInt32) newValue;
- (BOOL) setUInt64Value: (UInt64) newValue;

- (BOOL) setSInt8Value: (SInt8) newValue;
- (BOOL) setSInt16Value: (SInt16) newValue;
- (BOOL) setSInt32Value: (SInt32) newValue;
- (BOOL) setSInt64Value: (SInt64) newValue;

- (BOOL) setFloatValue: (float) newValue;
- (BOOL) setDoubleValue: (double) newValue;

- (NSString *) locale;
- (BOOL) setLocale: (NSString *) newLocale;

- (id) key;

// return string descriptions
- (NSString *) dataType;
- (NSString *) storageFormat;
- (NSString *) keyFormat;

// Access to internals

- (BOOL) getPropertyInfoForClass: (QTPropertyClass) propClass ID: (QTPropertyID) propID  type: (QTPropertyValueType *) outType size: (NSUInteger *) outSize flags: (UInt32 *) outFlags;
- (NSData *) getPropertyDataForClass: (QTPropertyClass) propClass ID: (QTPropertyID) propID type: (QTPropertyValueType *) outType;

- (QTMetaDataItem) quickTimeMetadataItem;

@end