darling-cocotron/Onyx2D/O2PDFArray.m

/* Copyright (c) 2007 Christopher J. W. Lloyd

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 <Foundation/NSString.h>
#import <Onyx2D/O2PDFArray.h>
#import <Onyx2D/O2PDFContext.h>
#import <Onyx2D/O2PDFObject_Boolean.h>
#import <Onyx2D/O2PDFObject_Integer.h>
#import <Onyx2D/O2PDFObject_Real.h>
#import <stddef.h>

@implementation O2PDFArray

+ (O2PDFArray *) pdfArray {
    return [[[self alloc] init] autorelease];
}

+ (O2PDFArray *) pdfArrayWithRect: (O2Rect) rect {
    O2PDFArray *result = [self pdfArray];

    [result addNumber: rect.origin.x];
    [result addNumber: rect.origin.y];
    [result addNumber: rect.size.width];
    [result addNumber: rect.size.height];

    return result;
}

+ (O2PDFArray *) pdfArrayWithNumbers: (O2PDFReal *) values
                               count: (NSUInteger) count
{
    O2PDFArray *result = [self pdfArray];
    NSInteger i;

    for (i = 0; i < count; i++)
        [result addNumber: values[i]];

    return result;
}

+ (O2PDFArray *) pdfArrayWithIntegers: (O2PDFInteger *) values
                                count: (NSUInteger) count
{
    O2PDFArray *result = [self pdfArray];
    NSInteger i;

    for (i = 0; i < count; i++)
        [result addInteger: values[i]];

    return result;
}

- init {
    _capacity = 1;
    _count = 0;
    _objects = NSZoneMalloc(NULL, sizeof(O2PDFObject *) * _capacity);
    return self;
}

- (void) dealloc {
    NSZoneFree(NULL, _objects);
    [super dealloc];
}

- (O2PDFObjectType) objectType {
    return kO2PDFObjectTypeArray;
}

- (BOOL) checkForType: (O2PDFObjectType) type value: (void *) value {
    if (type != kO2PDFObjectTypeArray)
        return NO;

    *((O2PDFArray **) value) = self;
    return YES;
}

- (NSUInteger) count {
    return _count;
}

- (void) addObject: (O2PDFObject *) object {
    [object retain];

    _count++;
    if (_count > _capacity) {
        _capacity = _count * 2;
        _objects = NSZoneRealloc([self zone], _objects, sizeof(id) * _capacity);
    }
    _objects[_count - 1] = object;
}

- (void) addNumber: (O2PDFReal) value {
    [self addObject: [O2PDFObject_Real pdfObjectWithReal: value]];
}

- (void) addInteger: (O2PDFInteger) value {
    [self addObject: [O2PDFObject_Integer pdfObjectWithInteger: value]];
}

- (void) addBoolean: (O2PDFBoolean) value {
    [self addObject: [O2PDFObject_Boolean pdfObjectWithBoolean: value]];
}

- (O2PDFObject *) objectAtIndex: (NSUInteger) index {
    if (index < _count)
        return _objects[index];
    else
        return nil;
}

- (BOOL) getObjectAtIndex: (NSUInteger) index value: (O2PDFObject **) objectp {
    *objectp = [[self objectAtIndex: index] realObject];

    return YES;
}

- (BOOL) getNullAtIndex: (NSUInteger) index {
    O2PDFObject *object = [self objectAtIndex: index];

    return ([object objectType] == kO2PDFObjectTypeNull) ? YES : NO;
}

- (BOOL) getBooleanAtIndex: (NSUInteger) index value: (O2PDFBoolean *) valuep {
    O2PDFObject *object = [self objectAtIndex: index];

    return [object checkForType: kO2PDFObjectTypeBoolean value: valuep];
}

- (BOOL) getIntegerAtIndex: (NSUInteger) index value: (O2PDFInteger *) valuep {
    O2PDFObject *object = [self objectAtIndex: index];

    return [object checkForType: kO2PDFObjectTypeInteger value: valuep];
}

- (BOOL) getNumberAtIndex: (NSUInteger) index value: (O2PDFReal *) valuep {
    O2PDFObject *object = [self objectAtIndex: index];

    return [object checkForType: kO2PDFObjectTypeReal value: valuep];
}

- (BOOL) getNameAtIndex: (NSUInteger) index value: (const char **) namep {
    O2PDFObject *object = [self objectAtIndex: index];

    return [object checkForType: kO2PDFObjectTypeName value: namep];
}

- (BOOL) getStringAtIndex: (NSUInteger) index value: (O2PDFString **) stringp {
    O2PDFObject *object = [self objectAtIndex: index];

    return [object checkForType: kO2PDFObjectTypeString value: stringp];
}

- (BOOL) getArrayAtIndex: (NSUInteger) index value: (O2PDFArray **) arrayp {
    O2PDFObject *object = [self objectAtIndex: index];

    return [object checkForType: kO2PDFObjectTypeArray value: arrayp];
}

- (BOOL) getDictionaryAtIndex: (NSUInteger) index
                        value: (O2PDFDictionary **) dictionaryp
{
    O2PDFObject *object = [self objectAtIndex: index];

    return [object checkForType: kO2PDFObjectTypeDictionary value: dictionaryp];
}

- (BOOL) getStreamAtIndex: (NSUInteger) index value: (O2PDFStream **) streamp {
    O2PDFObject *object = [self objectAtIndex: index];

    return [object checkForType: kO2PDFObjectTypeStream value: streamp];
}

- (BOOL) getNumbers: (O2PDFReal **) numbersp count: (NSUInteger *) countp {
    NSUInteger i, count = [self count];
    O2PDFReal *numbers;

    numbers = NSZoneMalloc(NULL, sizeof(O2PDFReal) * count);
    for (i = 0; i < count; i++) {
        if (![self getNumberAtIndex: i value: numbers + i]) {
            NSZoneFree(NULL, numbers);
            *numbersp = NULL;
            *countp = 0;
            return NO;
        }
    }

    *numbersp = numbers;
    *countp = count;
    return YES;
}

- (BOOL) getIntegers: (O2PDFInteger **) intsp count: (NSUInteger *) countp {
    NSUInteger i, count = [self count];
    O2PDFInteger *result;

    result = NSZoneMalloc(NULL, sizeof(O2PDFInteger) * count);
    for (i = 0; i < count; i++) {
        if (![self getIntegerAtIndex: i value: result + i]) {
            NSZoneFree(NULL, result);
            *intsp = NULL;
            *countp = 0;
            return NO;
        }
    }

    *intsp = result;
    *countp = count;
    return YES;
}

- (NSString *) description {
    NSMutableString *result = [NSMutableString string];
    NSInteger i;

    [result appendString: @"[ \n"];
    for (i = 0; i < _count; i++)
        [result appendFormat: @"%@ ", _objects[i]];
    [result appendString: @" ]\n"];
    return result;
}

- (void) encodeWithPDFContext: (O2PDFContext *) encoder {
    NSInteger i;

    [encoder appendString: @"[ "];
    for (i = 0; i < _count; i++)
        [encoder encodePDFObject: _objects[i]];
    [encoder appendString: @"]\n"];
}

@end