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/*
* Copyright (C) 2004 Stefan Kleine Stegemann
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#import "PopplerDocument.h"
#import "PopplerPage.h"
#import "PopplerFontManager.h"
#import "PopplerKitFunctions.h"
#import "CountingRef.h"
#import <Foundation/NSException.h>
#include "bindings/poppler_document.h"
NSString* PopplerException = @"PopplerException";
@interface PopplerDocumentRefDelegate : NSObject
+ (PopplerDocumentRefDelegate*) delegate;
@end
@interface PopplerDocument (Private)
- (NSArray*) _loadPages: (void*)aDocument;
@end
@implementation PopplerDocument
+ (void) initialize
{
static BOOL done = NO;
if (!done)
{
NSAssert(PopplerKitInit(), @"PopplerKitInit failed");
done = YES;
}
}
- (id) initWithPath: (NSString*)aPath
{
if (!aPath)
{
[NSException raise: NSInvalidArgumentException format: @"nil path"];
}
self = [super init];
if (self)
{
poppler_doc = nil;
void* poppler_doc_ptr = poppler_document_create_with_path([aPath cString]);
NSAssert(poppler_doc_ptr, @"poppler_document_create_with_path returned NULL");
// is the dokument ok?
if (!poppler_document_is_ok(poppler_doc_ptr))
{
int err = poppler_document_get_err_code(poppler_doc_ptr);
poppler_document_destroy(poppler_doc_ptr);
[self dealloc];
[NSException raise: PopplerException
format: @"error opening document (err=%d)", err];
}
poppler_doc = [[CountingRef alloc] initWithPtr: poppler_doc_ptr
delegate: [PopplerDocumentRefDelegate delegate]];
pages = [[NSArray alloc] initWithArray: [self _loadPages: poppler_doc_ptr]];
}
return self;
}
- (void) dealloc
{
[pages release];
[(NSObject*)poppler_doc release];
[super dealloc];
}
+ (PopplerDocument*) documentWithPath: (NSString*)aPath
{
return [[[self alloc] initWithPath: aPath] autorelease];
}
- (unsigned) countPages
{
return poppler_document_count_pages([poppler_doc ptr]);
}
- (PopplerPage*) page: (unsigned)index;
{
if ((index <= 0) || (index > [self countPages]))
[NSException raise: NSInvalidArgumentException
format: @"page index %d is out of range", index];
return [pages objectAtIndex: index - 1];
}
- (unsigned) nextPageIndex: (unsigned)index;
{
if (index == [self countPages])
return 1;
return index + 1;
}
- (unsigned) previousPageIndex: (unsigned)index;
{
if (index == 1)
return [self countPages];
return index - 1;
}
- (void*) poppler_object
{
return [poppler_doc ptr];
}
@end
/* ----------------------------------------------------- */
/* Category Private */
/* ----------------------------------------------------- */
@implementation PopplerDocument (Private)
- (NSArray*) _loadPages: (void*)aDocument
{
NSMutableArray* result = [NSMutableArray arrayWithCapacity: [self countPages]];
int i;
for (i = 1; i <= [self countPages]; i++)
{
PopplerPage* page = [[PopplerPage alloc] initWithDocument: self index: i];
NSAssert(page, @"page creation failed");
[result addObject: page];
[page release];
}
return result;
}
@end
/* ----------------------------------------------------- */
/* Class PopplerDocumentRefDelegate */
/* ----------------------------------------------------- */
@implementation PopplerDocumentRefDelegate
+ (PopplerDocumentRefDelegate*) delegate
{
return [[[self alloc] init] autorelease];
}
- (void) freePtrForReference: (CountingRef*)aReference
{
if (![aReference isNULL])
{
poppler_document_destroy([aReference ptr]);
}
}
@end
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