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/*
* Copyright (C) 2005 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 "Document.h"
#import "Controller.h"
#import "Preferences.h"
#import <Foundation/NSString.h>
#import <Foundation/NSException.h>
#import <Foundation/NSNotification.h>
NSString* kDocumentPageChangedNotification = @"DocumentPageChangedNotification";
/**
* Non-Public methods.
*/
@interface Document (Private)
- (void) _createRenderer;
@end
@implementation Document
- (id) init
{
self = [super init];
if (self)
{
pdfdoc = nil;
page = nil;
renderer = nil;
}
return self;
}
- (void) dealloc
{
NSLog(@"dealloc Document");
[pdfdoc release];
[(NSObject*)renderer release];
[super dealloc];
}
- (NSString*) windowNibName
{
return @"Document";
}
- (void) makeWindowControllers
{
Controller* ctrl = [[Controller alloc] initWithWindowNibName: [self windowNibName]];
[ctrl autorelease];
[self addWindowController: ctrl];
}
- (NSData*) dataRepresentationOfType: (NSString*)aType
{
return nil;
}
- (BOOL) readFromFile: (NSString*)aFileName ofType: (NSString*)aType
{
BOOL success = YES;
NS_DURING
pdfdoc = [[PopplerDocument alloc] initWithPath: aFileName];
[self setPageByIndex: 1];
[self _createRenderer];
NS_HANDLER
success = NO;
pdfdoc = nil;
NS_ENDHANDLER
return success;
}
- (PopplerDocument*) pdfDocument
{
return pdfdoc;
}
- (int) countPages
{
return [[self pdfDocument] countPages];
}
- (void) setPageByIndex: (int)aPageIndex
{
NSAssert([self pdfDocument], @"document contains no data");
page = [[self pdfDocument] page: aPageIndex];
[[NSNotificationCenter defaultCenter]
postNotificationName: kDocumentPageChangedNotification
object: self];
}
- (int) pageIndex
{
NSAssert([self pdfDocument], @"document contains no data");
return [page index];
}
- (BOOL) nextPage
{
if ([self pageIndex] >= [self countPages])
{
return NO;
}
[self setPageByIndex: [self pageIndex] + 1];
return YES;
}
- (BOOL) previousPage
{
if ([self pageIndex] <= 1)
{
return NO;
}
[self setPageByIndex: [self pageIndex] - 1];
return YES;
}
- (PopplerPage*) page
{
return page;
}
- (NSSize) pageSize
{
NSAssert([self page] > 0, @"no page");
return [[self page] size];
}
- (void) drawPageAtPoint: (NSPoint)aPoint scale: (float)aScale
{
NSAssert(renderer, @"no renderer");
NSAssert([self pdfDocument], @"document contains no data");
[renderer drawPage: [self page]
atPoint: aPoint
scale: aScale];
}
@end
/* ----------------------------------------------------- */
/* Category Private */
/* ----------------------------------------------------- */
@implementation Document (Private)
- (void) _createRenderer
{
id<PopplerBufferedRenderer> bufferedRenderer;
if ([[Preferences sharedPrefs] useCairo] && [PopplerCairoImageRenderer isSupported])
{
NSLog(@"use cairo rendering");
bufferedRenderer =
[[PopplerCairoImageRenderer alloc] initWithDocument: [self pdfDocument]];
}
else
{
NSLog(@"use generic splash rendering");
bufferedRenderer =
[[PopplerSplashRenderer alloc] initWithDocument: [self pdfDocument]];
}
NSAssert(bufferedRenderer, @"no buffered renderer created");
unsigned long cacheSize = [[Preferences sharedPrefs] pageCacheSize];
id<PopplerBufferedRenderer> baseRenderer = nil;
if (cacheSize > 0)
{
baseRenderer = [[PopplerCachingRenderer alloc] initWithRenderer: bufferedRenderer];
[(PopplerCachingRenderer*)baseRenderer setCacheSize: cacheSize];
[(NSObject*)bufferedRenderer release];
}
else
{
baseRenderer = bufferedRenderer;
}
renderer = [[PopplerDirectBufferedRenderer alloc] initWithRenderer: baseRenderer];
[(NSObject*)baseRenderer release];
}
@end
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