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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 "PopplerCairoImageRenderer.h"
#import "PopplerFontManager.h"
#import "NSObject+PopplerObject.h"
#import "PopplerKitFunctions.h"
#include "bindings/poppler_cairo_img_renderer.h"
/**
* Non-Public methods.
*/
@interface PopplerCairoImageRenderer (Private)
@end
@implementation PopplerCairoImageRenderer
+ (BOOL) isSupported
{
#ifdef HAVE_CAIRO
return YES;
#else
return NO;
#endif
}
- (id) initWithDocument: (PopplerDocument*)aDocument
{
#ifndef HAVE_CAIRO
[NSException raise: PopplerException
format: @"your version of PopplerKit does not support cairo!"];
return nil;
#else
NSAssert(aDocument, @"no document");
self = [super init];
if (self)
{
document = [aDocument retain];
output_dev = poppler_cairo_img_device_create();
NSAssert(output_dev, @"poppler_cairo_img_device_create failed");
poppler_cairo_img_device_start_doc(output_dev, [document poppler_object]);
}
return self;
#endif
}
- (void) dealloc
{
#ifdef HAVE_CAIRO
if (output_dev)
{
poppler_cairo_img_device_destroy(output_dev);
}
[document release];
#endif
[super dealloc];
}
- (id) renderPage: (PopplerPage*)aPage
srcBox: (NSRect)aBox
scale: (float)aScale
{
#ifndef HAVE_CAIRO
[NSException raise: PopplerException
format: @"your version of PopplerKit does not support cairo!"];
return nil;
#else
int rc;
NSAssert(aPage, @"no page");
NSAssert(aScale > 0.0, @"invalid scale");
double hDPI = PopplerKitDPI().width * aScale;
double vDPI = PopplerKitDPI().height * aScale;
rc = poppler_cairo_img_device_display_slice(output_dev,
[aPage poppler_object],
[document poppler_object],
hDPI, vDPI, PopplerKitDPI().width,
0, // takes care of the page rotation itself
NSMinX(aBox), NSMinY(aBox),
NSWidth(aBox), NSHeight(aBox));
NSAssert(rc, @"poppler_cairo_img_device_display_slice failed");
unsigned char* cairoData;
int cairoWidth, cairoHeight, cairoRowstride;
rc = poppler_cairo_img_device_get_data(output_dev, &cairoData, &cairoWidth,
&cairoHeight, &cairoRowstride);
NSAssert(rc, @"poppler_cairo_img_device_get_data failed");
NSBitmapImageRep* imageRep;
imageRep = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes: NULL
pixelsWide: cairoWidth
pixelsHigh: cairoHeight
bitsPerSample: 8
samplesPerPixel: 3
hasAlpha: NO
isPlanar: NO
colorSpaceName: NSCalibratedRGBColorSpace
bytesPerRow: 3 * cairoWidth
bitsPerPixel: 8 * 3];
[imageRep autorelease];
unsigned char* repData = [imageRep bitmapData];
rc = poppler_cairo_img_device_get_rgb(cairoData, &repData, cairoWidth,
cairoHeight, cairoRowstride);
NSAssert(rc, @"poppler_cairo_img_device_get_rgb failed");
return imageRep;
#endif
}
- (id) renderPage: (PopplerPage*)aPage
scale: (float)aScale
{
return [self renderPage: aPage
srcBox: NSMakeRect(-1, -1, -1, -1)
scale: aScale];
}
@end
/* ----------------------------------------------------- */
/* Category Private */
/* ----------------------------------------------------- */
@implementation PopplerCairoImageRenderer (Private)
@end
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