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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 "PopplerPage.h"
#import "PopplerDocument.h"
#import "PopplerTextHit.h"
#import "NSObject+PopplerObject.h"
#import "NSString+PopplerKitAdditions.h"
#import "PopplerKitFunctions.h"
#include "bindings/poppler_page.h"
#include "bindings/poppler_text.h"
@interface PopplerPage (Private)
@end
@implementation PopplerPage
- (id) initWithDocument: (PopplerDocument*)aDocument index: (unsigned)anIndex
{
NSAssert(aDocument, @"no document");
NSAssert(anIndex > 0 && anIndex <= [aDocument countPages], @"invalid page index");
if (![super init])
return nil;
index = anIndex;
document = aDocument;
poppler_page = poppler_page_create([aDocument poppler_object], anIndex);
NSAssert(poppler_page, @"poppler_page_create returned NULL");
return self;
}
- (void) dealloc
{
poppler_page_destroy(poppler_page);
[super dealloc];
}
- (unsigned) index
{
return index;
}
- (NSSize) size
{
double width;
double height;
switch ([self orientation])
{
case POPPLER_PAGE_ORIENTATION_PORTRAIT:
case POPPLER_PAGE_ORIENTATION_UPSIDEDOWN: {
width = poppler_page_get_width(poppler_page);
height = poppler_page_get_height(poppler_page);
break;
}
case POPPLER_PAGE_ORIENTATION_LANDSCAPE:
case POPPLER_PAGE_ORIENTATION_SEASCAPE: {
width = poppler_page_get_height(poppler_page);
height = poppler_page_get_width(poppler_page);
break;
}
default: {
width = height = 0;
NSAssert(NO, @"unreachable code");
}
}
return NSMakeSize((float)width, (float)height);
}
- (int) rotate
{
return poppler_page_get_rotate(poppler_page);
}
- (PopplerPageOrientation) orientation
{
int rotate = poppler_page_get_rotate(poppler_page);
NSAssert(rotate >= 0, @"got negative rotation factor");
PopplerPageOrientation orientation = POPPLER_PAGE_ORIENTATION_UNSET;
switch (rotate)
{
case 90:
orientation = POPPLER_PAGE_ORIENTATION_LANDSCAPE; break;
case 180:
orientation = POPPLER_PAGE_ORIENTATION_UPSIDEDOWN; break;
case 270:
orientation = POPPLER_PAGE_ORIENTATION_SEASCAPE; break;
default:
orientation = POPPLER_PAGE_ORIENTATION_PORTRAIT;
}
return orientation;
}
- (NSArray*) findText: (NSString*)aTextString;
{
NSMutableArray* hits = [NSMutableArray array];
if (!aTextString || [aTextString length] == 0)
return hits;
void* textDevice = poppler_text_device_create(YES, NO, NO);
poppler_text_display_page(textDevice, poppler_page, [[self document] poppler_object],
PopplerKitDPI().width, PopplerKitDPI().height, [self rotate],
YES);
unsigned utf32Length = 0;
unsigned int* utf32String = [aTextString getUTF32String: &utf32Length];
double height = poppler_page_get_height(poppler_page);
double xMin, yMin, xMax, yMax = 0;
while(poppler_text_find(textDevice, utf32String, utf32Length,
NO, YES, // startAtTop, stopAtBottom
YES, NO, // startAtLast, stopAtLast
&xMin, &yMin, &xMax, &yMax)) {
// coordinates as returned by poppler are upside down!
NSRect hitArea = NSMakeRect(xMin, (height - yMax), (xMax - xMin), (yMax - yMin));
PopplerTextHit* hit = [[PopplerTextHit alloc] initWithPage: self hitArea: hitArea context: nil];
[hits addObject: hit];
[hit release];
}
poppler_text_device_destroy(textDevice);
NSZoneFree(NSDefaultMallocZone(), utf32String);
return hits;
}
- (PopplerDocument*) document
{
return document;
}
- (void*) poppler_object
{
return poppler_page;
}
@end
/* ----------------------------------------------------- */
/* Category Private */
/* ----------------------------------------------------- */
@implementation PopplerPage (Private)
@end
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