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Current File : //usr/share/emscripten/tests/poppler/qt4/src/poppler-annotation-helper.h
/* poppler-annotation-helper.h: qt interface to poppler
* Copyright (C) 2006, 2008, Albert Astals Cid <aacid@kde.org>
* Copyright (C) 2008, Pino Toscano <pino@kde.org>
* Adapting code from
* Copyright (C) 2004 by Enrico Ros <eros.kde@email.it>
*
* 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, 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <QtCore/QDebug>
class QColor;
class AnnotColor;
namespace Poppler {
class XPDFReader
{
public:
// find named symbol and parse it
static inline void lookupName( Dict *, char *, QString & dest );
static inline void lookupString( Dict *, char *, QString & dest );
static inline void lookupBool( Dict *, char *, bool & dest );
static inline void lookupInt( Dict *, char *, int & dest );
static inline void lookupNum( Dict *, char *, double & dest );
static inline int lookupNumArray( Dict *, char *, double * dest, int len );
static inline void lookupColor( Dict *, char *, QColor & color );
static inline void lookupIntRef( Dict *, char *, int & dest );
static inline void lookupDate( Dict *, char *, QDateTime & dest );
// transform from user coords to normalized ones using the matrix M
static inline void transform( double * M, double x, double y, QPointF &res );
};
void XPDFReader::lookupName( Dict * dict, char * type, QString & dest )
{
Object nameObj;
dict->lookup( type, &nameObj );
if ( nameObj.isNull() )
return;
if ( nameObj.isName() )
dest = nameObj.getName();
else
qDebug() << type << " is not Name." << endl;
nameObj.free();
}
void XPDFReader::lookupString( Dict * dict, char * type, QString & dest )
{
Object stringObj;
dict->lookup( type, &stringObj );
if ( stringObj.isNull() )
return;
if ( stringObj.isString() )
dest = stringObj.getString()->getCString();
else
qDebug() << type << " is not String." << endl;
stringObj.free();
}
void XPDFReader::lookupBool( Dict * dict, char * type, bool & dest )
{
Object boolObj;
dict->lookup( type, &boolObj );
if ( boolObj.isNull() )
return;
if ( boolObj.isBool() )
dest = boolObj.getBool() == gTrue;
else
qDebug() << type << " is not Bool." << endl;
boolObj.free();
}
void XPDFReader::lookupInt( Dict * dict, char * type, int & dest )
{
Object intObj;
dict->lookup( type, &intObj );
if ( intObj.isNull() )
return;
if ( intObj.isInt() )
dest = intObj.getInt();
else
qDebug() << type << " is not Int." << endl;
intObj.free();
}
void XPDFReader::lookupNum( Dict * dict, char * type, double & dest )
{
Object numObj;
dict->lookup( type, &numObj );
if ( numObj.isNull() )
return;
if ( numObj.isNum() )
dest = numObj.getNum();
else
qDebug() << type << " is not Num." << endl;
numObj.free();
}
int XPDFReader::lookupNumArray( Dict * dict, char * type, double * dest, int len )
{
Object arrObj;
dict->lookup( type, &arrObj );
if ( arrObj.isNull() )
return 0;
Object numObj;
if ( arrObj.isArray() )
{
len = qMin( len, arrObj.arrayGetLength() );
for ( int i = 0; i < len; i++ )
{
dest[i] = arrObj.arrayGet( i, &numObj )->getNum();
numObj.free();
}
}
else
{
len = 0;
qDebug() << type << "is not Array." << endl;
}
arrObj.free();
return len;
}
void XPDFReader::lookupColor( Dict * dict, char * type, QColor & dest )
{
double c[3];
if ( XPDFReader::lookupNumArray( dict, type, c, 3 ) == 3 )
dest = QColor( (int)(c[0]*255.0), (int)(c[1]*255.0), (int)(c[2]*255.0));
}
void XPDFReader::lookupIntRef( Dict * dict, char * type, int & dest )
{
Object refObj;
dict->lookupNF( type, &refObj );
if ( refObj.isNull() )
return;
if ( refObj.isRef() )
dest = refObj.getRefNum();
else
qDebug() << type << " is not Ref." << endl;
refObj.free();
}
void XPDFReader::lookupDate( Dict * dict, char * type, QDateTime & dest )
{
Object dateObj;
dict->lookup( type, &dateObj );
if ( dateObj.isNull() )
return;
if ( dateObj.isString() )
{
dest = convertDate( dateObj.getString()->getCString() );
}
else
qDebug() << type << " is not Date" << endl;
dateObj.free();
}
void XPDFReader::transform( double * M, double x, double y, QPointF &res )
{
res.setX( M[0] * x + M[2] * y + M[4] );
res.setY( M[1] * x + M[3] * y + M[5] );
}
/** @short Helper classes for CROSSDEPS resolving and DS conversion. */
struct ResolveRevision
{
int prevAnnotationID; // ID of the annotation to be reparended
int nextAnnotationID; // (only needed for speeding up resolving)
Annotation * nextAnnotation; // annotation that will act as parent
Annotation::RevScope nextScope; // scope of revision (Reply)
Annotation::RevType nextType; // type of revision (None)
};
struct ResolveWindow
{
AnnotPopup * popup; // the (maybe shared) window
Annotation * annotation; // annotation having the popup window
};
struct PostProcessText // this handles a special pdf case conversion
{
Annotation * textAnnotation; // a popup text annotation (not FreeText)
bool opened; // pdf property to convert to window flags
};
struct PopupWindow
{
Annotation * dummyAnnotation; // window properties (in pdf as Annotation)
bool shown; // converted to Annotation::Hidden flag
};
QColor convertAnnotColor( AnnotColor *color );
}
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