/usr/include/podofo/base/PdfCanvas.h is in libpodofo-dev 0.9.4-6.
This file is owned by root:root, with mode 0o644.
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* Copyright (C) 2006 by Dominik Seichter *
* domseichter@web.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Library 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 Library 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. *
* *
* In addition, as a special exception, the copyright holders give *
* permission to link the code of portions of this program with the *
* OpenSSL library under certain conditions as described in each *
* individual source file, and distribute linked combinations *
* including the two. *
* You must obey the GNU General Public License in all respects *
* for all of the code used other than OpenSSL. If you modify *
* file(s) with this exception, you may extend this exception to your *
* version of the file(s), but you are not obligated to do so. If you *
* do not wish to do so, delete this exception statement from your *
* version. If you delete this exception statement from all source *
* files in the program, then also delete it here. *
***************************************************************************/
#ifndef _PDF_CANVAS_H_
#define _PDF_CANVAS_H_
#include "PdfDefines.h"
#include "PdfArray.h"
namespace PoDoFo {
class PdfDictionary;
class PdfObject;
class PdfRect;
class PdfColor;
/** A interface that provides the necessary features
* for a painter to draw onto a PdfObject.
*/
class PODOFO_API PdfCanvas {
public:
/** Virtual destructor
* to avoid compiler warnings
*/
virtual ~PdfCanvas() {};
/** Get access to the contents object of this page.
* If you want to draw onto the page, you have to add
* drawing commands to the stream of the Contents object.
* \returns a contents object
*/
virtual PdfObject* GetContents() const = 0;
/** Get access an object that you can use to ADD drawing to.
* If you want to draw onto the page, you have to add
* drawing commands to the stream of the Contents object.
* \returns a contents object
*/
virtual PdfObject* GetContentsForAppending() const = 0;
/** Get access to the resources object of this page.
* This is most likely an internal object.
* \returns a resources object
*/
virtual PdfObject* GetResources() const = 0;
/** Get the current page size in PDF Units
* \returns a PdfRect containing the page size available for drawing
*/
virtual const PdfRect GetPageSize() const = 0;
/** Get a reference to a static procset PdfArray.
* \returns a reference to a static procset PdfArray
*/
static const PdfArray & GetProcSet();
/** Register a colourspace for a (separation) colour in the resource dictionary
* of this page or XObbject so that it can be used for any following drawing
* operations.
*
* \param rColor reference to the PdfColor
*/
void AddColorResource( const PdfColor & rColor );
/** Register an object in the resource dictionary of this page or XObbject
* so that it can be used for any following drawing operations.
*
* \param rIdentifier identifier of this object, e.g. /Ft0
* \param rRef reference to the object you want to register
* \param rName register under this key in the resource dictionary
*/
void AddResource( const PdfName & rIdentifier, const PdfReference & rRef, const PdfName & rName );
private:
/** The procset is the same for all
* PdfContents objects
*/
static PdfArray s_procset;
};
};
#endif /* _PDF_CANVAS_H_ */
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