// vim: set tabstop=4 shiftwidth=4 noexpandtab:
/*
Gwenview: an image viewer
Copyright 2008 Aurélien Gâteau <aurelien.gateau@free.fr>

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., 51 Franklin Street, Fifth Floor, Cambridge, MA 02110-1301, USA.

*/
#ifndef ABSTRACTDOCUMENTEDITOR_H
#define ABSTRACTDOCUMENTEDITOR_H

#include <lib/gwenviewlib_export.h>

// Qt

// KDE

// Local
#include <lib/orientation.h>

class QImage;

namespace Gwenview {


class AbstractDocumentEditorPrivate;


/**
 * An interface which can be returned by some implementations of
 * AbstractDocumentImpl if they support edition.
 */
class GWENVIEWLIB_EXPORT AbstractDocumentEditor {
public:
	virtual ~AbstractDocumentEditor() {}

	/**
	 * Replaces the current image with image.
	 * Calling this while the document is loaded won't do anything.
	 *
	 * This method should only be called from a subclass of
	 * AbstractImageOperation and applied through Document::undoStack().
	 */
	virtual void setImage(const QImage&) = 0;

	/**
	 * Apply a transformation to the document image.
	 *
	 * Transformations are handled by the Document class because it can be
	 * done in a lossless way by some Document implementations.
	 *
	 * This method should only be called from a subclass of
	 * AbstractImageOperation and applied through Document::undoStack().
	 */
	virtual void applyTransformation(Orientation) = 0;
};


} // namespace

#endif /* ABSTRACTDOCUMENTEDITOR_H */
