koffice/lib/kofficecore/KoPictureWmf.h

/* This file is part of the KDE project
   Copyright (c) 2001 Simon Hausmann <hausmann@kde.org>
   Copyright (C) 2002 Nicolas GOUTTE <goutte@kde.org>

   This library 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 library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/
#ifndef __koPictureWmf_h__
#define __koPictureWmf_h__

#include <tqstring.h>
#include <tqpicture.h>
#include <koffice_export.h>

class TQPainter;
class TQSize;

/**
 * \file koPictureWmf.h
 * \todo fix documentation
 */

/**
 * @internal
 * KoPictureWmf is a container class for WMF pictures.
 */
class KOFFICECORE_EXPORT KoPictureWmf : public KoPictureBase
{
public:
    /**
     * Default constructor.
     */
    KoPictureWmf();

    /**
     * Destructor.
     */
    virtual ~KoPictureWmf();

    virtual KoPictureType::Type getType(void) const;

    virtual KoPictureBase* newCopy(void) const;


    /**
     * Returns true if the picture is null.
     */
    virtual bool isNull(void) const;

    /**
     * @brief Draw the image in a painter.
     *
     * The parameter @p fastMode allows the picture to be re-sized and drawn quicker if possible
     *
     * The parameters @p width, @p height define the desired size for the image
     * Note that the image is being scaled to that size using scale() - except when printing.
     * This avoids scaling the image at each paint event.
     *
     * The other parameters are very similar to TQPainter::drawPixmap :
     * (@p x, @p y) define the position in the painter,
     * (@p sx, @p sy) specify the top-left point in pixmap that is to be drawn. The default is (0, 0).
     * (@p sw, @p sh) specify the size of the pixmap that is to be drawn. The default, (-1, -1), means all the way to the bottom
     * right of the pixmap.
     */
    virtual void draw(TQPainter& painter, int x, int y, int width, int height, int sx = 0, int sy = 0, int sw = -1, int sh = -1, bool fastMode = false);

    virtual bool loadData(const TQByteArray& array, const TQString& extension);

    /**
     * save file
     * @param io TQIODevice used for saving
     */
    virtual bool save(TQIODevice* io) const;

    virtual TQSize getOriginalSize(void) const;

    virtual TQPixmap generatePixmap(const TQSize& size, bool smoothScale = false);

    virtual TQString getMimeType(const TQString& extension) const;

protected:
    TQPixmap getPixmap(TQImage& image);
    /**
     * @internal
     * Draw a TQPicture
     */
    void drawTQPicture(TQPicture& clipart, TQPainter& painter,
        int x, int y, int width, int height, int sx, int sy, int sw, int sh);
protected:
    TQPicture m_clipart;
    TQByteArray m_rawData;
    TQSize m_size;
    TQSize m_originalSize;
};

#endif /* __koPictureWmf_h__ */