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124 lines
4.2 KiB
124 lines
4.2 KiB
/* This file is part of the KDE project
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Copyright (c) 2001 Simon Hausmann <hausmann@kde.org>
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Copyright (C) 2002, 2003, 2004 Nicolas GOUTTE <goutte@kde.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __koPictureImage_h__
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#define __koPictureImage_h__
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#include "KoPictureBase.h"
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#include <tqstring.h>
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class KoPictureImagePrivate;
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// TODO: fix documentation
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/**
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* @internal
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* KoPictureImage is a container class for a TQImage-based picture
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* \todo remove private class, as the header is not installed
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*/
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class KoPictureImage : public KoPictureBase
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{
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public:
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/**
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* Default constructor.
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*/
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KoPictureImage();
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/**
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* Destructor.
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*/
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virtual ~KoPictureImage();
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KoPictureType::Type getType(void) const;
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KoPictureBase* newCopy(void) const;
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/**
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* Returns true if the picture is null.
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*/
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virtual bool isNull(void) const;
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/**
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* @brief Draw the image in a painter.
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*
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* No, this isn't as simple as painter.drawPixmap().
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* This method ensures that the best quality is used when printing, scaling the painter.
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*
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* The parameter @p fastMode allows the picture to be re-sized and drawn quicker if possible
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*
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* The parameters @p width, @p height define the desired size for the image
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* Note that the image is being scaled to that size using scale() - except when printing.
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* This avoids scaling the image at each paint event.
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*
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* The other parameters are very similar to TQPainter::drawPixmap :
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* (@p x, @p y) define the position in the painter,
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* (@p sx, @p sy) specify the top-left point in pixmap that is to be drawn. The default is (0, 0).
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* (@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
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* right of the pixmap.
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*/
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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);
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virtual TQDragObject* dragObject( TQWidget *dragSource = 0L, const char *name = 0L );
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virtual bool loadData(const TQByteArray& array, const TQString& extension);
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virtual bool save(TQIODevice* io) const;
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virtual TQSize getOriginalSize(void) const;
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virtual TQPixmap generatePixmap(const TQSize& size, bool smoothScale = false);
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virtual TQString getMimeType(const TQString& extension) const;
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/**
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* Generate a TQImage
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* (always in slow mode)
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*/
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virtual TQImage generateImage(const TQSize& size);
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virtual bool hasAlphaBuffer() const
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{ return m_originalImage.hasAlphaBuffer(); }
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virtual void setAlphaBuffer(bool enable)
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{ m_originalImage.setAlphaBuffer(enable); }
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virtual TQImage createAlphaMask(int conversion_flags = 0) const
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{ return m_originalImage.createAlphaMask((TQt::ImageConversionFlags)conversion_flags); }
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virtual void clearCache(void);
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protected:
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TQPixmap getPixmap(TQImage& image);
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void scaleAndCreatePixmap(const TQSize& size, bool fastMode=false);
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private:
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TQImage m_originalImage; ///< Image as Qimage
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TQByteArray m_rawData; ///< Binary copy of the loaded image file
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TQPixmap m_cachedPixmap; ///< Cached pixmap
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TQSize m_cachedSize; ///< size of the currently cached pixmap @see m_cachedPixmap
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/**
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* true, if the last cached image was done using fast mode.
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* false, if the last cached image was done using slow mode.
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*/
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bool m_cacheIsInFastMode;
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class Private;
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Private* d;
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};
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#endif /* __koPictureImage_h__ */
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