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/* This file is part of the KDE libraries
Copyright (C) 2000 Carsten Pfeiffer <pfeiffer@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 KPIXMAPSPLITTER_H
#define KPIXMAPSPLITTER_H
#include <tqpixmap.h>
#include <tqrect.h>
#include <tqsize.h>
#include <tqstring.h>
#include <kdelibs_export.h>
class KPixmapSplitterPrivate;
/**
* @short A class to split a pixmap into several items.
*
* If you have a pixmap containing several items (icons), you can use this
* class to get the coordinates of each item.
*
* For example, if you have a pixmap with 25 items and you want to get the
* 4th item as a pixmap (every item being 20x10 pixels):
* \code
* KPixmapSplitter splitter;
* splitter.setPixmap( somePixmap );
* splitter.setItemSize( TQSize( 20, 10 ));
*
* TQPixmap item( 20, 10 );
* item.fill( Qt::white );
* TQRect rect = splitter.coordinates( 4 );
* if ( !rect.isEmpty() )
* bitBlt( &item, TQPoint(0,0), &somePixmap, rect, CopyROP );
* \endcode
*
* @author Carsten Pfeiffer <pfeiffer@kde.org>
*/
class KDEFX_EXPORT KPixmapSplitter
{
public:
/**
* Constructor, does nothing but initialize some default-values.
*/
KPixmapSplitter();
~KPixmapSplitter();
/**
* Sets the pixmap to be split.
*/
void setPixmap( const TQPixmap& pixmap );
/**
* @returns the pixmap that has been set via setPixmap().
*/
const TQPixmap& pixmap() const { return m_pixmap; }
/**
* Sets the size of the items you want to get out of the given pixmap.
* The TQRect of #coordinates(int) will have the width and height of exactly
* this @p size.
*/
void setItemSize( const TQSize& size );
/**
* @returns the set size of the items (coordinates) you want to get
* out of the given pixmap.
*/
TQSize itemSize() const { return m_itemSize; }
/**
* If there is space between rows in the given pixmap, you have to specify
* how many pixels there are.
*/
void setVSpacing( int spacing );
/**
* If there is space between columns in the given pixmap, you have to
* specify how many pixels there are.
*/
void setHSpacing( int spacing );
/**
* @returns the coordinates of the item at position pos in the given
* pixmap.
*/
TQRect coordinates( int pos );
/**
* Overloaded for convenience. Returns the item at the position of the
* given character (when using a latin1 font-pixmap)
*/
TQRect coordinates( const TQChar& ch );
private:
TQPixmap m_pixmap;
TQSize m_itemSize;
int m_vSpacing;
int m_hSpacing;
int m_numCols;
int m_numRows;
bool m_dirty;
KPixmapSplitterPrivate* d;
};
#endif // KPIXMAPSPLITTER_H
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