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