kdefx

kpixmapsplitter.cpp

00001 /* This file is part of the KDE libraries
00002     Copyright (C) 2000 Carsten Pfeiffer <pfeiffer@kde.org>
00003 
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public License
00015     along with this library; see the file COPYING.LIB.  If not, write to
00016     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017     Boston, MA 02110-1301, USA.
00018 */
00019 
00020 #include "kpixmapsplitter.h"
00021 
00022 KPixmapSplitter::KPixmapSplitter()
00023     : m_itemSize( 4, 7 ),
00024       m_vSpacing( 0 ),
00025       m_hSpacing( 0 ),
00026       m_numCols( 0 ),
00027       m_numRows( 0 ),
00028       m_dirty( false )
00029 {
00030 }
00031 
00032 KPixmapSplitter::~KPixmapSplitter()
00033 {
00034 }
00035 
00036 void KPixmapSplitter::setPixmap( const QPixmap& pixmap )
00037 {
00038     m_pixmap = pixmap;
00039     m_dirty = true;
00040 }
00041 
00042 void KPixmapSplitter::setItemSize( const QSize& size )
00043 {
00044     if ( size != m_itemSize ) {
00045     m_itemSize = size;
00046     m_dirty = true;
00047     }
00048 }
00049 
00050 void KPixmapSplitter::setVSpacing( int spacing )
00051 {
00052     if ( spacing != m_vSpacing ) {
00053     m_vSpacing = spacing;
00054     m_dirty = true;
00055     }
00056 }
00057 
00058 void KPixmapSplitter::setHSpacing( int spacing )
00059 {
00060     if ( spacing != m_hSpacing ) {
00061     m_hSpacing = spacing;
00062     m_dirty = true;
00063     }
00064 }
00065 
00066 
00067 QRect KPixmapSplitter::coordinates( int pos )
00068 {
00069     if ( pos < 0 || m_pixmap.isNull() )
00070     return QRect();
00071 
00072     if ( m_dirty ) {
00073     m_numCols = m_pixmap.width() / ( m_itemSize.width() + m_hSpacing );
00074     m_numRows = m_pixmap.height() / ( m_itemSize.height() + m_vSpacing );
00075     m_dirty = false;
00076     // qDebug("cols: %i, rows: %i (pixmap: %i, %i)", m_numCols, m_numRows, m_pixmap.width(), m_pixmap.height());
00077     }
00078 
00079     if ( m_numCols == 0 || m_numRows == 0 )
00080     return QRect();
00081 
00082     int row = pos / m_numCols;
00083     int col = pos - (row * m_numCols);
00084 
00085     return QRect( col * (m_itemSize.width() + m_hSpacing),
00086           row * (m_itemSize.height() + m_vSpacing),
00087           m_itemSize.width(),
00088           m_itemSize.height() );
00089 }
00090 
00091 QRect KPixmapSplitter::coordinates( const QChar& ch )
00092 {
00093     return coordinates( (unsigned char) ch.latin1() );
00094 }
00095
kdefx

kpixmapsplitter.cpp

kdefx

API Reference
