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//=============================================================================
//
// File : kvi_imagelib.cpp
// Creation date : Wed Jul 21 1999 16:41:26 by Szymon Stefanek
//
// This file is part of the KVirc irc client distribution
// Copyright (C) 1999-2000 Szymon Stefanek (pragma at kvirc dot net)
//
// This program is FREE software. You can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your opinion) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, write to the Free Software Foundation,
// Inc. ,51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//=============================================================================
#define __KVILIB__
#include <qnamespace.h>
#include "kvi_imagelib.h"
#include "kvi_fileutils.h"
#include "kvi_locale.h"
#include "kvi_memmove.h"
#include <qpixmap.h>
//KviImageLibrary::KviImageLibrary(const QPixmap &pixmap,int imageWidth,int imageHeight)
//{
// if(pixmap.isNull())m_pLibrary=0;
// else m_pLibrary=new QPixmap(pixmap);
// setImageSize(imageWidth,imageHeight);
//}
KviImageLibrary::KviImageLibrary(const QString &path,int imageWidth,int imageHeight)
{
m_pLibrary=0;
loadLibrary(path);
setImageSize(imageWidth,imageHeight);
}
KviImageLibrary::KviImageLibrary(const QString &path1,const QString &path2,int imageWidth,int imageHeight)
{
m_pLibrary=0;
if(KviFileUtils::fileExists(path1))
{
loadLibrary(path1);
if(m_pLibrary==0)loadLibrary(path2);
} else loadLibrary(path2);
setImageSize(imageWidth,imageHeight);
}
KviImageLibrary::~KviImageLibrary()
{
unloadLibrary();
}
void KviImageLibrary::unloadLibrary()
{
if(m_pLibrary)delete m_pLibrary;
m_pLibrary=0;
}
bool KviImageLibrary::setImageSize(int imageWidth,int imageHeight)
{
m_iWidth=((imageWidth>0) ? imageWidth : 16);
m_iHeight=((imageHeight>0) ? imageHeight : 16);
return true;
}
bool KviImageLibrary::loadLibrary(const QString &path)
{
if(m_pLibrary)delete m_pLibrary;
m_pLibrary=new QImage(path);
if(m_pLibrary->isNull())
{
delete m_pLibrary;
m_pLibrary=0;
debug("WARNING : Can not load image library %s",KviQString::toUtf8(path).data());
}
return (m_pLibrary != 0);
}
int KviImageLibrary::imageCount()
{
if(!m_pLibrary)return 0;
if((m_iWidth<1)||(m_iHeight<1))return 0;
int nRows=m_pLibrary->width()/m_iWidth;
return ( nRows * (m_pLibrary->height()/m_iHeight));
}
QPixmap KviImageLibrary::getImage(int zeroBasedIndex)
{
if((zeroBasedIndex >= imageCount())||(zeroBasedIndex < 0)||(m_pLibrary->depth() < 8))
{
QPixmap image(32,32);
image.fill(); //White fill
return image;
}
// Im per row is not zero...because imageCount returned non zero.
int imPerRow=(m_pLibrary->width() / m_iWidth);
int xOffset=(zeroBasedIndex % imPerRow) * m_iWidth;
int yOffset=(zeroBasedIndex / imPerRow) * m_iHeight;
#ifdef COMPILE_USE_QT4
QImage image(m_iWidth,m_iHeight,m_pLibrary->format());
#else
QImage image(m_iWidth,m_iHeight,m_pLibrary->depth());
#endif
int d = image.depth() / 8;
#ifndef COMPILE_USE_QT4
if(d == 4)image.setAlphaBuffer(true); // Qt 4.x should manage it automagically
#endif
//Copy the image data
//bitBlt(&image,0,0,m_pLibrary,xOffset,yOffset,m_iWidth,m_iHeight,Qt::CopyROP,false);
for(int i=0;i<m_iHeight;i++)
kvi_memmove(image.scanLine(i),m_pLibrary->scanLine(i + yOffset) + (xOffset * d),m_iWidth * d);
#ifdef COMPILE_USE_QT4
QPixmap p = QPixmap::fromImage(image);
#else
QPixmap p(image);
#endif
return p;
}
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