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tdegraphics/ksvg/core/CanvasFactory.cpp

177 lines
3.8 KiB

/*
Copyright (C) 2003 KSVG Team
This file is part of the KDE project
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
aint 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.
*/
#include <tqfile.h>
#include <kdebug.h>
#include <ksimpleconfig.h>
#include <kparts/componentfactory.h>
#include "KSVGCanvas.h"
#include "CanvasFactory.h"
using namespace KSVG;
CanvasFactory *CanvasFactory::s_factory = 0;
CanvasFactory::CanvasFactory()
{
m_canvasList.setAutoDelete(true);
}
CanvasFactory::~CanvasFactory()
{
}
CanvasFactory *CanvasFactory::self()
{
if(!s_factory)
s_factory = new CanvasFactory();
return s_factory;
}
void CanvasFactory::cleanup()
{
m_canvasList.clear();
}
void CanvasFactory::queryCanvas()
{
m_canvasList.clear();
TQValueList<KService::Ptr> traderList = KTrader::self()->query("KSVG/Renderer", "(Type == 'Service')");
KTrader::OfferList::Iterator it(traderList.begin());
for( ; it != traderList.end(); ++it)
{
KService::Ptr ptr = (*it);
TQString name = ptr->property("Name").toString();
TQString internal = ptr->property("X-KSVG-InternalName").toString();
if(name.isEmpty() || internal.isEmpty())
continue;
CanvasInfo *cinfo = new CanvasInfo();
cinfo->service = ptr;
cinfo->canvas = 0;
cinfo->name = name;
cinfo->internal = internal;
m_canvasList.append(cinfo);
}
if(m_canvasList.isEmpty())
{
kdError(26001) << "Couldn't load any canvas!!! FATAL ERROR." << endl;
return;
}
}
KSVGCanvas *CanvasFactory::loadCanvas(int width, int height)
{
queryCanvas();
KSimpleConfig *config = new KSimpleConfig("ksvgpluginrc", false);
config->setGroup("Canvas");
TQString load = config->readEntry("ActiveCanvas", "libart");
delete config;
TQPtrListIterator<CanvasInfo> it(m_canvasList);
CanvasInfo *info = it.current();
while((info = it.current()) != 0)
{
if(info->internal == load)
{
TQStringList args;
args.prepend(TQString::number(width));
args.prepend(TQString::number(height));
info->canvas = KParts::ComponentFactory::createInstanceFromLibrary<KSVGCanvas>(TQFile::encodeName(info->service->library()), 0, 0, args);
if(info->canvas)
return info->canvas;
else
{
kdError(26001) << "Failed to load canvas: " << load << " FATAL ERROR." << endl;
break;
}
}
++it;
}
return 0;
}
int CanvasFactory::itemInList(KSVGCanvas *canvas)
{
TQPtrListIterator<CanvasInfo> it(m_canvasList);
CanvasInfo *info = it.current();
unsigned int i = 0;
while((info = it.current()) != 0)
{
if(info->canvas == canvas)
return i;
i++;
++it;
}
return 0;
}
TQString CanvasFactory::internalNameFor(const TQString &name)
{
TQPtrListIterator<CanvasInfo> it(m_canvasList);
CanvasInfo *info = it.current();
while((info = it.current()) != 0)
{
if(info->name == name)
return info->internal;
++it;
}
return TQString::null;
}
void CanvasFactory::deleteCanvas(KSVGCanvas *canvas)
{
TQPtrListIterator<CanvasInfo> it(m_canvasList);
CanvasInfo *info = it.current();
while((info = it.current()) != 0)
{
if(info->canvas == canvas)
{
delete info->canvas;
info->canvas = 0;
}
++it;
}
}
TQPtrList<CanvasInfo> CanvasFactory::canvasList()
{
return m_canvasList;
}
// vim:ts=4:noet