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// Copyright (C) 2000-2004, Luca Padovani <luca.padovani@cs.unibo.it>.
//
// This file is part of GtkMathView, a Gtk widget for MathML.
//
// GtkMathView 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 option) any later version.
//
// GtkMathView 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 GtkMathView; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// For details, see the GtkMathView World-Wide-Web page,
// http://helm.cs.unibo.it/mml-widget/, or send a mail to
// <lpadovan@cs.unibo.it>
#include <config.h>
#include "AbstractLogger.hh"
#include "libxml2_MathView.hh"
#include "libxml2_Model.hh"
#include "libxml2_Setup.hh"
#include "libxml2_Builder.hh"
libxml2_MathView::libxml2_MathView(const SmartPtr<AbstractLogger>& logger)
: View(logger), currentDoc(0), docOwner(false)
{
setBuilder(libxml2_Builder::create());
}
libxml2_MathView::~libxml2_MathView()
{
if (docOwner && currentDoc) xmlFreeDoc(currentDoc);
currentDoc = 0;
docOwner = false;
}
SmartPtr<libxml2_MathView>
libxml2_MathView::create(const SmartPtr<AbstractLogger>& logger)
{ return new libxml2_MathView(logger); }
void
libxml2_MathView::unload()
{
resetRootElement();
if (docOwner && currentDoc) xmlFreeDoc(currentDoc);
currentDoc = 0;
docOwner = false;
if (SmartPtr<libxml2_Builder> builder = smart_cast<libxml2_Builder>(getBuilder()))
builder->setRootModelElement(0);
}
bool
libxml2_MathView::loadURI(const char* name)
{
assert(name);
if (xmlDoc* doc = libxml2_Model::document(*getLogger(), name, true))
{
if (loadDocument(doc))
{
docOwner = true;
return true;
}
else
{
resetRootElement();
xmlFreeDoc(doc);
return false;
}
}
unload();
return false;
}
bool
libxml2_MathView::loadBuffer(const char* buffer)
{
assert(buffer);
if (xmlDoc* doc = libxml2_Model::documentFromBuffer(*getLogger(), buffer, true))
{
if (loadDocument(doc))
{
docOwner = true;
return true;
}
else
{
resetRootElement();
xmlFreeDoc(doc);
return false;
}
}
unload();
return false;
}
bool
libxml2_MathView::loadDocument(xmlDoc* doc)
{
assert(doc);
if (xmlNode* root = xmlDocGetRootElement(doc))
{
const bool res = loadRootElement((xmlElement*) root);
if (res) currentDoc = doc;
return res;
}
unload();
return false;
}
bool
libxml2_MathView::loadRootElement(xmlElement* elem)
{
assert(elem);
if (SmartPtr<libxml2_Builder> builder = smart_cast<libxml2_Builder>(getBuilder()))
{
resetRootElement();
builder->setRootModelElement(elem);
return true;
}
unload();
return false;
}
SmartPtr<Element>
libxml2_MathView::elementOfModelElement(xmlElement* el) const
{
if (SmartPtr<libxml2_Builder> builder = smart_cast<libxml2_Builder>(getBuilder()))
return builder->findElement(el);
else
return 0;
}
xmlElement*
libxml2_MathView::modelElementOfElement(const SmartPtr<Element>& elem) const
{
if (SmartPtr<libxml2_Builder> builder = smart_cast<libxml2_Builder>(getBuilder()))
return (xmlElement*) builder->findSelfOrAncestorModelElement(elem);
else
return 0;
}
bool
libxml2_MathView::notifyStructureChanged(xmlElement* el) const
{
if (SmartPtr<libxml2_Builder> builder = smart_cast<libxml2_Builder>(getBuilder()))
return builder->notifyStructureChanged(el);
else
return false;
}
bool
libxml2_MathView::notifyAttributeChanged(xmlElement* el, const xmlChar* name) const
{
if (SmartPtr<libxml2_Builder> builder = smart_cast<libxml2_Builder>(getBuilder()))
return builder->notifyAttributeChanged(el, name);
else
return false;
}
bool
libxml2_MathView::loadConfiguration(const SmartPtr<AbstractLogger>& logger,
const SmartPtr<Configuration>& configuration, const String& path)
{ return libxml2_Setup::loadConfiguration(*logger, *configuration, path); }
bool
libxml2_MathView::loadOperatorDictionary(const SmartPtr<AbstractLogger>& logger,
const SmartPtr<MathMLOperatorDictionary>& dictionary, const String& path)
{ return libxml2_Setup::loadOperatorDictionary(*logger, *dictionary, path); }
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