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/* This file is part of the KDE project
Copyright (C) 2001 Andrea Rizzi <rizzi@kde.org>
Ulrich Kuettler <ulrich.kuettler@mailbox.tu-dresden.de>
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
along 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 <iostream>
#include <tqpopupmenu.h>
#include <tqbuffer.h>
#include <tqcolor.h>
#include <tqimage.h>
#include <tqpainter.h>
#include <tqpixmap.h>
#include <kcommand.h>
#include "contextstyle.h"
#include "formulacursor.h"
#include "formulaelement.h"
#include "kformuladocument.h"
#include "kformulamimesource.h"
KFORMULA_NAMESPACE_BEGIN
using namespace std;
MimeSource::MimeSource(Document* doc, const TQDomDocument& formula)
: formulaDocument( doc ), document(formula)
{
// The query for text/plain comes very often. So make sure
// it's fast.
rootElement = new FormulaElement(this);
FormulaCursor cursor(rootElement);
TQPtrList<BasicElement> list;
list.setAutoDelete(true);
if ( cursor.buildElementsFromDom( document.documentElement(), list ) ) {
cursor.insert(list);
latexString = rootElement->toLatex().utf8();
if (latexString.size() > 0) {
latexString.truncate(latexString.size()-1);
}
}
}
MimeSource::~MimeSource()
{
delete rootElement;
}
const char * MimeSource::selectionMimeType()
{
return "application/x-kformula";
}
const char* MimeSource::format( int n ) const
{
switch (n) {
case 0:
return selectionMimeType();
case 1:
return "image/ppm";
case 2:
return "text/plain";
case 3:
return "text/x-tex";
}
return NULL;
}
bool MimeSource::provides( const char * format) const
{
//This is not completed
if(TQString(format)==selectionMimeType())
return true;
else if(TQString(format)=="image/ppm")
return true;
else if(TQString(format)=="text/plain")
return true;
else if(TQString(format)=="text/x-tex")
return true;
else
return false;
}
TQByteArray MimeSource::encodedData ( const char *format ) const
{
TQString fmt=format; //case sensitive?
if ((fmt=="text/plain") || (fmt=="text/x-tex"))
return latexString;
if (fmt==selectionMimeType()) {
TQByteArray d=document.toCString();
d.truncate(d.size()-1);
return d;
}
if (fmt=="image/ppm") {
//cerr << "asking image" << endl;
ContextStyle& context = formulaDocument->getContextStyle( false );
//context.setResolution(5, 5);
rootElement->calcSizes(context);
TQRect rect(rootElement->getX(), rootElement->getY(),
rootElement->getWidth(), rootElement->getHeight());
TQPixmap pm( context.layoutUnitToPixelX( rootElement->getWidth() ),
context.layoutUnitToPixelY( rootElement->getHeight() ) );
pm.fill();
TQPainter paint(&pm);
rootElement->draw(paint, rect, context);
paint.end();
TQByteArray d;
TQBuffer buff(d);
buff.open(IO_WriteOnly);
TQImageIO io(&buff,"PPM");
TQImage ima=pm.convertToImage();
ima.detach();
io.setImage(ima);
if(!io.write())
return TQByteArray();
buff.close();
return d;
}
return TQByteArray();
}
const SymbolTable& MimeSource::getSymbolTable() const
{
return formulaDocument->getContextStyle( false ).symbolTable();
}
KFORMULA_NAMESPACE_END
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