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155 lines
4.0 KiB
155 lines
4.0 KiB
/* This file is part of the KDE project
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Copyright (C) 2001 Andrea Rizzi <rizzi@kde.org>
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Ulrich Kuettler <ulrich.kuettler@mailbox.tu-dresden.de>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <iostream>
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#include <tqpopupmenu.h>
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#include <tqbuffer.h>
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#include <tqcolor.h>
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#include <tqimage.h>
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#include <tqpainter.h>
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#include <tqpixmap.h>
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#include <kcommand.h>
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#include "contextstyle.h"
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#include "formulacursor.h"
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#include "formulaelement.h"
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#include "kformuladocument.h"
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#include "kformulamimesource.h"
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KFORMULA_NAMESPACE_BEGIN
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using namespace std;
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MimeSource::MimeSource(Document* doc, const TQDomDocument& formula)
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: formulaDocument( doc ), document(formula)
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{
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// The query for text/plain comes very often. So make sure
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// it's fast.
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rootElement = new FormulaElement(this);
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FormulaCursor cursor(rootElement);
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TQPtrList<BasicElement> list;
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list.setAutoDelete(true);
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if ( cursor.buildElementsFromDom( document.documentElement(), list ) ) {
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cursor.insert(list);
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latexString = rootElement->toLatex().utf8();
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if (latexString.size() > 0) {
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latexString.truncate(latexString.size()-1);
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}
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}
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}
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MimeSource::~MimeSource()
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{
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delete rootElement;
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}
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const char * MimeSource::selectionMimeType()
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{
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return "application/x-kformula";
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}
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const char* MimeSource::format( int n ) const
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{
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switch (n) {
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case 0:
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return selectionMimeType();
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case 1:
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return "image/ppm";
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case 2:
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return "text/plain";
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case 3:
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return "text/x-tex";
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}
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return NULL;
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}
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bool MimeSource::provides( const char * format) const
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{
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//This is not completed
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if(TQString(format)==selectionMimeType())
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return true;
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else if(TQString(format)=="image/ppm")
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return true;
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else if(TQString(format)=="text/plain")
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return true;
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else if(TQString(format)=="text/x-tex")
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return true;
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else
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return false;
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}
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TQByteArray MimeSource::encodedData ( const char *format ) const
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{
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TQString fmt=format; //case sensitive?
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if ((fmt=="text/plain") || (fmt=="text/x-tex"))
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return latexString;
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if (fmt==selectionMimeType()) {
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TQByteArray d=document.toCString();
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d.truncate(d.size()-1);
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return d;
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}
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if (fmt=="image/ppm") {
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//cerr << "asking image" << endl;
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ContextStyle& context = formulaDocument->getContextStyle( false );
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//context.setResolution(5, 5);
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rootElement->calcSizes(context);
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TQRect rect(rootElement->getX(), rootElement->getY(),
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rootElement->getWidth(), rootElement->getHeight());
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TQPixmap pm( context.layoutUnitToPixelX( rootElement->getWidth() ),
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context.layoutUnitToPixelY( rootElement->getHeight() ) );
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pm.fill();
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TQPainter paint(&pm);
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rootElement->draw(paint, rect, context);
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paint.end();
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TQByteArray d;
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TQBuffer buff(d);
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buff.open(IO_WriteOnly);
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TQImageIO io(&buff,"PPM");
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TQImage ima=pm.convertToImage();
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ima.detach();
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io.setImage(ima);
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if(!io.write())
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return TQByteArray();
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buff.close();
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return d;
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}
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return TQByteArray();
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}
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const SymbolTable& MimeSource::getSymbolTable() const
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{
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return formulaDocument->getContextStyle( false ).symbolTable();
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}
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KFORMULA_NAMESPACE_END
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