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koffice/lib/kofficecore/KoPictureWmf.cpp

138 lines
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/* This file is part of the KDE project
Copyright (c) 2001 Simon Hausmann <hausmann@kde.org>
Copyright (c) 2001 David Faure <faure@kde.org>
Copyright (C) 2002 Nicolas GOUTTE <goutte@kde.org>
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 <tqbuffer.h>
#include <tqpainter.h>
#include <tqpicture.h>
#include <tqpixmap.h>
#include <kdebug.h>
#include <kdeversion.h>
#if ! KDE_IS_VERSION( 3,1,90 )
#include <kdebugclasses.h>
#endif
#include <kowmfpaint.h>
#include "KoPictureKey.h"
#include "KoPictureBase.h"
#include "KoPictureWmf.h"
KoPictureWmf::KoPictureWmf(void) : m_clipart(KoPictureType::formatVersionTQPicture)
{
}
KoPictureWmf::~KoPictureWmf(void)
{
}
KoPictureBase* KoPictureWmf::newCopy(void) const
{
return new KoPictureWmf(*this);
}
KoPictureType::Type KoPictureWmf::getType(void) const
{
return KoPictureType::TypeWmf;
}
bool KoPictureWmf::isNull(void) const
{
return m_clipart.isNull();
}
void KoPictureWmf::drawTQPicture(TQPicture& clipart, TQPainter& painter,
int x, int y, int width, int height, int sx, int sy, int sw, int sh)
{
kdDebug(30003) << "Drawing KoPictureWmf " << this << endl;
kdDebug(30003) << " x=" << x << " y=" << y << " width=" << width << " height=" << height << endl;
kdDebug(30003) << " sx=" << sx << " sy=" << sy << " sw=" << sw << " sh=" << sh << endl;
painter.save();
// Thanks to Harri, TQt3 makes it much easier than TQt2 ;)
TQRect br = clipart.boundingRect();
kdDebug(30003) << " Bounding rect. " << br << endl;
painter.translate(x,y); // Translating must be done before scaling!
if ( br.width() && br.height() )
painter.scale(double(width)/double(br.width()),double(height)/double(br.height()));
else
kdWarning(30003) << "Null bounding rectangle: " << br.width() << " x " << br.height() << endl;
painter.drawPicture(0,0,clipart);
painter.restore();
}
void KoPictureWmf::draw(TQPainter& painter, int x, int y, int width, int height, int sx, int sy, int sw, int sh, bool /*fastMode*/)
{
drawTQPicture(m_clipart, painter, x, y, width, height, sx, sy, sw, sh);
}
bool KoPictureWmf::loadData(const TQByteArray& array, const TQString& /* extension */)
{
// Second, create the original clipart
kdDebug(30003) << "Trying to load clipart... (Size:" << array.size() << ")" << endl;
m_rawData=array;
KoWmfPaint wmf;
if (!wmf.load(array))
{
kdWarning(30003) << "Loading WMF has failed! (KoPictureWmf::load)" << endl;
return false;
}
m_originalSize = wmf.boundingRect().size();
// draw wmf file with relative coordinate
wmf.play(*TQT_TQPAINTDEVICE(&m_clipart), true);
return true;
}
bool KoPictureWmf::save(TQIODevice* io) const
{
// We save the raw data, as the SVG supposrt in TQPicture is poor
TQ_ULONG size=io->writeBlock(m_rawData); // WARNING: writeBlock returns TQ_LONG but size() TQ_ULONG!
return (size==m_rawData.size());
}
TQSize KoPictureWmf::getOriginalSize(void) const
{
return m_originalSize;
}
TQPixmap KoPictureWmf::generatePixmap(const TQSize& size, bool /*smoothScale*/)
{
// Not sure if it works, but it worked for KoPictureFilePreviewWidget::setClipart
TQPixmap pixmap(size);
TQPainter p;
p.begin( &pixmap );
p.setBackgroundColor( TQt::white );
pixmap.fill( TQt::white );
if ( m_originalSize.width() && m_originalSize.height() )
p.scale( (double)pixmap.width() / (double)m_originalSize.width(), (double)pixmap.height() / (double)m_originalSize.height() );
p.drawPicture( m_clipart );
p.end();
return pixmap;
}
TQString KoPictureWmf::getMimeType(const TQString& /* extension */) const
{
return "image/x-wmf";
}