vpattern.cpp

/* This file is part of the KDE project
   Copyright (C) 2002, The Karbon Developers
 
   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 <tqdom.h>
 
#include "vpattern.h"
#include <tqpixmap.h>
#define THUMB_SIZE 30
 
VPattern::VPattern()
{
    m_valid = false;
    validThumb = false;
}
 
VPattern::VPattern( const TQString &tilename )
{
    load( tilename );
}
 
void
VPattern::load( const TQString &tilename )
{
    m_tilename = tilename;
    bool ok = m_image.load( tilename );
 
    if( !ok )
    {
        m_valid = false;
        return;
    }
 
    m_image = m_image.convertDepth( 32 );
    m_pixmap.convertFromImage(m_image, TQPixmap::AutoColor);
    if( m_image.width() > THUMB_SIZE || m_image.height() > THUMB_SIZE )
    {
        int xsize = THUMB_SIZE;
        int ysize = THUMB_SIZE;
        int picW  = m_image.width();
        int picH  = m_image.height();
        if( picW > picH )
        {
            float yFactor = (float)((float)(float)picH/(float)picW);
            ysize = (int)(yFactor * (float)THUMB_SIZE);
            if(ysize > 30) ysize = 30;
        }
        else if( picW < picH )
        {
            float xFactor = (float)((float)picW/(float)picH);
            xsize = (int)(xFactor * (float)THUMB_SIZE);
            if(xsize > 30) xsize = 30;
        }
 
        TQImage thumbImg = m_image.smoothScale( xsize, ysize );
        m_pixmapThumb.convertFromImage( thumbImg );
        validThumb = true;
    }
    m_valid = !m_image.isNull();
}
 
unsigned char *
VPattern::pixels()
{
    return m_image.bits();
}
 
unsigned int
VPattern::tileWidth() const
{
    return m_image.width();
}
 
unsigned int
VPattern::tileHeight() const
{
    return m_image.height();
}
 
void
VPattern::save( TQDomElement& element ) const
{
    TQDomElement me = element.ownerDocument().createElement( "PATTERN" );
 
    me.setAttribute( "originX", m_origin.x() );
    me.setAttribute( "originY", m_origin.y() );
    me.setAttribute( "vectorX", m_vector.x() );
    me.setAttribute( "vectorY", m_vector.y() );
 
    me.setAttribute( "tilename", m_tilename );
 
    element.appendChild( me );
}
 
void
VPattern::load( const TQDomElement& element )
{
    m_origin.setX( element.attribute( "originX", "0.0" ).toDouble() );
    m_origin.setY( element.attribute( "originY", "0.0" ).toDouble() );
    m_vector.setX( element.attribute( "vectorX", "0.0" ).toDouble() );
    m_vector.setY( element.attribute( "vectorY", "0.0" ).toDouble() );
 
    m_tilename = element.attribute( "tilename" );
    load( m_tilename );
}
 
void
VPattern::transform( const TQWMatrix &m )
{
    m_origin = m_origin.transform( m );
    m_vector = m_vector.transform( m );
}
 
TQPixmap& VPattern::pixmap() const
{
    return (TQPixmap&)m_pixmap;
}
 
TQPixmap& VPattern::thumbPixmap() const
{
    return (TQPixmap&)m_pixmapThumb;
}