vdocument.cpp

/* This file is part of the KDE project
   Copyright (C) 2001, 2002, 2003 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 "vdocument.h"
#include "vselection.h"
#include "vvisitor.h"
#include "vlayer.h"
#include "vstroke.h"
#include "vdashpattern.h"
#include "vpainter.h"
 
#include <KoStore.h>
#include <KoPageLayout.h>
#include <KoXmlWriter.h>
 
#include <kdebug.h>
 
VDocument::VDocument()
    : VObject( 0L ),
      m_width(0.), m_height(0.),
      m_selectionMode( VDocument::ActiveLayer ),
      m_unit( KoUnit::U_MM )
{
    m_selection = new VSelection( this );
 
    // create a layer. we need at least one:
    m_layers.setAutoDelete( true );
    m_layers.append( new VLayer( this ) );
    m_activeLayer = m_layers.getLast();
    m_activeLayer->setSelected( true );
 
    m_saveAsPath = true;
}
 
VDocument::VDocument( const VDocument& document )
    : VObject( document ), m_width(0), m_height(0)
{
    m_selection = new VSelection( this );
// TODO
}
 
VDocument::~VDocument()
{
    delete( m_selection );
}
 
void
VDocument::drawPage( VPainter *p, const KoPageLayout &pl, bool showPageMargins ) const
{
    p->setPen( TQt::black );
    p->setBrush( TQt::white );
    p->drawRect( 0, 0, m_width, m_height );
 
    p->setPen( TQt::NoPen );
    p->setBrush( TQt::black );
    p->drawRect( m_width, - 2, 2, m_height );
    p->drawRect( 0, - 2, m_width, 2 );
    //p->drawRect( 0, m_height - 1, m_width, 1 );
    // Draw Grid
    if( m_gridData.isShow )
    {
        VStroke s( 0, 1 );
        s.setColor( m_gridData.color );
        double dx = m_gridData.freq.width();
        double dy = m_gridData.freq.height();
        p->setPen( s );
        p->setBrush( TQt::NoBrush );
        KoPoint p0( dx, dy );
        while( p0.x() < m_width )
        {
            p->newPath();
            p->moveTo( KoPoint( p0.x(), 0 ) );
            p->lineTo( KoPoint( p0.x(), m_height ) );
            p->strokePath();
 
            p0.rx() += dx;
        }
        while( p0.y() < m_height )
        {
            p->newPath();
            p->moveTo( KoPoint( 0, p0.y() ) );
            p->lineTo( KoPoint( m_width, p0.y() ) );
            p->strokePath();
 
            p0.ry() += dy;
        }
    }
    // Draw page margins
    if( showPageMargins )
    {
        int ml = int( pl.ptLeft );
        int mt = int( pl.ptTop );
        int mr = int( pl.ptRight );
        int mb = int( pl.ptBottom );
 
        VStroke s( 0, 1 );
        s.setColor( TQt::blue );
        TQValueList<float> dashes;
        s.dashPattern().setArray( dashes << 5 << 5 );
        p->setPen( s );
        p->setBrush( TQt::NoBrush );
        p->drawRect(ml, mt, m_width-ml-mr, m_height-mt-mb);
    }
}
 
void
VDocument::draw( VPainter *painter, const KoRect* rect ) const
{
    TQPtrListIterator<VLayer> itr = m_layers;
 
    for ( ; itr.current(); ++itr )
    {
        itr.current()->draw( painter, rect );
    }
}
 
void
VDocument::insertLayer( VLayer* layer )
{
//  if ( pos == -1 || !m_layers.insert( layer, pos ))
        m_layers.append( layer );
    m_activeLayer = layer;
} // VDocument::insertLayer
 
void
VDocument::removeLayer( VLayer* layer )
{
    m_layers.remove( layer );
    if ( m_layers.count() == 0 )
        m_layers.append( new VLayer( this ) );
    m_activeLayer = m_layers.getLast();
} // VDocument::removeLayer
 
bool VDocument::canRaiseLayer( VLayer* layer )
{
    int pos = m_layers.find( layer );
    return (pos != int( m_layers.count() ) - 1 && pos >= 0 );
}
 
bool VDocument::canLowerLayer( VLayer* layer )
{
    int pos = m_layers.find( layer );
    return (pos>0);
}
 
void
VDocument::raiseLayer( VLayer* layer )
{
    int pos = m_layers.find( layer );
    if( pos != int( m_layers.count() ) - 1 && pos >= 0 )
    {
        VLayer* layer = m_layers.take( pos );
        m_layers.insert( pos + 1, layer );
    }
} // VDocument::raiseLayer
 
void
VDocument::lowerLayer( VLayer* layer )
{
    int pos = m_layers.find( layer );
    if ( pos > 0 )
    {
        VLayer* layer = m_layers.take( pos );
        m_layers.insert( pos - 1, layer );
    }
} // VDocument::lowerLayer
 
int
VDocument::layerPos( VLayer* layer )
{
    return m_layers.find( layer );
} // VDocument::layerPos
 
void
VDocument::setActiveLayer( VLayer* layer )
{
    if ( m_layers.find( layer ) != -1 )
        m_activeLayer = layer;
} // VDocument::setActiveLayer
 
void
VDocument::append( VObject* object )
{
    m_activeLayer->append( object );
}
 
TQDomDocument
VDocument::saveXML() const
{
    TQDomDocument doc;
    TQDomElement me = doc.createElement( "DOC" );
    doc.appendChild( me );
    save( me );
    return doc;
}
 
void
VDocument::saveOasis( KoStore *store, KoXmlWriter *docWriter, KoGenStyles &mainStyles ) const
{
    docWriter->startElement( "draw:page" );
    docWriter->addAttribute( "draw:name", name());
    docWriter->addAttribute( "draw:id", "page1");
    docWriter->addAttribute( "draw:master-page-name", "Default");
 
    // save objects:
    VLayerListIterator itr( m_layers );
 
    int index = 0;
    for ( ; itr.current(); ++itr )
        itr.current()->saveOasis( store, docWriter, mainStyles, ++index );
 
    docWriter->endElement(); // draw:page
}
 
void
VDocument::save( TQDomElement& me ) const
{
    me.setAttribute( "mime", "application/x-karbon" ),
    me.setAttribute( "version", "0.1" );
    me.setAttribute( "editor", "Karbon14" );
    me.setAttribute( "syntaxVersion", "0.1" );
    if( m_width > 0. )
        me.setAttribute( "width", m_width );
    if( m_height > 0. )
        me.setAttribute( "height", m_height );
    me.setAttribute( "unit", KoUnit::unitName( m_unit ) );
 
    // save objects:
    VLayerListIterator itr( m_layers );
 
    for ( ; itr.current(); ++itr )
        itr.current()->save( me );
}
 
 
VDocument*
VDocument::clone() const
{
    return new VDocument( *this );
}
 
void
VDocument::load( const TQDomElement& doc )
{
    loadXML( doc );
}
 
bool
VDocument::loadXML( const TQDomElement& doc )
{
    if( doc.attribute( "mime" ) != "application/x-karbon" ||
        doc.attribute( "syntaxVersion" ) != "0.1" )
    {
        return false;
    }
 
    m_layers.clear();
 
    m_width  = doc.attribute( "width", "800.0" ).toDouble();
    m_height = doc.attribute( "height", "550.0" ).toDouble();
 
    m_unit = KoUnit::unit( doc.attribute( "unit", KoUnit::unitName( m_unit ) ) );
 
    loadDocumentContent( doc );
    return true;
}
 
void
VDocument::loadDocumentContent( const TQDomElement& doc )
{
    TQDomNodeList list = doc.childNodes();
    for( uint i = 0; i < list.count(); ++i )
    {
        if( list.item( i ).isElement() )
        {
            TQDomElement e = list.item( i ).toElement();
 
            if( e.tagName() == "LAYER" )
            {
                VLayer* layer = new VLayer( this );
                layer->load( e );
                insertLayer( layer );
            }
        }
    }
}
 
bool
VDocument::loadOasis( const TQDomElement &element, KoOasisLoadingContext &context )
{
    return m_layers.current()->loadOasis( element, context );
}
 
void
VDocument::accept( VVisitor& visitor )
{
    visitor.visitVDocument( *this );
}
 
TQString
VDocument::objectName( const VObject *obj ) const
{
    TQMap<const VObject *, TQString>::ConstIterator it = m_objectNames.find( obj );
    return it == m_objectNames.end() ? 0L : it.data();
}