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/* 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 "vshadowdecorator.h"
#include <core/vfill.h>
#include <core/vstroke.h>
#include <render/vpainter.h>
#include <core/vvisitor.h>
#include <core/vdocument.h>
#include <core/vselection.h>
#include <commands/vtransformcmd.h>
VShadowDecorator::VShadowDecorator( VObject *object, VObject* parent, int distance, int angle, float opacity )
: VObject( parent ), m_object( object ), m_distance( distance ), m_angle( angle ), m_opacity( opacity )
{
}
VShadowDecorator::VShadowDecorator( const VShadowDecorator& other ) : VObject( other )
{
m_object = other.m_object->clone();
m_opacity = other.m_opacity;
m_distance = other.m_distance;
m_angle = other.m_angle;
}
VShadowDecorator::~VShadowDecorator()
{
delete m_object;
}
void
VShadowDecorator::draw( VPainter* painter, const KoRect* rect ) const
{
if( state() == deleted ||
state() == hidden ||
state() == hidden_locked )
{
return;
}
// make sure swallowed object has the same state
m_object->setState( state() );
if( state() != VObject::edit )
{
int shadowDx = int( m_distance * cos( m_angle / 360. * 6.2832 ) );
int shadowDy = int( m_distance * sin( m_angle / 360. * 6.2832 ) );
VFill *fill = new VFill( *m_object->fill() );
VStroke *stroke = new VStroke( *m_object->stroke() );
VColor black( Qt::black );
black.setOpacity( m_opacity );
if( m_object->fill()->type() != VFill::none )
m_object->fill()->setColor( black );
m_object->stroke()->setColor( black );
QWMatrix mat = painter->worldMatrix();
painter->setWorldMatrix( mat.translate( shadowDx * painter->zoomFactor(), -shadowDy * painter->zoomFactor()) );
m_object->draw( painter, rect );
m_object->setFill( *fill );
m_object->setStroke( *stroke );
painter->setWorldMatrix( mat.translate( -shadowDx* painter->zoomFactor() , shadowDy * painter->zoomFactor() ) );
}
m_object->draw( painter, rect );
}
VObject *
VShadowDecorator::clone() const
{
return new VShadowDecorator( *this );
}
void
VShadowDecorator::accept( VVisitor& visitor )
{
m_object->accept( visitor );
visitor.visitVObject( *this );
// do not allow swallowed object to be part of the selection
document()->selection()->take( *m_object );
}
void
VShadowDecorator::setShadow( int distance, int angle, float opacity )
{
m_distance = distance;
m_angle = angle;
m_opacity = opacity;
}
void
VShadowDecorator::setStroke( const VStroke& stroke )
{
m_object->setStroke( stroke );
}
void
VShadowDecorator::setFill( const VFill& fill )
{
m_object->setFill( fill );
}
void
VShadowDecorator::setState( const VState state )
{
m_state = state;
m_object->setState( state );
}
void
VShadowDecorator::save( QDomElement& element ) const
{
if( m_state != VObject::deleted )
{
// save shadow as new object
int shadowDx = int( m_distance * cos( m_angle / 360. * 6.2832 ) );
int shadowDy = int( m_distance * sin( m_angle / 360. * 6.2832 ) );
VObject *shadow = m_object->clone();
VColor black( Qt::black );
black.setOpacity( m_opacity );
if( shadow->fill()->type() != VFill::none )
shadow->fill()->setColor( black );
shadow->stroke()->setColor( black );
QWMatrix mat;
mat.translate( shadowDx, -shadowDy );
VTransformCmd trafo( 0L, mat );
trafo.visit( *shadow );
shadow->save( element );
delete shadow;
// save swallowed object
m_object->save( element );
}
}
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