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Diffstat (limited to 'karbon/plugins/shadoweffect/vshadowdecorator.cc')
| -rw-r--r-- | karbon/plugins/shadoweffect/vshadowdecorator.cc | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/karbon/plugins/shadoweffect/vshadowdecorator.cc b/karbon/plugins/shadoweffect/vshadowdecorator.cc new file mode 100644 index 00000000..238673ba --- /dev/null +++ b/karbon/plugins/shadoweffect/vshadowdecorator.cc @@ -0,0 +1,150 @@ +/* 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 ); + } +} |