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Diffstat (limited to 'karbon/shapes/vsinus.cpp')
| -rw-r--r-- | karbon/shapes/vsinus.cpp | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/karbon/shapes/vsinus.cpp b/karbon/shapes/vsinus.cpp new file mode 100644 index 000000000..f27cee4b3 --- /dev/null +++ b/karbon/shapes/vsinus.cpp @@ -0,0 +1,206 @@ +/* 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 <tqwmatrix.h> + +#include "vglobal.h" +#include "vsinus.h" +#include "vtransformcmd.h" +#include <tdelocale.h> +#include <KoUnit.h> +#include <tqdom.h> +#include <vdocument.h> + +VSinus::VSinus( VObject* parent, VState state ) + : VPath( parent, state ) +{ +} + +VSinus::VSinus( VObject* parent, + const KoPoint& topLeft, double width, double height, uint periods ) + : VPath( parent ), m_topLeft( topLeft ), m_width( width), m_height( height ), m_periods( periods ) +{ + // We want at least 1 period: + if( m_periods < 1 ) + m_periods = 1; + init(); +} + +void +VSinus::init() +{ + KoPoint p1; + KoPoint p2; + KoPoint p3( 0.0, 0.0 ); + moveTo( p3 ); + + for ( uint i = 0; i < m_periods; ++i ) + { + p1.setX( i + 1.0/24.0 ); + p1.setY( ( 2.0 * VGlobal::sqrt2 - 1.0 ) * VGlobal::one_7 ); + p2.setX( i + 1.0/12.0 ); + p2.setY( ( 4.0 * VGlobal::sqrt2 - 2.0 ) * VGlobal::one_7 ); + p3.setX( i + 1.0/8.0 ); + p3.setY( VGlobal::sqrt2 * 0.5 ); + curveTo( p1, p2, p3 ); + + p1.setX( i + 1.0/6.0 ); + p1.setY( ( 3.0 * VGlobal::sqrt2 + 2.0 ) * VGlobal::one_7 ); + p2.setX( i + 5.0/24.0 ); + p2.setY( 1.0 ); + p3.setX( i + 1.0/4.0 ); + p3.setY( 1.0 ); + curveTo( p1, p2, p3 ); + + p1.setX( i + 7.0/24.0 ); + p1.setY( 1.0 ); + p2.setX( i + 1.0/3.0 ); + p2.setY( ( 3.0 * VGlobal::sqrt2 + 2.0 ) * VGlobal::one_7 ); + p3.setX( i + 3.0/8.0 ); + p3.setY( VGlobal::sqrt2 * 0.5 ); + curveTo( p1, p2, p3 ); + + p1.setX( i + 5.0/12.0 ); + p1.setY( ( 4.0 * VGlobal::sqrt2 - 2.0 ) * VGlobal::one_7 ); + p2.setX( i + 11.0/24.0 ); + p2.setY( ( 2.0 * VGlobal::sqrt2 - 1.0 ) * VGlobal::one_7 ); + p3.setX( i + 1.0/2.0 ); + p3.setY( 0.0 ); + curveTo( p1, p2, p3 ); + + p1.setX( i + 13.0/24.0 ); + p1.setY( -( 2.0 * VGlobal::sqrt2 - 1.0 ) * VGlobal::one_7 ); + p2.setX( i + 7.0/12.0 ); + p2.setY( -( 4.0 * VGlobal::sqrt2 - 2.0 ) * VGlobal::one_7 ); + p3.setX( i + 5.0/8.0 ); + p3.setY( -VGlobal::sqrt2 * 0.5 ); + curveTo( p1, p2, p3 ); + + p1.setX( i + 2.0/3.0 ); + p1.setY( -( 3.0 * VGlobal::sqrt2 + 2.0 ) * VGlobal::one_7 ); + p2.setX( i + 17.0/24.0 ); + p2.setY( -1.0 ); + p3.setX( i + 3.0/4.0 ); + p3.setY( -1.0 ); + curveTo( p1, p2, p3 ); + + p1.setX( i + 19.0/24.0 ); + p1.setY( -1.0 ); + p2.setX( i + 5.0/6.0 ); + p2.setY( -( 3.0 * VGlobal::sqrt2 + 2.0 ) * VGlobal::one_7 ); + p3.setX( i + 7.0/8.0 ); + p3.setY( -VGlobal::sqrt2 * 0.5 ); + curveTo( p1, p2, p3 ); + + p1.setX( i + 11.0/12.0 ); + p1.setY( -( 4.0 * VGlobal::sqrt2 - 2.0 ) * VGlobal::one_7 ); + p2.setX( i + 23.0/24.0 ); + p2.setY( -( 2.0 * VGlobal::sqrt2 - 1.0 ) * VGlobal::one_7 ); + p3.setX( i + 1.0 ); + p3.setY( 0.0 ); + curveTo( p1, p2, p3 ); + } + + // Translate and scale: + TQWMatrix m; + m.translate( m_topLeft.x(), m_topLeft.y() - m_height * 0.5 ); + m.scale( m_width / m_periods, m_height * 0.5 ); + + // only tranform the path data + VTransformCmd cmd( 0L, m ); + cmd.VVisitor::visitVPath( *this ); + + m_matrix.reset(); +} + +TQString +VSinus::name() const +{ + TQString result = VObject::name(); + return !result.isEmpty() ? result : i18n( "Sinus" ); +} + +void +VSinus::save( TQDomElement& element ) const +{ + VDocument *doc = document(); + if( doc && doc->saveAsPath() ) + { + VPath::save( element ); + return; + } + + if( state() != deleted ) + { + TQDomElement me = element.ownerDocument().createElement( "SINUS" ); + element.appendChild( me ); + + // save fill/stroke untransformed + VPath path( *this ); + VTransformCmd cmd( 0L, m_matrix.invert() ); + cmd.visit( path ); + path.VObject::save( me ); + //VObject::save( me ); + + me.setAttribute( "x", m_topLeft.x() ); + me.setAttribute( "y", m_topLeft.y() ); + + me.setAttribute( "width", m_width ); + me.setAttribute( "height", m_height ); + + me.setAttribute( "periods", m_periods ); + + TQString transform = buildSvgTransform(); + if( !transform.isEmpty() ) + me.setAttribute( "transform", transform ); + } +} + +void +VSinus::load( const TQDomElement& element ) +{ + setState( normal ); + + TQDomNodeList list = element.childNodes(); + for( uint i = 0; i < list.count(); ++i ) + if( list.item( i ).isElement() ) + VObject::load( list.item( i ).toElement() ); + + m_width = KoUnit::parseValue( element.attribute( "width" ), 10.0 ); + m_height = KoUnit::parseValue( element.attribute( "height" ), 10.0 ); + + m_topLeft.setX( KoUnit::parseValue( element.attribute( "x" ) ) ); + m_topLeft.setY( KoUnit::parseValue( element.attribute( "y" ) ) ); + + m_periods = element.attribute( "periods" ).toUInt(); + + init(); + + TQString trafo = element.attribute( "transform" ); + if( !trafo.isEmpty() ) + transform( trafo ); +} + +VPath* +VSinus::clone() const +{ + return new VSinus( *this ); +} + |