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tdegraphics/kpovmodeler/pmcylinder.cpp

408 lines
11 KiB

/*
**************************************************************************
description
--------------------
copyright : (C) 2000-2001 by Leonardo Skorianez
email : lsk@if.ufrj.br
copyright : (C) 2002 by Andreas Zehender
email : zehender@kde.org
**************************************************************************
**************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
**************************************************************************/
#include "pmcylinder.h"
#include "pmxmlhelper.h"
#include "pmboxedit.h"
#include "pmmemento.h"
#include "pm3dcontrolpoint.h"
#include "pmdefaults.h"
#include <klocale.h>
#include "pmdistancecontrolpoint.h"
#include "pmcylinderedit.h"
const double defaultCylRadius = 0.5;
const double defaultHalfCylSize = 0.5;
const PMVector defaultEnd1 = PMVector ( 0, defaultHalfCylSize, 0 );
const PMVector defaultEnd2 = PMVector ( 0, -defaultHalfCylSize, 0 );
const bool defaultOpen = false;
/** default cylinder structure */
PMViewStructure* PMCylinder::s_pDefaultViewStructure = 0;
int PMCylinder::s_numSteps = c_defaultCylinderSteps;
int PMCylinder::s_parameterKey = 0;
PMDefinePropertyClass( PMCylinder, PMCylinderProperty );
PMMetaObject* PMCylinder::s_pMetaObject = 0;
PMObject* createNewCylinder( PMPart* part )
{
return new PMCylinder( part );
}
PMCylinder::PMCylinder( PMPart* part )
: Base( part )
{
m_end1 = defaultEnd1;
m_end2 = defaultEnd2;
m_radius = defaultCylRadius;
m_open = defaultOpen;
}
PMCylinder::PMCylinder( const PMCylinder& c )
: Base( c )
{
m_end1 = c.m_end1;
m_end2 = c.m_end2;
m_radius = c.m_radius;
m_open = c.m_open;
}
PMCylinder::~PMCylinder( )
{
}
QString PMCylinder::description( ) const
{
return i18n( "cylinder" );
}
void PMCylinder::serialize( QDomElement& e, QDomDocument& doc ) const
{
e.setAttribute( "end_a", m_end1.serializeXML( ) );
e.setAttribute( "end_b", m_end2.serializeXML( ) );
e.setAttribute( "radius", m_radius );
e.setAttribute( "open", m_open );
Base::serialize( e, doc );
}
void PMCylinder::readAttributes( const PMXMLHelper& h )
{
m_end1 = h.vectorAttribute( "end_a", defaultEnd1 );
m_end2 = h.vectorAttribute( "end_b", defaultEnd2 );
m_radius = h.doubleAttribute( "radius", defaultCylRadius );
m_open = h.boolAttribute( "open", defaultOpen );
Base::readAttributes( h );
}
PMMetaObject* PMCylinder::metaObject( ) const
{
if( !s_pMetaObject )
{
s_pMetaObject = new PMMetaObject( "Cylinder", Base::metaObject( ),
createNewCylinder );
s_pMetaObject->addProperty(
new PMCylinderProperty( "end1", &PMCylinder::setEnd1, &PMCylinder::end1 ) );
s_pMetaObject->addProperty(
new PMCylinderProperty( "end2", &PMCylinder::setEnd2, &PMCylinder::end2 ) );
s_pMetaObject->addProperty(
new PMCylinderProperty( "radius", &PMCylinder::setRadius, &PMCylinder::radius ) );
s_pMetaObject->addProperty(
new PMCylinderProperty( "open", &PMCylinder::setOpen, &PMCylinder::open ) );
}
return s_pMetaObject;
}
void PMCylinder::setEnd1( const PMVector& p )
{
if( p != m_end1 )
{
if( m_pMemento )
m_pMemento->addData( s_pMetaObject, PMEnd1ID, m_end1 );
m_end1 = p;
m_end1.resize( 3 );
setViewStructureChanged( );
}
}
void PMCylinder::setEnd2( const PMVector& p )
{
if( p != m_end2 )
{
if( m_pMemento )
m_pMemento->addData( s_pMetaObject, PMEnd2ID, m_end2 );
m_end2 = p;
m_end2.resize( 3 );
setViewStructureChanged( );
}
}
void PMCylinder::setRadius( double radius )
{
if( m_radius != radius )
{
if( m_pMemento )
m_pMemento->addData( s_pMetaObject, PMRadiusID, m_radius );
m_radius = radius;
setViewStructureChanged( );
}
}
void PMCylinder::setOpen( bool op )
{
if( op != m_open )
{
if( m_pMemento )
m_pMemento->addData( s_pMetaObject, PMOpenID, m_open );
m_open = op;
}
}
PMDialogEditBase* PMCylinder::editWidget( QWidget* parent ) const
{
return new PMCylinderEdit( parent );
}
void PMCylinder::restoreMemento( PMMemento* s )
{
PMMementoDataIterator it( s );
PMMementoData* data;
for( ; it.current( ); ++it )
{
data = it.current( );
if( data->objectType( ) == s_pMetaObject )
{
switch( data->valueID( ) )
{
case PMEnd1ID:
setEnd1( data->vectorData( ) );
break;
case PMEnd2ID:
setEnd2( data->vectorData( ) );
break;
case PMRadiusID:
setRadius( data->doubleData( ) );
break;
case PMOpenID:
setOpen( data->boolData( ) );
break;
default:
kdError( PMArea ) << "Wrong ID in PMCylinder::restoreMemento\n";
break;
}
}
}
Base::restoreMemento( s );
}
bool PMCylinder::isDefault( )
{
if( ( m_end1 == defaultEnd1 ) && ( m_end2 == defaultEnd2 )
&& ( m_radius == defaultCylRadius ) && ( m_open == defaultOpen )
&& globalDetail( ) )
return true;
return false;
}
void PMCylinder::createViewStructure( )
{
if( !m_pViewStructure )
{
m_pViewStructure = new PMViewStructure( defaultViewStructure ( ) );
m_pViewStructure->points( ).detach( );
}
int steps = (int)( ( (float)s_numSteps / 2 ) * ( displayDetail( ) + 1 ) );
unsigned ptsSize = steps * 2;
unsigned lineSize = steps * 3;
if( ptsSize != m_pViewStructure->points( ).size( ) )
m_pViewStructure->points( ).resize( ptsSize );
createPoints( m_pViewStructure->points( ), m_end1, m_end2, m_radius, steps );
if( ( lineSize ) != m_pViewStructure->lines( ).size( ) )
{
m_pViewStructure->lines( ).detach( );
m_pViewStructure->lines( ).resize( lineSize );
createLines( m_pViewStructure->lines( ), steps );
}
}
PMViewStructure* PMCylinder::defaultViewStructure( ) const
{
if( !s_pDefaultViewStructure || s_pDefaultViewStructure->parameterKey( ) != viewStructureParameterKey( ) )
{
delete s_pDefaultViewStructure;
s_pDefaultViewStructure = 0;
int steps = (int)( ( (float)s_numSteps / 2 ) * ( globalDetailLevel( ) + 1 ) );
s_pDefaultViewStructure = new PMViewStructure( steps * 2, steps * 3 );
createPoints( s_pDefaultViewStructure->points( ), defaultEnd1,
defaultEnd2, defaultCylRadius, steps );
createLines( s_pDefaultViewStructure->lines( ), steps );
}
return s_pDefaultViewStructure;
}
void PMCylinder::createLines( PMLineArray& lines, int steps )
{
int i;
for( i = 0; i < ( steps - 1 ); i++ )
{
lines[i] = PMLine( i, i + 1 );
lines[i + steps] = PMLine( i + steps, i + steps + 1 );
}
lines[steps - 1] = PMLine( steps - 1, 0 );
lines[steps * 2 - 1] = PMLine( steps * 2 - 1, steps );
for( i = 0; i < steps; i++ )
{
lines[i + 2 * steps] = PMLine( i, i + steps );
}
}
void PMCylinder::createPoints( PMPointArray& points, const PMVector& end1,
const PMVector& end2, double radius, int steps )
{
double angle = ( 2.0 * M_PI ) / ( double ) steps;
PMVector pointAt = end2 - end1;
double pl = pointAt.abs( );
if( approxZero( pl ) )
pointAt = PMVector( 0.0, 0.0, 1.0 );
else
pointAt /= pl;
PMMatrix rotation = PMMatrix::rotation( pointAt, angle );
PMVector endPoint = pointAt.orthogonal( );
endPoint *= radius;
int i;
for( i = 0; i < steps; i++ )
{
points[i] = PMPoint( endPoint + end1 );
points[i + steps] = PMPoint( endPoint + end2 );
endPoint = rotation * endPoint;
}
}
void PMCylinder::controlPoints( PMControlPointList & list )
{
PMVector center, angle1, angle2;
center = m_end1 - m_end2;
double pl = center.abs( );
if( approxZero( pl ) )
center = PMVector( 0.0, 1.0, 0.0 );
else
center /= pl;
angle1 = center.orthogonal( );
angle2 = PMVector::cross( center, angle1 );
PM3DControlPoint* pb = new PM3DControlPoint( m_end1, PMEnd1ID, i18n( "End 1" ) );
list.append( pb );
list.append( new PM3DControlPoint( m_end2, PMEnd2ID, i18n( "End 2" ) ) );
list.append( new PMDistanceControlPoint( pb, angle1, m_radius, PMRadiusID, i18n( "Radius (1)" ) ) );
list.append( new PMDistanceControlPoint( pb, angle2, m_radius, PMRadiusID, i18n( "Radius (2)" ) ) );
}
void PMCylinder::controlPointsChanged( PMControlPointList & list )
{
PMControlPoint* p;
bool pointChanged = false;
bool radiusChanged = false;
for( p = list.first( ); p; p = list.next( ) )
{
if( p->changed( ) )
{
switch( p->id( ) )
{
case PMEnd1ID:
setEnd1( ( ( PM3DControlPoint *) p)->point( ) );
pointChanged = true;
break;
case PMEnd2ID:
setEnd2( ( ( PM3DControlPoint *) p)->point( ) );
pointChanged = true;
break;
case PMRadiusID:
setRadius( ( ( PMDistanceControlPoint *) p)->distance( ) );
radiusChanged = true;
break;
default:
kdError( PMArea ) << "Wrong ID in PMCylinder::controlPointsChanged\n";
break;
}
}
}
if( pointChanged )
{
PMVector center, angle1, angle2;
bool firstPoint = true;
center = m_end1 - m_end2;
double pl = center.abs( );
if( approxZero( pl ) )
center = PMVector( 0.0, 1.0, 0.0 );
else
center /= pl;
angle1 = center.orthogonal( );
angle2 = PMVector::cross( center, angle1 );
for( p = list.first( ); p; p = list.next( ) )
if( p->id( ) == PMRadiusID )
{
if( firstPoint )
{
( ( PMDistanceControlPoint *) p)->setDirection( angle1 );
firstPoint = false;
}
else
( ( PMDistanceControlPoint *) p)->setDirection( angle2 );
}
}
if( radiusChanged )
for( p = list.first( ); p; p = list.next( ) )
if( p->id( ) == PMRadiusID )
( ( PMDistanceControlPoint *) p)->setDistance( m_radius );
}
void PMCylinder::setSteps( int s )
{
if( s >= 4 )
{
s_numSteps = s;
if( s_pDefaultViewStructure )
{
delete s_pDefaultViewStructure;
s_pDefaultViewStructure = 0;
}
}
else
kdDebug( PMArea ) << "PMCylinder::setSteps: S must be greater than 3\n";
s_parameterKey++;
}
void PMCylinder::cleanUp( ) const
{
if( s_pDefaultViewStructure )
delete s_pDefaultViewStructure;
s_pDefaultViewStructure = 0;
if( s_pMetaObject )
{
delete s_pMetaObject;
s_pMetaObject = 0;
}
Base::cleanUp( );
}