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tdegraphics/kpovmodeler/pmbicubicpatch.cpp

545 lines
15 KiB

/*
**************************************************************************
description
--------------------
copyright : (C) 2001-2002 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 "pmbicubicpatch.h"
#include "pmxmlhelper.h"
#include "pmbicubicpatchedit.h"
#include "pmmemento.h"
#include "pmviewstructure.h"
#include "pm3dcontrolpoint.h"
#include "pmmath.h"
#include <klocale.h>
const double c_defaultPatchSize = 6.0;
const int c_defaultPatchType = 0;
const int c_defaultPatchUSteps = 3;
const int c_defaultPatchVSteps = 3;
const double c_defaultPatchFlatness = 0;
const PMVector c_defaultUVVector0 = PMVector( 0.0, 0.0 );
const PMVector c_defaultUVVector1 = PMVector( 1.0, 0.0 );
const PMVector c_defaultUVVector2 = PMVector( 1.0, 1.0 );
const PMVector c_defaultUVVector3 = PMVector( 0.0, 1.0 );
PMDefinePropertyClass( PMBicubicPatch, PMBicubicPatchProperty );
class PMPointProperty : public PMPropertyBase
{
public:
PMPointProperty( )
: PMPropertyBase( "controlPoints", PMVariant::Vector )
{
m_index = 0;
}
virtual int dimensions( ) const { return 1; }
virtual void setIndex( int /*dimension*/, int index )
{
if( index < 0 || index > 15 )
kdError( PMArea ) << "Illegal index in PMBicubicPatch::PointProperty::setIndex" << endl;
else
m_index = index;
}
virtual int size( PMObject* /*object*/, int /*dimension*/ ) const
{
return 16;
}
protected:
virtual bool setProtected( PMObject* obj, const PMVariant& v )
{
PMBicubicPatch* p = ( PMBicubicPatch* ) obj;
p->setControlPoint( m_index, v.vectorData( ) );
return true;
}
virtual PMVariant getProtected( const PMObject* obj )
{
const PMBicubicPatch* p = ( const PMBicubicPatch* ) obj;
return PMVariant( p->controlPoint( m_index ) );
}
private:
int m_index;
};
class PMUVVectorProperty : public PMPropertyBase
{
public:
PMUVVectorProperty( )
: PMPropertyBase( "uvVectors", PMVariant::Vector )
{
m_index = 0;
}
virtual int dimensions( ) const { return 1; }
virtual void setIndex( int /*dimension*/, int index )
{
if( index < 0 || index > 3 )
kdError( PMArea ) << "Illegal index in PMBicubicPatch::UVVectorProperty::setIndex" << endl;
else
m_index = index;
}
virtual int size( PMObject* /*object*/, int /*dimension*/ ) const
{
return 3;
}
protected:
virtual bool setProtected( PMObject* obj, const PMVariant& v )
{
PMBicubicPatch* p = ( PMBicubicPatch* ) obj;
p->setUVVector( m_index, v.vectorData( ) );
return true;
}
virtual PMVariant getProtected( const PMObject* obj )
{
const PMBicubicPatch* p = ( const PMBicubicPatch* ) obj;
return PMVariant( p->uvVector( m_index ) );
}
private:
int m_index;
};
PMMetaObject* PMBicubicPatch::s_pMetaObject = 0;
PMObject* createNewBicubicPatch( PMPart* part )
{
return new PMBicubicPatch( part );
}
PMBicubicPatch::PMBicubicPatch( PMPart* part )
: Base( part )
{
int x, z;
double o = -c_defaultPatchSize / 2.0, s = c_defaultPatchSize / 3.0;
m_patchType = c_defaultPatchType;
m_numUSteps = c_defaultPatchUSteps;
m_numVSteps = c_defaultPatchVSteps;
m_flatness = c_defaultPatchFlatness;
for( x = 0; x < 4; x++ )
for( z = 0; z < 4; z++ )
m_point[x+z*4] = PMVector( o + s * x, 0, o + s * z );
m_vsUSteps = 0;
m_vsVSteps = 0;
m_uvEnabled = false;
m_uvVectors[0] = c_defaultUVVector0;
m_uvVectors[1] = c_defaultUVVector1;
m_uvVectors[2] = c_defaultUVVector2;
m_uvVectors[3] = c_defaultUVVector3;
}
PMBicubicPatch::PMBicubicPatch( const PMBicubicPatch& p )
: Base( p )
{
int i;
m_patchType = p.m_patchType;
m_numUSteps = p.m_numUSteps;
m_numVSteps = p.m_numVSteps;
m_flatness = p.m_flatness;
for( i = 0; i < 16; i++ )
m_point[i] = p.m_point[i];
m_vsUSteps = 0;
m_vsVSteps = 0;
m_uvEnabled = p.m_uvEnabled;
for( i = 0; i < 4; ++i )
m_uvVectors[i] = p.m_uvVectors[i];
}
PMBicubicPatch::~PMBicubicPatch( )
{
}
TQString PMBicubicPatch::description( ) const
{
return i18n( "bicubic patch" );
}
void PMBicubicPatch::serialize( TQDomElement& e, TQDomDocument& doc ) const
{
int i;
e.setAttribute( "type", m_patchType );
e.setAttribute( "flatness", m_flatness );
e.setAttribute( "uSteps", m_numUSteps );
e.setAttribute( "vSteps", m_numVSteps );
e.setAttribute( "uvEnabled", m_uvEnabled );
for( i = 0; i < 16; i++ )
e.setAttribute( TQString( "cp%1" ).tqarg( i ), m_point[i].serializeXML( ) );
for( i = 0; i < 4; ++i )
e.setAttribute( TQString( "uv%1" ).tqarg( i ), m_uvVectors[i].serializeXML( ) );
Base::serialize( e, doc );
}
void PMBicubicPatch::readAttributes( const PMXMLHelper& h )
{
int u, v;
double o = -c_defaultPatchSize / 2.0, s = c_defaultPatchSize / 3.0;
m_patchType = h.intAttribute( "type", c_defaultPatchType );
m_flatness = h.doubleAttribute( "flatness", c_defaultPatchFlatness );
m_numUSteps = h.intAttribute( "uSteps", c_defaultPatchUSteps );
m_numVSteps = h.intAttribute( "vSteps", c_defaultPatchVSteps );
m_uvEnabled = h.boolAttribute( "uvEnabled", m_uvEnabled );
for( v = 0; v < 4; v++ )
for( u = 0; u < 4; u++ )
m_point[u+v*4] = h.vectorAttribute( TQString( "cp%1" ).tqarg( u+v*4 ),
PMVector( o + s * u, 0, o + s * v ) );
m_uvVectors[0] = h.vectorAttribute( "uv0", c_defaultUVVector0 );
m_uvVectors[1] = h.vectorAttribute( "uv1", c_defaultUVVector1 );
m_uvVectors[2] = h.vectorAttribute( "uv2", c_defaultUVVector2 );
m_uvVectors[3] = h.vectorAttribute( "uv3", c_defaultUVVector3 );
Base::readAttributes( h );
}
PMMetaObject* PMBicubicPatch::tqmetaObject( ) const
{
if( !s_pMetaObject )
{
s_pMetaObject = new PMMetaObject( "BicubicPatch", Base::tqmetaObject( ),
createNewBicubicPatch );
s_pMetaObject->addProperty(
new PMBicubicPatchProperty( "patchType", &PMBicubicPatch::setPatchType,
&PMBicubicPatch::patchType ) );
s_pMetaObject->addProperty(
new PMBicubicPatchProperty( "uSteps", &PMBicubicPatch::setUSteps,
&PMBicubicPatch::uSteps ) );
s_pMetaObject->addProperty(
new PMBicubicPatchProperty( "vSteps", &PMBicubicPatch::setVSteps,
&PMBicubicPatch::vSteps ) );
s_pMetaObject->addProperty(
new PMBicubicPatchProperty( "flatness", &PMBicubicPatch::setFlatness,
&PMBicubicPatch::flatness ) );
s_pMetaObject->addProperty(
new PMBicubicPatchProperty( "uvEnabled", &PMBicubicPatch::enableUV,
&PMBicubicPatch::isUVEnabled ) );
s_pMetaObject->addProperty( new PMPointProperty( ) );
s_pMetaObject->addProperty( new PMUVVectorProperty( ) );
}
return s_pMetaObject;
}
void PMBicubicPatch::cleanUp( ) const
{
if( s_pMetaObject )
{
delete s_pMetaObject;
s_pMetaObject = 0;
}
Base::cleanUp( );
}
void PMBicubicPatch::setPatchType( int patchType )
{
if( ( patchType == 0 ) || ( patchType == 1 ) )
{
if( patchType != m_patchType )
{
if( m_pMemento )
m_pMemento->addData( s_pMetaObject, PMTypeID, m_patchType );
m_patchType = patchType;
}
}
else
kdError( PMArea ) << "Wrong type in PMBicubicPatch::setPatchType( )\n";
}
void PMBicubicPatch::setFlatness( double flatness )
{
if( flatness >= 0.0 )
{
if( flatness != m_flatness )
{
if( m_pMemento )
m_pMemento->addData( s_pMetaObject, PMFlatnessID, m_flatness );
m_flatness = flatness;
}
}
else
kdError( PMArea ) << "Flatness has to be >= 0 in PMBicubicPatch::setFlatness( )\n";
}
void PMBicubicPatch::setUSteps( int steps )
{
if( steps >= 0 )
{
if( steps != m_numUSteps )
{
if( m_pMemento )
m_pMemento->addData( s_pMetaObject, PMUStepsID, m_numUSteps );
m_numUSteps = steps;
setViewStructureChanged( );
}
}
else
kdError( PMArea ) << "uSteps has to be >= 0 in PMBicubicPatch::setUSteps( )\n";
}
void PMBicubicPatch::setVSteps( int steps )
{
if( steps >= 0 )
{
if( steps != m_numVSteps )
{
if( m_pMemento )
m_pMemento->addData( s_pMetaObject, PMVStepsID, m_numVSteps );
m_numVSteps = steps;
setViewStructureChanged( );
}
}
else
kdError( PMArea ) << "vSteps has to be >= 0 in PMBicubicPatch::setVSteps( )\n";
}
void PMBicubicPatch::setControlPoint( int i, const PMVector& p )
{
if( ( i >= 0 ) && ( i <= 15 ) )
{
if( p != m_point[i] )
{
if( m_pMemento )
m_pMemento->addData( s_pMetaObject, PMCP0ID + i, m_point[i] );
m_point[i] = p;
setViewStructureChanged( );
}
}
else
kdError( PMArea ) << "Wrong index in PMBicubicPatch::setControlPoint( )\n";
}
PMVector PMBicubicPatch::controlPoint( int i ) const
{
if( ( i >= 0 ) && ( i <= 15 ) )
return m_point[i];
else
kdError( PMArea ) << "Wrong index in PMBicubicPatch::controlPoint( )\n";
return PMVector( 0, 0, 0 );
}
void PMBicubicPatch::enableUV( bool yes )
{
if( yes != m_uvEnabled )
{
if( m_pMemento )
m_pMemento->addData( s_pMetaObject, PMUVEnabledID, m_uvEnabled );
m_uvEnabled = yes;
}
}
void PMBicubicPatch::setUVVector( int i, const PMVector& v )
{
if ( i >= 0 && i < 4 )
{
if( m_pMemento )
m_pMemento->addData( s_pMetaObject, PMUV0ID + i, m_uvVectors[i] );
m_uvVectors[i] = v;
m_uvVectors[i].resize( 2 );
}
else
kdError( PMArea ) << "Wrong index in PMBicubicPatch::setUVVector\n";
}
PMVector PMBicubicPatch::uvVector( int i ) const
{
if( i >= 0 && i < 4 )
return m_uvVectors[i];
else
kdError( PMArea ) << "Wrong index in PMBicubicPatch::uvVector\n";
return PMVector( 0.0, 0.0 );
}
PMDialogEditBase* PMBicubicPatch::editWidget( TQWidget* tqparent ) const
{
return new PMBicubicPatchEdit( tqparent );
}
void PMBicubicPatch::restoreMemento( PMMemento* s )
{
PMMementoDataIterator it( s );
PMMementoData* data;
for( ; it.current( ); ++it )
{
data = it.current( );
if( data->objectType( ) == s_pMetaObject )
{
switch( data->valueID( ) )
{
case PMTypeID:
setPatchType( data->intData( ) );
break;
case PMFlatnessID:
setFlatness( data->doubleData( ) );
break;
case PMUStepsID:
setUSteps( data->intData( ) );
break;
case PMVStepsID:
setVSteps( data->intData( ) );
break;
case PMUVEnabledID:
enableUV( data->boolData( ) );
break;
default:
if( ( data->valueID( ) >= PMCP0ID ) && ( data->valueID( ) <= PMCP15ID ) )
setControlPoint( data->valueID( ) - PMCP0ID, data->vectorData( ) );
else if ( data->valueID( ) >= PMUV0ID && data->valueID( ) <= PMUV3ID )
setUVVector( data->valueID( ) - PMUV0ID, data->vectorData( ) );
else
kdError( PMArea ) << "Wrong ID in PMBicubicPatch::restoreMemento\n";
break;
}
}
}
Base::restoreMemento( s );
}
void PMBicubicPatch::createViewStructure( )
{
int u, v, i, j;
int uSteps = m_numUSteps, vSteps = m_numVSteps;
if( uSteps > 5 ) uSteps = 5;
if( vSteps > 5 ) vSteps = 5;
if( uSteps < 0 ) uSteps = 0;
if( vSteps < 0 ) vSteps = 0;
// bugfix: Swap u and v
int segmentsU = pmpot( 2, vSteps );
int segmentsV = pmpot( 2, uSteps );
int np = ( segmentsU + 1 ) * ( segmentsV + 1 );
int nl = segmentsU * ( segmentsV + 1 ) + ( segmentsU + 1 ) * segmentsV;
int offset = 0;
if( !m_pViewStructure )
{
m_pViewStructure = new PMViewStructure( np, nl );
m_vsUSteps = uSteps + 1;
}
else
{
if( m_pViewStructure->points( ).size( ) != ( unsigned ) np )
m_pViewStructure->points( ).resize( np );
if( m_pViewStructure->lines( ).size( ) != ( unsigned ) nl )
m_pViewStructure->lines( ).resize( nl );
}
if( ( m_vsUSteps != uSteps ) || ( m_vsVSteps != vSteps ) )
{
PMLineArray& lines = m_pViewStructure->lines( );
int poffset = 0;
for( v = 0; v < ( segmentsV + 1 ); v++ )
{
for( u = 0; u < segmentsU; u++ )
{
lines[offset + u] = PMLine( poffset, poffset + 1 );
poffset++;
}
poffset++;
offset += segmentsU;
}
poffset = 0;
for( v = 0; v < segmentsV; v++ )
{
for( u = 0; u < ( segmentsU + 1 ); u++ )
{
lines[offset + u] = PMLine( poffset, poffset + segmentsU + 1 );
poffset++;
}
offset += segmentsU + 1;
}
m_vsUSteps = uSteps;
m_vsVSteps = vSteps;
}
PMPointArray& points = m_pViewStructure->points( );
offset = 0;
double incU = 1.0 / segmentsU;
double incV = 1.0 / segmentsV;
PMVector* hp[4];
for( v = 0; v < 4; v++ )
hp[v] = new PMVector[segmentsU+1];
PMVector tp[4];
double cu, cv;
// points in u direction
for( v = 0; v < 4; v++ )
{
for( u = 1; u < segmentsU; u++ )
{
cu = u * incU;
for( i = 0; i < 4; i++ )
tp[i] = m_point[v*4+i];
for( i = 3; i > 0; i-- )
for( j = 0; j < i; j++ )
tp[j] = tp[j] * ( 1 - cu ) + tp[j+1] * cu;
hp[v][u] = tp[0];
}
hp[v][0] = m_point[v*4];
hp[v][segmentsU] = m_point[v*4+3];
}
for( v = 0; v <= segmentsV; v++ )
{
cv = v * incV;
for( u = 0; u <= segmentsU; u++ )
{
for( i = 0; i < 4; i++ )
tp[i] = hp[i][u];
for( i = 3; i > 0; i-- )
for( j = 0; j < i; j++ )
tp[j] = tp[j] * ( 1 - cv ) + tp[j+1] * cv;
points[offset] = tp[0];
offset++;
}
}
for( v = 0; v < 4; v++ )
delete[] hp[v];
}
void PMBicubicPatch::controlPoints( PMControlPointList& list )
{
int u, v;
for( v = 0; v < 4; v++ )
for( u = 0; u < 4; u++ )
list.append( new PM3DControlPoint( m_point[u+v*4], u+v*4,
i18n( "Point (%1, %2)" ).tqarg( u ).tqarg( v ) ) );
}
void PMBicubicPatch::controlPointsChanged( PMControlPointList& list )
{
PMControlPoint* p;
for( p = list.first( ); p; p = list.next( ) )
{
if( p->changed( ) )
{
setControlPoint( p->id( ), p->position( ) );
}
}
}