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tdegraphics/kpovmodeler/pmtriangleedit.cpp

274 lines
7.8 KiB

/*
**************************************************************************
description
--------------------
copyright : (C) 2000-2001 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 "pmtriangleedit.h"
#include "pmtriangle.h"
#include "pmvectoredit.h"
#include <tqlayout.h>
#include <tqlabel.h>
#include <tqcheckbox.h>
#include <tqpushbutton.h>
#include <klocale.h>
#include <kmessagebox.h>
PMTriangleEdit::PMTriangleEdit( TQWidget* parent, const char* name )
: Base( parent, name )
{
m_pDisplayedObject = 0;
}
void PMTriangleEdit::createTopWidgets( )
{
Base::createTopWidgets( );
int i;
TQHBoxLayout *hl = new TQHBoxLayout( topLayout( ) );
m_pSmooth = new TQCheckBox( i18n( "Smooth" ), this );
hl->addWidget( m_pSmooth );
connect( m_pSmooth, TQT_SIGNAL( toggled( bool ) ),
TQT_SLOT( slotSmoothChecked( bool ) ) );
m_pUVEnabled = new TQCheckBox( i18n( "UV vectors" ), this );
hl->addWidget( m_pUVEnabled );
connect( m_pUVEnabled, TQT_SIGNAL( toggled( bool ) ),
TQT_SLOT( slotUVVectorsChecked( bool ) ) );
TQGridLayout* gl = new TQGridLayout( topLayout( ), 9, 2 );
for( i = 0; i < 3; i++ )
{
m_pPoint[i] = new PMVectorEdit( "x", "y", "z", this );
gl->addWidget( new TQLabel( i18n( "Point %1:" ).tqarg( i+1 ), this ),
i * 3, 0 );
gl->addWidget( m_pPoint[i], i * 3, 1 );
connect( m_pPoint[i], TQT_SIGNAL( dataChanged( ) ),
TQT_SIGNAL( dataChanged( ) ) );
m_pNormal[i] = new PMVectorEdit( "x", "y", "z", this );
m_pNormalLabel[i] = new TQLabel( i18n( "Normal %1:" ).tqarg( i+1 ), this );
gl->addWidget( m_pNormalLabel[i], i * 3 + 1, 0 );
gl->addWidget( m_pNormal[i], i * 3 + 1, 1 );
connect( m_pNormal[i], TQT_SIGNAL( dataChanged( ) ),
TQT_SIGNAL( dataChanged( ) ) );
m_pUVVector[i] = new PMVectorEdit( "u", "v", this );
m_pUVVectorLabel[i] = new TQLabel( i18n( "UV vector %1:" ).tqarg( i+1 ), this );
gl->addWidget( m_pUVVectorLabel[i], i * 3 + 2, 0 );
gl->addWidget( m_pUVVector[i], i * 3 + 2, 1 );
connect( m_pUVVector[i], TQT_SIGNAL( dataChanged( ) ),
TQT_SIGNAL( dataChanged( ) ) );
}
hl = new TQHBoxLayout( topLayout( ) );
m_pMirror = new TQPushButton( i18n( "Invert Normal Vectors" ), this );
hl->addWidget( m_pMirror );
hl->addStretch( 1 );
connect( m_pMirror, TQT_SIGNAL( clicked( ) ), TQT_SLOT( slotInvertNormals( ) ) );
}
void PMTriangleEdit::displayObject( PMObject* o )
{
if( o->isA( "Triangle" ) )
{
bool readOnly = o->isReadOnly( );
m_pDisplayedObject = ( PMTriangle* ) o;
bool smooth = m_pDisplayedObject->isSmoothTriangle( );
bool uvVector = m_pDisplayedObject->isUVEnabled( );
int i;
for( i = 0; i < 3; i++ )
{
m_pPoint[i]->setVector( m_pDisplayedObject->point( i ) );
m_pPoint[i]->setReadOnly( readOnly );
m_pNormal[i]->setVector( m_pDisplayedObject->normal( i ) );
m_pNormal[i]->setReadOnly( readOnly );
m_pUVVector[i]->setVector( m_pDisplayedObject->uvVector( i ) );
m_pUVVector[i]->setReadOnly( readOnly );
m_pSmooth->setChecked( smooth );
if( smooth )
{
m_pNormal[i]->show( );
m_pNormalLabel[i]->show( );
m_pMirror->show( );
}
else
{
m_pNormal[i]->hide( );
m_pNormalLabel[i]->hide( );
m_pMirror->hide( );
}
m_pUVEnabled->setChecked( uvVector );
if( uvVector )
{
m_pUVVector[i]->show( );
m_pUVVectorLabel[i]->show( );
}
else
{
m_pUVVector[i]->hide( );
m_pUVVectorLabel[i]->hide( );
}
emit sizeChanged( );
}
Base::displayObject( o );
}
else
kdError( PMArea ) << "PMTriangleEdit: Can't display object\n";
}
void PMTriangleEdit::slotSmoothChecked( bool on )
{
int i;
for( i = 0; i < 3; i++ )
{
if( on )
{
m_pNormal[i]->show( );
m_pNormalLabel[i]->show( );
m_pMirror->show( );
}
else
{
m_pNormal[i]->hide( );
m_pNormalLabel[i]->hide( );
m_pMirror->hide( );
}
}
emit sizeChanged( );
emit dataChanged( );
}
void PMTriangleEdit::slotUVVectorsChecked( bool on )
{
int i;
for( i = 0; i < 3; ++i )
{
if( on )
{
m_pUVVector[i]->show( );
m_pUVVectorLabel[i]->show( );
}
else
{
m_pUVVector[i]->hide( );
m_pUVVectorLabel[i]->hide( );
}
}
emit sizeChanged( );
emit dataChanged( );
}
void PMTriangleEdit::slotInvertNormals( )
{
int i;
for( i = 0; i < 3; i++ )
if( !m_pNormal[i]->isDataValid( ) )
return;
for( i = 0; i < 3; i++ )
m_pNormal[i]->setVector( -( m_pNormal[i]->vector( ) ) );
}
void PMTriangleEdit::saveContents( )
{
int i;
if( m_pDisplayedObject )
{
Base::saveContents( );
for( i = 0; i < 3; i++ )
m_pDisplayedObject->setPoint( i, m_pPoint[i]->vector( ) );
if( m_pSmooth->isChecked( ) )
{
m_pDisplayedObject->setSmoothTriangle( true );
for( i = 0; i < 3; i++ )
m_pDisplayedObject->setNormal( i, m_pNormal[i]->vector( ) );
}
else
m_pDisplayedObject->setSmoothTriangle( false );
if( m_pUVEnabled->isChecked( ) )
{
m_pDisplayedObject->enableUV( true );
for( i = 0; i < 3; ++i )
m_pDisplayedObject->setUVVector( i, m_pUVVector[i]->vector( ) );
}
else
m_pDisplayedObject->enableUV( false );
}
}
bool PMTriangleEdit::isDataValid( )
{
int i;
for( i = 0; i < 3; i++ )
if( !m_pPoint[i]->isDataValid( ) )
return false;
PMVector p0 = m_pPoint[0]->vector( ),
p1 = m_pPoint[1]->vector( ),
p2 = m_pPoint[2]->vector( );
if( p0.approxEqual( p1 ) || p1.approxEqual( p2 ) || p0.approxEqual( p2 ) )
{
KMessageBox::error( this, i18n( "Please enter a valid triangle." ),
i18n( "Error" ) );
return false;
}
if( m_pSmooth->isChecked( ) )
{
for( i = 0; i < 3; i++ )
if( !m_pNormal[i]->isDataValid( ) )
return false;
PMVector n0 = m_pNormal[0]->vector( ),
n1 = m_pNormal[1]->vector( ),
n2 = m_pNormal[2]->vector( );
PMVector tn = PMVector::cross( p1 - p0, p2 - p0 );
double c0 = PMVector::dot( tn, n0 ),
c1 = PMVector::dot( tn, n1 ),
c2 = PMVector::dot( tn, n2 );
if( ( ( c0 * c1 ) < 0 ) || ( ( c0 * c2 ) < 0 ) )
{
KMessageBox::error( this, i18n( "All normal vectors have to point"
" to the same side of the triangle." ),
i18n( "Error" ) );
return false;
}
}
if( m_pUVEnabled->isChecked( ) )
{
for( i = 0; i < 3; ++i )
if( !m_pUVVector[i]->isDataValid( ) )
return false;
}
return Base::isDataValid( );
}
#include "pmtriangleedit.moc"