diff options
Diffstat (limited to 'kpovmodeler/pmtriangleedit.cpp')
| -rw-r--r-- | kpovmodeler/pmtriangleedit.cpp | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/kpovmodeler/pmtriangleedit.cpp b/kpovmodeler/pmtriangleedit.cpp new file mode 100644 index 00000000..7b225aa8 --- /dev/null +++ b/kpovmodeler/pmtriangleedit.cpp @@ -0,0 +1,273 @@ +/* +************************************************************************** + 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 <qlayout.h> +#include <qlabel.h> +#include <qcheckbox.h> +#include <qpushbutton.h> +#include <klocale.h> +#include <kmessagebox.h> + +PMTriangleEdit::PMTriangleEdit( QWidget* parent, const char* name ) + : Base( parent, name ) +{ + m_pDisplayedObject = 0; +} + +void PMTriangleEdit::createTopWidgets( ) +{ + Base::createTopWidgets( ); + + int i; + + QHBoxLayout *hl = new QHBoxLayout( topLayout( ) ); + m_pSmooth = new QCheckBox( i18n( "Smooth" ), this ); + hl->addWidget( m_pSmooth ); + connect( m_pSmooth, SIGNAL( toggled( bool ) ), + SLOT( slotSmoothChecked( bool ) ) ); + + m_pUVEnabled = new QCheckBox( i18n( "UV vectors" ), this ); + hl->addWidget( m_pUVEnabled ); + connect( m_pUVEnabled, SIGNAL( toggled( bool ) ), + SLOT( slotUVVectorsChecked( bool ) ) ); + + QGridLayout* gl = new QGridLayout( topLayout( ), 9, 2 ); + + for( i = 0; i < 3; i++ ) + { + m_pPoint[i] = new PMVectorEdit( "x", "y", "z", this ); + gl->addWidget( new QLabel( i18n( "Point %1:" ).arg( i+1 ), this ), + i * 3, 0 ); + gl->addWidget( m_pPoint[i], i * 3, 1 ); + connect( m_pPoint[i], SIGNAL( dataChanged( ) ), + SIGNAL( dataChanged( ) ) ); + + m_pNormal[i] = new PMVectorEdit( "x", "y", "z", this ); + m_pNormalLabel[i] = new QLabel( i18n( "Normal %1:" ).arg( 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], SIGNAL( dataChanged( ) ), + SIGNAL( dataChanged( ) ) ); + + m_pUVVector[i] = new PMVectorEdit( "u", "v", this ); + m_pUVVectorLabel[i] = new QLabel( i18n( "UV vector %1:" ).arg( 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], SIGNAL( dataChanged( ) ), + SIGNAL( dataChanged( ) ) ); + } + hl = new QHBoxLayout( topLayout( ) ); + m_pMirror = new QPushButton( i18n( "Invert Normal Vectors" ), this ); + hl->addWidget( m_pMirror ); + hl->addStretch( 1 ); + connect( m_pMirror, SIGNAL( clicked( ) ), 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" |