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-rw-r--r--kpovmodeler/pmtriangleedit.cpp273
1 files changed, 273 insertions, 0 deletions
diff --git a/kpovmodeler/pmtriangleedit.cpp b/kpovmodeler/pmtriangleedit.cpp
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+++ b/kpovmodeler/pmtriangleedit.cpp
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+/*
+**************************************************************************
+ 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"