Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

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"