TQt4 port kdeedu

This enables compilation under both Qt3 and Qt4


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdeedu@1236073 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

48 files changed, 640 insertions, 624 deletions

diff --git a/kalzium/src/detailedgraphicaloverview.cpp b/kalzium/src/detailedgraphicaloverview.cpp
index d31e2579..67a4d231 100644
--- a/kalzium/src/detailedgraphicaloverview.cpp
+++ b/kalzium/src/detailedgraphicaloverview.cpp
@@ -28,14 +28,14 @@ email                : cniehaus@kde.org
 #include <tqpixmap.h>
 #include <tqrect.h>
 
-DetailedGraphicalOverview::DetailedGraphicalOverview( Element *el, TQWidget *parent, const char *name ) 
-: TQWidget( parent, name )
+DetailedGraphicalOverview::DetailedGraphicalOverview( Element *el, TQWidget *tqparent, const char *name ) 
+: TQWidget( tqparent, name )
 {
 	init( el );
 }
 
-DetailedGraphicalOverview::DetailedGraphicalOverview( TQWidget *parent, const char *name ) 
-: TQWidget( parent, name )
+DetailedGraphicalOverview::DetailedGraphicalOverview( TQWidget *tqparent, const char *name ) 
+: TQWidget( tqparent, name )
 {
 	init( 0L );
 }
@@ -59,12 +59,12 @@ void DetailedGraphicalOverview::paintEvent( TQPaintEvent* )
 	TQPainter p;
 	p.begin( &pm );
 
-	p.setBrush(Qt::SolidPattern);
+	p.setBrush(TQt::SolidPattern);
 
 	if ( !m_element )
 	{
 		pm.fill( paletteBackgroundColor() );
-		p.drawText( 0, 0, w, h, Qt::AlignCenter | Qt::WordBreak, i18n( "No element selected" ) );
+		p.drawText( 0, 0, w, h, TQt::AlignCenter | TQt::WordBreak, i18n( "No element selected" ) );
 	}
 	else
 	{
@@ -80,8 +80,8 @@ void DetailedGraphicalOverview::paintEvent( TQPaintEvent* )
 		p.setBrush( m_element->elementColor() );
 		p.drawRect( x1 , y1 , x2 , y2 );
 
-		p.setBrush( Qt::black );
-		p.setBrush(Qt::NoBrush);
+		p.setBrush( TQt::black );
+		p.setBrush(TQt::NoBrush);
 
 		TQFont fA = KGlobalSettings::generalFont();
 		TQFont fB = KGlobalSettings::generalFont();
@@ -126,20 +126,20 @@ void DetailedGraphicalOverview::paintEvent( TQPaintEvent* )
 		p.setFont( fC );
 		
 		//Name
-		p.drawText( 1, 0, w/2, h, Qt::AlignLeft, m_element->elname() );
+		p.drawText( 1, 0, w/2, h, TQt::AlignLeft, m_element->elname() );
 		
 		//Oxidationstates
 		fC.setPointSize( size2 );
 		p.setFont( fC );
 		int offsetOx = KalziumUtils::StringHeight( strLocalizedMass , fC, &p );
-		p.drawText( 1, h-offsetOx, w/2, offsetOx, Qt::AlignLeft, m_element->oxstage() );
+		p.drawText( 1, h-offsetOx, w/2, offsetOx, TQt::AlignLeft, m_element->oxstage() );
 
 		//Mass
 		fC.setPointSize( size3 );
 		p.setFont( fC );
 		
 		int offset = KalziumUtils::StringHeight( strLocalizedMass, fC, &p );
-		p.drawText( w/2, h-offset, w/2, offset, Qt::AlignRight, strLocalizedMass );
+		p.drawText( w/2, h-offset, w/2, offset, TQt::AlignRight, strLocalizedMass );
 
 		drawBiologicalSymbol( &p );
 	}
@@ -164,9 +164,9 @@ void DetailedGraphicalOverview::drawBiologicalSymbol( TQPainter *p )
 	if ( m_element->biological() > 0 )
 	{
 		const int radius = db + 8;
-		p->setBrush( Qt::SolidPattern );
-		p->setBrush( Qt::white );
-		p->setPen( Qt::black );
+		p->setBrush( TQt::SolidPattern );
+		p->setBrush( TQt::white );
+		p->setPen( TQt::black );
 		p->drawRoundRect( TQRect( width() - radius, 
 					-radius, 
 					2 * radius, 
@@ -178,52 +178,52 @@ void DetailedGraphicalOverview::drawBiologicalSymbol( TQPainter *p )
 		case 0:        //nothing
 			break;
 		case 1:        //red, red
-			p->setBrush( Qt::red );
-			p->setBrush(Qt::NoBrush);
-			p->setPen( Qt::red );
+			p->setBrush( TQt::red );
+			p->setBrush(TQt::NoBrush);
+			p->setPen( TQt::red );
 			p->drawEllipse( pos_x,pos_y,db,db );
-			p->setBrush(Qt::SolidPattern);
-			p->setBrush( Qt::red );
+			p->setBrush(TQt::SolidPattern);
+			p->setBrush( TQt::red );
 			p->drawEllipse( pos_x+d_ds, pos_y+d_ds, ds, ds );
 			break;
 		case 2:        //green, red
-			p->setBrush( Qt::red );
-			p->setBrush(Qt::NoBrush);
-			p->setPen( Qt::red );
+			p->setBrush( TQt::red );
+			p->setBrush(TQt::NoBrush);
+			p->setPen( TQt::red );
 			p->drawEllipse( pos_x,pos_y,db,db );
-			p->setBrush(Qt::SolidPattern);
-			p->setBrush( Qt::green );
-			p->setPen( Qt::green );
+			p->setBrush(TQt::SolidPattern);
+			p->setBrush( TQt::green );
+			p->setPen( TQt::green );
 			p->drawEllipse( pos_x+d_ds, pos_y+d_ds, ds, ds );
 			break;
 		case 3:        //green
-			p->setBrush(Qt::SolidPattern);
-			p->setBrush( Qt::green );
-			p->setPen( Qt::green );
+			p->setBrush(TQt::SolidPattern);
+			p->setBrush( TQt::green );
+			p->setPen( TQt::green );
 			p->drawEllipse( pos_x+d_ds, pos_y+d_ds, ds, ds );
 			break;
 		case 4:        //green, blue
-			p->setBrush( Qt::blue );
-			p->setBrush(Qt::NoBrush);
-			p->setPen( Qt::blue );
+			p->setBrush( TQt::blue );
+			p->setBrush(TQt::NoBrush);
+			p->setPen( TQt::blue );
 			p->drawEllipse( pos_x,pos_y,db,db );
-			p->setBrush(Qt::SolidPattern);
-			p->setBrush( Qt::green );
-			p->setPen( Qt::green );
+			p->setBrush(TQt::SolidPattern);
+			p->setBrush( TQt::green );
+			p->setPen( TQt::green );
 			p->drawEllipse( pos_x+d_ds, pos_y+d_ds, ds, ds );
 			break;
 		case 5:        //blue
-			p->setBrush(Qt::SolidPattern);
-			p->setBrush( Qt::blue );
-			p->setPen( Qt::blue );
+			p->setBrush(TQt::SolidPattern);
+			p->setBrush( TQt::blue );
+			p->setPen( TQt::blue );
 			p->drawEllipse( pos_x+d_ds, pos_y+d_ds, ds, ds );
 			break;
 		case 6:        //blue, blue
-			p->setBrush( Qt::blue );
-			p->setBrush(Qt::NoBrush);
-			p->setPen( Qt::blue );
+			p->setBrush( TQt::blue );
+			p->setBrush(TQt::NoBrush);
+			p->setPen( TQt::blue );
 			p->drawEllipse( pos_x,pos_y,db,db );
-			p->setBrush(Qt::SolidPattern);
+			p->setBrush(TQt::SolidPattern);
 			p->drawEllipse( pos_x+d_ds, pos_y+d_ds, ds, ds );
 			break;
 	}
diff --git a/kalzium/src/detailedgraphicaloverview.h b/kalzium/src/detailedgraphicaloverview.h
index 6fb649dc..90658abc 100644
--- a/kalzium/src/detailedgraphicaloverview.h
+++ b/kalzium/src/detailedgraphicaloverview.h
@@ -25,13 +25,14 @@ class Element;
  * in one widget like a lot people know it from school
  * @author Carsten Niehaus
  */
-class DetailedGraphicalOverview : public QWidget
+class DetailedGraphicalOverview : public TQWidget
 {
 	Q_OBJECT
+  TQ_OBJECT
 
 	public:
-		DetailedGraphicalOverview( Element *el, TQWidget *parent, const char *name=0 );
-		DetailedGraphicalOverview( TQWidget *parent, const char *name=0 );
+		DetailedGraphicalOverview( Element *el, TQWidget *tqparent, const char *name=0 );
+		DetailedGraphicalOverview( TQWidget *tqparent, const char *name=0 );
 
 		/**
 		 * sets the elements whose data will be used to @p el
diff --git a/kalzium/src/detailinfodlg.cpp b/kalzium/src/detailinfodlg.cpp
index c4fc8899..7503c77d 100644
--- a/kalzium/src/detailinfodlg.cpp
+++ b/kalzium/src/detailinfodlg.cpp
@@ -44,8 +44,8 @@
 
 //TODO add bondxx-radius (H-H-distance for example)
 
-DetailedInfoDlg::DetailedInfoDlg( Element *el , TQWidget *parent, const char *name)
-    : KDialogBase( IconList, name, Help|User1|User2|Close, Close, parent, name, 
+DetailedInfoDlg::DetailedInfoDlg( Element *el , TQWidget *tqparent, const char *name)
+    : KDialogBase( IconList, name, Help|User1|User2|Close, Close, tqparent, name, 
 			false, //non modal
 			false, 
 			KGuiItem(i18n("Next element", "Next"), "1rightarrow"), 
@@ -66,7 +66,7 @@ DetailedInfoDlg::DetailedInfoDlg( Element *el , TQWidget *parent, const char *na
 	createContent();
 
 	m_actionCollection = new KActionCollection(this);	
-	KStdAction::quit(this, TQT_SLOT(slotClose()), m_actionCollection);
+	KStdAction::quit(TQT_TQOBJECT(this), TQT_SLOT(slotClose()), m_actionCollection);
 
 	setButtonTip( User2, i18n( "Goes to the previous element" ) );
 	setButtonTip( User1, i18n( "Goes to the next element" ) );
@@ -94,10 +94,10 @@ void DetailedInfoDlg::setElement(Element *element)
 KHTMLPart* DetailedInfoDlg::addHTMLTab( const TQString& title, const TQString& icontext, const TQString& iconname )
 {
 	TQFrame *frame = addPage(title, icontext, BarIcon(iconname));
-	TQVBoxLayout *layout = new TQVBoxLayout( frame );
-	layout->setMargin( 0 );
-	KHTMLPart *w = new KHTMLPart( frame, "html-part", frame );
-	layout->addWidget( w->view() );
+	TQVBoxLayout *tqlayout = new TQVBoxLayout( frame );
+	tqlayout->setMargin( 0 );
+	KHTMLPart *w = new KHTMLPart( frame, "html-part", TQT_TQOBJECT(frame) );
+	tqlayout->addWidget( w->view() );
 
 	return w;
 }
@@ -122,43 +122,43 @@ TQString DetailedInfoDlg::getHtml(DATATYPE type)
 	html.append( "<div><table summary=\"header\"><tr><td>" );
 	html.append( m_element->symbol() );
 	html.append( "<td><td>" );
-	html.append( i18n( "Block: %1" ).arg( m_element->block() ) );
+	html.append( i18n( "Block: %1" ).tqarg( m_element->block() ) );
 	html.append( "</td></tr></table></div>" );
 	html.append( "<table summary=\"characteristics\" class=\"characterstics\">");
 	switch ( type )
 	{
 		case CHEMICAL:
 			html.append( "<tr><td><img src=\"structure.png\" alt=\"icon\"/></td><td>" );
-			html.append( "<b>" + i18n( "Electronic configuration: %1" ).arg( m_element->parsedOrbits() ) + "</b>" );
+			html.append( "<b>" + i18n( "Electronic configuration: %1" ).tqarg( m_element->parsedOrbits() ) + "</b>" );
 			html.append( "</td></tr>" );
 			html.append( "<tr><td><img src=\"density.png\" alt=\"icon\"/></td><td>" );
-			html.append( "<b>" + i18n( "Density: %1" ).arg( m_element->adjustUnits( Element::DENSITY ) ) + "</b>" );
+			html.append( "<b>" + i18n( "Density: %1" ).tqarg( m_element->adjustUnits( Element::DENSITY ) ) + "</b>" );
 			html.append( "</td></tr>" );
 			html.append( "<tr><td><img src=\"radius.png\" alt=\"icon\"/></td><td><b>" );
-			html.append( "<b>" + i18n( "Covalent Radius: %1" ).arg( m_element->adjustRadius( Element::COVALENT ) ) + "</b>" );
+			html.append( "<b>" + i18n( "Covalent Radius: %1" ).tqarg( m_element->adjustRadius( Element::COVALENT ) ) + "</b>" );
 			html.append( "</td></tr>" );
 			if ( m_element->radius(Element::IONIC) > 0.0 )
 			{
 				html.append( "<tr><td><img src=\"radius.png\" alt=\"icon\"/></td><td>" );
-				html.append( i18n( "<b>Ionic Radius (Charge): %1</b> (%2)" ).arg( m_element->adjustRadius(Element::IONIC) ).arg( m_element->ioncharge() ) );
+				html.append( i18n( "<b>Ionic Radius (Charge): %1</b> (%2)" ).tqarg( m_element->adjustRadius(Element::IONIC) ).tqarg( m_element->ioncharge() ) );
 				html.append( "</td></tr>" );
 			}
 			if ( m_element->radius(Element::VDW) > 0.0 )
 			{
 				html.append( "<tr><td><img src=\"radius.png\" alt=\"icon\"/></td><td>" );
-				html.append( "<b>" + i18n( "van der Waals Radius: %1" ).arg( m_element->adjustRadius(Element::VDW) ) + "</b>" );
+				html.append( "<b>" + i18n( "van der Waals Radius: %1" ).tqarg( m_element->adjustRadius(Element::VDW) ) + "</b>" );
 				html.append( "</td></tr>" );
 			}
 		
 			if ( m_element->radius(Element::ATOMIC) > 0.0 )
 			{
 				html.append( "<tr><td><img src=\"radius.png\" alt=\"icon\"/></td><td><b>" );
-				html.append( "<b>" + i18n( "Atomic Radius: %1" ).arg( m_element->adjustRadius(Element::ATOMIC) ) + "</b>" );
+				html.append( "<b>" + i18n( "Atomic Radius: %1" ).tqarg( m_element->adjustRadius(Element::ATOMIC) ) + "</b>" );
 				html.append( "</td></tr>" );
 			}
 			
 			html.append( "<tr><td stype=\"text-align:center\"><img src=\"mass.png\" alt=\"icon\"/></td><td>" );
-			html.append( "<b>" + i18n( "Mass: %1" ).arg( m_element->adjustUnits( Element::MASS ) ) + "</b>" );
+			html.append( "<b>" + i18n( "Mass: %1" ).tqarg( m_element->adjustUnits( Element::MASS ) ) + "</b>" );
 			html.append( "</td></tr>" );
 			if ( !m_element->isotopes().isEmpty() )
 			{
@@ -171,22 +171,22 @@ TQString DetailedInfoDlg::getHtml(DATATYPE type)
 			html.append( "<tr><td><img src=\"discovery.png\" alt=\"icon\"/></td><td>" );
 			html.append( m_element->adjustUnits( Element::DATE ) );
 			if ( !m_element->scientist( ).isEmpty() )
-				html += "<br />" + i18n("It was discovered by %1").arg(m_element->scientist() );
+				html += "<br />" + i18n("It was discovered by %1").tqarg(m_element->scientist() );
 			html.append( "</td></tr>" );
 			
 			if ( m_element->abundance() > 0 ){
 			html.append( "<tr><td><img src=\"abundance.png\" alt=\"icon\"/></td><td>" );
-			html.append( i18n( "Abundance in crustal rocks: %1 ppm" ).arg( KGlobal::locale()->formatLong( m_element->abundance() ) ) );
+			html.append( i18n( "Abundance in crustal rocks: %1 ppm" ).tqarg( KGlobal::locale()->formatLong( m_element->abundance() ) ) );
 			html.append( "</td></tr>" );
 			}
 			
 			html.append( "<tr><td><img src=\"mass.png\" alt=\"icon\"/></td><td>" );
-			html.append( i18n( "Mean mass: %1 u" ).arg( KalziumUtils::localizedValue( m_element->meanmass(), 6 ) ) );
+			html.append( i18n( "Mean mass: %1 u" ).tqarg( KalziumUtils::localizedValue( m_element->meanmass(), 6 ) ) );
 			html.append( "</td></tr>" );
 			if ( !m_element->nameOrigin().isEmpty() )
 			{
 				html.append( "<tr><td><img src=\"book.png\" alt=\"icon\"/></td><td>" );
-				html.append( i18n( "Origin of the name: %1" ).arg( m_element->nameOrigin() ) );
+				html.append( i18n( "Origin of the name: %1" ).tqarg( m_element->nameOrigin() ) );
 				html.append( "</td></tr>" );
 			}
 			if ( m_element->artificial() || m_element->radioactive() )
@@ -203,16 +203,16 @@ TQString DetailedInfoDlg::getHtml(DATATYPE type)
 			break;
 		case ENERGY:
 			html.append( "<tr><td><img src=\"meltingpoint.png\" alt=\"icon\"/></td><td>" );
-			html.append( i18n( "Melting Point: %1" ).arg( m_element->adjustUnits( Element::MELTINGPOINT ) ) );
+			html.append( i18n( "Melting Point: %1" ).tqarg( m_element->adjustUnits( Element::MELTINGPOINT ) ) );
 			html.append( "</td></tr>" );
 			html.append( "<tr><td><img src=\"boilingpoint.png\" alt=\"icon\"/></td><td>" );
-			html.append( i18n( "Boiling Point: %1" ).arg( m_element->adjustUnits( Element::BOILINGPOINT ) ) );
+			html.append( i18n( "Boiling Point: %1" ).tqarg( m_element->adjustUnits( Element::BOILINGPOINT ) ) );
 			html.append( "</td></tr>" );
 			html.append( "<tr><td><img src=\"structure.png\" alt=\"icon\"/></td><td>" );
-			html.append( i18n( "Electronegativity: %1" ).arg( m_element->adjustUnits( Element::EN ) ) );
+			html.append( i18n( "Electronegativity: %1" ).tqarg( m_element->adjustUnits( Element::EN ) ) );
 			html.append( "</td></tr>" );
 			html.append( "<tr><td><img src=\"electronaffinity.png\" alt=\"icon\"/></td><td>" );
-			html.append( i18n( "Electron affinity: %1 " ).arg( m_element->adjustUnits(Element::EA) ) );
+			html.append( i18n( "Electron affinity: %1 " ).tqarg( m_element->adjustUnits(Element::EA) ) );
 			html.append( "</td></tr>" );
 						
 
@@ -221,7 +221,7 @@ TQString DetailedInfoDlg::getHtml(DATATYPE type)
 			{
 				html.append( "<tr><td><img src=\"ionisation.png\" alt=\"icon\"/></td><td>" );
 				html.append( i18n("the first variable is a number. The result is for example '1.' or '5.', the second is the value of the ionisation energy",
-				             "%1. Ionization energy: %2" ).arg( TQString::number( i+1 ), m_element->adjustUnits( Element::IE, ionlist[i] ) ) );
+				             "%1. Ionization energy: %2" ).tqarg( TQString::number( i+1 ), m_element->adjustUnits( Element::IE, ionlist[i] ) ) );
 			html.append( "</td></tr>" );
 			}
 			break;
@@ -264,13 +264,13 @@ TQString DetailedInfoDlg::isotopeTable()
 	{
 		html.append( "<tr><td align=\"right\">" );
 		if ( ( *it )->weight() > 0.0 )
-			html.append( i18n( "%1 u" ).arg( KalziumUtils::localizedValue( ( *it )->weight(), 6 ) ) );
-		//	html.append( i18n( "%1 u" ).arg( TQString::number( ( *it )->weight() ) ));
+			html.append( i18n( "%1 u" ).tqarg( KalziumUtils::localizedValue( ( *it )->weight(), 6 ) ) );
+		//	html.append( i18n( "%1 u" ).tqarg( TQString::number( ( *it )->weight() ) ));
 		html.append( "</td><td>" );
 		html.append( TQString::number( ( *it )->neutrons() ) );
 		html.append( "</td><td>" );
 		if ( ( *it )->percentage() > 0.0 )
-			html.append( i18n( "this can for example be '24%'", "%1%" ).arg( KalziumUtils::localizedValue( ( *it )->percentage(), 6 ) ) );
+			html.append( i18n( "this can for example be '24%'", "%1%" ).tqarg( KalziumUtils::localizedValue( ( *it )->percentage(), 6 ) ) );
 		html.append( "</td><td>" );
 		if ( ( *it )->halflife() > 0.0 ) {
 			html.append( ( *it )->halflifeAsString()  );
@@ -278,49 +278,49 @@ TQString DetailedInfoDlg::isotopeTable()
 		html.append( "</td><td>" );
 		if ( ( *it )->alphapercentage() > 0.0 ){
 			if ( ( *it )->alphadecay() > 0.0 )
-			html.append( i18n( "%1 MeV" ).arg( KalziumUtils::localizedValue( ( *it )->alphadecay(), 6 ) ) );
-			html.append( i18n( " %1" ).arg( TQChar( 945 ) ) );
+			html.append( i18n( "%1 MeV" ).tqarg( KalziumUtils::localizedValue( ( *it )->alphadecay(), 6 ) ) );
+			html.append( i18n( " %1" ).tqarg( TQChar( 945 ) ) );
 			if ( ( *it )->alphapercentage() < 100.0)
-				html.append( i18n( "(%1%)" ).arg( KalziumUtils::localizedValue( (*it )->alphapercentage(), 6 ) ) );
+				html.append( i18n( "(%1%)" ).tqarg( KalziumUtils::localizedValue( (*it )->alphapercentage(), 6 ) ) );
 			if ( ( *it )->betaminuspercentage() > 0.0 || ( *it )->betapluspercentage() > 0.0 || ( *it )->ecpercentage() > 0.0)
 			html.append( i18n( ", " ) );
 			}
 		if ( ( *it )->betaminuspercentage() > 0.0 ){
 			if ( ( *it )->betaminusdecay() > 0.0 )
-				html.append( i18n( "%1 MeV" ).arg( KalziumUtils::localizedValue( ( *it )->betaminusdecay(), 6 ) ) );
-			html.append( i18n( " %1<sup>-</sup>" ).arg( TQChar( 946 ) ) );
+				html.append( i18n( "%1 MeV" ).tqarg( KalziumUtils::localizedValue( ( *it )->betaminusdecay(), 6 ) ) );
+			html.append( i18n( " %1<sup>-</sup>" ).tqarg( TQChar( 946 ) ) );
 			if ( ( *it )->betaminuspercentage() < 100.0)
-				html.append( i18n( "(%1%)" ).arg( KalziumUtils::localizedValue( ( *it )->betaminuspercentage(), 6 ) ));
+				html.append( i18n( "(%1%)" ).tqarg( KalziumUtils::localizedValue( ( *it )->betaminuspercentage(), 6 ) ));
 			if ( ( *it )->betapluspercentage() > 0.0 || ( *it )->ecpercentage() > 0.0 )
 			html.append( i18n( ", " ) );
 			}
 		if ( ( *it )->betapluspercentage() > 0.0 ){
 			if ( ( *it )->betaplusdecay() > 0.0 )
-				html.append( i18n( "%1 MeV" ).arg( KalziumUtils::localizedValue( ( *it )->betaplusdecay(), 6 ) ) );
-			html.append( i18n( " %1<sup>+</sup>" ).arg(TQChar( 946 ) ) );
+				html.append( i18n( "%1 MeV" ).tqarg( KalziumUtils::localizedValue( ( *it )->betaplusdecay(), 6 ) ) );
+			html.append( i18n( " %1<sup>+</sup>" ).tqarg(TQChar( 946 ) ) );
 			if ( ( *it )->betapluspercentage() == ( *it )->ecpercentage() ) {
 				if ( ( *it )->ecdecay() > 0.0 ) {
-					html.append( i18n( "%1 MeV" ).arg( KalziumUtils::localizedValue( ( *it )->ecdecay(), 6 ) ) ); 
+					html.append( i18n( "%1 MeV" ).tqarg( KalziumUtils::localizedValue( ( *it )->ecdecay(), 6 ) ) ); 
 				}
 				html.append( i18n( "Acronym of Electron Capture"," EC" ) ); 
 			}
 			if ( ( *it )->betapluspercentage() < 100.0)	
-				html.append( i18n( "(%1%)" ).arg( KalziumUtils::localizedValue( ( *it )->betapluspercentage(), 6 ) ) ); 
+				html.append( i18n( "(%1%)" ).tqarg( KalziumUtils::localizedValue( ( *it )->betapluspercentage(), 6 ) ) ); 
 			html += " ";
 			}	
 		if ( ( *it )->ecpercentage() > 0.0 && ( *it )->ecpercentage()!=( *it )->betapluspercentage()){
 			if ( ( *it )->ecdecay() > 0.0 )
-				html.append( i18n( "%1 MeV" ).arg( KalziumUtils::localizedValue( ( *it )->ecdecay(), 6 ) ) );
+				html.append( i18n( "%1 MeV" ).tqarg( KalziumUtils::localizedValue( ( *it )->ecdecay(), 6 ) ) );
 			html.append( i18n( "Acronym of Electron Capture"," EC" ) );
 			if ( ( *it )->ecpercentage() < 100.0 )
-				html.append( i18n( "(%1%)" ).arg( KalziumUtils::localizedValue( ( *it )->ecpercentage(), 6 ) ) );
+				html.append( i18n( "(%1%)" ).tqarg( KalziumUtils::localizedValue( ( *it )->ecpercentage(), 6 ) ) );
 			}
 		html.append( "</td><td>" );
 		html.append( ( *it )->spin() );
 		html.append( "</td><td>" );
 		if ( !( *it )->magmoment().isEmpty() ) {
 			TQString v = KGlobal::locale()->formatNumber( ( *it )->magmoment(), false, 6 );
-			html.append( i18n( "%1 %2<sub>n</sub>" ).arg( v ).arg( TQChar( 956 ) ) );
+			html.append( i18n( "%1 %2<sub>n</sub>" ).tqarg( v ).tqarg( TQChar( 956 ) ) );
 		}	
 		html.append( "</td></tr>" );
 	
@@ -379,7 +379,7 @@ void DetailedInfoDlg::reloadContent()
 	const TQString element_symbol = m_element->symbol();
 
 	// updating caption
-	setCaption( i18n( "For example Carbon (6)" , "%1 (%2)" ).arg( element_name ).arg( m_elementNumber ) );
+	setCaption( i18n( "For example Carbon (6)" , "%1 (%2)" ).tqarg( element_name ).tqarg( m_elementNumber ) );
 
 	// updating overview tab
 	dTab->setElement( m_element );
@@ -389,21 +389,21 @@ void DetailedInfoDlg::reloadContent()
 	if ( TQFile::exists( picpath ) )
 	{
 		TQImage img( picpath, "JPEG" );
-		img = img.smoothScale ( 400, 400, TQImage::ScaleMin );
+		img = img.smoothScale ( 400, 400, TQ_ScaleMin );
 		TQPixmap pic;
 		pic.convertFromImage( img );
 		piclabel->setPixmap( pic );
 	}
 	else 
-		piclabel->setText( i18n( "No picture of %1 found." ).arg( element_name ) );
+		piclabel->setText( i18n( "No picture of %1 found." ).tqarg( element_name ) );
 
 	// updating atomic model tab
 	wOrbits->setElementNumber( m_elementNumber );
 	TQWhatsThis::add( wOrbits,
 	    i18n( "Here you can see the atomic hull of %1. %2 has the configuration %3." )
-	    .arg( m_element->elname() )
-	    .arg( m_element->elname() )
-	    .arg( m_element->parsedOrbits() ) );
+	    .tqarg( m_element->elname() )
+	    .tqarg( m_element->elname() )
+	    .tqarg( m_element->parsedOrbits() ) );
 
 	// updating html tabs
 	fillHTMLTab( m_htmlpages["chemical"], getHtml( CHEMICAL ) );
@@ -422,7 +422,7 @@ void DetailedInfoDlg::reloadContent()
 	}
 	else
 	{
-		m_spectrumLabel->setText( i18n( "No spectrum of %1 found." ).arg( element_name ) );
+		m_spectrumLabel->setText( i18n( "No spectrum of %1 found." ).tqarg( element_name ) );
 		m_spectrumStack->raiseWidget( m_spectrumLabel );
 	}
 }
diff --git a/kalzium/src/detailinfodlg.h b/kalzium/src/detailinfodlg.h
index a00c06a2..4087239d 100644
--- a/kalzium/src/detailinfodlg.h
+++ b/kalzium/src/detailinfodlg.h
@@ -39,9 +39,10 @@ class KHTMLPart;
 class DetailedInfoDlg : public KDialogBase
 {
 	Q_OBJECT
+  TQ_OBJECT
 
 	public:
-		DetailedInfoDlg( Element *el , TQWidget *parent=0, const char *name=0);
+		DetailedInfoDlg( Element *el , TQWidget *tqparent=0, const char *name=0);
  
 		void setElement(Element *el);
 
diff --git a/kalzium/src/element.cpp b/kalzium/src/element.cpp
index 3fc7e493..687f0ad8 100644
--- a/kalzium/src/element.cpp
+++ b/kalzium/src/element.cpp
@@ -68,8 +68,8 @@ TQString Element::parsedOrbits( bool canBeEmpty )
 	TQString orbits = m_orbits;
 	TQRegExp rxs("([a-z])([0-9]+)");
 	TQRegExp rxb("([a-z]{2}) ",false);
-	orbits.replace(rxs,"\\1<sup>\\2</sup>"); //superscript around electron number
-	orbits.replace(rxb,"<b>\\1</b> "); //bold around element symbols
+	orbits.tqreplace(rxs,"\\1<sup>\\2</sup>"); //superscript around electron number
+	orbits.tqreplace(rxb,"<b>\\1</b> "); //bold around element symbols
 	return orbits;
 }
 
@@ -106,7 +106,7 @@ const TQString Element::adjustRadius( RADIUSTYPE rtype )
 	if ( val <= 0 )
 		v = i18n( "Value unknown" );
 	else
-		v = i18n( "%1 is a length, eg: 12.3 pm", "%1 pm" ).arg( KalziumUtils::localizedValue( val, 6 ) );
+		v = i18n( "%1 is a length, eg: 12.3 pm", "%1 pm" ).tqarg( KalziumUtils::localizedValue( val, 6 ) );
 	return v;
 }
 
@@ -132,7 +132,7 @@ const TQString Element::adjustUnits( const int type, double value )
 
 const TQString Element::adjustUnits( const int type )
 {
-	TQString v = TQString::null;
+	TQString v = TQString();
 
 	double val = 0.0; //the value to convert
 	
@@ -151,19 +151,19 @@ const TQString Element::adjustUnits( const int type )
 			TQString strVal = KalziumUtils::localizedValue( newvalue, 6 );
 			switch (Prefs::temperature()) {
 				case 0: //Kelvin
-					v = i18n( "%1 is the temperature in Kelvin", "%1 K" ).arg( strVal );
+					v = i18n( "%1 is the temperature in Kelvin", "%1 K" ).tqarg( strVal );
 					break;
 				case 1://Kelvin to Celsius
-					v = i18n( "%1 is the temperature in Celsius", "%1 %2C" ).arg( strVal ).arg( TQChar(0xB0) );
+					v = i18n( "%1 is the temperature in Celsius", "%1 %2C" ).tqarg( strVal ).tqarg( TQChar(0xB0) );
 					break;
 				case 2: // Kelvin to Fahrenheit
-					v = i18n( "%1 is the temperature in Fahrenheit", "%1 %2F" ).arg( strVal ).arg( TQChar(0xB0) );
+					v = i18n( "%1 is the temperature in Fahrenheit", "%1 %2F" ).tqarg( strVal ).tqarg( TQChar(0xB0) );
 					break;
 				case 3: // Kelvin to Rankine
-					v = i18n( "%1 is the temperature in Rankine", "%1 %2Ra" ).arg( strVal ).arg( TQChar(0xB0) );
+					v = i18n( "%1 is the temperature in Rankine", "%1 %2Ra" ).tqarg( strVal ).tqarg( TQChar(0xB0) );
 					break;
 				case 4: // Kelvin to Reaumur
-					v = i18n( "%1 is the temperature in Reaumur", "%1 %2R" ).arg( strVal ).arg( TQChar(0xB0) );
+					v = i18n( "%1 is the temperature in Reaumur", "%1 %2R" ).tqarg( strVal ).tqarg( TQChar(0xB0) );
 					break;
 			}
 		}
@@ -186,12 +186,12 @@ const TQString Element::adjustUnits( const int type )
 		{
 			if ( Prefs::energies() == 0 )
 			{
-				v = i18n( "%1 kJ/mol" ).arg( KalziumUtils::localizedValue( val, 6 ) );
+				v = i18n( "%1 kJ/mol" ).tqarg( KalziumUtils::localizedValue( val, 6 ) );
 			}
 			else // use electronvolt
 			{
 				val/=96.6;
-				v = i18n( "%1 eV" ).arg( KalziumUtils::localizedValue( val, 6 ) );
+				v = i18n( "%1 eV" ).tqarg( KalziumUtils::localizedValue( val, 6 ) );
 			}
 		}
 	}
@@ -201,7 +201,7 @@ const TQString Element::adjustUnits( const int type )
 		if ( val <= 0 )
 			v = i18n( "Value unknown" );
 		else
-			v = i18n( "%1 u" ).arg( KalziumUtils::localizedValue( val, 6 ) );
+			v = i18n( "%1 u" ).tqarg( KalziumUtils::localizedValue( val, 6 ) );
 	}
 	else if ( type == DENSITY ) // its a density
 	{
@@ -213,11 +213,11 @@ const TQString Element::adjustUnits( const int type )
 		{
 			if ( boiling() < 295.0 && melting() < 295.0)//gasoline
 			{
-				v = i18n( "%1 g/L" ).arg( KalziumUtils::localizedValue( val, 6 ) );
+				v = i18n( "%1 g/L" ).tqarg( KalziumUtils::localizedValue( val, 6 ) );
 			}
 			else//liquid or solid
 			{
-				v = i18n( "%1 g/cm<sup>3</sup>" ).arg( KalziumUtils::localizedValue( val, 6 ));
+				v = i18n( "%1 g/cm<sup>3</sup>" ).tqarg( KalziumUtils::localizedValue( val, 6 ));
 			}
 		}
 	}
@@ -230,7 +230,7 @@ const TQString Element::adjustUnits( const int type )
 		}
 		else
 		{
-			v = i18n( "This element was discovered in the year %1" ).arg( TQString::number( val ) );
+			v = i18n( "This element was discovered in the year %1" ).tqarg( TQString::number( val ) );
 		}
 	}
 
@@ -263,18 +263,18 @@ void Element::drawStateOfMatter( TQPainter* p, double temp )
 	p->setFont( f );
 
 	//top left
-	p->setPen( Qt::black );
+	p->setPen( TQt::black );
 	text = KalziumUtils::localizedValue( KalziumUtils::strippedValue( mass( ) ), 6 );
-	p->drawText( X,Y ,ELEMENTSIZE,h_small,Qt::AlignCenter, text );
+	p->drawText( X,Y ,ELEMENTSIZE,h_small,TQt::AlignCenter, text );
 
 	text = TQString::number( number() );
-	p->drawText( X,Y+ELEMENTSIZE-h_small , ELEMENTSIZE, h_small,Qt::AlignCenter, text );
+	p->drawText( X,Y+ELEMENTSIZE-h_small , ELEMENTSIZE, h_small,TQt::AlignCenter, text );
 
 	p->setFont( symbol_font );
-	p->drawText( X,Y, ELEMENTSIZE,ELEMENTSIZE,Qt::AlignCenter, symbol() );
+	p->drawText( X,Y, ELEMENTSIZE,ELEMENTSIZE,TQt::AlignCenter, symbol() );
 	
 	//border
-	p->setPen( Qt::black );
+	p->setPen( TQt::black );
 	p->drawRect( X, Y,ELEMENTSIZE+1,ELEMENTSIZE+1);
 }
 
@@ -289,7 +289,7 @@ TQColor Element::currentColor( const double temp )
 	//If either the mp or bp is not known return
 	//This is to avoid undefined behaviour
 //	if ( iButton_boiling <= 0.0 || iButton_melting <= 0.0 )
-//		return Qt::lightGray;
+//		return TQt::lightGray;
 
 	if ( temp < iButton_melting )
 	{ //the element is solid
@@ -305,7 +305,7 @@ TQColor Element::currentColor( const double temp )
 		color= Prefs::color_vapor();
 	}
 	else
-		color = Qt::lightGray;
+		color = TQt::lightGray;
 
 	return color;
 }
@@ -329,23 +329,23 @@ void Element::drawGradient( TQPainter* p, const TQString& value, const TQColor&
 	p->setPen( c );
 	p->fillRect( X, Y,ELEMENTSIZE,ELEMENTSIZE, c );
 	
-	p->setPen( Qt::black );
+	p->setPen( TQt::black );
 	TQFont symbol_font = p->font();
 	TQFont f = p->font();
 
 	f.setPointSize( KalziumUtils::maxSize(value, TQRect( X,Y+ELEMENTSIZE-h_small, ELEMENTSIZE, h_small ),f, p ) );
 	p->setFont( f );
 
-	p->drawText( X,Y+ELEMENTSIZE-h_small , ELEMENTSIZE, h_small,Qt::AlignCenter, value );
+	p->drawText( X,Y+ELEMENTSIZE-h_small , ELEMENTSIZE, h_small,TQt::AlignCenter, value );
 
 	const TQRect rect = TQRect( X,Y,ELEMENTSIZE-2,ELEMENTSIZE-10 );
 	int goodsize = KalziumUtils::maxSize( symbol(), rect, symbol_font, p );
 	symbol_font.setPointSize( goodsize );
 	p->setFont( symbol_font );
-	p->drawText( X+1,Y+5, ELEMENTSIZE-2,ELEMENTSIZE-10,Qt::AlignCenter, symbol() );
+	p->drawText( X+1,Y+5, ELEMENTSIZE-2,ELEMENTSIZE-10,TQt::AlignCenter, symbol() );
 	
 	//border
-	p->setPen( Qt::black );
+	p->setPen( TQt::black );
 	p->drawRect( X, Y,ELEMENTSIZE+1,ELEMENTSIZE+1);
 }
 
@@ -357,18 +357,18 @@ void Element::drawGrayedOut( TQPainter *p )
 	//The Y-coordinate
 	int Y = yPos();
 	
-	p->fillRect( X, Y,ELEMENTSIZE,ELEMENTSIZE, Qt::lightGray );
+	p->fillRect( X, Y,ELEMENTSIZE,ELEMENTSIZE, TQt::lightGray );
 	
-	p->setPen( Qt::darkGray );
+	p->setPen( TQt::darkGray );
 	
 	TQFont symbol_font = p->font();
 	const TQRect rect = TQRect( X,Y,ELEMENTSIZE-2,ELEMENTSIZE-10 );
 	int goodsize = KalziumUtils::maxSize( symbol(), rect, symbol_font, p );
 	symbol_font.setPointSize( goodsize );
 	p->setFont( symbol_font );
-	p->drawText( X+1,Y+5, ELEMENTSIZE-2,ELEMENTSIZE-10,Qt::AlignCenter, symbol() );
+	p->drawText( X+1,Y+5, ELEMENTSIZE-2,ELEMENTSIZE-10,TQt::AlignCenter, symbol() );
 
-	p->setPen( Qt::black );
+	p->setPen( TQt::black );
 	p->drawRect( X, Y,ELEMENTSIZE+1,ELEMENTSIZE+1);
 }
 
@@ -385,7 +385,7 @@ void Element::drawSelf( TQPainter* p, bool simple, bool isCrystal )
 
 	p->setPen( elementColor() );
 	p->fillRect( X, Y,ELEMENTSIZE,ELEMENTSIZE, elementColor() );
-	p->setPen( Qt::black );
+	p->setPen( TQt::black );
 	
 	TQString text;
 	TQFont symbol_font = p->font();
@@ -399,9 +399,9 @@ void Element::drawSelf( TQPainter* p, bool simple, bool isCrystal )
 	p->setFont( symbol_font );
 	
 	if ( !simple )
-		p->drawText( X+1,Y+5, ELEMENTSIZE-2,max,Qt::AlignCenter, symbol() );
+		p->drawText( X+1,Y+5, ELEMENTSIZE-2,max,TQt::AlignCenter, symbol() );
 	else
-		p->drawText( X+1,Y+5, ELEMENTSIZE-2,max,Qt::AlignHCenter, symbol() );
+		p->drawText( X+1,Y+5, ELEMENTSIZE-2,max,TQt::AlignHCenter, symbol() );
 	
 	TQFont f = p->font();
 
@@ -441,11 +441,11 @@ void Element::drawSelf( TQPainter* p, bool simple, bool isCrystal )
 		}
 		else
 			text = KalziumUtils::localizedValue( KalziumUtils::strippedValue( mass( ) ), 6 );
-		p->drawText( X+2,Y ,ELEMENTSIZE-4 ,h_small,Qt::AlignCenter, text );
+		p->drawText( X+2,Y ,ELEMENTSIZE-4 ,h_small,TQt::AlignCenter, text );
 	}
 	
 	text = TQString::number( number() );
-	p->drawText( X+2,Y+ELEMENTSIZE-h_small , ELEMENTSIZE-4, h_small,Qt::AlignCenter, text );
+	p->drawText( X+2,Y+ELEMENTSIZE-h_small , ELEMENTSIZE-4, h_small,TQt::AlignCenter, text );
 	
 	p->drawRect( X, Y,ELEMENTSIZE+1,ELEMENTSIZE+1);
 }
diff --git a/kalzium/src/elementdataviewer.cpp b/kalzium/src/elementdataviewer.cpp
index 108889cc..d14eb343 100644
--- a/kalzium/src/elementdataviewer.cpp
+++ b/kalzium/src/elementdataviewer.cpp
@@ -30,18 +30,18 @@
 #include <tqcheckbox.h>
 #include <tqlabel.h>
 
-ElementDataViewer::ElementDataViewer( TQWidget *parent, const char* name )
+ElementDataViewer::ElementDataViewer( TQWidget *tqparent, const char* name )
 	: KDialogBase( KDialogBase::Plain, 
 			i18n( "Plot Data") , 
 			Help | User1 | Close,
 			User1,
-			parent, name )
+			tqparent, name )
 {
 	d = KalziumDataObject::instance();
 
 	yData = new AxisData();
 	
-	TQHBoxLayout *layout = new TQHBoxLayout(plainPage(), 0, KDialog::spacingHint() );
+	TQHBoxLayout *tqlayout = new TQHBoxLayout(plainPage(), 0, KDialog::spacingHint() );
 
 	m_pPlotSetupWidget = new PlotSetupWidget( plainPage(), "plotsetup" );	
 	m_pPlotSetupWidget->from->setMaxValue( d->numberOfElements() - 1 );
@@ -51,10 +51,10 @@ ElementDataViewer::ElementDataViewer( TQWidget *parent, const char* name )
 	m_pPlotWidget->setMinimumWidth( 200 );
 	m_pPlotWidget->resize( 400, m_pPlotWidget->height() );
 
-	layout->addWidget( m_pPlotSetupWidget );
-	layout->addWidget( m_pPlotWidget );
-	layout->setStretchFactor( m_pPlotSetupWidget, 0 );
-	layout->setStretchFactor( m_pPlotWidget, 1 );
+	tqlayout->addWidget( m_pPlotSetupWidget );
+	tqlayout->addWidget( m_pPlotWidget );
+	tqlayout->setStretchFactor( m_pPlotSetupWidget, 0 );
+	tqlayout->setStretchFactor( m_pPlotWidget, 1 );
 
 	// setup the list of names
 	EList::iterator it = d->ElementList.begin();
@@ -69,7 +69,7 @@ ElementDataViewer::ElementDataViewer( TQWidget *parent, const char* name )
 	setButtonText( User1, i18n("&Plot") );
 
 	m_actionCollection = new KActionCollection(this);
-	KStdAction::quit(this, TQT_SLOT(slotClose()), m_actionCollection);	
+	KStdAction::quit(TQT_TQOBJECT(this), TQT_SLOT(slotClose()), m_actionCollection);	
 
 	connect ( m_pPlotSetupWidget->KCB_y,         TQT_SIGNAL( activated(int) ),
 			  this,                              TQT_SLOT( drawPlot()) );
@@ -294,7 +294,7 @@ void ElementDataViewer::drawPlot()
 	/*
 	 * reserve the memory for the KPlotObjects
 	 */
-	//TODO QT4 replace TQMemArray with QVector
+	//TODO QT4 replace TQMemArray with TQVector
 	TQMemArray<KPlotObject*> dataPoint(num);
 	TQMemArray<KPlotObject*> dataPointLabel(num);
 
diff --git a/kalzium/src/elementdataviewer.h b/kalzium/src/elementdataviewer.h
index 76fea4b1..062377ae 100644
--- a/kalzium/src/elementdataviewer.h
+++ b/kalzium/src/elementdataviewer.h
@@ -96,9 +96,10 @@ class AxisData
 class ElementDataViewer : public KDialogBase
 {
 	Q_OBJECT
+  TQ_OBJECT
 
 	public:
-		ElementDataViewer( TQWidget *parent=0 , const char *name =0 );
+		ElementDataViewer( TQWidget *tqparent=0 , const char *name =0 );
 
 		/**
 		 * the AxixData for the y-Axis
diff --git a/kalzium/src/eqchemview.cpp b/kalzium/src/eqchemview.cpp
index fee6e9c7..4a22cd20 100644
--- a/kalzium/src/eqchemview.cpp
+++ b/kalzium/src/eqchemview.cpp
@@ -46,11 +46,11 @@ extern "C" {
 char* solve_equation(const char *) { return NULL; }
 #endif
 
-eqchemView::eqchemView(TQWidget *parent) : TQWidget(parent)
+eqchemView::eqchemView(TQWidget *tqparent) : TQWidget(tqparent)
 {
     settingsChanged();
 
-    TQGridLayout *l = new TQGridLayout(this, 2, 2, 11, 6, "eqchemView::eqchemView layout");
+    TQGridLayout *l = new TQGridLayout(this, 2, 2, 11, 6, "eqchemView::eqchemView tqlayout");
 
     m_eqResult = new EqResult(this);
     m_eqedit = new KLineEdit(this);
@@ -89,8 +89,8 @@ void eqchemView::clear()
 void eqchemView::compute()
 {
     TQString equation( m_eqedit->text() );
-    equation.replace("+", "+");
-    equation.replace("->", " -> ");
+    equation.tqreplace("+", "+");
+    equation.tqreplace("->", " -> ");
     equation.append(" ");
     equation.prepend(" ");
     
@@ -104,13 +104,13 @@ void eqchemView::compute()
     m_eqResult->add( equation, disp );
 }
 
-EQChemDialog::EQChemDialog( TQWidget *parent )
-	: KDialogBase(parent, "EQChemDialog", true, i18n( "Solve Chemical Equations" ),
+ETQChemDialog::ETQChemDialog( TQWidget *tqparent )
+	: KDialogBase(tqparent, "ETQChemDialog", true, i18n( "Solve Chemical Equations" ),
 			KDialogBase::Apply|KDialogBase::Close|KDialogBase::Help, KDialogBase::Apply, true )
 {
 }
 
-void EQChemDialog::slotHelp()
+void ETQChemDialog::slotHelp()
 {
 	emit helpClicked();
 	if ( kapp )
diff --git a/kalzium/src/eqchemview.h b/kalzium/src/eqchemview.h
index 0e1ad686..85a9dda8 100644
--- a/kalzium/src/eqchemview.h
+++ b/kalzium/src/eqchemview.h
@@ -18,8 +18,8 @@
  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.           *
  ***************************************************************************/
 
-#ifndef _EQCHEMVIEW_H_
-#define _EQCHEMVIEW_H_
+#ifndef _ETQCHEMVIEW_H_
+#define _ETQCHEMVIEW_H_
 
 #include <tqwidget.h>
 #include <kdialogbase.h>
@@ -40,14 +40,15 @@ class KPushButton;
  * @author Thomas Nagy <tnagy2^8\@yahoo.fr>
  * @version 0.1
  */
-class eqchemView : public QWidget
+class eqchemView : public TQWidget
 {
     Q_OBJECT
+  TQ_OBJECT
 public:
 	/**
 	 * Default constructor
 	 */
-    eqchemView(TQWidget *parent);
+    eqchemView(TQWidget *tqparent);
 
 	/**
 	 * Destructor
@@ -82,17 +83,18 @@ private:
 /**
  * @author Carsten Niehaus
  */
-class EQChemDialog : public KDialogBase
+class ETQChemDialog : public KDialogBase
 {
 	Q_OBJECT
+  TQ_OBJECT
 
 	public: 
 		/**
 		 * public constructor
 		 *
-		 * @param parent the parent widget
+		 * @param tqparent the tqparent widget
 		 */
-		EQChemDialog( TQWidget *parent );
+		ETQChemDialog( TQWidget *tqparent );
 
 	private slots:
 		/**
@@ -101,4 +103,4 @@ class EQChemDialog : public KDialogBase
 		void slotHelp();
 };
 
-#endif // _EQCHEMVIEW_H_
+#endif // _ETQCHEMVIEW_H_
diff --git a/kalzium/src/eqresult.cpp b/kalzium/src/eqresult.cpp
index c128c93e..a4aad576 100644
--- a/kalzium/src/eqresult.cpp
+++ b/kalzium/src/eqresult.cpp
@@ -47,7 +47,7 @@ TQListBoxItem ( listBox )
 
 void QuestionItem::paint( TQPainter* painter )
 {
-    int tf = Qt::NoAccel | Qt::SingleLine | Qt::AlignVCenter;
+    int tf = TQt::NoAccel | TQt::SingleLine | TQt::AlignVCenter;
 
     TQRect r ( 0, 0, listBox()->contentsWidth(), height( listBox() ) );
     painter->fillRect( r, m_bgcolor );
@@ -61,7 +61,7 @@ void AnswerItem::paint( TQPainter* painter )
     TQRect r ( 0, 0, listBox()->contentsWidth(), height( listBox() ) );
     painter->fillRect( r, m_bgcolor );
 
-    TQColorGroup cg = listBox()->colorGroup();
+    TQColorGroup cg = listBox()->tqcolorGroup();
     cg.setColor( TQColorGroup::Background, m_bgcolor );
 
     m_richtext->draw(painter, 0, 0, r, cg );
@@ -89,7 +89,7 @@ void AnswerItem::checkSize()
     m_richtext->setWidth(   (t1>t2)?t1:t2   );
 }
 
-EqResult::EqResult(TQWidget *parent) : TQListBox(parent)
+EqResult::EqResult(TQWidget *tqparent) : TQListBox(tqparent)
 {
     m_alternate_color = false;
     setMinimumWidth(140);
@@ -101,7 +101,7 @@ EqResult::~EqResult()
 
 void EqResult::add(const TQString & question, const TQString & answer)
 {
-    TQColor bgcolor = colorGroup().base();
+    TQColor bgcolor = tqcolorGroup().base();
 
     if ( m_alternate_color )
 	bgcolor = bgcolor.dark( 120 );
diff --git a/kalzium/src/eqresult.h b/kalzium/src/eqresult.h
index 39e7d85a..2b862d3b 100644
--- a/kalzium/src/eqresult.h
+++ b/kalzium/src/eqresult.h
@@ -18,8 +18,8 @@
  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.             *
  ***************************************************************************/
 
-#ifndef _EQRESULT_H_
-#define _EQRESULT_H_
+#ifndef _ETQRESULT_H_
+#define _ETQRESULT_H_
 
 #include <tqlistbox.h>
 #include <tqsimplerichtext.h>
@@ -27,7 +27,7 @@
 /**
  * @author Thomas Nagy
  */
-class QuestionItem : public QListBoxItem
+class QuestionItem : public TQListBoxItem
 {
     public:
 	QuestionItem( TQListBox*, const TQString&, TQColor bg );
@@ -43,7 +43,7 @@ class QuestionItem : public QListBoxItem
 /**
  * @author Thomas Nagy
  */
-class AnswerItem : public QListBoxItem
+class AnswerItem : public TQListBoxItem
 {
     public:
 	AnswerItem(  TQListBox*, const TQString&, const TQString&, TQColor bg );
@@ -69,12 +69,13 @@ class AnswerItem : public QListBoxItem
 /**
  * @author Thomas Nagy
  */
-class EqResult : public QListBox
+class EqResult : public TQListBox
 {
     Q_OBJECT
+  TQ_OBJECT
 public:
     
-    EqResult(TQWidget *parent);
+    EqResult(TQWidget *tqparent);
     ~EqResult();
 
 public slots:
@@ -86,5 +87,5 @@ private:
     bool m_alternate_color;
 };
 
-#endif // _EQRESULT_H_
+#endif // _ETQRESULT_H_
 
diff --git a/kalzium/src/isotope.cpp b/kalzium/src/isotope.cpp
index 268e99d4..3b2dbe63 100644
--- a/kalzium/src/isotope.cpp
+++ b/kalzium/src/isotope.cpp
@@ -52,24 +52,24 @@ TQString Isotope::halflifeAsString()
 	if ( !seconds() )//years
 	{
 		if ( m_halflife > 1000000 )
-			halflife = i18n("%1 million years").arg( KalziumUtils::localizedValue( m_halflife/1000000.0, 2 ) );
+			halflife = i18n("%1 million years").tqarg( KalziumUtils::localizedValue( m_halflife/1000000.0, 2 ) );
 		if ( m_halflife > 1000000000 )
-			halflife = i18n("%1 billion years").arg( KalziumUtils::localizedValue( m_halflife/1000000000.0, 2 ) );
+			halflife = i18n("%1 billion years").tqarg( KalziumUtils::localizedValue( m_halflife/1000000000.0, 2 ) );
 		else
-			halflife = i18n("%1 years").arg( KalziumUtils::localizedValue( m_halflife, 2 ) );
+			halflife = i18n("%1 years").tqarg( KalziumUtils::localizedValue( m_halflife, 2 ) );
 	}
 	else
 	{
 		if ( m_halflife < 120 )
-			halflife = i18n("%1 seconds").arg( KalziumUtils::localizedValue( m_halflife, 2 ) );
+			halflife = i18n("%1 seconds").tqarg( KalziumUtils::localizedValue( m_halflife, 2 ) );
 		else if ( m_halflife > 1000 )
-			halflife = i18n("%1 minutes").arg( KalziumUtils::localizedValue( m_halflife/60.0, 2 ) );
+			halflife = i18n("%1 minutes").tqarg( KalziumUtils::localizedValue( m_halflife/60.0, 2 ) );
 		else if ( m_halflife > 3600 )
-			halflife = i18n("%1 hours").arg( KalziumUtils::localizedValue( m_halflife/( 60*60 ), 2 ) );
+			halflife = i18n("%1 hours").tqarg( KalziumUtils::localizedValue( m_halflife/( 60*60 ), 2 ) );
 		if ( m_halflife > 86400 )   //one day
-			halflife = i18n("%1 days").arg( KalziumUtils::localizedValue( m_halflife/( 60*60*24 ), 2 ) );
+			halflife = i18n("%1 days").tqarg( KalziumUtils::localizedValue( m_halflife/( 60*60*24 ), 2 ) );
 		if ( m_halflife > ( 31536000 * 2 ) ) //two year
-			halflife = i18n("%1 years").arg( KalziumUtils::localizedValue( m_halflife/( 3600.0*365 ), 2 ) );
+			halflife = i18n("%1 years").tqarg( KalziumUtils::localizedValue( m_halflife/( 3600.0*365 ), 2 ) );
 	}
 
 	return halflife;
diff --git a/kalzium/src/kalzium.cpp b/kalzium/src/kalzium.cpp
index 84c2c984..747c230f 100644
--- a/kalzium/src/kalzium.cpp
+++ b/kalzium/src/kalzium.cpp
@@ -74,10 +74,10 @@ Kalzium::Kalzium()
 	m_infoDialog = 0;
 	m_toolboxCurrent = 0;
 
-	connect( m_PerodicTableView, TQT_SIGNAL( ElementClicked( int ) ), this, TQT_SLOT( openInformationDialog( int ) ));
-	connect( m_PerodicTableView, TQT_SIGNAL( MouseOver( int ) ), this, TQT_SLOT( slotStatusbar( int ) ));
+	connect( m_PerodicTableView, TQT_SIGNAL( ElementClicked( int ) ), TQT_TQOBJECT(this), TQT_SLOT( openInformationDialog( int ) ));
+	connect( m_PerodicTableView, TQT_SIGNAL( MouseOver( int ) ), TQT_TQOBJECT(this), TQT_SLOT( slotStatusbar( int ) ));
 	
-	// layouting
+	// tqlayouting
 	setCentralWidget( centralWidget );
 	centralWidget->show();
 
@@ -107,14 +107,14 @@ Kalzium::Kalzium()
 
 void Kalzium::setupActions()
 {
-	m_actionNoScheme = new KToggleAction(i18n("&No Color Scheme"), 0, this, TQT_SLOT(slotNoLook()), actionCollection(), "view_look_noscheme");
+	m_actionNoScheme = new KToggleAction(i18n("&No Color Scheme"), 0, TQT_TQOBJECT(this), TQT_SLOT(slotNoLook()), actionCollection(), "view_look_noscheme");
 
 	// the actions for the color schemes
-	m_actionGroups = new KToggleAction(i18n("Show &Groups"), 0, this, TQT_SLOT(slotLookGroups()), actionCollection(), "view_look_groups");
-	m_actionBlocks = new KToggleAction(i18n("Show &Blocks"), 0, this, TQT_SLOT(slotLookBlocks()), actionCollection(), "view_look_blocks");
-	m_actionAcid = new KToggleAction(i18n("Show &Acid Behavior"), 0, this, TQT_SLOT(slotLookAcidBehavior()), actionCollection(), "view_look_acid");
-	m_actionFamily = new KToggleAction(i18n("Show &Family"), 0, this, TQT_SLOT(slotLookFamily()), actionCollection(), "view_look_family");
-	m_actionCrystal = new KToggleAction(i18n("Show &Crystal Structures"), 0, this, TQT_SLOT(slotLookCrystal()), actionCollection(), "view_look_crystal");
+	m_actionGroups = new KToggleAction(i18n("Show &Groups"), 0, TQT_TQOBJECT(this), TQT_SLOT(slotLookGroups()), actionCollection(), "view_look_groups");
+	m_actionBlocks = new KToggleAction(i18n("Show &Blocks"), 0, TQT_TQOBJECT(this), TQT_SLOT(slotLookBlocks()), actionCollection(), "view_look_blocks");
+	m_actionAcid = new KToggleAction(i18n("Show &Acid Behavior"), 0, TQT_TQOBJECT(this), TQT_SLOT(slotLookAcidBehavior()), actionCollection(), "view_look_acid");
+	m_actionFamily = new KToggleAction(i18n("Show &Family"), 0, TQT_TQOBJECT(this), TQT_SLOT(slotLookFamily()), actionCollection(), "view_look_family");
+	m_actionCrystal = new KToggleAction(i18n("Show &Crystal Structures"), 0, TQT_TQOBJECT(this), TQT_SLOT(slotLookCrystal()), actionCollection(), "view_look_crystal");
 
 	//the actions for switching PerodicTableView
 	TQStringList gradientlist;
@@ -127,9 +127,9 @@ void Kalzium::setupActions()
 	gradientlist.append(i18n("Melting Point"));
 	gradientlist.append(i18n("Electronegativity"));
 	gradientlist.append(i18n("Electron Affinity"));
-	gradient_action = new KSelectAction(i18n("&Gradient"), 0, this, 0, actionCollection(), "view_look_gradmenu");
+	gradient_action = new KSelectAction(i18n("&Gradient"), 0, TQT_TQOBJECT(this), 0, actionCollection(), "view_look_gradmenu");
 	gradient_action->setItems(gradientlist);
-	connect (gradient_action, TQT_SIGNAL(activated(int)), this, TQT_SLOT(slotSwitchtoGradient(int)));
+	connect (gradient_action, TQT_SIGNAL(activated(int)), TQT_TQOBJECT(this), TQT_SLOT(slotSwitchtoGradient(int)));
 
 	// the actions for switching PerodicTableView
 	TQStringList numlist;
@@ -137,28 +137,28 @@ void Kalzium::setupActions()
 	numlist.append(i18n("Show &IUPAC"));
 	numlist.append(i18n("Show &CAS"));
 	numlist.append(i18n("Show &Old IUPAC"));
-	numeration_action = new KSelectAction (i18n("&Numeration"), 0, this, 0, actionCollection(), "view_numerationtype");
+	numeration_action = new KSelectAction (i18n("&Numeration"), 0, TQT_TQOBJECT(this), 0, actionCollection(), "view_numerationtype");
 	numeration_action->setItems(numlist);
 	numeration_action->setCurrentItem(Prefs::numeration()); 
-	connect (numeration_action, TQT_SIGNAL(activated(int)), this, TQT_SLOT(slotSwitchtoNumeration(int)));
+	connect (numeration_action, TQT_SIGNAL(activated(int)), TQT_TQOBJECT(this), TQT_SLOT(slotSwitchtoNumeration(int)));
 
-	m_SidebarAction = new KAction(i18n("Show &Sidebar"), "sidebar", 0, this, TQT_SLOT(slotShowHideSidebar()), actionCollection(), "view_sidebar");
+	m_SidebarAction = new KAction(i18n("Show &Sidebar"), "sidebar", 0, TQT_TQOBJECT(this), TQT_SLOT(slotShowHideSidebar()), actionCollection(), "view_sidebar");
 	
 #ifdef HAVE_FACILE
-	m_EQSolverAction = new KAction(i18n("&Equation Solver..."), "eqchem", 0, this, TQT_SLOT(slotShowEQSolver()), actionCollection(), "tools_eqsolver");
+	m_ETQSolverAction = new KAction(i18n("&Equation Solver..."), "eqchem", 0, TQT_TQOBJECT(this), TQT_SLOT(slotShowETQSolver()), actionCollection(), "tools_eqsolver");
 #endif
 	
 	// tools actions
-	m_pPlotAction = new KAction(i18n("&Plot Data..."), "plot", 0, this, TQT_SLOT(slotPlotData()), actionCollection(), "tools_plotdata");
-	m_pGlossaryAction = new KAction(i18n("&Glossary..."), "glossary", 0, this, TQT_SLOT(slotGlossary()), actionCollection(), "tools_glossary");
+	m_pPlotAction = new KAction(i18n("&Plot Data..."), "plot", 0, TQT_TQOBJECT(this), TQT_SLOT(slotPlotData()), actionCollection(), "tools_plotdata");
+	m_pGlossaryAction = new KAction(i18n("&Glossary..."), "glossary", 0, TQT_TQOBJECT(this), TQT_SLOT(slotGlossary()), actionCollection(), "tools_glossary");
 
 	// other period view options
-	m_pLegendAction = new KAction(i18n("Show &Legend"), "legend", 0, this, TQT_SLOT(slotShowLegend()), actionCollection(), "view_legend");
-	m_pTooltipAction = new KAction(i18n("Show &Tooltip"), "tooltip", 0, this, TQT_SLOT(slotEnableTooltips()), actionCollection(), "view_tooltip");
+	m_pLegendAction = new KAction(i18n("Show &Legend"), "legend", 0, TQT_TQOBJECT(this), TQT_SLOT(slotShowLegend()), actionCollection(), "view_legend");
+	m_pTooltipAction = new KAction(i18n("Show &Tooltip"), "tooltip", 0, TQT_TQOBJECT(this), TQT_SLOT(slotEnableTooltips()), actionCollection(), "view_tooltip");
 	
 	// the standard actions
-	KStdAction::preferences(this, TQT_SLOT(showSettingsDialog()), actionCollection());
-	KStdAction::quit( kapp, TQT_SLOT (closeAllWindows()),actionCollection() );
+	KStdAction::preferences(TQT_TQOBJECT(this), TQT_SLOT(showSettingsDialog()), actionCollection());
+	KStdAction::quit(TQT_TQOBJECT(kapp), TQT_SLOT (closeAllWindows()),actionCollection() );
 
 	slotShowScheme( Prefs::colorschemebox() );
 	slotSwitchtoNumeration( Prefs::numeration() );
@@ -212,8 +212,8 @@ void Kalzium::setupSidebars()
 	TQVBoxLayout *lay = new TQVBoxLayout( fake, 5 );
 	lay->activate();
 	m_detailWidget = new DetailedGraphicalOverview( fake, "DetailedGraphicalOverview" );
-	m_detailWidget->setMinimumSize( 200, m_detailWidget->minimumSize().height() );
-	connect( m_PerodicTableView, TQT_SIGNAL( MouseOver( int ) ), this, TQT_SLOT( slotSelectedNumber( int ) ));
+	m_detailWidget->setMinimumSize( 200, m_detailWidget->tqminimumSize().height() );
+	connect( m_PerodicTableView, TQT_SIGNAL( MouseOver( int ) ), TQT_TQOBJECT(this), TQT_SLOT( slotSelectedNumber( int ) ));
  	lay->addWidget( m_detailWidget );
 	lay->addItem( new TQSpacerItem( 10, 10, TQSizePolicy::Fixed, TQSizePolicy::MinimumExpanding ) );
 	m_toolbox->addItem( fake, SmallIcon( "overview" ), i18n( "Overview" ) );
@@ -235,13 +235,13 @@ void Kalzium::setupSidebars()
 	         m_PerodicTableView, TQT_SLOT( setTemperature( int ) ) );
 	m_toolbox->addItem( m_somWidget, SmallIcon( "statematter" ), i18n( "State of Matter" ) );
 	
-	connect( m_toolbox, TQT_SIGNAL( currentChanged( int ) ), this, TQT_SLOT( slotToolboxCurrentChanged( int ) ) );
+	connect( m_toolbox, TQT_SIGNAL( currentChanged( int ) ), TQT_TQOBJECT(this), TQT_SLOT( slotToolboxCurrentChanged( int ) ) );
 
 	moveDockWindow( m_dockWin, DockLeft );
 	setDockEnabled( /*m_dockWin, */DockTop, false );
 	setDockEnabled( /*m_dockWin, */DockBottom, false );
 	m_dockWin->hide();
-	connect( m_dockWin, TQT_SIGNAL(visibilityChanged(bool)), this, TQT_SLOT(slotSidebarVisibilityChanged(bool)));
+	connect( m_dockWin, TQT_SIGNAL(visibilityChanged(bool)), TQT_TQOBJECT(this), TQT_SLOT(slotSidebarVisibilityChanged(bool)));
 
 }
 
@@ -250,10 +250,10 @@ void Kalzium::slotGlossary()
 	m_glossarydlg->show();
 }
 
-void Kalzium::slotShowEQSolver()
+void Kalzium::slotShowETQSolver()
 {
 #ifdef HAVE_FACILE
-	EQChemDialog *dlg = new EQChemDialog( this );
+	ETQChemDialog *dlg = new ETQChemDialog( this );
 	
 	TQWidget *page = new TQWidget( dlg );
 	dlg->setMainWidget( page );
@@ -422,7 +422,7 @@ void Kalzium::setupStatusBar()
 void Kalzium::slotStatusbar( int num )
 {
 	Element *e = KalziumDataObject::instance()->element( num );
-	statusBar()->changeItem( i18n( "For example: \"Carbon (6), Mass: 12.0107 u\"", "%1 (%2), Mass: %3 u" ).arg( e->elname() ).arg(e->number() ).arg( KalziumUtils::localizedValue( e->mass(), 6 ) ) , IDS_ELEMENTINFO );
+	statusBar()->changeItem( i18n( "For example: \"Carbon (6), Mass: 12.0107 u\"", "%1 (%2), Mass: %3 u" ).tqarg( e->elname() ).tqarg(e->number() ).tqarg( KalziumUtils::localizedValue( e->mass(), 6 ) ) , IDS_ELEMENTINFO );
 }
 
 void Kalzium::openInformationDialog( int number )
diff --git a/kalzium/src/kalzium.h b/kalzium/src/kalzium.h
index 1a726fed..44b2583e 100644
--- a/kalzium/src/kalzium.h
+++ b/kalzium/src/kalzium.h
@@ -46,6 +46,7 @@ class GlossaryDialog;
 class Kalzium : public KMainWindow
 {
 	Q_OBJECT
+  TQ_OBJECT
 	public:
 		/**
 		 * Default Constructor
@@ -95,7 +96,7 @@ class Kalzium : public KMainWindow
 		KAction *m_pTooltipAction;
 		KAction *m_pLegendAction;
 		KAction *m_SidebarAction;
-		KAction *m_EQSolverAction;
+		KAction *m_ETQSolverAction;
 
 		KToggleAction *m_actionNoScheme;
 		KToggleAction *m_actionGroups;
@@ -105,7 +106,7 @@ class Kalzium : public KMainWindow
 		KToggleAction *m_actionCrystal;
 		
 		/**
-		 * the layout of the central Widget ( CentralWidget )
+		 * the tqlayout of the central Widget ( CentralWidget )
 		 */
 		TQVBoxLayout *m_pCentralLayout;
 
@@ -138,7 +139,7 @@ class Kalzium : public KMainWindow
 		 */
 		void slotShowScheme(int);
 
-		void slotShowEQSolver();
+		void slotShowETQSolver();
 		
 		void slotShowLegend();
 		
diff --git a/kalzium/src/kalziumdataobject.cpp b/kalzium/src/kalziumdataobject.cpp
index a759fee2..f25cbfc4 100644
--- a/kalzium/src/kalziumdataobject.cpp
+++ b/kalzium/src/kalziumdataobject.cpp
@@ -46,29 +46,29 @@ KalziumDataObject::KalziumDataObject()
 	KURL url;
 	url.setPath( locate("data", "kalzium/data/"));
 	url.setFileName( "data.xml" );
-	TQFile layoutFile( url.path() );
+	TQFile tqlayoutFile( url.path() );
 
-	if (!layoutFile.exists())
+	if (!tqlayoutFile.exists())
 	{
 		kdDebug() << "data.xml not found, exiting" << endl;
 		kapp->exit(0);
 		return;
 	}
 
-	if (!layoutFile.open(IO_ReadOnly))
+	if (!tqlayoutFile.open(IO_ReadOnly))
 	{
 		kdDebug() << "data.xml IO-error" << endl;
 		return;
 	}
 
 	// Check if the document is well-formed
-	if (!doc.setContent(&layoutFile))
+	if (!doc.setContent(&tqlayoutFile))
 	{
 		kdDebug() << "wrong xml" << endl;
-		layoutFile.close();
+		tqlayoutFile.close();
 		return;
 	}
-	layoutFile.close();
+	tqlayoutFile.close();
 
 	ElementList = readData( doc );
 	m_numOfElements = ElementList.count();
diff --git a/kalzium/src/kalziumtip.cpp b/kalzium/src/kalziumtip.cpp
index ba2a8252..794c9f25 100644
--- a/kalzium/src/kalziumtip.cpp
+++ b/kalzium/src/kalziumtip.cpp
@@ -38,9 +38,9 @@
 #include <klocale.h>
 #include <kstandarddirs.h>
 
-KalziumTip::KalziumTip( TQWidget * parent, const char * name, WFlags f ) : TQWidget( parent, name, f ) 
+KalziumTip::KalziumTip( TQWidget * tqparent, const char * name, WFlags f ) : TQWidget( tqparent, name, f ) 
 {
-	setFocusPolicy(NoFocus); //the widget don't get the keyboard focus
+	setFocusPolicy(TQ_NoFocus); //the widget don't get the keyboard focus
 	setBackgroundMode(NoBackground); // widget has no background
 	resize(0,0);
 	hide(); //initailly hide it
@@ -54,8 +54,8 @@ KalziumTip::KalziumTip( TQWidget * parent, const char * name, WFlags f ) : TQWid
 void KalziumTip::showTip( TQPoint mouse, Element* element, int visibleWidth, int visibleHeight )
 {
 	TQWidget *p = 0;
-        if ( dynamic_cast<TQWidget*>( parent() ) )
-                p = static_cast<TQWidget*>( parent() );
+        if ( dynamic_cast<TQWidget*>( tqparent() ) )
+                p = TQT_TQWIDGET( tqparent() );
 
         if ( p )
         {
@@ -82,8 +82,8 @@ void KalziumTip::showTip( TQPoint mouse, Element* element, int visibleWidth, int
 	if( element == m_tippedElement )
 	{
 		// Avoid moving out of the current screen
-		if (m_mousePointer.x()+width() > qApp->desktop()->width())
-				m_mousePointer.setX(qApp->desktop()->width() - width());
+		if (m_mousePointer.x()+width() > tqApp->desktop()->width())
+				m_mousePointer.setX(tqApp->desktop()->width() - width());
 
 		move(m_mousePointer); //do not paint again if already painted
 	}
@@ -113,7 +113,7 @@ void KalziumTip::paintEvent(TQPaintEvent* e)
 
 void KalziumTip::mouseMoveEvent(TQMouseEvent * e)
 {
-	// delegate the mouse move event to the parent (actually the elements table)
+	// delegate the mouse move event to the tqparent (actually the elements table)
 	// so that this tooltip doesn't stop to be updated
 	e->ignore();
 }
@@ -128,10 +128,10 @@ void KalziumTip::display()
 	TQString elementname = m_tippedElement->elname();
 	
 	TQString number = i18n( "Number: %1" )
-			.arg( TQString::number(m_tippedElement->number()) );
+			.tqarg( TQString::number(m_tippedElement->number()) );
 	
 	TQString mass = i18n( "Mass: %1" )
-			.arg( KalziumUtils::localizedValue(m_tippedElement->mass(), 6) );
+			.tqarg( KalziumUtils::localizedValue(m_tippedElement->mass(), 6) );
 
 	m_richText = new TQSimpleRichText("<qt><h1>" + elementname + "</h1><p>"
 						    + number + "</p><p>"
@@ -139,7 +139,7 @@ void KalziumTip::display()
 
 	m_richText->setWidth(400);
 
-	m_maskEffect = isVisible() ? Plain : Dissolve;
+	m_tqmaskEffect = isVisible() ? Plain : Dissolve;
     	m_dissolveSize = 24;
     	m_dissolveDelta = -1;
 
@@ -167,18 +167,18 @@ void KalziumTip::displayInternal()
 	textRect.addCoords(0,0,2,2);
 
 	int margin = KDialog::marginHint();
-	int height = QMAX(m_icon.height(), textRect.height()) + 2 * margin;
+	int height = TQMAX(m_icon.height(), textRect.height()) + 2 * margin;
     	int textX = 2 + m_icon.width() + 2 * margin;
     	int width = textX + textRect.width() + margin;
     	int textY = (height - textRect.height()) / 2;
 
-	//resize pixmap, mask and widget
-	m_mask.resize(width, height);
+	//resize pixmap, tqmask and widget
+	m_tqmask.resize(width, height);
 	m_pixmap.resize(width, height);
 	resize(width, height);
 
-	// create and set transparency mask
-    	switch(m_maskEffect)
+	// create and set transparency tqmask
+    	switch(m_tqmaskEffect)
     	{
         	case Plain:
             		plainMask();
@@ -191,7 +191,7 @@ void KalziumTip::displayInternal()
 
 	// draw background
     	TQPainter bufferPainter(&m_pixmap);
-    	bufferPainter.setPen(Qt::black);
+    	bufferPainter.setPen(TQt::black);
     	bufferPainter.setBrush(backgroundColor());
     	bufferPainter.drawRoundRect(0, 0, width, height,
                                 1600 / width, 1600 / height);
@@ -206,32 +206,32 @@ void KalziumTip::displayInternal()
     	}
 	
 	// draw text shadow
-        TQColorGroup cg = colorGroup();
+        TQColorGroup cg = tqcolorGroup();
         cg.setColor(TQColorGroup::Text, cg.background().dark(115));
         int shadowOffset = TQApplication::reverseLayout() ? -1 : 1;
         m_richText->draw(&bufferPainter, 5 + textX + shadowOffset, textY + 1, TQRect(), cg);
 
         // draw text
-        cg = colorGroup();
+        cg = tqcolorGroup();
         m_richText->draw(&bufferPainter, 5 + textX, textY, rect(), cg);
 }
 
 void KalziumTip::dissolveMask()
 {
-    TQPainter maskPainter(&m_mask);
+    TQPainter tqmaskPainter(&m_tqmask);
 
-    m_mask.fill(Qt::black);
+    m_tqmask.fill(TQt::black);
 
-    maskPainter.setBrush(Qt::white);
-    maskPainter.setPen(Qt::white);
-    maskPainter.drawRoundRect(m_mask.rect(), 1600 / m_mask.rect().width(),
-                              1600 / m_mask.rect().height());
+    tqmaskPainter.setBrush(TQt::white);
+    tqmaskPainter.setPen(TQt::white);
+    tqmaskPainter.drawRoundRect(m_tqmask.rect(), 1600 / m_tqmask.rect().width(),
+                              1600 / m_tqmask.rect().height());
 
     m_dissolveSize += m_dissolveDelta;
 
     if (m_dissolveSize > 0)
     {
-        maskPainter.setRasterOp(Qt::EraseROP);
+        tqmaskPainter.setRasterOp(TQt::EraseROP);
 
         int x, y, s;
         const int size = 16;
@@ -247,7 +247,7 @@ void KalziumTip::dissolveMask()
                 {
                     s = 0;
                 }
-                maskPainter.drawEllipse(x - s / 2, y - s / 2, s, s);
+                tqmaskPainter.drawEllipse(x - s / 2, y - s / 2, s, s);
             }
         }
     }
@@ -257,7 +257,7 @@ void KalziumTip::dissolveMask()
         m_dissolveDelta = 1;
     }
 
-    setMask(m_mask);
+    setMask(m_tqmask);
 }
 
 void KalziumTip::hide()
@@ -269,15 +269,15 @@ void KalziumTip::hide()
 
 void KalziumTip::plainMask()
 {
-    	TQPainter maskPainter(&m_mask);
+    	TQPainter tqmaskPainter(&m_tqmask);
 
-    	m_mask.fill(Qt::black);
+    	m_tqmask.fill(TQt::black);
 
-    	maskPainter.setBrush(Qt::white);
-    	maskPainter.setPen(Qt::white);
-    	maskPainter.drawRoundRect(m_mask.rect(), 1600 / m_mask.rect().width(),
-                              1600 / m_mask.rect().height());
-    	setMask(m_mask);
+    	tqmaskPainter.setBrush(TQt::white);
+    	tqmaskPainter.setPen(TQt::white);
+    	tqmaskPainter.drawRoundRect(m_tqmask.rect(), 1600 / m_tqmask.rect().width(),
+                              1600 / m_tqmask.rect().height());
+    	setMask(m_tqmask);
     	m_frameTimer.stop();
 }
 
@@ -293,7 +293,7 @@ void KalziumTip::loadIcon()
 	if ( !iconpath.isEmpty() )
 	{
 		TQImage img ( iconpath, "JPEG" );
-		img = img.smoothScale ( 128, 128, TQImage::ScaleMin );
+		img = img.smoothScale ( 128, 128, TQ_ScaleMin );
 		m_icon.convertFromImage( img );
 
 	}
diff --git a/kalzium/src/kalziumtip.h b/kalzium/src/kalziumtip.h
index 0186529f..79923bd0 100644
--- a/kalzium/src/kalziumtip.h
+++ b/kalzium/src/kalziumtip.h
@@ -37,14 +37,15 @@ class TQTimer;
  * @short tooltip for kalzium
  * @author Martin Pfeiffer
  */
-class KalziumTip : public QWidget
+class KalziumTip : public TQWidget
 {
-	Q_OBJECT	
+	Q_OBJECT
+	TQ_OBJECT
 
 	public:
 		enum MaskEffect { Plain, Dissolve };
 
-		KalziumTip( TQWidget * parent = 0, const char * name = 0, WFlags f = 0 );
+		KalziumTip( TQWidget * tqparent = 0, const char * name = 0, WFlags f = 0 );
 
 		void showTip( TQPoint, Element* element, int visibleWidth, int visibleHeight ); //show the tip
 		void hide(); // hide it
@@ -54,7 +55,7 @@ class KalziumTip : public QWidget
 
      		void plainMask();
     		void dissolveMask();
-    	// if the mouse pointer hovers us, send the event to the parent
+    	// if the mouse pointer hovers us, send the event to the tqparent
     	// so we are some-what 'mouse transparent'
     	void mouseMoveEvent(TQMouseEvent * e);
 		void displayInternal();
@@ -66,20 +67,20 @@ class KalziumTip : public QWidget
 		void internalUpdate();
 		
 	private:
-		TQBitmap m_mask;
+		TQBitmap m_tqmask;
 		TQPoint m_mousePointer;
     		TQPixmap m_pixmap;
     		TQPixmap m_icon; //icon shown on the tip
 		TQPixmap m_noElemIcon; //icon for element wich have no image
 
-    		MaskEffect m_maskEffect; //inidicates to show mask effect or plain
+    		MaskEffect m_tqmaskEffect; //inidicates to show tqmask effect or plain
     		TQSimpleRichText* m_richText;
 
     		int m_dissolveSize;
     		int m_dissolveDelta;
 
     		TQTimer m_frameTimer; //timer for the dissolve effect
-    		bool m_dirty;	//indicates repainting the tooltip internal
+    		bool m_dirty;	//indicates tqrepainting the tooltip internal
 
 		const Element* m_tippedElement; //the element the tip is about
 };
diff --git a/kalzium/src/kalziumutils.cpp b/kalzium/src/kalziumutils.cpp
index 1522e495..f7ed9d09 100644
--- a/kalzium/src/kalziumutils.cpp
+++ b/kalzium/src/kalziumutils.cpp
@@ -35,10 +35,10 @@ int KalziumUtils::maxSize( const TQString& string, const TQRect& rect, TQFont fo
 	{
 		font.setPointSize( size );
 		p->setFont( font );
-		r = p->boundingRect( TQRect(), Qt::AlignAuto, string );
+		r = p->boundingRect( TQRect(), TQt::AlignAuto, string );
 		r.moveBy( rect.left(), rect.top() );
 		
-		if ( rect.contains( r ) )
+		if ( rect.tqcontains( r ) )
 			goodSizeFound = true;
 		else
 			size--;
@@ -50,12 +50,12 @@ int KalziumUtils::maxSize( const TQString& string, const TQRect& rect, TQFont fo
 
 int KalziumUtils::StringHeight( const TQString& string, const TQFont& font, TQPainter* p )
 {
-	return p->boundingRect( TQRect(), Qt::AlignAuto, string ).height();
+	return p->boundingRect( TQRect(), TQt::AlignAuto, string ).height();
 }
 
 int KalziumUtils::StringWidth( const TQString& string, const TQFont& font, TQPainter* p )
 {
-	return p->boundingRect( TQRect(), Qt::AlignAuto, string ).width();
+	return p->boundingRect( TQRect(), TQt::AlignAuto, string ).width();
 }
 
 double KalziumUtils::strippedValue( double num )
@@ -69,7 +69,7 @@ double KalziumUtils::strippedValue( double num )
 		power *= 10;
 
 	num = num / power * 10000;
-	num = qRound( num );
+	num = tqRound( num );
 
 	return num * power / 10000;
 }
diff --git a/kalzium/src/molcalcwidget.cpp b/kalzium/src/molcalcwidget.cpp
index 60eb5108..0bcc4f80 100644
--- a/kalzium/src/molcalcwidget.cpp
+++ b/kalzium/src/molcalcwidget.cpp
@@ -41,8 +41,8 @@
 #include <tqtooltip.h>
 
 
-MolcalcWidget::MolcalcWidget( TQWidget *parent, const char *name )
-    : MolcalcWidgetBase( parent, name )
+MolcalcWidget::MolcalcWidget( TQWidget *tqparent, const char *name )
+    : MolcalcWidgetBase( tqparent, name )
 {
 	clear();
 }
@@ -82,16 +82,16 @@ void MolcalcWidget::updateUI()
 		for ( ; it != itEnd; ++it ) {
 			// Update the resultLabel
 			str += i18n( "For example: \"1 Carbon\" or \"3 Oxygen\"", "%1 %2\n" )
-				.arg( (*it)->count() )
-				.arg( (*it)->element()->elname() );
+				.tqarg( (*it)->count() )
+				.tqarg( (*it)->element()->elname() );
 
 			complexString
 				+= i18n( "For example: 1 Seaborgium. Cumulative Mass: 263.119 u (39.25%)",
 						"%1 %2. Cumulative Mass: %3 u (%4%)\n" )
-				.arg( (*it)->count() )
-				.arg( (*it)->element()->elname() )
-				.arg( (*it)->count() * (*it)->element()->mass() )
-				.arg( KalziumUtils::strippedValue( (( (*it)->count() * (*it)->element()->mass() )
+				.tqarg( (*it)->count() )
+				.tqarg( (*it)->element()->elname() )
+				.tqarg( (*it)->count() * (*it)->element()->mass() )
+				.tqarg( KalziumUtils::strippedValue( (( (*it)->count() * (*it)->element()->mass() )
 								/ m_mass ) * 100 ) );
 		}
 		resultLabel->setText( str );
@@ -100,7 +100,7 @@ void MolcalcWidget::updateUI()
 		resultComposition->setText( compositionString(m_elementMap) );
 
 		// The mass
-		resultMass->setText( i18n( "Molecular mass: %1 u" ).arg( m_mass ) );
+		resultMass->setText( i18n( "Molecular mass: %1 u" ).tqarg( m_mass ) );
 
 		TQToolTip::add( resultMass,        complexString );
 		TQToolTip::add( resultComposition, complexString );
@@ -126,8 +126,8 @@ TQString MolcalcWidget::compositionString( ElementCountMap &_map )
 	ElementCountMap::Iterator  itEnd = _map.end();
 	for (; it != itEnd; ++it) {
 		str += i18n( "%1<sub>%2</sub> " )
-			.arg( (*it)->element()->symbol() )
-			.arg( (*it)->count() );
+			.tqarg( (*it)->element()->symbol() )
+			.tqarg( (*it)->count() );
 	}
 
 	return str;
diff --git a/kalzium/src/molcalcwidget.h b/kalzium/src/molcalcwidget.h
index c86d41d3..27cb0269 100644
--- a/kalzium/src/molcalcwidget.h
+++ b/kalzium/src/molcalcwidget.h
@@ -41,13 +41,14 @@ class MoleculeParser;
 class MolcalcWidget : public MolcalcWidgetBase
 {
 	Q_OBJECT
+  TQ_OBJECT
 	public:
 		/**
 		 * Constructor
-		 * @param parent parent widget
+		 * @param tqparent tqparent widget
 		 * @param name name of this widget
 		 */
-		MolcalcWidget( TQWidget *parent = 0, const char *name = 0 );
+		MolcalcWidget( TQWidget *tqparent = 0, const char *name = 0 );
 
 	protected slots:
 		void slotCalcButtonClicked();
diff --git a/kalzium/src/molcalcwidgetbase.ui b/kalzium/src/molcalcwidgetbase.ui
index a330b773..ab3f9f80 100644
--- a/kalzium/src/molcalcwidgetbase.ui
+++ b/kalzium/src/molcalcwidgetbase.ui
@@ -1,10 +1,10 @@
 <!DOCTYPE UI><UI version="3.3" stdsetdef="1">
 <class>MolcalcWidgetBase</class>
-<widget class="QWidget">
+<widget class="TQWidget">
     <property name="name">
         <cstring>MolcalcWidgetBase</cstring>
     </property>
-    <property name="geometry">
+    <property name="tqgeometry">
         <rect>
             <x>0</x>
             <y>0</y>
@@ -22,7 +22,7 @@
         <property name="spacing">
             <number>6</number>
         </property>
-        <widget class="QLayoutWidget" row="2" column="0">
+        <widget class="TQLayoutWidget" row="2" column="0">
             <hbox>
                 <widget class="KLineEdit">
                     <property name="name">
@@ -56,7 +56,7 @@
                 <enum>Horizontal</enum>
             </property>
         </widget>
-        <widget class="QLabel" row="4" column="0">
+        <widget class="TQLabel" row="4" column="0">
             <property name="name">
                 <cstring>resultComposition</cstring>
             </property>
@@ -69,7 +69,7 @@
             <property name="text">
                 <string></string>
             </property>
-            <property name="alignment">
+            <property name="tqalignment">
                 <set>AlignCenter</set>
             </property>
         </widget>
@@ -83,14 +83,14 @@
             <property name="sizeType">
                 <enum>MinimumExpanding</enum>
             </property>
-            <property name="sizeHint">
+            <property name="tqsizeHint">
                 <size>
                     <width>20</width>
                     <height>10</height>
                 </size>
             </property>
         </spacer>
-        <widget class="QLabel" row="6" column="0">
+        <widget class="TQLabel" row="6" column="0">
             <property name="name">
                 <cstring>resultLabel</cstring>
             </property>
@@ -98,7 +98,7 @@
                 <string></string>
             </property>
         </widget>
-        <widget class="QLabel" row="7" column="0">
+        <widget class="TQLabel" row="7" column="0">
             <property name="name">
                 <cstring>resultMass</cstring>
             </property>
@@ -124,10 +124,10 @@
         <slot>slotCalcButtonClicked()</slot>
     </connection>
 </connections>
-<slots>
+<Q_SLOTS>
     <slot access="protected">slotCalcButtonClicked()</slot>
-</slots>
-<layoutdefaults spacing="6" margin="11"/>
+</Q_SLOTS>
+<tqlayoutdefaults spacing="6" margin="11"/>
 <includehints>
     <includehint>klineedit.h</includehint>
     <includehint>kpushbutton.h</includehint>
diff --git a/kalzium/src/moleculeparser.cpp b/kalzium/src/moleculeparser.cpp
index 6780e65e..b3d19120 100644
--- a/kalzium/src/moleculeparser.cpp
+++ b/kalzium/src/moleculeparser.cpp
@@ -172,7 +172,7 @@ MoleculeParser::parseSubmolecule(double          *_resultMass,
 
 
 // Parse a term within the molecule, i.e. a single atom or a
-// submolecule within parenthesis followed by an optional number.
+// submolecule within tqparenthesis followed by an optional number.
 // Examples: Bk, Mn2, (COOH)2
 //
 // Return true if correct, otherwise return false.  
diff --git a/kalzium/src/orbitswidget.cpp b/kalzium/src/orbitswidget.cpp
index 06824c0f..35e74bf7 100644
--- a/kalzium/src/orbitswidget.cpp
+++ b/kalzium/src/orbitswidget.cpp
@@ -24,7 +24,7 @@
 
 static TQStringList hulllist;
 
-OrbitsWidget::OrbitsWidget( TQWidget *parent, const char *name) : TQWidget( parent, name )
+OrbitsWidget::OrbitsWidget( TQWidget *tqparent, const char *name) : TQWidget( tqparent, name )
 {
 	if ( hulllist.count() == 0 )
 	{
@@ -162,20 +162,20 @@ void OrbitsWidget::getNumberOfOrbits()
 	int cut = 0;
 	bool cont = true;
 
-	if ( !o.contains( rxb ) ) //only true for H and He
+	if ( !o.tqcontains( rxb ) ) //only true for H and He
 		numOfElectrons.append( o.toInt() );
 	else //every other element
 	{
 		while ( cont )
 		{
 
-			pos = o.find( rxb );
+			pos = o.tqfind( rxb );
 			cut = o.length()-pos-1;
 			numOfElectrons.append(o.left( pos ).toInt());
 			o = o.right( cut );
 			num++;
 
-			if ( !o.contains( rxb ) )
+			if ( !o.tqcontains( rxb ) )
 			{
 				numOfElectrons.append( o.toInt() );
 				cont = false;
diff --git a/kalzium/src/orbitswidget.h b/kalzium/src/orbitswidget.h
index cd7279bf..14ab4752 100644
--- a/kalzium/src/orbitswidget.h
+++ b/kalzium/src/orbitswidget.h
@@ -26,12 +26,13 @@
  * @short the widget which displays the Bohr-orbit of the element
  * @author Carsten Niehaus
  */
-class OrbitsWidget : public QWidget
+class OrbitsWidget : public TQWidget
 {
 	Q_OBJECT
+  TQ_OBJECT
 
 	public:
-		OrbitsWidget( TQWidget *parent=0 , const char *name =0 );
+		OrbitsWidget( TQWidget *tqparent=0 , const char *name =0 );
 
 		void setElementNumber( const int num );
 
diff --git a/kalzium/src/parser.cpp b/kalzium/src/parser.cpp
index d678885f..9edd9f1f 100644
--- a/kalzium/src/parser.cpp
+++ b/kalzium/src/parser.cpp
@@ -21,7 +21,7 @@
 
 Parser::Parser()
 {
-    start(TQString::null);
+    start(TQString());
 }
 
 
@@ -48,7 +48,7 @@ Parser::start(const TQString& _str)
     }
     else {
 	m_index     = 0;
-	m_nextChar  = m_str.at(0).latin1();
+	m_nextChar  = m_str.tqat(0).latin1();
 	getNextToken();
     }
 }
@@ -148,7 +148,7 @@ Parser::getNextChar()
 	m_nextChar = -1;
     }
     else 
-	m_nextChar = m_str.at(++m_index).latin1();
+	m_nextChar = m_str.tqat(++m_index).latin1();
 
     // Take care of null-terminated strings.
     if (m_nextChar == 0) {
diff --git a/kalzium/src/periodictableview.cpp b/kalzium/src/periodictableview.cpp
index a09dcf34..0e810aff 100644
--- a/kalzium/src/periodictableview.cpp
+++ b/kalzium/src/periodictableview.cpp
@@ -41,8 +41,8 @@
 #include <tqcolor.h>
 #include <tqrect.h>
 
-PerodicTableView::PerodicTableView(TQWidget *parent, const char *name)
-  : TQWidget(parent, name), m_kalziumTip(0), table(0), table2(0)
+PerodicTableView::PerodicTableView(TQWidget *tqparent, const char *name)
+  : TQWidget(tqparent, name), m_kalziumTip(0), table(0), table2(0)
 {
 	d = KalziumDataObject::instance();
 
@@ -171,8 +171,8 @@ void PerodicTableView::slotToolTip( int number )
 	m_tooltipElementNumber = number;
 
 	TQWidget *p = 0;
-	if ( dynamic_cast<TQWidget*>( parent() ) )
-		p = static_cast<TQWidget*>( parent() );
+	if ( dynamic_cast<TQWidget*>( tqparent() ) )
+		p = TQT_TQWIDGET( tqparent() );
 
 	if( p )
 		m_kalziumTip->showTip( mapFromGlobal(TQCursor::pos()), 
@@ -328,7 +328,7 @@ void PerodicTableView::resizeEvent( TQResizeEvent * /*e*/ )
   table->resize( width(), height() );
   table2->resize( width(), height() );
   // XXX: I know it isn't the best way, but otherwise the table won't be redrawn
-  // on repaint... Feel *free* to remove these two lines if you foind a better
+  // on tqrepaint... Feel *free* to remove these two lines if you foind a better
   // solution...
   doFullDraw = true;
   update();
@@ -417,14 +417,14 @@ void PerodicTableView::paintCurrentSelection()
 	p.begin(table);
 
 	TQPen pen;
-	pen.setStyle( DotLine );
+	pen.setStyle( Qt::DotLine );
 	pen.setWidth( 4 );
-	pen.setColor( Qt::blue );
+	pen.setColor( TQt::blue );
 	p.setPen( pen );
 
 	p.drawEllipse( x-10,y-10,ELEMENTSIZE+20,ELEMENTSIZE+20 );
 	pen.setWidth( 3 );
-	pen.setColor( Qt::red );
+	pen.setColor( TQt::red );
 	p.setPen( pen );
 	p.drawEllipse( x-5,y-5,ELEMENTSIZE+10,ELEMENTSIZE+10 );
 
@@ -491,12 +491,12 @@ void PerodicTableView::drawLegendToolTip( TQPainter* p )
 		bRect.moveBy( 15, 0 );
 	}
 
-	p->setBrush(Qt::SolidPattern);
+	p->setBrush(TQt::SolidPattern);
 	p->setBrush( TQColor( 255, 255, 220 ) );
 	p->drawRect( bRectExt );
 
-	p->setBrush( Qt::black );
-	p->setBrush(Qt::NoBrush);
+	p->setBrush( TQt::black );
+	p->setBrush(TQt::NoBrush);
 
 	p->drawText( bRect, AlignLeft|AlignTop, text );
 }
@@ -582,9 +582,9 @@ void PerodicTableView::drawLegend( TQPainter* p )
 		p->fillRect(x1, fieldheight*3, square_w, square_h, c_liquid );
 		p->fillRect(x1, fieldheight*4, square_w, square_h, c_vapor );
 
-		p->drawText(x1 + textOffset, fieldheight*2, fieldsize, fieldheight, Qt::AlignLeft, i18n("Solid") ); 
-		p->drawText(x1 + textOffset, fieldheight*3, fieldsize, fieldheight, Qt::AlignLeft, i18n("Liquid") ); 
-		p->drawText(x1 + textOffset, fieldheight*4, fieldsize, fieldheight, Qt::AlignLeft, i18n("Vaporous") ); 
+		p->drawText(x1 + textOffset, fieldheight*2, fieldsize, fieldheight, TQt::AlignLeft, i18n("Solid") ); 
+		p->drawText(x1 + textOffset, fieldheight*3, fieldsize, fieldheight, TQt::AlignLeft, i18n("Liquid") ); 
+		p->drawText(x1 + textOffset, fieldheight*4, fieldsize, fieldheight, TQt::AlignLeft, i18n("Vaporous") ); 
 		return;
 	}
 	switch ( m_currentScheme ){
@@ -601,14 +601,14 @@ void PerodicTableView::drawLegend( TQPainter* p )
 			p->fillRect( x2, fieldheight*4, square_w, square_h, color_7); 
 			p->fillRect( x2, fieldheight*5, square_w, square_h, color_8 ); 
 			
-			p->drawText( x1 + textOffset , fieldheight*2, fieldsize, fieldheight, Qt::AlignLeft, i18n("Group 1") ); 
-			p->drawText( x1 + textOffset , fieldheight*3, fieldsize, fieldheight, Qt::AlignLeft, i18n("Group 2")); 
-			p->drawText( x1 + textOffset , fieldheight*4, fieldsize, fieldheight, Qt::AlignLeft, i18n("Group 3")); 
-			p->drawText( x1 + textOffset , fieldheight*5, fieldsize, fieldheight, Qt::AlignLeft, i18n("Group 4")); 
-			p->drawText( x2 + textOffset , fieldheight*2, fieldsize, fieldheight, Qt::AlignLeft, i18n("Group 5")); 
-			p->drawText( x2 + textOffset , fieldheight*3, fieldsize, fieldheight, Qt::AlignLeft, i18n("Group 6")); 
-			p->drawText( x2 + textOffset , fieldheight*4, fieldsize, fieldheight, Qt::AlignLeft, i18n("Group 7")); 
-			p->drawText( x2 + textOffset , fieldheight*5, fieldsize, fieldheight, Qt::AlignLeft, i18n("Group 8")); 
+			p->drawText( x1 + textOffset , fieldheight*2, fieldsize, fieldheight, TQt::AlignLeft, i18n("Group 1") ); 
+			p->drawText( x1 + textOffset , fieldheight*3, fieldsize, fieldheight, TQt::AlignLeft, i18n("Group 2")); 
+			p->drawText( x1 + textOffset , fieldheight*4, fieldsize, fieldheight, TQt::AlignLeft, i18n("Group 3")); 
+			p->drawText( x1 + textOffset , fieldheight*5, fieldsize, fieldheight, TQt::AlignLeft, i18n("Group 4")); 
+			p->drawText( x2 + textOffset , fieldheight*2, fieldsize, fieldheight, TQt::AlignLeft, i18n("Group 5")); 
+			p->drawText( x2 + textOffset , fieldheight*3, fieldsize, fieldheight, TQt::AlignLeft, i18n("Group 6")); 
+			p->drawText( x2 + textOffset , fieldheight*4, fieldsize, fieldheight, TQt::AlignLeft, i18n("Group 7")); 
+			p->drawText( x2 + textOffset , fieldheight*5, fieldsize, fieldheight, TQt::AlignLeft, i18n("Group 8")); 
 			break;
 		case PerodicTableView::BLOCK:
 			p->fillRect(x1, fieldheight*2, square_w, square_h, color_s ); 
@@ -616,10 +616,10 @@ void PerodicTableView::drawLegend( TQPainter* p )
 			p->fillRect(x1, fieldheight*4, square_w, square_h, color_d ); 
 			p->fillRect(x1, fieldheight*5, square_w, square_h, color_f ); 
 			
-			p->drawText(x1 + textOffset, fieldheight*2, fieldsize, fieldheight, Qt::AlignLeft, i18n("s-Block") ); 
-			p->drawText(x1 + textOffset, fieldheight*3, fieldsize, fieldheight, Qt::AlignLeft, i18n("p-Block") ); 
-			p->drawText(x1 + textOffset, fieldheight*4, fieldsize, fieldheight, Qt::AlignLeft, i18n("d-Block") ); 
-			p->drawText(x1 + textOffset, fieldheight*5, fieldsize, fieldheight, Qt::AlignLeft, i18n("f-Block") ); 
+			p->drawText(x1 + textOffset, fieldheight*2, fieldsize, fieldheight, TQt::AlignLeft, i18n("s-Block") ); 
+			p->drawText(x1 + textOffset, fieldheight*3, fieldsize, fieldheight, TQt::AlignLeft, i18n("p-Block") ); 
+			p->drawText(x1 + textOffset, fieldheight*4, fieldsize, fieldheight, TQt::AlignLeft, i18n("d-Block") ); 
+			p->drawText(x1 + textOffset, fieldheight*5, fieldsize, fieldheight, TQt::AlignLeft, i18n("f-Block") ); 
 			break;
 		case PerodicTableView::ACIDIC:
 			p->fillRect(x1, fieldheight*2, square_w, square_h, color_ba ); 
@@ -627,10 +627,10 @@ void PerodicTableView::drawLegend( TQPainter* p )
 			p->fillRect(x1, fieldheight*4, square_w, square_h, color_ac ); 
 			p->fillRect(x1, fieldheight*5, square_w, square_h, color_amp );
 			
-			p->drawText(x1 + textOffset, fieldheight*2, fieldsize, fieldheight, Qt::AlignLeft, i18n("Basic") ); 
-			p->drawText(x1 + textOffset, fieldheight*3, fieldsize, fieldheight, Qt::AlignLeft, i18n("Neutral") ); 
-			p->drawText(x1 + textOffset, fieldheight*4, fieldsize, fieldheight, Qt::AlignLeft, i18n("Acidic") ); 
-			p->drawText(x1 + textOffset, fieldheight*5, fieldsize, fieldheight, Qt::AlignLeft, i18n("both acidic and basic behaviour","Amphoteric") ); 
+			p->drawText(x1 + textOffset, fieldheight*2, fieldsize, fieldheight, TQt::AlignLeft, i18n("Basic") ); 
+			p->drawText(x1 + textOffset, fieldheight*3, fieldsize, fieldheight, TQt::AlignLeft, i18n("Neutral") ); 
+			p->drawText(x1 + textOffset, fieldheight*4, fieldsize, fieldheight, TQt::AlignLeft, i18n("Acidic") ); 
+			p->drawText(x1 + textOffset, fieldheight*5, fieldsize, fieldheight, TQt::AlignLeft, i18n("both acidic and basic behaviour","Amphoteric") ); 
 			break;
 		case PerodicTableView::FAMILY:
 			p->fillRect( x1, fieldheight*2, square_w, square_h, c_alkaline ); 
@@ -643,28 +643,28 @@ void PerodicTableView::drawLegend( TQPainter* p )
 			p->fillRect( x2, fieldheight*5, square_w, square_h, c_noble_gas ); 
 			p->fillRect( x1, fieldheight*6, square_w, square_h, c_metalloid ); 
 			
-			p->drawText( x1 + textOffset , fieldheight*2, fieldsize, fieldheight, Qt::AlignLeft, i18n("Alkaline") ); 
-			p->drawText( x2 + textOffset , fieldheight*2, fieldsize, fieldheight, Qt::AlignLeft, i18n("Rare Earth")); 
-			p->drawText( x1 + textOffset , fieldheight*3, fieldsize, fieldheight, Qt::AlignLeft, i18n("Non-Metals")); 
-			p->drawText( x2 + textOffset , fieldheight*3, fieldsize, fieldheight, Qt::AlignLeft, i18n("Alkalie-Metals")); 
-			p->drawText( x1 + textOffset , fieldheight*4, fieldsize, fieldheight, Qt::AlignLeft, i18n("Other Metal")); 
-			p->drawText( x2 + textOffset , fieldheight*4, fieldsize, fieldheight, Qt::AlignLeft, i18n("Halogene")); 
-			p->drawText( x1 + textOffset , fieldheight*5, fieldsize, fieldheight, Qt::AlignLeft, i18n("Transition Metal")); 
-			p->drawText( x2 + textOffset , fieldheight*5, fieldsize, fieldheight, Qt::AlignLeft, i18n("Noble Gas")); 
-			p->drawText( x1 + textOffset , fieldheight*6, fieldsize, fieldheight, Qt::AlignLeft, i18n("Metalloid")); 
+			p->drawText( x1 + textOffset , fieldheight*2, fieldsize, fieldheight, TQt::AlignLeft, i18n("Alkaline") ); 
+			p->drawText( x2 + textOffset , fieldheight*2, fieldsize, fieldheight, TQt::AlignLeft, i18n("Rare Earth")); 
+			p->drawText( x1 + textOffset , fieldheight*3, fieldsize, fieldheight, TQt::AlignLeft, i18n("Non-Metals")); 
+			p->drawText( x2 + textOffset , fieldheight*3, fieldsize, fieldheight, TQt::AlignLeft, i18n("Alkalie-Metals")); 
+			p->drawText( x1 + textOffset , fieldheight*4, fieldsize, fieldheight, TQt::AlignLeft, i18n("Other Metal")); 
+			p->drawText( x2 + textOffset , fieldheight*4, fieldsize, fieldheight, TQt::AlignLeft, i18n("Halogene")); 
+			p->drawText( x1 + textOffset , fieldheight*5, fieldsize, fieldheight, TQt::AlignLeft, i18n("Transition Metal")); 
+			p->drawText( x2 + textOffset , fieldheight*5, fieldsize, fieldheight, TQt::AlignLeft, i18n("Noble Gas")); 
+			p->drawText( x1 + textOffset , fieldheight*6, fieldsize, fieldheight, TQt::AlignLeft, i18n("Metalloid")); 
 			break;
 		case PerodicTableView::CRYSTAL:
-			p->fillRect(x1, fieldheight*2, square_w, square_h, Qt::cyan ); 
-			p->fillRect(x1, fieldheight*3, square_w, square_h, Qt::red ); 
-			p->fillRect(x1, fieldheight*4, square_w, square_h, Qt::yellow ); 
-			p->fillRect(x1, fieldheight*5, square_w, square_h, Qt::green ); 
-			p->fillRect(x1, fieldheight*6, square_w, square_h, Qt::white ); 
-
-			p->drawText(x1 + textOffset, fieldheight*2, fieldsize, fieldheight, Qt::AlignLeft, i18n("Own") ); 
-			p->drawText(x1 + textOffset, fieldheight*3, fieldsize, fieldheight, Qt::AlignLeft, i18n("bcc, body centered cubic") ); 
-			p->drawText(x1 + textOffset, fieldheight*4, fieldsize, fieldheight, Qt::AlignLeft, i18n("hdp, hexagonal") ); 
-			p->drawText(x1 + textOffset, fieldheight*5, fieldsize, fieldheight, Qt::AlignLeft, i18n("ccp, cubic close packed") ); 
-			p->drawText(x1 + textOffset, fieldheight*6, fieldsize, fieldheight, Qt::AlignLeft, i18n("Unknown") ); 
+			p->fillRect(x1, fieldheight*2, square_w, square_h, TQt::cyan ); 
+			p->fillRect(x1, fieldheight*3, square_w, square_h, TQt::red ); 
+			p->fillRect(x1, fieldheight*4, square_w, square_h, TQt::yellow ); 
+			p->fillRect(x1, fieldheight*5, square_w, square_h, TQt::green ); 
+			p->fillRect(x1, fieldheight*6, square_w, square_h, TQt::white ); 
+
+			p->drawText(x1 + textOffset, fieldheight*2, fieldsize, fieldheight, TQt::AlignLeft, i18n("Own") ); 
+			p->drawText(x1 + textOffset, fieldheight*3, fieldsize, fieldheight, TQt::AlignLeft, i18n("bcc, body centered cubic") ); 
+			p->drawText(x1 + textOffset, fieldheight*4, fieldsize, fieldheight, TQt::AlignLeft, i18n("hdp, hexagonal") ); 
+			p->drawText(x1 + textOffset, fieldheight*5, fieldsize, fieldheight, TQt::AlignLeft, i18n("ccp, cubic close packed") ); 
+			p->drawText(x1 + textOffset, fieldheight*6, fieldsize, fieldheight, TQt::AlignLeft, i18n("Unknown") ); 
 			break;
 	}
 }
@@ -679,19 +679,19 @@ void PerodicTableView::drawNumeration( TQPainter* p )
 		case PerodicTableView::CAS:
 			for(int i = 0; i < 18 ; ++i )
 			{
-				p->drawText( i*ELEMENTSIZE,0 ,ELEMENTSIZE,ELEMENTSIZE, Qt::AlignCenter, TQString::number(i+1));
+				p->drawText( i*ELEMENTSIZE,0 ,ELEMENTSIZE,ELEMENTSIZE, TQt::AlignCenter, TQString::number(i+1));
 			}
 			break;
 		case PerodicTableView::IUPAC:
 			for(int i = 0; i < 18 ; ++i )
 			{
-				p->drawText( i*ELEMENTSIZE,0 ,ELEMENTSIZE,ELEMENTSIZE, Qt::AlignCenter, m_IUPAClist[i]);
+				p->drawText( i*ELEMENTSIZE,0 ,ELEMENTSIZE,ELEMENTSIZE, TQt::AlignCenter, m_IUPAClist[i]);
 			}
 			break;
 		case PerodicTableView::IUPACOLD:
 			for(int i = 0; i < 18 ; ++i )
 			{
-				p->drawText( i*ELEMENTSIZE,0 ,ELEMENTSIZE,ELEMENTSIZE, Qt::AlignCenter, m_IUPACOLDlist[i]);
+				p->drawText( i*ELEMENTSIZE,0 ,ELEMENTSIZE,ELEMENTSIZE, TQt::AlignCenter, m_IUPACOLDlist[i]);
 			}
 			break;
 	}
@@ -741,7 +741,7 @@ void PerodicTableView::mouseMoveEvent( TQMouseEvent * /*mouse*/ )
 	//JH: only update() if we were showing a tooltip
 	if ( m_tooltipElementNumber || m_showLegendTooltip )
 	{
-		//this invalidates the number. If the mouse
+		//this tqinvalidates the number. If the mouse
 		//is moved, the number is invalid. 
 		m_tooltipElementNumber = 0;
 		m_showLegendTooltip = false;
@@ -977,7 +977,7 @@ void PerodicTableView::calculateGradient( TQPainter *p )
 
 void PerodicTableView::drawGradientPerodicTableView( TQPainter *p, const double min, const double max )
 {
-	TQString title = TQString::null;
+	TQString title = TQString();
 	
 	const double var = max-min;
 	EList::ConstIterator it = d->ElementList.begin();
@@ -1103,7 +1103,7 @@ void PerodicTableView::drawGradientPerodicTableView( TQPainter *p, const double
 
 	// Create the gradient image.
 	TQSize s( ELEMENTSIZE*7+20, 20 );
-	TQImage img = KImageEffect::gradient ( s, Qt::white, Qt::red, 
+	TQImage img = KImageEffect::gradient ( s, TQt::white, TQt::red, 
 										  KImageEffect::HorizontalGradient );
 	TQPixmap pm( img );
 	
@@ -1122,7 +1122,7 @@ void PerodicTableView::drawGradientPerodicTableView( TQPainter *p, const double
 	font.setPointSize(maxSize);
 	p->setFont(font);
 
-	p->drawText( x+5, y+50, ELEMENTSIZE*10,20, Qt::AlignCenter, title ); 
+	p->drawText( x+5, y+50, ELEMENTSIZE*10,20, TQt::AlignCenter, title ); 
 	p->drawPixmap( x+50, y+80, pm );
 
 	if ( m_gradientType == Element::EA )
@@ -1130,13 +1130,13 @@ void PerodicTableView::drawGradientPerodicTableView( TQPainter *p, const double
 		// FIXME: In the lines below, "30" is the max allowed text
 		//        height.  This should be calculated from the font 
 		//        metrics, not hard coded.
-		p->drawText( x+50,y+100,ELEMENTSIZE*7+20,30, Qt::AlignRight, TQString::number( min ) ); 
-		p->drawText( x+50,y+100,ELEMENTSIZE*7+20,30, Qt::AlignLeft, TQString::number( max ) );
+		p->drawText( x+50,y+100,ELEMENTSIZE*7+20,30, TQt::AlignRight, TQString::number( min ) ); 
+		p->drawText( x+50,y+100,ELEMENTSIZE*7+20,30, TQt::AlignLeft, TQString::number( max ) );
 	}
 	else
 	{
-		p->drawText( x+50,y+100,ELEMENTSIZE*7+20,30, Qt::AlignRight, TQString::number( max ) ); 
-		p->drawText( x+50,y+100,ELEMENTSIZE*7+20,30, Qt::AlignLeft, TQString::number( min ) );
+		p->drawText( x+50,y+100,ELEMENTSIZE*7+20,30, TQt::AlignRight, TQString::number( max ) ); 
+		p->drawText( x+50,y+100,ELEMENTSIZE*7+20,30, TQt::AlignLeft, TQString::number( min ) );
 
 	} 
 }
@@ -1178,13 +1178,13 @@ void PerodicTableView::drawGradientButton( TQPainter *p, Element* e, double coef
 		e->drawGradient( p, v, c );
 	}
 	else
-		e->drawGradient( p, i18n("It means: Not Available. Translators: keep it as short as you can!", "N/A"), Qt::lightGray );
+		e->drawGradient( p, i18n("It means: Not Available. Translators: keep it as short as you can!", "N/A"), TQt::lightGray );
 }
 
 TQColor PerodicTableView::calculateColor( const double coeff )
 {
-	const TQColor color2 = Qt::white;
-	const TQColor color1 = Qt::red;
+	const TQColor color2 = TQt::white;
+	const TQColor color1 = TQt::red;
 
 	int red = (int)( (color1.red() - color2.red()) * coeff + color2.red() );
 	int green = (int)( (color1.green() - color2.green()) * coeff + color2.green() );
@@ -1347,15 +1347,15 @@ void PerodicTableView::setLook( PerodicTableView::SCHEMETYPE type, int which )
 			{
 				structure = ( *it )->crystalstructure();
 				if ( structure == "own")
-					(*it)->setElementColor( Qt::cyan );
+					(*it)->setElementColor( TQt::cyan );
 				else if ( structure == "bcc" )
-					(*it)->setElementColor( Qt::red );
+					(*it)->setElementColor( TQt::red );
 				else if ( structure == "hdp" )
-					(*it)->setElementColor( Qt::yellow );
+					(*it)->setElementColor( TQt::yellow );
 				else if ( structure == "ccp" )
-					(*it)->setElementColor( Qt::green );
+					(*it)->setElementColor( TQt::green );
 				else
-					(*it)->setElementColor( Qt::white );
+					(*it)->setElementColor( TQt::white );
 				++it;
 			}
 			setGradient( false );
diff --git a/kalzium/src/periodictableview.h b/kalzium/src/periodictableview.h
index 6f373555..8115ebe2 100644
--- a/kalzium/src/periodictableview.h
+++ b/kalzium/src/periodictableview.h
@@ -38,17 +38,18 @@ class KalziumTip;
  * @short basic class for the specific PerodicTableViews
  * @author Carsten Niehaus
  */
-class PerodicTableView : public QWidget
+class PerodicTableView : public TQWidget
 {
 	Q_OBJECT
+  TQ_OBJECT
 
 	public:
 		/**
 		 * Constructor
-		 * @param parent parent widget
+		 * @param tqparent tqparent widget
 		 * @param name name of this widget
 		 */
-		PerodicTableView( TQWidget *parent = 0, const char *name = 0);
+		PerodicTableView( TQWidget *tqparent = 0, const char *name = 0);
 		~PerodicTableView();
 
 		enum SCHEMETYPE
diff --git a/kalzium/src/plotsetupwidget.ui b/kalzium/src/plotsetupwidget.ui
index a395541d..f3de4fc9 100644
--- a/kalzium/src/plotsetupwidget.ui
+++ b/kalzium/src/plotsetupwidget.ui
@@ -1,10 +1,10 @@
 <!DOCTYPE UI><UI version="3.3" stdsetdef="1">
 <class>PlotSetupWidget</class>
-<widget class="QWidget">
+<widget class="TQWidget">
     <property name="name">
         <cstring>PlotSetupWidget</cstring>
     </property>
-    <property name="geometry">
+    <property name="tqgeometry">
         <rect>
             <x>0</x>
             <y>0</y>
@@ -16,7 +16,7 @@
         <property name="name">
             <cstring>unnamed</cstring>
         </property>
-        <widget class="QLabel" row="9" column="0">
+        <widget class="TQLabel" row="9" column="0">
             <property name="name">
                 <cstring>textLabel3</cstring>
             </property>
@@ -24,15 +24,15 @@
                 <string>First element:</string>
             </property>
         </widget>
-        <widget class="QLayoutWidget" row="2" column="0">
+        <widget class="TQLayoutWidget" row="2" column="0">
             <property name="name">
-                <cstring>layout4</cstring>
+                <cstring>tqlayout4</cstring>
             </property>
             <hbox>
                 <property name="name">
                     <cstring>unnamed</cstring>
                 </property>
-                <widget class="QLabel">
+                <widget class="TQLabel">
                     <property name="name">
                         <cstring>textLabel1_2</cstring>
                     </property>
@@ -40,7 +40,7 @@
                         <string>Average value:</string>
                     </property>
                 </widget>
-                <widget class="QLabel">
+                <widget class="TQLabel">
                     <property name="name">
                         <cstring>aValue</cstring>
                     </property>
@@ -67,15 +67,15 @@
                 <string>Define the last element whose value should be plotted</string>
             </property>
         </widget>
-        <widget class="QLayoutWidget" row="0" column="0">
+        <widget class="TQLayoutWidget" row="0" column="0">
             <property name="name">
-                <cstring>layout2</cstring>
+                <cstring>tqlayout2</cstring>
             </property>
             <hbox>
                 <property name="name">
                     <cstring>unnamed</cstring>
                 </property>
-                <widget class="QLabel">
+                <widget class="TQLabel">
                     <property name="name">
                         <cstring>textLabel3_2</cstring>
                     </property>
@@ -83,7 +83,7 @@
                         <string>Minimum value:</string>
                     </property>
                 </widget>
-                <widget class="QLabel">
+                <widget class="TQLabel">
                     <property name="name">
                         <cstring>minValue</cstring>
                     </property>
@@ -93,7 +93,7 @@
                 </widget>
             </hbox>
         </widget>
-        <widget class="QCheckBox" row="8" column="0">
+        <widget class="TQCheckBox" row="8" column="0">
             <property name="name">
                 <cstring>showNames</cstring>
             </property>
@@ -104,7 +104,7 @@
                 <string>Define whether the names of the plotted element should be displayed</string>
             </property>
         </widget>
-        <widget class="QLabel" row="11" column="0">
+        <widget class="TQLabel" row="11" column="0">
             <property name="name">
                 <cstring>textLabel4</cstring>
             </property>
@@ -112,15 +112,15 @@
                 <string>Last element:</string>
             </property>
         </widget>
-        <widget class="QLayoutWidget" row="1" column="0">
+        <widget class="TQLayoutWidget" row="1" column="0">
             <property name="name">
-                <cstring>layout3</cstring>
+                <cstring>tqlayout3</cstring>
             </property>
             <hbox>
                 <property name="name">
                     <cstring>unnamed</cstring>
                 </property>
-                <widget class="QLabel">
+                <widget class="TQLabel">
                     <property name="name">
                         <cstring>textLabel2</cstring>
                     </property>
@@ -128,7 +128,7 @@
                         <string>Maximum value:</string>
                     </property>
                 </widget>
-                <widget class="QLabel">
+                <widget class="TQLabel">
                     <property name="name">
                         <cstring>maxValue</cstring>
                     </property>
@@ -138,7 +138,7 @@
                 </widget>
             </hbox>
         </widget>
-        <widget class="QCheckBox" row="7" column="0">
+        <widget class="TQCheckBox" row="7" column="0">
             <property name="name">
                 <cstring>connectPoints</cstring>
             </property>
@@ -176,14 +176,14 @@
             <property name="sizeType">
                 <enum>Expanding</enum>
             </property>
-            <property name="sizeHint">
+            <property name="tqsizeHint">
                 <size>
                     <width>20</width>
                     <height>60</height>
                 </size>
             </property>
         </spacer>
-        <widget class="QGroupBox" row="4" column="0">
+        <widget class="TQGroupBox" row="4" column="0">
             <property name="name">
                 <cstring>groupBox1</cstring>
             </property>
@@ -248,7 +248,7 @@
 </widget>
 <customwidgets>
 </customwidgets>
-<layoutdefaults spacing="6" margin="11"/>
+<tqlayoutdefaults spacing="6" margin="11"/>
 <includehints>
     <includehint>knuminput.h</includehint>
     <includehint>kcombobox.h</includehint>
diff --git a/kalzium/src/plotwidget.cpp b/kalzium/src/plotwidget.cpp
index 2619b504..6a5a9156 100644
--- a/kalzium/src/plotwidget.cpp
+++ b/kalzium/src/plotwidget.cpp
@@ -25,9 +25,9 @@ PlotWidget::PlotWidget( double x1,
 		double x2,
 		double y1,
 		double y2,
-		TQWidget *parent,
+		TQWidget *tqparent,
 		const char* name)
-		: KPlotWidget( x1, x2, y1, y2, parent, name )
+		: KPlotWidget( x1, x2, y1, y2, tqparent, name )
 {
 	m_connectPoints = false;
 }
@@ -63,7 +63,7 @@ void PlotWidget::drawObjects( TQPainter *p )
 			old.setX( q.x() );
 			old.setY( q.y() );
 		}
-		p->setBrush( Qt::NoBrush );
+		p->setBrush( TQt::NoBrush );
 	}
 }
 
diff --git a/kalzium/src/plotwidget.h b/kalzium/src/plotwidget.h
index 44591f39..1c5ed5de 100644
--- a/kalzium/src/plotwidget.h
+++ b/kalzium/src/plotwidget.h
@@ -24,9 +24,10 @@
 class PlotWidget : public KPlotWidget
 {
 	Q_OBJECT
+  TQ_OBJECT
 
 	public:
-		PlotWidget( double x1 = 0.0, double x2 = 0.0, double y1 = 0.0, double y2 = 0.0, TQWidget *parent=0 , const char *name =0 );
+		PlotWidget( double x1 = 0.0, double x2 = 0.0, double y1 = 0.0, double y2 = 0.0, TQWidget *tqparent=0 , const char *name =0 );
 
 		/**
 		 * toggles if the points will be connected with 
diff --git a/kalzium/src/settings_colors.ui b/kalzium/src/settings_colors.ui
index f32360d0..e2d338a1 100644
--- a/kalzium/src/settings_colors.ui
+++ b/kalzium/src/settings_colors.ui
@@ -1,10 +1,10 @@
 <!DOCTYPE UI><UI version="3.3" stdsetdef="1">
 <class>setColors</class>
-<widget class="QWidget">
+<widget class="TQWidget">
     <property name="name">
         <cstring>setColors</cstring>
     </property>
-    <property name="geometry">
+    <property name="tqgeometry">
         <rect>
             <x>0</x>
             <y>0</y>
@@ -19,11 +19,11 @@
         <property name="name">
             <cstring>unnamed</cstring>
         </property>
-        <widget class="QTabWidget" row="0" column="0">
+        <widget class="TQTabWidget" row="0" column="0">
             <property name="name">
                 <cstring>dfgdfg</cstring>
             </property>
-            <widget class="QWidget">
+            <widget class="TQWidget">
                 <property name="name">
                     <cstring>tab</cstring>
                 </property>
@@ -34,23 +34,23 @@
                     <property name="name">
                         <cstring>unnamed</cstring>
                     </property>
-                    <widget class="QLayoutWidget" row="0" column="0">
+                    <widget class="TQLayoutWidget" row="0" column="0">
                         <property name="name">
-                            <cstring>layout32</cstring>
+                            <cstring>tqlayout32</cstring>
                         </property>
                         <vbox>
                             <property name="name">
                                 <cstring>unnamed</cstring>
                             </property>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout28</cstring>
+                                    <cstring>tqlayout28</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel13</cstring>
                                         </property>
@@ -68,15 +68,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout29</cstring>
+                                    <cstring>tqlayout29</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel14</cstring>
                                         </property>
@@ -94,15 +94,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout30</cstring>
+                                    <cstring>tqlayout30</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel15</cstring>
                                         </property>
@@ -120,15 +120,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout31</cstring>
+                                    <cstring>tqlayout31</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel16</cstring>
                                         </property>
@@ -150,7 +150,7 @@
                     </widget>
                 </grid>
             </widget>
-            <widget class="QWidget">
+            <widget class="TQWidget">
                 <property name="name">
                     <cstring>tab</cstring>
                 </property>
@@ -161,23 +161,23 @@
                     <property name="name">
                         <cstring>unnamed</cstring>
                     </property>
-                    <widget class="QLayoutWidget" row="0" column="0">
+                    <widget class="TQLayoutWidget" row="0" column="0">
                         <property name="name">
-                            <cstring>layout26</cstring>
+                            <cstring>tqlayout26</cstring>
                         </property>
                         <vbox>
                             <property name="name">
                                 <cstring>unnamed</cstring>
                             </property>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout23</cstring>
+                                    <cstring>tqlayout23</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel9</cstring>
                                         </property>
@@ -195,15 +195,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout24</cstring>
+                                    <cstring>tqlayout24</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel10</cstring>
                                         </property>
@@ -221,15 +221,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout25</cstring>
+                                    <cstring>tqlayout25</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel11</cstring>
                                         </property>
@@ -247,15 +247,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout26</cstring>
+                                    <cstring>tqlayout26</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel12</cstring>
                                         </property>
@@ -277,7 +277,7 @@
                     </widget>
                 </grid>
             </widget>
-            <widget class="QWidget">
+            <widget class="TQWidget">
                 <property name="name">
                     <cstring>TabPage</cstring>
                 </property>
@@ -288,23 +288,23 @@
                     <property name="name">
                         <cstring>unnamed</cstring>
                     </property>
-                    <widget class="QLayoutWidget" row="0" column="0">
+                    <widget class="TQLayoutWidget" row="0" column="0">
                         <property name="name">
-                            <cstring>layout22</cstring>
+                            <cstring>tqlayout22</cstring>
                         </property>
                         <vbox>
                             <property name="name">
                                 <cstring>unnamed</cstring>
                             </property>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout12</cstring>
+                                    <cstring>tqlayout12</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel2_2_2</cstring>
                                         </property>
@@ -322,15 +322,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout19</cstring>
+                                    <cstring>tqlayout19</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel8</cstring>
                                         </property>
@@ -348,15 +348,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout18</cstring>
+                                    <cstring>tqlayout18</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel7</cstring>
                                         </property>
@@ -374,15 +374,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout17</cstring>
+                                    <cstring>tqlayout17</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel6</cstring>
                                         </property>
@@ -400,15 +400,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout16</cstring>
+                                    <cstring>tqlayout16</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel5_2</cstring>
                                         </property>
@@ -426,15 +426,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout15</cstring>
+                                    <cstring>tqlayout15</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel4_2</cstring>
                                         </property>
@@ -452,15 +452,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout14</cstring>
+                                    <cstring>tqlayout14</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel3_2</cstring>
                                         </property>
@@ -478,15 +478,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout13</cstring>
+                                    <cstring>tqlayout13</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel2_2</cstring>
                                         </property>
@@ -508,7 +508,7 @@
                     </widget>
                 </grid>
             </widget>
-            <widget class="QWidget">
+            <widget class="TQWidget">
                 <property name="name">
                     <cstring>TabPage</cstring>
                 </property>
@@ -519,23 +519,23 @@
                     <property name="name">
                         <cstring>unnamed</cstring>
                     </property>
-                    <widget class="QLayoutWidget" row="0" column="0">
+                    <widget class="TQLayoutWidget" row="0" column="0">
                         <property name="name">
-                            <cstring>layout14</cstring>
+                            <cstring>tqlayout14</cstring>
                         </property>
                         <vbox>
                             <property name="name">
                                 <cstring>unnamed</cstring>
                             </property>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout13</cstring>
+                                    <cstring>tqlayout13</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel1</cstring>
                                         </property>
@@ -556,15 +556,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout6</cstring>
+                                    <cstring>tqlayout6</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel2</cstring>
                                         </property>
@@ -582,15 +582,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout7</cstring>
+                                    <cstring>tqlayout7</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel3</cstring>
                                         </property>
@@ -612,7 +612,7 @@
                     </widget>
                 </grid>
             </widget>
-            <widget class="QWidget">
+            <widget class="TQWidget">
                 <property name="name">
                     <cstring>TabPage</cstring>
                 </property>
@@ -623,23 +623,23 @@
                     <property name="name">
                         <cstring>unnamed</cstring>
                     </property>
-                    <widget class="QLayoutWidget" row="0" column="0">
+                    <widget class="TQLayoutWidget" row="0" column="0">
                         <property name="name">
-                            <cstring>layout36</cstring>
+                            <cstring>tqlayout36</cstring>
                         </property>
                         <vbox>
                             <property name="name">
                                 <cstring>unnamed</cstring>
                             </property>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout12_2</cstring>
+                                    <cstring>tqlayout12_2</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel2_2_2_2</cstring>
                                         </property>
@@ -657,15 +657,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout19_2</cstring>
+                                    <cstring>tqlayout19_2</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel8_2</cstring>
                                         </property>
@@ -683,15 +683,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout18_2</cstring>
+                                    <cstring>tqlayout18_2</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel7_2</cstring>
                                         </property>
@@ -709,15 +709,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout17_2</cstring>
+                                    <cstring>tqlayout17_2</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel6_2</cstring>
                                         </property>
@@ -735,15 +735,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout16_2</cstring>
+                                    <cstring>tqlayout16_2</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel5_2_2</cstring>
                                         </property>
@@ -761,15 +761,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout15_2</cstring>
+                                    <cstring>tqlayout15_2</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel4_2_2</cstring>
                                         </property>
@@ -787,15 +787,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout14_2</cstring>
+                                    <cstring>tqlayout14_2</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel3_2_2</cstring>
                                         </property>
@@ -813,15 +813,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout13_2</cstring>
+                                    <cstring>tqlayout13_2</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel2_2_3</cstring>
                                         </property>
@@ -839,15 +839,15 @@
                                     </widget>
                                 </hbox>
                             </widget>
-                            <widget class="QLayoutWidget">
+                            <widget class="TQLayoutWidget">
                                 <property name="name">
-                                    <cstring>layout35</cstring>
+                                    <cstring>tqlayout35</cstring>
                                 </property>
                                 <hbox>
                                     <property name="name">
                                         <cstring>unnamed</cstring>
                                     </property>
-                                    <widget class="QLabel">
+                                    <widget class="TQLabel">
                                         <property name="name">
                                             <cstring>textLabel2_2_3_2</cstring>
                                         </property>
@@ -869,7 +869,7 @@
                     </widget>
                 </grid>
             </widget>
-            <widget class="QWidget">
+            <widget class="TQWidget">
                 <property name="name">
                     <cstring>TabPage</cstring>
                 </property>
@@ -901,7 +901,7 @@
 </widget>
 <customwidgets>
 </customwidgets>
-<layoutdefaults spacing="6" margin="11"/>
+<tqlayoutdefaults spacing="6" margin="11"/>
 <includehints>
     <includehint>kcolorbutton.h</includehint>
     <includehint>kcolorbutton.h</includehint>
diff --git a/kalzium/src/settings_misc.ui b/kalzium/src/settings_misc.ui
index a66693dd..189dc1b9 100644
--- a/kalzium/src/settings_misc.ui
+++ b/kalzium/src/settings_misc.ui
@@ -1,10 +1,10 @@
 <!DOCTYPE UI><UI version="3.3" stdsetdef="1">
 <class>setupMisc</class>
-<widget class="QWidget">
+<widget class="TQWidget">
     <property name="name">
         <cstring>setupMisc</cstring>
     </property>
-    <property name="geometry">
+    <property name="tqgeometry">
         <rect>
             <x>0</x>
             <y>0</y>
@@ -16,7 +16,7 @@
         <property name="name">
             <cstring>unnamed</cstring>
         </property>
-        <widget class="QButtonGroup" row="0" column="0">
+        <widget class="TQButtonGroup" row="0" column="0">
             <property name="name">
                 <cstring>kcfg_pselook</cstring>
             </property>
@@ -30,7 +30,7 @@
                 <property name="name">
                     <cstring>unnamed</cstring>
                 </property>
-                <widget class="QRadioButton" row="0" column="0">
+                <widget class="TQRadioButton" row="0" column="0">
                     <property name="name">
                         <cstring>radioButton10</cstring>
                     </property>
@@ -38,7 +38,7 @@
                         <string>Display atomic &amp;mass in the PSE</string>
                     </property>
                 </widget>
-                <widget class="QRadioButton" row="2" column="0">
+                <widget class="TQRadioButton" row="2" column="0">
                     <property name="name">
                         <cstring>radioButton13</cstring>
                     </property>
@@ -58,7 +58,7 @@
             <property name="sizeType">
                 <enum>Expanding</enum>
             </property>
-            <property name="sizeHint">
+            <property name="tqsizeHint">
                 <size>
                     <width>20</width>
                     <height>30</height>
@@ -67,5 +67,5 @@
         </spacer>
     </grid>
 </widget>
-<layoutdefaults spacing="6" margin="11"/>
+<tqlayoutdefaults spacing="6" margin="11"/>
 </UI>
diff --git a/kalzium/src/settings_units.ui b/kalzium/src/settings_units.ui
index e054021a..4888572f 100644
--- a/kalzium/src/settings_units.ui
+++ b/kalzium/src/settings_units.ui
@@ -1,10 +1,10 @@
 <!DOCTYPE UI><UI version="3.3" stdsetdef="1">
 <class>setupUnits</class>
-<widget class="QWidget">
+<widget class="TQWidget">
     <property name="name">
         <cstring>setupUnits</cstring>
     </property>
-    <property name="geometry">
+    <property name="tqgeometry">
         <rect>
             <x>0</x>
             <y>0</y>
@@ -16,7 +16,7 @@
         <property name="name">
             <cstring>unnamed</cstring>
         </property>
-        <widget class="QButtonGroup" row="0" column="0">
+        <widget class="TQButtonGroup" row="0" column="0">
             <property name="name">
                 <cstring>kcfg_temperature</cstring>
             </property>
@@ -30,7 +30,7 @@
                 <property name="name">
                     <cstring>unnamed</cstring>
                 </property>
-                <widget class="QRadioButton" row="0" column="0">
+                <widget class="TQRadioButton" row="0" column="0">
                     <property name="name">
                         <cstring>radioButton19</cstring>
                     </property>
@@ -47,7 +47,7 @@
                         <string>If selected, the temperatures will be displayed in Kelvin. This is then saved in configuration and restored next time you start Kalzium.</string>
                     </property>
                 </widget>
-                <widget class="QRadioButton" row="2" column="0">
+                <widget class="TQRadioButton" row="2" column="0">
                     <property name="name">
                         <cstring>radioButton11_2</cstring>
                     </property>
@@ -64,7 +64,7 @@
                         <string>If selected, the temperatures will be displayed in Degrees Fahrenheit. This is then saved in configuration and restored next time you start Kalzium.</string>
                     </property>
                 </widget>
-                <widget class="QRadioButton" row="3" column="0">
+                <widget class="TQRadioButton" row="3" column="0">
                     <property name="name">
                         <cstring>radioButton21</cstring>
                     </property>
@@ -81,7 +81,7 @@
                         <string>If selected, the temperatures will be displayed in Degrees Rankine. This is then saved in configuration and restored next time you start Kalzium.</string>
                     </property>
                 </widget>
-                <widget class="QRadioButton" row="4" column="0">
+                <widget class="TQRadioButton" row="4" column="0">
                     <property name="name">
                         <cstring>radioButton22</cstring>
                     </property>
@@ -98,7 +98,7 @@
                         <string>If selected, the temperatures will be displayed in Degrees Réaumur. This is then saved in configuration and restored next time you start Kalzium.</string>
                     </property>
                 </widget>
-                <widget class="QRadioButton" row="1" column="0">
+                <widget class="TQRadioButton" row="1" column="0">
                     <property name="name">
                         <cstring>radioButton20</cstring>
                     </property>
@@ -117,7 +117,7 @@
                 </widget>
             </grid>
         </widget>
-        <widget class="QButtonGroup" row="1" column="0">
+        <widget class="TQButtonGroup" row="1" column="0">
             <property name="name">
                 <cstring>kcfg_energies</cstring>
             </property>
@@ -131,7 +131,7 @@
                 <property name="name">
                     <cstring>unnamed</cstring>
                 </property>
-                <widget class="QRadioButton" row="0" column="0">
+                <widget class="TQRadioButton" row="0" column="0">
                     <property name="name">
                         <cstring>radioButton3_2_2_2</cstring>
                     </property>
@@ -145,7 +145,7 @@
                         <string>Check this if you prefer the energy unit in  kJ/mol (kilojoule per mol). The other choice you have is eV (electronvolt).</string>
                     </property>
                 </widget>
-                <widget class="QRadioButton" row="1" column="0">
+                <widget class="TQRadioButton" row="1" column="0">
                     <property name="name">
                         <cstring>radioButton4_2_2_2</cstring>
                     </property>
@@ -163,5 +163,5 @@
         </widget>
     </grid>
 </widget>
-<layoutdefaults spacing="6" margin="11"/>
+<tqlayoutdefaults spacing="6" margin="11"/>
 </UI>
diff --git a/kalzium/src/somwidget.ui b/kalzium/src/somwidget.ui
index 83e19209..d39b9a9b 100644
--- a/kalzium/src/somwidget.ui
+++ b/kalzium/src/somwidget.ui
@@ -1,10 +1,10 @@
 <!DOCTYPE UI><UI version="3.3" stdsetdef="1">
 <class>SOMWidget</class>
-<widget class="QWidget">
+<widget class="TQWidget">
     <property name="name">
         <cstring>SOMWidget</cstring>
     </property>
-    <property name="geometry">
+    <property name="tqgeometry">
         <rect>
             <x>0</x>
             <y>0</y>
@@ -26,14 +26,14 @@
             <property name="sizeType">
                 <enum>Fixed</enum>
             </property>
-            <property name="sizeHint">
+            <property name="tqsizeHint">
                 <size>
                     <width>21</width>
                     <height>10</height>
                 </size>
             </property>
         </spacer>
-        <widget class="QTextEdit" row="4" column="0">
+        <widget class="TQTextEdit" row="4" column="0">
             <property name="name">
                 <cstring>text</cstring>
             </property>
@@ -58,22 +58,22 @@ the state of matter</string>
             <property name="sizeType">
                 <enum>Fixed</enum>
             </property>
-            <property name="sizeHint">
+            <property name="tqsizeHint">
                 <size>
                     <width>21</width>
                     <height>10</height>
                 </size>
             </property>
         </spacer>
-        <widget class="QLayoutWidget" row="1" column="0">
+        <widget class="TQLayoutWidget" row="1" column="0">
             <property name="name">
-                <cstring>layout3</cstring>
+                <cstring>tqlayout3</cstring>
             </property>
             <hbox>
                 <property name="name">
                     <cstring>unnamed</cstring>
                 </property>
-                <widget class="QLabel">
+                <widget class="TQLabel">
                     <property name="name">
                         <cstring>lbl1</cstring>
                     </property>
@@ -91,7 +91,7 @@ the state of matter</string>
                     <property name="sizeType">
                         <enum>Expanding</enum>
                     </property>
-                    <property name="sizeHint">
+                    <property name="tqsizeHint">
                         <size>
                             <width>20</width>
                             <height>21</height>
@@ -100,15 +100,15 @@ the state of matter</string>
                 </spacer>
             </hbox>
         </widget>
-        <widget class="QLayoutWidget" row="2" column="0">
+        <widget class="TQLayoutWidget" row="2" column="0">
             <property name="name">
-                <cstring>layout4</cstring>
+                <cstring>tqlayout4</cstring>
             </property>
             <hbox>
                 <property name="name">
                     <cstring>unnamed</cstring>
                 </property>
-                <widget class="QSlider">
+                <widget class="TQSlider">
                     <property name="name">
                         <cstring>temp_slider</cstring>
                     </property>
@@ -141,7 +141,7 @@ the state of matter</string>
                     <property name="sizeType">
                         <enum>Fixed</enum>
                     </property>
-                    <property name="sizeHint">
+                    <property name="tqsizeHint">
                         <size>
                             <width>5</width>
                             <height>20</height>
@@ -162,7 +162,7 @@ the state of matter</string>
                         <number>295</number>
                     </property>
                 </widget>
-                 <widget class="QLabel">
+                 <widget class="TQLabel">
                     <property name="name">
                         <cstring>lblUnit</cstring>
                     </property>
@@ -178,7 +178,7 @@ the state of matter</string>
 </customwidgets>
 <connections>
 </connections>
-<layoutdefaults spacing="6" margin="11"/>
+<tqlayoutdefaults spacing="6" margin="11"/>
 <includehints>
     <includehint>knuminput.h</includehint>
 </includehints>
diff --git a/kalzium/src/somwidget_impl.cpp b/kalzium/src/somwidget_impl.cpp
index 6e3f4b71..a2b3da77 100644
--- a/kalzium/src/somwidget_impl.cpp
+++ b/kalzium/src/somwidget_impl.cpp
@@ -30,13 +30,13 @@
 #include "prefs.h"
 #include "tempunit.h"
 
-SOMWidgetIMPL::SOMWidgetIMPL( TQWidget *parent, const char* name )
-	: SOMWidget( parent,name )
+SOMWidgetIMPL::SOMWidgetIMPL( TQWidget *tqparent, const char* name )
+	: SOMWidget( tqparent,name )
 {
 	m_list = KalziumDataObject::instance()->ElementList;
 
-	text->setAlignment( text->alignment() | Qt::WordBreak );
-	text->setTextFormat( Qt::RichText );
+	text->tqsetAlignment( text->tqalignment() | TQt::WordBreak );
+	text->setTextFormat( TQt::RichText );
 	text->setReadOnly( true );
 	text->setPaletteBackgroundColor( paletteBackgroundColor() );
 	text->setFrameStyle( TQFrame::NoFrame );
@@ -58,7 +58,7 @@ SOMWidgetIMPL::SOMWidgetIMPL( TQWidget *parent, const char* name )
 void SOMWidgetIMPL::reloadUnits()
 {
 	lblUnit->setText( TempUnit::unitListSymbol( Prefs::temperature() ) );
-	QPair<double, double> range = TempUnit::rangeForUnit( Prefs::temperature() );
+	TQPair<double, double> range = TempUnit::rangeForUnit( Prefs::temperature() );
 
 	double newvalue = TempUnit::convert( Number1->value(), m_prevUnit, Prefs::temperature() );
 	Number1->setRange( range.first, range.second, 0.1, 1 );
@@ -70,7 +70,7 @@ kdDebug() << "min: " << Number1->minValue() << " - max: " << Number1->maxValue()
 
 void SOMWidgetIMPL::sliderValueChanged( int temp )
 {
-// TODO check if in Qt4 the RangeControl emits the signal again
+// TODO check if in TQt4 the RangeControl emits the signal again
 	disconnect( Number1, TQT_SIGNAL( valueChanged( double ) ),
 	         this, TQT_SLOT( spinValueChanged( double ) ) );
 	disconnect( temp_slider, TQT_SIGNAL( valueChanged( int ) ),
@@ -139,7 +139,7 @@ void SOMWidgetIMPL::setNewTemp( double newtemp )
 		htmlcode += i18n( "Elements with melting point around this temperature:" ) + "<br>";
 		for ( uint i = 0; i < listMeltingPoint.count(); i++ )
 		{
-			htmlcode += "&nbsp;<b>&middot;</b>&nbsp;" + i18n( "For example: Carbon (300K)", "%1 (%2)" ).arg( listMeltingPoint[i] ).arg( listMeltingPointValue[i] ) + "<br>";
+			htmlcode += "&nbsp;<b>&middot;</b>&nbsp;" + i18n( "For example: Carbon (300K)", "%1 (%2)" ).tqarg( listMeltingPoint[i] ).tqarg( listMeltingPointValue[i] ) + "<br>";
 		}
 		htmlcode += "<br>";
 	}
@@ -153,7 +153,7 @@ void SOMWidgetIMPL::setNewTemp( double newtemp )
 		htmlcode += i18n( "Elements with boiling point around this temperature:" ) + "<br>";
 		for ( uint i = 0; i < listBoilingPoint.count(); i++ )
 		{
-			htmlcode += "&nbsp;<b>&middot;</b>&nbsp;" + i18n( "For example: Carbon (300K)", "%1 (%2)" ).arg( listBoilingPoint[i] ).arg( listBoilingPointValue[i] ) + "<br>";
+			htmlcode += "&nbsp;<b>&middot;</b>&nbsp;" + i18n( "For example: Carbon (300K)", "%1 (%2)" ).tqarg( listBoilingPoint[i] ).tqarg( listBoilingPointValue[i] ) + "<br>";
 		}
 		htmlcode += "<br>";
 	}
diff --git a/kalzium/src/somwidget_impl.h b/kalzium/src/somwidget_impl.h
index ab616f54..5d32dbdc 100644
--- a/kalzium/src/somwidget_impl.h
+++ b/kalzium/src/somwidget_impl.h
@@ -29,13 +29,14 @@ class Element;
 class SOMWidgetIMPL : public SOMWidget
 {
 	Q_OBJECT
+  TQ_OBJECT
 
 	public:
 		/**
-		 * @param parent The parent of this widget
+		 * @param tqparent The tqparent of this widget
 		 * @param name The name of this widget
 		 */
-		SOMWidgetIMPL( TQWidget *parent = 0, const char* name = 0 );
+		SOMWidgetIMPL( TQWidget *tqparent = 0, const char* name = 0 );
 
 	public slots:
 		/**
diff --git a/kalzium/src/spectrum.cpp b/kalzium/src/spectrum.cpp
index dc8abb01..45c62180 100644
--- a/kalzium/src/spectrum.cpp
+++ b/kalzium/src/spectrum.cpp
@@ -97,7 +97,7 @@ void Spectrum::adjustIntensities()
 		double curInt = ( ( double )( *it ).intensity );
 		
 		double newInt = max*1000/curInt;
-		( *it ).intensity = qRound( newInt );
+		( *it ).intensity = tqRound( newInt );
 	}
 }
 
@@ -130,17 +130,17 @@ TQString Spectrum::bandsAsHtml()
 	for (;it!=itEnd;++it)
 	{
 		html += TQString( "<tr>" )
-		     + "<td>" + i18n( "Wavelength: %1 nm" ).arg( ( *it ).wavelength ) + "</td>"
-		     + "<td>" + i18n( "Intensity: %1" ).arg( ( *it ).intensity ) + "</td>"
-		     + "<td>" + i18n( "Probability: %1 10<sup>8</sup>s<sup>-1</sup>" ).arg( ( *it ).aki ) + "</td>"
-		     + "<td>" + i18n( "Energy 1: %1" ).arg( ( *it ).energy1 ) + "</td>"
-		     + "<td>" + i18n( "Energy 2: %1" ).arg( ( *it ).energy2 ) + "</td>"
-		     + "<td>" + i18n( "Electron Configuration 1: %1" ).arg( ( *it ).electronconfig1 ) + "</td>"
-		     + "<td>" + i18n( "Electron Configuration 2: %1" ).arg( ( *it ).electronconfig2 ) + "</td>"
-		     + "<td>" + i18n( "Term 1: %1" ).arg( ( *it ).term1 ) + "</td>"
-		     + "<td>" + i18n( "Term 2: %1" ).arg( ( *it ).term2 ) + "</td>"
-		     + "<td>" + i18n( "J 1: %1" ).arg( ( *it ).J1 ) + "</td>"
-		     + "<td>" + i18n( "J 2: %1" ).arg( ( *it ).J2 ) + "</td>"
+		     + "<td>" + i18n( "Wavelength: %1 nm" ).tqarg( ( *it ).wavelength ) + "</td>"
+		     + "<td>" + i18n( "Intensity: %1" ).tqarg( ( *it ).intensity ) + "</td>"
+		     + "<td>" + i18n( "Probability: %1 10<sup>8</sup>s<sup>-1</sup>" ).tqarg( ( *it ).aki ) + "</td>"
+		     + "<td>" + i18n( "Energy 1: %1" ).tqarg( ( *it ).energy1 ) + "</td>"
+		     + "<td>" + i18n( "Energy 2: %1" ).tqarg( ( *it ).energy2 ) + "</td>"
+		     + "<td>" + i18n( "Electron Configuration 1: %1" ).tqarg( ( *it ).electronconfig1 ) + "</td>"
+		     + "<td>" + i18n( "Electron Configuration 2: %1" ).tqarg( ( *it ).electronconfig2 ) + "</td>"
+		     + "<td>" + i18n( "Term 1: %1" ).tqarg( ( *it ).term1 ) + "</td>"
+		     + "<td>" + i18n( "Term 2: %1" ).tqarg( ( *it ).term2 ) + "</td>"
+		     + "<td>" + i18n( "J 1: %1" ).tqarg( ( *it ).J1 ) + "</td>"
+		     + "<td>" + i18n( "J 2: %1" ).tqarg( ( *it ).J2 ) + "</td>"
 		     + "</tr>\n";
 	}
 
diff --git a/kalzium/src/spectrum.h b/kalzium/src/spectrum.h
index 090822a6..4d71837f 100644
--- a/kalzium/src/spectrum.h
+++ b/kalzium/src/spectrum.h
@@ -143,9 +143,9 @@ class Spectrum
 		TQString bandsAsHtml();
 
 		/**
-		 * @return the parent element of this spectrum
+		 * @return the tqparent element of this spectrum
 		 */
-		Element* parentElement()
+		Element* tqparentElement()
 		{ return m_parentElement; }
 
 	private:
diff --git a/kalzium/src/spectrumview.ui b/kalzium/src/spectrumview.ui
index 2787ab66..c7d53dbb 100644
--- a/kalzium/src/spectrumview.ui
+++ b/kalzium/src/spectrumview.ui
@@ -1,10 +1,10 @@
 <!DOCTYPE UI><UI version="3.3" stdsetdef="1">
 <class>SpectrumView</class>
-<widget class="QWidget">
+<widget class="TQWidget">
     <property name="name">
         <cstring>SpectrumView</cstring>
     </property>
-    <property name="geometry">
+    <property name="tqgeometry">
         <rect>
             <x>0</x>
             <y>0</y>
@@ -36,15 +36,15 @@
                 <string>This is the spectrum of the element</string>
             </property>
         </widget>
-        <widget class="QLayoutWidget">
+        <widget class="TQLayoutWidget">
             <property name="name">
-                <cstring>layout2</cstring>
+                <cstring>tqlayout2</cstring>
             </property>
             <hbox>
                 <property name="name">
                     <cstring>unnamed</cstring>
                 </property>
-                <widget class="QLabel">
+                <widget class="TQLabel">
                     <property name="name">
                         <cstring>label1</cstring>
                     </property>
@@ -55,7 +55,7 @@
                         <cstring>minimumValue</cstring>
                     </property>
                 </widget>
-                <widget class="QSpinBox">
+                <widget class="TQSpinBox">
                     <property name="name">
                         <cstring>minimumValue</cstring>
                     </property>
@@ -75,7 +75,7 @@
                         <string>This sets the leftmost wavelength of the spectrum</string>
                     </property>
                 </widget>
-                <widget class="QLabel">
+                <widget class="TQLabel">
                     <property name="name">
                         <cstring>label2</cstring>
                     </property>
@@ -86,7 +86,7 @@
                         <cstring>maximumValue</cstring>
                     </property>
                 </widget>
-                <widget class="QSpinBox">
+                <widget class="TQSpinBox">
                     <property name="name">
                         <cstring>maximumValue</cstring>
                     </property>
@@ -108,9 +108,9 @@
                 </widget>
             </hbox>
         </widget>
-        <widget class="QLayoutWidget">
+        <widget class="TQLayoutWidget">
             <property name="name">
-                <cstring>layout4</cstring>
+                <cstring>tqlayout4</cstring>
             </property>
             <hbox>
                 <property name="name">
@@ -126,7 +126,7 @@
                     <property name="sizeType">
                         <enum>Expanding</enum>
                     </property>
-                    <property name="sizeHint">
+                    <property name="tqsizeHint">
                         <size>
                             <width>211</width>
                             <height>21</height>
@@ -159,7 +159,7 @@
             <property name="sizeType">
                 <enum>Expanding</enum>
             </property>
-            <property name="sizeHint">
+            <property name="tqsizeHint">
                 <size>
                     <width>21</width>
                     <height>1</height>
@@ -213,10 +213,10 @@
         <slot>slotExportAsImage()</slot>
     </connection>
 </connections>
-<slots>
+<Q_SLOTS>
     <slot access="protected">slotExportAsImage()</slot>
-</slots>
-<layoutdefaults spacing="6" margin="11"/>
+</Q_SLOTS>
+<tqlayoutdefaults spacing="6" margin="11"/>
 <includehints>
     <includehint>spectrumwidget.h</includehint>
     <includehint>kpushbutton.h</includehint>
diff --git a/kalzium/src/spectrumviewimpl.cpp b/kalzium/src/spectrumviewimpl.cpp
index 89bc36ac..d862e5fd 100644
--- a/kalzium/src/spectrumviewimpl.cpp
+++ b/kalzium/src/spectrumviewimpl.cpp
@@ -22,10 +22,10 @@
 
 #include "exporter.h"
 
-SpectrumViewImpl::SpectrumViewImpl( TQWidget *parent, const char* name )
-	: SpectrumView( parent, name )
+SpectrumViewImpl::SpectrumViewImpl( TQWidget *tqparent, const char* name )
+	: SpectrumView( tqparent, name )
 {
-	resize( minimumSizeHint() );
+	resize( tqminimumSizeHint() );
 	// simulating an update
 	m_spectrumWidget->setRightBorder( maximumValue->value() );
 	exportButton->setGuiItem( KGuiItem( i18n( "&Export Spectrum as Image" ), "fileexport" ) );
@@ -35,7 +35,7 @@ void SpectrumViewImpl::slotExportAsImage()
 {
 	Exporter* exporter = new Exporter();
 	TQString fileName = KFileDialog::getSaveFileName(
-	                        TQString::null, exporter->supportedImageFormats(),
+	                        TQString(), exporter->supportedImageFormats(),
 	                        this, i18n( "Save Spectrum" ) );
 	if( !fileName.isEmpty() )
 	{
diff --git a/kalzium/src/spectrumviewimpl.h b/kalzium/src/spectrumviewimpl.h
index ed02db85..aea5ad2a 100644
--- a/kalzium/src/spectrumviewimpl.h
+++ b/kalzium/src/spectrumviewimpl.h
@@ -23,13 +23,14 @@
 class SpectrumViewImpl : public SpectrumView
 {
 	Q_OBJECT
+  TQ_OBJECT
 
 	public: 
 		/**
-		 * @param parent the parent widget
+		 * @param tqparent the tqparent widget
 		 * @param name the name used internally
 		 */
-		SpectrumViewImpl( TQWidget* parent, const char* name );
+		SpectrumViewImpl( TQWidget* tqparent, const char* name );
 
 		/**
 		 * sets the spectrum to @p spec
diff --git a/kalzium/src/spectrumwidget.cpp b/kalzium/src/spectrumwidget.cpp
index 54f70972..2431b407 100644
--- a/kalzium/src/spectrumwidget.cpp
+++ b/kalzium/src/spectrumwidget.cpp
@@ -39,7 +39,7 @@
 #include <ieeefp.h>
 #endif
 
-SpectrumWidget::SpectrumWidget( TQWidget *parent, const char* name ) : TQWidget( parent, name )
+SpectrumWidget::SpectrumWidget( TQWidget *tqparent, const char* name ) : TQWidget( tqparent, name )
 {
 	startValue = 0;
 	endValue = 0;
@@ -57,7 +57,7 @@ SpectrumWidget::SpectrumWidget( TQWidget *parent, const char* name ) : TQWidget(
 	setType( EmissionSpectrum );
 
 	setMinimumSize( 400, 230 );
-	setSizePolicy( TQSizePolicy::Expanding, TQSizePolicy::Expanding );
+	tqsetSizePolicy( TQSizePolicy::Expanding, TQSizePolicy::Expanding );
 	setBackgroundMode( NoBackground );
 }
 
@@ -70,8 +70,8 @@ void SpectrumWidget::paintEvent( TQPaintEvent * /*e*/ )
 	m_pixmap.fill( this, width(), height() );
 
 	TQPainter p;
-	p.begin( &m_pixmap, this );
-	p.fillRect( 0, 0, width(), m_realHeight, Qt::black ); 
+	p.tqbegin( &m_pixmap, this );
+	p.fillRect( 0, 0, width(), m_realHeight, TQt::black ); 
 
 	paintBands( &p );
 	
@@ -89,7 +89,7 @@ void SpectrumWidget::paintEvent( TQPaintEvent * /*e*/ )
 
 void SpectrumWidget::drawZoomLine( TQPainter* p )
 {
-	p->setPen( Qt::white );
+	p->setPen( TQt::white );
 	p->drawLine( m_LMBPointPress.x(), m_LMBPointPress.y(), m_LMBPointCurrent.x(), m_LMBPointPress.y() );
 	p->drawLine( m_LMBPointCurrent.x(), m_LMBPointPress.y()+10, m_LMBPointCurrent.x(), m_LMBPointPress.y()-10 );
 	p->drawLine( m_LMBPointPress.x(), m_LMBPointPress.y()+10, m_LMBPointPress.x(), m_LMBPointPress.y()-10 );
@@ -107,7 +107,7 @@ void SpectrumWidget::paintBands( TQPainter* p )
 			p->drawLine( x,0,x, m_realHeight );
 		}
 
-		p->setPen( Qt::black );
+		p->setPen( TQt::black );
 	}
 
  	int i = 0;
@@ -131,12 +131,12 @@ void SpectrumWidget::paintBands( TQPainter* p )
 				p->setPen( linecolor( ( *it ).wavelength ) );
 				p->drawLine( x,0,x, m_realHeight-1 );
 
-				p->setPen( Qt::black );
+				p->setPen( TQt::black );
 //				p->drawLine( x,m_realHeight,x, m_realHeight );
 				break;
  		
 			case AbsorptionSpectrum:
-				p->setPen( Qt::black );
+				p->setPen( TQt::black );
 				p->drawLine( x,0,x, m_realHeight-1 );
 				break;
  		}
@@ -223,7 +223,7 @@ int SpectrumWidget::Adjust( double color, double factor )
 	if ( color == 0.0 )
 		return 0;
 	else
-		return qRound( IntensityMax * pow( color*factor, Gamma ) );
+		return tqRound( IntensityMax * pow( color*factor, Gamma ) );
 }
 
 void SpectrumWidget::drawTickmarks( TQPainter* p )
@@ -249,8 +249,8 @@ void SpectrumWidget::drawTickmarks( TQPainter* p )
 					i*d < width()-space )
 			{
 				pos = ( double ) ( i*d )/width();
-				p->fillRect( i*d-space, m_realHeight+12, 2*space, 15, Qt::white );
-				p->drawText( i*d-space, m_realHeight+12, 2*space, 15, Qt::AlignCenter, KalziumUtils::localizedValue(  KalziumUtils::strippedValue( Wavelength( pos ) ), 6 ) );
+				p->fillRect( i*d-space, m_realHeight+12, 2*space, 15, TQt::white );
+				p->drawText( i*d-space, m_realHeight+12, 2*space, 15, TQt::AlignCenter, KalziumUtils::localizedValue(  KalziumUtils::strippedValue( Wavelength( pos ) ), 6 ) );
 			}
 		}
 		else {//small tickmarks
@@ -320,9 +320,9 @@ void SpectrumWidget::mouseMoveEvent( TQMouseEvent *e )
 
 void SpectrumWidget::mousePressEvent(  TQMouseEvent *e )
 {
-	if (  e->button() == TQMouseEvent::LeftButton )
+	if (  e->button() == Qt::LeftButton )
 		m_LMBPointPress = e->pos();
-	if (  e->button() == TQMouseEvent::RightButton )
+	if (  e->button() == Qt::RightButton )
 		slotZoomOut();
 //FIXME
 //the tooltip is not really working. Better to not have it
@@ -376,22 +376,22 @@ void SpectrumWidget::PrepareTooltip( double wavelength )
 
 void SpectrumWidget::drawTooltip( TQPainter *p )
 {
-	p->setPen( Qt::white );
+	p->setPen( TQt::white );
 	TQPoint pt = mapFromGlobal( TQCursor::pos() );
-	p->drawText( pt, i18n("Wavelength: %1").arg(m_band.wavelength) ); 
+	p->drawText( pt, i18n("Wavelength: %1").tqarg(m_band.wavelength) ); 
 	pt.setY( pt.y() + 15 );
-	p->drawText( pt, i18n("Intensity: %1").arg(m_band.intensity) ); 
+	p->drawText( pt, i18n("Intensity: %1").tqarg(m_band.intensity) ); 
 	pt.setY( pt.y() + 15 );
-	p->drawText( pt, i18n("Energy 1, Energy 2: %1, %2").arg(m_band.energy1).arg( m_band.energy2 ));
+	p->drawText( pt, i18n("Energy 1, Energy 2: %1, %2").tqarg(m_band.energy1).tqarg( m_band.energy2 ));
 	pt.setY( pt.y() + 15 );
-	p->drawText( pt, i18n("Term 1, Term 2: %1, %2").arg(m_band.term1).arg( m_band.term2 ));
+	p->drawText( pt, i18n("Term 1, Term 2: %1, %2").tqarg(m_band.term1).tqarg( m_band.term2 ));
 	pt.setY( pt.y() + 15 );
-	p->drawText( pt, i18n("J 1, J 2: %1, %2").arg(m_band.J1).arg( m_band.J2 ));
+	p->drawText( pt, i18n("J 1, J 2: %1, %2").tqarg(m_band.J1).tqarg( m_band.J2 ));
 }
 
 void SpectrumWidget::mouseReleaseEvent(  TQMouseEvent *e )
 {
-	if (  e->button() == TQMouseEvent::LeftButton )
+	if (  e->button() == Qt::LeftButton )
 	{
 		int left = (int)Wavelength( ( double )m_LMBPointPress.x()/width() );
 		int right = (int)Wavelength( ( double )e->pos().x()/width() );
@@ -415,12 +415,12 @@ TQPixmap SpectrumWidget::pixmap()
 	TQString text;
 
 	if( m_type == EmissionSpectrum )
-		text = i18n( "Emission spectrum of %1" ).arg( m_spectrum->parentElement()->elname() );
+		text = i18n( "Emission spectrum of %1" ).tqarg( m_spectrum->tqparentElement()->elname() );
 	else
-		text = i18n( "Absorption spectrum of %1" ).arg( m_spectrum->parentElement()->elname() );
+		text = i18n( "Absorption spectrum of %1" ).tqarg( m_spectrum->tqparentElement()->elname() );
 
 	TQPainter p( &tmp );
-	p.setPen( Qt::black );
+	p.setPen( TQt::black );
 	p.drawText( 30, m_realHeight + 70, text );
 
 	return tmp;
diff --git a/kalzium/src/spectrumwidget.h b/kalzium/src/spectrumwidget.h
index c29e433c..f5c98099 100644
--- a/kalzium/src/spectrumwidget.h
+++ b/kalzium/src/spectrumwidget.h
@@ -31,12 +31,13 @@
  * @author Carsten Niehaus
  * 
  */
-class SpectrumWidget : public QWidget
+class SpectrumWidget : public TQWidget
 {
 	Q_OBJECT
+  TQ_OBJECT
 
 	public:
-		SpectrumWidget( TQWidget *parent, const char* name = 0 );
+		SpectrumWidget( TQWidget *tqparent, const char* name = 0 );
 		
 		~SpectrumWidget(){}
 
diff --git a/kalzium/src/tempunit.cpp b/kalzium/src/tempunit.cpp
index a4e18ef7..bab2461c 100644
--- a/kalzium/src/tempunit.cpp
+++ b/kalzium/src/tempunit.cpp
@@ -94,40 +94,40 @@ TQString TempUnit::unitListSymbol( int i )
 	return l[i];
 }
 
-QPair<double, double> TempUnit::rangeForUnit( TempUnit::Unit u )
+TQPair<double, double> TempUnit::rangeForUnit( TempUnit::Unit u )
 {
 	switch( u )
 	{
 		case Kelvin:
 		{
-			return QPair<double, double>( 0.0, 5000.0 );
+			return TQPair<double, double>( 0.0, 5000.0 );
 			break;
 		}
 		case Celsius:
 		{
-			return QPair<double, double>( -273.16, 4726.84 );
+			return TQPair<double, double>( -273.16, 4726.84 );
 			break;
 		}
 		case Fahrenheit:
 		{
-			return QPair<double, double>( -459.67, 8540.33 );
+			return TQPair<double, double>( -459.67, 8540.33 );
 			break;
 		}
 		case Rankine:
 		{
-			return QPair<double, double>( 0.0, 9000.0 );
+			return TQPair<double, double>( 0.0, 9000.0 );
 			break;
 		}
 		case Reaumur:
 		{
-			return QPair<double, double>( -218.52, 3781.48 );
+			return TQPair<double, double>( -218.52, 3781.48 );
 			break;
 		}
 	}
-	return QPair<double, double>( 0.0, 5000.0 );
+	return TQPair<double, double>( 0.0, 5000.0 );
 }
 
-QPair<double, double> TempUnit::rangeForUnit( int u )
+TQPair<double, double> TempUnit::rangeForUnit( int u )
 {
 	return rangeForUnit( (TempUnit::Unit)u );
 }
diff --git a/kalzium/src/tempunit.h b/kalzium/src/tempunit.h
index 23629bb2..5c3e5e4e 100644
--- a/kalzium/src/tempunit.h
+++ b/kalzium/src/tempunit.h
@@ -81,12 +81,12 @@ class TempUnit
 		 */
 		static TQString unitListSymbol( int i );
 
-		static QPair<double, double> rangeForUnit( TempUnit::Unit u );
+		static TQPair<double, double> rangeForUnit( TempUnit::Unit u );
 
 		/**
 		 * @overload
 		 */
-		static QPair<double, double> rangeForUnit( int u );
+		static TQPair<double, double> rangeForUnit( int u );
 
 };
 #endif // TEMPUNIT_H
diff --git a/kalzium/src/timewidget.ui b/kalzium/src/timewidget.ui
index fcb46391..7466c21c 100644
--- a/kalzium/src/timewidget.ui
+++ b/kalzium/src/timewidget.ui
@@ -1,10 +1,10 @@
 <!DOCTYPE UI><UI version="3.3" stdsetdef="1">
 <class>TimeWidget</class>
-<widget class="QWidget">
+<widget class="TQWidget">
     <property name="name">
         <cstring>TimeWidget</cstring>
     </property>
-    <property name="geometry">
+    <property name="tqgeometry">
         <rect>
             <x>0</x>
             <y>0</y>
@@ -26,22 +26,22 @@
             <property name="sizeType">
                 <enum>Fixed</enum>
             </property>
-            <property name="sizeHint">
+            <property name="tqsizeHint">
                 <size>
                     <width>21</width>
                     <height>20</height>
                 </size>
             </property>
         </spacer>
-        <widget class="QLayoutWidget">
+        <widget class="TQLayoutWidget">
             <property name="name">
-                <cstring>layout3</cstring>
+                <cstring>tqlayout3</cstring>
             </property>
             <hbox>
                 <property name="name">
                     <cstring>unnamed</cstring>
                 </property>
-                <widget class="QLabel">
+                <widget class="TQLabel">
                     <property name="name">
                         <cstring>lbl1_2</cstring>
                     </property>
@@ -67,7 +67,7 @@
                     <property name="sizeType">
                         <enum>Expanding</enum>
                     </property>
-                    <property name="sizeHint">
+                    <property name="tqsizeHint">
                         <size>
                             <width>20</width>
                             <height>21</height>
@@ -76,15 +76,15 @@
                 </spacer>
             </hbox>
         </widget>
-        <widget class="QLayoutWidget">
+        <widget class="TQLayoutWidget">
             <property name="name">
-                <cstring>layout5</cstring>
+                <cstring>tqlayout5</cstring>
             </property>
             <hbox>
                 <property name="name">
                     <cstring>unnamed</cstring>
                 </property>
-                <widget class="QSlider">
+                <widget class="TQSlider">
                     <property name="name">
                         <cstring>time_slider</cstring>
                     </property>
@@ -117,7 +117,7 @@
                     <property name="sizeType">
                         <enum>Fixed</enum>
                     </property>
-                    <property name="sizeHint">
+                    <property name="tqsizeHint">
                         <size>
                             <width>5</width>
                             <height>21</height>
@@ -150,14 +150,14 @@
             <property name="sizeType">
                 <enum>Fixed</enum>
             </property>
-            <property name="sizeHint">
+            <property name="tqsizeHint">
                 <size>
                     <width>20</width>
                     <height>16</height>
                 </size>
             </property>
         </spacer>
-        <widget class="QTextEdit">
+        <widget class="TQTextEdit">
             <property name="name">
                 <cstring>text</cstring>
             </property>
@@ -194,7 +194,7 @@ of the elements</string>
         <slot>setValue(int)</slot>
     </connection>
 </connections>
-<layoutdefaults spacing="6" margin="11"/>
+<tqlayoutdefaults spacing="6" margin="11"/>
 <includehints>
     <includehint>knuminput.h</includehint>
 </includehints>
diff --git a/kalzium/src/timewidget_impl.cpp b/kalzium/src/timewidget_impl.cpp
index a5f186bc..576ab17d 100644
--- a/kalzium/src/timewidget_impl.cpp
+++ b/kalzium/src/timewidget_impl.cpp
@@ -20,11 +20,11 @@
 
 #include <knuminput.h>
 
-TimeWidgetIMPL::TimeWidgetIMPL( TQWidget *parent, const char* name )
-	: TimeWidget( parent, name )
+TimeWidgetIMPL::TimeWidgetIMPL( TQWidget *tqparent, const char* name )
+	: TimeWidget( tqparent, name )
 {
-	text->setAlignment( text->alignment() | Qt::WordBreak );
-	text->setTextFormat( Qt::RichText );
+	text->tqsetAlignment( text->tqalignment() | TQt::WordBreak );
+	text->setTextFormat( TQt::RichText );
 	text->setReadOnly( true );
 	text->setPaletteBackgroundColor( paletteBackgroundColor() );
 	text->setFrameStyle( TQFrame::NoFrame );
diff --git a/kalzium/src/timewidget_impl.h b/kalzium/src/timewidget_impl.h
index 65030da1..b728b435 100644
--- a/kalzium/src/timewidget_impl.h
+++ b/kalzium/src/timewidget_impl.h
@@ -22,13 +22,14 @@
 class TimeWidgetIMPL : public TimeWidget
 {
 	Q_OBJECT
+  TQ_OBJECT
 
 	public:
 		/**
-		 * @param parent The parent of this widget
+		 * @param tqparent The tqparent of this widget
 		 * @param name The name of this widget
 		 */
-		TimeWidgetIMPL( TQWidget *parent = 0, const char* name = 0 );
+		TimeWidgetIMPL( TQWidget *tqparent = 0, const char* name = 0 );
 
 	public slots:
 		/**