diff --git a/conducer.cpp b/conducer.cpp
index db2a7f97f..b065ea7a4 100644
--- a/conducer.cpp
+++ b/conducer.cpp
@@ -4,6 +4,7 @@
 #include "conducersegmentprofile.h"
 #include "element.h"
 #include "diagram.h"
+#include "diagramcommands.h"
 #define PR(x) qDebug() << #x " = " << x;
 
 bool Conducer::pen_and_brush_initialized = false;
@@ -938,7 +939,11 @@ void Conducer::calculateTextItemPosition() {
 	dans priv_modifieConducer.
 */
 void Conducer::saveProfile() {
+	ConducerProfile old_profile = conducer_profile;
 	conducer_profile.fromConducer(this);
+	if (Diagram *dia = diagram()) {
+		dia -> undoStack().push(new ChangeConducerCommand(this, old_profile, conducer_profile));
+	}
 }
 
 /**
@@ -957,3 +962,19 @@ int Conducer::getCoeff(const qreal &value1, const qreal &value2) {
 int Conducer::getSign(const qreal &value) {
 	return(value < 0 ? -1 : 1);
 }
+
+/**
+	Applique un nouveau profil a ce conducteur
+	@param cp Profil a appliquer a ce conducteur
+*/
+void Conducer::setProfile(const ConducerProfile &cp) {
+	conducer_profile = cp;
+	if (conducer_profile.isNull()) {
+		priv_calculeConducer(terminal1 -> amarrageConducer(), terminal1 -> orientation(), terminal2 -> amarrageConducer(), terminal2 -> orientation());
+		modified_path = false;
+	} else {
+		priv_modifieConducer(terminal1 -> amarrageConducer(), terminal1 -> orientation(), terminal2 -> amarrageConducer(), terminal2 -> orientation());
+		modified_path = true;
+	}
+	calculateTextItemPosition();
+}
diff --git a/conducer.h b/conducer.h
index bf302dbf9..2051ac248 100644
--- a/conducer.h
+++ b/conducer.h
@@ -63,6 +63,7 @@ class Conducer : public QGraphicsPathItem {
 	bool fromXml(QDomElement &);
 	QDomElement toXml(QDomDocument &, QHash<Terminal *, int> &) const;
 	const QList<ConducerSegment *> segmentsList() const;
+	void setProfile(const ConducerProfile &);
 	
 	protected:
 	virtual void mousePressEvent(QGraphicsSceneMouseEvent *);
diff --git a/conducerprofile.cpp b/conducerprofile.cpp
index c24162fb2..9cd4fffab 100644
--- a/conducerprofile.cpp
+++ b/conducerprofile.cpp
@@ -14,11 +14,40 @@ ConducerProfile::ConducerProfile(Conducer *conducer) {
 	fromConducer(conducer);
 }
 
+/**
+	Constructeur de copie
+	@param c autre conducteur
+*/
+ConducerProfile::ConducerProfile(const ConducerProfile &c) {
+	beginOrientation = c.beginOrientation;
+	endOrientation   = c.endOrientation;
+	foreach(ConducerSegmentProfile *csp, c.segments) {
+		segments << new ConducerSegmentProfile(*csp);
+	}
+}
+
+/**
+	Operateur =
+	@param c autre conducteur
+*/
+ConducerProfile &ConducerProfile::operator=(const ConducerProfile &c) {
+	if (&c == this) return(*this);
+	
+	// supprime ses informations
+	setNull();
+	
+	// copie les informations de l'autre profil de conducteur
+	beginOrientation = c.beginOrientation;
+	endOrientation   = c.endOrientation;
+	foreach(ConducerSegmentProfile *csp, c.segments) {
+		segments << new ConducerSegmentProfile(*csp);
+	}
+	return(*this);
+}
+
 /// destructeur
 ConducerProfile::~ConducerProfile() {
-	foreach(ConducerSegmentProfile * s, segments) {
-		delete s;
-	}
+	setNull();
 }
 
 /// @return true si le profil est nul
@@ -26,6 +55,12 @@ bool ConducerProfile::isNull() const {
 	return(segments.isEmpty());
 }
 
+/// supprime les segments du profil de conducteur
+void ConducerProfile::setNull() {
+	foreach(ConducerSegmentProfile *csp, segments) delete csp;
+	segments.clear();
+}
+
 /// @return la largeur occupee par le conducteur
 qreal ConducerProfile::width() const {
 	qreal width = 0.0;
@@ -78,8 +113,7 @@ QList<ConducerSegmentProfile *> ConducerProfile::verticalSegments() {
 
 void ConducerProfile::fromConducer(Conducer *conducer) {
 	// supprime les segments precedents
-	foreach(ConducerSegmentProfile *csp, segments) delete csp;
-	segments.clear();
+	setNull();
 	
 	foreach(ConducerSegment *conducer_segment, conducer -> segmentsList()) {
 		segments << new ConducerSegmentProfile(conducer_segment);
diff --git a/conducerprofile.h b/conducerprofile.h
index 0cd9a3deb..e305a2f39 100644
--- a/conducerprofile.h
+++ b/conducerprofile.h
@@ -13,6 +13,8 @@ class ConducerProfile {
 	// constructeurs, destructeur
 	ConducerProfile();
 	ConducerProfile(Conducer *conducer);
+	ConducerProfile(const ConducerProfile &);
+	ConducerProfile &operator=(const ConducerProfile &);
 	virtual ~ConducerProfile();
 	
 	// attributs
@@ -24,6 +26,7 @@ class ConducerProfile {
 	// methodes
 	public:
 	bool isNull() const;
+	void setNull();
 	qreal width() const;
 	qreal height() const;
 	uint nbSegments(QET::ConducerSegmentType) const;
diff --git a/diagramcommands.cpp b/diagramcommands.cpp
index 575fea33d..1efb3d09d 100644
--- a/diagramcommands.cpp
+++ b/diagramcommands.cpp
@@ -244,16 +244,10 @@ MoveElementsCommand::MoveElementsCommand(
 	movement(m)
 {
 	setText(QObject::tr("d\351placer ") + QET::ElementsAndConducersSentence(elements_to_move.count(), conducers_to_move.count()));
-	foreach(QGraphicsItem *qgi, elements_to_move)    diagram -> qgiManager().manage(qgi);
-	foreach(QGraphicsItem *qgi, conducers_to_move)   diagram -> qgiManager().manage(qgi);
-	foreach(QGraphicsItem *qgi, conducers_to_update) diagram -> qgiManager().manage(qgi);
 }
 
 /// Destructeur
 MoveElementsCommand::~MoveElementsCommand() {
-	foreach(QGraphicsItem *qgi, elements_to_move)    diagram -> qgiManager().release(qgi);
-	foreach(QGraphicsItem *qgi, conducers_to_move)   diagram -> qgiManager().release(qgi);
-	foreach(QGraphicsItem *qgi, conducers_to_update) diagram -> qgiManager().release(qgi);
 }
 
 /// annule le deplacement
@@ -357,3 +351,39 @@ void RotateElementsCommand::redo() {
 		e -> update();
 	}
 }
+
+/**
+	Constructeur
+	@param c Conducteur modifie
+	@param old_p ancien profil du conducteur
+	@param new_p nouveau profil du conducteur
+	@param parent QUndoCommand parent
+*/
+ChangeConducerCommand::ChangeConducerCommand(
+	Conducer *c,
+	const ConducerProfile &old_p,
+	const ConducerProfile &new_p,
+	QUndoCommand *parent
+) :
+	QUndoCommand(QObject::tr("modifier un conducteur"), parent),
+	conducer(c),
+	old_profile(old_p),
+	new_profile(new_p),
+	first_redo(true)
+{
+}
+
+/// Destructeur
+ChangeConducerCommand::~ChangeConducerCommand() {
+}
+
+/// Annule la modification du conducteur
+void ChangeConducerCommand::undo() {
+	conducer -> setProfile(old_profile);
+}
+
+/// Refait la modification du conducteur
+void ChangeConducerCommand::redo() {
+	if (first_redo) first_redo = false;
+	else conducer -> setProfile(new_profile);
+}
diff --git a/diagramcommands.h b/diagramcommands.h
index c97cf1a3f..593ba6ba8 100644
--- a/diagramcommands.h
+++ b/diagramcommands.h
@@ -3,6 +3,7 @@
 #include "qet.h"
 #include "diagram.h"
 #include "diagramtextitem.h"
+#include "conducer.h"
 #include <QtGui>
 /**
 	Cette classe represente l'action d'ajouter un element au schema
@@ -182,7 +183,6 @@ class ChangeDiagramTextCommand : public QUndoCommand {
 	QString text_after;
 	/// booleen pour ne pas executer le premier redo()
 	bool first_redo;
-	
 };
 
 /**
@@ -206,4 +206,32 @@ class RotateElementsCommand : public QUndoCommand {
 	/// texte avant changement
 	QHash<Element *, QET::Orientation> elements_to_rotate;
 };
+
+/**
+	Cette classe represente l'action de modifier un conducteur
+*/
+class ChangeConducerCommand : public QUndoCommand {
+	// constructeurs, destructeur
+	public:
+	ChangeConducerCommand(Conducer *, const ConducerProfile &, const ConducerProfile &, QUndoCommand * = 0);
+	virtual ~ChangeConducerCommand();
+	private:
+	ChangeConducerCommand(const ChangeConducerCommand &);
+	
+	// methodes
+	public:
+	virtual void undo();
+	virtual void redo();
+	
+	// attributs
+	private:
+	/// DiagramTextItem modifie
+	Conducer *conducer;
+	/// texte avant changement
+	ConducerProfile old_profile;
+	/// texte apres changement
+	ConducerProfile new_profile;
+	/// booleen pour ne pas executer le premier redo()
+	bool first_redo;
+};
 #endif