Les modifications apportees aux proprietes des conducteurs sont desormais annulables

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@152 bfdf4180-ca20-0410-9c96-a3a8aa849046

conducer.cpp

@@ -1024,6 +1024,7 @@ QString Conducer::text() const {
 */
 void Conducer::setText(const QString &t) {
 	text_item -> setPlainText(t);
+	text_item -> previous_text = t;
 }
 
 

diagramcommands.cpp

@@ -472,3 +472,46 @@ void ChangeBorderCommand::undo() {
 void ChangeBorderCommand::redo() {
 	applyChanges(1);
 }
+
+ChangeConducerPropertiesCommand::ChangeConducerPropertiesCommand(Conducer *c, QUndoCommand *parent) :
+	QUndoCommand(QObject::tr("modifier les propri\351t\351s d'un conducteur"), parent),
+	conducer(c),
+	old_settings_set(false),
+	new_settings_set(false)
+{
+}
+
+ChangeConducerPropertiesCommand::~ChangeConducerPropertiesCommand() {
+}
+
+void ChangeConducerPropertiesCommand::setOldSettings(bool single, const QString &text, const SingleLineProperties &slp) {
+	old_is_single_line = single;
+	old_conducer_text = text;
+	old_slp = slp;
+	old_settings_set = true;
+}
+
+void ChangeConducerPropertiesCommand::setNewSettings(bool single, const QString &text, const SingleLineProperties &slp) {
+	new_is_single_line = single;
+	new_conducer_text = text;
+	new_slp = slp;
+	new_settings_set = true;
+}
+
+void ChangeConducerPropertiesCommand::undo() {
+	if (old_settings_set && new_settings_set) {
+		conducer -> setSingleLine(old_is_single_line);
+		conducer -> setText(old_conducer_text);
+		conducer -> singleLineProperties = old_slp;
+		conducer -> update();
+	}
+}
+
+void ChangeConducerPropertiesCommand::redo() {
+	if (old_settings_set && new_settings_set) {
+		conducer -> setSingleLine(new_is_single_line);
+		conducer -> setText(new_conducer_text);
+		conducer -> singleLineProperties = new_slp;
+		conducer -> update();
+	}
+}

diagramcommands.h

@@ -297,4 +297,38 @@ class ChangeBorderCommand : public QUndoCommand {
 	/// Delta pour la hauteur des entetes des colonnes
 	qreal headersHeightDifference;
 };
+
+/**
+	Cette classe represente l'action de modifier les proprietes d'un conducteur
+*/
+class ChangeConducerPropertiesCommand : public QUndoCommand {
+	// constructeurs, destructeur
+	public:
+	ChangeConducerPropertiesCommand(Conducer *, QUndoCommand * = 0);
+	virtual ~ChangeConducerPropertiesCommand();
+	private:
+	ChangeConducerPropertiesCommand(const ChangeConducerPropertiesCommand &);
+	
+	// methodes
+	public:
+	virtual void undo();
+	virtual void redo();
+	virtual void setOldSettings(bool, const QString &, const SingleLineProperties &);
+	virtual void setNewSettings(bool, const QString &, const SingleLineProperties &);
+	
+	// attributs
+	private:
+	/// Conducteur modifie
+	Conducer *conducer;
+	/// anciennes proprietes
+	bool old_is_single_line;
+	QString old_conducer_text;
+	SingleLineProperties old_slp;
+	/// nouvelles proprietes
+	bool new_is_single_line;
+	QString new_conducer_text;
+	SingleLineProperties new_slp;
+	bool old_settings_set;
+	bool new_settings_set;
+};
 #endif

diagramview.cpp

@@ -618,8 +618,13 @@ void DiagramView::editConducer() {
 	cpw -> setConducerText(edited_conducer -> text());
 	cpw -> setSingleLineProperties(edited_conducer -> singleLineProperties);
 	
+	// initialise egalement l'objet UndoCommand correspondant
+	ChangeConducerPropertiesCommand *ccpc = new ChangeConducerPropertiesCommand(edited_conducer);
+	ccpc -> setOldSettings(edited_conducer -> isSingleLine(), edited_conducer -> text(), edited_conducer -> singleLineProperties);
+	
 	// l'insere dans un dialogue
 	QDialog conducer_dialog;
+	conducer_dialog.setWindowTitle(tr("\311diter les propri\351t\351s d'un conducteur"));
 	QVBoxLayout *dialog_layout = new QVBoxLayout(&conducer_dialog);
 	dialog_layout -> addWidget(cpw);
 	QDialogButtonBox *dbb = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
@@ -629,9 +634,9 @@ void DiagramView::editConducer() {
 	
 	// execute le dialogue et met a jour le conducteur
 	if (conducer_dialog.exec() == QDialog::Accepted) {
-		edited_conducer -> setSingleLine(cpw -> isSingleLine());
-		edited_conducer -> setText(cpw -> conducerText());
-		edited_conducer -> singleLineProperties = cpw -> singleLineProperties();
-		edited_conducer -> update();
+		ccpc -> setNewSettings(cpw -> isSingleLine(), cpw -> conducerText(), cpw -> singleLineProperties());
+		diagram() -> undoStack().push(ccpc);
+	} else {
+		delete ccpc;
 	}
 }