progress on sequence editing

dialogs/newsequencedialog.h

@@ -4,6 +4,7 @@
 #include <QDialog>
 
 class Project;
+class QTreeWidgetItem;
 struct Sequence;
 
 namespace Ui {
@@ -18,6 +19,7 @@ public:
 	explicit NewSequenceDialog(QWidget *parent = 0);
 	~NewSequenceDialog();
 	Sequence* existing_sequence;
+	QTreeWidgetItem* existing_item;
 	void set_sequence_name(const QString& s);
 
 protected:
@@ -25,7 +27,6 @@ protected:
 
 private slots:
 	void on_buttonBox_accepted();
-
 	void on_comboBox_currentIndexChanged(int index);
 
 private: