The querytab now shows the elapsed time of the query using the new stopwatch class.

The old elapsedtime code from the mainwindow has been removed.

querytab.h

@@ -2,8 +2,9 @@
 #define QUERYTAB_H
 
 #include "asyncdbconnection.h"
-#include "QueryResultModel.h"
-#include "QueryExplainModel.h"
+#include "queryresultmodel.h"
+#include "queryexplainmodel.h"
+#include "stopwatch.h"
 
 #include <QWidget>
 #include <memory>
@@ -29,7 +30,9 @@ public:
 
 	void setConfig(const ConnectionConfig &config);
 
-	void open();
+	void newdoc();
+//	void open();
+	bool load(const QString &filename);
 	void save();
 	void saveAs();
 	void saveCopyAs();
@@ -37,18 +40,21 @@ public:
 	void execute();
 	void explainAnalyze();
 	void cancel();
+
+	bool canClose();
 private:
 	Ui::QueryTab *ui;
 	MainWindow *m_win;
 	std::unique_ptr<SqlHighlighter> highlighter;
 	ConnectionConfig m_config;
+	StopWatch m_stopwatch;
 
 	QString m_fileName; ///< use setFileName function to set
 	bool m_queryTextChanged = false;
 
 	void setFileName(const QString &filename);
 	bool continueWithoutSavingWarning();
-	void saveSqlTo(const QString &filename);
+	bool saveSqlTo(const QString &filename);
 	QString promptUserForSaveSqlFilename();
 
 
@@ -61,6 +67,9 @@ private:
 	std::string getCommand() const;
 	void explain_ready(ExplainRoot::SPtr explain);
 	void query_ready(std::shared_ptr<Pgsql::Result> dbres);
+
+	void setTabCaption(const QString &caption);
+	void clearResult();
 private slots:
 
 	void queryTextChanged();