From 90d54a3aa48f8b1c050754f866ef0cf013f4f06b Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Sun, 30 Sep 2018 18:19:08 +0200
Subject: Ask user to save on new and quit if project is dirty.

---
 src/mainwindow.cc | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 src/mainwindow.h  |  7 ++++++
 src/project.cc    |  5 +++-
 3 files changed, 78 insertions(+), 2 deletions(-)

diff --git a/src/mainwindow.cc b/src/mainwindow.cc
index ad13975..0120eab 100644
--- a/src/mainwindow.cc
+++ b/src/mainwindow.cc
@@ -348,12 +348,64 @@ void MainWindow::updateWindowTitle()
 	setWindowTitle("DGEdit - " + project_string);
 }
 
-void MainWindow::closeEvent(QCloseEvent*)
+void MainWindow::closeEvent(QCloseEvent* event)
 {
+	if(!checkDirty())
+	{
+		event->ignore();
+		return;
+	}
+
 	saveSettings();
 	QApplication::quit();
 }
 
+bool MainWindow::checkDirty()
+{
+	if(project_dirty)
+	{
+		int ret =
+			QMessageBox::question(this, tr("Save before closing project?"),
+			                      tr("The project has changed. Do you want to save "
+			                         "before closing?"),
+			                      QMessageBox::Yes | QMessageBox::No | QMessageBox::Cancel);
+		switch(ret)
+		{
+		case QMessageBox::Yes:
+			saveProject();
+			if(project_dirty)
+			{
+				// Project still dirty - it was not saved (user pressed cancel?)
+				return false;
+			}
+			break;
+		case QMessageBox::No:
+			// Proceed to quit
+			break;
+		case QMessageBox::Cancel:
+			return false;
+		default:
+			break;
+		}
+	}
+
+	return true; // not dirty or user chose not to save
+}
+
+void MainWindow::reset()
+{
+	// Close all tabs
+	while(tab_widget->count())
+	{
+		tab_widget->removeTab(0);
+	}
+
+	instrument_list->clear();
+	channel_list->clear();
+
+	project.reset();
+}
+
 void MainWindow::loadSettings()
 {
 	QByteArray state;
@@ -372,6 +424,13 @@ void MainWindow::saveSettings()
 
 void MainWindow::newProject()
 {
+	if(!checkDirty())
+	{
+		return;
+	}
+
+	reset();
+
 	ProjectDialog dlg(this, project);
 	dlg.show();
 	dlg.exec();
@@ -379,6 +438,11 @@ void MainWindow::newProject()
 
 void MainWindow::loadProject()
 {
+	if(!checkDirty())
+	{
+		return;
+	}
+
 	QString filename =
 		QFileDialog::getOpenFileName(this,
 		                             tr("Load DGEdit Project"),
@@ -401,6 +465,8 @@ void MainWindow::loadProject(QString filename)
 		return;
 	}
 
+	reset();
+
 	QString xml(file.readAll());
 	file.close();
 
diff --git a/src/mainwindow.h b/src/mainwindow.h
index e4c5863..2c12950 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -73,6 +73,13 @@ protected:
 	void closeEvent(QCloseEvent*);
 
 private:
+	//! Check dirty and prompt user to save
+	//! \returns true to continue closing the project, false to bail out.
+	bool checkDirty();
+
+	//! Reset project and reflect in mainwindow (close tabs and lists)
+	void reset();
+
 	void loadSettings();
 	void saveSettings();
 
diff --git a/src/project.cc b/src/project.cc
index 04919db..318898b 100644
--- a/src/project.cc
+++ b/src/project.cc
@@ -584,8 +584,11 @@ QList<int> Project::getChannelList() const
 void Project::reset()
 {
 	RAIIBulkUpdate bulkUpdate(*this);
-	setRawFileRoot("");
 	setProjectName("");
+	setProjectFile("");
+	setRawFileRoot("");
+	setExportPath("");
+
 	instruments.clear();
 	channels.clear();
 	next_id = 0;
-- 
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