From cc0fa0eae6127b21a197043586f5f55608b5c2f8 Mon Sep 17 00:00:00 2001
From: Arto Jonsson <ajonsson@kapsi.fi>
Date: Fri, 26 Nov 2010 17:56:34 +0200
Subject: [PATCH] Ask to save a modified game

---
 projects/gui/src/mainwindow.cpp | 25 +++++++++++++++++++++++++
 projects/gui/src/mainwindow.h   |  5 +++++
 2 files changed, 30 insertions(+)

diff --git a/projects/gui/src/mainwindow.cpp b/projects/gui/src/mainwindow.cpp
index abf7f8e..25d3377 100644
--- a/projects/gui/src/mainwindow.cpp
+++ b/projects/gui/src/mainwindow.cpp
@@ -421,3 +421,28 @@ bool MainWindow::saveGame(const QString& fileName)
 
 	return true;
 }
+
+void MainWindow::closeEvent(QCloseEvent* event)
+{
+	if (askToSave())
+		event->accept();
+	else
+		event->ignore();
+}
+
+bool MainWindow::askToSave()
+{
+	if (isWindowModified())
+	{
+		QMessageBox::StandardButton result;
+		result = QMessageBox::warning(this, QApplication::applicationName(),
+			tr("The game was modified.\nDo you want to save your changes?"),
+				QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);
+
+		if (result == QMessageBox::Save)
+			return save();
+		else if (result == QMessageBox::Cancel)
+			return false;
+	}
+	return true;
+}
diff --git a/projects/gui/src/mainwindow.h b/projects/gui/src/mainwindow.h
index 04348bf..a9ca0ed 100644
--- a/projects/gui/src/mainwindow.h
+++ b/projects/gui/src/mainwindow.h
@@ -25,6 +25,7 @@ namespace Chess { class Board; class Move; }
 class QMenu;
 class QAction;
 class QTextEdit;
+class QCloseEvent;
 class ChessboardView;
 class ChessboardModel;
 class MoveListModel;
@@ -44,6 +45,9 @@ class MainWindow : public QMainWindow
 		MainWindow(ChessGame* game);
 		QString windowListTitle() const;
 
+	protected:
+		void closeEvent(QCloseEvent* event);
+
 	signals:
 		void promotionMove(const Chess::Move& move, Chess::Side side);
 
@@ -69,6 +73,7 @@ class MainWindow : public QMainWindow
 		void readSettings();
 		QString genericWindowTitle() const;
 		bool saveGame(const QString& fileName);
+		bool askToSave();
 
 		QMenu* m_gameMenu;
 		QMenu* m_viewMenu;
-- 
2.11.4.GIT