Fix QMessageBox deprecations.

Qt6 complains about the versions of the static function signatures
we’re using for generating various QMessageBoxes.

Except for the “Show plaintext board” dialog, which seems to
be having some “special” issues in Qt6.

1 files changed, 14 insertions, 11 deletions

diff --git a/quacker/quacker.cpp b/quacker/quacker.cpp
index ba3ad6a..17b982e 100644
--- a/quacker/quacker.cpp
+++ b/quacker/quacker.cpp
@@ -121,17 +121,18 @@ void TopLevel::closeEvent(QCloseEvent *closeEvent)
 	{
 		switch (askToSave())
 		{
-		case 0:
+		case QMessageBox::Save:
 			qApp->processEvents();
 			save();
 
 			// fall through
 
-		case 1:
+		case QMessageBox::Discard:
 			closeEvent->accept();
 			break;
 
-		case 2:
+		case QMessageBox::Cancel:
+		default:
 			closeEvent->ignore();
 		}
 	}
@@ -698,13 +699,14 @@ void TopLevel::open()
 	{
 		switch (askToSave())
 		{
-		case 0:
+		case QMessageBox::Save:
 			save();
 
-		case 1:
+		case QMessageBox::Discard:
 			break;
 
-		case 2:
+		case QMessageBox::Cancel:
+		default:
 			return;
 		}
 	}
@@ -759,13 +761,14 @@ void TopLevel::newGame()
 	{
 		switch (askToSave())
 		{
-		case 0:
+		case QMessageBox::Save:
 			save();
 
-		case 1:
+		case QMessageBox::Discard:
 			break;
 
-		case 2:
+		case QMessageBox::Cancel:
+		default:
 			return;
 		}
 	}
@@ -858,9 +861,9 @@ void TopLevel::plugIntoHistoryMatrix(HistoryView *view)
 	connect(this, SIGNAL(historyChanged(const Quackle::History &)), view, SLOT(historyChanged(const Quackle::History &)));
 }
 
-int TopLevel::askToSave()
+QMessageBox::StandardButton TopLevel::askToSave()
 {
-	return QMessageBox::warning(this, tr("Unsaved Moves - Quackle"), dialogText(tr("There are unsaved moves in the current game. Save them?")), tr("&Save"), tr("&Discard"), tr("&Cancel"), 0, 2);
+	return QMessageBox::warning(this, tr("Unsaved Moves - Quackle"), dialogText(tr("There are unsaved moves in the current game. Save them?")), QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel, QMessageBox::Save);
 }
 
 void TopLevel::generateList()