WAGE: Implement Undo action

3 files changed, 15 insertions, 1 deletions

diff --git a/engines/wage/gui.cpp b/engines/wage/gui.cpp
index cd4a62bc20..d158d480f8 100644
--- a/engines/wage/gui.cpp
+++ b/engines/wage/gui.cpp
@@ -832,8 +832,18 @@ void Gui::actionCopy() {
 }
 
 void Gui::actionPaste() {
-	_engine->_inputText = _clipboard;
+	_undobuffer = _engine->_inputText;
+	_engine->_inputText += _clipboard;
 	drawInput();
+
+	_menu->enableCommand(kMenuEdit, kMenuActionUndo, true);
+}
+
+void Gui::actionUndo() {
+	_engine->_inputText = _undobuffer;
+	drawInput();
+
+	_menu->enableCommand(kMenuEdit, kMenuActionUndo, false);
 }
 
 } // End of namespace Wage
diff --git a/engines/wage/gui.h b/engines/wage/gui.h
index 7270a782ce..6d33abb948 100644
--- a/engines/wage/gui.h
+++ b/engines/wage/gui.h
@@ -106,6 +106,7 @@ public:
 
 	void actionCopy();
 	void actionPaste();
+	void actionUndo();
 
 private:
 	void paintBorder(Graphics::Surface *g, Common::Rect &r, WindowType windowType);
@@ -160,6 +161,7 @@ private:
 	int _selectionEndY;
 
 	Common::String _clipboard;
+	Common::String _undobuffer;
 };
 
 } // End of namespace Wage
diff --git a/engines/wage/menu.cpp b/engines/wage/menu.cpp
index 2a1f6e62e4..83e610a92d 100644
--- a/engines/wage/menu.cpp
+++ b/engines/wage/menu.cpp
@@ -516,6 +516,8 @@ void Menu::executeCommand(MenuSubItem *subitem) {
 	case kMenuActionQuit:
 
 	case kMenuActionUndo:
+		_gui->actionUndo();
+		break;
 	case kMenuActionCut:
 		warning("STUB: Unhandled shortcut");
 		break;