GRAPHICS: MACGUI: Allow windows to be hidden

graphics/macgui/macwindow.cpp

@@ -39,8 +39,14 @@ BaseMacWindow::BaseMacWindow(int id, bool editable, MacWindowManager *wm) :
 	_contentIsDirty = true;
 
 	_type = kWindowUnknown;
+
+	_visible = true;
 }
 
+void BaseMacWindow::setVisible(bool visible) { _visible = visible; }
+
+bool BaseMacWindow::isVisible() { return _visible; }
+
 MacWindow::MacWindow(int id, bool scrollable, bool resizable, bool editable, MacWindowManager *wm) :
 		BaseMacWindow(id, editable, wm), _scrollable(scrollable), _resizable(resizable) {
 	_borderIsDirty = true;

graphics/macgui/macwindow.h

@@ -98,6 +98,17 @@ public:
 	 */
 	bool isEditable() { return _editable; }
 
+	/**
+	 * Mutator to change the visible state of the window.
+	 * @param visible Target state.
+	 */
+	void setVisible(bool visible);
+	/**
+	 * Accessor to determine whether a window is active.
+	 * @return True if the window is active.
+	 */
+	bool isVisible();
+
 	/**
 	 * Method to access the entire surface of the window (e.g. to draw an image).
 	 * @return A pointer to the entire surface of the window.
@@ -141,6 +152,8 @@ protected:
 
 	bool (*_callback)(WindowClick, Common::Event &, void *);
 	void *_dataPtr;
+
+	bool _visible;
 };
 
 /**

graphics/macgui/macwindowmanager.cpp

@@ -412,6 +412,9 @@ void MacWindowManager::draw() {
 
 	for (Common::List<BaseMacWindow *>::const_iterator it = _windowStack.begin(); it != _windowStack.end(); it++) {
 		BaseMacWindow *w = *it;
+		if (!w->isVisible())
+			continue;
+
 		if (w->draw(_screen, _fullRefresh)) {
 			w->setDirty(false);