1 files changed, 75 insertions, 0 deletions
diff --git a/src/jabber_whiteboard/undo-stack-observer.h b/src/jabber_whiteboard/undo-stack-observer.h
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+++ b/src/jabber_whiteboard/undo-stack-observer.h
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+/**
+ * Undo / redo / undo log commit listener
+ *
+ * Authors:
+ * David Yip <yipdw@rose-hulman.edu>
+ *
+ * Copyright (c) 2005 Authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifndef __WHITEBOARD_UNDO_COMMIT_OBSERVER_H__
+#define __WHITEBOARD_UNDO_COMMIT_OBSERVER_H__
+
+#include <glibmm.h>
+#include "../undo-stack-observer.h"
+#include "jabber_whiteboard/typedefs.h"
+
+namespace Inkscape {
+
+namespace Whiteboard {
+
+class SessionManager;
+
+/**
+ * Inkboard implementation of Inkscape::UndoStackObserver.
+ */
+class UndoStackObserver : public Inkscape::UndoStackObserver {
+public:
+	enum ObserverType {
+		UNDO_EVENT,
+		REDO_EVENT,
+		UNDO_COMMIT_EVENT
+	};
+
+	UndoStackObserver(SessionManager* sm);
+	~UndoStackObserver();
+	void notifyUndoEvent(XML::Event* log);
+	void notifyRedoEvent(XML::Event* log);
+	void notifyUndoCommitEvent(XML::Event* log);
+
+	void lockObserverFromSending(ObserverType type);
+	void unlockObserverFromSending(ObserverType type);
+
+private:
+	SessionManager* _sm;
+
+	// common action handler
+	void _doAction(XML::Event* log);
+
+	// noncopyable, nonassignable
+	UndoStackObserver(UndoStackObserver const& other);
+	UndoStackObserver& operator=(UndoStackObserver const& other);
+
+	unsigned int _undoSendEventLocks;
+	unsigned int _redoSendEventLocks;
+	unsigned int _undoCommitSendEventLocks;
+};
+
+}
+
+}
+
+#endif
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :