-// very temporary
-#include "xforms/XWorkArea.h"
+// -*- C++ -*-
+/**
+ * \file WorkArea.h
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author unknown
+ * \author John Levon
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
+#ifndef WORKAREA_H
+#define WORKAREA_H
+
+#include "frontends/key_state.h"
+
+#include <boost/shared_ptr.hpp>
+#include <boost/signals/signal0.hpp>
+#include <boost/signals/signal1.hpp>
+#include <boost/signals/signal2.hpp>
+
+
+class Painter;
+class FuncRequest;
+class LyXKeySym;
+
+/**
+ * The work area class represents the widget that provides the
+ * view onto a document. It is owned by the BufferView, and
+ * is responsible for handing events back to its owning BufferView.
+ * It works in concert with the LyXScreen class to update the
+ * widget view of a document.
+ */
+class WorkArea {
+public:
+ typedef boost::shared_ptr<LyXKeySym> LyXKeySymPtr;
+
+ WorkArea() {}
+
+ virtual ~WorkArea() {}
+
+ /// return the painter object for this work area
+ virtual Painter & getPainter() = 0;
+
+ /// return the width of the work area in pixels
+ virtual int workWidth() const = 0;
+ /// return the height of the work area in pixels
+ virtual int workHeight() const = 0;
+
+ /**
+ * Update the scrollbar.
+ * @param height the total document height in pixels
+ * @param pos the current position in the document, in pixels
+ * @param line_height the line-scroll amount, in pixels
+ */
+ virtual void setScrollbarParams(int height, int pos, int line_height) = 0;
+
+ // FIXME: this is an odd place to have it, but xforms needs it here ...
+ /// a selection exists
+ virtual void haveSelection(bool) const = 0;
+ /// get the X clipboard contents
+ virtual std::string const getClipboard() const = 0;
+ /// fill the clipboard
+ virtual void putClipboard(std::string const &) const = 0;
+
+ /// work area dimensions have changed
+ boost::signal0<void> workAreaResize;
+ /// the scrollbar has changed
+ boost::signal1<void, int> scrollDocView;
+ /// a key combination has been pressed
+ boost::signal2<void, LyXKeySymPtr, key_modifier::state> workAreaKeyPress;
+ /// some mouse event
+ boost::signal1<void, FuncRequest> dispatch;
+ /// emitted when an X client has requested our selection
+ boost::signal0<void> selectionRequested;
+ /// emitted when another X client has stolen our selection
+ boost::signal0<void> selectionLost;
+};
+
+#endif // WORKAREA_H