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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_SLIDESHOW_SOURCE_INC_MOUSEEVENTHANDLER_HXX
+#define INCLUDED_SLIDESHOW_SOURCE_INC_MOUSEEVENTHANDLER_HXX
+
+#include <sal/types.h>
+
+#include <memory>
+
+namespace com::sun::star::awt { struct MouseEvent; }
+
+
+/* Definition of MouseEventHandler interface */
+
+namespace slideshow::internal
+ {
+
+ /** Interface for handling mouse events.
+
+ Classes implementing this interface can be added to an
+ EventMultiplexer object, and are called from there to
+ handle mouse events.
+ */
+ class MouseEventHandler
+ {
+ public:
+ virtual ~MouseEventHandler() {}
+
+ /** Handle a mouse button pressed event.
+
+ @param e
+ The mouse event that occurred. The x,y coordinates of
+ the event are already transformed back to user
+ coordinate space, taking the inverse transform of the
+ view in which the event occurred.
+
+ @return true, if this handler has successfully
+ processed the mouse event. When this method returns
+ false, possibly other, less prioritized handlers can be
+ called, too.
+ */
+ virtual bool handleMousePressed( const css::awt::MouseEvent& e ) = 0;
+
+ /** Handle a mouse button released event.
+
+ @param e
+ The mouse event that occurred. The x,y coordinates of
+ the event are already transformed back to user
+ coordinate space, taking the inverse transform of the
+ view in which the event occurred.
+
+ @return true, if this handler has successfully
+ processed the pause event. When this method returns
+ false, possibly other, less prioritized handlers are
+ called, too.
+ */
+ virtual bool handleMouseReleased( const css::awt::MouseEvent& e ) = 0;
+
+ /** Handle a mouse was moved with a pressed button event.
+
+ @param e
+ The mouse event that occurred. The x,y coordinates of
+ the event are already transformed back to user
+ coordinate space, taking the inverse transform of the
+ view in which the event occurred.
+
+ @return true, if this handler has successfully
+ processed the pause event. When this method returns
+ false, possibly other, less prioritized handlers are
+ called, too.
+ */
+ virtual bool handleMouseDragged( const css::awt::MouseEvent& e ) = 0;
+
+ /** Handle a mouse was moved event.
+
+ @param e
+ The mouse event that occurred. The x,y coordinates of
+ the event are already transformed back to user
+ coordinate space, taking the inverse transform of the
+ view in which the event occurred.
+
+ @return true, if this handler has successfully
+ processed the pause event. When this method returns
+ false, possibly other, less prioritized handlers are
+ called, too.
+ */
+ virtual bool handleMouseMoved( const css::awt::MouseEvent& e ) = 0;
+ };
+
+ typedef ::std::shared_ptr< MouseEventHandler > MouseEventHandlerSharedPtr;
+
+}
+
+#endif // INCLUDED_SLIDESHOW_SOURCE_INC_MOUSEEVENTHANDLER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */