127 lines
3.9 KiB
C++
127 lines
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef SD_VIEW_MASTER_PAGE_OBSERVER_HXX
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#define SD_VIEW_MASTER_PAGE_OBSERVER_HXX
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#include "tools/SdGlobalResourceContainer.hxx"
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#include <osl/mutex.hxx>
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#include <memory>
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#include <set>
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class SdDrawDocument;
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class String;
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namespace sd {
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/** This singleton observes all registered documents for changes in the used
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master pages and in turn informs its listeners about it. One such
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listener is the master page selector control in the tool panel that
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shows the recently used master pages.
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*/
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class MasterPageObserver
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: public SdGlobalResource
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{
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public:
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typedef ::std::set<String> MasterPageNameSet;
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/** Return the single instance of this class.
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*/
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static MasterPageObserver& Instance (void);
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/** The master page observer will listen to events of this document and
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detect changes of the use of master pages.
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*/
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void RegisterDocument (SdDrawDocument& rDocument);
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/** The master page observer will stop to listen to events of this
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document.
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*/
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void UnregisterDocument (SdDrawDocument& rDocument);
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/** Add a listener that is informed of master pages that are newly
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assigned to slides or become unassigned.
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@param rEventListener
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The event listener to call for future events. Call
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RemoveEventListener() before the listener is destroyed.
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*/
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void AddEventListener (const Link& rEventListener);
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/** Remove the given listener from the list of listeners.
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@param rEventListener
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After this method returns the given listener is not called back
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from this object. Passing a listener that has not
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been registered before is safe and is silently ignored.
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*/
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void RemoveEventListener (const Link& rEventListener);
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private:
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static ::osl::Mutex maMutex;
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class Implementation;
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::std::auto_ptr<Implementation> mpImpl;
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MasterPageObserver (void);
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virtual ~MasterPageObserver (void);
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/// The copy constructor is not implemented. Do not use!
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MasterPageObserver (const MasterPageObserver&);
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/// The assignment operator is not implemented. Do not use!
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MasterPageObserver& operator= (const MasterPageObserver&);
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};
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/** Objects of this class are sent to listeners of the MasterPageObserver
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singleton when the list of master pages of one document has changed.
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*/
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class MasterPageObserverEvent
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{
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public:
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enum EventType {
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/// Master page already exists when document is registered.
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ET_MASTER_PAGE_EXISTS,
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/// Master page has been added to a document.
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ET_MASTER_PAGE_ADDED,
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/// Master page has been removed from to a document.
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ET_MASTER_PAGE_REMOVED
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};
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EventType meType;
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SdDrawDocument& mrDocument;
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const String& mrMasterPageName;
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MasterPageObserverEvent (
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EventType eType,
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SdDrawDocument& rDocument,
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const String& rMasterPageName)
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: meType(eType),
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mrDocument(rDocument),
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mrMasterPageName(rMasterPageName)
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{}
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};
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} // end of namespace sd
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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