/* -*- 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 . */ #include "CanvasUpdateRequester.hxx" #include #include using namespace ::com::sun::star; using namespace ::com::sun::star::uno; namespace sd { namespace presenter { //===== CanvasUpdateRequester::Deleter ======================================== class CanvasUpdateRequester::Deleter { public: void operator() (CanvasUpdateRequester* pObject) { delete pObject; } }; //===== CanvasUpdateRequester ================================================= CanvasUpdateRequester::RequesterMap CanvasUpdateRequester::maRequesterMap; std::shared_ptr CanvasUpdateRequester::Instance ( const Reference& rxSharedCanvas) { RequesterMap::const_iterator iRequester; for (iRequester=maRequesterMap.begin(); iRequester!=maRequesterMap.end(); ++iRequester) { if (iRequester->first == rxSharedCanvas) return iRequester->second; } // No requester for the given canvas found. Create a new one. std::shared_ptr pRequester ( new CanvasUpdateRequester(rxSharedCanvas), Deleter()); maRequesterMap.push_back(RequesterMap::value_type(rxSharedCanvas,pRequester)); return pRequester; } CanvasUpdateRequester::CanvasUpdateRequester ( const Reference& rxCanvas) : mxCanvas(rxCanvas), mnUserEventId(nullptr), mbUpdateFlag(false) { Reference xComponent (mxCanvas, UNO_QUERY); if (xComponent.is()) { //xComponent->addEventListener(this); } } CanvasUpdateRequester::~CanvasUpdateRequester() { if (mnUserEventId != nullptr) Application::RemoveUserEvent(mnUserEventId); } void CanvasUpdateRequester::RequestUpdate (const bool bUpdateAll) { if (mnUserEventId == nullptr) { mbUpdateFlag = bUpdateAll; mnUserEventId = Application::PostUserEvent(LINK(this, CanvasUpdateRequester, Callback)); } else { mbUpdateFlag |= bUpdateAll; } } IMPL_LINK_NOARG(CanvasUpdateRequester, Callback, void*, void) { mnUserEventId = nullptr; if (mxCanvas.is()) { mxCanvas->updateScreen(mbUpdateFlag); mbUpdateFlag = false; } } } } // end of namespace ::sd::presenter /* vim:set shiftwidth=4 softtabstop=4 expandtab: */