| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #include "precompiled_sd.hxx" |
| |
| #include "CanvasUpdateRequester.hxx" |
| #include <vcl/svapp.hxx> |
| #include <com/sun/star/lang/XComponent.hpp> |
| |
| using namespace ::com::sun::star; |
| using namespace ::com::sun::star::uno; |
| using ::rtl::OUString; |
| |
| namespace sd { namespace presenter { |
| |
| //===== CanvasUpdateRequester::Deleter ======================================== |
| |
| class CanvasUpdateRequester::Deleter |
| { |
| public: |
| void operator() (CanvasUpdateRequester* pObject) { delete pObject; } |
| }; |
| |
| |
| |
| |
| //===== CanvasUpdateRequester ================================================= |
| |
| CanvasUpdateRequester::RequesterMap CanvasUpdateRequester::maRequesterMap; |
| |
| ::boost::shared_ptr<CanvasUpdateRequester> CanvasUpdateRequester::Instance ( |
| const Reference<rendering::XSpriteCanvas>& 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. |
| ::boost::shared_ptr<CanvasUpdateRequester> pRequester ( |
| new CanvasUpdateRequester(rxSharedCanvas), Deleter()); |
| maRequesterMap.push_back(RequesterMap::value_type(rxSharedCanvas,pRequester)); |
| return pRequester; |
| } |
| |
| |
| |
| |
| CanvasUpdateRequester::CanvasUpdateRequester ( |
| const Reference<rendering::XSpriteCanvas>& rxCanvas) |
| : mxCanvas(rxCanvas), |
| mnUserEventId(0), |
| mbUpdateFlag(sal_False) |
| { |
| Reference<lang::XComponent> xComponent (mxCanvas, UNO_QUERY); |
| if (xComponent.is()) |
| { |
| //xComponent->addEventListener(this); |
| } |
| } |
| |
| |
| |
| |
| CanvasUpdateRequester::~CanvasUpdateRequester (void) |
| { |
| if (mnUserEventId != 0) |
| Application::RemoveUserEvent(mnUserEventId); |
| } |
| |
| |
| |
| |
| void CanvasUpdateRequester::RequestUpdate (const sal_Bool bUpdateAll) |
| { |
| if (mnUserEventId == 0) |
| { |
| mbUpdateFlag = bUpdateAll; |
| mnUserEventId = Application::PostUserEvent(LINK(this, CanvasUpdateRequester, Callback)); |
| } |
| else |
| { |
| mbUpdateFlag |= bUpdateAll; |
| } |
| } |
| |
| |
| |
| IMPL_LINK(CanvasUpdateRequester, Callback, void*, EMPTYARG) |
| { |
| mnUserEventId = 0; |
| if (mxCanvas.is()) |
| { |
| mxCanvas->updateScreen(mbUpdateFlag); |
| mbUpdateFlag = sal_False; |
| } |
| return 0; |
| } |
| |
| |
| } } // end of namespace ::sd::presenter |