132 lines
4.1 KiB
C++
132 lines
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#ifndef SDEXT_PRESENTER_TIMER_HXX
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#define SDEXT_PRESENTER_TIMER_HXX
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#include <com/sun/star/awt/XCallback.hpp>
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#include <com/sun/star/awt/XRequestCallback.hpp>
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#include <cppuhelper/basemutex.hxx>
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#include <cppuhelper/compbase1.hxx>
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#include <osl/mutex.hxx>
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#include <osl/time.h>
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#include <rtl/ref.hxx>
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#include <sal/types.h>
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#include <boost/enable_shared_from_this.hpp>
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#include <boost/function.hpp>
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#include <vector>
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namespace css = ::com::sun::star;
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namespace sdext { namespace presenter {
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class PresenterClockInternalTimer;
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/** The timer allows tasks to be scheduled for execution at a specified time
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in the future.
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*/
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class PresenterTimer
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{
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public:
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/** A task is called with the current time.
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*/
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typedef ::boost::function<void(const TimeValue&)> Task;
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static const sal_Int32 NotAValidTaskId = 0;
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/** Schedule a task to be executed repeatedly. The task is executed the
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first time after nFirst nano-seconds (1000000000 corresponds to one
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second). After that task is executed in intervalls that are
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nIntervall ns long until CancelTask is called.
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*/
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static sal_Int32 ScheduleRepeatedTask (
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const Task& rTask,
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const sal_Int64 nFirst,
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const sal_Int64 nIntervall);
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static void CancelTask (const sal_Int32 nTaskId);
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};
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typedef cppu::WeakComponentImplHelper1<
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css::awt::XCallback
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> PresenterClockTimerInterfaceBase;
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/** A timer that calls its listeners, typically clocks, every second to
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update their current time value.
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*/
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class PresenterClockTimer
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: protected ::cppu::BaseMutex,
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public PresenterClockTimerInterfaceBase
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{
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public:
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class Listener {
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public:
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virtual void TimeHasChanged (const oslDateTime& rCurrentTime) = 0;
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protected:
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~Listener() {}
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};
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typedef ::boost::shared_ptr<Listener> SharedListener;
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static ::rtl::Reference<PresenterClockTimer> Instance (
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const css::uno::Reference<css::uno::XComponentContext>& rxContext);
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void AddListener (const SharedListener& rListener);
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void RemoveListener (const SharedListener& rListener);
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static oslDateTime GetCurrentTime (void);
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// XCallback
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virtual void SAL_CALL notify (const css::uno::Any& rUserData)
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throw (css::uno::RuntimeException);
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private:
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static ::rtl::Reference<PresenterClockTimer> mpInstance;
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::osl::Mutex maMutex;
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typedef ::std::vector<SharedListener> ListenerContainer;
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ListenerContainer maListeners;
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oslDateTime maDateTime;
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sal_Int32 mnTimerTaskId;
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bool mbIsCallbackPending;
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css::uno::Reference<css::awt::XRequestCallback> mxRequestCallback;
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PresenterClockTimer (
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const css::uno::Reference<css::uno::XComponentContext>& rxContext);
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~PresenterClockTimer (void);
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void CheckCurrentTime (const TimeValue& rCurrentTime);
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};
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} } // end of namespace ::sdext::presenter
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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