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