1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/* -*- 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 INCLUDED_SLIDESHOW_WAKEUPEVENT_HXX
#define INCLUDED_SLIDESHOW_WAKEUPEVENT_HXX
#include <canvas/elapsedtime.hxx>
#include "event.hxx"
#include "activitiesqueue.hxx"
#include <boost/bind.hpp>
#include <boost/noncopyable.hpp>
namespace slideshow {
namespace internal {
/** Little helper class, used to set Activities active again
after some sleep period.
Clients can use this class to schedule wakeup events at
the EventQueue, to avoid busy-waiting for the next
discrete time instant.
*/
class WakeupEvent : public Event,
private ::boost::noncopyable
{
public:
WakeupEvent(
::boost::shared_ptr< ::canvas::tools::ElapsedTime > const& pTimeBase,
ActivitiesQueue & rActivityQueue );
virtual void dispose();
virtual bool fire();
virtual bool isCharged() const;
virtual double getActivationTime( double nCurrentTime ) const;
/// Start the internal timer
void start();
/** Set the next timeout this object should generate.
@param nextTime
Absolute time, measured from the last start() call,
when this event should wakeup the Activity again. If
your time is relative, simply call start() just before
every setNextTimeout() call.
*/
void setNextTimeout( double nextTime );
/** Set activity to wakeup.
The activity given here will be reinserted into the
ActivitiesQueue, once the timeout is reached.
*/
void setActivity( const ActivitySharedPtr& rActivity );
private:
::canvas::tools::ElapsedTime maTimer;
double mnNextTime;
ActivitySharedPtr mpActivity;
ActivitiesQueue& mrActivityQueue;
};
typedef ::boost::shared_ptr< WakeupEvent > WakeupEventSharedPtr;
} // namespace internal
} // namespace presentation
#endif /* INCLUDED_SLIDESHOW_WAKEUPEVENT_HXX */
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
