xref: /aoo41x/main/slideshow/source/inc/event.hxx (revision cdf0e10c)
1*cdf0e10cSrcweir /*************************************************************************
2*cdf0e10cSrcweir  *
3*cdf0e10cSrcweir  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4*cdf0e10cSrcweir  *
5*cdf0e10cSrcweir  * Copyright 2000, 2010 Oracle and/or its affiliates.
6*cdf0e10cSrcweir  *
7*cdf0e10cSrcweir  * OpenOffice.org - a multi-platform office productivity suite
8*cdf0e10cSrcweir  *
9*cdf0e10cSrcweir  * This file is part of OpenOffice.org.
10*cdf0e10cSrcweir  *
11*cdf0e10cSrcweir  * OpenOffice.org is free software: you can redistribute it and/or modify
12*cdf0e10cSrcweir  * it under the terms of the GNU Lesser General Public License version 3
13*cdf0e10cSrcweir  * only, as published by the Free Software Foundation.
14*cdf0e10cSrcweir  *
15*cdf0e10cSrcweir  * OpenOffice.org is distributed in the hope that it will be useful,
16*cdf0e10cSrcweir  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17*cdf0e10cSrcweir  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18*cdf0e10cSrcweir  * GNU Lesser General Public License version 3 for more details
19*cdf0e10cSrcweir  * (a copy is included in the LICENSE file that accompanied this code).
20*cdf0e10cSrcweir  *
21*cdf0e10cSrcweir  * You should have received a copy of the GNU Lesser General Public License
22*cdf0e10cSrcweir  * version 3 along with OpenOffice.org.  If not, see
23*cdf0e10cSrcweir  * <http://www.openoffice.org/license.html>
24*cdf0e10cSrcweir  * for a copy of the LGPLv3 License.
25*cdf0e10cSrcweir  *
26*cdf0e10cSrcweir  ************************************************************************/
27*cdf0e10cSrcweir #ifndef INCLUDED_SLIDESHOW_EVENT_HXX
28*cdf0e10cSrcweir #define INCLUDED_SLIDESHOW_EVENT_HXX
29*cdf0e10cSrcweir 
30*cdf0e10cSrcweir #include "disposable.hxx"
31*cdf0e10cSrcweir #include "debug.hxx"
32*cdf0e10cSrcweir #include <rtl/ustring.hxx>
33*cdf0e10cSrcweir #include <boost/shared_ptr.hpp>
34*cdf0e10cSrcweir #include <vector>
35*cdf0e10cSrcweir 
36*cdf0e10cSrcweir namespace slideshow {
37*cdf0e10cSrcweir namespace internal {
38*cdf0e10cSrcweir 
39*cdf0e10cSrcweir /** Definition of Event interface
40*cdf0e10cSrcweir  */
41*cdf0e10cSrcweir class Event : public Disposable
42*cdf0e10cSrcweir {
43*cdf0e10cSrcweir public:
44*cdf0e10cSrcweir #if OSL_DEBUG_LEVEL > 1
45*cdf0e10cSrcweir     Event (const ::rtl::OUString& rsDescription) : msDescription(rsDescription) {};
46*cdf0e10cSrcweir #endif
47*cdf0e10cSrcweir 
48*cdf0e10cSrcweir     /** Execute the event.
49*cdf0e10cSrcweir 
50*cdf0e10cSrcweir         @return true, if event was successfully executed.
51*cdf0e10cSrcweir     */
52*cdf0e10cSrcweir     virtual bool fire() = 0;
53*cdf0e10cSrcweir 
54*cdf0e10cSrcweir     /** Query whether this event is still charged, i.e. able
55*cdf0e10cSrcweir         to fire.
56*cdf0e10cSrcweir 
57*cdf0e10cSrcweir         Inactive events are ignored by the normal event
58*cdf0e10cSrcweir         containers (EventQueue, UserEventQueue etc.), and no
59*cdf0e10cSrcweir         explicit fire() is called upon them.
60*cdf0e10cSrcweir 
61*cdf0e10cSrcweir         @return true, if this event has already been fired.
62*cdf0e10cSrcweir     */
63*cdf0e10cSrcweir     virtual bool isCharged() const = 0;
64*cdf0e10cSrcweir 
65*cdf0e10cSrcweir     /** Query the activation time instant this event shall be
66*cdf0e10cSrcweir         fired, if it was inserted at instant nCurrentTime into
67*cdf0e10cSrcweir         the queue.
68*cdf0e10cSrcweir 
69*cdf0e10cSrcweir         @param nCurrentTime
70*cdf0e10cSrcweir         The time from which the activation time is to be
71*cdf0e10cSrcweir         calculated from.
72*cdf0e10cSrcweir 
73*cdf0e10cSrcweir         @return the time instant in seconds, on which this
74*cdf0e10cSrcweir         event is to be fired.
75*cdf0e10cSrcweir     */
76*cdf0e10cSrcweir     virtual double getActivationTime( double nCurrentTime ) const = 0;
77*cdf0e10cSrcweir 
78*cdf0e10cSrcweir #if OSL_DEBUG_LEVEL > 1
79*cdf0e10cSrcweir     ::rtl::OUString GetDescription (void) const { return msDescription; }
80*cdf0e10cSrcweir 
81*cdf0e10cSrcweir private:
82*cdf0e10cSrcweir     const ::rtl::OUString msDescription;
83*cdf0e10cSrcweir #endif
84*cdf0e10cSrcweir };
85*cdf0e10cSrcweir 
86*cdf0e10cSrcweir typedef ::boost::shared_ptr< Event > EventSharedPtr;
87*cdf0e10cSrcweir typedef ::std::vector< EventSharedPtr > VectorOfEvents;
88*cdf0e10cSrcweir 
89*cdf0e10cSrcweir } // namespace internal
90*cdf0e10cSrcweir } // namespace presentation
91*cdf0e10cSrcweir 
92*cdf0e10cSrcweir #endif /* INCLUDED_SLIDESHOW_EVENT_HXX */
93