blob: a5098d20e6420666464457c579197b830d520bb8 (
plain)
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
|
/**************************************************************
*
* 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 "slideshow.hxx"
#include "ViewShellBase.hxx"
#include <rtl/ref.hxx>
#include <tools/link.hxx>
#include <boost/enable_shared_from_this.hpp>
namespace sd {
/** This class is used when a display is removed or added to restart the
slide show. This is necessary at least with DirectX because
deactivating a display invalidates DirectX resources. Accessing those
leads to a crash.
During a restart a possibly installed presenter extension is given the
opportunity to show or hide depending on the number of available displays.
*/
class SlideShowRestarter
: public boost::enable_shared_from_this<SlideShowRestarter>
{
public:
/** Create a new SlideShowRestarter object.
@param rpSlideShow
The slide show is used to determine the current slide, which is
restored after the restart, and of course to stop and start the
slide show.
@param pViewShellBase
Used to get access to a slot dispatcher.
*/
SlideShowRestarter (
const ::rtl::Reference<SlideShow>& rpSlideShow,
ViewShellBase* pViewShellBase);
virtual ~SlideShowRestarter (void);
/** Restarting the slide show is an asynchronous multi step process
which is started by calling this method.
*/
void Restart (void);
private:
sal_Int32 mnEventId;
::rtl::Reference<SlideShow> mpSlideShow;
ViewShellBase* mpViewShellBase;
::boost::shared_ptr<SlideShowRestarter> mpSelf;
sal_Int32 mnDisplayCount;
SfxDispatcher* mpDispatcher;
sal_Int32 mnCurrentSlideNumber;
/** The display count is used to determine whether the number of
displays has changed and thus whether restarting the slide show is
really necessary.
*/
sal_Int32 GetDisplayCount (void);
DECL_LINK(EndPresentation, void*);
/** Restart the presentation on the slide last shown before the restart
was initiated.
*/
void StartPresentation (void);
};
} // end of namespace sd
|
