blob: 63690dc84662894002995aa3113d444aa5aa8876 (
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
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#ifndef INCLUDED_SD_SOURCE_UI_INC_TOOLS_IDLEDETECTION_HXX
#define INCLUDED_SD_SOURCE_UI_INC_TOOLS_IDLEDETECTION_HXX
#include <sal/types.h>
namespace vcl { class Window; }
namespace sd { namespace tools {
/** Detect whether the system is idle and some time consuming operation may
be carried out. This class ditinguishes between different states of
idle-ness.
*/
class IdleDetection
{
public:
/** When GetIdleState() returns this value, then the system is idle.
*/
static const sal_Int32 IDET_IDLE = 0x0000;
/** There are system event pending.
*/
static const sal_Int32 IDET_SYSTEM_EVENT_PENDING = 0x0001;
/** A full screen slide show is running and is active. In contrast
there may be a full screen show be running in an inactive window,
i.e. in the background.
*/
static const sal_Int32 IDET_FULL_SCREEN_SHOW_ACTIVE = 0x0002;
/** A slide show is running in a window.
*/
static const sal_Int32 IDET_WINDOW_SHOW_ACTIVE = 0x0004;
/** A window is being painted.
*/
static const sal_Int32 IDET_WINDOW_PAINTING = 0x0008;
/** Determine whether the system is idle.
@param pWindow
When a valid Window pointer is given then it is checked
whether the window is currently being painting.
@return
This method either returns IDET_IDLE or a combination of
IdleStates values or-ed together that describe what the system
is currently doing so that the caller can decide what to do.
*/
static sal_Int32 GetIdleState (const vcl::Window* pWindow = NULL);
private:
/** Check whether there are input events pending.
*/
static sal_Int32 CheckInputPending();
/** Check whether a slide show is running full screen or in a window.
*/
static sal_Int32 CheckSlideShowRunning();
static sal_Int32 CheckWindowPainting (const vcl::Window& rWindow);
};
} } // end of namespace ::sd::tools
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
