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1 : : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : : /*
3 : : * This file is part of the LibreOffice project.
4 : : *
5 : : * This Source Code Form is subject to the terms of the Mozilla Public
6 : : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : : *
9 : : * This file incorporates work covered by the following license notice:
10 : : *
11 : : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : : * contributor license agreements. See the NOTICE file distributed
13 : : * with this work for additional information regarding copyright
14 : : * ownership. The ASF licenses this file to you under the Apache
15 : : * License, Version 2.0 (the "License"); you may not use this file
16 : : * except in compliance with the License. You may obtain a copy of
17 : : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : : */
19 : :
20 : : #ifndef INCLUDED_SLIDESHOW_VIEWEVENTHANDLER_HXX
21 : : #define INCLUDED_SLIDESHOW_VIEWEVENTHANDLER_HXX
22 : :
23 : : #include <boost/shared_ptr.hpp>
24 : : #include <boost/weak_ptr.hpp>
25 : :
26 : : #include "unoview.hxx"
27 : :
28 : :
29 : : /* Definition of ViewEventHandler interface */
30 : :
31 : : namespace slideshow
32 : : {
33 : : namespace internal
34 : : {
35 : :
36 : : /** Interface for handling view events.
37 : :
38 : : Classes implementing this interface can be added to an
39 : : EventMultiplexer object, and are called from there to
40 : : handle view events.
41 : : */
42 : 0 : class ViewEventHandler
43 : : {
44 : : public:
45 : 0 : virtual ~ViewEventHandler() {}
46 : :
47 : : /** Notify new view.
48 : :
49 : : @param rView
50 : : The newly added view
51 : : */
52 : : virtual void viewAdded( const UnoViewSharedPtr& rView ) = 0;
53 : :
54 : : /** Notify removed view.
55 : :
56 : : @param rView
57 : : The removed view
58 : : */
59 : : virtual void viewRemoved( const UnoViewSharedPtr& rView ) = 0;
60 : :
61 : : /** Notify changed view.
62 : :
63 : : Reasons for a viewChanged notification can be
64 : : different view size, transformation, or other device
65 : : properties (color resolution or profile, etc.)
66 : :
67 : : @param rView
68 : : The changed view
69 : : */
70 : : virtual void viewChanged( const UnoViewSharedPtr& rView ) = 0;
71 : :
72 : : /** Notify that all views changed.
73 : :
74 : : Reasons for a viewChanged notification can be
75 : : different view size, transformation, or other device
76 : : properties (color resolution or profile, etc.)
77 : :
78 : : Note that this method avoids hidden inefficiencies
79 : : (O(n^2) behaviour when viewChanged() needs to perform
80 : : linear searches)
81 : : */
82 : : virtual void viewsChanged() = 0;
83 : : };
84 : :
85 : : typedef ::boost::shared_ptr< ViewEventHandler > ViewEventHandlerSharedPtr;
86 : : typedef ::boost::weak_ptr< ViewEventHandler > ViewEventHandlerWeakPtr;
87 : :
88 : : }
89 : : }
90 : :
91 : : #endif /* INCLUDED_SLIDESHOW_VIEWEVENTHANDLER_HXX */
92 : :
93 : : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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