tdf#85428: Clip strokes
[LibreOffice.git] / sd / source / ui / slidesorter / inc / controller / SlsSelectionObserver.hxx
blob11742b8901002b38b15e6280eb8437a36ff7212d
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3 * This file is part of the LibreOffice project.
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/.
9 * This file incorporates work covered by the following license notice:
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 .
20 #pragma once
22 #include <sal/types.h>
23 #include <memory>
24 #include <vector>
26 namespace sd::slidesorter
28 class SlideSorter;
31 class SdrPage;
32 class SdPage;
34 namespace sd::slidesorter::controller
36 /** Observe insertions and deletions of pages between calls to
37 StartObservation() and EndObservation(). When the later is called
38 the selection is set to just the newly inserted pages.
40 class SelectionObserver final
42 public:
43 SelectionObserver(SlideSorter& rSlideSorter);
44 ~SelectionObserver();
46 void NotifyPageEvent(const SdrPage* pPage);
47 void StartObservation();
48 void AbortObservation();
49 void EndObservation();
51 /** Use this little class instead of calling StartObservation and
52 EndObservation directly so that EndObservation is not forgotten or
53 omitted due to an exception or some break or return in the middle of
54 code.
56 class Context
58 public:
59 Context(SlideSorter const& rSlideSorter);
60 ~Context() COVERITY_NOEXCEPT_FALSE;
61 void Abort();
63 private:
64 std::shared_ptr<SelectionObserver> mpSelectionObserver;
67 private:
68 SlideSorter& mrSlideSorter;
69 bool mbIsObservationActive;
70 bool mbPageEventOccurred;
72 ::std::vector<const SdPage*> maInsertedPages;
75 } // end of namespace ::sd::slidesorter::controller
77 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */