blob: d9f5845af6bd94c2d0072539d2ea874682d4e263 (
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
88
89
90
|
/* -*- 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 .
*/
#pragma once
#include <model/SlsSharedPageDescriptor.hxx>
#include <optional>
#include <tools/gen.hxx>
#include <vector>
namespace sd::slidesorter
{
class SlideSorter;
}
namespace sd::slidesorter::controller
{
/** Manage requests for scrolling page objects into view.
*/
class VisibleAreaManager
{
public:
explicit VisibleAreaManager(SlideSorter& rSlideSorter);
~VisibleAreaManager();
VisibleAreaManager(const VisibleAreaManager&) = delete;
VisibleAreaManager& operator=(const VisibleAreaManager&) = delete;
void ActivateCurrentSlideTracking();
void DeactivateCurrentSlideTracking();
bool IsCurrentSlideTrackingActive() const { return mbIsCurrentSlideTrackingActive; }
/** Request the current slide to be moved into the visible area.
This request is only obeyed when the current slide tracking is
active.
@see ActivateCurrentSlideTracking() and DeactivateCurrentSlideTracking()
*/
void RequestCurrentSlideVisible();
/** Request to make the specified page object visible.
*/
void RequestVisible(const model::SharedPageDescriptor& rpDescriptor, const bool bForce = false);
/** Temporarily disable the update of the visible area.
*/
class TemporaryDisabler
{
public:
explicit TemporaryDisabler(SlideSorter const& rSlideSorter);
~TemporaryDisabler();
private:
VisibleAreaManager& mrVisibleAreaManager;
};
private:
SlideSorter& mrSlideSorter;
/** List of rectangle that someone wants to be moved into the visible
area.
Cleared on every call to ForgetVisibleRequests() and MakeVisible().
*/
::std::vector<::tools::Rectangle> maVisibleRequests;
Point maRequestedVisibleTopLeft;
bool mbIsCurrentSlideTrackingActive;
int mnDisableCount;
void MakeVisible();
::std::optional<Point> GetRequestedTopLeft() const;
};
} // end of namespace ::sd::slidesorter::view
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|