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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <AK/Badge.h>
28#include <LibGUI/AbstractView.h>
29#include <LibGUI/Model.h>
30#include <LibGUI/ModelSelection.h>
31
32namespace GUI {
33
34void ModelSelection::remove_matching(Function<bool(const ModelIndex&)> filter)
35{
36 Vector<ModelIndex> to_remove;
37 for (auto& index : m_indexes) {
38 if (filter(index))
39 to_remove.append(index);
40 }
41 for (auto& index : to_remove)
42 m_indexes.remove(index);
43}
44
45void ModelSelection::set(const ModelIndex& index)
46{
47 ASSERT(index.is_valid());
48 if (m_indexes.size() == 1 && m_indexes.contains(index))
49 return;
50 m_indexes.clear();
51 m_indexes.set(index);
52 m_view.notify_selection_changed({});
53}
54
55void ModelSelection::add(const ModelIndex& index)
56{
57 ASSERT(index.is_valid());
58 if (m_indexes.contains(index))
59 return;
60 m_indexes.set(index);
61 m_view.notify_selection_changed({});
62}
63
64void ModelSelection::toggle(const ModelIndex& index)
65{
66 ASSERT(index.is_valid());
67 if (m_indexes.contains(index))
68 m_indexes.remove(index);
69 else
70 m_indexes.set(index);
71 m_view.notify_selection_changed({});
72}
73
74bool ModelSelection::remove(const ModelIndex& index)
75{
76 ASSERT(index.is_valid());
77 if (!m_indexes.contains(index))
78 return false;
79 m_indexes.remove(index);
80 m_view.notify_selection_changed({});
81 return true;
82}
83
84void ModelSelection::clear()
85{
86 if (m_indexes.is_empty())
87 return;
88 m_indexes.clear();
89 m_view.notify_selection_changed({});
90}
91
92}