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1 | /* |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2020 Soeren Apel <soeren@apelpie.net> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include "metadata_obj.hpp" | |
21 | ||
22 | ||
23 | namespace pv { | |
24 | ||
8997f62a | 25 | const char* MetadataObjectNames[MetadataObjectTypeCount] = { |
f2739bae SA |
26 | "main_view_range", |
27 | "selection", | |
28 | "time_marker" | |
29 | }; | |
30 | ||
8997f62a | 31 | const char* MetadataValueNames[MetadataValueTypeCount] = { |
f2739bae SA |
32 | "start_sample", |
33 | "end_sample" | |
34 | "text" | |
35 | }; | |
36 | ||
37 | ||
8997f62a SA |
38 | void MetadataObjObserverInterface::on_metadata_object_created(MetadataObject* obj) |
39 | { | |
40 | (void)obj; | |
41 | } | |
42 | ||
43 | void MetadataObjObserverInterface::on_metadata_object_deleted(MetadataObject* obj) | |
44 | { | |
45 | (void)obj; | |
46 | } | |
47 | ||
48 | void MetadataObjObserverInterface::on_metadata_object_changed(MetadataObject* obj, | |
49 | MetadataValueType value_type) | |
50 | { | |
51 | (void)obj; | |
52 | (void)value_type; | |
53 | } | |
54 | ||
55 | ||
f2739bae SA |
56 | MetadataObject::MetadataObject(MetadataObjManager* obj_manager, uint32_t obj_id, |
57 | MetadataObjectType obj_type) : | |
58 | obj_manager_(obj_manager), | |
59 | id_(obj_id), | |
60 | type_(obj_type) | |
61 | { | |
62 | // Make sure we accept all value type indices | |
8997f62a | 63 | values_.resize(MetadataValueTypeCount); |
f2739bae SA |
64 | } |
65 | ||
66 | uint32_t MetadataObject::id() const | |
67 | { | |
68 | return id_; | |
69 | } | |
70 | ||
71 | MetadataObjectType MetadataObject::type() const | |
72 | { | |
73 | return type_; | |
74 | } | |
75 | ||
8997f62a | 76 | void MetadataObject::set_value(MetadataValueType value_type, const QVariant& value) |
f2739bae SA |
77 | { |
78 | values_.at((uint8_t)value_type) = value; | |
79 | obj_manager_->notify_observers(this, value_type); | |
80 | } | |
81 | ||
82 | QVariant MetadataObject::value(MetadataValueType value_type) const | |
83 | { | |
84 | return values_.at((uint8_t)value_type); | |
85 | } | |
86 | ||
87 | ||
88 | MetadataObject* MetadataObjManager::create_object(MetadataObjectType obj_type) | |
89 | { | |
90 | // Note: This function is not reentrant as race conditions between | |
91 | // emplace_back() and back() may occur | |
92 | ||
93 | objects_.emplace_back(this, objects_.size(), obj_type); | |
94 | MetadataObject* obj = &(objects_.back()); | |
95 | ||
96 | for (MetadataObjObserverInterface *cb : callbacks_) | |
8997f62a | 97 | cb->on_metadata_object_created(obj); |
f2739bae SA |
98 | |
99 | return obj; | |
100 | } | |
101 | ||
102 | void MetadataObjManager::delete_object(uint32_t obj_id) | |
103 | { | |
8997f62a SA |
104 | for (MetadataObjObserverInterface *cb : callbacks_) |
105 | cb->on_metadata_object_deleted(&(objects_.at(obj_id))); | |
f2739bae SA |
106 | |
107 | objects_.erase(std::remove_if(objects_.begin(), objects_.end(), | |
108 | [&](MetadataObject obj) { return obj.id() == obj_id; }), | |
109 | objects_.end()); | |
f2739bae SA |
110 | } |
111 | ||
112 | MetadataObject* MetadataObjManager::find_object_by_type(MetadataObjectType obj_type) | |
113 | { | |
114 | for (MetadataObject& obj : objects_) | |
115 | if (obj.type() == obj_type) | |
116 | return &obj; | |
117 | ||
118 | return nullptr; | |
119 | } | |
120 | ||
121 | MetadataObject* MetadataObjManager::object(uint32_t obj_id) | |
122 | { | |
123 | return &(objects_.at(obj_id)); | |
124 | } | |
125 | ||
126 | void MetadataObjManager::add_observer(MetadataObjObserverInterface *cb) | |
127 | { | |
128 | callbacks_.emplace_back(cb); | |
129 | } | |
130 | ||
131 | void MetadataObjManager::remove_observer(MetadataObjObserverInterface *cb) | |
132 | { | |
133 | for (auto cb_it = callbacks_.begin(); cb_it != callbacks_.end(); cb_it++) | |
134 | if (*cb_it == cb) { | |
135 | callbacks_.erase(cb_it); | |
136 | break; | |
137 | } | |
138 | } | |
139 | ||
140 | void MetadataObjManager::save_objects(QSettings &settings) const | |
141 | { | |
142 | (void)settings; | |
143 | } | |
144 | ||
145 | void MetadataObjManager::restore_objects(QSettings &settings) | |
146 | { | |
147 | (void)settings; | |
148 | } | |
149 | ||
150 | void MetadataObjManager::notify_observers(MetadataObject* obj, | |
151 | MetadataValueType changed_value) | |
152 | { | |
153 | for (MetadataObjObserverInterface *cb : callbacks_) | |
8997f62a | 154 | cb->on_metadata_object_changed(obj, changed_value); |
f2739bae SA |
155 | } |
156 | ||
157 | } // namespace pv |