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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", | |
1c521100 SA |
28 | "time_marker", |
29 | "mouse_pos" | |
f2739bae SA |
30 | }; |
31 | ||
8997f62a | 32 | const char* MetadataValueNames[MetadataValueTypeCount] = { |
f2739bae SA |
33 | "start_sample", |
34 | "end_sample" | |
35 | "text" | |
36 | }; | |
37 | ||
38 | ||
8997f62a SA |
39 | void MetadataObjObserverInterface::on_metadata_object_created(MetadataObject* obj) |
40 | { | |
41 | (void)obj; | |
42 | } | |
43 | ||
44 | void MetadataObjObserverInterface::on_metadata_object_deleted(MetadataObject* obj) | |
45 | { | |
46 | (void)obj; | |
47 | } | |
48 | ||
49 | void MetadataObjObserverInterface::on_metadata_object_changed(MetadataObject* obj, | |
50 | MetadataValueType value_type) | |
51 | { | |
52 | (void)obj; | |
53 | (void)value_type; | |
54 | } | |
55 | ||
56 | ||
f2739bae SA |
57 | MetadataObject::MetadataObject(MetadataObjManager* obj_manager, uint32_t obj_id, |
58 | MetadataObjectType obj_type) : | |
59 | obj_manager_(obj_manager), | |
60 | id_(obj_id), | |
61 | type_(obj_type) | |
62 | { | |
63 | // Make sure we accept all value type indices | |
8997f62a | 64 | values_.resize(MetadataValueTypeCount); |
f2739bae SA |
65 | } |
66 | ||
67 | uint32_t MetadataObject::id() const | |
68 | { | |
69 | return id_; | |
70 | } | |
71 | ||
72 | MetadataObjectType MetadataObject::type() const | |
73 | { | |
74 | return type_; | |
75 | } | |
76 | ||
8997f62a | 77 | void MetadataObject::set_value(MetadataValueType value_type, const QVariant& value) |
f2739bae SA |
78 | { |
79 | values_.at((uint8_t)value_type) = value; | |
80 | obj_manager_->notify_observers(this, value_type); | |
81 | } | |
82 | ||
83 | QVariant MetadataObject::value(MetadataValueType value_type) const | |
84 | { | |
85 | return values_.at((uint8_t)value_type); | |
86 | } | |
87 | ||
88 | ||
89 | MetadataObject* MetadataObjManager::create_object(MetadataObjectType obj_type) | |
90 | { | |
91 | // Note: This function is not reentrant as race conditions between | |
92 | // emplace_back() and back() may occur | |
93 | ||
94 | objects_.emplace_back(this, objects_.size(), obj_type); | |
95 | MetadataObject* obj = &(objects_.back()); | |
96 | ||
97 | for (MetadataObjObserverInterface *cb : callbacks_) | |
8997f62a | 98 | cb->on_metadata_object_created(obj); |
f2739bae SA |
99 | |
100 | return obj; | |
101 | } | |
102 | ||
103 | void MetadataObjManager::delete_object(uint32_t obj_id) | |
104 | { | |
8997f62a SA |
105 | for (MetadataObjObserverInterface *cb : callbacks_) |
106 | cb->on_metadata_object_deleted(&(objects_.at(obj_id))); | |
f2739bae SA |
107 | |
108 | objects_.erase(std::remove_if(objects_.begin(), objects_.end(), | |
109 | [&](MetadataObject obj) { return obj.id() == obj_id; }), | |
110 | objects_.end()); | |
f2739bae SA |
111 | } |
112 | ||
113 | MetadataObject* MetadataObjManager::find_object_by_type(MetadataObjectType obj_type) | |
114 | { | |
115 | for (MetadataObject& obj : objects_) | |
116 | if (obj.type() == obj_type) | |
117 | return &obj; | |
118 | ||
119 | return nullptr; | |
120 | } | |
121 | ||
122 | MetadataObject* MetadataObjManager::object(uint32_t obj_id) | |
123 | { | |
124 | return &(objects_.at(obj_id)); | |
125 | } | |
126 | ||
127 | void MetadataObjManager::add_observer(MetadataObjObserverInterface *cb) | |
128 | { | |
129 | callbacks_.emplace_back(cb); | |
130 | } | |
131 | ||
132 | void MetadataObjManager::remove_observer(MetadataObjObserverInterface *cb) | |
133 | { | |
134 | for (auto cb_it = callbacks_.begin(); cb_it != callbacks_.end(); cb_it++) | |
135 | if (*cb_it == cb) { | |
136 | callbacks_.erase(cb_it); | |
137 | break; | |
138 | } | |
139 | } | |
140 | ||
141 | void MetadataObjManager::save_objects(QSettings &settings) const | |
142 | { | |
143 | (void)settings; | |
144 | } | |
145 | ||
146 | void MetadataObjManager::restore_objects(QSettings &settings) | |
147 | { | |
148 | (void)settings; | |
149 | } | |
150 | ||
151 | void MetadataObjManager::notify_observers(MetadataObject* obj, | |
152 | MetadataValueType changed_value) | |
153 | { | |
154 | for (MetadataObjObserverInterface *cb : callbacks_) | |
8997f62a | 155 | cb->on_metadata_object_changed(obj, changed_value); |
f2739bae SA |
156 | } |
157 | ||
158 | } // namespace pv |