2 * This file is part of the PulseView project.
4 * Copyright (C) 2020 Soeren Apel <soeren@apelpie.net>
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.
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.
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/>.
20 #ifndef PULSEVIEW_PV_METADATA_OBJ_HPP
21 #define PULSEVIEW_PV_METADATA_OBJ_HPP
36 // When adding an entry here, don't forget to update MetadataObjectNames as well
37 enum MetadataObjectType {
38 MetadataObjMainViewRange,
40 MetadataObjTimeMarker,
41 MetadataObjTypeCount // Indicates how many metadata object types there are, must always be last
44 // When adding an entry here, don't forget to update MetadataValueNames as well
45 enum MetadataValueType {
46 MetadataObjStartSample,
49 MetadataObjValueCount // Indicates how many metadata value types there are, must always be last
52 extern const char* MetadataObjectNames[MetadataObjTypeCount];
53 extern const char* MetadataValueNames[MetadataObjValueCount];
56 class MetadataObjManager;
59 class MetadataObjObserverInterface
62 virtual void on_metadata_object_created(uint32_t obj_id, MetadataObjectType obj_type) = 0;
63 virtual void on_metadata_object_deleted(uint32_t obj_id, MetadataObjectType obj_type) = 0;
64 virtual void on_metadata_object_changed(uint32_t obj_id, MetadataObjectType obj_type,
65 MetadataValueType value_type, const QVariant& value) = 0;
72 MetadataObject(MetadataObjManager* obj_manager, uint32_t obj_id, MetadataObjectType obj_type);
73 virtual ~MetadataObject() = default;
75 virtual uint32_t id() const;
76 virtual MetadataObjectType type() const;
78 virtual void set_value(MetadataValueType value_type, QVariant& value);
79 virtual QVariant value(MetadataValueType value_type) const;
81 MetadataObjManager* obj_manager_;
83 MetadataObjectType type_;
84 vector<QVariant> values_;
88 class MetadataObjManager : public QObject
93 MetadataObject* create_object(MetadataObjectType obj_type);
94 void delete_object(uint32_t obj_id);
95 MetadataObject* find_object_by_type(MetadataObjectType obj_type);
96 MetadataObject* object(uint32_t obj_id);
98 void add_observer(MetadataObjObserverInterface *cb);
99 void remove_observer(MetadataObjObserverInterface *cb);
101 void save_objects(QSettings &settings) const;
102 void restore_objects(QSettings &settings);
104 void notify_observers(MetadataObject* obj, MetadataValueType changed_value);
107 vector<MetadataObjObserverInterface*> callbacks_;
108 deque<MetadataObject> objects_;
114 #endif // PULSEVIEW_PV_METADATA_OBJ_HPP