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
91
92
93
94
95
96
97
|
/***
Olive - Non-Linear Video Editor
Copyright (C) 2019 Olive Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***/
#ifndef NODEGRAPH_H
#define NODEGRAPH_H
#include <QObject>
#include "node/node.h"
OLIVE_NAMESPACE_ENTER
/**
* @brief A collection of nodes
*/
class NodeGraph : public QObject
{
Q_OBJECT
public:
/**
* @brief NodeGraph Constructor
*/
NodeGraph() = default;
/**
* @brief Destructively destroys all nodes in the graph
*/
void Clear();
/**
* @brief Add a node to this graph
*
* The node will get added to this graph. It is not automatically connected to anything, any connections will need to
* be made manually after the node is added. The graph takes ownership of the Node.
*/
void AddNode(Node* node);
/**
* @brief Removes a Node from the graph BUT doesn't destroy it. Ownership is passed to `new_parent`.
*/
void TakeNode(Node* node, QObject* new_parent = nullptr);
/**
* @brief Retrieve a complete list of the nodes belonging to this graph
*/
const QList<Node*>& nodes() const;
/**
* @brief Returns whether a certain Node is in the graph or not
*/
bool ContainsNode(Node* n) const;
signals:
/**
* @brief Signal emitted when a Node is added to the graph
*/
void NodeAdded(Node* node);
/**
* @brief Signal emitted when a Node is removed from the graph
*/
void NodeRemoved(Node* node);
/**
* @brief Signal emitted when a member node of this graph has been connected to another (creating an "edge")
*/
void EdgeAdded(NodeEdgePtr edge);
/**
* @brief Signal emitted when a member node of this graph has been disconnected from another (removing an "edge")
*/
void EdgeRemoved(NodeEdgePtr edge);
private:
QList<Node*> node_children_;
};
OLIVE_NAMESPACE_EXIT
#endif // NODEGRAPH_H
|
