forked from Unity-Technologies/UnityCsReference
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathEdge.cs
More file actions
203 lines (169 loc) · 6.65 KB
/
Copy pathEdge.cs
File metadata and controls
203 lines (169 loc) · 6.65 KB
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
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
// Unity C# reference source
// Copyright (c) Unity Technologies. For terms of use, see
// https://unity3d.com/legal/licenses/Unity_Reference_Only_License
using UnityEngine;
using UnityEngine.Experimental.UIElements;
using UnityEngine.Experimental.UIElements.StyleSheets;
namespace UnityEditor.Experimental.UIElements.GraphView
{
internal
class Edge : GraphElement
{
private const float k_EndPointRadius = 4.0f;
private const float k_InterceptWidth = 3.0f;
private const string k_EdgeWidthProperty = "edge-width";
private const string k_SelectedEdgeColorProperty = "selected-edge-color";
private const string k_EdgeColorProperty = "edge-color";
private GraphView m_GraphView;
private NodeAnchorPresenter m_OutputPresenter;
private NodeAnchorPresenter m_InputPresenter;
private NodeAnchor m_LeftAnchor;
private NodeAnchor m_RightAnchor;
EdgeControl m_EdgeControl;
public EdgeControl edgeControl
{
get
{
if (m_EdgeControl == null)
{
m_EdgeControl = CreateEdgeControl();
}
return m_EdgeControl;
}
}
StyleValue<int> m_EdgeWidth;
public int edgeWidth
{
get
{
return m_EdgeWidth.GetSpecifiedValueOrDefault(2);
}
}
StyleValue<Color> m_SelectedColor;
public Color selectedColor
{
get
{
return m_SelectedColor.GetSpecifiedValueOrDefault(new Color(240 / 255f, 240 / 255f, 240 / 255f));
}
}
StyleValue<Color> m_DefaultColor;
public Color defaultColor
{
get
{
return m_DefaultColor.GetSpecifiedValueOrDefault(new Color(146 / 255f, 146 / 255f, 146 / 255f));
}
}
protected Vector3[] PointsAndTangents
{
get { return edgeControl.controlPoints; }
}
public Edge()
{
clippingOptions = ClippingOptions.NoClipping;
ClearClassList();
AddToClassList("edge");
Add(edgeControl);
}
public override bool Overlaps(Rect rectangle)
{
if (!UpdateEdgeControl())
return false;
return edgeControl.Overlaps(rectangle);
}
public override bool ContainsPoint(Vector2 localPoint)
{
if (!UpdateEdgeControl())
return false;
return edgeControl.ContainsPoint(localPoint);
}
protected bool UpdateEdgeControl()
{
// bounding box check succeeded, do more fine grained check by measuring distance to bezier points
var edgePresenter = GetPresenter<EdgePresenter>();
NodeAnchorPresenter outputPresenter = edgePresenter.output;
NodeAnchorPresenter inputPresenter = edgePresenter.input;
if (outputPresenter == null && inputPresenter == null)
return false;
Vector2 from = Vector2.zero;
Vector2 to = Vector2.zero;
GetFromToPoints(edgePresenter, outputPresenter, inputPresenter, ref from, ref to);
edgeControl.from = from;
edgeControl.to = to;
edgeControl.orientation = outputPresenter != null ? outputPresenter.orientation : inputPresenter.orientation;
return true;
}
public override void DoRepaint()
{
// Edges do NOT call base.DoRepaint. It would create a visual artifact.
DrawEdge();
}
protected void GetFromToPoints(EdgePresenter edgePresenter, NodeAnchorPresenter outputPresenter, NodeAnchorPresenter inputPresenter, ref Vector2 from, ref Vector2 to)
{
if (outputPresenter == null && inputPresenter == null)
return;
if (m_GraphView == null)
m_GraphView = GetFirstOfType<GraphView>();
if (outputPresenter != null)
{
if (m_OutputPresenter != outputPresenter)
{
m_LeftAnchor = m_GraphView.Query<NodeAnchor>().Where(e => e.direction == Direction.Output && e.GetPresenter<NodeAnchorPresenter>() == outputPresenter).First();
m_OutputPresenter = outputPresenter;
}
if (m_LeftAnchor != null)
{
from = m_LeftAnchor.GetGlobalCenter();
from = worldTransform.inverse.MultiplyPoint3x4(from);
}
}
else
{
from = worldTransform.inverse.MultiplyPoint3x4(new Vector3(edgePresenter.candidatePosition.x, edgePresenter.candidatePosition.y));
}
if (inputPresenter != null)
{
if (m_InputPresenter != inputPresenter)
{
m_RightAnchor = m_GraphView.Query<NodeAnchor>().Where(e => e.direction == Direction.Input && e.GetPresenter<NodeAnchorPresenter>() == inputPresenter).First();
m_InputPresenter = inputPresenter;
}
if (m_RightAnchor != null)
{
to = m_RightAnchor.GetGlobalCenter();
to = worldTransform.inverse.MultiplyPoint3x4(to);
}
}
else
{
to = worldTransform.inverse.MultiplyPoint3x4(new Vector3(edgePresenter.candidatePosition.x, edgePresenter.candidatePosition.y));
}
}
public override void OnStyleResolved(ICustomStyle styles)
{
base.OnStyleResolved(styles);
styles.ApplyCustomProperty(k_EdgeWidthProperty, ref m_EdgeWidth);
styles.ApplyCustomProperty(k_SelectedEdgeColorProperty, ref m_SelectedColor);
styles.ApplyCustomProperty(k_EdgeColorProperty, ref m_DefaultColor);
}
protected virtual void DrawEdge()
{
if (!UpdateEdgeControl())
return;
var edgePresenter = GetPresenter<EdgePresenter>();
Color edgeColor = edgePresenter.selected ? selectedColor : defaultColor;
edgeControl.edgeColor = edgeColor;
edgeControl.startCapColor = edgeColor;
edgeControl.endCapColor = edgePresenter.input == null ? edgeControl.startCapColor : edgeColor;
}
protected virtual EdgeControl CreateEdgeControl()
{
return new EdgeControl
{
capRadius = k_EndPointRadius,
interceptWidth = k_InterceptWidth
};
}
}
}