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// Unity C# reference source
// Copyright (c) Unity Technologies. For terms of use, see
// https://unity3d.com/legal/licenses/Unity_Reference_Only_License
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UIElements;
namespace UnityEditor.Experimental.GraphView
{
public class Pill : VisualElement
{
public new class UxmlFactory : UxmlFactory<Pill, UxmlTraits> {}
public new class UxmlTraits : VisualElement.UxmlTraits
{
UxmlBoolAttributeDescription m_Highlighted = new UxmlBoolAttributeDescription { name = "highlighted" };
UxmlStringAttributeDescription m_Text = new UxmlStringAttributeDescription { name = "text" };
public override IEnumerable<UxmlChildElementDescription> uxmlChildElementsDescription
{
get { yield break; }
}
public override void Init(VisualElement ve, IUxmlAttributes bag, CreationContext cc)
{
base.Init(ve, bag, cc);
((Pill)ve).highlighted = m_Highlighted.GetValueFromBag(bag, cc);
((Pill)ve).text = m_Text.GetValueFromBag(bag, cc);
}
}
private readonly Label m_TitleLabel;
private readonly Image m_Icon;
private VisualElement m_Left;
private readonly VisualElement m_LeftContainer;
private VisualElement m_Right;
private readonly VisualElement m_RightContainer;
private bool m_Highlighted = false;
public bool highlighted
{
get { return m_Highlighted; }
set
{
if (m_Highlighted == value)
{
return;
}
m_Highlighted = value;
if (m_Highlighted)
AddToClassList("highlighted");
else
RemoveFromClassList("highlighted");
}
}
public string text
{
get { return m_TitleLabel.text; }
set { m_TitleLabel.text = value; }
}
public Texture icon
{
get { return m_Icon != null ? m_Icon.image : null; }
set
{
if (m_Icon == null || m_Icon.image == value)
return;
m_Icon.image = value;
UpdateIconVisibility();
}
}
public VisualElement left
{
get { return m_Left; }
set
{
if (m_Left == value)
return;
if (m_Left != null)
m_LeftContainer.Remove(m_Left);
m_Left = value;
if (m_Left != null)
m_LeftContainer.Add(m_Left);
UpdateVisibility();
}
}
public VisualElement right
{
get { return m_Right; }
set
{
if (m_Right == value)
return;
if (m_Right != null)
m_RightContainer.Remove(m_Right);
m_Right = value;
if (m_Right != null)
m_RightContainer.Add(m_Right);
UpdateVisibility();
}
}
void UpdateIconVisibility()
{
if (icon == null)
{
RemoveFromClassList("has-icon");
m_Icon.visible = false;
}
else
{
AddToClassList("has-icon");
m_Icon.visible = true;
}
}
void UpdateVisibility()
{
if (m_Left != null)
{
AddToClassList("has-left");
m_LeftContainer.visible = true;
}
else
{
RemoveFromClassList("has-left");
m_LeftContainer.visible = false;
}
if (m_Right != null)
{
AddToClassList("has-right");
m_RightContainer.visible = true;
}
else
{
RemoveFromClassList("has-right");
m_RightContainer.visible = false;
}
}
public Pill()
{
AddStyleSheetPath("StyleSheets/GraphView/Pill.uss");
var tpl = EditorGUIUtility.Load("UXML/GraphView/Pill.uxml") as VisualTreeAsset;
VisualElement mainContainer = tpl.CloneTree();
m_TitleLabel = mainContainer.Q<Label>("title-label");
m_Icon = mainContainer.Q<Image>("icon");
m_LeftContainer = mainContainer.Q("input");
m_RightContainer = mainContainer.Q("output");
Add(mainContainer);
AddToClassList("pill");
UpdateVisibility();
UpdateIconVisibility();
}
public Pill(VisualElement left, VisualElement right) : this()
{
this.left = left;
this.right = right;
UpdateVisibility();
UpdateIconVisibility();
}
}
}