BindingTreeViewDataSourceGUI.cs
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using System.Linq;
using UnityEditor.IMGUI.Controls;
using UnityEditorInternal;
using UnityEngine;
using UnityEngine.Playables;
using UnityEngine.Timeline;
namespace UnityEditor.Timeline
{
class BindingTreeViewGUI : TreeViewGUI
{
static readonly float s_RowRightOffset = 10;
static readonly float s_ColorIndicatorTopMargin = 3;
static readonly Color s_KeyColorForNonCurves = new Color(0.7f, 0.7f, 0.7f, 0.5f);
static readonly Color s_ChildrenCurveLabelColor = new Color(1.0f, 1.0f, 1.0f, 0.7f);
static readonly Color s_PhantomPropertyLabelColor = new Color(0.0f, 0.8f, 0.8f, 1f);
static readonly Texture2D s_DefaultScriptTexture = EditorGUIUtility.LoadIcon("cs Script Icon");
static readonly Texture2D s_TrackDefault = EditorGUIUtility.LoadIcon("UnityEngine/ScriptableObject Icon");
public BindingTreeViewGUI(TreeViewController treeView)
: base(treeView, true)
{
k_IconWidth = 13.0f;
iconOverlayGUI += OnItemIconOverlay;
}
public override void OnRowGUI(Rect rowRect, TreeViewItem node, int row, bool selected, bool focused)
{
Color originalColor = GUI.color;
bool leafNode = node.parent != null && node.parent.id != BindingTreeViewDataSource.RootID && node.parent.id != BindingTreeViewDataSource.GroupID;
GUI.color = Color.white;
if (leafNode)
{
CurveTreeViewNode curveNode = node as CurveTreeViewNode;
if (curveNode != null && curveNode.bindings.Any() && curveNode.bindings.First().isPhantom)
GUI.color = s_PhantomPropertyLabelColor;
else
GUI.color = s_ChildrenCurveLabelColor;
}
base.OnRowGUI(rowRect, node, row, selected, focused);
GUI.color = originalColor;
DoCurveColorIndicator(rowRect, node as CurveTreeViewNode);
}
protected override bool IsRenaming(int id)
{
return false;
}
public override bool BeginRename(TreeViewItem item, float delay)
{
return false;
}
static void DoCurveColorIndicator(Rect rect, CurveTreeViewNode node)
{
if (node == null)
return;
if (Event.current.type != EventType.Repaint)
return;
Color originalColor = GUI.color;
if (node.bindings.Length == 1 && !node.bindings[0].isPPtrCurve)
GUI.color = CurveUtility.GetPropertyColor(node.bindings[0].propertyName);
else
GUI.color = s_KeyColorForNonCurves;
Texture icon = CurveUtility.GetIconCurve();
rect = new Rect(rect.xMax - s_RowRightOffset - (icon.width * 0.5f) - 5, rect.yMin + s_ColorIndicatorTopMargin, icon.width, icon.height);
GUI.DrawTexture(rect, icon, ScaleMode.ScaleToFit, true, 1);
GUI.color = originalColor;
}
protected override Texture GetIconForItem(TreeViewItem item)
{
var node = item as CurveTreeViewNode;
if (node == null)
return null;
var type = node.iconType;
if (type == null)
return null;
// track type icon
if (typeof(TrackAsset).IsAssignableFrom(type))
{
var icon = TrackResourceCache.GetTrackIconForType(type);
return icon == s_TrackDefault ? s_DefaultScriptTexture : icon;
}
// custom clip icons always use the script texture
if (typeof(PlayableAsset).IsAssignableFrom(type))
return s_DefaultScriptTexture;
// this will return null for MonoBehaviours without a custom icon.
// use the scripting icon instead
return AssetPreview.GetMiniTypeThumbnail(type) ?? s_DefaultScriptTexture;
}
static void OnItemIconOverlay(TreeViewItem item, Rect rect)
{
var curveNodeItem = item as CurveTreeViewNode;
if (curveNodeItem != null && curveNodeItem.iconOverlay != null)
GUI.Label(rect, curveNodeItem.iconOverlay);
}
}
}