Add limit to visible components in the Hierarchy

Assets/Editor Toolbox/Editor/Hierarchy/HierarchyPropertyLabel.cs

@@ -179,6 +179,14 @@ public override float GetWidth()
 
         private class HierarchyScriptLabel : HierarchyPropertyLabel
         {
+            //TODO: properties to expose when switching to SerializedReference-based implementation:
+            // - max components
+            // - how to render standard scripts without custom icons
+
+            private const int maxComponents = 5;
+
+            private static readonly GUIContent moreLabelContent = new GUIContent("...");
+
             private static Texture componentIcon;
             private static Texture transformIcon;
             private static Texture warningIcon;
@@ -248,8 +256,15 @@ public override bool Prepare(GameObject target, Rect availableRect)
                 baseWidth = Style.minWidth;
                 components = target.GetComponents<Component>();
                 var componentsCount = components.Length;
+                //NOTE: ignore transform for >1 components
+                var componentsToDisplay = componentsCount - 1;
+                if (componentsToDisplay > maxComponents)
+                {
+                    componentsToDisplay = maxComponents + 1;
+                }
+
                 summWidth = componentsCount > 1
-                    ? (componentsCount - 1) * baseWidth
+                    ? componentsToDisplay * baseWidth
                     : baseWidth;
 
                 isHighlighted = availableRect.Contains(Event.current.mousePosition);
@@ -275,20 +290,32 @@ public override void OnGui(Rect rect)
                     return;
                 }
 
-                rect.xMin -= baseWidth * (componentsCount - 2);
+                //NOTE: we are already in appropriate position for the first component, let's move it depending on the count
+                var componentsToDisplay = componentsCount - 1;
+                if (componentsToDisplay > maxComponents)
+                {
+                    //NOTE: one additional place for "more"
+                    componentsToDisplay = maxComponents + 1;
+                }
+
+                rect.xMin -= baseWidth * (componentsToDisplay - 1);
 
                 var iconRect = rect;
                 iconRect.xMin = rect.xMin;
                 iconRect.xMax = rect.xMin + baseWidth;
 
-                //draw all icons associated to cached components (except transform)
-                for (var i = 1; i < components.Length; i++)
+                //NOTE: draw all icons associated to cached components (except transform)
+                for (var i = 1; i < componentsCount; i++)
                 {
+                    if (i > maxComponents)
+                    {
+                        GUI.Label(iconRect, moreLabelContent);
+                        break;
+                    }
+
                     var component = components[i];
                     var content = GetContent(component);
-                    //draw icon for the current component
                     GUI.Label(iconRect, content);
-                    //adjust rect for the next script icon
                     iconRect.x += baseWidth;
                 }
 

Assets/Editor Toolbox/Editor/Hierarchy/HierarchyTreeUtility.cs

@@ -8,6 +8,7 @@ namespace Toolbox.Editor.Hierarchy
     /// </summary>
     internal static class HierarchyTreeUtility
     {
+        //NOTE: consider caching pre-created texturess for dashed lines and use them to optimize each call
         private const float dashLength = 4.0f;
         private const float spaceLength = 1.0f;
 

Assets/Examples/Scenes/SampleScene.unity

@@ -468,7 +468,12 @@ GameObject:
   - component: {fileID: 580334320}
   - component: {fileID: 580334319}
   - component: {fileID: 580334318}
+  - component: {fileID: 580334325}
   - component: {fileID: 580334317}
+  - component: {fileID: 580334324}
+  - component: {fileID: 580334323}
+  - component: {fileID: 580334322}
+  - component: {fileID: 580334321}
   m_Layer: 0
   m_Name: GameObject (8)
   m_TagString: Untagged
@@ -552,6 +557,74 @@ Transform:
   m_Father: {fileID: 0}
   m_RootOrder: 22
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!65 &580334321
+BoxCollider:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 580334316}
+  m_Material: {fileID: 0}
+  m_IsTrigger: 0
+  m_Enabled: 1
+  serializedVersion: 2
+  m_Size: {x: 1, y: 1, z: 1}
+  m_Center: {x: 0, y: 0, z: 0}
+--- !u!65 &580334322
+BoxCollider:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 580334316}
+  m_Material: {fileID: 0}
+  m_IsTrigger: 0
+  m_Enabled: 1
+  serializedVersion: 2
+  m_Size: {x: 1, y: 1, z: 1}
+  m_Center: {x: 0, y: 0, z: 0}
+--- !u!65 &580334323
+BoxCollider:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 580334316}
+  m_Material: {fileID: 0}
+  m_IsTrigger: 0
+  m_Enabled: 1
+  serializedVersion: 2
+  m_Size: {x: 1, y: 1, z: 1}
+  m_Center: {x: 0, y: 0, z: 0}
+--- !u!65 &580334324
+BoxCollider:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 580334316}
+  m_Material: {fileID: 0}
+  m_IsTrigger: 0
+  m_Enabled: 1
+  serializedVersion: 2
+  m_Size: {x: 1, y: 1, z: 1}
+  m_Center: {x: 0, y: 0, z: 0}
+--- !u!54 &580334325
+Rigidbody:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 580334316}
+  serializedVersion: 2
+  m_Mass: 1
+  m_Drag: 0
+  m_AngularDrag: 0.05
+  m_UseGravity: 1
+  m_IsKinematic: 0
+  m_Interpolate: 0
+  m_Constraints: 0
+  m_CollisionDetection: 0
 --- !u!1 &661896457
 GameObject:
   m_ObjectHideFlags: 0