ICreateHorizontalToolbar.CreateHorizontalToolbarContent

Returns

OverlayToolbar The content of your overlay in horizontal toolbar layout form.

Description

Implement this to return your visual element representing the horizontal toolbar layout of your overlay.

using System.Collections.Generic;
using UnityEditor;
using UnityEditor.Overlays;
using UnityEditor.Toolbars;
using UnityEngine;
using UnityEngine.UIElements;

[Overlay(typeof(SceneView), "Custom Toolbar Overlay")]
class CustomOverlay : Overlay, ICreateHorizontalToolbar, ICreateVerticalToolbar
{
    public override VisualElement CreatePanelContent()
    {
        return new Label("I'm the content shown in panel mode!");
    }

    // Setup horizontal layout to only have CustomToolbarItem visual element.
    public OverlayToolbar CreateHorizontalToolbarContent()
    {
        var horizontalOverlayToolbar = new OverlayToolbar();
        horizontalOverlayToolbar.Add(new CustomToolbarItem());

        return horizontalOverlayToolbar;
    }

    // Setup vertical layout to only have OtherToolbarItem visual element.
    public OverlayToolbar CreateVerticalToolbarContent()
    {
        var verticalOverlayToolbar = new OverlayToolbar();
        verticalOverlayToolbar.Add(new OtherToolbarItem());

        return verticalOverlayToolbar;
    }
}

[EditorToolbarElement("SomeOtherToolbarItem", typeof(SceneView))]
class OtherToolbarItem : EditorToolbarToggle
{
    public OtherToolbarItem()
    {
        icon = EditorGUIUtility.FindTexture("CustomTool");
    }
}

[EditorToolbarElement("MyToolbarItem", typeof(SceneView))]
class CustomToolbarItem : OverlayToolbar
{
    public CustomToolbarItem()
    {
        var icon = AssetDatabase.LoadAssetAtPath<Texture2D>("MyIcon");
        Add(new EditorToolbarButton(icon, () => { Debug.Log("Hello!"); }));
        Add(new EditorToolbarButton(icon, () => { Debug.Log("Hello again!"); }));
        SetupChildrenAsButtonStrip();
    }
}