Unity：UI Elements でパラパラ漫画風のGUIを作ってみる。

using UnityEditor;
using UnityEngine;
using UnityEngine.UIElements;
using UnityEditor.UIElements;


public class Sample4 : EditorWindow
{
    [MenuItem("UIElementsSamples/Sample4")]
    public static void ShowExample()
    {
        Sample4 wnd = GetWindow<Sample4>();
        wnd.titleContent = new GUIContent("Sample4");
    }

    private Label label;
    private Image image;
    private SliderInt slider;

    public void OnEnable()
    {
        VisualElement root = rootVisualElement;

        // Import UXML
        var visualTree = AssetDatabase.LoadAssetAtPath<VisualTreeAsset>("Assets/Editor/Sample4.uxml");
        var styleSheet = AssetDatabase.LoadAssetAtPath<StyleSheet>("Assets/Editor/Sample4.uss");
        VisualElement labelFromUXML = visualTree.CloneTree();
        labelFromUXML.styleSheets.Add(styleSheet);
        root.Add(labelFromUXML);

        this.label = root.Q<Label>("label");
        this.image = root.Q<Image>("image");
        this.slider = root.Q<SliderInt>("slider");

        slider.RegisterValueChangedCallback<int>(Slider_ValueChanged);
    }

    private void Slider_ValueChanged(ChangeEvent<int> evt)
    {
        this.label.text = $"page {evt.newValue}/{slider.highValue}";
        var backgroundTexture = Resources.Load<Texture2D>($"img_{evt.newValue}");
        this.image.style.backgroundImage = backgroundTexture;
    }
}

Label {
    font-size: 20px;
    -unity-font-style: bold;
	-unity-text-align: middle-center;
    color: rgb(68, 138, 255);
}

Image {
    padding-left: 20;
    padding-top: 20;
    height: 150;
	background-image: url("/Assets/Resources/img_0.png");
}

<?xml version="1.0" encoding="utf-8"?>
<engine:UXML
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:engine="UnityEngine.UIElements"
    xmlns:editor="UnityEditor.UIElements"
    xsi:noNamespaceSchemaLocation="../../UIElementsSchema/UIElements.xsd"
    xsi:schemaLocation="UnityEngine.UIElements ../../UIElementsSchema/UnityEngine.UIElements.xsd
                        UnityEditor.UIElements ../../UIElementsSchema/UnityEditor.UIElements.xsd
                        UnityEditor.PackageManager.UI ../../UIElementsSchema/UnityEditor.PackageManager.UI.xsd">
  
  <engine:Label text="start" name="label" />
  <engine:Image name="image" />
  <engine:SliderInt low-value="0" high-value="92" value="1" name="slider" />
</engine:UXML>