HeavenStudioPlus/Assets/Scripts/LevelEditor/Tooltip.cs

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C#
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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;
using TMPro;
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namespace HeavenStudio.Editor
{
public class Tooltip : MonoBehaviour
{
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private RectTransform rectTransform;
[SerializeField] private RectTransform canvasRect;
[SerializeField] private RectTransform background;
[SerializeField] private TMP_Text text;
[SerializeField] private CanvasGroup group;
public static Tooltip instance { get; private set; }
private void Awake()
{
instance = this;
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rectTransform = GetComponent<RectTransform>();
group.alpha = 0;
}
private void Update()
{
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Vector3 anchoredPosition = Input.mousePosition;
Camera camera = Camera.main;
Vector3 canvasScale = Editor.instance.MainCanvas.transform.localScale;
Vector2 scale = new Vector2(canvasScale.x, canvasScale.y);
float toolTipScale = camera.pixelWidth / 1280f;
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if (anchoredPosition.x + background.rect.width * toolTipScale > camera.pixelWidth)
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{
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anchoredPosition.x = camera.pixelWidth - background.rect.width * toolTipScale;
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}
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if (anchoredPosition.x < -camera.pixelWidth)
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{
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anchoredPosition.x = -camera.pixelWidth;
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}
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if (anchoredPosition.y + background.rect.height * toolTipScale > camera.pixelHeight)
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{
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anchoredPosition.y = camera.pixelHeight - background.rect.height * toolTipScale;
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}
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if (anchoredPosition.y < -camera.pixelHeight)
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{
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anchoredPosition.y = -camera.pixelHeight;
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}
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anchoredPosition.z = camera.nearClipPlane;
anchoredPosition = camera.ScreenToWorldPoint(anchoredPosition);
rectTransform.anchoredPosition = anchoredPosition / scale;
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}
public static void OnEnter(string tooltipText, string altTooltipText)
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{
instance.OnEnterPrivate(tooltipText, altTooltipText);
}
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public static void OnExit()
{
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instance.OnExitPrivate();
Editor.instance.tooltipText.text = "";
Editor.instance.tooltipText.ForceMeshUpdate();
}
private void OnEnterPrivate(string tooltipText, string altTooltipText)
{
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group.alpha = 1;
SetText(tooltipText);
Editor.instance.tooltipText.text = altTooltipText.Replace("\n","");
Editor.instance.tooltipText.ForceMeshUpdate();
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}
private void OnExitPrivate()
{
group.alpha = 0;
}
private void SetText(string tooltipText)
{
text.text = tooltipText;
text.ForceMeshUpdate();
Vector2 textSize = text.GetRenderedValues(false);
Vector2 paddingSize = new Vector2(8, 8);
background.sizeDelta = textSize + paddingSize;
}
public static void AddTooltip(GameObject g, string tooltipText, string altTooltipText = "")
{
if (altTooltipText == "")
altTooltipText = tooltipText;
EventTrigger et = g.AddComponent<EventTrigger>();
EventTrigger.Entry pointerEnter = new EventTrigger.Entry();
pointerEnter.eventID = EventTriggerType.PointerEnter;
pointerEnter.callback.AddListener((data) => { OnEnter(tooltipText, altTooltipText); });
EventTrigger.Entry pointerExit = new EventTrigger.Entry();
pointerExit.eventID = EventTriggerType.PointerExit;
pointerExit.callback.AddListener((data) => { OnExit(); });
et.triggers.Add(pointerEnter);
et.triggers.Add(pointerExit);
}
}
}